Tigercat 720G 724G 726G FELLER BUNCHER OPERATOR'S MANUAL - PDF DOWNLOAD

720G/724G/726G FELLER BUNCHER

OPERATOR'S MANUAL

SERIAL NUMBER 7205601 – 7206600 SERIAL NUMBER 7243101 – 7244000 SERIAL NUMBER 7265001 – 7266000

ISSUE 4.0, JANUARY 2020 Tigercat Industries Inc. P.O. Box 637 Brantford, Ontario Canada N3T 5P9 Tel: (519) 753-2000 Fax: (519) 753-8272

ii

Tigercat 720G/724G/726G Feller Buncher TABLE OF CONTENTS INTRODUCTION................................................................................................................................................. v MACHINE IDENTIFICATION AND SERIAL NUMBERS..................................................................................... vi STANDARDS FOR MACHINE OPERATOR PROTECTIVE STRUCTURES.....................................................vii NON-APPROVED FIELD PRODUCT CHANGES............................................................................................... x SAFETY...............................................................................................................................................................1 USING HIGH-SPEED DISC SAWS SAFELY.............................................................APPENDIX TO SECTION 1 CONTROLS AND OPERATION...........................................................................................................................2 LUBRICATION AND MAINTENANCE.................................................................................................................3

CALIFORNIA Proposition 65 Warning Diesel engine exhaust and some of its constituents are known to the State of California to cause cancer, birth defects and other reproductive harm.

720G/724G/726G Available Literature Operator's Manual (this manual).....................................................................................................Part No. 43586AENG Service Manual................................................................................................................................Part No. 43587AENG 720G Parts Catalog.........................................................................................................................Part No. 44529A 724G Parts Catalog.........................................................................................................................Part No. 43588A 726G Parts Catalog.........................................................................................................................Part No. 45438A Vehicle Moving and Transporting Instructions.................................................................................Part No. 42403AMUL Engine Operation and Maintenance Manual N67 T2......................................................................Part No. 45045AMUL Engine Operation and Maintenance Manual N67 T4f.....................................................................Part No. 42939AMUL iii

iv

INTRODUCTION................................................................................................................................................. v

Tigercat 720G/724G/726G Feller Buncher INTRODUCTION An Operator's manual, Service manual and a Parts catalog are made available by Tigercat to assist the dealer, customer and operator in becoming familiar with the features of the 720G/724G/726G Feller Buncher.

SERIAL NUMBERS: 720G

7205601 – 7206600

724G

7243101 – 7244000

726G

7265001 – 7266000

The 720G/724G/726G Feller Buncher is designed for harvesting trees, selective felling, thinning and final felling applications in plantations and natural stands.

The Operator's manual will assist the operator with the techniques of proper and safe operation of the 720G/724G/726G Feller Buncher. There is also important information regarding the safe operation of the attachment (if equipped). The Service manual contains safety and servicing procedures and a preventive maintenance schedule to assist in repair and to ensure optimum machine performance.

Section 1 in both the Operator's manual and the Service manual contains safety information that must be followed. As well, throughout the rest of the manuals, DANGER, WARNING and CAUTION notices are displayed where necessary, drawing attention to possible hazards when performing certain procedures.

Only trained personnel should be allowed to operate or work on the machine.

The information contained in this manual is current at time of printing. Improvements to the machine are on-going and may not be covered, therefore in these cases contact your Tigercat dealer for the appropriate information.

Tigercat reserves the right to make changes to the machine after this manual release date that may not immediately appear in this manual.

If the machine in question was built after the release date of this manual and there is a discrepancy, call Tigercat service department.

Tigercat reserves the right to change information contained herein at any time without prior notice.

Tigercat Industries Inc.

v

MACHINE IDENTIFICATION AND SERIAL NUMBERS..................................................................................... vi

Introduction

Tigercat 720G/724G/726G Feller Buncher

MACHINE IDENTIFICATION AND SERIAL NUMBERS Please record all serial numbers related to this machine below and have ready before calling for assistance.

724G-093

Engine Identification Label Location

The engine identification label is located on top of the engine near the engine oil fill cap.

724G-091

Machine Serial Number Plate Location– Cab

Engine Date of Manufacture:_______________________

The machine serial number plate is located inside the cab in the front left corner below the window.

724G-094

Engine Serial Number Plate Location

724G-092

The engine serial number is stamped on the side of the engine, below the exhaust manifold.

Engine Serial Number:___________________________

724G-113

Machine Serial Number Stamp Location –Front and Rear Chassis

The machine serial number is also stamped on the top left side of the front chassis near the centre joint and at the front of the rear chassis on the left side.

Machine Model Number:__________________________ Machine Serial Number:__________________________ Model Year:____________________________________

vi

STANDARDS FOR MACHINE OPERATOR PROTECTIVE STRUCTURES.....................................................vii

Tigercat 720G/724G/726G Feller Buncher

Introduction

STANDARDS FOR MACHINE OPERATOR PROTECTIVE STRUCTURES THE OPERATOR ENCLOSURE FOR THIS MACHINE MEETS THE FOLLOWING STANDARDS: • ISO 8082-2:2009 ROLL OVER PROTECTION STRUCTURES (ROPS) • ISO 8083:2006 FALLING OBJECTS PROTECTION STRUCTURES (FOPS) • ISO 8084:2003 OPERATOR PROTECTION STRUCTURES (OPS)

MODIFICATIONS AND REPAIRS The integrity of the ROPS, FOPS, OPS structure and its continued ability to provide the level of protection it was designed for could be seriously affected by any modifications to the structure, its mounting or to the chassis to which it is attached.

Tigercat emphasizes that the certification of approval of the ROPS, FOPS, OPS structure will become void if any such modifications take place.

Tigercat may officially grant approval for modifications only by: • Written approval of repairs or modifications signed by the Tigercat Engineering Manager; or • Approved modifications officially released by Tigercat.

Both of the above are provided that the work is carried out in the factory approved manner.

Unauthorized modifications and/or repairs made or contributed to by a customer or a Tigercat distributor may result in creating a dangerous situation and therefore the customer or Tigercat distributor will be considered to have assumed the risk involved or be negligent in creating this situation.

Tigercat will not be held responsible for situations arising from having created unauthorized modifications/changes to the structure.

Operator cabs are designed to ROPS, FOPS, OPS standards so that they will withstand force and absorb energy during a roll over (ROPS), when resisting the impact of a falling object (FOPS) and minimize the possibility of operator injury from penetrating objects (OPS). When a permanent deflection of the structure occurs, the structure can no longer provide the original designed level of protection and should be replaced. Attempts to straighten the structure, particularly by the application of heat, can reduce still further the structures remaining capability to protect.

The mounting and the frame or chassis to which the cab is attached is considered an integral part of the ROPS, FOPS, OPS and is included in the design, test and certification of the product.

Contact the Tigercat Service department before attempting any modifications or repair to tip-over protective structures.

Tigercat Industries Inc.

vii

NON-APPROVED FIELD PRODUCT CHANGES............................................................................................... x

Introduction

Tigercat 720G/724G/726G Feller Buncher

NON-APPROVED FIELD PRODUCT CHANGES The installation of any unauthorized attachment or changes made of any kind to this Tigercat product could affect the product's ability to perform as originally intended. The product's integrity, stability and it's ability to perform safely could be at serious risk.

IT IS Tigercat POLICY THAT NO CHANGES ARE TO BE MADE TO ITS PRODUCTS INCLUDING DELETIONS OR ADDITIONS OTHER THAN A Tigercat APPROVED OPTION FITTED IN THE FACTORY APPROVED MANNER. Official approval to make changes or install options is only to be undertaken as follows: • The relevant options for that product must be shown or listed on current Tigercat documentation or literature such as a printed specification sheet, price list, parts manual, or product literature issued by Tigercat.

• Approved options or product changes authorized in writing by the Tigercat Engineering Manager.

Authorization by any other person is unacceptable.

Unauthorized changes made or contributed to by a person or organization may result in creating a dangerous situation and therefore the person or organization will be considered to have assumed the risk involved or be negligent in having created this situation.

Weight is an important factor when considering the addition of options or an attachment, Refer to your Tigercat distributor for information on maximum permissible operating weight and the effect the addition of various options may have on your machine.

Tigercat will not be held responsible for any situation that may arise resulting from Non-approved Field Product Changes to its product.

Should Tigercat become involved in a dispute resulting from changes made to the product without proper authorization by Tigercat as stated above, Tigercat will take whatever action is appropriate to protect its interests.

The product warranty policy and the certification on any safety items installed on the modified product will become NULL and VOID if the above policy is not adhered to as specified.

Non-approved product changes also nullify warranties given to Tigercat by its component manufacturers.

Tigercat Industries Inc.

viii

SAFETY...............................................................................................................................................................1

Tigercat 720G/724G/726G Feller Buncher SECTION 1 – SAFETY Read and understand the entire contents of this manual, and all manuals for any attachments or accessories associated with this machine, prior to operating or servicing this equipment.

CONTENTS – SECTION 1

ISSUE 4.0, JANUARY 2020

A

ARTICULATION LOCK BAR..................................................................................................................................... 1.17 AVOID INJURY FROM BACKOVER ACCIDENTS................................................................................................... 1.9

B

BATTERY DISCONNECT SWITCH......................................................................................................................... 1.14 BATTERY SAFETY...................................................................................................................................................... 1.8 BOOM CYLINDER LOCK......................................................................................................................................... 1.18

C

CAB EXITS................................................................................................................................................................. 1.11 INTERLOCK DOOR SWITCHES.......................................................................................................................... 1.11 COOLING SYSTEM.................................................................................................................................................. 1.16

D

DIESEL EXHAUST FLUID (DEF)............................................................................................................................. 1.10

E

EXHAUST FUMES.................................................................................................................................................... 1.16

F

FELLING TREES....................................................................................................................................................... 1.13 FIRE PREVENTION DRY CHEMICAL CLEANUP PROCEDURES...................................................................................................... 1.29 FIRE PREVENTION GUIDELINES....................................................................................................................... 1.26 WHAT TO DO AFTER A MACHINE FIRE HAS OCCURRED.............................................................................. 1.29 WHAT TO DO TO PREPARE FOR A MACHINE FIRE........................................................................................ 1.27 WHAT TO DO WHEN A MACHINE FIRE OCCURS............................................................................................. 1.28 FLUID INJECTION INJURY...................................................................................................................................... 1.21

G

GENERAL SAFETY PRECAUTIONS........................................................................................................................ 1.4 GREASE INJECTION INJURY................................................................................................................................. 1.22

H

HAZARD ZONE........................................................................................................................................................... 1.4

I

INTERLOCK DOOR SWITCHES............................................................................................................................. 1.11

L

LIGHTNING SAFETY AWARENESS LIGHTNING SAFETY............................................................................................................................................. 1.23 WHAT IS A LIGHTNING STRIKE?........................................................................................................................ 1.23

M

MACHINE STABILITY AND TRACTION.................................................................................................................. 1.12

N

NOTICE LABELS....................................................................................................................................................... 1.39

O

OPERATING SAFETY PRECAUTIONS.................................................................................................................. 1.10

P

PARKING THE MACHINE......................................................................................................................................... 1.14 PILOT SYSTEM PRESSURE, RELEASE................................................................................................................ 1.20 PREPARING THE MACHINE FOR MAINTENANCE.............................................................................................. 1.14 PROTECTIVE CLOTHING.......................................................................................................................................... 1.4

R

Safety

Tigercat 720G/724G/726G Feller Buncher

RELEASE PILOT SYSTEM PRESSURE................................................................................................................. 1.20 S

SAFETY HAZARDS OPERATING............................................................................................................................................................. 1.8 VITON SEALS.......................................................................................................................................................... 1.7 SAFETY PRECAUTIONS GENERAL................................................................................................................................................................. 1.4 OPERATING........................................................................................................................................................... 1.10 SERVICING............................................................................................................................................................ 1.15 SAFETY SIGNAL WORDS.......................................................................................................................................... 1.3 SERVICING SAFETY PRECAUTIONS.................................................................................................................... 1.15

T

TRANSPORTING THE MACHINE........................................................................................................................... 1.14

W

WELDING, PRIOR TO............................................................................................................................................... 1.19 WORKING WITH OIL.................................................................................................................................................. 1.6

1.2

Tigercat 720G/724G/726G Feller Buncher

Safety

SAFETY SYMBOLS

This safety alert symbol means ATTENTION! BECOME ALERT! YOUR SAFETY IS INVOLVED! The safety alert symbol identifies important safety messages on machines, safety signs, in manuals, or elsewhere. When you see this symbol, be alert to the possibility of personal injury or death. Follow the instructions in the safety message.

UNDERSTANDING SIGNAL WORDS DANGER DANGER indicates an imminently hazardous situation which, if not avoided, will result in death or serious injury.

WARNING WARNING indicates a potentially hazardous situation which, if not avoided, could result in death or serious injury.

CAUTION CAUTION indicates a potentially hazardous situation which, if not avoided, may result in minor or moderate injury.

NOTICE NOTICE indicates a potentially damaging situation which, if not avoided, may result in property damage and is not related to personal injury.

1.3

Safety

Tigercat 720G/724G/726G Feller Buncher

GENERAL SAFETY PRECAUTIONS

WARNING

WARNING 24 VOLT ELECTRICAL SYSTEM Safety is a prime responsibility of all.

To minimize the risks and promote safety at all times, this section of the operator's manual details a number of safety rules which must always be followed and obeyed.

These safety rules highlight both general and specific measures the operator should be familiar with and adhere to. More specific measures are illustrated with pictograms which may also be attached to the machine in locations pertinent to their respective message.

Keep safety labels in good condition. Repair or replace damaged labels.

Wear a suitable hearing protective device such as earmuffs or earplugs to protect against noise.

Prolonged exposure to loud noise can cause impairment or loss of hearing.

HAZARD ZONE DANGER The safety of persons outside the cab is the responsibility of the machine operator.

The following diagram illustrates the HAZARD ZONE. All personnel should be kept clear of this zone while the harvesting head is operating.

• Always read the operator's manual before operating the machine. Pay close attention to WARNING and HAZARD identifications.

• Follow all safety inspector and supervisor instructions.

• You must be fully trained to operate this piece of equipment. Know the capabilities and the limitations of the equipment. Learn the most efficient operating techniques. Do not let untrained persons operate the machine.

150m (500ft)

150m (500ft)

150m (500ft)

150m (500ft)

724E-137

Hazard Zone

• Use recommended protective clothing and safety devices such as gloves, safety boots, safety hat, goggles, and ear protection when necessary.

The HAZARD ZONE should be considered off limits to all individuals.

1.4

Tigercat 720G/724G/726G Feller Buncher

Safety

• When mounting or dismounting the machine always use the three point technique. Use one hand with two feet or two hands with one foot.

• When approaching an operating machine on foot, stay at least 150 m (500 ft) away until the operator recognizes your presence. All harvesting equipment must be shut down before advancing to the machine.

WARNING

NOTE: Opening the cab left or right door will stop machine functions. Opening the skylight will NOT stop machine functions.

• Always use the handrails and steps provided when mounting and dismounting from the machine.

• Do not jump off the machine at any time.

Avoid mounting or dismounting the machine in areas with slippery surfaces. You should dry, deice, clean up or cover slippery surfaces with an anti-slip material before mounting or dismounting the machine.

• Do not try to climb onto, or off of, a moving machine.

• Do not use the seat armrest or joystick as a handle when entering or leaving the cab.

• Do not use the machine foot controls as steps.

WARNING It is not recommended to walk on machine surfaces not designated as walking areas.

No attempt should be made to walk on angled steel or irregular shaped surfaces.

Walking surfaces on the machine must be covered with anti-slip materials to provide a safe foot hold and prevent slipping.

These anti-slip surfaces should be maintained on a regular basis. If the surface shows signs of wear, the anti-slip material must be replaced immediately.

WARNING Do not walk on machine surfaces with steel cleated foot wear. Steel cleats on steel surfaces are slippery and do not provide a safe foot hold.

1.5

Safety

Tigercat 720G/724G/726G Feller Buncher

• To reduce risk of fire, machines should be completely cleaned of debris at least daily, particularly around the engine exhaust components.

Hydraulic oil leaks, excess grease, fuel and oil accumulation (including spillage) should be eliminated immediately. Always turn OFF the engine before cleaning the machine.

• Maintain a clean cab interior, clear away trash or debris.

• Machine should be washed completely at every major service.

• Inspect the machine daily for signs of damage or unusual wear, to structures.

• Check for fluid leaks, or faulty operation. Repair or replace malfunctioning parts and systems immediately.

• Check windows and door guards for damage.

• Check protective windows for cracks. A damaged window has reduced strength to stop flying objects.

All damaged windows must be replaced with original equipment.

• Check windows for scratching, crazing and cloudiness that could impair clear visibility all around the machine.

• Do not operate the machine with any defective or inoperable components.

• Check all fluid levels.

• Do not operate the machine with any of the exhaust system, safety covers, oil shields, or other devices removed.

• Keep a first aid kit in an easily accessible location on the vehicle at all times.

1.6

Tigercat 720G/724G/726G Feller Buncher

Safety

WORKING WITH OIL

SAFETY HAZARDS – VITON SEALS

Direct contact with oil implies a risk of skin complaints (example: eczema). Always observe strict hygiene.

O-rings and other seals manufactured of Viton material (fluorine rubber) produce a highly corrosive acid (Hydrofluoric) when subjected to temperatures above 315°C (600°F).

Observe the following when working with oil: • Oils used in this machine may be hot enough to cause serious burns.

This contamination can have extreme consequences on human tissue since it is almost impossible to remove after contact.

• Avoid contact with oil, particularly heated oil.

• Oil on the skin should be washed off immediately with soap and water.

The following procedures are recommended when inspecting equipment subjected to high temperatures such as fire:

• Wear protective gloves. Hands should be clean before putting on gloves. Apply protective cream to the hands to make washing easier.

• Visually inspect any seals or gaskets which have suffered from heat damage. They will appear black and sticky. If these are found, DO NOT TOUCH!

• Don't put oily rags in your pockets.

• Determine the material composition of any seals or gaskets, If fluoroelastomer seals (Viton, fluorel, or tecmoflon) have been used, the affected area must be decontaminated before undertaking further work. Natural rubber and nitrile materials are not hazardous.

• Oil soiled clothing should be changed as soon as possible.

• Always keep an extra overall handy, but not in the machine where it can become dirty.

• Cuts and abrasions must be attended to immediately. Clean them and apply first-aid.

• Disposable heavy duty gloves (neoprene) must be worn and the affected area decontaminated by washing thoroughly with limewater (Calcium Hydroxide solution).

• Avoid breathing in oil fumes.

• Wash hands and arms frequently, for example, at each meal break or as often as possible.

• Any cloths, residue and gloves must be safely discarded after use.

NOTE: Burning discarded items is not recommended except in an approved incineration process where the dangerous products are treated by alkaline scrubbing.

1.7

Safety

Tigercat 720G/724G/726G Feller Buncher

SAFETY HAZARDS – OPERATING • Maintain a charged fire extinguisher on the vehicle at all times and know how to use it.

• Do not carry passengers either in the cab or anywhere else on the machine. The vehicle is provided and approved with seating for the operator only.

• Be aware, when performing service and maintenance tasks, surfaces and grab handles in and around the engine and cooling system may become very hot when the engine has been running.

Contact with hot surfaces may cause injury.

• Do not allow anyone who may be unfit, physically or mentally, or who may be under the influence of alcohol or drugs, to operate the machine.

• Comply with instructions in this manual and also your company regulations for the operation of this machine.

• When moving the machine, there must be enough clearance is available on both sides and above the machine or any of its attachments. Extra clearance may be required particularly where the ground is uneven.

• Read, understand and follow all general safety precautions specified by attachment manufacturer.

• Approach with extreme caution any area where overhanging electrical power lines are present.

Serious injury or death by electrocution can result if the machine or any of its attachments are not kept a safe distance from these lines.

WARNING Engine exhaust, some of its constituents, and certain vehicle components contain or emit chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.

• Maintain a distance of 3 m (10 ft) between the machine or boom and any power line carrying up to 50,000 volts or less plus 10 mm (0.4 in) for each additional 1000 volts above the 50,000 volt level.

• If State/Provincial, local or job site regulations require even greater safety distances than stated above, strictly adhere to these regulations for your own protection.

WARNING Battery posts, terminals and related accessories contain lead and lead compounds, chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.

Wash hands after handling.

• If the machine must be transported, it must be adequately secured to the transporting vehicle. Refer to the VEHICLE MOVING AND TRANSPORTING INSTRUCTIONS booklet supplied with the machine.

Refer to the TABLE OF CONTENTS page in THIS MANUAL for the booklet part number if required.

• Stopping the engine immediately after it has been working under load can result in overheating and premature wear of the engine components. Reduce engine speed to LOW and let run for approximately five minutes to allow gradual dissipation of heat and also to reduce turbo speed. This will also prevent loss of coolant by after boil and possible hot spot damage to the engine.

1.8

Tigercat 720G/724G/726G Feller Buncher

Safety AVOID INJURY FROM BACKOVER ACCIDENTS

CAUTION

Lead-acid batteries contain sulfuric acid which can severely damage eyes or skin on contact.

Always wear a safety face shield, rubber gloves and protective clothing to reduce risk of accidents.

Before moving the machine, be sure all persons are clear of the area.

• Always be alert for bystanders moving into the work area. Use the horn to warn bystanders before moving the machine.

Lead-acid batteries produce flammable and explosive gases. Keep arcs, sparks, open flames and lighted tobacco a safe distance from the batteries.

• When using a signal person, keep the person in view at all times. Always be sure the signal person is clear before backing up.

• If acid is accidentally splashed into your eyes, flush immediately with clean water and get medical attention.

• To avoid backover accidents: • Always look around before you back up. Be sure everyone is clear.

• Do not attempt to charge a frozen battery. It can explode.

• Keep the machine motion alarm in working condition. The motion alarm must sound when the machine is moving forward or in reverse.

• Use a signal person when backing up if the view is obstructed. Always keep the signal person in view.

• Learn the meaning of all flags, signs and markings on the job site and who is responsible for signalling.

• Keep all windows, mirrors and lights in good condition.

• Before servicing the machine, remove the negative (−) battery terminal cable (to the starter motor) from the battery.

• Dust, heavy rain, fog, snow, etc., can reduce visibility. As visibility decreases, reduce speed and use proper lighting.

• When service is complete, connect the negative (−) battery terminal cable and turn ON the battery disconnect switch.

• Do not short out the battery terminals for any reason.

Serious burns or an explosion can result.

1.9

Safety

Tigercat 720G/724G/726G Feller Buncher

OPERATING SAFETY PRECAUTIONS

WARNING DO NOT use a liquid starting aid to start an engine.

This machine is equipped with a computer controlled heating element in the engine intake system. Starting fluids will explode on contact with the heating element.

• Turn OFF the engine and remove the ignition key when refuelling – DO NOT refuel the machine while smoking or near an open flame or sparks.

• Before moving the machine to the work site, all doors, panels, and access covers must be installed properly and secured.

• Attach a grounding strap to an unpainted metal surface on the machine if the refuelling tank or nozzle is so equipped.

FOR TIER 4F MACHINES ONLY

A

726G-003

A Fuel Nozzle Holding Bracket

• Before climbing on the machine to refuel, secure the fuel nozzle in the nozzle holding bracket. Once safely on the machine remove the nozzle and proceed to refuel. When refuelling is complete place the nozzle back in the holding bracket before climbing off the machine.

41581AUNI R0

• Diesel Exhaust Fluid (DEF) may irritate eyes or skin.

Do not get in eyes. Do not get on skin.

First Aid treatment: DEF Contains Urea. If swallowed call a Poison Control Center or doctor immediately. Do not induce vomiting. If in the eyes, rinse with water for 15 minutes. If on the skin, rinse well with water. If irritation persists seek medical treatment.

• Check that no other personnel have moved into a hazardous area before starting the machine.

• Sound the machine horn before starting the machine.

WARNING Use only DEF which meets ISO 22241 specifications. NEVER fill the DEF tank with any other fluid.

DEF is injected into the exhaust gas stream during normal operation of the Selective Catalytic Reduction (SCR) aftertreatment system.

• The operator seat is equipped with lap and shoulder harness belts. Always use both of these restraint systems at all times when operating the machine.

Use of other fluids may cause component damage, or a fire risk which could result in death or serious injury.

• Start the engine according to the instructions in this manual. Refer to OPERATING MACHINE in SECTION 2.

1.10

Tigercat 720G/724G/726G Feller Buncher

Safety

CAB EXITS

INTERLOCK DOOR SWITCHES

There are three ways to exit the cab in case of an emergency.

A

B

Left door– This is the main point of entry and is the only door to be used under normal operating conditions to enter or leave the cab. This door is equipped with an interlock door switch. Refer to INTERLOCK DOOR SWITCH in THIS SECTION. Right door– This door should be used for emergency exits only. Do not use this door to routinely enter or leave the cab. This door is also equipped with an interlock door switch. Always turn OFF the engine before using the right door exit.

M726E-020

A Actuator (On Door) B Interlock Door Switch (Left Door Shown)

The left and right doors are equipped with an interlock door switch to prevent the machine from being operated with the doors open (interlock system is deactivated).

Escape hatch – This is a third cab exit for use if the left exit or right door exit become blocked. This hatch is not equipped with an interlock switch and therefore, when left open, will not deactivate the interlock system. Always turn OFF the engine before using the escape hatch exit.

IMPORTANT! The operator of the machine must be familiar with these emergency exits and how to use them.

A

All operators should practice using all the cab exits to become familiar with escape procedures should they need to perform them in the dark, when the machine is in a rolled position, or other possible adverse conditions.

M726E-044

All three exits should be checked to make sure they are operational and will function in an emergency. The interlock door switch on the left and right doors must not be tampered with or defeated.

B

IMPORTANT! Unlock both doors before operating the machine to allow opening from the outside in case of an emergency. Make sure the doors are operational. Open the doors twice; once using the exterior latch handle and once using the interior handle.

C

200085

200084

A Interlock Reset Switch B Interlock System OFF (Yellow) C Interlock System ON (Green)

For additional information, refer to EMERGENCY EXITS in SECTION 3.

To operate the machine, close both doors and press and release the interlock reset switch. The interlock system icon on the computer display will change from yellow to green.

Once the interlock system has been activated, the safety of both the operator and all persons outside the cab becomes the responsibility of the operator.

NOTE: The engine can be started but the machine functions cannot be operated with the doors open.

WARNING The interlock door switches and the interlock reset switch are safety features and their function must not be defeated in any way.

1.11

Safety

Tigercat 720G/724G/726G Feller Buncher • When travelling, position the attachment and the boom to avoid visual impairment.

• If vision is limited by dust, smoke, fog, rain or snow, stop the machine until visibility is restored.

WARNING

• If the saw guard has been installed, DO NOT REMOVE it until you arrive at the cutting site.

Remove the guard before starting engine.

• When the engine is running, do not allow anyone in areas of the machine where they may be crushed by moving components.

CAUTION

• Maintain a safe operating distance between the machine and other personnel. Never operate the boom or attachment over the heads of bystanders.

Do not open the cab doors when the cab is on a slope. The doors and screens are heavy and could swing out with considerable force. Anyone in the path of the swing could be injured.

• Never travel near co-workers or other pieces of equipment with attachments running.

Anyone opening the door or screen and holding on to it could be pulled out of the cab and injured.

• Do not allow people or other pieces of equipment near the harvesting operation.

• Do not turn on the attachment until the machine is at the harvesting site.

MACHINE STABILITY AND TRACTION When working on slopes, travel straight up or down the slope to reduce the risk of roll-over.

WARNING

NEVER travel across a STEEP slope or side hill: • As logs are added to the accumulator pocket, the handling and the stability of the machine will change.

• Use only prearranged and approved signalling practices.

• Do not open the skylight or the cab doors to increase ventilation when operating the machine.

• Keep the cab doors closed when driving or steering the machine to prevent accidental entry of branches and debris into the cab.

• To avoid tip over, keep the felling head as low as possible to maintain a low center of gravity.

• Always be prepared to dump the load in case of an emergency.

• Do not overload the machine as this can create an unstable condition and cause a roll-over.

• Keep the cab doors closed and always use the seat belt when driving or steering the machine to prevent being thrown from the cab.

• Check for correct tire air pressure. If the pressure is too low it will result in swaying. If the pressure is too high it will result in bouncing. Refer to TIRE PRESSURES in SECTION 3.

• Secure loose items in the cab.

• Prior to commencing work, check all equipment controls to ensure the machine responds correctly.

• All safety screens and guards, must be installed and properly secured.

• Always rest the attachment on the ground when operation is stopped, regardless if the engine is running or turned OFF. • Operate the machine only from a seated position in the operator seat.

• Watch for ground hazards such as metal debris, wire fencing or rocks.

1.12

Tigercat 720G/724G/726G Feller Buncher

Safety

FELLING TREES

WARNING

• Pieces of wood, debris from the ground and even teeth separating from the saw blade become potentially dangerous missiles when thrown from these machines.

DO NOT operate this machine to lift or move any objects other than what it is designed to lift or move.

• Inspect the saw teeth, the tooth retaining bolts, the saw disc and the felling head.

• Make sure all the saw tooth fasteners are at the correct torque value. Refer to the ATTACHMENT MANUFACTURER'S DOCUMENTATION for correct values.

• Replace all worn saw teeth or rotate worn teeth to align unused cutting tips.

The boom system is intended for use in tree felling applications only.

• Do not use the boom to service other equipment.

• Do not use the boom to lift items such as tires, engines, cylinders, boom components, etc.

• Do not modify the boom system.

• Always replace the fasteners when replacing saw teeth.

• Do not add hooks or lugs to the boom for the purpose of attaching lifting rigging.

• Inspect the saw disc for stress cracks and the saw disc does not wobble due to worn saw shaft bearings.

• Do not use the attachment for any purpose other than the intended felling function.

• Never start the machine if the saw blade has missing teeth or teeth retaining bolts, or a bent saw disc.

• Shut down the machine immediately if vibration occurs during cutting.

Maintain a safe operating distance between the machine, the workers and all other personnel. It is the duty of the operator to ensure no person approaches the machine while in use.

• Check the saw discharge area is clear and undamaged.

Failure to follow the above instructions could result in serious injury or death.

• When moving from tree to tree with the saw blade turning, take care not to make contact with other vegetation or debris.

• Never use this machine to clear a logging deck on a new tract of timber when the rest of the equipment and operators are also moving in. Preplan to clear decks in advance before other equipment arrives.

• Do not overload the felling head.

• Work within your operating skills and do not attempt to cut down a tree too large for the felling head.

• Never work alone. Regularly inform other crew members of your intentions, location and length of time to perform duties.

• Make sure the chip discharge area of the felling head (where applicable) is not directed at people, livestock, buildings or other machines.

• Stop the saw blade before leaving the cutting area.

NOTE: The saw blade will continue to free wheel for several minutes after the saw switch has been turned OFF.

• Properly position the felling head in front of the tree and make sure the saw blade is running at full rpm when cutting.

• To stop the blade from rotating, CAREFULLY and gently lower the saw blade onto a stump to prevent unnecessary loading of the saw blade, saw housing and bearings.

• Always know and control the direction the tree will fall to prevent injury to co-workers or damage other vehicles.

• Watch out for obstacles in your path when backing away from a cut.

• Always travel with the felling head as close to the ground as possible. Never elevate the felling head unless necessary.

1.13

Safety

Tigercat 720G/724G/726G Feller Buncher

PARKING THE MACHINE

TRANSPORTING THE MACHINE

WARNING To prevent injury, park the machine as outlined below.

Park the machine in a cleared area at least 15 m (50 ft) away from other equipment. In the event of a fire, this distance will minimize the chance of the fire spreading to other equipment.

Before leaving the cab, lower the felling attachment onto the ground.

If you will be out of the cab for an extended period, turn OFF the machine.

When transporting the machine, enough clearance must be available on both sides and above the machine, or any of its attachments, to avoid contact with power or telephone lines, bridge structures, etc.

Before transporting the machine, all doors, panels and access covers must be installed properly and secured.

Improperly secured doors or panels pose a serious danger to pedestrians and other vehicles.

Refer to 700G SERIES VEHICLE MOVING AND TRANSPORTING INSTRUCTIONS (Part No. 47118AMUL).

PREPARING THE MACHINE FOR MAINTENANCE

1. Park the machine on level ground with the attachment resting firmly on the ground.

WARNING

2. Apply the parking brake.

To prevent injury, prepare the machine as outlined below prior to performing any maintenance or servicing activities.

3. Turn OFF the engine.

4. Remove the ignition key.

• Park the machine as outlined in PARKING THE MACHINE in THIS SECTION. • Install the articulation lock bar. Refer to ARTICULATION LOCK BAR in THIS SECTION and SECTION 3.

A

724G-095

A Battery Disconnect Switch OFF

• Turn OFF the battery disconnect switch if required by the servicing procedure or if the vehicle is to be parked for an extended period of time, such as overnight.

When the engine is turned off all DEF is pumped back to tank before the engine power system is turned off. This process takes approximately 90 seconds.

NOTE: The aftertreatment system and its related components are applicable to Tier 4f machines only.

Refer to AFTERTREATMENT SYSTEM in SECTION 3 for more information.

1.14

Tigercat 720G/724G/726G Feller Buncher

Safety

SERVICING SAFETY PRECAUTIONS • Conduct maintenance inspections at least as frequently as recommended in SECTION 3.

• Before performing maintenance or repair work on any equipment, consult the instruction manual provided by the manufacturer and follow the recommended procedures.

• Clean and service the cooler package daily to maintain moderate engine temperatures.

• Read, understand and follow all operating safety precautions specified by the harvesting attachment manufacturer.

WARNING

• Before servicing the machine, allow the engine cooling system, fuel system, exhaust system, hydraulic system and machine surfaces to cool down.

A

• Use a thermometer to check surface and system temperatures to ensure it is safe to begin service work.

724G-095

A Battery Disconnect Switch

• When servicing or repairing equipment, turn OFF the engine, turn OFF the battery disconnect switch and lock out the switch in accordance with local regulations.

• DO NOT begin service work until the surface or system temperature has cooled down to below 38°C (100°F).

WARNING

• Before servicing the machine, remove the negative (−) battery terminal cable (to the starter motor) from the battery.

Diesel fuel or hydraulic fluid under pressure can penetrate the skin and cause serious personal injury, blindness, or death. If any fluid is injected into the skin, it must be surgically removed within a few hours by a doctor familiar with treating this type of injury.

• When service is complete, connect the negative (−) battery terminal cable and turn ON the battery disconnect switch.

• Install a DO NOT START ENGINE sign on the operator cab door and in the engine compartment when making repairs to the machine.

• Never use your bare hand to check for fluid leaks.

1.15

Safety

Tigercat 720G/724G/726G Feller Buncher • Do not change any pressure or relief settings unless Tigercat authorized instruction has been obtained.

• Use the proper tool for the job. Repair or replace worn or damaged tools, including lifting equipment, immediately.

• Fluid leaks, under pressure, may not be visible.

When searching for leaks, wear work gloves and use a wrench or piece of wood to move hydraulic hoses.

Do not grab hold of hydraulic hoses. Wear safety goggles for eye protection.

• If the engine is running inside a building, make sure sufficient ventilation is available to prevent a build-up of toxic exhaust fumes. Run the engine only when it is necessary for testing or adjustments.

• Work in a ventilated area. If it is necessary to run an engine in an enclosed area, use an exhaust pipe extension to allow toxic exhaust fumes to be routed outdoors.

• Pressure can be maintained in a hydraulic system long after the power source and pump have been shut down. Refer to RELEASE PILOT SYSTEM PRESSURE in THIS SECTION and SECTION 5 of the SERVICE MANUAL.

• If you don't have an exhaust pipe extension, either work outside, or open the shop doors.

• Lower the attachment to the ground, turn OFF the engine and relieve trapped pressure from pilot system and brake accumulators before performing work on components, or disconnecting any hoses.

For information on relieving pressure, refer to PARKING THE MACHINE in THIS SECTION. The accumulators will self drain within two minutes of turning OFF the engine.

• Dispose of fluids properly. Do not pour fluids into the ground, stream, pond or lake.

• Before draining any fluids, know the proper way to dispose of them.

• When performing required hydraulic checks and blade speed adjustments, install the saw blade guard. Refer to the ATTACHMENT MANUFACTURER'S DOCUMENTATION.

• Explosive release of fluids from pressurized cooling systems can cause serious burns.

• Turn OFF the engine. Only remove the coolant fill cap when it is cool enough to touch with bare hands.

Slowly loosen the fill cap to the first stop to relieve pressure before removing the fill cap completely.

1.16

Tigercat 720G/724G/726G Feller Buncher

Safety WARNING Always allow the saw blade to come to a complete stop before approaching attachment to make adjustments.

• Keep your hands, feet, head, and loose clothing away from power driven parts. Tie long hair behind your head. Remove rings and other jewelry to prevent electrical shorts and entanglement in moving parts.

• Always be aware of machine pinch points that could cause injury. Never place body parts within the range of motion of the working parts of the machine.

Failure to follow all of the above instructions could result in serious injury or death from crushing.

CAUTION Do not open cab doors or window screens when machine is on a slope. The doors and screens are heavy and could swing out with considerable force.

ARTICULATION LOCK BAR A

WARNING

B

A E

D

726D-039

A B C D E

C 724E-109

Lock Bar in Locked Position

Front Chassis Rear Chassis Articulation Lock Bar Lynch Pin Retaining Pin

A

To prevent accidental articulation of the machine and injury when working in the center joint area, install the chassis articulation lock bar between the front and rear chassis and hold in place with the lynch pins provided.

Refer to ARTICULATION LOCK BAR in SECTION 3 for instructions.

Never stand under an object supported with hydraulics.

Always use safety stands or a locking device.

724E-110

A Lower Panels

CAUTION The lower access panels are NOT HINGED or permanently attached to the machine and are held in place by the UPPER DOORS. The lower panels can fall during the process of removal from the machine. Once the upper door is opened the lower panel is NOT fully supported and it is not safe to apply any weight or pressure to the panel, as it may fall out of the remaining supports. DO NOT use the LOWER PANELS as hand grips when servicing the machine.

If the engine is running inside a building, ensure that sufficient ventilation is available to prevent a buildup of toxic exhaust fumes. Run the engine only when it is necessary for testing or adjustments.

WARNING DO NOT work below or behind a machine that is parked on a grade.

1.17

Safety

Tigercat 720G/724G/726G Feller Buncher

LIFT BOOM CYLINDER LOCK 1. Before performing work under the attachment or lift boom, firmly support the attachment on level ground, on solid stands or install the lift boom cylinder lock.

A

B

C

724E-073

A 'T' Handle B Lift Boom C Lift Boom Cylinder Gland

5. Install the 'T' handle retaining bolt through the center hole in the lift boom cylinder lock.

Do not stand under the boom or the attachment while installing the lift boom cylinder lock.

Do not damage the cylinder piston rod when installing the lift boom cylinder lock.

A

M726E-044

A 700041

A

Cylinder Lock (Storage Location)

The lift boom cylinder lock is stored on the inside of the rear pump compartment door.

WARNING Always install the lift boom lock before working on or around machine with the boom raised.

Always install the 'T' handle retainer bolt.

Use only to support the boom and the attachment.

2. Completely raise the lift boom.

3. Turn OFF the engine.

A Interlock Reset Switch

6. Turn the ignition key to the RUN position and press and release the interlock reset switch.

7. Slowly lower the boom until the lift boom cylinder lock is securely in place.

8. Turn OFF the engine.

To remove the lift boom cylinder lock: 1. Start the engine.

2. Press and release the interlock reset switch.

3. Raise the boom enough to relieve the pressure on the lift boom cylinder lock.

4. Turn OFF the engine.

5. Remove the 'T' handle retainer bolt, remove the lift boom cylinder lock and store it on the machine.

4. Place the lift boom cylinder lock over one of the two cylinder rods with the open side facing down and wide end against the lift boom cylinder gland.

Do not stand under the boom or the attachment while removing the lift boom cylinder lock.

1.18

Tigercat 720G/724G/726G Feller Buncher

Safety

PRIOR TO WELDING Prior to welding on any part of the machine, the repair area should be cleaned and a fire extinguisher placed nearby. Remove all paint from the area to be welded.

Heated paint gives off toxic fumes.

A

1. Place the welding machine ground clamp as close to the work area as possible.

Stray current can pass through bearings.

M726E-123

A A

724G-095

A Battery Disconnect Switch

2. Turn OFF the battery disconnect switch (left rear of the machine).

3. Disconnect the negative (−) battery terminal cable (to the starter motor) from the battery.

Due to the sensitive electronics on this machine, the following additional precautions must be taken:

700042

A Expansion Module Multi-Pin Connector

5. Disconnect the multi-pin connectors from the expansion modules (behind the right side of the cab and inside the right cab door).

A

A

B 724G-019

B

A Computer and Display (Backside) B Multi-pin Connectors 724G-010

A Engine Electronic Control Unit (ECU) B Chassis Multi-Pin Connector

4. Disconnect the engine electronic control unit (ECU) by unplugging the chassis multi-pin connector from the left side of the engine.

6. Disconnect the computer in the cab by unplugging the two connectors from the back. Remove the back cover to access the plugs.

1.19

Safety

Tigercat 720G/724G/726G Feller Buncher RELEASE PILOT SYSTEM PRESSURE Before working on or around the machine, turn OFF the engine and release the pilot system pressure by performing the following steps: A

1. Close both doors.

2. Turn the ignition key switch to the RUN position. DO NOT turn ON the engine.

A

700079

A DEF Supply Module Multi-pin Connector

1. Disconnect the DEF supply module (rear pump compartment) by unplugging the multi-pin connector.

2. When welding is complete, connect the negative (−) battery terminal cable.

3. Turn ON the battery disconnect switch.

M726E-044

A Interlock Reset Switch

3. Press and release the interlock reset switch (right armrest control panel).

4. Repeatedly apply the brake foot pedal 50 times or more.

OR Engage the front and rear differential lock switches and hold ON for 30 seconds. While waiting, repeatedly apply brake foot pedal at least 10 times.

Pressure may remain in the system after completing all of the above steps. Use caution when loosening hydraulic connections.

For additional information, refer to RELEASE PILOT SYSTEM PRESSURE in SECTION 5 of the SERVICE MANUAL.

1.20

Tigercat 720G/724G/726G Feller Buncher

FLUID INJECTION INJURY WARNING Diesel fuel or hydraulic fluid under pressure can penetrate the skin and could result in serious injury or death. If any fluid is injected under the skin, a medical doctor familiar with the treatment of this type of injury must surgically remove it within a few hours.

Hydraulic and diesel fuel systems on forestry machines operate at very high pressures, often 207 bar (3000 psi) and above. If a loose connection or a defect in a hose occurs, a fine, high velocity stream of fluid will result.

Even for systems pressurized to as little as 7 bar (100 psi), this fluid stream can penetrate human skin as if it were a hypodermic needle.

Safety IN THE EVENT OF ANY SUSPECTED FLUID INJECTION INJURY • REPORT THE INJURY TO YOUR SUPERVISOR IMMEDIATELY. • SEEK PROFESSIONAL MEDICAL ATTENTION IMMEDIATELY. As always the best defence against suffering the effects of fluid injection is to prevent the accident from occurring in the first place.

SEARCHING FOR POSSIBLE FLUID LEAKS: • DO NOT search for leaks with your bare hands.

ALWAYS wear thick protective gloves.

• ALWAYS wear safety goggles for eye protection.

• Keep all body parts well away from the area being investigated for leaks.

Initially, an accidental fluid injection beneath the skin may only produce a slight stinging sensation. There is a danger that you will tend to ignore this, thinking that it will get better with time. Most often, it does not! Within a very short time the wound may begin to throb painfully, indicating that tissue damage has already begun.

Similarly fluid injected directly into a blood vessel can spread rapidly through your circulatory system. The human body has little ability to purge injected fluid.

• Use the end of a long piece of wood to move hoses or other obstacles.

Time becomes critical as tissue damage progresses rapidly. The longer you delay getting professional medical attention, the more damage can occur.

• Place the end of a long piece of wood in the suspected path of any fluid stream. DO NOT use any part of your body.

Although fluid injection accidents are rare, the resulting injury has on occasion required the amputation of a finger, a hand or in some cases the entire limb. The longer the delay in getting professional medical aid, the further up the limb the tissue damage can spread. An injury of this type can become very serious or even fatal if not dealt with promptly and properly.

• Recognize that the source of the leak and the fluid streaming from it may be very small and not easily visible. You may only be able to see the fluid that accumulates as a result of the fluid stream.

WHEN PERFORMING ANY SERVICE WORK • Stop the engine and relieve all diesel fuel or hydraulic pressure before disconnecting any lines or otherwise working on the system.

• DO NOT grab any hydraulic or diesel fuel connectors or hoses when they are subjected to pressure.

• Always verify that hoses are rated for the pressures to which they will be subjected.

• DO NOT use any hoses that you suspect could be defective.

1.21

Safety

Tigercat 720G/724G/726G Feller Buncher

GREASE INJECTION INJURY WHEN USING PNEUMATIC GREASE GUNS Pneumatic grease guns can deliver grease at pressures from 17 – 400 bar (246 – 5801 psi). It takes less than 7 bar (100 psi) to inject a substance through human skin.

ALWAYS get professional medical treatment immediately after any type of injection injury.

Provide the physician with information on the type of grease, the pressure setting of the gun, and similar details.

The amount of fluid injected, type of fluid (or material), pressure at which it was injected, and the elapsed time between injection and surgery all influence the chances of successful treatment for this type of serious injury.

Prior to using a high pressure pneumatic grease gun, perform the following: • All operators of high pressure pneumatic grease guns MUST be trained in the hazards of its operations and the treatment for such injuries.

• Do not operate a high pressure pneumatic grease gun unless you have been trained in the proper operation and are aware of all safety precautions of such a tool.

• Wear protective clothing such as gloves, safety hat and safety glasses.

• Inspect all parts of the grease gun for wear and tear and replace all worn or damaged parts.

• Install protective shrouds on all grease gun nozzles as safety devices.

• Remove dirt and grease from grease fittings prior to greasing.

• Replace any defective grease fittings on equipment with new fittings immediately.

• When badly positioned fittings are identified, replace them with angled or swivel fittings for easier access.

1.22

Tigercat 720G/724G/726G Feller Buncher

Safety

LIGHTNING SAFETY AWARENESS

LIGHTNING SAFETY

WHAT IS A LIGHTNING STRIKE?

In spite of the popular myth that being struck by lightning is an unlikely event, the facts show that lightning strikes occur frequently. As a result loggers are at high risk because their work is outdoors and close to known strike points such as tall trees and heavy equipment.

Lightning is a discharge of the electricity produced by a thunderstorm. As the thunderstorm develops, many small particles of ice within the storm clouds bump together. These collisions create a positive charge at the top of a cloud and a negative charge at the bottom.

As this continues a second positive charge builds up on the ground beneath the cloud, concentrated around high objects such as hills, trees, buildings, equipment and even people.

Loggers can increase their chances of avoiding a lightning strike by following a few simple safety practices: • Designate a member of your crew to: • Monitor daily weather forecasts • Observe local weather conditions

When the difference between the electrical charge in the cloud and on the ground becomes great enough to overcome the resistance of the insulating air between them, an electrical current flows instantly. This is a lightning strike.

• Alert all other members of the crew when a possible lightning threat develops • Don’t start or continue any work that cannot be stopped immediately, when a storm moves nearby.

The electrical potential in a lightning strike can be as much as 100 million volts. Lightning strikes can occur over very large distances, even as much as 60 km (37 miles). Lightning travels both in front of and behind a thunderstorm and so strikes happen even when rain has not started or has stopped. Lightning can hit in the same place, many times and often spreads out over 18 m (60 feet) within the soil around the strike point.

• Anticipate a high-risk situation and take action early by moving to a low-risk location. Do not hesitate. If there is lightning, you are in danger.

Thunder always accompanies lightning. When lightning occurs, the air through which it travels is instantaneously heated to a temperature more than 28,000°C (50,000°F).

The air expands rapidly due to this heating, then quickly contracts as it cools. It is this contracting shock wave that we hear as thunder.

In many areas of the world, lightning strikes are second only to flooding as the greatest cause of storm related deaths and injuries. Although only 10% of lightning strike victims are killed, virtually all from cardiac or respiratory arrest, over 70% of those that survive suffer severe, life-long injury and disability. The symptoms of a lightning strike include memory loss, fatigue, chronic pain, dizziness, sleeping difficulty and the inability to complete several tasks at one time.

• Obey the rule - If you see lightning, Flee. If you hear thunder, Clear. Do not follow the now obsolete guideline to take shelter when the time between seeing lightning and hearing thunder is 30 seconds or less. This does not provide sufficient time to ensure safety.

• Remain in your safe location for 30 minutes after the last sight of lightning or the last sound of thunder.

The safest location during lightning activity is inside a fully enclosed, substantially constructed building, a house, office, school, shopping area, etc. These are the safest because of the electrical wiring and plumbing that they contain. Should lightning strike, the electrical current will travel through the wiring or plumbing into the ground. When such a building is nearby, always seek shelter there first.

Unfortunately loggers do not often work close to buildings and therefore other alternatives need to be considered.

Sheds, weather shelters, hunting blinds, tents and other partially open or small structures are not safe against lightning strikes as they lack the electrically grounded components of larger buildings. They are intended for sun or rain protection only. Do not seek shelter from lightning strikes inside these structures.

1.23

Safety The second safest location during lightning activity is inside a fully enclosed car, van, truck or bus with a metal roof and metal sides. The electrical energy of a lightning strike to these vehicles is carried to ground by the conducting outer metal surfaces. This is called the skin effect.

Tigercat 720G/724G/726G Feller Buncher IF INSIDE A MOTOR VEHICLE OR FULLY ENCLOSED ROPS EQUIPMENT CAB: • Under no circumstances whatsoever step outside of the vehicle or off the equipment to move to another shelter. Very dangerous electrical pathways to ground may go through you.

Do not seek safety from lightning strikes in vehicles with fibreglass or plastic body shells or in convertible top vehicles. None of these are safe, as they do not offer skin effect lightning protection.

• Shut down all operation, turn off the engine, close all doors and raise all windows.

• Sit squarely in the seat with your hands in your lap and your feet flat on the floor mat.

Heavy forestry equipment such as a skidder, loader, feller buncher, forwarder, etc. with a fully enclosed rollover protective structure (ROPS) cab take advantage of the skin effect and are therefore safe in electrical storms.

However machines with a rollover canopy only are not safe against lightning strikes as they are open to electrically conductive rainwater and do not benefit from the skin effect. Operators of this equipment must abandon their machines and get to a safer location before lightning strikes.

• Do not touch any metallic objects referenced to the outside of the vehicle. Do not touch any door and window handles, control levers, foot pedals, steering wheels, cab interior walls and any other inside to outside metal objects.

• Do not touch any radio or telephone connected to an outside antenna.

IF YOU ARE CAUGHT OUTSIDE AND HAVE NOWHERE TO GO: • Avoid wide-open areas where you project above the surrounding landscape.

Note that the rubber tires on motor vehicles and heavy equipment do not increase safety from lightning strikes.

Lightning has already travelled a great distance through the air to strike the vehicle. In comparison a few inches of rubber in a tire offers absolutely no additional insulation.

• Seek shelter in a low place, such as a ditch, ravine, valley, canyon or cave.

• Get away from open water such as ponds or streams.

• Do not take shelter under any isolated tall trees or small groups of trees.

WHAT TO DO IF YOU ARE OUTSIDE AND SEE LIGHTNING OR HEAR THUNDER

• Seek shelter amongst the dense, thick growth of the shortest trees.

IF YOU CAN, GET INSIDE: Run to the nearest building, motor vehicle or fully enclosed ROPS equipment cab immediately. Being anywhere outside is not safe.

• Avoid entering any small enclosures or shelters.

IF INSIDE A BUILDING:

• Keep clear of any materials that can conduct electricity such as wire fences and gates, metal pipes, poles, rails and tools.

• Do not seek shelter under any motor vehicle or heavy equipment.

• Don’t watch the lightning storm from open windows or doorways. Stay in inner rooms.

• Stay at least 15m (50 feet) away from metal objects such as a fuel tank, a vehicle or machinery without a cab, motorcycle, ATV, etc.

• Stay well away from corded telephones, electrical appliances, lighting fixtures, radio microphones, electrical sockets and plumbing pipes and fixtures.

• Stay at least 5m (16 feet) apart from any other members of a group so that lightning won’t travel between you.

• Do not use the telephone except for emergencies.

1.24

Tigercat 720G/724G/726G Feller Buncher

Safety

WHAT TO DO IF YOU FEEL YOUR SKIN TINGLING, YOUR HAIR STANDS ON END, LIGHT METAL OBJECTS VIBRATE OR YOU HEAR A CRACKLING SOUND: • Lightning is probably about to strike. You only have a few seconds to act.

• Put your feet together. Crouch down like in a baseball catcher’s position. Hold your head down.

Cover your ears to protect them against the noise of the thunder.

• Do not lie flat on the ground. By touching as little of the ground as possible, the lightning may not move across the ground to you.

WHAT TO DO IF A CO-WORKER HAS BEEN STRUCK BY LIGHTNING: • The victim does not carry any electrical charge.

There is no danger to anyone helping this person.

You can touch him or her immediately.

• Call your local emergency response telephone number immediately.

• If the victim has no pulse, their heart has stopped or they have stopped breathing, call for professional medical help immediately and then begin administering appropriate first aid. Use a portable defibrillator if one is available (as required).

• Be careful about staying in the storm to take care of the victim. You can get hit by lightning too. If you can, move the victim to a building as soon as possible.

• To further increase your awareness about lightning safety, see the following web sites: • National Weather Service Lightning Safety http://www.lightningsafety.noaa.gov • National Lightning Safety Institute http://www.lightningsafety.com

1.25

Safety

Tigercat 720G/724G/726G Feller Buncher

FIRE PREVENTION

• Clean out all accumulated forest debris (twigs, pine needles, branches, bark, leaves, saw dust, small wood chips) and any other combustible materials from inside the machine belly pans or lower machine structures as well as from areas in proximity to the engine, fuel and hydraulic oil systems no less frequently than at the completion of each work shift.

When working in a forest environment, it is impossible to prevent combustible debris from collecting in tight corners of the machine. This debris may cause a fire.

However, when mixed with fuel, oil or grease in a hot or confined place, the danger of fire is greatly increased.

The following fire prevention guidelines should be used to supplement the operator’s fire prevention efforts. In no case should the guidelines be used, or assumed, as replacements for diligent operator efforts at preventing fires.

The following guidelines will help to keep your equipment up and running efficiently and keep the risk of fire to a minimum: • Maintain a CHARGED fire extinguisher on the machine at all times and KNOW HOW TO USE IT. • Remove debris and blow out dust regularly from the air intake doors, engine radiator and charge air cooler, hydraulic oil cooler, diesel fuel cooler and air conditioning condenser core to prevent overheating of the engine and hydraulics and to maintain efficient operation of the machine. Refer to COOLER PACKAGE, CLEANING in SECTION 3.

• Inspect the machine regularly for any signs of diesel fuel or hydraulic system leakage. Check for worn or eroded fuel or hydraulic lines before starting up any equipment.

• Clean up any grease, diesel fuel, hydraulic and lubricating oil accumulation and spillage immediately.

• Steam clean the engine, hydraulic pumps, transmission, brake, fuel and hydraulic tank compartments and all machine belly pans at least once a month or more frequently when working in logging conditions where large amounts of combustible forest debris are present.

• Use only non-flammable solutions for cleaning the machine and components.

• Inspect the exhaust system daily for any signs of leakage. Check for worn, cracked, broken or damaged pipes or muffler. Also check for missing or damaged bolts or clamps. Should any exhaust leaks or defective parts be found, repairs must be made immediately. Engine exhaust leaks can cause fires.

Do not operate the machine until the exhaust leak is repaired.

• During daily operation of the machine, the occurrence of exhaust leaks are usually accompanied by a change or increase in engine exhaust noise levels. These audible warnings cannot be ignored. Should any exhaust leaks occur during operation, the machine must be shut down immediately and not put back to work until the necessary repairs have been completed.

• Blow off all forest debris and fine organic material accumulated near hot engine exhaust components (turbocharger and exhaust manifold as well as exhaust pipes and muffler) at the completion of each work shift or more frequently when working in logging conditions where large amounts of combustible forest debris are present.

Visual inspection after blow off to ensure thorough cleanliness is vital. Engine exhaust systems provide numerous small pockets where saw dust, small wood chips and other flammable forest debris can gather. Even small accumulations close to hot exhaust components can ignite and smoulder. If dislodged this smouldering debris can fall into other areas of the machine and thereby spread a fire.

• Park the machine at least 15 m (50 ft) away from other equipment at the end of each shift.

• DO NOT leave the machine parked with boom, arch or blade suspended off the ground. If Supporting hydraulic hoses that burn through during a fire, will inject pressurized hydraulic oil into the fire causing the boom, arch or blade to fall rapidly to the ground.

• Turn the battery disconnect switch to OFF at shut down to de-energize all electrical circuits.

1.26

Tigercat 720G/724G/726G Feller Buncher • Remain with the machine for at least 45 minutes at the end of operations while the machine cools.

• Remove all keys, lock equipment and fuel fill cap at the end of operations to reduce the risk of vandalism.

Safety WHAT TO DO TO PREPARE FOR A MACHINE FIRE • Prevent the fire from happening in the first place by ensuring that all machine systems are frequently inspected and always well maintained.

• Be cautious when smoking. An open flame, a lighted cigarette, etc., should not be permitted around any vehicle, especially during fuelling operations or when the fuel system is open to the atmosphere or when servicing batteries.

• Ensure that any hand held fire extinguishers are charged and in working order. Fire extinguishers require routine care. Follow the manufacturer’s instructions for inspection and maintenance shown on the label of the fire extinguisher and in the extinguisher manufacturer's manual.

• Ensure that any pressurized water systems on the machine (if applicable) are charged and in working order. Refer to PRESSURIZED WATER SYSTEM MAINTENANCE in SECTION 3.

• Ensure that you have the proper fire extinguishers on site. Most fires involving mobile forestry equipment will be Class A or B. Dry chemical extinguishers should be rated ABC and pressurized water extinguishers should be rated A. Class A fires involve ordinary combustibles such as wood, cloth, paper, rubber and many plastics, Class B fires occur with flammable liquids such as diesel fuel, oil and grease and Class C fires apply to energized electrical equipment.

• Make sure the nozzle of any hand held extinguisher and pressurized water system available on the machine and at the work site fits within the fire extinguisher access holes in the doors of the machine.

• AFTER transporting (trucking) a machine from one job site to the next, open all doors and access panels and blow off any debris that may have repositioned itself onto the engine and exhaust parts due to wind turbulence caused by the journey.

• Ensure that your fire detection system* is in working order. Refer to FIRE DETECTION SYSTEM in SECTION 2.

• Before starting repair work, such as welding, the surrounding area should be cleaned and a fire extinguisher should be close by.

• Store rags and other combustible materials in a safe, fireproof location.

• Ensure that your fire suppression system** is charged and in working order. Refer to FIRE SUPPRESSION SYSTEM in SECTION 2.

• Do not use the machine on top of or to push piles of burning timber. A machine fire will most probably result.

• Ensure that you are familiar with the recommended procedures for fire contained in the emergency action plan of your company.

• Ensure that you follow all national, state/provincial and local regulations dealing with fire fighting in effect in your specific geographic region. Regulations will vary from region to region but most will usually require that:

NOTICE Equipment fires adversely effect your ability to log, may increase your insurance premiums dramatically or prevent you from obtaining insurance coverage at all.

• Workers assigned to fire fighting duties must be physically capable of performing them safely and effectively.

• Workers designated to use fire fighting equipment as part of an emergency action plan must receive full and proper training from a qualified instructor.

1.27

Safety

Tigercat 720G/724G/726G Feller Buncher

• Whenever portable fire extinguishers are provided for use in the workplace, training must be provided to familiarize workers with the general principles of fire extinguisher use and the hazards involved with fire fighting.

6. If possible a dry chemical fire extinguisher or fire suppression system** should be used first to fight a machine fire. Then immediately afterwards use the pressurized water hose supplied with the machine (if applicable) or a pressurized water extinguisher (if available). A fire suppressed by dry chemical may re-ignite from the heat retained by any debris or hot machine components in the area. The water will cool the area, reducing the chances of re-ignition.

• Training must be provided upon initial employment and at least annually thereafter.

• After you have received the training as outlined above, you must know how to use the fire extinguisher, the pressurized water system (if applicable) and the fire suppression system** on your machine. There is not enough time available to read instructions during a fire emergency.

• Use the PASS method. This is the most effective use of a fire extinguisher.

• Pull the pin at the top of the extinguisher that keeps the handle from being pressed. Break the plastic seal as the pin is pulled.

• All information necessary for you to immediately contact all sources of help (local fire department, etc) in the event of a fire emergency must be recorded and readily available at all times.

• Aim the nozzle at the base of the fire. Do not aim the nozzle at the flames. In order to put out the fire, you must extinguish the fuel, not the flames. Hose nozzles are often clipped to the extinguisher body. Release the hose before taking aim.

WHAT TO DO WHEN A MACHINE FIRE OCCURS

• Squeeze the handle to release the pressurized extinguishing agent. The handle can be released at any time to stop the discharge.

If operating the machine when a fire occurs: 1. Lower all working attachments to the ground.

2. Turn OFF the engine.

• Sweep from side to side at the base of the fire until the fire is completely out or the fire extinguisher is empty

3. Activate the fire suppression system**.

4. Radio or call for help. Be certain to report a fire immediately.

5. Exit the machine taking fire extinguisher and pressurized water system hose (if applicable) with you.

6. At all times ensure your own personal safety and the safety of anyone that may be in the area. Approach any fire with extreme caution. All fires can be very dangerous and life threatening.

7. Only if you can safely do so, turn OFF the battery disconnect switch.

Before deciding to fight the fire, be certain that: 1. The fire is small and not rapidly spreading.

2. There is always a clear, safe escape route to your back.

700068

Typical Fire Extinguisher Access Hole

3. You have received training in the use of the available fire extinguishing systems and are confident that you can operate them effectively.

• Place the nozzle of the fire extinguisher into the appropriate fire extinguisher access hole and discharge the extinguisher.

4. If in any doubt about whether or not to fight the fire – DON’T. Instead stand well clear of the fire and wait for help to arrive.

• Only if you can safely do so, open the access panels to the machine in the area of the fire.

5. Be aware that, hoses containing engine coolant, diesel fuel or hydraulic hoses could fail during a fire.

If this happens, hot coolant, fuel or oil could possibly be ignited by the fire.

1.28

• Failing all attempts to access the machine compartment, discharge the extinguisher through the mesh or any available openings on the machine.

Tigercat 720G/724G/726G Feller Buncher

Safety

• Ensure the machine and all components have cooled down sufficiently after a fire to prevent re-ignition from occurring.

• Remain with the machine until help arrives.

WHAT TO DO AFTER A MACHINE FIRE HAS OCCURRED Before returning the machine to work: 1. Ensure the cause of the fire is determined and all appropriate repairs are completed.

• In areas of the machine that remained cool and dry during the fire, the dry chemical will stay in powder form. Be certain to clean these areas immediately to prevent any settled residual powder from coming into contact with moisture whether through direct contact or humidity in the air. Remove the powder residue by blowing off with air, sweeping, dusting or vacuuming using a HEPA filter capable of trapping the small dry chemical particles. Then wipe all surfaces with a damp cloth.

• In areas exposed to moisture, the dry chemical powder will combine with water to form a paste that is mildly acidic.

2. Ensure the fire detection system* or the fire suppression system** is properly serviced and in working order (if applicable).

NOTE: All surfaces covered by this dry chemical paste including electrical contacts are vulnerable to corrosive attack.

3. Replace or recharge all extinguishers used in fighting the fire.

To neutralize the acidic paste on large surfaces, spray or wash these areas with a mixture of 3 parts hot water to 1 part baking soda. Allow this mixture to stand for several minutes before rinsing with warm water. Wash the area with a mild soap and water solution. Rinse thoroughly with water. Blow-dry to remove all residual water. Cleaning of electrical contacts should be done using an electrical contact cleaner that has no flash or fire point and is noncorrosive and non-conductive such as CRC Contact Cleaner 2000.

• Notify your equipment dealer and/or Tigercat Industries Inc. by completing an incident report, Tigercat form number 5101. *NOTE: Fire detection systems are offered by Tigercat as an optional installation on some Tigercat product lines. Please disregard any references made to fire detection systems if not installed on your machine. **NOTE: Dry chemical fire suppression systems are offered by Tigercat as an optional installation on some Tigercat product lines. Please disregard any references made to fire suppression systems if not installed on your machine.

DRY CHEMICAL CLEANUP PROCEDURES Both ABC dry chemical fire extinguishers and fire suppression systems discharge a chemical powder to extinguish the fire. The chemical makeup and the small particle size of the powder as well as the force of the discharge all contribute to the fire fighting capability.

These same characteristics also permit the powder to penetrate into and fully cover all components in the vicinity of the discharge.

The following are recommendations for the cleanup and neutralizing of areas exposed to dry chemical powder: NOTE: Workers performing this work should wear protective clothing, safety goggles and a fine particle dust mask to minimize their personal exposure to the dry chemical powder.

• Ensure that all electrical systems have been completely de-energized prior to any cleanup.

1.29

• In areas exposed to heat during the fire, the dry chemical powder will melt forming a coating that cakes or crusts on all surfaces. To break down the caked dry chemical, spray or wash these areas with a 50/50 mixture of hot water and isopropyl alcohol.

Allow this mixture to stand in place for several minutes. The caked dry chemical when exposed to moisture is also mildly acidic. Therefore when the break down procedure has been completed, follow this immediately with the neutralizing procedure as described in step 2.

Safety

SAFETY LABELS

Tigercat 720G/724G/726G Feller Buncher USE SEAT BELT

All labels must be periodically cleaned and inspected to ensure legibility is maintained. Replace any label that becomes illegible, damaged or removed.

READ OPERATOR'S MANUAL

The seat belt supplied with this seat must be used at all times when operating this machine.

Always read the operator’s manual before operating the machine. Pay close attention to WARNINGS and HAZARD identifications.

Study all the safety messages in this manual and on the labels on the machine carefully.

OPERATOR'S MANUAL LOCATION

This label indicates the storage location of the operator's manual.

1.30

Tigercat 720G/724G/726G Feller Buncher NO RIDERS

Do not carry passengers either in the cab or anywhere else on the machine. The vehicle seating accommodation is for one operator only. Persons riding on the outside of the machine are subject to hazards such as falling off the machine, crush hazards, thrown object hazards and many other hazards which COULD RESULT IN DEATH OR SERIOUS INJURY.

Safety REMOVE IGNITION KEY BEFORE SERVICING THE MACHINE!

Prior to performing any service work or maintenance on the machine, turn OFF the engine, remove the ignition key and store it in a safe place.

If any person attempts to climb onto the machine during operation, STOP THE MACHINE IMMEDIATELY. DO NOT operate the machine until other personnel are a safe distance away from the machine.

1.31

Safety

Tigercat 720G/724G/726G Feller Buncher

EMERGENCY EXIT, CAB, RIGHT-HAND SIDE DOOR

This label alerts the operator that, in the event of an emergency, this door can be used as an emergency exit.

Ensure all exit doors and exit hatch are functioning properly at all times.

Refer to EMERGENCY EXITS in SECTION 3.

EMERGENCY EXIT, HAND TIGHTEN ONLY

This label indicates that the escape hatch can also be used as an emergency exit.

The label also indicates that the escape hatch knobs should be hand tightened only to allow for easy exit.

Ensure all exit locations are functioning properly.

Refer to EMERGENCY EXITS in SECTION 3.

1.32

Tigercat 720G/724G/726G Feller Buncher

Safety

KEEP BACK

This label warns personnel to KEEP BACK 150 m (500 ft) from the machine due to flying projectile hazard.

Danger exists most prominently to the front and rear of the mulching head and around the felling head.

When approaching an operating machine on foot, stay at least 150 m (500 ft) away until the operator recognizes your presence. Make sure that all equipment has been shut down before advancing to the machine.

1.33

Safety

Tigercat 720G/724G/726G Feller Buncher

CRUSH HAZARD

CRUSH HAZARD

This label warns of the crush zone in the center joint area. This can occur when the machine steering is used.

DO NOT WORK IN THIS AREA UNTIL THE ARTICULATION LOCK BAR IS INSTALLED!

This label warns of the CRUSH HAZARD caused by the boom when it is not properly supported.

Never work under or near an unsupported boom or attachment. Contact with a falling boom COULD RESULT IN DEATH OR SERIOUS INJURY!

Before working in the center joint area, INSTALL THE ARTICULATION LOCK BAR between the chassis and center joint to prevent accidental articulation which could result in death or serious injury.

Refer to ARTICULATION LOCK BAR in SECTION 3 for complete instructions.

Always lower the boom to the ground so that the weight of the boom and attachment is resting on the ground.

Properly support and brace boom and shut off engine before performing service work.

1.34

Tigercat 720G/724G/726G Feller Buncher

Safety

CUTTING HAZARD

ENTANGLEMENT HAZARD

36779BUNI R0

This label informs you of the CUTTING HAZARDS of the cooling fan blade when the engine is running.

This label warns of an ENTANGLEMENT HAZARD (rotating parts) zone.

KEEP CLEAR of cutting hazards caused by rotating components.

DO NOT PLACE HANDS OR FINGERS IN THIS AREA. Rotating parts such as pulleys, belts and drives can cause entanglement of body parts resulting in serious injury.

DO NOT PLACE HANDS OR FINGERS IN THIS AREA. Rotating parts such as cooling fan blades can cause entanglement of body parts resulting in serious injury.

KEEP HANDS AND FINGERS CLEAR OF ROTATING FAN BLADES! Before performing any service work on these parts or in this area, turn OFF the engine and wait for rotating parts to come to a complete stop.

KEEP HANDS AND FINGERS CLEAR OF ROTATING BELT, DRIVE OR PULLEY! Before performing any service work on these parts or in this area, turn OFF the engine and wait for rotating parts to come to a complete stop.

1.35

Safety

Tigercat 720G/724G/726G Feller Buncher

EXPLOSIVE RELEASE OF HOT COOLING SYSTEM PRESSURIZED FLUID

EXPLOSION HAZARD

WARNING • EXPLOSION HAZARD. • DO NOT USE ETHER. • ENGINE EQUIPPED WITH HEATER STARTING AID. • USE OF ETHER COULD RESULT IN DEATH OR SERIOUS INJURY. 36782BENG R0

This label warns of an EXPLOSION HAZARD. The engine is equipped with a heater starting aid, DO NOT USE ETHER to assist in starting the engine.

USING ETHER COULD CAUSE AN EXPLOSION WHICH COULD RESULT IN DEATH OR SERIOUS INJURY. 33952AUNI R0

This label warns of a PRESSURE AND FLUID SPRAY HAZARD when the coolant in the radiator is hot.

DO NOT LOOSEN CAP UNTIL COOL. Explosive release of fluids from pressurized cooling system can cause serious burns.

Turn OFF the engine. Only remove coolant filler cap when cool enough to touch with bare hands. Slowly loosen cap to first stop to relieve pressure before removing completely.

1.36

Tigercat 720G/724G/726G Feller Buncher

Safety

FLUID SPRAY HAZARD

STORED ENERGY HAZARD

WARNING

This label warns of a FLUID SPRAY HAZARD. The machine is equipped with a pressurized water system. A water tank is incorporated into the rear bumper and is pressurized to 4 bar (60 psi).

• STORED ENERGY HAZARD

Contact with fluid under pressure may cause injury.

• DO NOT SERVICE THE ACCUMULATOR BEFORE RELEASING PRESSURE BY APPLYING BRAKES 25 TIMES WITH ENGINE OFF.

• THE ACCUMULATOR HAS 3000 PSI OF STORED ENERGY. SERVICING THE ACCUMLATOR BEFORE RELEASING PRESSURE COULD RESULT IN DEATH OR SERIOUS INJURY.

DO NOT SERVICE PRESSURIZED WATER SYSTEM until air pressure is fully released by depressing the water system spray nozzle.

Tank fill plug has a cross drilled vent hole. DO NOT replace with standard plug.

Refer to PRESSURIZED WATER SYSTEM MAINTENANCE in SECTION 3.

39945BENG R0

This label warns of a STORED ENERGY HAZARD. The machine is equipped with an accumulator (located in the front chassis). The accumulator has stored energy in the form of hydraulic pressure. Servicing the accumulator or any hydraulic components before releasing pressure could result in death or serious injury.

DO NOT SERVICE ACCUMULATOR OR ANY HYDRAULIC COMPONENTS BEFORE RELEASING PRESSURE. Refer to RELEASE PILOT SYSTEM PRESSURE in THIS SECTION.

1.37

Safety

Tigercat 720G/724G/726G Feller Buncher

FIRE PREVENTION!

CHECK DAILY

This label advises operator's of the following: READ UNDERSTAND AND FOLLOW THE FIRE PREVENTION GUIDELINES IN THIS MANUAL. These guidelines provide all the necessary action required to preventing fires on this machine. DO NOT OPERATE THIS MACHINE until you have read these instructions and have performed any necessary maintenance required that will prevent the potential of a fire from starting on this machine.

In addition to the FIRE PREVENTION label, this label is a reminder to check the machine daily for the possibility of debris build-up, leaks, damaged wires and hoses and take the necessary action required to clean up any debris accumulation, repair any leaks, damaged wires or hoses.

The label also advises to check and ensure that all fire fighting devices are in good working order.

FIRE EXTINGUISHER ACCESS HOLE

It is also important to note that fire prevention inspections and maintenance MUST BE PERFORMED FREQUENTLY (several times per day). A clean combustible free machine as well as frequent inspections of the exhaust components, hydraulic hoses and electrical cables and performing any necessary repairs immediately will help prevent fires.

Maintain a CHARGED fire extinguisher on the machine at all times, know where it is and KNOW HOW TO USE IT! This label indicates the location of each FIRE EXTINGUISHER ACCESS HOLE. The label is installed on each fire extinguisher hole on the engine hood.

1.38

Tigercat 720G/724G/726G Feller Buncher

Safety

NOTICE LABELS The following notice labels must be periodically cleaned and inspected to ensure legibility is maintained. Replace any label that becomes illegible, damaged or is removed.

ENGINE COOLANT SHUT-OFF VALVE (MACHINES EQUIPPED WITH ENGINE COOLANT HEATER)

ENGINE IDLE (APPLICABLE TO TIER 4F MACHINES ONLY)

This label informs operators that damage to the engine coolant heater pump may result if the engine coolant heater is operated with the engine coolant shut-off valve closed.

This label informs operators that damage to the emission control system will result when the engine has idled longer than one hour.

1.39

Safety

Tigercat 720G/724G/726G Feller Buncher

1.40

USING HIGH-SPEED DISC SAWS SAFELY DANGER This information is intended to encourage logging organizations and operators to develop and practice additional rules to suit particular terrain conditions and job requirements. It is also intended to assist towards a quicker understanding of how and why things can happen when a high speed disc saw is in use; and hence to assist in development of safe operating practices.

The following information is in addition to any safety instructions or recommended safe operating practices that may already be in circulation.

DANGER

CONTENTS – APPENDIX TO SECTION 1 C

COMMENTS AND INSTRUCTIONS..........................................................................................................................A.7 ASSESSING THE POTENTIAL DANGERS ON THE JOB SITE..........................................................................A.7 DIRECTION OF THROW.........................................................................................................................................A.7 HIGH ANGLE WRIST ROTATION ABILITY............................................................................................................A.8 RECOGNIZING THE DANGERS............................................................................................................................A.7 REGULAR MAINTENANCE....................................................................................................................................A.7 SAFE OPERATING AREAS.....................................................................................................................................A.7 THROW DISTANCE.................................................................................................................................................A.7 THROWING LONG WOOD PIECES....................................................................................................................A.10

D

DANGERS....................................................................................................................................................................A.3

F

FOREWORD................................................................................................................................................................A.2 BE AWARE OF THE HAZARDS..............................................................................................................................A.3 OTHER INSTRUCTIONS.........................................................................................................................................A.3 SAFE PRACTICES...................................................................................................................................................A.3 SEVERAL TYPES OF HEADS INVOLVED............................................................................................................A.2 STORED ENERGY...................................................................................................................................................A.3

H

HOUSING TYPES.......................................................................................................................................................A.4 HOUSING WITH ADDITIONAL OPENING.............................................................................................................A.6 HOUSING WITH LONGER INGOING SNOUT......................................................................................................A.5 HOUSING WITH NO SNOUTS...............................................................................................................................A.5 HOUSING WITH SNOUTS......................................................................................................................................A.4

S

SAW HEAD DO NOT'S..............................................................................................................................................A.14

T

TYPE OF HOUSING MAKES A DIFFERENCE.........................................................................................................A.4

5211A • R5-1116

Using High-Speed Disc Saws Safely

Tigercat

FOREWORD SEVERAL TYPES OF HEADS INVOLVED

SAW25A

Wheel Feller Buncher– Broadside Saw Contact with a Log Could Produce a Throw

SAW24

Track Feller Buncher – Sudden Machine Movement May Cause and Unexpected Throw at the Cab

Tigercat wheel feller bunchers and track feller bunchers can be supplied with several optional makes and models of high speed disc saw tree felling heads. Because each head has unique characteristics, advantages and disadvantages, they are chosen based on the specific types of work they were designed to complete.

A.2

Tigercat

Using High-Speed Disc Saws Safely

STORED ENERGY

OTHER INSTRUCTIONS

The saw blade stores energy from the hydraulic motor between tree cuts so it can supply up to 1000 hp during a one second tree cut. However, this rotational energy, if misapplied, can result in wood materials or other objects being thrown strongly enough to cause damage and injure people.

All instructions contained in the operator and service manuals for use and maintenance of Tigercat disc saw heads and other disc saw heads installed on Tigercat machines must be read, understood and followed.

BE AWARE OF THE HAZARDS

Here are the most common means by which a rotating disc saw can cause harm by throwing:

DANGERS

Users of machines with disc saw felling heads must be aware of all safety precautions. In this section, some previously unknown, unexpected safety hazards are illustrated and explained. These should be studied before use of the machine and then reviewed again after use has begun.

• The normal throwing of chips from the cut.

• Soil particles are thrown from the ground.

• Loose chunks of wood encountered or produced are tossed by the exposed blade.

• Sticks and debris falling onto the blade or sliding across the blade are struck by the teeth and thrown.

SAFE PRACTICES It is understood and expected that logging organizations and operators must develop and practice additional rules to suit particular conditions of terrain, trees, soil and job requirements. The information provided in this section is intended to assist towards a quicker understanding of how and why things can happen when a high speed disc saw is in use and to assist in the development of safe operating practices.

• Metal pieces from the blade or from encountered objects are thrown.

• Wood pieces enter the saw housing and are expelled by the blade.

• In very peculiar cases the saw can throw long lengths of wood as spears.

It should not be assumed that all possible dangers have been discovered and described in this section.

A.3

Using High-Speed Disc Saws Safely

Tigercat

HOUSING TYPES TYPE OF HOUSING MAKES A DIFFERENCE Since the configuration of the saw housing can affect the safety of its use, we need to identify some particular types of housing shapes and guarding being used.

HOUSING WITH SNOUTS A

B

SAW13

A Throw Angle

SAW17

Saw Housing with Snouts B Snouts

This commonly used saw housing is designed with a continuous skirt around the saw except at a mouth opening where the trees are cut and taken. The skirt extends below the saw enough to intercept tangential throws. There are snouts on both sides of the mouth to prevent the saw teeth from making contact with the wood if pushed against the side of a felled tree or log.

A.4

Tigercat

Using High-Speed Disc Saws Safely

HOUSING WITH NO SNOUTS A

B

SAW14

SAW15

Saw Housing with No Snouts

A Throw Angle

B Housing Plan with No Snouts

This housing has no blade-guarding snouts. This allows the saw blade teeth to protrude ahead of the housing.

This may be preferred for dexterity in tree getting.

HOUSING WITH LONGER INGOING SNOUT A

C

B

B

SAW12

A Throw Angle B Long Snout

SAW18

Saw Housing with a Longer Snout on the housing Ingoing Side C Short Snout

This housing has a much longer snout on the ingoing side of the mouth, i.e., where the teeth of the rotating blade are entering the housing. The broad side of a log, if nudged, will not contact the saw teeth and more thrown material will be intercepted by the extra length of the snout.

A.5

Using High-Speed Disc Saws Safely

Tigercat

HOUSING WITH ADDITIONAL OPENING

B

C

A

A

E

D A

SAW19

A Throw Angle B Rear C Front

A

SAW20

A SAW26

Saw Housing with Additional Opening

D Opening in Housing Skirt E Guard for Chip Escape Port in Housing

This housing incorporates an additional opening (chip escape port) in the housing skirt to allow for the discharge of wood chips produced by the saw teeth in the cut and being taken into the housing.

A guard is available to close the chip escape port so tangential travel of chips and other material is intercepted as soon as it leaves the housing.

The various housing types show a shaded area where normally tangentially thrown material can escape from the saw housing. Deflected and dropped chips escaping below the bottom edge of the housing skirt are not included. The areas and angles are not exact but do show that one head can be different from another.

IMPORTANT! The operator must be familiar with the blade rotation direction, the effectiveness of any snout on the in-going side and which direction a chip escape port allows material to discharge.

A.6

Tigercat

Using High-Speed Disc Saws Safely

COMMENTS AND INSTRUCTIONS

ASSESSING THE POTENTIAL DANGERS ON THE JOB SITE

RECOGNIZING THE DANGERS

The extent of danger from high speed disc saws on a logging operation must be assessed on the job site, depending on how much other work activity is in the area and whether the operator can do their job of cutting and bunching with good control of throw patterns. Danger is greater if the saw is equipped with detachable, or fragile, or brittle teeth, or if the site contains stones or abandoned metal.

While it may appear the illustrated danger areas (throw angle) can be visually recognized on the job by observing how far chips are discharged during a cut, this only holds true for chips and other light weight materials.

Metal parts and wooden spears can be thrown to surprisingly greater distances. Even distant personnel on the ground, in other vehicles, or in buildings are at risk if the throw is in their direction.

REGULAR MAINTENANCE

DIRECTION OF THROW

Poor saw maintenance increases possible dangers.

Some designs, that might allow fasteners to wear thin or fatigue and suddenly break, need thorough timely replacement procedures. It is important the warning signs of missing saw tooth parts or the sounds of striking rocks be heeded and the operation adjusted to avoid danger.

The direction of possible tangential throw for metal parts and stones is dependent on the housing configuration and might be expected to be the same as observed for the chips. However, these throws can occur at any time the saw is running, in whichever direction the throw angle is pointed by boom geometry, and not just when a cut is being made.

THROW DISTANCE The throw distance for metal pieces and stones, can be many times the distance shown by the pattern for chips.

More testing and data collection is needed to pin down a 'safe distance' but if someone or something is in a place that can be seen by the operator and in the throw direction of a high speed disc saw, then the operation is not safe regardless of the distance.

SAFE OPERATING AREAS These saw heads must not be used in areas where the logging operation does not have control over the presence and movement of people. In particular, clearing of vegetation in urban and populated areas should not be done with a Tigercat manufactured or supplied high speed disc saw. High speed disc saw heads are intended for high productivity wood harvesting in areas remote from normal habitation. The possible presence of people and property within throw range and the likelihood of encountering scrap metal, wire fencing, steel posts and concrete must be respected.

A.7

Using High-Speed Disc Saws Safely

Tigercat

HIGH ANGLE WRIST ROTATION ABILITY

B

A

C

SAW21A

A Short Snouts B Chip Escape Port Discharge Path

C Chip Escape Port

The limits of the boom, stick, tilt, wrist, upper leveling and any other freedoms, must not permit a direct throw at the operators cab during normal operation, on felling machines equipped with a high-speed disc saw head with high-angle wrist rotation ability.

A

B

SAW23

B C

SAW23

A Clockwise (CW) Blade Saw Rotation B Discharge Path

C Counterclockwise (CCW) Saw Blade Rotation

The discharge path exists in both the clockwise (CW) and counterclockwise (CCW) blade rotation (relative to the machine).

A.8

Tigercat

Using High-Speed Disc Saws Safely

B

A

SAW21A

Disc Saw Felling Head with High Angle Wrist Rotation Capability

A Long Snout on Outgoing Side

B Discharge Paths

It is essential that the housing have a long snout on the ingoing side and, if equipped with a chip escape port, it should be guarded.

With these high mechanical freedom arrangements, there is a chance that an unforeseeable operator misadventure or equipment failure could result in an accidental direct or deflected throw at the operators cab. The cab should be capable of resisting such accidental and ricochet throws. The velocity energy of metal or rock pieces leaving the blade is extremely high. The operators cab cannot be considered safe to routinely operate in the chip throw area, even if it has been constructed to prevent penetration by accidentally thrown objects.

A.9

Using High-Speed Disc Saws Safely

Tigercat

THROWING LONG WOOD PIECES

A

Dangers from throws of long wood pieces are illustrated throughout this portion of the document.

Tests and experience have shown that, when a high speed rotating saw is applied to a loose piece of wood, the wood is either blown or pushed away, without a throw.

C

If the wood is held firmly in all directions, and the saw is advanced into the wood at any feed speed, cutting will take place. If the wood is only restrained against the saw radially, but not restrained tangentially, then the wood will be both partly cut and partly moved tangentially.

If the piece of wood is backed-up by a solid slippery surface, the feed in is very fast, and the piece of wood is long enough, the tangential movement is a dangerous spear-like throw.

B

SAW2

A Slab B Throw Direction C Radial Feed In

The slab can be thrown from the side of a log. Although the saw housing has skis, there are no snouts and the blade teeth protrude ahead of the housing.

A

B

C

E

F

SAW7A

D A

SAW10

A Slab SAW8A

A slab, which could later be thrown, might occur when there is not enough room in the head to completely cut the last tree.

A B C D E F

Throw Engagement– Side View

Felling Head Moving Radially Into the Slab/Log Slab Log Felling Head Moving Radially Into the Small Log/Pile Small Log Log Pile

A slab, still partly attached to a well backed-up tree bole and wet with sap, makes an ideally bad throw situation which could unintentionally occur in woods work.

If the side of a log can contact the saw blade, the throw engagement distance can be long.

A.10

Tigercat

Using High-Speed Disc Saws Safely A

B

A

B SAW7

SAW6

C

Felling Head with Snouts

A Thrown Engagement Distance B Uncut tree or stump backup C Radial Feed In

A

A head with snouts does not allow a long throw contact.

Although tests show that a short contact length on a long log or tree butt does not result in a spear like throw, this action should nevertheless be avoided because abnormally large chips are sometimes produced and thrown.

C SAW8

Throw Engagement– Top View

A Thrown Engagement Distance B Felling Head Moving Into the Slab/Log C Felling Head Moving Into the Small Log/Pile

A housing without snouts can create a long throw engagement distance which, in turn, can cause a dangerous spear throw.

B

A SAW3

C

How a Log Can Be Thrown Like a Spear

A Felling Head Moving Into the Small Log/Pile B Small Log C Saw Housing Without Snouts

A small log in a pile of other logs might also be propelled out with enough length of continued contact to reach near saw tip speed.

A.11

Using High-Speed Disc Saws Safely

Tigercat SAW BLADE THROW GAP A

A

SAW122

SAW11

A Saw Throw Gap

A Felling Head Moving Into Stump (Feed Speed)

Blocks of wood can be tossed in any direction when improvising with a disc saw to trim over-size stumps. A long snout and a slow feed speed lessen danger during stump trimming. A similar danger of throw may exist when clearing small brush with multiple pass cuts.

Saw blades have gaps between adjacent teeth and holders to permit installation and removal of the teeth and to provide spaces to accumulate chips in the cut.

Fallen sticks and debris, or sticks and debris sliding across the saw blade, can enter these gaps when the blade is rotating and may be struck by the teeth. This will cause the sticks and debris to be tossed or thrown.

Larger gaps and lower rotation speeds increase these dangers.

A.12

Tigercat

Using High-Speed Disc Saws Safely

SAW HOUSING ENTRANCE AND EXIT SPACE

A

B

SAW22 SAW22A SAW22B

A Ingoing Opening of the Saw Blade Housing

Saw Bade Entrance and Exit Space

B Outgoing Opening of the Saw Blade Housing

To avoid the ingestion of materials into the housing space above the disc (and later ejection) the ingoing entrance for the saw rim of teeth is kept as small as practical. It is important that this high wear area be maintained at its original size and shape.

The outgoing opening is large enough to allow the housing to clean itself and allows most things inside to be thrown out. Its throw direction and angle must be respected. A long snout on the ingoing side reduces this danger.

A.13

Using High-Speed Disc Saws Safely

Tigercat

This information is offered by Tigercat as part of interim action to make saw heads safer. It is based on what has recently been reported from the field and on tests conducted on proving grounds.

• Do not assume visitors and other workers are aware of disc saw dangers.

• Do not assume the operator will spare you, a visitor, from danger.

Tigercat continues to design and test tree felling machinery towards achieving greater safety in the woods. Tigercat would be thankful for written reports describing any unsafe happenings, including near misses, in the use of felling heads and their carriers.

• Do not select and operate heads that throw rearward.

• Do not select and operate heads with unnecessarily wide throw angles.

THE FOLLOWING ARE SOME SAW HEAD DO NOT'S THAT APPLY PARTICULARLY TO THROW PREVENTION:

• Do not neglect to read and follow all instructions provided by the saw and head manufacturers.

• Do not point the throw of a disc saw head in a direction towards people, vehicles or buildings at any visible distance.

• Do not operate in a way that throws chips in a direct line at the machine cab.

• Do not push hard with the saw against anything except a standing tree to be cut.

• Do not mix new sharp teeth with old dull teeth on the same saw.

• Do not change the blade rotation from its designed direction in the head.

• Do not over speed the blade rpm.

• Do not remove or shorten snouts provided by the head manufacturer or installer.

• Do not neglect tooth fastening inspection, maintenance and replacement.

• Do not neglect to repair worn or damaged saw housings.

• Do not neglect to replace any covers removed for service or clean out.

• Do not count on skis to give the throw protection that snouts do.

• Do not nudge loose short pieces with the front of any type of head.

• Do not nudge anything, even long logs, with the front of a head which has no snouts.

• Do not cut short small stalks when the blade speed is low.

• Do not operate a high speed disc saw in a populated area.

A.14

CONTROLS AND OPERATION...........................................................................................................................2

Tigercat 720G/724G/726G Feller Buncher SECTION 2 – CONTROLS AND OPERATION Read and understand the entire contents of this manual, and all manuals for any attachments or accessories associated with this machine, prior to operating or servicing this equipment.

CONTENTS – SECTION 2

ISSUE 4.0, JANUARY 2020

A

ACCUMULATING ARMS........................................................................................................................................... 2.11 AIR CONDITIONER-HEATER CONTROLS............................................................................................................ 2.18 AIR VENTS, CAB....................................................................................................................................................... 2.19 ALARM LIGHT........................................................................................................................................................... 2.15 AUDIO SYSTEM........................................................................................................................................................ 2.21 AUXILIARY POWER SUPPLY– 12 VOLT................................................................................................................. 2.17

B

BATTERY BOOSTING.............................................................................................................................................. 2.90 BATTERY DISCONNECT SWITCH......................................................................................................................... 2.23 BLUETOOTH FUNCTIONS...................................................................................................................................... 2.21 BOOM LIFT................................................................................................................................................................ 2.11 BRAKES..................................................................................................................................................................... 2.13

C

CLAMP ARMS............................................................................................................................................................ 2.13 COLD WEATHER STARTING................................................................................................................................... 2.98 COMPUTER ENGINE MENU....................................................................................................................................................... 2.37 ENGINE FUNCTIONS........................................................................................................................................ 2.38 FUEL INFORMATION FUNCTIONS.................................................................................................................. 2.40 ADJUSTMENT MENU............................................................................................................................................ 2.41 CREEP MODE..................................................................................................................................................... 2.44 FAN CLEAN DURATION.................................................................................................................................... 2.43 FAN CLEAN FREQUENCY................................................................................................................................ 2.43 GENERAL SETTINGS........................................................................................................................................ 2.41 HYDRAULIC OIL GRADE SELECTION............................................................................................................ 2.42 INFORMATION MENU........................................................................................................................................... 2.44 CUTTER FUNCTIONS........................................................................................................................................ 2.46 UNITS OF MEASURE......................................................................................................................................... 2.47 MAIN MENU............................................................................................................................................................ 2.48 INFO MENU......................................................................................................................................................... 2.54 MEASURE MENU............................................................................................................................................... 2.49 PREFERENCES MENU...................................................................................................................................... 2.50 MAIN SCREEN....................................................................................................................................................... 2.36 MESSAGES............................................................................................................................................................ 2.56 MESSAGES– ALERT............................................................................................................................................. 2.75 DIESEL EXHAUST FLUID LEVEL..................................................................................................................... 2.88 DRIVE CHARGE FILTER BYPASS................................................................................................................... 2.76 ENGINE AIR INTAKE FILTER RESTRICTED................................................................................................... 2.76 ENGINE COOLANT TEMPERATURE HIGH.................................................................................................... 2.79 ENGINE FAULT CODE MESSAGES................................................................................................................. 2.78 ENGINE IDLE AUTOMATICALLY INCREASED............................................................................................... 2.79 ENGINE TORQUE DERATE ACTIVE................................................................................................................ 2.79 ENGINE VOLTAGE HIGH................................................................................................................................... 2.78 ENGINE VOLTAGE LOW.................................................................................................................................... 2.78 FIRE DETECTION SYSTEM MALFUNCTION................................................................................................. 2.77 FUEL LEVEL LOW.............................................................................................................................................. 2.80 HARDWARE FAILURE– CURRENT OUTPUT.................................................................................................. 2.82 HARDWARE FAILURE– DIGITAL INPUT.......................................................................................................... 2.82

Controls and Operation

Tigercat 720G/724G/726G Feller Buncher

HARDWARE FAILURE– DIGITAL OUTPUT...................................................................................................... 2.82 HARDWARE FAILURE– VOLTAGE INPUT....................................................................................................... 2.82 HARDWARE FAULt– MD3 (COMPUTER)......................................................................................................... 2.81 HARDWARE FAULt– XA2-A0............................................................................................................................. 2.81 HARDWARE FAULt– XA2-A1............................................................................................................................. 2.81 HYDRAULIC OIL FILTER RESTRICTED.......................................................................................................... 2.81 MACHINE VOLTAGE HIGH................................................................................................................................ 2.77 MACHINE VOLTAGE LOW................................................................................................................................. 2.77 MAIN FUEL FILTER CLOGGED........................................................................................................................ 2.77 MODULE HIGH SUPPLY VOLTAGE– ALERT................................................................................................... 2.84 MODULE HIGH TEMPERATURE– ALERT....................................................................................................... 2.83 MODULE LOW SUPPLY VOLTAGE– ALERT.................................................................................................... 2.85 PUMP DRIVE GEARBOX FILTER BYPASSED................................................................................................ 2.80 WATER IN FUEL................................................................................................................................................. 2.80 MESSAGES– CRITICAL........................................................................................................................................ 2.57 AFTERTREATMENT SYSTEM ENGINE IDLE TOO LONG............................................................................ 2.70 DIESEL EXHAUST FLUID QUALITY................................................................................................................. 2.68 ENGINE COOLANT LEVEL LOW...................................................................................................................... 2.62 ENGINE COOLANT TEMPERATURE HIGH.................................................................................................... 2.63 ENGINE COOLANT TEMPERATURE HIGH– ENGINE DERATE................................................................... 2.63 ENGINE FAULT CODE MESSAGES– CRITICAL............................................................................................. 2.60 ENGINE LOCKED OUT...................................................................................................................................... 2.69 ENGINE OIL PRESSURE LOW......................................................................................................................... 2.61 ENGINE OIL PRESSURE LOw– ENGINE DERATE......................................................................................... 2.61 ENGINE OIL TEMPERATURE HIGH................................................................................................................. 2.62 ENGINE STARTS REMAINING UNTIL ENGINE LOCKOUT........................................................................... 2.69 FIRE DETECTED................................................................................................................................................ 2.60 FUEL PRE-FILTER CLOGGED OR DISCONNECTED.................................................................................... 2.64 HARDWARE FAULt– ENGINE........................................................................................................................... 2.65 HARDWARE FAULt– MD3 (COMPUTER)......................................................................................................... 2.65 HARDWARE FAULt– XA2-A0............................................................................................................................. 2.65 HARDWARE FAULt– XA2-A1............................................................................................................................. 2.65 HYDRAULIC OIL LEVEL LOW........................................................................................................................... 2.58 HYDRAULIC OIL RETURN FILTERS BYPASSED................................................................................. 2.36, 2.59 HYDRAULIC OIL TEMPERATURE HIGH......................................................................................................... 2.58 MAIN FUEL FILTER CLOGGED– ENGINE DERATE....................................................................................... 2.64 PUMP DRIVE GEAR BOX TEMPERATURE HIGH.......................................................................................... 2.59 MESSAGES– ERROR............................................................................................................................................ 2.71 COMPUTER MODULE BLANK SCREEN......................................................................................................... 2.73 CURRENT OUTPUT ERROR (COUT).............................................................................................................. 2.73 DIGITAL INPUT ERROR (DIN)........................................................................................................................... 2.73 DIGITAL OUTPUT ERROR (DOUT).................................................................................................................. 2.73 MODULE NO CONTACT ERROR...................................................................................................................... 2.74 MODULE VREF ERROR.................................................................................................................................... 2.72 VOLTAGE INPUT ERROR (VIN)........................................................................................................................ 2.73 NETWORK.............................................................................................................................................................. 2.35 COMPUTER AND DISPLAY..................................................................................................................................... 2.15 COOLANT HEATER, ENGINE (OPTIONAL)........................................................................................................... 2.24 CUTTER SWITCH– (SAW)........................................................................................................................................ 2.16 D

DIAGNOSTICS CONNECTION, ENGINE............................................................................................................... 2.20 DRIVE CONTROL...................................................................................................................................................... 2.13

E

2.2

Tigercat 720G/724G/726G Feller Buncher

Controls and Operation

ECO MODE................................................................................................................................................................ 2.40 EMERGENCY EXIT/SKYLIGHT............................................................................................................................... 2.22 ENGINE COOLANT SHUT-OFF VALVE.............................................................................................................................. 2.19 DERATE SEQUENCE DEF QUALITY..................................................................................................................................................... 2.87 LOW DEF LEVEL................................................................................................................................................ 2.89 DIAGNOSTICS CONNECTION............................................................................................................................. 2.20 RESTARTING AFTER ENGINE RUNS OUT OF FUEL/FUEL FILTER REPLACED......................................... 2.99 SPEEDS.................................................................................................................................................................. 2.16 STARTING.............................................................................................................................................................. 2.97 STOPPING.............................................................................................................................................................. 2.99 ENGINE COOLANT SHUT-OFF VALVE.................................................................................................................. 2.24 F

FAN SWITCH (ENGINE COOLING)......................................................................................................................... 2.17 FILTERS CAB FRESH AIR.................................................................................................................................................... 2.20 RECIRCULATING AIR– A/C HEATER UNIT......................................................................................................... 2.20 FIRE DETECTION SYSTEM.................................................................................................................................... 2.25 COMPONENTS...................................................................................................................................................... 2.26 FIRE EXTINGUISHER.............................................................................................................................................. 2.23 FOOT PEDAL CONTROLS....................................................................................................................................... 2.13

G

GEAR SHIFT LEVER................................................................................................................................................ 2.14

H

HEAD TILT................................................................................................................................................................. 2.11 HEATER, ENGINE COOLANT (OPTIONAL)........................................................................................................... 2.24 HORN............................................................................................................................................................... 2.10, 2.12

I

IGNITION KEY SWITCH........................................................................................................................................... 2.17 INSTRUMENT PANEL............................................................................................................................................... 2.15 INTERLOCK RESET SWITCH................................................................................................................................. 2.15

J

JOYSTICK CONTROLS............................................................................................................................................ 2.10 LEFT........................................................................................................................................................................ 2.10 RIGHT..................................................................................................................................................................... 2.11

L

LIGHT– DOME........................................................................................................................................................... 2.22 LIGHTER– 24 VOLT................................................................................................................................................... 2.17

M

MACHINE PREPARATION..................................................................................................................................... 2.100 SYSTEM TEST AND WARM-UP......................................................................................................................... 2.100 MIRROR, REAR VIEW.............................................................................................................................................. 2.22

O

OPERATING MACHINE............................................................................................................................................ 2.92

P

PARKING BRAKE SWITCH...................................................................................................................................... 2.17 PICTOGRAMS............................................................................................................................................................. 2.5 PRESSURIZED WATER SYSTEM........................................................................................................................... 2.21 PRESTART CHECKS................................................................................................................................................ 2.92

R

REAR VIEW MIRROR............................................................................................................................................... 2.22 REFUELLING............................................................................................................................................................. 2.91 RESTARTING ENGINE THAT HAS RUN OUT OF FUEL OR WHEN A FUEL FILTER HAS BEEN REPLACED.....

2.99 2.3

Controls and Operation

Tigercat 720G/724G/726G Feller Buncher

S

SEAT– AIR RIDE........................................................................................................................................................ 2.32 ADJUSTMENTS..................................................................................................................................................... 2.32 PROBLEMS AND CORRECTIVE ACTION.......................................................................................................... 2.33 SEAT– STANDARD.................................................................................................................................................... 2.30 ADJUSTMENTS..................................................................................................................................................... 2.30 PROBLEMS AND CORRECTIVE ACTION.......................................................................................................... 2.31 SKYLIGHT/EMERGENCY EXIT............................................................................................................................... 2.22 STARTING ENGINE.................................................................................................................................................. 2.97 COLD WEATHER STARTING............................................................................................................................... 2.98 STEERING WHEEL (OPTIONAL)............................................................................................................................ 2.12 CONTROL PANEL– LEFT ARMREST................................................................................................................... 2.12 SWITCHES A/C ON/OFF SWITCH............................................................................................................................................ 2.18 AIR CONDITIONING KNOB.................................................................................................................................. 2.18 AIR SOURCE KNOB.............................................................................................................................................. 2.18 CUTTER (SAW)...................................................................................................................................................... 2.16 ENGINE SPEED..................................................................................................................................................... 2.16 FAN (ENGINE COOLING)..................................................................................................................................... 2.17 FAN SPEED KNOB................................................................................................................................................ 2.18 HEAT KNOB............................................................................................................................................................ 2.18 IGNITION KEY........................................................................................................................................................ 2.17 INTERLOCK RESET.............................................................................................................................................. 2.15 PARKING BRAKE................................................................................................................................................... 2.17 WORK LIGHTS....................................................................................................................................................... 2.17

T

TELEMATICS SYSTEM (OPTIONAL)...................................................................................................................... 2.29 TRAVEL SPEED CONTROL LEVER........................................................................................................................ 2.14

U

USB PORT COMPUTER............................................................................................................................................................ 2.20

W

WATER SYSTEM, PRESSURIZED.......................................................................................................................... 2.21

2.4

Tigercat 720G/724G/726G Feller Buncher

Controls and Operation

PICTOGRAM DESCRIPTIONS

= Boom DOWN

Diagrams in pictorial form are used to represent machine function operation. They are a simple universal language of symbols or pictograms that illustrate a function or component without the use of words.

= Boom UP

Examples of these pictograms are the turtle and the rabbit that are often used to describe speed such as SLOW = or FAST = .

= Boom Tilt, BACK

= 12V, Auxiliary Power Outlet

= Boom Tilt, FORWARD

= 24V, Power Outlet

= Brake

= Accumulator Arms, OPEN

= Brake Pedal

= Accumulator Arms, CLOSE

= Check, Visually

= Adjustment Menu

= Control Lever, Multiple Direction

= Air Conditioner ON

= Control Lever, One Direction = Control Lever, Two Direction

= Air Conditioner OFF

= Clamp Arms, CLOSE = Air Intake Pressure, BOOST = Clamp Arms, OPEN = Air Source, Fresh Air = Critical Message Symbol = Air Source, Recirculate = Cruise Control = Alert Message Symbol

= Creep mode or Speed Very Slow

= Battery CONNECT

= Defrost, Front Window

= Battery DISCONNECT

= Diesel Exhaust Fluid (DEF)

2.5

Controls and Operation

Tigercat 720G/724G/726G Feller Buncher = Engine Anti-stall OFF

= Differential Locks

= Engine Boost Pressure

= Differential Lock ON

= Engine Air Intake Pressure (Engine Air Intake Filter Restricted)

= Differential Lock OFF

= Engine Charge Air Temperature

= Disc Saw

= Engine Coolant Temperature

= Disc Saw Hours

= Engine Diagnostics

= Disc Saw, ON

= Engine ECO MODE (If applicable) = Disc Saw Pressure

= Engine Emission Filter

= Drive Mode = Engine Emission Filter OFF = Drive FORWARD

= Engine Emission System FAILURE

or

= Drive REVERSE

= Engine Emission System Temperature = Engine Menu

= Drive Motor Speed

= Engine Hours = Engine Oil Pressure

= Drive Pressure, FORWARD = Engine Oil Temperature = Drive Pressure, REVERSE = Engine – Percentage of Load = Engine Anti Stall = Engine RUN = Engine Anti-stall ON

2.6

Tigercat 720G/724G/726G Feller Buncher

Controls and Operation = Fuel Consumption Rate

= Engine Speed – RPM

= Fuel, Diesel = Engine START = Fuel Heater = Engine STOP = Fuel Information = Engine WAIT TO START = Fuel Reset and Trip Fuel Information = Engine WARM-UP

= Fuel – TEMPERATURE

= Engine Warning

AUTO

= Fuel – WATER IN FUEL

= Exhaust Temperature

= Horn

= Fan, Auto Reversing/Cleaning

= Hours ENGINE

= Fan, Full ON

= Hours – MACHINE

= Fan, Reverse/Clean

= Hydraulic Oil Case Drain

= Fan Speed = Hydraulic Oil Filter Bypass = Fan, Ventilation Blower = Hydraulic Oil Grade = Flow Adjustment = Hydraulic Oil Level = Feller Buncher = Hydraulic Oil Level LOW = Fluid Level High = Hydraulic Oil PRESSURE

= Fluid Level Low = Foot Pedal Control 2.7

Controls and Operation

Tigercat 720G/724G/726G Feller Buncher = Lights WORK

= Hydraulic Oil RETURN

= Machine

= Hydraulic Oil Tank

= Oil Cooler BYPASS

= Hydraulic Oil TEMPERATURE

= Operator

= Hydraulic Oil TEMPERATURE HIGH

= Hydraulic System Pressure LOAD SENSE

= Oscillation Lock

P

= Imperial/Metric Toggle Symbol

= Parking Brake = Pump Drive Gearbox Temperature

= Information Menu Icon

= See Computer Screen

= Information Message Symbol

= Serial Number

= Instrument Test

= Speed CREEP or VERY SLOW = Interlock System ON = Speed FAST or HIGH = Interlock System OFF

= Speed SLOW or LOW = Steer Right

= Joystick and Switches

= Steer Left

= Lights ENGINE SERVICE = Lights INTERIOR (Cab)

= Switch OFF

= Lights REAR

= Switch ON

2.8

Tigercat 720G/724G/726G Feller Buncher

Controls and Operation

= Telematics

= Volume, FULL

= Telematics, Connectivity

= Volume, EMPTY

= Telematics, Messages Sent/ Recorded

= Windshield Washer

= Telematics, Latitude

= Winch ON

= Telematics, Longitude = Winch Free Spool = Temperature = Winch Spool IN = Transmission = Winch Spool OUT

= Transmission Temperature (EHS)

= Travel Direction

= Travel FORWARD

= Travel REVERSE

= Travel Speed

= Vacuum = Ventilation Blower Fan

2.9

Controls and Operation

Tigercat 720G/724G/726G Feller Buncher

IMPORTANT! This manual is applicable to factory installed machine functions and controls. It does not take into account any changes or modifications made after shipment. Verify all functions before operating this machine.

JOYSTICK CONTROLS

JOYSTICK SWITCHES AND BUTTONS

JOYSTICK – LEFT

HORN • Push to sound warning horn.

DIFFERENTIAL LOCK – FRONT • Pull and hold trigger to LOCK the FRONT differential and provide driving torque to BOTH front wheels.

A B

• Release trigger to disengage.

DIFFERENTIAL LOCK – REAR

C

• Pull and hold trigger to LOCK the REAR differential and provide driving torque to BOTH rear wheels.

• Release trigger to disengage.

IMPORTANT! Use differential locks sparingly for brief periods and ONLY when additional traction is required. DO NOT continuously drive the machine with differential locks turned on. Damage to the axles will result.

JOYSTICK CLAMP ARM BUTTONS (OPTIONAL) M726E-034

D

A Horn B Differential Lock-Front C Differential Lock-Rear

E

M726E-005

STEERING • Move the joystick to the RIGHT to turn the machine to the RIGHT. • Move the joystick to the LEFT to turn the machine to the LEFT. NOTE: Steering speed can be controlled by the amount the joystick is moved to the right or left. A small movement of the joystick turns the machine slowly. A large movement of the joystick turns the machine very rapidly.

D Clamp Arms OPEN E Clamp Arms CLOSE

• Push the left button to OPEN the clamp arms.

• Push the right button to CLOSE the clamp arms.

2.10

Tigercat 720G/724G/726G Feller Buncher JOYSTICK – RIGHT

Controls and Operation JOYSTICK SWITCHES AND BUTTONS ACCUMULATING ARMS OPEN

A

B

• Push to OPEN the accumulator arms.

ACCUMULATING ARMS CLOSE • Push to CLOSE the accumulator arms.

C

ACCUMULATING/CLAMP/SHEAR ARMS OPEN • Push to OPEN the accumulator and clamp/shear arms simultaneously.

M726E-005

A Accumulating Arms OPEN B Accumulating Arms CLOSE C Accumulating/Clamp/Shear Arms OPEN

BOOM LIFT • Move the joystick FORWARD to LOWER the boom.

• Move the joystick BACK to LIFT the boom.

ATTACHMENT TILT • Move the joystick to the RIGHT to tilt the attachment OUT. • Move the joystick to the LEFT to tilt the attachment IN.

2.11

Controls and Operation

STEERING WHEEL (OPTIONAL)

Tigercat 720G/724G/726G Feller Buncher CONTROL PANEL – LEFT ARMREST STEERING WHEEL OPTION

A

724G-071

A

B

C

724G-072

A Horn B Differential Lock-Front C Differential Lock-Rear

HORN A Steering Wheel

Steering speed can be controlled by turning the wheel either partially (for slower response) or Fully (for faster response): • Turn the steering wheel to the RIGHT to turn right.

• Turn the steering wheel to the LEFT to turn left.

• Push to sound warning horn DIFFERENTIAL LOCK – FRONT • Push to LOCK the FRONT differential and provide driving torque to BOTH front wheels.

DIFFERENTIAL LOCK – REAR • Push to LOCK the REAR differential and provide driving torque to BOTH rear wheels.

2.12

Tigercat 720G/724G/726G Feller Buncher

FOOT PEDAL CONTROLS

Controls and Operation LEFT FOOT CONTROL – CLAMP ARMS • Press the left foot pedal (A) to OPEN the clamp arms.

A

B

C

D

E

• Press the right foot pedal (B) to CLOSE the clamp arms.

CENTER FOOT CONTROL – BRAKES • Press the center foot pedal (C) to APPLY the axle brakes.

RIGHT FOOT CONTROL – DRIVE CONTROL • Press the right foot pedal (E) to drive FORWARD. • Press the left foot pedal (D) to drive in REVERSE. NOTE: The backup horn sounds when traveling in reverse.

726G-075

A B C D E

Clamp Arms Control – Press to Open Clamp Arms Control – Press to Close Brakes – Press to Apply Axle Brakes Drive Control – Reverse Drive Control – Forward

2.13

Controls and Operation

Tigercat 720G/724G/726G Feller Buncher

TRAVEL SPEED CONTROL LEVER

GEAR SHIFT LEVER 2-SPEED TRANSMISSION ONLY

A

A

M726E-045

A Travel Speed Control Lever

This lever allows the operator to set the maximum speed of the machine to maintain a given speed without having to feather the drive pedals. The travel speed control lever is mounted on the left hand armrest, below and to the left of the steering joystick.

• Push the lever forward to INCREASE the maximum speed.

• Pull the lever backwards to DECREASE the maximum speed of the machine.

On machines equipped with a wideRANGETM transmission, creep is activated hydraulically when the lever is pulled fully backwards. Creep provides maximum available tractive force to the wheels at a reduced speed.

NOTE: This lever can be used while the machine is in motion.

Refer to TRAVEL SPEED CONTROL LEVER ADJUSTMENT in SECTION 3.

NOTE: Creep mode is also accessible electronically through the computer. Refer to COMPUTER – ADJUSTMENT MENU – GENERAL SETTINGS – CREEP MODE in THIS SECTION.

M726E-054

A Gear Shift Lever

SHIFTING GEARS

NOTICE Gear shifting must NOT be done while the machine is in motion. The 2-speed transmission does not have the capability to mesh moving gears. If the operator shifts gears while the machine is in motion, severe damage will occur to the shift collar and its mating gears and will result in a difficulty or inability to shift from one speed to the other. In order to shift gears with minimum effort and without damaging the transmission, there must be no motion between the gear teeth of the shift collar and the teeth of the low or high speed gear.

1. Bring the machine to a full stop on level ground.

2. Set the engine speed at LOW. 3. Depress the foot brake pedal to hold the machine stationary.

4. Move the gearshift lever to engage the desired gear.

Push down for HIGH gear, pull up for LOW gear.

Neutral is in the middle.

NOTE: If the gear will not engage, the shifting collar and the speed gear have not aligned. This can be corrected by lightly touching the steering joystick to slightly articulate the machine, which will aid the collar and gear to mesh and allow for easy shifting.

2.14

Tigercat 720G/724G/726G Feller Buncher

Controls and Operation

INSTRUMENT PANEL

ALARM LIGHT The computer displays messages and activates the master alarm and alarm light (RED) whenever a system fault occurs.

A B

NOTE: The computer will automatically perform a test at engine start up to ensure that the master alarm and alarm light are functioning. Refer to COMPUTER – MESSAGES in THIS SECTION.

INTERLOCK RESET SWITCH C D E F G

This switch is used to reset the interlock system after it is deactivated by opening either of the cab doors, or by turning the ignition switch to the OFF position.

This system prevents accidental or improper use of the controls from anywhere but the operator's seat.

H I

J K

With the engine running, and both doors closed, press and release the switch to reset the interlock system.

L

A

B

M726E-044

A B C D E F G H I J K L

Computer and Display Alarm Light Interlock Reset Switch Engine Speed Switch Cutter Switch (Saw) Parking Brake Switch Ignition Key Switch Fan Switch (Engine Cooling) Work Lights Switch Optional Switch Locations Auxiliary Power Supply – 12 Volt Lighter – 24 Volt

M726E-020

A Actuator (On Door) B Interlock Door Switch (Left Door Shown)

The left and right doors are equipped with an interlock door switch to prevent the machine from being operated with the doors open. To operate the machine, close both doors and press and release the interlock reset switch.

CAUTION

The instrument panel is located on the right side of the cab beside the operator's seat right armrest.

All functions on the machine can now be operated, either as intended or by accidentally touching them.

COMPUTER AND DISPLAY The computer and display is the operator interface with the electronic control system. The computer is the central unit in the control system which works as both a master controller and a display unit. Refer to COMPUTER in THIS SECTION for complete details and operation instructions.

Once the safety interlock system has been activated, the safety of both the operator and all persons outside the cab becomes the responsibility of the operator.

WARNING The interlock door switches and the interlock reset switch are safety features and their function must not be defeated in any way.

2.15

Controls and Operation

Tigercat 720G/724G/726G Feller Buncher CUTTER SWITCH – (SAW)

A B

724G-035

A

A Saw Icon C D E F G

H I

J K L

Use this switch to turn the saw ON or OFF. This switch sends a signal to the computer and the computer sends a signal to the cutter control valve to turn it ON. The saw icon on the computer display will turn green when the saw is ON. Set engine speed at HIGH (1500 rpm minimum) before turning ON the saw.

NOTE: When starting the saw with the hydraulic oil not at operating temperature, the saw can be turned ON with the engine at 1500 rpm and as the saw begins to turn, the engine speed can be reduced to LOW to allow the oil to warm up.

M726E-044

A B C D E F G H I J K L

Computer and Display Alarm Light Interlock Reset Switch Engine Speed Switch Cutter Switch (Saw) Parking Brake Switch Ignition Key Switch Fan Switch (Engine Cooling) Work Lights Switch Optional Switch Locations Auxiliary Power Supply – 12 Volt Lighter – 24 Volt

NOTE: If the engine is turned OFF or the interlock system is deactivated with the switch in the ON position, the saw will not start up when the engine is restarted or the interlock system is reset. The saw switch must be turned OFF and then back ON for the saw to start (with interlock system on).

Always decrease the engine speed at LOW for several minutes to allow the saw to slow down before turning OFF the saw.

SAW PRESSURE INDICATOR

ENGINE SPEED SWITCH This is a momentary switch used to increase or decrease engine speed. Press the bottom of the switch to decrease engine speed. Press the top of the switch to increase engine speed.

MAINTAINING CORRECT ENGINE SPEED It is most important that the speed of the engine be correct at all times: • LOW– 900 ± 25 rpm (No Load)

Each increment on the gauge represents approximately 69 bar (1000 psi). During cutting operations the indicator value will rise as the blade slows down due to cutting, and fall as the blade speeds up. A 2⁄3 value or higher indicates that the blade has not attained full speed from the previous cut or has jammed.

• HIGH– 2200 ± 25 rpm (No Load) NOTE: The above values are with the hydraulic and engine oil at normal operating temperatures and no functions activated.

2.16

Tigercat 720G/724G/726G Feller Buncher PARKING BRAKE SWITCH

Controls and Operation FAN SWITCH (ENGINE COOLING)

The parking brake is installed in the drive line between the transmission and the front axle. The brake is spring applied and hydraulically released.

A B

The parking brake is operated by the two-position switch on the control panel. Press the top of this switch (ON) to apply the parking brake. The parking brake icon on the computer display will be illuminated when the parking brake is applied.

C

724G-011

A Full ON B Auto C Clean (Purge)

Press the bottom of this switch (OFF) to release the parking brake.

NOTE: The parking brake must be applied to start the engine and released to drive the machine.

NOTE: The parking brake is automatically applied when a cab door is opened or when the engine is turned OFF.

IGNITION KEY SWITCH This is a three-position switch labelled STOP/RUN/ START: • STOP Position – All electrical power fed through the ignition switch is turned OFF. • RUN Position – The battery is connected to all functions. Used for normal machine operation.

• START Position – Turning the switch to this position starts the engine by connecting the batteries to the start relay. The switch will return to the RUN position when released.

WORK LIGHTS SWITCH This is a two-position switch used to turn ON the work lights.

OPTIONAL SWITCH LOCATIONS For use with optional equipment that requires a control panel switch.

AUXILIARY POWER SUPPLY – 12 VOLT A 12-volt outlet with 20-amp capacity for portable devices such as cell phones.

LIGHTER – 24 VOLT Cigar/cigarette lighter.

This is a three-position momentary switch, FULL ON/ AUTO/CLEAN. This switch, along with the computer, controls the operation of the engine cooling fan.

FULL ON (OVERRIDE) – When the switch is in the FULL ON position, the fan control system is overridden and the fan will operate at full forward speed. This setting is intended for use in the event of a temporary failure of the fan control system. AUTOMATIC reversing/cleaning does not function with the switch in the FULL ON position.

AUTO – This is the normal operating position for the fan control switch. When the switch is in the AUTO position, the fan will operate completely in an automatic mode.

NOTE: The computer is programmed to automatically reverse fan direction when the fan switch is in the AUTO position. The default setting is reverse every ten minutes for ten seconds, This setting is adjustable. Refer to COMPUTER – ADJUSTMENT MENU – FAN CLEAN INTERVAL AND FAN CLEAN DURATION in THIS SECTION for adjustment information.

CLEAN – When the switch is pressed momentarily to the CLEAN position, the fan direction is reversed to help clean the charge air cooler, radiator, A/C condenser, hydraulic oil cooler, pump drive gearbox cooler and air intake door screen. By reversing the fan blade direction, air flow is propelled in the opposite direction, thereby helping to force dust and debris off of the heat exchanger cores and screens.

It is also important to manually clean debris from the machine on a regular basis to maintain low machine operating temperatures. Refer to COOLER PACKAGE, CLEANING in SECTION 3.

2.17

Controls and Operation

Tigercat 720G/724G/726G Feller Buncher

AIR CONDITIONER-HEATER CONTROLS A

B

C

FAN SPEED KNOB This is a rotary, four-position (OFF/LOW/MED/HIGH) dial to control the speed of the blower fan.

D

A/C ON/OFF SWITCH This is a push/on push/off power switch for the A/C system.

AIR SOURCE KNOB

E M726E-050

A B C D E

Fan Speed Knob A/C ON/OFF Switch Air Source Knob Heat Knob Air Conditioning Knob

The controls on this panel are used to adjust the heating and air conditioning temperature for operator comfort in the operator's cab.

This is a two-position rotary dial used to select either fresh outside air or recirculated cabin air. To maximize the use of the A/C, place the control in the recirculate mode.

HEAT KNOB This is a variable rotary dial used to adjust the amount of heated air for the cab. This control must be OFF when using the air conditioning.

AIR CONDITIONING KNOB This is a variable rotary dial used to adjust the temperature of cooled air for the cab.

NOTE: To maximize the efficiency of the A/C, the heat control knob must be rotated to the OFF position. Also refer to ENGINE COOLANT SHUT-OFF VALVE in THIS SECTION. IMPORTANT! During cold weather, when the A/C system is not in use, it is recommended to run the A/C system for a period of five minutes every two weeks. This will circulate oil to all components of the A/C system.

2.18

Tigercat 720G/724G/726G Feller Buncher

Controls and Operation

ENGINE COOLANT SHUT-OFF VALVE A

AIR VENTS – CAB

C

A B

724E-085

B

A Engine Coolant Shut-Off Valve B Hose to A/C-Heater Unit in Cab C Engine

To maximize the efficiency of the air conditioning, the temperature control must be rotated to the MAX COLD position (fully counterclockwise). During times when cab heating is not required, close the engine coolant shut-off valve (on the heater hose from the engine) to prevent warm engine coolant from seeping through the A/C unit, thereby reducing the effect of the cooling.

M726E-001

A Air Vents B Filter, Recirculating Air – A/C Unit

The A/C heater system has seven air outlets in the cab.

2.19

Controls and Operation

FILTER, RECIRCULATING AIR – A/C HEATER UNIT

Tigercat 720G/724G/726G Feller Buncher

FUSE PANEL – CAB

A A

B C

700071

A Recirculating Air Filter

When the air source switch is in the RECIRCULATING AIR position, air in the cab is drawn into the A/C heater unit through this filter and recirculated. The filter is located at the base of the A/C heater unit.

Refer to AIR CONDITIONING SYSTEM– CAB AIR FILTERS in SECTION 3 for servicing requirements.

FILTER – FRESH AIR – CAB

M726E-053

A Fuse Panel – Cab B Engine Diagnostics Connection C USB Port, Computer

The fuses, diodes, resistors and relays are located behind a panel below the instrument panel. Press the latch button to open the door to access the fuses, diodes, resistors and relays. See FUSE AND RELAY PANEL – CAB in SECTION 3 for more details.

ENGINE DIAGNOSTICS CONNECTION A

Plug a remote electronic diagnostic device into this connection such as a laptop computer with appropriate engine manufacturer’s programming to perform engine performance analysis and tuning.

NOTE: This operation can only be performed by a trained service technician.

USB PORT, COMPUTER

726E-037

A Fresh Air Filter – Cab

When the air source switch (right control panel) is in the FRESH AIR position, outside air is drawn into the cab A/C-Heater unit through this filter and mixed with interior air from the cab. The filter is located in the rear of the cab roof and accessible from outside the cab.

IMPORTANT! This USB connection should only be used by a trained service technician.

This USB port is used to access the computer. A laptop with appropriate software can be plugged into this port for software updates, diagnostics and some adjustments.

Refer to COMPUTER in SECTION 6 of the SERVICE MANUAL for more information and safeguards related to the use of this port.

Refer to AIR CONDITIONING SYSTEM– CAB AIR FILTERS in SECTION 3 for servicing requirements.

2.20

Tigercat 720G/724G/726G Feller Buncher

PRESSURIZED WATER SYSTEM A

Controls and Operation

AUDIO SYSTEM

B

A B C 724G-070

A Hose B Water Shut-Off Valve (Shown Closed)

Turn the hand operated ball valve (shut-off valve) under the seat to the ON position to draw water from the pressurized holding tank at the rear of the machine.

When not in use, turn OFF the water supply at this valve and relieve the pressure in the rubber hose, under the operator's seat.

724G-002

A Radio B Microphone C Microphone Connection (Rear of Radio)

700115

The AM/FM/CD stereo radio includes a hands-free microphone and two rear-mounted speakers.

The AM/FM/WB/CD/RBDS/USB SiriusXM™ Ready and iPod™ Ready Stereo with Bluetooth® is located on the right rear of the cab roof.

Refer to the MANUFACTURER'S DOCUMENTATION for complete operation instructions.

BLUETOOTH FUNCTIONS

A

The radio includes built in Bluetooth technology that allows you to connect it to Bluetooth devices for streaming audio playback and hands free calling. The hands free microphone is located in the radio enclosure and is connected to the radio.

B 196-9A

Refer to the MANUFACTURER'S DOCUMENTATION for complete operation instructions.

A Air Charge Valve B Pressure Gauge

The pressure gauge on the side of the seat should read 4 bar (60 psi).

Refer to PRESSURIZED WATER SYSTEM MAINTENANCE in SECTION 3.

2.21

Controls and Operation

Tigercat 720G/724G/726G Feller Buncher

SKYLIGHT/EMERGENCY EXIT

DOME LIGHT

B B

A

A

M726E-049

A Dome Light B CB Radio

726E-070

A Retaining Handles B Skylight/Emergency Exit

The skylight provides tree top visibility and serves as a third cab exit should the two side doors become blocked.

There are two retaining handles on the inside and two on the outside to allow removal of the hatch from either side. These handles should be hand tightened only, to allow them to be unscrewed in case of an emergency.

The switch is located on the side of the dome light fixture.

CB RADIO (IF EQUIPPED) Consult the MANUFACTURER'S DOCUMENTATION for additional information.

REAR VIEW MIRROR

A

726E-071

A Rear View Mirror

A convex rear view mirror is located in the front of the cab, just below the roof, to assist in the view out the rear windows. Use the mirror along with the camera monitor when driving the machine in reverse.

2.22

Tigercat 720G/724G/726G Feller Buncher

Controls and Operation

FIRE EXTINGUISHER

BATTERY DISCONNECT SWITCH

A

A

B

724E-112

A Battery Disconnect Switch OFF

This manually-operated switch is located in the top of the battery compartment on the left rear corner of the machine. It completely disconnects most electrical circuits from the battery.

Turn OFF the battery disconnect switch if the vehicle is to be parked for an extended period of time, such as overnight.

M726E-052

A Pressure Gauge B Fire Extinguisher

IMPORTANT! Use the battery disconnect switch to turn OFF a running machine in an emergency only. A fault code will be logged by the ECU on the engine for improper shut down and power down.

A portable fire extinguisher is located in operator's cab.

The extinguisher should be checked daily to ensure that it is charged. The pointer on the charge gauge should point to the green region. If the indicator falls out of this green area, the extinguisher should be serviced immediately.

Maintain a CHARGED fire extinguisher on the machine at all times and KNOW HOW TO USE IT. Refer to the MANUFACTURER'S DOCUMENTATION for proper usage, additional information and recommended inspection and maintenance intervals.

2.23

Controls and Operation

Tigercat 720G/724G/726G Feller Buncher

ENGINE COOLANT HEATER CONTROL PANEL (OPTIONAL) A

There is a solenoid valve controlling the flow of coolant to the hydraulic tank heater. This solenoid valve is controlled directly by the heater control. The programming of the heater control in the cab will determine when the heater is ON and when it will turn OFF.

B

I

Consult the manufacturer's instruction manual for additional information.

H

G

F

E

D

IMPORTANT! During warm weather when the engine coolant heater is not in use operate the heater for a period of 20 minutes monthly. This will circulate engine coolant to all components of the heater system.

C

1075-087B

A B C D E F G H I

Time Display Heater ON Indicator Forward Reverse Instant Heating Program Selection Time/Day Memory Location Day of Week

Open the engine coolant shut-off valve before operating the coolant heater. Damage to the engine coolant heater pump may result if the valve is closed.

Refer to ENGINE COOLANT SHUT-OFF VALVE in THIS SECTION for more information.

A

F

E

E

D

B

C

LS855D-015

A B C D E F

NOTICE

Earlier Design

Later Design

ON/OFF Button LCD Screen Micro USB Service Port Selection Button Status Indicator Light(s) Rotary Knob

The digital timer is located in the front of the cab above the windshield.

This heater heats and circulates the engine coolant through the engine, the hydraulic tank, and the cab.

2.24

Tigercat 720G/724G/726G Feller Buncher

Controls and Operation

FIRE DETECTION SYSTEM

FIRE DETECTION SYSTEM COMPONENTS

NOTE: This system is for FIRE DETECTION ONLY, it is not a fire suppression system.

The Fire Detection System consists of the following main components:

In no way does the installation of this fire detection system reduce the need to adhere to the guidelines provided in FIRE PREVENTION in SECTION 1.

ALARM LIGHT AND ALARM

The fire detection system is only a warning system and will not extinguish a fire. If a fire is detected, it must be extinguished manually using certified fire fighting equipment.

A

SYSTEM OPERATION There are three thermostats mounted in the engine and hydraulic area that are connected to the computer control system. The thermostats are automatic heat detection devices and are set to close at 177°C (350°F).

M726E-044

A Alarm Light

The in-cab alarm light is on the instrument panel. The alarm (not shown) is in the compartment below the control panel.

M726E-134

When a thermostat closes, it sends a signal to the computer which activates an alarm, an alarm light and a message on the computer display indicating that a fire has been detected.

IN CASE OF FIRE DETECTION ALARM: 1. Park the machine on level ground with the attachment resting firmly on the ground.

2. Apply the parking brake.

3. Turn OFF the engine.

4. Remove the ignition key.

5. Remove the portable fire extinguisher from its storage location.

6. Exit the cab immediately taking the fire extinguisher with you.

7. Inspect the machine for the cause of the alarm.

Refer to WHAT TO DO IN CASE OF A MACHINE FIRE and WHAT TO DO AFTER A FIRE in SECTION 1.

2.25

Controls and Operation

Tigercat 720G/724G/726G Feller Buncher

THERMOSTAT – PUMP COMPARTMENT

ELECTRICAL POWER SUPPLY

A

A

M726E-053

724G-021

A Thermostat-Pump Compartment

In the hydraulic pump compartment.

THERMOSTAT–ENGINE COMPARTMENT (LEFT)

A Fire Detection System Fuse

Power is supplied to the fire detection system by one 5A fuse at location 6 in the fuse and relay panel which is accessed in the right side of the cab.

A

724G-061

A Thermostat-Engine Compartment (Left)

Rear-left side, in the engine compartment.

THERMOSTAT – ENGINE COMPARTMENT (RIGHT)

A

724E-096

A Thermostat – Engine Compartment (Right)

Above the front of the engine.

2.26

Tigercat 720G/724G/726G Feller Buncher

Controls and Operation

SYSTEM TEST

A

IMPORTANT! The following test is only to be performed on machines with a fire DETECTION system. If this test is performed on machines with a fire SUPPRESSION system it will activate the extinguishers.

B

DAILY:

D

C

726E-018

M726E-135

• This message will be displayed on the computer screen if there is a bad connection within the system. Repairs should be made immediately.

A B C D

Optimal Distance Between the Thermostat and the Heat Source Heat Gun Area of Thermostat to Which Heat should be Applied Thermostat

NOTE: DO NOT USE BUTANE TORCHES or any type of flame tool to heat the test the sensors. The intense heat from a flame tool can damage the sensor.

WEEKLY: • Inspect all parts for damage, rust, corrosion or dirt.

Replace any damaged parts immediately.

• Make sure all components are in place and unobstructed.

• Check fire detection electrical network for cut, frayed, stripped or damaged wires.

• Ensure thermostats are clean.

EVERY MONTH:

M726E-134

• Turn the ignition switch ON and use a heat source (heat gun) to apply heat to each of the thermostats (for approximately 30-40 seconds only) to confirm the warning system light and buzzer operate and that the following message displays on the computer screen.

2.27

Controls and Operation

Tigercat 720G/724G/726G Feller Buncher

AVOIDING DAMAGE AND FALSE SIGNALS DURING MACHINE SERVICE B

A M726E-044

M726E-052

E

724G-061

C D

724G-021

724E-095

718E-085

A Fire Extinguisher B Alarm Light C Thermostat (Engine Compartment, Right Side)

Pay attention to the location of the components of the fire detection system. Take care not to damage the heat sensors or wiring, this includes hitting, cutting, bending, denting, etc. Damage to heat sensors due to shock could make the system inoperable and/or cause false signals. Cut, pinched, or kinked wiring could make the system inoperable and/or cause false signals.

In addition, the thermostats are sensitive to heat from welding torches, steam cleaning or other outside sources which may create a false detection by the system.

If any of the components are damaged, replace them immediately before operating the machine.

D Thermostat (Hydraulic Compartment) E Thermostat (Engine Compartment, Left Side)

WARNING Failure to follow these instructions and guidelines may result in serious bodily injury, death, and property damage.

FIRE PREVENTION Refer to SECTION 1 for fire prevention information/ techniques.

2.28

Tigercat 720G/724G/726G Feller Buncher

Controls and Operation

TELEMATICS SYSTEM (DEALER INSTALL)

Telematics is a tool used by owners, operators, or service technicians to monitor a machine or fleet of machines. Monitoring the location, movements, fuel status, fault codes or a variety of other parameters is done using a web enabled device.

NOTE: Leave the ignition key switch in the RUN position for several minutes to allow the telematics module to fully power up after it has been powered off.

2.29

Controls and Operation

Tigercat 720G/724G/726G Feller Buncher

OPERATOR'S SEAT – STANDARD

FORE/AFT SLIDE Move and hold fore/aft slide lever. Roll seat forward or backward to the desired position relative to the foot pedal controls.

RIDE ADJUSTMENT Adjust the ride adjustment by turning the ride adjustment knob CCW until the seat cushion is level.

BACK ANGLE ADJUSTMENT D

Rotate back angle adjustment knob to place seat at the desired angle.

A

C

B

A

724E-021

A B C D

Height Adjustment Knob Fore/Aft Slide Lever Ride Adjustment Knob Lumbar Adjustment (Refer to Right Side of Seat)

WARNING The seat and shoulder restraint belts must be used at all times when operating this machine.

ADJUSTMENTS HEIGHT ADJUSTMENT The spring-assisted height adjustment is controlled by the height adjustment lever located on the front left side of the seat chassis. The four height settings: top, bottom and two in between, provide a total height adjustment of 76 mm (3 in).

B

332-6

A B

Lumbar Horizontal Adjustment Armrest Adjustment

ADJUSTABLE LUMBAR For fore-and-aft displacement, rotate horizontal adjustment knob.

ARMREST ADJUSTMENT Each armrest has two adjustments to place it in the required position. Loosen the adjustment locking wing bolts to reposition armrest height and fore/aft position.

To raise the seat height, firmly lift up on the height adjustment lever. When the lever releases, hold it up, while partially lifting the operator’s body weight from the seat. When the seat is at the desired height, firmly push down on the lever until the seat locks (a click should be heard).

To lower the seat height, firmly lift up on the height adjustment lever. When the lever releases, partially apply operator body weight to the seat until the seat is at the desired height. Firmly push down on the lever.

Hold lever down until the seat locks into position (a click should be heard).

2.30

Tigercat 720G/724G/726G Feller Buncher

Controls and Operation

PROBLEMS AND CORRECTIVE ACTION RIDES IS TOO STIFF/SEAT TENDS TO PUSH OR THROW OPERATOR FORWARD The ride adjustment knob has been tightened (turned counter-clockwise) too much. This typically happens because the operator is trying to use additional ride adjustment knob rather than the height adjustment lever to raise the seat. Operator is riding the seat in the low height position setting.

Refer to HEIGHT ADJUSTMENT.

RIDES IS TOO SOFT OR BOTTOMS OUT AND PINCHES OPERATOR The seat ride adjustment knob has not been tightened (turned counter-clockwise) enough.

Insufficient ride adjustment exaggerates the kneeaction movement of the seat. This usually happens because the operator is trying to lower the seat by decreasing the amount of ride adjustment instead of using the height adjustment lever. Refer to HEIGHT ADJUSTMENT.

SEAT IS TOO HIGH/SEAT TOO LOW There are several things which can cause improper seat height. Refer to the height adjustment and adjust seat to the desired position. If the proper height cannot be reached using one of the four height adjustment settings, it may be necessary to install the seat on a higher base.

OPERATOR’S LEGS FALLING ASLEEP The seat is adjusted too high, and the ride adjustment knob has not been tightened (turned counter-clockwise) enough, resulting in the operator sitting in a bucket. Refer to HEIGHT ADJUSTMENT and RIDE ADJUSTMENT.

2.31

Controls and Operation

Tigercat 720G/724G/726G Feller Buncher

OPERATOR'S SEAT – AIR RIDE

RIDE ADJUSTMENT To stiffen the ride, push the air valve knob to add air for a firmer seat. Release the knob when the desired seat firmness is achieved.

D

To soften the ride, pull the air valve knob to soften the seat by removing air. Release the knob when the desired seat firmness is achieved.

FORE/AFT SLIDE Move and hold fore/aft slide lever. Roll seat forward or backward to the desired position relative to the foot pedal controls.

BACK ANGLE ADJUSTMENT Rotate back angle adjustment knob to place seat at the desired angle.

C A B

A

T726E-061

A B C D

Height Adjustment Lever Fore/Aft Slide Lever Air Ride Valve Knob Lumbar Adjustment (Refer to Right Side of Seat)

WARNING The seat and shoulder restraint belts must be used at all times when operating this machine.

ADJUSTMENTS

B 332-6

A 2-Way Lumbar Horizontal Adjustment B Armrest Adjustment

HEIGHT ADJUSTMENT

ADJUSTABLE LUMBAR

The spring-assisted height adjustment is controlled by the height adjustment lever located on the front left side of the seat chassis. The four height settings: top, bottom and two in between, provide a total height adjustment of 76 mm (3 in).

For fore-and-aft displacement, rotate horizontal adjustment knob.

To raise the seat height, firmly lift up on the height adjustment lever. When the lever releases, hold it up, while partially lifting the operator’s body weight from the seat. When the seat is at the desired height, firmly push down on the lever until the seat locks (a click should be heard).

ARMREST ADJUSTMENT Each armrest has 2 adjustments to place it in the required position. Loosen the adjustment locking wing bolts to reposition armrest height and fore/aft position.

To lower the seat height, firmly lift up on the height adjustment lever. When the lever releases, partially apply operator body weight to the seat until the seat is at the desired height. Firmly push down on the lever.

Hold lever down until the seat locks into position (a click should be heard).

2.32

Tigercat 720G/724G/726G Feller Buncher

Controls and Operation

PROBLEMS AND CORRECTIVE ACTION RIDES IS TOO STIFF/SEAT TENDS TO PUSH OR THROW OPERATOR FORWARD The air ride control valve has over-pressurized the seat air suspension. This typically happens because the operator is trying to use the air suspension to adjust the ride height rather than using the height adjustment lever to raise the seat. Refer to HEIGHT ADJUSTMENT.

RIDES IS TOO SOFT OR BOTTOMS OUT AND PINCHES OPERATOR The air ride control valve has under-pressurized the seat air suspension ride adjustment Insufficient pressure exaggerates the knee-action movement of the seat. This usually happens because the operator is trying to lower the seat by decreasing the amount of air pressure instead of using the height adjustment lever. Refer to HEIGHT ADJUSTMENT.

SEAT IS TOO HIGH/SEAT TOO LOW There are several things which can cause improper seat height. Refer to the HEIGHT ADJUSTMENT and adjust seat to the desired position. If the proper height cannot be reached using one of the four height adjustment settings, it may be necessary to install the seat on a higher base.

OPERATOR’S LEGS FALLING ASLEEP The seat is adjusted too high, and the air ride control valve has under pressurized the seat air suspension ride adjustment, resulting in the operator sitting in a bucket. Refer to HEIGHT ADJUSTMENT and RIDE ADJUSTMENT.

2.33

Controls and Operation

Tigercat 720G/724G/726G Feller Buncher

COMPUTER CONTROL SYSTEM

A

B

C

F

724G-035

A B C D E

G

UP Arrow Button OK Button DOWN Arrow Button Menu Button Back Button

H

I F G H I

E

D

F1 Button F2 Button F3 Button F4 Button

The buttons are configured by program software to bring up a menu, bring up an adjustment group or act as a virtual input.

A

• OK button.

Pushing this button equals 'Enter'. It saves the value or confirms the selection you have made.

• Menu button.

Always brings up the Main menu. It is not programmable.

M726E-044

• Back button.

A Computer Display

The computer and display is the operator interface with the electronic control system. The computer is the central unit in the control system that functions as both a master controller and a display unit.

Returns you to the previous display screen. May be configured by program software to bring up a display screen, bring up an adjustment group or act as a virtual input.

• F1 – F4 function buttons.

The front of the computer consists of a control panel with a display and nine buttons:

Programmed buttons that are configured by program software to bring up a display screen, bring up an adjustment group or act as an input.

• UP and DOWN arrow buttons.

Navigation buttons that are used to scroll through selections on a menu page.

2.34

Tigercat 720G/724G/726G Feller Buncher

Controls and Operation

COMPUTER NETWORK B

G

A

C

H D

J K

E

I

700738

A B C D E F

Computer and Display Module Engine Electronic Control Unit USB Port Expansion Module XA2-A0 (Cab) Expansion Module XA2-A1 (Rear Chassis) Drive Prevent Valve Electronic Solenoid

G H I J K

Fan Valve Electronic Solenoids Engine Diagnostics Connection Pilot Manifold Electronic Solenoids Cutter Control Valve Pressure Sender Cutter Control Valve Electronic Solenoid

The computer is part of a network of components.

The computer is the main controller in the system.

The computer program is the operating system for the computer display as well as the control system for the machine operating parameters.

F

Electronic signals are transmitted to the corresponding XA2 expansion module and on to the corresponding control valve solenoid. The applicable hydraulic control valves are activated allowing hydraulic oil to flow to the functions activated by the controls.

The engine ECU provides electronic information to the computer via the J1939 CAN BUS link. This information is displayed on the computer display.

M726E-123

NOTE: The computer is software-based. This software may be updated after the machine is in service as part of on-going product improvement programs and service newsletters. The information contained in this manual is accurate at the time of printing. Improvements to the machine and/or software are on-going and may not be covered. In these cases contact your Tigercat dealer for appropriate information.

G

700042

F XA2-A0 Expansion Module – Cab G XA2-A1 Expansion Module – Behind Cab, Right Side

2.35

F

Controls and Operation

Tigercat 720G/724G/726G Feller Buncher

COMPUTER DISPLAY MAIN SCREEN A

B

C

D

E

F

J G K

H L

I

700229

A B C D E F G H I

M

N

O

Interlock System – ON/OFF Parking Brake – ON/OFF Creep Mode – ON/OFF Saw Indicator – ON/OFF Hydraulic Oil Return Filter Bypass * Time of Day Saw Pressure Gauge Engine Speed RPM Engine Coolant Temperature Gauge ***

P J K L M N O P Q

Q

Fuel Level Gauge ** DEF Level Indicator Hydraulic Oil Temperature Gauge *** Hydraulic Oil Grade Engine Menu – Press F1 To Select Adjustment Menu – Press F2 to Select Information Menu – Press F3 to Select Alarm Indicators – Press F4 To Select

* HYDRAULIC OIL RETURN FILTER BYPASS

** FUEL LEVEL GAUGE SYMBOL

GREY – Hydraulic oil is not bypassing return filters.

YELLOW– Fuel level is low.

YELLOW– Hydraulic oil is below operating temperature and is bypassing return filters. Allow hydraulic oil to warm to operating temperature.

*** TEMPERATURE GAUGE SYMBOL

RED – Hydraulic oil is at operating temperature and is bypassing return filters. STOP the machine and change the return filters immediately.

Refer to FILTERS– HYDRAULIC OIL RETURN in SECTION 3 for more information.

BLUE – Temperature range is LOW. WHITE – Temperature range is NORMAL. RED – Temperature range is HIGH. IMPORTANT! To prevent damage to the machine, DO NOT run the attachment circuit or work the machine hard when the hydraulic oil temperature gauge symbol is BLUE.

2.36

Tigercat 720G/724G/726G Feller Buncher ENGINE MENU

Controls and Operation The engine functions displayed are: Charge Air Temperature – °C or °F Engine Coolant Temperature – °C or °F Engine Oil Temperature – °C or °F Fuel Temperature – °C or °F Engine Speed – rpm Turbocharger Boost Pressure – bar or psi Engine Oil Pressure – bar or psi Engine Load – % Engine Hours – h

724G-035

Press the F1 button from the main screen to view the Engine menu.

Voltage – V Fuel Rate – L/h or US gph (instantaneous)

700476

2.37

Controls and Operation

Tigercat 720G/724G/726G Feller Buncher

ENGINE FUNCTIONS

CHARGE AIR TEMPERATURE – °C OR °F This display indicates the charge air cooler temperature reading.

If temperature rises above the recommended temperature, alarm will sound, check the following: • Plugged cooler package air intake screens in doors access panel.

• Plugged charge air cooler.

DO NOT continue to operate the machine.

Refer to COOLER PACKAGE, CLEANING in SECTION 3 and COMPUTER – MESSAGES in THIS SECTION. ENGINE COOLANT TEMPERATURE – °C OR °F

700476

Press the F1 button to toggle ECO MODE ON and OFF (724G/726G only).

This display indicates the current engine coolant temperature.

Press the F2 button to toggle between metric and Imperial units of measure.

If temperature rises above the recommended temperature, alarm will sound, check the following:

Press the F3 button to select the fuel information display.

Press the back button to return to the main screen.

• Plugged cooler package air intake screens in doors and access panels.

• Plugged oil cooler.

DO NOT continue to operate machine.

Refer to COOLER PACKAGE, CLEANING in SECTION 3 and COMPUTER – MESSAGES in THIS SECTION. A

B

C

A Engine Temperature Low B Engine Temperature Normal C Engine Temperature High

NOTE: Coolant temperature can also be monitored using the engine coolant temperature gauge on the main screen. The changes in gauge symbol colour indicate temperature range (blue=low, white=normal, red=high).

2.38

Tigercat 720G/724G/726G Feller Buncher

Controls and Operation TURBOCHARGER BOOST PRESSURE – BAR OR PSI

ENGINE OIL TEMPERATURE – °C OR °F This display indicates the current engine oil temperature.

This display indicates air intake manifold boost pressure. This reading is an absolute value and includes atmospheric pressure.

If temperature rises above the recommended temperature, alarm will sound, check the following: • Plugged cooler package air intake screens in doors and access panels.

ENGINE OIL PRESSURE – BAR OR PSI This display indicates engine oil pressure.

• Plugged radiator.

If oil pressure falls too low an alarm will sound.

DO NOT continue to operate machine.

Refer to COOLER PACKAGE, CLEANING in SECTION 3 and COMPUTER – MESSAGES in THIS SECTION. FUEL TEMPERATURE – °C OR °F This display indicates the fuel temperature.

ENGINE SPEED – RPM This display indicates engine speed in rpm.

Refer to COMPUTER – MESSAGES in THIS SECTION. ENGINE LOAD – % This display indicates the percentage of maximum engine load currently in use.

ENGINE HOURS – H This display indicates the total number of hours the engine has run.

MAINTAINING CORRECT ENGINE RPM

VOLTAGE – V

It is important that the engine speeds be correct at all times: N67 Tigercat by FPT Engine: LOW: 900 RPM (No Load) HIGH: 2200 RPM (No Load) NOTE: The above values are measured with the hydraulic and engine oil at normal operating temperatures and no functions activated.

Engine speed defaults to 900 rpm when the engine is started.

IMPORTANT! 24 VOLT ELECTRICAL SYSTEM This display indicates engine voltage levels.

Normal operating range for the electrical system is between 20 and 30 volts.

If the engine voltage goes outside the normal range an alarm will sound. Refer to COMPUTER – MESSAGES in THIS SECTION. A reading in excess of 30 volts indicates a possible faulty voltage regulator.

A reading less than 20 volts indicates a possible faulty battery or alternator.

FUEL RATE – L/H OR US GPH (INSTANTANEOUS)

NOTE: Engine speed can also be monitored using the engine tachometer gauge shown on the main screen.

This display indicates the current rate of fuel consumption in gallons per hour.

2.39

Controls and Operation

Tigercat 720G/724G/726G Feller Buncher

ECO MODE FUNCTION (724G/726G ONLY)

700476

Press the F1 button to toggle ECO MODE ON and OFF. Press the back button to return to the main screen.

FUEL INFORMATION FUNCTIONS

724G-038

Press the F2 button to toggle between metric and Imperial ( ) units of measure Press the F3 button to reset ( ) the trip fuel used and trip average fuel rate functions.

TOTAL FUEL INFORMATION This display indicates the total fuel used during the life of the machine: Total fuel used – L or US gal Total hours – h Total fuel rate – L/h or US gph TRIP FUEL INFORMATION

724G-060

When ECO MODE is ON, the icon is illuminated green and is also shown on the main screen. Placing the engine in ECO MODE adjusts the engine settings for higher fuel efficiency with a corresponding reduction in available engine horsepower.

This display indicates the average fuel consumption rate for the machine since last reset: Trip fuel used – L or US gal Trip hours – h Trip fuel rate – L/h or US gph

FUEL GAUGE The fuel level gauge is shown on the main screen.

NOTE: A yellow fuel symbol indicates fuel level low.

Press the back button to return to the Engine menu.

Press the back button again to return to the main screen.

2.40

Tigercat 720G/724G/726G Feller Buncher

Controls and Operation

ADJUSTMENT MENU

GENERAL SETTINGS 724G-039

724G-035

Press the F2 button from the main screen to view the General Settings screen.

The selections available are: • Hydraulic Oil Grade Selection • Fan Clean Frequency • Fan Clean Duration • Creep Mode Press the UP or DOWN arrow buttons to select the desired selection.

Press the OK button to make the selection.

The General Settings menu can also be accessed from the main screen by pressing the menu button.The Main menu will appear on the computer display.

724G-033

The current General Settings displayed are: • Hydraulic Oil Grade • Fan Clean Duration – seconds • Fan Clean Frequency – minutes Press the F1 (Adjust) button to view the General Settings menu to make changes to these settings.

2.41

Controls and Operation

Tigercat 720G/724G/726G Feller Buncher 724G-115

HYDRAULIC OIL GRADE SELECTION 724G-039

From the Main menu, press the F1 button to select the Adjust menu.

724G-115

Press the UP or DOWN arrow buttons to select Oil Grade Selection.

Press the OK button to make adjustments.

M726G-094

Press the OK button to select General Settings (default).

724G-039

Press the UP or DOWN arrow buttons to select the desired hydraulic oil grade.

Press the OK button to set the selection. The screen will automatically return to the General Settings menu.

Press the UP or DOWN arrow buttons to select General Settings.

Press the OK button to confirm the selection.

2.42

Tigercat 720G/724G/726G Feller Buncher

Controls and Operation

FAN CLEAN FREQUENCY

FAN CLEAN DURATION 724G-046

724G-045

Press the UP or DOWN arrow buttons to select Fan Clean Frequency.

Press the UP or DOWN arrow buttons to select Fan Clean Duration.

Press the OK button to make adjustments.

Press the OK button to make adjustments.

726G-068

726G-067

The setting value can be adjusted between 1 minute and 20 minutes. This is the setting for auto reverse of the cooling fan to go into the clean mode (reverse/clean).

The factory default setting is every 10 minutes.

The setting value can be adjusted between 10 seconds and 30 seconds. This is the time the cooling fan remains in the clean (reverse/clean) mode. The factory default is 10 seconds.

Press the UP or DOWN arrow buttons to select the value desired.

Press the UP or DOWN arrow buttons to select the value desired.

Press the OK button to set the value. The screen will automatically return to the General Settings menu.

Press the OK button to set the value. The screen will automatically return to the General Settings menu.

2.43

Controls and Operation

Tigercat 720G/724G/726G Feller Buncher INFORMATION MENU

CREEP MODE APPLICABLE TO MACHINES WITH 2-SPEED TRANSMISSION ONLY 724G-040

724G-048

Press the F3 button from the main screen to access the Information menu.

Press the UP or DOWN arrow buttons to select the Creep Mode selection in the General Settings menu.

Press the OK button to make adjustments.

724G-041

724G-049

When selected the information functions displayed are: Machine Voltage–V The setting value can be adjusted OFF or ON. The factory default is OFF. Press the UP or DOWN arrow buttons to select the desired setting.

Press the OK button to set the value. The screen will automatically return to the General Settings menu.

This display indicates machine voltage readings which are voltage levels in the electrical system.

Disc Saw Pressure – bar or psi This display indicates disc saw pressure.

Disc Saw Hours – h (Total or Trip)*

Press the back button to return to the previous menu.

Press the back button again to return to the main screen.

This display indicates disc saw hours. Either total or trip depending on the F2 button toggle* on this screen.

2.44

Tigercat 720G/724G/726G Feller Buncher

Controls and Operation

Serial Number This display indicates machine serial number.

Machine Hours – h This display indicates the total number of hours the machine has run.

Hydraulic Oil Temperature – °C or °F This display indicates the current hydraulic oil temperature registered in the main hydraulic tank.

If the temperature rises above the recommended operating range for the type of hydraulic oil in use, alarm will sound, check the following: • Plugged oil cooler • Malfunction in a hydraulic system • High loads on the hydraulic system • Malfunction of the cooling fan • Low hydraulic oil level • Correct Hydraulic Oil Grade Selection If the hydraulic oil temperature rises above the recommended operating range, DO NOT continue to operate the machine.

NOTE: The hydraulic oil temperature can also be monitored using the hydraulic oil temperature gauge shown on the main screen. The gauge symbol colour changes indicate the temperature range (BLUE=low, WHITE=normal, RED=high).

A

724G-048

A Hydraulic Oil Grade – Main Screen

Hydraulic oil grade information is shown on the main screen below the hydraulic oil temperature gauge.

Operating outside the recommended operating range will shorten hydraulic component life.

Refer to COMPUTER – ADJUSTMENT MENU – HYDRAULIC OIL GRADE SELECTION in THIS SECTION for hydraulic oil grade selection settings information.

Refer to APPROVED HYDRAULIC OILS in SECTION 3 for hydraulic oil operating range information.

Refer to COMPUTER – MESSAGES – CRITICAL – HYDRAULIC OIL TEMPERATURE HIGH in THIS SECTION for more information about the hydraulic oil temperature message.

The alarm must not be used to monitor the hydraulic oil. The operator must use the hydraulic oil temperature gauge on the computer display main screen, together with the HYDRAULIC OIL OPERATING RANGE CHART in SECTION 3 to prevent damage to the hydraulic system.

2.45

Controls and Operation

Tigercat 720G/724G/726G Feller Buncher

CUTTER FUNCTIONS

724G-049 724G-049

Press the F3 button to reset the saw hours.

Press the F1 button to select the Cutter Functions display.

724G-114

The following information is displayed: Saw Pressure Gauge – bar or psi Engine Speed – rpm Hydraulic Oil Temperature – °C or °F Engine Coolant Temperature – °C or °F Press the back button to return to the Information menu.

2.46

Tigercat 720G/724G/726G Feller Buncher

Controls and Operation

UNITS OF MEASURE

724G-049

Press the F2 button to toggle between metric and Imperial units of measure.

Press the back button to return to the main screen.

2.47

Controls and Operation

Tigercat 720G/724G/726G Feller Buncher

MAIN MENU

724G-048

Press the menu button the Main menu.

from the main screen to view 724G-115

The following selections are displayed: • Adjust – Press F1 • Measure – Press F2 • Preferences – Press F3 • Info– Press F4 Press the back button to return to the main screen.

2.48

Tigercat 720G/724G/726G Feller Buncher

Controls and Operation

MEASURE MENU

724G-054 724G-115

The following menu items can be selected.

Press the F2 button to access the Measure menu.

• Cutter Control • Voltage Inputs • Digital Inputs • Current Outputs • Digital Outputs • Engine/Emissions J1939 Inputs • Fan Control • Fault Management • Options • Hours • Fuel Economy • Telematics This menu is used by Tigercat service technicians.

Refer to SECTION 6 of the SERVICE MANUAL for more information.

Press the UP or DOWN arrow buttons to select the menu item.

Press the OK button to view the information from the menu item.

Press the back button to return to the Measure menu or press the F1 button to return to the Main menu.

Press the back button again to return to the main screen.

2.49

Controls and Operation

Tigercat 720G/724G/726G Feller Buncher

PREFERENCES MENU

DISPLAY ADJUSTMENT 2000101

2000074

Press the F3 button from the Main menu to view the Preferences menu.

2000100

Press the F1 button from the Preferences menu to display the Display adjustment screen with the following selections: • Return to Main menu – Press F1 • Backlight – Press F2 • Screen saver – Press F3 BACKLIGHT ADJUSTMENT 2000102

The Preferences menu displays the following selections: • Display – Press F1 • Date/Time – Press F2 • Language – Press F3 Press the F2 button to select the Backlight adjustment.

The range is 10 – 100. The default setting is 100. The lower the number, the longer the life of the display unit.

Press the UP or DOWN arrow buttons to select the desired value.

Press the OK button to set the value.

2.50

Tigercat 720G/724G/726G Feller Buncher

Controls and Operation DATE/TIME ADJUSTMENT

SCREEN SAVER ADJUSTMENT 2000103

2000105

Press the F3 button to view the Screen saver adjustment screen.

2000104

Press the F2 button from the Preferences menu to display the Date/Time adjustment screen with the following selections: • Date – Press F1 • Time – Press F2

Press the UP and DOWN arrow buttons to scroll through the choices: • Screen Saver Off, Dimmed or Black • Dimmed • Timeout: 5 – 600 seconds • Dimmed light: 0 – 60 seconds • Black – Timeout 5 – 600 seconds Press the UP or DOWN buttons to make a selection.

Press the OK button to make the selection and go to the next selection.

Press the back button to return to the Preferences menu.

2.51

Controls and Operation

Tigercat 720G/724G/726G Feller Buncher

DATE ADJUSTMENT

2000108 2000106

Press the F1 button from the Date/Time Adjustment screen to set the date. Year is automatically highlighted.

When the month has been confirmed the day is highlighted.

Press the UP or DOWN arrow buttons to select the day.

Press the UP or DOWN arrow buttons to select the year.

Press the OK button to confirm day selected.

Press the OK button to confirm year selected.

2000105 2000107

When the year has been confirmed the month is highlighted.

Press the UP or DOWN arrow buttons to select the month.

The display will return to the Date/Time adjustment screen.

Press the F2 button from the Date/Time Adjustment screen to set the time.

Press the OK button to confirm month selected.

2.52

Tigercat 720G/724G/726G Feller Buncher

Controls and Operation

TIME ADJUSTMENT

LANGUAGE ADJUSTMENT 2000137

2000109

Hour is automatically highlighted.

Press the UP or DOWN arrow buttons to select the hour.

Press the OK button to confirm hour selected.

Press the F3 button from the Preferences menu to view Language selection screen. The languages available for selection will be shown.

Press the UP or DOWN arrow buttons to select the language.

2000110

Press the OK button to confirm language selected. The display will return to the Preferences menu.

Press the back button to return to the Main menu.

Press the back button again to return to the main screen.

When the hour has been confirmed the minute is highlighted.

Press the UP or DOWN arrow buttons to select the minute.

Press the OK button to confirm minute selected. The display will return to the Date/Time menu.

Press the back button to return to the Preferences menu.

2.53

Controls and Operation

Tigercat 720G/724G/726G Feller Buncher

INFO MENU

MODULES 700205

700201

Press the F4 button from the Main menu to view the Info menu.

700204

Press the F1 button from the Info menu to select the Modules menu. This menu provides information on the following machine modules: • Display • XA2-A1-Module 1 – Cab • XA2-A2-Module 2 – Rear Chassis • FPT Engine • Telematics Press the UP or DOWN arrow buttons to select a module. Press the OK button to view the selection.

700206

The Info menu displays the following selections: • Modules – Press F1 • Logs – Press F3 The machine ID information is also displayed on the screen.

Specific information for the module is displayed on the screen.

This menu is used by Tigercat service technicians.

Refer to SECTION 6 of the SERVICE MANUAL for more information.

Press the back button twice to return to the Info menu or press the F1 button to return to the Main menu.

LOGS 2.54

Tigercat 720G/724G/726G Feller Buncher

Controls and Operation

700227

700228

Press the F3 button from the Info menu to select the Logs menu.

Press the UP or DOWN arrow buttons to scroll through the list of events.

This menu lists System Logs and Fault Logs and the number of records within each log. The records are a list of all the fault occurrences in each log.

The events are a list of all the fault occurrences in each log. Events cannot be cleared by operators.

Press the UP or DOWN arrow buttons to select the log.

Press the OK button to view the events of the log.

This menu is used by Tigercat service technicians. Refer to SECTION 6 of the SERVICE MANUAL for more information.

Press the back button to return to the Logs menu or press the F1 button to return to the Main menu.

Press the back button again to return to the main screen.

2.55

Controls and Operation

Tigercat 720G/724G/726G Feller Buncher

MESSAGES, COMPUTER The computer displays messages and activates the master alarm and alarm light when a system fault occurs.

NOTE: The computer control system will automatically perform a test at engine start up to verify that master alarm and alarm light are functioning. Refer to STARTING ENGINE in THIS SECTION. There are different types of messages and alarms. They appear on the screen as a block message.

The types of messages are: • CRITICAL MESSAGE – RED header • ERROR MESSAGE – RED header • ALERT MESSAGE – YELLOW header Messages can be hidden or acknowledged by pressing the F2 button (Hide or OK).

All messages that have been hidden or acknowledged are stored in the computer.

In some instances it will be necessary to immediately stop the machine, turn OFF the engine and repair the problem causing the message.

Active fault messages that have been hidden can be reviewed by pressing the F4 button. Recalled messages will be displayed in order starting with the highest priority first.

2.56

Tigercat 720G/724G/726G Feller Buncher

Controls and Operation

CRITICAL MESSAGES (RED) Critical messages advise the operator that a critical machine fault is about to occur or a system fault has occurred.

Critical messages have the highest level of priority and are used to alert operator that immediate action must be taken to prevent damage to machine or to ensure operator safety.

When a critical message is displayed, the master alarm and alarm light will sound and flash continuously. The message remains on the screen until the operator hides it.

A list of CRITICAL MESSAGES is as follows:

The message will give brief details of the fault and advise what action is necessary.

• Hydraulic Oil Level Low

In some instances the machine requires immediate action to correct the problem which requires the operator to STOP machine operation, turn OFF the engine and service the machine to correct the problem.

• Hydraulic Oil Return Filters Bypassed

• Hydraulic Oil Temperature High • Pump Gearbox Temperature High • Fire Detected • Engine Fault Code Messages – Critical

However, if the machine cannot be stopped immediately for safety reasons, the operator can hide the message.

In this instance the machine should only be operated long enough to make the machine safe, then STOP machine operation and turn OFF the engine before serious machine damage can occur!

• Engine Oil Pressure Low • Engine Oil Pressure Low – Engine Derate • Engine Oil Temperature High • Engine Coolant Level Low

Messages can be hidden by pressing the F2 button (Hide).

• Engine Coolant Temperature High

Critical messages flash the critical symbol above the F4 button when active messages are hidden. The symbol will continue to flash until the problem is resolved and the fault becomes inactive.

• Main Fuel Filter Clogged – Engine Derate

• Engine Coolant Temperature High – Engine Derate • Fuel Pre-Filter Clogged or Disconnected • Hardware Fault – MD3 (Computer) • Hardware Fault – XA2-A0

Active messages that have been hidden can be reviewed by pressing the F4 button.

• Hardware Fault – XA2-A1 • Hardware Fault – Engine • Aftertreatment System Technical Failure * • Diesel Exhaust Fluid Quality * • Engine Restarts Remaining Until Engine Lockout * • Engine Locked Out * • Aftertreatment System Engine Idle Too Long * * NOTE: The aftertreatment system and its related components are applicable to Tier 4f machines only.

700226

2.57

Controls and Operation HYDRAULIC OIL LEVEL LOW

Tigercat 720G/724G/726G Feller Buncher HYDRAULIC OIL TEMPERATURE HIGH

Hydraulic Oil

Hydraulic Oil

Level Low.

Temperature High.

This message will be displayed, alarm light will flash and alarm will sound when the main hydraulic oil tank level is low.

Stop the engine immediately when this alarm is activated. Operating machine with a low hydraulic oil level can cause hydraulic pumps to fail.

When this alarm is activated stop the engine and look for signs of broken hoses or other leaks. Repair leaks and refill the main hydraulic oil tank to FULL mark on the sight gauge. Restart engine and inspect for leaks.

This message will be displayed, alarm light will flash and alarm will sound when the oil temperature exceeds the recommended operating range for the type of hydraulic oil in use.

If the temperature rises above the recommended operating range for the type of hydraulic oil in use check the following: • Plugged cooler package air intake screens in doors and access panels • Malfunction in a hydraulic system • High loads on the hydraulic system • Malfunction of the cooling fan • Low hydraulic oil level • Correct Hydraulic Oil Grade Selection If hydraulic oil temperature rises above the recommended operating range DO NOT continue to operate the machine.

This alarm must not be used to monitor the hydraulic oil. The operator must use the hydraulic oil temperature gauge on the main screen, together with the HYDRAULIC OIL OPERATING RANGE CHART in SECTION 3 to prevent damage to the hydraulic system.

Hydraulic oil grade information is shown on the main screen below the hydraulic oil temperature gauge.

Operating outside the recommended operating range shortens hydraulic component life.

Refer to COMPUTER – ADJUSTMENT MENU – HYDRAULIC OIL GRADE SELECTION in THIS SECTION for hydraulic oil grade selection settings information.

Refer to APPROVED HYDRAULIC OILS in SECTION 3 for hydraulic oil operating range information.

2.58

Tigercat 720G/724G/726G Feller Buncher

Controls and Operation

HYDRAULIC OIL RETURN FILTERS BYPASSED

PUMP DRIVE GEARBOX TEMPERATURE HIGH

Return Oil Filters

Pump Gearbox Temperature

Bypassed. Slowly warm up machine or service if already warm.

Temperature High.

This message will be displayed, alarm light will flash and alarm will sound to inform the operator that the hydraulic oil is bypassing the return filters.

This message will be displayed, alarm light will flash and alarm will sound to inform the operator that the pump drive gearbox temperature is high.

This message may appear if the machine is cold. If the machine has already been warmed up, then the machine should be service immediately.

Stop the machine immediately when this alarm is activated and check the pump drive gearbox for proper operation.

NOTE: When hydraulic oil is at operating temperature, the hydraulic oil filter bypass icon will be illuminated RED. When the hydraulic oil temperature is low the icon will be illuminated YELLOW. Refer to FILTERS– HYDRAULIC OIL RETURN FILTERS in SECTION 3 for more information.

724G-058

A

A Hydraulic Oil Filter Bypass Icon

2.59

Controls and Operation FIRE DETECTED

Tigercat 720G/724G/726G Feller Buncher ENGINE FAULT CODE MESSAGES – CRITICAL

Fire Detection System

SPN: XXXXX 1 of 1

Fire Detected. When safe to do so, shutdown engine and exit cab.

Contact dealer.

This message will be displayed, alarm light will flash and alarm will sound to inform the operator that the fire detection system has detected a fire.

Refer to FIRE DETECTION SYSTEM in THIS SECTION for more information.

Refer also to WHAT TO DO WHEN A MACHINE FIRE OCCURS and WHAT TO DO AFTER A MACHINE FIRE HAS OCCURRED in SECTION 1.

Critical engine fault message(s) will be displayed, alarm light will flash and alarm will sound when a critical engine fault message is received from the engine electronic control module.

They provide the SPN code (suspect parameter number) as well as a message describing the fault (when available).

Critical engine fault codes are higher priority messages than alert level engine fault code messages. Critical messages can be hidden but immediate action must be taken, STOP machine operation and service engine immediately to resolve the cause of the fault.

NOTE: Some less common engine fault codes will appear without a message describing the fault. Make a note of the SPN code and contact service for more information.

Refer to ENGINE OPERATION AND MAINTENANCE MANUAL for specific information regarding the engine and aftertreatment system.

NOTE: The aftertreatment system and its related components are applicable to Tier 4f machines only.

NOTE: Contact your Tigercat dealer to obtain an Engine Fault Codes chart. An up to date copy should be kept in the manual box (in the cab). The chart is updated regularly by the engine manufacturer, so it is important to check periodically with the Tigercat dealer to ensure that you have a current copy of the Engine Fault Codes chart.

2.60

Tigercat 720G/724G/726G Feller Buncher

Controls and Operation

ENGINE OIL PRESSURE LOW

ENGINE OIL PRESSURE LOW – ENGINE DERATE

SPN: 9939 1 of 1

Engine Oil Pressure

Engine Oil Pressure Low.

Oil Pressure Low – Engine Derate

This message will be displayed, alarm light will flash and alarm will sound when engine oil pressure falls below 0.7 bar (10 psi ).

Turn OFF the engine when this alarm is activated. Check engine oil levels.

Refer to STARTING ENGINE in THIS SECTION for more information.

This message will be displayed, alarm light will flash and alarm will sound when and engine derate is triggered due to low engine oil pressure. This message may be accompanied by Engine Fault Code Messages related to engine oil pressure.

This message results in the following derate sequence: When engine oil pressure readings fall below 1.2 bar (17 psi) for more than 5 seconds this message will be shown and the engine will immediately begin to derate at 50 rpm/s to a set creep speed allowing the operator to safely stop the machine. DO NOT continue to operate machine.

Safely stop the machine and turn the engine OFF. Refer to COMPUTER– MESSAGES– CRITICAL – ENGINE OIL PRESSURE LOW in THIS SECTION for recommended corrective action. If the problem continues contact dealer for service.

When engine oil pressure readings rise above 1.4 bar (20 psi) for more than 5 seconds this message will be turned off and the engine will automatically ramp up engine speed at 50 rpm/s to full operating speed.

NOTE: An ENGINE TORQUE DERATE ACTIVE message will also be triggered as the engine begins to derate. Refer to COMPUTER – MESSAGES– ALERTS– ENGINE TORQUE DERATE ACTIVE.

2.61

Controls and Operation ENGINE OIL TEMPERATURE HIGH

Tigercat 720G/724G/726G Feller Buncher ENGINE COOLANT LEVEL LOW

SPN: 7123 1 of 1

Engine Coolant

Engine oil temperature high.

Level Low.

This message will be displayed, alarm light will flash and alarm will sound when engine oil temperature exceeds recommended engine temperature.

Check the cooler package and fan for proper operation and run a clean cycle if the machine is equipped with a variable pitch fan. It is also important to manually clean debris from the machine on a regular basis to maintain low machine operating temperatures. Refer to COOLER PACKAGE, CLEANING in SECTION 3 Refer to ENGINE OPERATION AND MAINTENANCE MANUAL for code information.

This message will be displayed, alarm light will flash and alarm will sound when the coolant level drops below a safe operating level. The sensor is located in the surge tank.

If this light comes on when the engine is running, stop the engine immediately and correct the fault. With engine running, top up radiator using correct solution of coolant antifreeze.

Refer to SERVICE AND LUBRICATION POINTS in SECTION 3.

WARNING

DO NOT remove the radiator fill cap when the engine is hot, release of pressurized coolant can cause serious burns.

Turn the engine off. Only remove the radiator fill cap when cool enough to touch with bare hands.

Slowly loosen the cap to the first stop to relieve pressure before removing completely.

2.62

Tigercat 720G/724G/726G Feller Buncher

Controls and Operation

ENGINE COOLANT TEMPERATURE HIGH

ENGINE COOLANT TEMPERATURE HIGH – ENGINE DERATE

Engine Coolant

Engine Coolant

Temperature high.

Temperature high.

This message will be displayed, alarm light will flash and alarm will sound when an engine derate is triggered due to high engine coolant temperature. This message may be accompanied by Engine Fault Code Messages related to coolant temperature.

SPN: 63011 1 of 1 Engine coolant temperature high.

This message results in the following derate sequence: • When coolant temperature rises to 225°F (107°C) for more than 5 seconds the critical symbol will flash.

• When coolant temperature rises to 230°F (110°C) for more than 5 seconds this message will be shown and the engine will immediately begin to derate at 50 rpm/s to a set creep speed allowing the operator to safely stop the machine. DO NOT continue to operate machine.

This message will be displayed, alarm light will flash and alarm will sound when engine temperature exceeds recommended engine temperature.

When this alarm is activated check for: • Plugged cooler package air intake screens in doors and access panels.

Safely stop the machine, set engine speed at LOW and turn the A/C off. If the engine coolant temperature reading does not return to normal operating levels turn the engine OFF and perform further cooling system checks. Refer also to COMPUTER – MESSAGES – CRITICAL – ENGINE TEMPERATURE HIGH in THIS SECTION for recommended corrective action. If engine coolant temperature does not return to normal operating levels contact dealer for service.

• Plugged radiator.

• Malfunction of the cooling fan Refer to COOLER PACKAGE, CLEANING in SECTION 3.

WARNING

• When coolant temperatures fall below 223°F (106°C) for more than 5 seconds this message will be turned off and the engine will automatically ramp up engine speed at 50 rpm/s to full operating speed.

Do not remove the radiator cap when the engine is hot, release of pressurized coolant can cause serious burns.

NOTE: An ENGINE TORQUE DERATE ACTIVE message will also be triggered as the engine begins to derate. Refer to COMPUTER – MESSAGES– ALERTS– ENGINE TORQUE DERATE ACTIVE.

Turn OFF the engine. Only remove the coolant fill cap when it is cool enough to touch with bare hands.

Slowly loosen cap to first stop to relieve pressure before removing completely.

2.63

Controls and Operation MAIN FUEL FILTER CLOGGED – ENGINE DERATE

Tigercat 720G/724G/726G Feller Buncher FUEL PRE-FILTER CLOGGED OR DISCONNECTED

Main Fuel Filter

Fuel Pre-Filter

Clogged – Engine Derate.

Clogged or Disconnected. Service machine to correct.

This message will be displayed, alarm light will flash and alarm will sound when an engine derate is triggered due to a clogged main fuel filter. This message may be accompanied by Engine Fault Code Messages.

When a main fuel filter clog is detected a message is displayed to alert the operator.

This message results in the following derate sequence:

This message will be displayed, alarm light will flash and alarm will sound to inform the operator that the main fuel filter is clogged.

Stop the machine immediately when this alarm is activated and inspect and service the fuel filters.

Refer to FILTERS– FUEL FILTERS in SECTION 3.

• When a fuel filter clog continues for more than 5 minutes this message will be shown and the engine will immediately begin to derate at 50 rpm/s to a set creep speed allowing the operator to safely stop the machine (creep speed setting is programmed to suit each machine type/model).

Change engine filter as soon as possible to correct. Refer to ENGINE OPERATION AND MAINTENANCE MANUAL for engine fuel filter replacement instructions. If the problem continues contact dealer for service.

• When a fuel filter clog condition is no longer detected for more than 5 seconds this message will be turned off and the engine will automatically ramp up engine speed at 50 rpm/s to full operating speed.

NOTE: An ENGINE TORQUE DERATE ACTIVE message will also be triggered as the engine begins to derate. Refer to COMPUTER – MESSAGES– ALERTS– ENGINE TORQUE DERATE ACTIVE in THIS SECTION.

2.64

Tigercat 720G/724G/726G Feller Buncher

Controls and Operation HARDWARE FAULT – XA2-A1

HARDWARE FAULT – MD3 (COMPUTER)

Hardware Fault - MD3

Hardware Fault - XA2-A1

Active fault has been hidden. Turn key off and on to recall active hidden hardware faults.

Active fault has been hidden. Turn key off and on to recall active hidden hardware faults.

This message will be displayed, alarm light will flash and alarm will sound when a critical active hardware fault related to the computer display has been hidden.

This message will be displayed, alarm light will flash and alarm will sound when a critical active hardware fault related to the XA2-A1 expansion module has been hidden.

To recall the original active fault(s) the operator must turn the ignition key switch OFF and ON. A VREF error is an example of the type of hardware fault which will be the original active fault which triggers this message.

HARDWARE FAULT – XA2-A0

To recall the original active fault(s) the operator must turn the ignition key switch OFF and ON. A VREF and no contact errors are examples of the type of hardware fault which may be the original active fault which triggers this message.

HARDWARE FAULT – ENGINE

Hardware Fault - XA2-A0

Hardware Fault - Engine

Active fault has been hidden. Turn key off and on to recall active hidden hardware faults.

This message will be displayed, alarm light will flash and alarm will sound when a critical active hardware fault related to the XA2-A0 expansion module has been hidden.

To recall the original active fault(s) the operator must turn the ignition key switch OFF and ON. A VREF and no contact errors are examples of the type of hardware fault which may be the original active fault which triggers this message.

Active fault has been hidden. Turn key off and on to recall active hidden hardware faults.

This message will be displayed, alarm light will flash and alarm will sound when a critical active hardware fault related to the Engine has been hidden.

To recall the original active fault(s) the operator must turn the ignition key switch OFF and ON. No contact error is an example of the type of hardware fault which may be the original active fault which triggers this message.

2.65

Controls and Operation THE AFTERTREATMENT SYSTEM AND ITS RELATED COMPONENTS ARE APPLICABLE TO TIER 4F MACHINES ONLY.

AFTERTREATMENT SYSTEM TECHNICAL FAILURE

Aftertreatment System Technical failure severe. Engine lockout will occur after full torque derate and 3 engine restarts.

Tigercat 720G/724G/726G Feller Buncher More severe technical faults will result in an engine lockout when the engine speed has derated to LOW and there have been 3 restarts. Once locked out the engine will only operate at LOW speed. The original cause(s) of the lockout must be corrected before the engine can be reset. Contact dealer to reset engine lockout for normal operation.

Refer to COMPUTER – MESSAGES– CRITICAL – ENGINE LOCKED OUT and COMPUTER – MESSAGES– CRITICAL – ENGINE RESTARTS REMAINING UNTIL ENGINE LOCKOUT in THIS SECTION. Identify the cause of the technical failure and take action to correct the problem.

Refer also to AFTERTREATMENT SYSTEM in SECTION 3 for more information.

This message will be displayed, alarm light will flash and alarm will sound when an aftertreatment technical fault is detected. Take immediate action to avoid affecting engine performance and damage to the diesel oxidation catalyst /selective catalytic reduction (DOC/SCR) aftertreatment system components.

The following engine derate sequence occurs immediately after the Aftertreatment System– Technical failure severe message: 1. Engine torque reduces to 75% of rated torque over the next 25 minutes.

2. The engine continues to operate at 75% of rated torque for approximately 65 minutes.

3. Engine torque reduces to 35% of rated torque over the next 40 minutes.

4. The engine continues to operate at 35% of rated torque for approximately 50 minutes.

5. Engine torque reduces to minimum value as the engine speed reduces to LOW over the next 30 minutes.

Some less severe technical faults can be fixed after the engine speed has been fully derated to LOW.

2.66

Engine derate – technical failure and tampering

Tigercat 720G/724G/726G Feller Buncher

Controls and Operation

AFTERTREATMENT SYSTEM TECHNICAL FAILURE – ENGINE DERATE SEQUENCE 100%

MIN

C

.

80%

≈ 25

90%

A

B

70%

≈ 65 MIN.

≈4

60%

0M I N.

TORQUE

50% 40%

D

30%

≈ 50 MIN.

≈ 30

20%

MIN .

10% 0%

E

F

0

60

1000010

180

120

240

300

MINUTES

A Critical Message: Aftertreatment System– Technical Failure Severe.

Engine torque begins to reduce.

B Engine torque reduced to 75% after 25 minutes.

C Engine torque begins to reduce further after 65 minutes.

2.67

D

Engine torque reduced to 35% after 40 minutes.

E

Engine torque begins to reduce further after 50 minutes.

F

Engine speed reduced to LOW after 30 minutes.

Controls and Operation

Tigercat 720G/724G/726G Feller Buncher

DIESEL EXHAUST FLUID QUALITY

Diesel Exhaust Fluid Quality warning severe. Engine lockout will occur after full torque derate and 3 engine restarts.

This message will be displayed, alarm light will flash and alarm will sound when a diesel fluid quality problem is detected. Take immediate action to correct the problem to avoid affecting engine performance and damage to the aftertreatment system components.

WARNING Use only diesel exhaust fluid (DEF) which meets ISO 22241 specifications. DO NOT fill the DEF tank with any other fluid.

DEF is injected into the exhaust gas stream during normal operation of the Selective Catalytic Reduction (SCR) aftertreatment system.

Use of other fluids may cause component damage, or a fire risk which could result in death or serious injury.

This message results in the following derate and engine lockout sequence if no action is taken to correct the problem: 1. Beginning approximately 50 minutes after a Diesel Exhaust Fluid – Quality warning severe message, engine speed ramps down to 1320 rpm and engine torque reduces to 35% of rated torque over the next 40 minutes.

2. After operating two hours at derated engine speed and torque, engine speed reduces to LOW and engine torque reduces to its minimum value over the next 30 minutes.

A total of three restarts are allowed after any derate has started. Refer to COMPUTER – MESSAGES– CRITICAL – ENGINE LOCKED OUT and COMPUTER – MESSAGES– CRITICAL – ENGINE RESTARTS REMAINING UNTIL ENGINE LOCKOUT in THIS SECTION. To correct the DEF quality problem, clean the area around the DEF tank then drain and refill the tank with clean DEF which meets ISO 22241 specifications.

Additional messages from the DENOX 2.2 Module will also be displayed. Refer to the ENGINE OPERATION AND MAINTENANCE MANUAL for code information.

NOTE: An ENGINE TORQUE DERATE ACTIVE message will also be triggered as the engine begins to derate. Refer to COMPUTER – MESSAGES– ALERTS– ENGINE TORQUE DERATE ACTIVE. Refer to DIESEL EXHAUST FLUID TANK – DRAINING AND CLEANING in SECTION 3.

Refer also to AFTERTREATMENT SYSTEM in SECTION 3 for more information regarding the use of DEF and its function in the aftertreatment system.

2.68

Tigercat 720G/724G/726G Feller Buncher ENGINE STARTS REMAINING UNTIL ENGINE LOCKOUT

Controls and Operation ENGINE LOCKED OUT

Engine

Engine

Engine locked out. Engine derate to 0% Torque and 850 rpm. Contact Dealer.

3 restarts remaining until engine lockout.

This message will be displayed, alarm warning light will flash and alarm will sound to inform the operator of the number of restarts available before the engine is locked out.

Note that an engine is locked out after several other critical aftertreatment system messages regarding the cause of the problem and this message regarding the number of restarts until engine lockout.

Refer to COMPUTER – MESSAGES– CRITICAL – ENGINE LOCKED OUT in THIS SECTION.

This message will be displayed, alarm warning light will flash and alarm will sound when an engine is locked out by the computer system to prevent further damage to the engine and aftertreatment system.

Note that an engine is locked out after several other critical aftertreatment system messages regarding the cause of the problem and additional messages regarding the number of restarts until engine lockout.

Once locked out the engine will only operate at LOW speed. The original cause(s) of the lockout must be corrected before the engine can be reset. Contact dealer to reset engine lockout for normal operation.

Refer to ENGINE OPERATION AND MAINTENANCE MANUAL. Refer to COMPUTER – MESSAGES– CRITICAL – ENGINE RESTARTS REMAINING UNTIL ENGINE LOCKOUT in THIS SECTION.

2.69

Controls and Operation

Tigercat 720G/724G/726G Feller Buncher

AFTERTREATMENT SYSTEM ENGINE IDLE TOO LONG

Aftertreatment System Engine idle too long. Shutdown engine to prevent damage to emission control system.

This message will be displayed, alarm light will flash and alarm will sound when this engine has idled for more than one hour. Shutdown engine to prevent damage to the emission control system.

IMPORTANT! Engine should not idle longer than one hour.

Damage to the emission control system will result.

When this machine idles for an extended period excess hydrocarbon buildup is created in the SCR aftertreatment system. Burn off of excess hydrocarbon at full load immediately after a long idle period will generate excess heat which will cause damage to emission control system components. It will take 45 minutes at 40% load (or an SCR exhaust outlet temperature of 320°C (608°F) to burn off the hydrocarbon that accumulates during a long idle.

2.70

Tigercat 720G/724G/726G Feller Buncher

Controls and Operation

ERROR MESSAGES (RED) Error messages advise the operator that a critical machine fault is about to occur or a system fault has occurred.

Error messages are computer system generated and are generally triggered by computer system error and fault related conditions.

Error messages have the second highest level of priority and are used to alert the operator to take immediate action to prevent damage to machine or to ensure operator safety.

Error messages are activated when a fault such as an electrical connection is broken/disconnected. Most error messages are due to computer system hardware or connection faults.

A list of some types of ERROR MESSAGES is as follows: Module VREF Error Voltage Input Error (VIN)

When an error message is displayed, the master alarm and alarm light will sound and flash continuously. The message remains on the screen until the operator hides it.

Digital Input Error (DIN)

The message will give brief details of the fault and advise what action is necessary.

Module No Contact Error

In some instances the machine requires immediate action to correct the problem which requires the operator to stop machine operation, shut the engine off and service the machine to correct the problem.

Digital Output Error (DOUT) Current Output Error (COUT) NOTE: Not all error messages are shown.

However, if the machine cannot be stopped immediately for safety reasons, the operator can hide the message.

In this instance the machine should only be operated long enough to move the machine to a safe location then stop machine operation and shut the engine off before serious machine damage can occur!

Messages are acknowledged by pressing the F2 button (OK). To recall active messages turn ignition key switch off and on. On screen messages will indicate to the operator that an active hardware fault has been hidden.

Error messages flash the Critical symbol or the Alert above the F4 button when active messages are hidden depending on the type of error message. The symbol will continue to flash until the problem is resolved and the fault becomes inactive.

Active messages that have been hidden can be reviewed by pressing the F4 button.

2.71

Controls and Operation

Tigercat 720G/724G/726G Feller Buncher

MODULE VREF ERROR The module VREF message will be displayed to indicate a problem related to the 5V reference signal coming from the module.

MD3 VREF error

The module is identified on the display screen.

This message indicates a problem with a sensor, connecting wires or the 5V reference signal itself.

Once acknowledged this message will be replaced with a hardware fault message for the corresponding module when active faults are recalled to the screen. Refer to HARDWARE FAULT in THIS SECTION.

XA2-A0 - Module 1– Cab VREF error

XA2-A1 - Module 2– Rear Chassis VREF error

2.72

Tigercat 720G/724G/726G Feller Buncher VOLTAGE INPUT ERROR (VIN)

Air Intake Sensor VIN Low error

Controls and Operation CURRENT OUTPUT ERROR (COUT) Current output error messages will be displayed to indicate a problem with a current output signal from a computer system module.

The module and pin number are identified on the display screen.

The heading identifies the signal destination and the text indicates the type of error.

The display is similar to the voltage input error message shown in VOLTAGE INPUT ERROR (VIN) on this page.

Voltage input error messages will be displayed to indicate a problem with a voltage input signal to a computer system module.

The module and pin number are identified on the display screen.

Once acknowledged these message will be replaced with a hardware failure message for the corresponding module when active faults recalled to the screen. Refer to COMPUTER–MESSAGES–CRITICAL–HARDWARE FAULT in THIS SECTION.

COMPUTER MODULE BLANK SCREEN

The heading identifies the signal source and the text indicates the type of error.

An example of a voltage input error message is shown above.

DIGITAL INPUT ERROR (DIN) Digital input error messages will be displayed to indicate a problem with a digital input signal to a computer system module.

The module and pin number are identified on the display screen.

The heading identifies the signal source and the text indicates the type of error.

The display is similar to the voltage input error message shown in VOLTAGE INPUT ERROR (VIN) on this page.

DIGITAL OUTPUT ERROR (DOUT) Digital output error messages will be displayed to indicate a problem with a digital output signal from a computer system module.

The computer module is the central unit in the computer control system, which works as both a master and a display unit. Faults or failure in this unit will affect all other computer components.

The module and pin number are identified on the display screen.

Likely causes are:

The heading identifies the signal destination and the text indicates the type of error.

• Ground

The display is similar to the voltage input error message shown in VOLTAGE INPUT ERROR (VIN) on this page.

• Faulty computer

• Power – Fuse (Computer) • LCD display settings too light to read

2.73

Controls and Operation

Tigercat 720G/724G/726G Feller Buncher

MODULE NO CONTACT ERROR The module no contact error message will be displayed to indicate a loss of communication with or power to a module. The module is identified on the display screen.

XA2-A0 - Module 1– Cab No contact

When a module loses contact all machine functions controlled by that module cease and all messages associated with that module are triggered. If the problem is with the CAN wires all modules beyond the problem module will also be affected.

NOTE: If the display has a loss of power or other malfunction the screen may go blank and all machine functions controlled by the computer system will be affected.

Once acknowledged this message will be replaced with a hardware fault message for the corresponding module when active faults are recalled to the screen. Refer to COMPUTER – MESSAGES– CRITICAL – HARDWARE FAULT in THIS SECTION.

XA2-A1 - Module 2– Rear Chassis No contact

Tigercat/FPT NEF No contact

2.74

Tigercat 720G/724G/726G Feller Buncher

Controls and Operation

ALERT MESSAGES (YELLOW) Alert messages advise the operator that machine operation will be compromised.

Alert messages have the third highest level of priority and are used to indicate to the operator that action is required to prevent future damage to the machine.

All alert message will give brief details of the fault and advise what action is necessary.

Action should be taken to service the machine to correct the problem at the earliest opportunity to prevent future damage to the machine.

Alert messages flash the alert symbol above the F4 button when active messages are hidden.

The message remains on the screen until the operator hides it.

Active messages that have been hidden can be reviewed by pressing the F4 button. The symbol will continue to flash until the problem is resolved and the fault becomes inactive.

If both a critical level fault and an alert level fault are present the critical symbol will take priority until the critical fault becomes inactive.

There are two types of alert messages: 1. Alert programmed messages. The messages are generally initiated by machine function related conditions.

2. Alert computer system messages. These messages which are generally initiated by computer system errors and fault related conditions.

NOTE: Active hardware fault alert messages are acknowledged by pressing the F2 button (OK). To recall these messages turn ignition key switch off and on. On screen messages will indicate to the operator that an active hardware fault has been hidden.

When an alert message is displayed, the audible alarm and warning light will sound and flash on and off three times alerting the operator of the message. The alert message remains on the screen until the operator hides it.

Messages can be hidden by pressing the F2 button (Hide).

Alert computer system generated messages are generally triggered by computer system error and fault related conditions.

2.75

Controls and Operation INTERACTIVE ALERT MESSAGES

Tigercat 720G/724G/726G Feller Buncher ENGINE AIR INTAKE FILTER RESTRICTED

A list of ALERT MESSAGES is as follows: • Engine Air Intake Filter Restricted • Drive Charge Filter Bypassed

Engine Air Intake Filter

• Fire Detection System Malfunction

Restricted. Service Machine to correct.

• Main Fuel Filter Clogged • Machine Voltage Low • Machine Voltage High • Engine Fault Code Messages • Engine Voltage Low • Engine Voltage High • Engine Coolant Temperature High • Engine Idle Automatically Increased • Fuel Level Low • Water In Fuel • Engine Torque Derate Active

This message will be displayed when a signal is received from the air filter restriction sensor on the engine air cleaner.

When this happens the engine air cleaner requires immediate service.

Refer to AIR INTAKE SYSTEM– AIR CLEANER in SECTION 3.

DRIVE CHARGE FILTER BYPASS

• Hardware Fault – MD3 (Computer) • Hardware Fault – Module XA2-A0 • Hardware Fault – Module XA2-A1

Drive Charge Filter

• Hardware Fault – Voltage Input

Bypassed. Service machine to correct.

• Hardware Fault – Digital Input • Hardware Fault – Current Output • Hardware Fault – Digital Output • Diesel Exhaust Fluid Quality * • Diesel Exhaust Fluid Level <10% * • Diesel Exhaust Fluid Level <5% * • Diesel Exhaust Fluid Level Empty * * NOTE: The aftertreatment system and its related components are applicable to Tier 4f machines only.

SOME TYPES OF COMPUTER SYSTEM GENERATED ALERT MESSAGES ARE LISTED BELOW: • Module High Temperature – Alert • Module High Supply Voltage – Alert

This message will be displayed when an oil flow restriction in excess of 50 psi (3.5 bar) is encountered at the hydrostatic drive charge filter. This pressure build up also opens the filter bypass valve in the filter head allowing oil to bypass the filter element.

When this happens the filter requires immediate service.

If alarm will sound during cold start-ups, the engine speed should be reduced and the warm up procedure continued. Note that the bypass message will only be displayed when hydraulic oil temperature is above 85°F (29°C) and the filter is in bypass mode.

• Module Low Supply Voltage – Alert

2.76

Tigercat 720G/724G/726G Feller Buncher

Controls and Operation

FIRE DETECTION SYSTEM MALFUNCTION

MACHINE VOLTAGE LOW

Fire Detection System

Machine Voltage

Malfunction. System will not detect fire. Repair system immediately.

Low. Service machine to correct.

This message will be displayed when an alert level malfunction is detected in the fire detection system

This message will be displayed when machine voltage readings of less than 20 volts are detected.

Refer to FIRE DETECTION SYSTEM in THIS SECTION for more information.

Machine voltage readings indicate voltage levels in the electrical system.

Refer also to WHAT TO DO IN CASE OF A MACHINE FIRE and WHAT TO DO AFTER A FIRE in SECTION 1.

When this alarm is activated investigate the cause immediately.

MAIN FUEL FILTER CLOGGED

MACHINE VOLTAGE HIGH

Main Fuel Filter

Machine Voltage

Clogged. Replace filter to prevent engine derate.

High. Service machine to correct.

This message will be displayed when a main fuel filter clog is detected.

This message will be displayed when machine voltage readings of greater than 30 volts are detected.

Replace engine fuel filter to prevent engine derate.

Refer to ENGINE OPERATION AND MAINTENANCE MANUAL for engine fuel filter replacement instructions

Machine voltage readings indicate voltage levels in the electrical system.

When a fuel filter clog continues for more than 5 minutes a critical message will be shown and the engine will immediately begin to derate. Refer to COMPUTER – MESSAGES– CRITICAL – MAIN FUEL FILTER CLOGGED- ENGINE DERATE in THIS SECTION.

When this alarm is activated investigate the cause immediately.

2.77

Controls and Operation ENGINE FAULT CODE MESSAGES

Tigercat 720G/724G/726G Feller Buncher ENGINE VOLTAGE LOW

SPN: ##### 1 of 1

SPN: 8801 1 of 1

Contact service.

Engine voltage low.

Alert engine fault message(s) will be displayed, alarm light will flash and alarm will sound when an alert engine fault message is received from the engine electronic control module.

They provide the SPN code (suspect parameter number) and the FMI code (fault mode identifier) as well as a message describing the fault (when available).

This message will be displayed when engine voltage readings of less than 22 volts are detected.

When this alarm is activated investigate the cause immediately.

ENGINE VOLTAGE HIGH

Alert engine fault codes are lower priority messages than critical level engine fault code messages. Alert messages can be hidden but action (service engine) is required to resolve the cause of the fault.

SPN: 4449 1 of 1 Engine voltage high.

NOTE: Some less common engine fault codes will appear without a message describing the fault. Make a note of the SPN code and contact service for more information.

Refer to ENGINE OPERATION AND MAINTENANCE MANUAL for specific information regarding the engine.

This message will be displayed when engine voltage readings of greater than 30 volts are detected.

When this alarm is activated investigate the cause immediately.

2.78

Tigercat 720G/724G/726G Feller Buncher

Controls and Operation

ENGINE COOLANT TEMPERATURE HIGH

ENGINE IDLE AUTOMATICALLY INCREASED

SPN: 62755 1 of 1

Engine Speed

Engine coolant temperature high.

Automatically increased to prevent damage to the emission control system.

This message will be displayed, the alarm light will flash and the alarm will sound when engine temperature exceeds recommended engine temperature.

This message will be displayed when a malfunction of the emission control (aftertreatment) system is detected.

When this alarm is activated investigate the cause immediately.

Investigate cause as soon as possible.

When this alarm is activated check for: • Plugged cooler package air intake screens in doors and access panels.

• Plugged radiator.

Refer to COOLER PACKAGE, CLEANING in SECTION 3.

Refer to COMPUTER – MESSAGES – CRITICAL – ENGINE COOLANT TEMPERATURE HIGH in THIS SECTION.

2.79

Controls and Operation FUEL LEVEL LOW

Tigercat 720G/724G/726G Feller Buncher ENGINE TORQUE DERATE ACTIVE

Fuel

SPN: 64911 1 of 1

Level low.

Engine torque derate active.

This message will be displayed when the fuel level falls below 5% of full.

The fuel icon changes from white to yellow when the fuel level is low.

Refer to REFUELLING PROCEDURE in SECTION 3.

WATER IN FUEL

This message will be displayed, alarm light will flash and alarm will sound when the engine ECU has derated the engine. The code for a Torque Derate due to high NOx is shown above as an example.

Refer to ENGINE OPERATION AND MAINTENANCE MANUAL for code information to identify the cause(s) of engine derating and more information regarding failure cause and repair.

SPN: 17429 1 of 1 Water in fuel.

This message will be displayed when water is detected in the fuel.

When this alarm is activated check the fuel filter/water separator.

2.80

Tigercat 720G/724G/726G Feller Buncher HARDWARE FAULT – MD3 (COMPUTER)

Controls and Operation HARDWARE FAULT – XA2-A1

Hardware Fault - MD3

Hardware Fault - XA2-A1

Active fault has been hidden. Turn key off and on to recall active hidden hardware faults.

Active fault has been hidden. Turn key off and on to recall active hidden hardware faults.

This message will be displayed when an alert level active hardware fault related to the computer has been hidden.

This message will be displayed when an alert level active hardware fault related to the XA2-A1 expansion module has been hidden.

To recall the original active fault(s) the operator must turn the ignition key switch OFF and ON.

To recall the original active fault(s) the operator must turn the ignition key switch OFF and ON.

High temperature, low supply voltage and high supply voltage module alert messages are examples of the type of hardware fault which will be the original active faults which trigger this message.

High temperature, low supply voltage and high supply voltage module alert messages are examples of the type of hardware fault which will be the original active faults which trigger this message.

HARDWARE FAULT – XA2-A0

Hardware Fault - XA2-A0 Active fault has been hidden. Turn key off and on to recall active hidden hardware faults.

This message will be displayed when an alert level active hardware fault related to the XA2-A0 expansion module has been hidden.

To recall the original active fault(s) the operator must turn the ignition key switch OFF and ON. High temperature, low supply voltage and high supply voltage module alert messages are examples of the type of hardware fault which will be the original active faults which trigger this message.

2.81

Controls and Operation HARDWARE FAILURE – VOLTAGE INPUT

Tigercat 720G/724G/726G Feller Buncher HARDWARE FAILURE – CURRENT OUTPUT

Hardware Failure - VIN

Hardware Failure - COUT

Active fault has been hidden. Turn key off and on to recall active hidden hardware faults.

Active fault has been hidden. Turn key off and on to recall active hidden hardware faults.

This message will be displayed when a voltage input error message has been hidden.

This message will be displayed when a current output error message has been hidden.

To recall the original active fault(s) turn the ignition key OFF and ON.

To recall the original active fault(s) turn the ignition key OFF and ON.

HARDWARE FAILURE – DIGITAL INPUT

HARDWARE FAILURE – DIGITAL OUTPUT

Hardware Failure - DIN

Hardware Failure - DOUT

Active fault has been hidden. Turn key off and on to recall active hidden hardware faults.

Active fault has been hidden. Turn key off and on to recall active hidden hardware faults.

This message will be displayed when a digital input error message has been hidden.

This message will be displayed when a digital output error message has been hidden.

To recall the original active fault(s) turn the ignition key OFF and ON.

To recall the original active fault(s) turn the ignition key OFF and ON.

2.82

Tigercat 720G/724G/726G Feller Buncher

Controls and Operation

MODULE HIGH TEMPERATURE – ALERT

MD3

Module high temperature alert message is displayed to indicate that the computer control system has detected high temperature readings in a system module.

Display High temperature

The module is identified on the display screen. The temperature reading value is also displayed.

Once acknowledged this message will be replaced with a hardware fault message for the corresponding module when active faults are recalled to the screen. Refer to COMPUTER – MESSAGES – ALERT – HARDWARE FAULT in THIS SECTION.

Value: 75° C

XA2-A0

XA2-A0 - Module 1– Cab High temperature

Value: 75° C

XA2-A1

XA2-A1 - Module 2– Rear Chassis High temperature

Value: 75° C

2.83

Controls and Operation

Tigercat 720G/724G/726G Feller Buncher

MODULE HIGH SUPPLY VOLTAGE – ALERT

MD3

Module high supply voltage alert message is displayed to indicate that the computer control system has detected high supply voltage readings in a system module.

Display High supply voltage

The module is identified on the display screen. The voltage reading value is also displayed.

Once acknowledged this message will be replaced with a hardware fault message for the corresponding module when active faults are recalled to the screen. Refer to COMPUTER – MESSAGES – ALERT – HARDWARE FAULT in THIS SECTION.

Value: 34 V

XA2-A0

XA2-A0- Module 1 – Cab High supply voltage

Value: 75° C

XA2-A1

XA2-A1- Module 2 – Rear Chassis High supply voltage

Value: 34 V

2.84

Tigercat 720G/724G/726G Feller Buncher

Controls and Operation

MODULE LOW SUPPLY VOLTAGE – ALERT

MD3

Module low supply voltage alert message is displayed to indicate that the computer control system has detected low supply voltage readings in a system module.

Display

The module is identified on the display screen.

Low supply voltage

Once acknowledged this message will be replaced with a hardware fault message for the corresponding module when active faults are recalled to the screen. Refer to COMPUTER – MESSAGES – ALERT – HARDWARE FAULT in THIS SECTION. XA2-A0

XA2-A0- Module 1 – Cab Low supply voltage

XA2-A1

XA2-A1- Module 2 – Rear Chassis Low supply voltage

2.85

Controls and Operation THE AFTERTREATMENT SYSTEM AND ITS RELATED COMPONENTS ARE APPLICABLE TO TIER 4F MACHINES ONLY.

DIESEL EXHAUST FLUID QUALITY

Tigercat 720G/724G/726G Feller Buncher Refer to DIESEL EXHAUST FLUID TANK – DRAINING AND CLEANING in SECTION 3.

Refer also to AFTERTREATMENT SYSTEM in SECTION 3 for information regarding the use of DEF and its function in the aftertreatment system.

SPN: 19658

SPN: 19402

DEF quality low.

DEF quality low.

This message will be displayed, alarm light will flash and alarm will sound when a diesel fluid quality problem is detected. Take immediate action to correct the problem to avoid affecting engine performance and damage to the aftertreatment system components.

This message results in the following derate and engine lockout sequence if no action is taken to correct the problem: 1. Beginning approximately 50 minutes after a DEF quality low message, engine speed ramps down to 1320 rpm and engine torque reduces to 35% of rated torque over the next 40 minutes.

2. After operating for two hours at derated engine speed and torque, engine speed reduces to LOW and engine torque reduces to its minimum value over the next 30 minutes.

WARNING Use only diesel exhaust fluid (DEF) which meets ISO 22241 specifications. DO NOT fill the DEF tank with any other fluid.

DEF is injected into the exhaust gas stream during normal operation of the Selective Catalytic Reduction (SCR) aftertreatment system.

Use of other fluids may cause component damage, or a fire risk which could result in death or serious injury.

A total of three restarts are allowed after any derate has started. Refer to COMPUTER – MESSAGES– CRITICAL – ENGINE LOCKED OUT and COMPUTER – MESSAGES– CRITICAL – ENGINE RESTARTS REMAINING UNTIL ENGINE LOCKOUT in THIS SECTION. To correct the DEF quality problem, clean the area around the DEF tank then drain and refill the tank with clean DEF which meets ISO 22241 specifications.

Additional messages from the DENOX 2.2 Module will also be displayed. Refer to ENGINE OPERATION AND MAINTENANCE MANUAL for code information.

NOTE: An ENGINE TORQUE DERATE ACTIVE message will also be displayed as the engine begins to derate. Refer to COMPUTER – MESSAGES– ALERTS– ENGINE TORQUE DERATE ACTIVE.

2.86

T4f Engine derate – poor DEF quality

Tigercat 720G/724G/726G Feller Buncher

Controls and Operation

DIESEL EXHAUST FLUID QUALITY – ENGINE DERATE SEQUENCE 100%

B

A ≈ 50 MIN.

90% 80%

≈ 40

70%

TORQUE

M I N.

60% 50% 40%

D

30%

≈ 120 MIN.

C

≈ 30

20%

MIN

0%

.

10%

E

0

1000009

A Alert Message: Poor DEF quality detected.

B Engine torque begins to reduce.

C Engine torque reduced to 35% after 40 minutes.

120

60

180

240

300

MINUTES

D Engine torque begins to reduce further after 120 minutes.

E Engine speed reduced to LOW after 30 minutes.

2.87

Controls and Operation DIESEL EXHAUST FLUID LEVEL There are three levels of diesel exhaust fluid level messages generated by the DENOX 2.2 Module.

DIESEL EXHAUST FLUID LEVEL BELOW 10%

Tigercat 720G/724G/726G Feller Buncher Fill the DEF tank and restart the engine to clear the message.

Refer to DIESEL EXHAUST FLUID TANK – FILLING in SECTION 3.

DIESEL EXHAUST FLUID LEVEL EMPTY

SPN: 61839 1 of 1

SPN: 64191 1 of 1

DEF Level below 10%.

This message will be displayed, alarm light will flash and alarm will sound when a diesel exhaust fluid level below 10% is detected. Take immediate action to correct DEF levels to avoid affecting engine performance and damage to the aftertreatment system components.

The engine will continue to operate normally for approximately one hour after this message is displayed.

Fill the DEF tank and restart the engine to clear the message.

Refer to DIESEL EXHAUST FLUID TANK – FILLING in SECTION 3.

DIESEL EXHAUST FLUID LEVEL BELOW 5%

SPN: 62095 1 of 1 DEF Level below 5%.

DEF tank empty.

This message will be displayed, alarm light will flash and alarm will sound when diesel exhaust fluid level empty is detected. Take immediate action to correct DEF levels to avoid affecting engine performance and damage to the aftertreatment system components.

Beginning immediately after a DEF tank empty message, engine speed reduces to LOW and engine torque reduces to its minimum value over the next 30 minutes.

Fill the DEF tank and restart the engine to clear the message.

Refer to DIESEL EXHAUST FLUID TANK – FILLING in SECTION 3.

NOTE: An ENGINE TORQUE DERATE ACTIVE message will also be displayed as the engine begins to derate. Refer to COMPUTER – MESSAGES– ALERTS– ENGINE TORQUE DERATE ACTIVE.

This message will be displayed, alarm light will flash and alarm will sound when a diesel exhaust fluid level below 5% is detected. Take immediate action to correct DEF levels to avoid affecting engine performance and damage to the aftertreatment system components.

Beginning immediately after a DEF Level below 5% message, engine speed ramps down to 1320 rpm and engine torque reduces to 35% of rated torque over the next 40 minutes.

2.88

T4f Engine derate – low DEF level

Tigercat 720G/724G/726G Feller Buncher

Controls and Operation

DIESEL EXHAUST FLUID LEVEL – ENGINE DERATE SEQUENCE 100% 90%

A

≈ 60 MIN.

B

80% 70% ≈ 40 MIN

60%

.

TORQUE

50% 40% ≈ 20 MIN.

30%

C

D 0M

≈3

20%

1000008

.

0%

IN

10% <10%

<5%

≈ 1.8%

E

0

DEF LEVEL

A Alert Message: DEF Level Below 10%.

B Alert Message: DEF Level Below 5%. Engine torque begins to reduce.

C Engine torque reduced to 35% after 40 minutes.

2.89

D DEF tank empty. Engine speed begins to reduce to LOW. E Engine speed reduced to LOW after 30 minutes.

Controls and Operation

Tigercat 720G/724G/726G Feller Buncher

BATTERY BOOSTING NOTICE A

This machine has a 24 volt starting system. Only use the same voltage when boosting with an auxiliary battery. Using a higher or lower voltage will cause serious damage to the electrical system. Only a compatible (same) voltage is permissible.

B

700081

A Negative Terminal (Upper Battery) B Positive Terminal (Lower Battery)

A B

4. Open the battery disconnect door or remove the battery compartment panel and locate the positive (+) terminal on the lower battery and the negative (– ) battery terminal on the upper battery.

5. Remove the protective covers from the battery terminals.

6. Connect the clamp of the red jumper cable to the positive (+) terminal of the dead (lower) battery.

700076

7. Connect the other clamp of the red jumper cable to the positive (+) terminal of the good battery.

724G-128

A Battery Disconnect Door B Battery Compartment Panel

The batteries are located in the battery compartment at the left rear corner of the machine. Remove he battery compartment panel for complete access to the batteries.

BATTERY BOOSTER CABLE WITH CLAMPS 1. Bring the machines as close as possible, make sure the machines do not touch.

WARNING 24 VOLT ELECTRICAL SYSTEM 2. Make sure the machine with the good battery uses a 24 volt system.

3. Turn OFF the ignition of both machines.

8. Connect the clamp of the black jumper cable to the negative ( – ) terminal of the good battery.

9. Connect the other clamp of the black jumper cable to the negative ( – ) terminal of the dead (upper) battery.

10. Start the engine of the machine with the good battery.

11. Start the engine of the machine with the dead batteries.

12. Disconnect the clamp of the black jumper cable from the negative ( – ) terminal of the upper battery.

13. Disconnect the clamp of the black jumper cable from the negative (-) terminal of the good battery.

14. Disconnect the clamp of the red jumper cable from the positive (+) terminal of the good battery.

15. Disconnect the clamp of the red jumper cable from the positive (+) terminal of the lower battery.

16. Replace the protective covers on the battery terminals.

If the batteries require charging, refer to BATTERY CARE in SECTION 3.

2.90

Tigercat 720G/724G/726G Feller Buncher

Controls and Operation

REFUELLING

THE AFTERTREATMENT SYSTEM AND ITS RELATED COMPONENTS ARE APPLICABLE TO TIER 4F MACHINES ONLY.

WARNING

DO NOT refuel while smoking or while near an open flame or sparks.

S≤15 mg/kg ULTRA LOW SULFUR FUEL ONLY 36686AUNI R0

Refuelling of the machine is a critical component of proper operation. It is important to follow the proper procedures based on the refuelling options available for your machine. It is also important to verify that the proper type and grade of fuel is used in your machine.

Refer to REFUELLING PROCEDURE in SECTION 3 for complete details.

IMPORTANT! DO NOT idle the engine longer than one hour.

Damage to the emission control system will result.

When this machine idles for an extended period, excess hydrocarbon buildup is created in the DOC/ SCR aftertreatment system. Burn off of excess hydrocarbon, at full load, immediately after a long idle period, generates excess heat which causes damage to emission control system components.

2.91

Controls and Operation

Tigercat 720G/724G/726G Feller Buncher

OPERATING THE MACHINE A

The appropriate lubrication and maintenance schedule must been performed prior to operating the machine.

Refer to SCHEDULED MAINTENANCE in SECTION 3.

Refer to the ENGINE OPERATION AND MAINTENANCE MANUAL supplied with the machine.

Personnel who are to operate this machine must be fully trained in safety and operating procedures by a competent person.

B

PRESTART CHECKS 1. Unlock cab doors, engine enclosure doors and rear service compartment doors.

M726E-052

A

A Charge Gauge B Fire Extinguisher

4. Check portable fire extinguisher for sufficient charge.

M726E-044

A Ignition Key Switch – OFF

2. Set the ignition key switch and the cutter switch to the OFF position.

A

A

B 724G-048

M726E-044

A Parking Brake Switch

3. Check the parking brake for proper operation and apply the parking brake.

A Fuel Level Gauge B DEF Level Indicator

5. Turn the ignition key switch to the RUN position to check fuel and DEF levels on the computer display main screen. Fill fuel and DEF to the required levels.

Refer to REFUELLING PROCEDURE and DIESEL EXHAUST FLUID TANK – FILLING in SECTION 3.

NOTE: The DEF level indicator is applicable to Tier 4f machines only.

2.92

Tigercat 720G/724G/726G Feller Buncher

Controls and Operation

A

A

700074

700044

A Hydraulic Oil Level Sight Gauge

A Pump Drive Gearbox Dipstick

6. Check the hydraulic oil level. The sight gauge is located in the left rear of the pump compartment.

The level should be between the HIGH and LOW marks on the level gauge with ALL CYLINDERS FULLY RETRACTED. Refer to REFILLING THE HYDRAULIC SYSTEM in SECTION 3.

8. Check the pump drive gearbox oil level. Dipstick is located in the left of the pump compartment.

9. The level of the oil must be between the ADD and FULL marks on the dipstick. Refer to PUMP DRIVE GEARBOX in SECTION 3.

A

A

724G-099 724G-064

A Engine Oil Dipstick

7. Check the engine oil level. Dipstick is located in the left side engine compartment.

A Transmission Oil Dipstick

10. Check the transmission oil level. Dipstick is located on right side of the machine behind the cab.

The level of the oil must be between the ADD and FULL marks on the dipstick. Refer to TRANSMISSION in SECTION 3.

The level of the oil must be between the ADD and FULL marks on the dipstick. Refer to the ENGINE OPERATION AND MAINTENANCE MANUAL.

2.93

Controls and Operation

B

Tigercat 720G/724G/726G Feller Buncher

A

A

724E-080

A Fuel Filter/Water Separator Drain Plug 724G-069

A Engine Air Precleaner B Air Filter Restriction Indicator

1. Check the engine air precleaner. Remove any blockages or obstructions. Refer to AIR INTAKE SYSTEM– ENGINE AIR PRECLEANER in SECTION 3.

4. Check the fuel filter/water separator and drain any accumulated water into a bowl and clean up any spills. Refer to FILTERS– FUEL FILTER/WATER SEPARATOR in SECTION 3.

B A

2. Check the air filter restriction indicator. Service to the air filter is required when the restriction indicator shows RED. Refer to AIR INTAKE SYSTEM– AIR FILTER RESTRICTION INDICATOR in SECTION 3.

C

C 724E-088

A 700078

A Air Cleaner Unloader Valve

A Square Hole – Belt Tensioner B A/C Compressor Belt C Serpentine Belt

5. Check the condition and tension of the engine serpentine belt and the A/C compressor belt. Refer to ENGINE BELTS in SECTION 3.

3. Check the air cleaner unloader valve. The valve is located in the pump compartment at the rear of the machine.

2.94

Tigercat 720G/724G/726G Feller Buncher

Controls and Operation

A A

B

C

D

M726E-130

A Engine Coolant Fill Cap

700046

A

A B C D

Hydraulic Oil Cooler A/C Condenser Core Radiator (Engine Coolant Core) Charge Air Cooler

7. Clean the cooler package if required. Refer to COOLER PACKAGE, CLEANING in SECTION 3.

724E-105

A Engine Coolant Level Sight Glass – Surge Tank

6. Check the engine coolant level in the surge tank. Fill as required. Coolant level must be visible in the sight glass.

A

NOTE: A low level sensor warns the operator if the coolant level falls below an acceptable level.

WARNING Turn OFF the engine. Only remove the engine coolant fill cap when cool enough to touch with bare hands. Slowly loosen the fill cap to the first stop to relieve the pressure before removing completely.

B 196-9A

A Air Charge Valve B Pressure Gauge

8. Check pressurized water tank pressure gauge, located on the left side of the seat base.

2.95

Controls and Operation

Tigercat 720G/724G/726G Feller Buncher

A

A

SAW-26

B

B SAW-P03

A Saw Tooth B Saw Tooth Retaining Bolt

1. Check all of the fasteners retaining the disc saw teeth and tighten them to the proper torque level.

SAW-27

A Stress Cracks around Saw Hub B Stress Cracks

6. Inspect the disc for stress cracks and the disc does not wobble due to worn saw shaft bearings.

A

SAW-23

A

A Saw Tooth

2. Replace all worn disc saw teeth or rotate worn teeth to align fresh cutting tips.

NOTE: Replace the tooth fastener whenever replacing a saw tooth.

3. Inspect the cutting disc for stress cracks.

4. Check that the cutting disc does not wobble due to worn saw shaft bearings.

A

B

SAW-25

A Saw Housing Damage

7. Check the saw housing is clear and undamaged.

Turn OFF the machine immediately if you feel a vibration when the cutting disc is running.

8. Inspect machine for leaks, damaged or loose components or any other abnormal conditions.

9. Fasten all doors covers and access panels securely.

10. Check tire pressure. Refer to TIRE PRESSURES in SECTION 3.

11. Check wheel bolts for tightness.

12. Check all exits.

SAW-24

A Missing Saw Tooth B Damaged Saw Tooth

13. Inspect all windows daily and immediately after any impacts. Refer to WINDOWS – INSPECTION AND MAINTENANCE in SECTION 3.

5. Never start or use a machine if the disc saw has missing teeth, missing teeth fasteners or a bent disc.

2.96

Tigercat 720G/724G/726G Feller Buncher

Controls and Operation

STARTING ENGINE

CAUTION

1. Perform all PRESTART CHECKS. Refer to OPERATING THE MACHINE – PRESTART CHECKS in THIS SECTION.

DO NOT attempt to start the engine by shorting across the starter terminals as personal injury could occur. Start engine only from the operator's seat.

2. Apply the parking brake.

NOTE: The engine will not crank until the parking brake is applied.

WARNING

3. Check that all personnel are clear of the machine.

4. Insert the ignition key and turn ignition key switch to the RUN position. The WAIT TO START icon below will appear on the display during the 'key ON' engine preheat time. Heating elements (grid heater elements) located in the engine air intake manifold are turned ON to heat the intake air when starting the engine. The engine must not be started until this icon automatically turns OFF.

DO NOT USE ETHER! The engine is equipped with an electrical starting aid. Use of ether can cause an explosion and severe injury.

IMPORTANT! Allow a cold engine to warm up at LOW speed for at least five minutes before applying any load. Check all measured values on the computer display often during the warm-up period.

A

2000132

A WAIT TO START Icon

5. Sound the horn to warn personnel of machine startup.

6. Turn the ignition key switch to the START position to crank the engine.

7. When the engine starts, release the ignition key switch to the RUN position.

NOTE: If the engine does not start after three attempts, check the fuel supply system.

8. Set the engine speed at LOW and wait three to five minutes before operating with a load.

9. Increase the engine speed slowly to provide adequate lubrication to the bearings and allow oil pressure to stabilize.

If the engine stalls while operating the machine, turn the ignition key switch to the OFF position and repeat steps 1 through 7.

2.97

Controls and Operation

COLD WEATHER STARTING

Tigercat 720G/724G/726G Feller Buncher 6. Activate the interlock system and turn ON the saw.

• Observe the saw blade speed has stabilized.

WARNING DO NOT USE ETHER! The engine is equipped with an electrical starting aid. Use of ether may cause an explosion and severe injury.

IMPORTANT! Cold start-ups can result in pump failure. Refer to APPROVED HYDRAULIC OILS in SECTION 3 for recommended oil viscosity and temperature ranges.

NOTE: Cold temperatures require the use of an engine block heater and a hydraulic oil heater. Preheating of hydraulic oil is recommended as standard procedure in cold weather.

1. Follow the STARTING ENGINE instructions for this COLD WEATHER STARTING procedure, paying attention to the WAIT TO START icon on the computer display.

This message will be ON during the key RUN engine preheat time. The engine must not be started until this message automatically turns OFF. NOTE: If at any time during the warming procedure, the hydraulic filter bypass message appears on the computer display, return engine speed to LOW. 2. During the engine warm-up period constantly monitor the engine coolant temperature and the engine oil pressure. Turn OFF the engine if any pressure or temperature does not meet the specification.

3. Continue with MACHINE PREPARATION – SYSTEM TEST AND WARM-UP in THIS SECTION.

• Operate the saw for approximately five minutes to warm up the spindle bearings.

7. Turn OFF the saw.

8. Increase the engine speed to 1100 rpm and begin slow boom movements.

• The hydraulic filter bypass icon must be OFF. • Operate the boom to raise the attachment off the ground.

• Operate the boom tilt function forward and back very slowly.

9. Operate the steer function left and right a few times.

10. Place the travel speed control lever in the LOW position and operate the drive function forward and reverse a few times.

11. Observe the hydraulic oil temperature. DO NOT begin any work until temperature reaches 10°C (50°F).

12. Increase the engine speed to 1500 rpm, and begin driving to the work area in LOW travel speed. Do not go to maximum travel speed until the hydraulic oil reaches 32°C (90°F). Harvesting may begin but work very slowly. The machine functions will seem to operate much slower until the systems are warmed up. Avoid operating the boom functions quickly until the hydraulic oil is above 32°C (90°F). Work the machine for thirty minutes at 1500 rpm.

13. When the hydraulic oil reaches 32°C (90°F) and the machine has been operated for 30 minutes, it is safe to increase the engine speed to HIGH.

4. Start the engine and keep engine speed at LOW. 5. Confirm all of the following conditions are present before proceeding to the next step: • Hydraulic filter bypass icon is OFF. • Engine coolant temperature reaches 60°C (140°F).

• Hydraulic oil temperature reaches −7°C (20°F).

• Cooling fan is turning.

NOTE: At a starting temperature of −18°C (0°F), it will take approximately thirty minutes to complete the above step.

2.98

Tigercat 720G/724G/726G Feller Buncher

Controls and Operation

RESTARTING AN ENGINE THAT HAS RUN OUT OF FUEL OR WHEN A FUEL FILTER HAS BEEN REPLACED 1. Fill the fuel tank completely.

2. Bleed the system according to the procedures in the ENGINE OPERATION AND MAINTENANCE MANUAL.

STOPPING ENGINE IMPORTANT! Stopping the engine immediately after it has been working under load can result in overheating and premature wear of the engine components. Follow the stopping procedure outlined below to allow the engine to cool. The important benefits are: • Extended life of engine, cooling and exhaust systems.

WARNING DO NOT USE ETHER! The engine is equipped with an electrical starting aid. Use of ether may cause an explosion and severe injury.

3. Crank the engine until it starts. If it fails to start after 20 seconds, stop and wait for two minutes before trying again.

IMPORTANT! To prevent damage to the starter, do not engage the starter motor for more than 15 – 20 seconds. Wait two minutes between each attempt to start the engine. If the engine fails to start, refer to the ENGINE OPERATION AND MAINTENANCE MANUAL.

• Reduced risk of post shutdown fires.

• Interior of machine cools significantly reducing risk of touching hot surfaces.

1. Turn the attachment OFF before leaving the cutting area.

2. Find a clear and level area, a least 15 m (50 ft) from any other equipment, to park the machine.

3. Park the machine on level ground with the attachment resting firmly on the ground.

4. Apply the parking brake.

5. Reduce the engine speed to LOW, deactivate the interlock system (open a cab door) and let the engine run at LOW speed for approximately three minutes (minimum) to allow dissipation of heat and also to reduce turbo speed. This will also prevent loss of coolant by after boil and possible hot spot damage to the engine.

Do not increase engine speed before turning it OFF. 6. Turn OFF the engine.

7. Remove the ignition key.

NOTE: For Tier 4f machines, when the engine is stopped, all DEF solution is pumped back to tank before the engine power system is turned off. This process takes approximately 90 seconds. Refer to AFTERTREATMENT SYSTEM in SECTION 3 for more information.

NOTE: The aftertreatment system and its related components are applicable to Tier 4f machines only.

NOTE: The saw blade must be stopped before exiting the cab.

8. Install the saw blade guard.

9. Turn OFF the battery disconnect switch if required by the servicing procedure or if the vehicle is to be parked for an extended period of time, such as overnight.

10. Perform EVERY 8 HOURS maintenance at the end of the shift (greasing, clean engine compartment, etc.). This allows the machine time to cool down while under the watchful eye of the operator.

2.99

Controls and Operation

MACHINE PREPARATION SYSTEM TEST AND WARM-UP Prior to commencing operations follow steps 1 – 14 to accomplish the following:

Tigercat 720G/724G/726G Feller Buncher 12. Apply the parking brake.

13. Set engine speed at LOW. 14. Leave the cab and visually check hose connections and cylinders for leaks. Check under the machine for oil leaks.

• Warm up the hydraulic system.

WARNING

• Test all systems for proper operation.

• Inspect for hydraulic oil leaks.

IMPORTANT! If any system or function fails to respond correctly to the controls, stop the machine preparation procedure and notify a mechanic. Failure to do so may result in damage to hydraulic pumps and other components.

DO NOT leave the cab until the saw blade has stop rotating.

WARNING

1. Close the cab doors and sound horn to warn personnel of machine start-up.

2. Start the engine. Refer to STARTING ENGINE in THIS SECTION. 3. Ensure the computer display and alarm light are indicating normal operating conditions.

4. Check that all personnel are clear of the machine.

5. Press and release the interlock reset switch.

6. Increase the engine speed to 1100 rpm.

7. Slowly raise and lower the boom and check for proper operation.

8. With the attachment raised slightly off the ground:

DO NOT use your bare hand to check for fluid leaks.

Fluid leaks under pressure may not be visible.

When searching for leaks, wear work gloves and use a wrench or piece of wood to move hydraulic hoses. DO NOT grab hold of hydraulic hoses. Wear safety goggles for eye protection.

a. Operate the accumulator and clamp arms and check for proper operation. b. Tilt the attachment forward and back and check that it is operating correctly. c.

Steer the machine to the left and right.

9. When cold weather conditions exist, continue the process of warming up the hydraulic system by repeating Steps 7-8 several times. As the hydraulic system warms up, engine speed can be increased gradually to HIGH. If the RETURN OIL FILTERS BYPASS message appears on the computer display, decrease engine speed immediately and continue warming the system.

10. Turn ON the attachment. Refer to ATTACHMENT MANUFACTURER’S DOCUMENTATION and check the attachment for proper operation according to manufacturer’s instructions.

11. After completion of the warm-up and system testing, turn OFF the attachment, stop the blade and rest it on the ground.

2.100

LUBRICATION AND MAINTENANCE.................................................................................................................3

Tigercat 720G/724G/726G Feller Buncher SECTION 3 – LUBRICATION AND MAINTENANCE Read and understand the entire contents of this manual, and all manuals for any attachments or accessories associated with this machine, prior to operating or servicing this equipment.

CONTENTS – SECTION 3 A

ISSUE 4.0, JANUARY 2020

ACCESS DOORS AND COVERS............................................................................................................................ 3.24 AFTERTREATMENT SYSTEM (TIER 4F MACHINES ONLY)............................................................................... 3.55 APPROVED ANTI-SEIZE PASTES FOR SENSORS.......................................................................................... 3.78 CATALYTIC CONVERTER.................................................................................................................................... 3.75 DEF (DIESEL EXHAUST FLUID).......................................................................................................................... 3.64 DEF QUALITY SENSOR........................................................................................................................................ 3.59 DEF SUPPLY LINES, HEATED............................................................................................................................. 3.66 DEF SUPPLY MODULE......................................................................................................................................... 3.68 DENOX 2.2 DOSING SYSTEM............................................................................................................................. 3.67 DIESEL EXHAUST FLUID (DEF).......................................................................................................................... 3.64 DIESEL OXIDATION CATALYST (DOC)............................................................................................................... 3.68 DOSING MODULE (DEF INJECTOR).................................................................................................................. 3.74 EXHAUST FLAP..................................................................................................................................................... 3.67 HEATER VALVE..................................................................................................................................................... 3.66 HUMIDITY AND TEMPERATURE SENSOR........................................................................................................ 3.76 MIXER TUBE.......................................................................................................................................................... 3.74 NH3 SENSOR......................................................................................................................................................... 3.77 NOX SENSOR........................................................................................................................................................ 3.77 SYSTEM COMPONENTS– 720G.......................................................................................................................... 3.56 SYSTEM COMPONENTS– 724G AND 726G....................................................................................................... 3.57 TANK, DIESEL EXHAUST FLUID......................................................................................................................... 3.59 TEMPERATURE SENSORS................................................................................................................................. 3.76 AIR CONDITIONING SYSTEM................................................................................................................................ 3.35 CAB AIR FILTERS.................................................................................................................................................. 3.36 COMPRESSOR...................................................................................................................................................... 3.35 CONDENSER......................................................................................................................................................... 3.35 ENGINE BELTS...................................................................................................................................................... 3.38 EVAPORATOR CORE, HEATER CORE AND BLOWERS.................................................................................. 3.36 EXPANSION VALVE............................................................................................................................................... 3.36 FAN CONTROL....................................................................................................................................................... 3.39 INSPECTION.......................................................................................................................................................... 3.37 RECEIVER-DRYER............................................................................................................................................... 3.35 AIR INTAKE SYSTEM............................................................................................................................................... 3.51 AIR CLEANER........................................................................................................................................................ 3.52 AIR CLEANER UNLOADER VALVE..................................................................................................................... 3.53 AIR FILTER RESTRICTION INDICATOR............................................................................................................. 3.53 AIR FILTER RESTRICTION SENSOR................................................................................................................. 3.53 AIR INTAKE TUBING AND JOINTS...................................................................................................................... 3.51 CHANGING FILTER ELEMENTS.......................................................................................................................... 3.52 ENGINE AIR PRECLEANER................................................................................................................................. 3.51 IMPROPER SERVICING....................................................................................................................................... 3.52 OVER SERVICING................................................................................................................................................. 3.52 ANTI-CORROSION SPRAY, REMOVAL................................................................................................................ 3.103 ARTICULATION LOCK BAR..................................................................................................................................... 3.21 AXLES OIL LEVEL CHECK, FILL AND DRAIN LOCATIONS.......................................................................................... 3.89

B

Lubrication and Maintenance

Tigercat 720G/724G/726G Feller Buncher

BATTERY CARE........................................................................................................................................................ 3.43 BELTS, ENGINE........................................................................................................................................................ 3.38 BRAKE, PARKING..................................................................................................................................................... 3.85 C

CARE OF POLYCARBONATE WINDOWS............................................................................................................ 3.100 CARE OF THE MACHINE......................................................................................................................................... 3.96 CASE DRAIN STRAINER......................................................................................................................................... 3.33 CENTER JOINT LUBRICATION........................................................................................................................................................ 3.82 MAINTENANCE AND INSPECTION..................................................................................................................... 3.82 CENTER JOINT LOCK PIN...................................................................................................................................... 3.21 COMMERCIAL WOOD, WEIGHTS........................................................................................................................ 3.112 COOLER PACKAGE, CLEANING............................................................................................................................ 3.98

D

DIAGNOSTICS CONNECTION................................................................................................................................ 3.42 DIESEL EXHAUST FLUID (DEF) (TIER 4F MACHINES ONLY) DISPOSAL.............................................................................................................................................................. 3.60 HANDLING AND STORAGE................................................................................................................................. 3.65 PROPER HANDLING PRACTICES...................................................................................................................... 3.65 DIESEL EXHAUST FLUID TANK............................................................................................................................. 3.59 DEF QUALITY SENSOR........................................................................................................................................ 3.59 DRAINING AND CLEANING................................................................................................................................. 3.60 FILLING................................................................................................................................................................... 3.63 SENDING UNIT...................................................................................................................................................... 3.59 STRAINER, CLEANING......................................................................................................................................... 3.62 DRIVESHAFTS INSTALLATION....................................................................................................................................................... 3.88 LUBRICATION........................................................................................................................................................ 3.87

E

EMERGENCY EXITS.................................................................................................................................................. 3.9 ENGINE ACCESS PANELS............................................................................................................................ 3.24, 3.25 ENGINE AIR PRECLEANER.................................................................................................................................... 3.51 ENGINE DIAGNOSTICS CONNECTION................................................................................................................ 3.42

F

FILTERS CAB AIR.................................................................................................................................................................. 3.36 DEF DOSING MODULE......................................................................................................................................... 3.69 DRIVE PUMP CHARGE PRESSURE................................................................................................................... 3.33 ENGINE OIL............................................................................................................................................................ 3.44 FUEL........................................................................................................................................................................ 3.45 FUEL FILTER/WATER SEPARATOR.................................................................................................................... 3.46 HYDRAULIC OIL RETURN.................................................................................................................................... 3.31 SERVICING GUIDELINES.................................................................................................................................... 3.31 FIRE PREVENTION.................................................................................................................................................. 3.10 FLUID ANALYSIS PROGRAM FLUID ANALYSIS KITS............................................................................................................................................ 3.6 FLUID SAMPLE COLLECTION PROCEDURES................................................................................................... 3.7 FUEL HEATER........................................................................................................................................................... 3.48 FUEL, REFUELLING................................................................................................................................................. 3.50 FUEL TANK................................................................................................................................................................ 3.48 CAPACITY............................................................................................................................................................... 3.48 FUEL FILL CAP...................................................................................................................................................... 3.48 FUEL FILL STRAINER, REMOVAL AND CLEANING.......................................................................................... 3.48 FUSES AND RELAYS BATTERY COMPARTMENT.................................................................................................................................. 3.41 CAB......................................................................................................................................................................... 3.40

G

3.2

Tigercat 720G/724G/726G Feller Buncher

Lubrication and Maintenance

GRAFFITI REMOVAL.............................................................................................................................................. 3.102 H

HEATER, FUEL.......................................................................................................................................................... 3.48 HYDRAULIC OIL HAND FILL PUMP....................................................................................................................... 3.29 HYDRAULIC OIL OPERATING RANGE CHART.................................................................................................... 3.20 HYDRAULIC OIL TANK............................................................................................................................................. 3.28 LOW LEVEL SENDING UNIT................................................................................................................................ 3.28 OIL LEVEL SIGHT GAUGE................................................................................................................................... 3.28 RETURN DIFFUSER/STRAINER......................................................................................................................... 3.34 TEMPERATURE SENDING UNIT......................................................................................................................... 3.28 HYDRAULIC SYSTEM.............................................................................................................................................. 3.27 CASE DRAIN STRAINER...................................................................................................................................... 3.33 FILTER CHANGE PROCEDURE.......................................................................................................................... 3.32 FILTER RESTRICTION PRESSURE SWITCH.................................................................................................... 3.31 FILTER SERVICING GUIDELINES...................................................................................................................... 3.31 FILTERS, HYDRAULIC OIL RETURN.................................................................................................................. 3.31 REFILLING.............................................................................................................................................................. 3.30

L

LUBRICATION AND SERVICE POINTS.................................................................................................................. 3.19

N

NEW MACHINE MAINTENANCE FIRST 125 HOUR INSPECTION REPORT............................................................................................................ 3.5 INITIAL PRE-DELIVERY INSPECTION................................................................................................................. 3.5 TIGHTENING POINTS............................................................................................................................................. 3.5

O

OIL LOST FROM LEAKAGE....................................................................................................................................... 3.8

P

PARKING BRAKE...................................................................................................................................................... 3.85 CHECKING OIL LEVEL......................................................................................................................................... 3.86 DRAINING AND REFILLING................................................................................................................................. 3.86 PRESSURE AND SPEED SETTINGS SAW....................................................................................................................................................................... 3.104 SHEAR.................................................................................................................................................................. 3.105 PRESSURE WASHING............................................................................................................................................. 3.97 PRESSURIZED WATER SYSTEM MAINTENANCE.............................................................................................. 3.79 PREVENTIVE MAINTENANCE SCHEDULE............................................................................................................ 3.5 PUMP DRIVE GEARBOX CHECKING OIL LEVEL......................................................................................................................................... 3.84 DRAINING AND REFILLING................................................................................................................................. 3.84

R

REFILLING THE HYDRAULIC SYSTEM................................................................................................................. 3.30 REFRIGERANT SPECIFICATION........................................................................................................................... 3.35 REFUELLING PROCEDURE................................................................................................................................... 3.50

S

SCHEDULED MAINTENANCE GENERAL................................................................................................................................................................. 3.8 FREQUENTLY........................................................................................................................................................ 3.11 8 HOURS................................................................................................................................................................. 3.13 48 HOURS............................................................................................................................................................... 3.13 250 HOURS............................................................................................................................................................. 3.14 500 HOURS............................................................................................................................................................. 3.14 1000 HOURS........................................................................................................................................................... 3.15 2000 HOURS........................................................................................................................................................... 3.16 2 YEARS................................................................................................................................................................. 3.17 SEASONAL............................................................................................................................................................. 3.17 3.3

Lubrication and Maintenance

Tigercat 720G/724G/726G Feller Buncher

SERVICE AND LUBRICATION POINTS.................................................................................................................. 3.19 STARTUP PROCEDURE AFTER MAJOR MACHINE MAINTENANCE................................................................ 3.93 STRAINERS CASE DRAIN.......................................................................................................................................................... 3.33 FUEL TANK............................................................................................................................................................. 3.49 HYDRAULIC OIL RETURN.................................................................................................................................... 3.34 T

TIRE PRESSURES..................................................................................................................................................3.111 TORQUE CHART, GENERAL................................................................................................................................. 3.107 TORQUE CHART, SPECIFIC................................................................................................................................. 3.106 TORQUE, FLUID CONNECTIONS.............................................................................................................3.108, 3.110 TOWING INSTRUCTIONS....................................................................................................................................... 3.22 TRANSMISSION CHECKING OIL LEVEL......................................................................................................................................... 3.83 DRAINING AND REFILLING................................................................................................................................. 3.83 TRAVEL SPEED CONTROL LEVER ADJUSTMENT............................................................................................. 3.92

W

WINDOWS............................................................................................................................................................... 3.100 CARE OF POLYCARBONATE WINDOWS........................................................................................................ 3.100 CAUTIONS........................................................................................................................................................ 3.102 CLEANING INSTRUCTIONS........................................................................................................................... 3.101 CONCEALING HAIRLINE SCRATCHES........................................................................................................ 3.102 FIRE PRECAUTIONS....................................................................................................................................... 3.102 GRAFFITI REMOVAL........................................................................................................................................ 3.102 INSPECTION AND MAINTENANCE............................................................................................................... 3.100 RESISTANCE TO CHEMICALS....................................................................................................................... 3.101 RESISTANCE TO WATER................................................................................................................................ 3.101 CLEANING INSTRUCTIONS FOR GLASS WINDOWS.................................................................................... 3.103

3.4

Tigercat 720G/724G/726G Feller Buncher

Lubrication and Maintenance

PREVENTIVE MAINTENANCE SCHEDULE

IMPORTANT! WHEELS: When installing wheels, remove all paint from the mating surfaces of both the wheel and the axle flange to ensure metal to metal contact.

NEW MACHINE MAINTENANCE

Refer to SECTION 8 of the SERVICE MANUAL for more information.

INITIAL PRE-DELIVERY INSPECTION Perform the initial pre-delivery inspection using tigercat form numbers 5340 and 5347: PDI and 125 hour inspection report.

WARNING

FIRST 125 HOUR INSPECTION AND SERVICE REPORT With the owner's mechanic present, perform an inspection and service according to the Tigercat form numbers 5340 and 5347: PDI and 125 hour inspection report.

WARNING, HOT FLUIDS AND HOT MACHINE SURFACES CAN CAUSE SERIOUS BURNS!

This must be completed within the first 125 hour time frame.

• Before servicing the machine, allow the engine cooling system, fuel system, exhaust system, hydraulic system and machine surfaces to cool down.

IMPORTANT! To qualify for continued warranty, this report must be completed and returned to Tigercat Industries Inc. Warranty department.

• Use a thermometer to check surface and system temperatures to verify it is safe to begin service work.

TIGHTENING POINTS All hydraulic connections

• DO NOT begin service work until the surface or system temperature has cooled down to below 38°C (100°F)!

Hose clamps Center joint pin securing bolts Transmission securing bolts

CAUTION

Engine mounting bolts

All handles, steps and platforms must be kept free of grease, oil, fuel mud, snow ice and forest debris to prevent risk of personal injury.

Pump drive gearbox mounting bolts Axle mounting bolts Wheel retaining bolts Cab securing bolts Pin retainers Any other loose nuts, bolts or fittings NOTE: Use of filters other than genuine Tigercat replacement filters is not recommended.

Refer to ENGINE OPERATION AND MAINTENANCE MANUAL and ATTACHMENT MANUFACTURER'S DOCUMENTATION for additional required maintenance at this scheduled time period.

3.5

Lubrication and Maintenance

Tigercat 720G/724G/726G Feller Buncher

TIGERCAT FLUID ANALYSIS PROGRAM

TIGERCAT FLUID ANALYSIS KITS

Using the Tigercat Advanced Fluid Analysis Program on a regular basis is an excellent preventative maintenance tool.

Each kit includes a Prepaid Sample Bottle and Sample Information Form. Preprinted mailing labels are also included to ensure all samples are quickly returned directly to the lab for immediate analysis and results within 24 hours of receipt.

Studies have shown that it is possible to receive a 10 to 1 payback when looking at the amount saved on repair costs in relation to the amount invested in a scheduled fluid analysis program. Some of the benefits of a sampling program include: • Detecting problems early and before they become major catastrophic failures.

• Better ability to schedule downtime and forecast cost of repairs.

• Monitoring maintenance schedules and practices and confirming the required maintenance is being done on time.

The same type of sample bottle can be used for all types of fluid testing including Hydraulic Circuits, Final Drives, Axles, Gearboxes, Engines, etc.

To ensure accurate and meaningful results are obtained, each kit also includes detailed instructions on how to properly collect, prepare and ship the fluid samples.

Contact your Tigercat Dealer Parts Department to order kits.

• Increase used equipment value by providing proof of proper maintenance.

This Program uses the most modern technology available to analyze all fluid samples. Most test results are available within 24 hours after receipt of the sample and are supplied in an easy to understand report, which calls for specific action and makes detailed recommendations. The report is available as a mailed or faxed hardcopy, sent via e-mail or it can be viewed on the Internet.

This program will provide Tigercat machine owners access to an Advanced Fluid Analysis Program for all major machine components including Engines, Hydraulic Circuits, Axles, Final Drives, Gearboxes, etc.

Tigercat Fluid Analysis Kits are available from your Tigercat dealer parts department. If required, arrangements can also be made with your Tigercat dealer to supply and perform all of the required follow-up fluid samples.

Refer to FLUID SAMPLING PROGRAM in THIS SECTION for sample valve and drain plug locations.

700 Series Location

First Sample

Follow-up Samples

Hydraulic Oil

125 hrs

Every 1000 hrs or 6 Months

Transmission

125 hrs

Every 250 hours or 3 Months

Pump Drive Gearboxes

125 hrs

Every 250 hours or 3 Months

Front & Rear Axles

125 hrs

Every Oil Change (1000 hours)

3.6

Tigercat 720G/724G/726G Feller Buncher

Lubrication and Maintenance

TIGERCAT FLUID SAMPLING PROGRAM

HYDRAULIC OIL SAMPLES

FLUID SAMPLE COLLECTION PROCEDURES

A

Fill out the Sample Information Form (SIF) completely and accurately. When taking multiple fluid samples, fill out all of the required SIF`s in their entirety, prior to taking any fluid samples. Then, immediately package each completed SIF together with the matching fluid sample in the black outer shipping container as each individual sample is taken. This will reduce the possibility of mixing up or incorrectly identifying the SIF`s and fluid samples. Incorrectly identified samples could result in a false warning alarm.

724E-082

A

The accuracy of the lab analysis results is very dependent on the quality of the fluid sample taken.

Collection of clean fluid samples that are representative of the main body of fluid are essential if meaningful lab results are to be obtained. Erroneous readings may result if proper collection, handling, packaging and shipping practices are not followed prior to the sample being tested by the lab. To be able to accurately compare and trend the lab results over time, all followup samples should be consistently taken from the same location using the same techniques as all previous samples.

700067

A Hydraulic Oil Sample Valve – Access Through Left Side

• All sample valves and drain plugs must be clean and free of debris.

• Hydraulic oil samples should be taken from the circulating oil flow at operating temperature, with no functions actuated, using sample valves that are permanently located on the machine whenever possible.

• Remove the dust cover from the sample valve and attach the bleed hose (supplied with the machine) to the sample valve connection.

• Purge the bleed hose before taking a representative oil sample. Drain a minimum of 90 – 120 ml (3 – 4 oz) of oil into a separate container and discard this oil using approved recycling methods.

• Remove the sample bottle cap only when ready to obtain the sample. Keep the cap clean – DO NOT put it in your pocket or let it get contaminated in any way.

• Remove the bleed hose and replace the dust cover on the sample valve immediately after taking the oil sample and sealing the sample bottle.

• DO NOT allow any airborne dirt, etc., to enter the sample bottle.

• Avoid contamination of the sample – replace the sample bottle cap immediately after filling the bottle to approximately ¾ full.

TRANSMISSION, AXLE AND PUMP DRIVE GEARBOX SAMPLES: • These samples can be taken during the oil change process.

All samples taken should be immediately forwarded to the lab for processing.

• To obtain a representative oil sample, the oil must be warm and must not have settled (within 30 minutes of shutdown).

Contact your Tigercat dealer to purchase additional or replacement hydraulic sample valves or drain plugs.

In cases where fluid samples must be pumped or otherwise drawn out of a tank or housing, a hand operated fluid suction pump is also available from your Tigercat dealer.

• Place the required drain container under the machine to capture the used oil to be discarded using approved recycling methods.

• Remove the drain plug and allow approximately 50% of the oil to drain, then place the sample bottle in the stream of draining oil to obtain a representative sample.

3.7

Lubrication and Maintenance

Tigercat 720G/724G/726G Feller Buncher

GENERAL

• When welding, secure ground connection as close to working position as possible to prevent arcing across machined surfaces or through bearings.

CAUTION

• Clean away all branches, bark and chips. Clean up all traces of oil to avoid fires.

All handles, steps and platforms must be kept free of grease, oil, fuel, mud, snow, ice and forest debris.

• Inspect the exhaust system daily for any signs of leakage. Check for worn, cracked, broken, or damaged pipes or muffler. Also check for missing or damaged bolts or clamps. Repair all exhaust leaks or defective parts immediately. Engine exhaust leaks can cause fires. DO NOT operate the machine until the exhaust leak is repaired.

• Clean around filler caps before checking or adding fluids.

• Always release the pilot system pressure before breaking a connection. Refer to RELEASE PILOT SYSTEM PRESSURE in SECTION 1.

• During daily operation of the machine, the occurrence of exhaust leaks are usually accompanied by a change or increase in engine exhaust noise levels. These audible warnings cannot be ignored. When exhaust leaks occur during operation, shut down the machine immediately and do not put it back to work until the necessary repairs have been completed.

• Clean around hydraulic fittings before breaking connection. Plug or cap immediately.

• Clean up spills as soon as possible.

• Always use clean oil and containers.

• Drain dirty oil while still warm.

• Always have a fire extinguisher at hand.

• DO NOT exceed recommended fluid levels.

• Always lower the boom to the ground when leaving the cab, leaving the machine unattended or when performing servicing procedures.

• Service all hydraulic filters after the failure of a pump, motor, cylinder or valve. Failures of this nature could contaminate the entire hydraulic system.

• Install door safety struts when working on the machine.

• Top up diesel fuel at each shift to reduce contamination by condensation.

• Check and clean the fire detection system sensors on a regular basis.

• Clean up oil spills in engine enclosure immediately.

• Before welding on machine, disconnect all electrical connections and follow all servicing safety precautions as outlined in the WELDING, PRIOR TO in SECTION 1.

*OIL LOST FROM LEAKAGE LOST OIL (LITRES) LEAKAGE RATE

PER DAY

LOST OIL (US GALLONS)

PER MONTH PER YEAR

PER DAY

PER MONTH PER YEAR

One drop In TEN Seconds

0.424

12.72

152.0

0.112

3.36

40.0

One drop In FIVE Seconds

0.852

25.6

306.6

0.225

6.75

81.0

One drop per second

4.26

127.76

1533.1

1.125

33.75

405.0

Three Drops per Second

14.2

425.86

5110.31

3.75

112.5

1350.0

Drops Break Into Stream

90.83

2725.5

32706.0

24.0

720.0

8640.0

3.8

Tigercat 720G/724G/726G Feller Buncher

Lubrication and Maintenance

CHECK EMERGENCY EXITS MONTHLY

SKYLIGHT/EMERGENCY EXIT

CAB DOORS

A

A

M726E-019

Outside– Roof

724G-066

B A 726E-070

Inside– Cab

A Skylight Retaining Handles

The skylight serves as a third exit from the cab should the two doors become blocked. There are two retaining handles on the inside and two on the outside to allow removal of the hatch from either side.

724G-066

A Left Cab Door – Primary B Right Cab Door – Alternate

The left cab door is the primary exit. Two alternate exit routes are provided: • Right cab door.

• Skylight/emergency exit.

The right cab door and skylight are ONLY to be used if the left cab door cannot be opened.

Turn the handles in the direction indicated on the label to remove the skylight. These handles should only be HAND TIGHTENED, to allow them to be unscrewed in case of an emergency.

Check these emergency exits monthly to ensure they are fully operational.

3.9

Lubrication and Maintenance FIRE PREVENTION

Tigercat 720G/724G/726G Feller Buncher FIRE EXTINGUISHER

Proper maintenance of your machine will greatly extend its life and reduce your operating costs.

A

Fire can result in a machine loss which can be financially devastating.

CAUTION After transporting (trucking) a machine from one job sight to the next, open all doors and access panels and blow off any debris that may have repositioned itself onto the engine and exhaust parts due to wind turbulence during the journey.

1. When allowed to accumulate, forest debris and fine organic material (twigs, pine needles, branches, bark, leaves, sawdust, small wood chips, etc.) and any other combustible materials form a fuel source that is extremely difficult to extinguish when ignited. A thorough program of regular cleaning and washing will reduce the possibility of a fire starting.

In the event a fire does start, the regular cleaning program will improve the chances of successfully extinguishing a fire.

2. Pay close attention to wiring and plumbing routes during maintenance. ALL wiring harnesses and hydraulic hoses must be properly restrained and clamped to prevent damage from chaffing.

3. If equipped, read the fire suppression system manual and have the system serviced regularly by qualified personnel.

4. In case of fire, lower the grapple to the ground and turn OFF the engine before discharging the fire suppression system.

M726E-052

A Charge Gauge

A portable fire extinguisher is located in operator's cab.

Check the extinguisher checked daily to ensure that it is charged. The pointer on the charge gauge should point to the green region. If the indicator falls out of this green area, service the extinguisher immediately.

Maintain a charged fire extinguisher on the machine at all times and know how to use it.

Refer to the manufacturer's use and information manual for proper usage, additional information and recommended inspection and maintenance intervals.

Refer to FIRE PREVENTION in SECTION 1 for additional information.

3.10

Tigercat 720G/724G/726G Feller Buncher

Lubrication and Maintenance

SCHEDULED MAINTENANCE

WARNING

For service and replacement intervals see SERVICE AND LUBRICATION POINTS in THIS SECTION.

FREQUENTLY • Check for water in fuel filter/water separator.

• Visual engine check.

WARNING, HOT FLUIDS AND HOT MACHINE SURFACES CAN CAUSE SERIOUS BURNS!

• Check the engine cooling air intake screens for possible restriction.

• Before servicing the machine, allow the engine cooling system, fuel system, exhaust system, hydraulic system and machine surfaces to cool down.

• Check for debris, snow and ice buildup on emergency exits and remove accumulation immediately.

• Use a thermometer to check surface and system temperatures to ensure it is safe to begin service work.

• DO NOT begin service work until the surface or system temperature has cooled down to below 100°F (38°C)!

3.11

Lubrication and Maintenance EVERY 8 HOURS PERFORM • FREQUENTLY maintenance.

• Drain fuel filter/water separator.

• Conduct an overall visual inspection.

CHECK

Tigercat 720G/724G/726G Feller Buncher CLEAN • Oil cooler, engine radiator, A/C condenser and charge air cooler.

• Air intake precleaner compartment.

• Remove potentially damaging limbs or sticks and all debris.

LUBRICATE

• Engine coolant level.

• Middle driveshaft slip joint: 1 fitting – purge.

• Engine oil level at dipstick.

NOTE: Lubricate slip joint with machine articulated.

• Air intake precleaner.

• Center joint bearings: 2 fittings – purge.

• Air intake filter restriction indicator.

• Steering cylinder ends: 4 fittings – purge.

• Replace primary filter if indicator is in red zone.

• Boom cylinder pins (tilt and lift): 8 fittings – purge.

• Replace secondary (safety) filter every third primary filter change to guarantee maximum performance and reliability. Air cleaner unloader valve.

• Boom/link pins (lift and tilt): 10 fittings – purge.

• Air cleaner unloader valve.

• All engine air intake system components (including charge air cooler) rubber elbows, connector hoses, tubes and clamps for damage, hardening, wear, cracks, leaks, loose clamps or loose hanger bracket hardware and repair or replace immediately.

• Quick attach locking pins (if applicable): 2 fittings – purge.

Refer to ENGINE OPERATION AND MAINTENANCE MANUAL and ATTACHMENT MANUFACTURER'S DOCUMENTATION for additional required maintenance at this scheduled time period.

• Hydraulic oil tank level.

• Pump drive gearbox oil level at dipstick.

• Transmission oil level at dipstick.

• Pressurized water system pressure. Pressure gauge in cab reading 4 bar (60 psi).

• If pressurized water system has been operated, refer to PRESSURIZED WATER SYSTEM MAINTENANCE in THIS SECTION for refilling and charging instructions.

• For leakage around hydraulic components and flexible hoses.

• For loose nuts, bolts and fittings.

• Condition and tension of belts.

• Exhaust system for leaks.

** Use of filters other than genuine Tigercat replacement filters is not recommended.

3.12

Tigercat 720G/724G/726G Feller Buncher

Lubrication and Maintenance

EVERY 48 HOURS

EVERY 125 HOURS

PERFORM

PERFORM

• 8 HOURS Maintenance.

• FREQUENTLY Maintenance.

CHECK

• 8 HOURS Maintenance.

• Center joint for looseness.

CHECK

Refer to CENTER JOINT MAINTENANCE AND INSPECTION in this section for instructions. If a problem is found corrective action should be taken immediately.

• Fuel fill strainer (cap screen).

Refer to CENTER JOINT in SECTION 11 of the SERVICE MANUAL for more detailed checking and adjustment procedures.

• All hydraulic pressures.

• Fluid level in batteries unless maintenance free.

• Engine speed.

• Hydraulic pumps and motor securing bolts.

• Torque tightening points as per new machine maintenance.

Refer to ENGINE OPERATION AND MAINTENANCE MANUAL and ATTACHMENT MANUFACTURER'S DOCUMENTATION for additional required maintenance at this scheduled time period.

• Test operation of pressurized water system.

Refer to PRESSURIZED WATER SYSTEM in SECTION 2 and PRESSURIZED WATER SYSTEM MAINTENANCE in THIS SECTION.

CLEAN/REPLACE • Recirculating air filter – A/C heater unit. * • Fresh air filter – cab. *

LUBRICATE • Front driveshaft slip joint: 1 fitting – purge.

• Rear driveshaft slip joint: 1 fitting – purge.

• Parking brake shaft seals: 2 fittings (later machines).

• Rear axle oscillation pivot: 2 fittings – purge.

VISUALLY INSPECT FOR DAMAGE TO • Lift boom and tilt linkage.

• Front and rear frame.

• Center joint area.

• Attachment.

Complete repairs immediately.

VISUALLY INSPECT FOR • Frayed electrical wiring and hydraulic hoses.

• Wear in any other components.

NOTE: Neglecting the proper maintenance of these items can result in fire.

Refer to ENGINE OPERATION AND MAINTENANCE MANUAL and ATTACHMENT MANUFACTURER'S DOCUMENTATION for additional required maintenance at this scheduled time period. ** Use of filters other than genuine Tigercat replacement filters is not recommended.

3.13

Lubrication and Maintenance

Tigercat 720G/724G/726G Feller Buncher

EVERY 250 HOURS

EVERY 500 HOURS

PERFORM

PERFORM

• FREQUENTLY Maintenance.

• FREQUENTLY Maintenance.

• 8 HOURS Maintenance.

• 8 HOURS Maintenance.

• 125 HOURS Maintenance.

• 125 HOURS Maintenance.

CHECK

• 250 HOURS Maintenance.

• Fire extinguisher and turn it to mix contents.

• Parking brake oil level.

DRAIN AND REFILL • Oil in pump drive gearbox.

• Oil in transmission.

CHECK • All hydraulic pressures.

• Torque on transmission mounting bolts.

REPLACE • Hydraulic oil return filters. * • Hydraulic oil pressure filter, drive charge pressure. *

REPLACE • Engine oil and filter. *

• Recirculating air filter – A/C heater unit. *

• Engine fuel filter. *

• Fresh air filter – cab. *

• Fuel filter/water separator filter. *

• Engine crankcase ventilation filter. * (Tier 4f machines only.)

• DEF dosing module filter (Tier 4f machines only).

Refer to the ENGINE OPERATION AND MAINTENANCE MANUAL for replacement instructions.

Refer to SECTION 8 of the SERVICE MANUAL for various oil change procedures.

Refer to ENGINE OPERATION AND MAINTENANCE MANUAL and ATTACHMENT MANUFACTURER'S DOCUMENTATION for additional required maintenance at this scheduled time period.

LUBRICATE • Door, door screen and access cover hinges.

Refer to ENGINE OPERATION AND MAINTENANCE MANUAL and ATTACHMENT MANUFACTURER'S DOCUMENTATION for additional required maintenance at this scheduled time period.

** Use of filters other than genuine Tigercat replacement filters is not recommended.

3.14

Tigercat 720G/724G/726G Feller Buncher

Lubrication and Maintenance

EVERY 1000 HOURS PERFORM • FREQUENTLY Maintenance.

• 8 HOURS Maintenance.

• 125 HOURS Maintenance.

• 250 HOURS Maintenance.

• 500 HOURS Maintenance.

CHECK • Intank fuel strainer.

• Center joint for looseness.

Refer to CENTER JOINT MAINTENANCE AND INSPECTION in this section for instructions. If a problem is found take corrective action immediately.

Refer to CENTER JOINT in SECTION 11 of the SERVICE MANUAL for more detailed checking and adjustment procedures.

• Accumulator charge valve strainer.

Refer to SECTION 5 of the SERVICE MANUAL for accumulator charge valve strainer instructions.

DRAIN AND REFILL • Oil in front and rear axles.

Refer to SECTION 8 of the SERVICE MANUAL for axle oil change procedure.

REPLACE • Air cleaner unloader valve.

LUBRICATE • Front and rear axle pinion grease seal: 1 fitting per axle – purge.

Refer to ENGINE OPERATION AND MAINTENANCE MANUAL and ATTACHMENT MANUFACTURER'S DOCUMENTATION for additional required maintenance at this scheduled time period.

** Use of filters other than genuine Tigercat replacement filters is not recommended.

3.15

Lubrication and Maintenance EVERY 2000 HOURS PERFORM • FREQUENTLY Maintenance.

Tigercat 720G/724G/726G Feller Buncher REPLACE • All air intake rubber components such as elbows and connectors – High temperatures in this area can cause the rubber to harden.

• 8 HOURS Maintenance.

NOTE: High-temperature silicone connectors do not need to be replaced unless they are damaged.

• 125 HOURS Maintenance.

NOTE: Refer to AIR INTAKE SYSTEM in THIS SECTION.

• 250 HOURS Maintenance.

• 500 HOURS Maintenance.

• 1000 HOURS maintenance.

CHECK • All hydraulic system components especially cooling fan for proper operation after hydraulic oil has been replaced.

• Hydraulic oil tank breather.

Refer to ENGINE OPERATION AND MAINTENANCE MANUAL and ATTACHMENT MANUFACTURER'S DOCUMENTATION for additional required maintenance at this scheduled time period.

• Air intake precleaner.

DRAIN AND REFILL • Hydraulic oil tank with recommended hydraulic oil.

Refer to APPROVED HYDRAULIC OILS in THIS SECTION. It is strongly recommended that a program of regular oil testing be used. Oil change intervals can be established from oil test results.

Make sure the hydraulic oil type selected on the computer display matches the oil type being used.

Adjust oil type if needed. Refer to COMPUTER CONTROL SYSTEM – HYDRAULIC OIL GRADE SELECTION in SECTION 2 or SECTION 6 of the SERVICE MANUAL, for selecting hydraulic oil type setting procedure.

NOTE: When refilling the hydraulic system, vent pumps, motors and valves of air by opening a plug or hose fitting located near or on top of the pumps, motors and valves until oil free of air is seen flowing out of the plug or hose fitting. Failure to vent air from the hydraulic system could cause serious damage to hydraulic components. Tighten plugs or fittings and clean up any spilled oil when completed.

NOTE: Changing diffuser/strainers, filters and replacing the hydraulic oil tends to aerate the oil. For maximum pump life, DO NOT operate the machine for one hour after servicing to allow entrained air to escape from the oil prior to applying working pressures to the pumps.

• Oil in hydraulic parking brake.

• Water in pressurized water system.

** Use of filters other than genuine Tigercat replacement filters is not recommended.

3.16

Tigercat 720G/724G/726G Feller Buncher

Lubrication and Maintenance

EVERY 2 YEARS

SEASONAL

REPLACE

REPLACE

• Engine coolant. Antifreeze must comply with international specifications ASTM D-6210.

• Drain and refill hydraulic oil tank with recommended hydraulic oil if required to meet operating temperature range.

Refer to ENGINE OPERATION AND MAINTENANCE MANUAL and ATTACHMENT MANUFACTURER'S DOCUMENTATION for additional required maintenance at this scheduled time period.

Refer to APPROVED HYDRAULIC OILS in THIS SECTION. • Drain and refill pressurized water system.

Refer to PRESSURIZED WATER SYSTEM in SECTION 2 and PRESSURIZED WATER SYSTEM MAINTENANCE in THIS SECTION.

** Use of filters other than genuine Tigercat replacement filters is not recommended.

3.17

Lubrication and Maintenance

Tigercat 720G/724G/726G Feller Buncher

FRONT DRIVE SHAFT STEER CYLINDERS 1 FTG/125 4 FTG/8 24

ATTACHMENT 27

5

2

8

7

13

28

6 10 11 18 14 17

26

BOOM CYLINDER PINS ENCLOSURE HINGES 8 FTG/8 10 FTG/500

DOOR SCREEN HINGES 8 FTG/500

BOOM/LINK PINS 10 FTG/8

19 28

15 9 16 REAR DOOR HINGES 2 FTG/500 AXLE OSCILLATION 2 FTG/125 13

1

9

6

12 3 20 4 29

22

21

23

AXLE PINION 1 FTG/1000

25

CENTER JOINT 2 FTG/8

22 AXLE PINION 1 FTG/1000

24

MID DRIVE SHAFT 1 FTG/8

23

REAR DRIVE SHAFT 24 1 FTG/125

LEGEND ..........

HOURS CHK ...........

CHECK LUBRICATION POINT WITH A DESIGNATED NUMBER OF FITTINGS (2 FTG) REP ..........

REPLACE AND HOURS BETWEEN SERVICING (125 ). JOINT TO BE PURGED. DRN ...........

DRAIN USE LITHIUM BASED GREASE CONTAINING MOLYBDENUM DISULFIDE. D/R .......... DRAIN AND REFILL USE OF FILTERS OTHER THAN GENUINE TIGERCAT REPLACEMENT FILTERS LUB .......... LUBRICATE IS NOT RECOMMENDED. CLN ..........

CLEAN

*** STEER MACHINE FULLY BEFORE GREASING MID DRIVE SHAFT SLIP YOKE. 2 FTG/125  

†

3.18

Tigercat 720G/724G/726G Feller Buncher

Lubrication and Maintenance

Tigercat Model 720G/724G/726G SERVICE AND LUBRICATION POINTS

REFER TO Tigercat OPERATOR'S MANUAL FOR FURTHER INFORMATION

31

8.2

•

•

REP

4

FUEL FILTER (ENGINE)

5

FUEL/WATER SEPARATOR

6

DEF DOSING MODULE FILTER - T4F ONLY

7

FUEL CAP SCREEN

8

IN TANK FUEL STRAINER

9

AIR INTAKE PRECLEANER

10

AIR INTAKE PRIMARY FILTER ELEMENT

11

AIR INTAKE SAFETY FILTER ELEMENT

CHK

12

AIR CLEANER UNLOADER VALVE

CHK

13

AIR INTAKE CONNECTIONS

CHK

14

HYDRAULIC OIL FILTER BOOM/FAN/STEER/SAW

• SEE ENGINE MANUFACTURER'S OPERATION AND MAINTENANCE MANUAL FOR PROCEDURES AND CAPACITIES

REP •

1

REP

1

REP

1

REFER TO SECTION 3 OF THE MANUAL FOR DETAILS.

1

CLEAN OR REPLACE AS NECESSARY

1

DRAIN TANK, CLEAN OR REPLACE AS NECESSARY

CHK

1

CLEAN AS REQUIRED / INSPECT IMPELLER FOR WEAR OR DAMAGE REPLACE AS NECESSARY

CHK

1

CHK CHK

REP REP REP † D/R ††

CHK

160 166.5

HYDRAULIC TANK BREATHER HYDRAULIC OIL FILTER HYDRAULIC DRIVE CHARGE PRESSURE

REP

19

A/C & HEATER FILTERS

20

PUMP DRIVE GEARBOX

CHK

D/R

4

1.1

21

TRANSMISSION - WideRANGE - 2 SPEED

CHK CHK

D/R D/R

5.7 4.9

1.5 1.3

22

AXLES: FRONT REAR

D/R D/R

26.5 24.6

7.0 6.5

23

PINION GREASE SEAL - FRONT/REAR AXLE

LUB

24

MID DRIVE SHAFT

FRONT DRIVE SHAFT

CENTER JOINT BEARING PRELOAD

CHK 48 

26

PARKING BRAKE

27

ATTACHMENT

LUB

28

PRESSURIZED WATER SYSTEM

CHK TEST

29

ACCUMULATOR CHARGE VALVE STRAINER

CHECK FOR LOOSE CLAMPS AND DAMAGED RUBBER COMPONENTS. REPLACE RUBBER COMPONENTS.

1

WATER ABSORBING (BLUE) DRAIN AND REFILL AT SEASONAL OIL CHANGE REFER TO MANUAL FOR APPROVED OILS †† CHECK USING VEHICLE DISPLAY MODULE

1

REP †

2

CLEAN OR REPLACE AS NECESSARY CHECK OIL LEVEL. FILL WITH MIL-L-2105C OR API-GL-5 BELOW -10ºF(-23ºC) USE 75W-90 UP TO 100ºF(38ºC) USE 80W-90 ABOVE 100ºF(38ºC) USE 85W-140

PURGE

2

PURGE

1

ONE FITTING PER AXLE LITHIUM BASE EP2 GREASE

1

LUB LUB

3

1

LUB

CENTER JOINT

REFER TO SECTION 3 IN MANUAL

REP †

LUB ***

REAR DRIVE SHAFT

1

42 44

17

CHK

1

CHECK FILTER RESTRICTION INDICATOR. REFER TO 8 HOUR SCHEDULED MAINTENANCE FOR DETAILS (SECTION 3 IN MANUAL).

2

18

25

SEE ENGINE MANUFACTURER'S OPERATIONS AND MAINTENANCE MANUAL FOR REQUIRED ANTIFREEZE SOLUTION AND MIXTURE.

1

•

DRN

720G/724G 726G

DESCRIPTION QTY

2000 

•

USG

•

CRANKCASE VENTILATION FILTER - T4F ONLY

HYDRAULIC TANK

CHANGE COOLANT EVERY 2 YEARS REP

CHK

3

16

1000 

CHK

500 

CHK

LITERS

ENGINE OIL AND FILTER

125 

2

8 COOLING SYSTEM

250 

SERVICE POINT NO. 1

15

CAPACITY

SERVICE EVERY ITEM

LITHIUM BASE EP2 GREASE 

1 PURGE

2

CHK

CHK

LITHIUM BASE EP2 GREASE  REFER TO SECTION 3 OF THE MANUAL FOR DETAILS.

D/R

0.5

FILL WITH ML-L-2105C OR API-GL-5 LUBRICANT GRADE/WEATHER TEMPERATURE: BELOW -10ºF(-23ºC) USE 75W-90 UP TO 100ºF(38ºC) USE 80W-90 ABOVE 100ºF(38ºC) USE 85W-140

0.13

SEE ATTACHMENT MANUFACTURER'S MANUAL CHECK SYSTEM PRESSURE, 60 PSI REFER TO SECTION 2 OPERATOR'S MANUAL.

D/R REP

1

64151BENG R3

3.19

Lubrication and Maintenance

Tigercat 720G/724G/726G Feller Buncher

APPROVED HYDRAULIC OILS Use one of the following oils to fill or replenish the hydraulic system:

3.20

Tigercat 720G/724G/726G Feller Buncher

Lubrication and Maintenance

ARTICULATION LOCK BAR

A

B

WARNING To prevent movement of the machine and possible injury, install the articulation lock bar before performing any work in the center joint area.

E

C

1. Park the machine in a straight ahead position on level ground. Refer to PARKING THE MACHINE in SECTION 1.

726D-039

A B C D E

2. Remove both retaining pins from the front and rear chassis.

3. Slide the lock bar out of the front chassis and into the tube socket on rear chassis.

4. Line up the holes at each end of the lock bar with the holes in the chassis.

5. Secure in place with both retaining pins.

6. Install the lynch pins.

7. After work is completed, slide the lock bar into the front chassis storage position and hold in place with the retaining pin. Store second retaining pin in rear chassis tube socket. Install the lynch pins.

3.21

Front Chassis Rear Chassis Lock Bar Lynch Pin Retaining Pin

D

Lubrication and Maintenance

Tigercat 720G/724G/726G Feller Buncher

TOWING INSTRUCTIONS NOTE: For instructions on transporting the machine, refer to VEHICLE MOVING INSTRUCTIONS found in the operator's manual case in the cab.

Make repairs at the point where the machine is parked whenever possible.

A

Towing is only recommended over short distances.

IMPORTANT! Before towing, place the transmission in NEUTRAL. DO NOT tow a machine in gear. The extremely high forces created will cause significant damage to the components of the hydrostatic drive system and the transmission.

IMPORTANT! DO NOT tow the machine over 3 km/h (2 mph). This will cause significant damage to the transmission.

IMPORTANT! Never press the forward or reverse pedals while the transmission is in neutral. This will cause significant damage to the transmission.

1. To facilitate towing, the transmission must be placed in NEUTRAL. This disconnects the wheels from the hydraulic motor.

A

M726E-054

A Gear Shift Lever

• On a machine with 2-speed transmission, shift the gear shift lever in the cab to NEUTRAL. 2. Steer the machine in a straight ahead position.

3. Raise the attachment off the ground.

4. Install the lift boom cylinder lock. Refer to LIFT BOOM CYLINDER LOCK in THIS SECTION. 5. Turn OFF the engine.

6. Install the articulation lock bar. Refer to ARTICULATION LOCK BAR in THIS SECTION.

700479

A

B

B

SM47

Steering Cylinders

A Normal Hose Connections B Hoses Cross-Connected for Towing

700478

7. To allow the machine to steer while towing and prevent damage to the steering cylinders, cross connect the hydraulic hoses on one of the steering cylinders. This will allow trapped oil to flow freely between the two steering cylinders, providing ease of turning with some dampening effect.

A Disconnect Lever – Engaged B Disconnect Lever – Neutral

• On a machine with wideRANGETM transmission, place a short bar through the hole in the disconnect lever and pull upwards to put the transmission into NEUTRAL as shown above.

3.22

Tigercat 720G/724G/726G Feller Buncher

Lubrication and Maintenance

A

G

P1

P2

P2 C1

C2

C3

C4

C5

C6

C7

C8

A

700424

F

H

D

B

E

C

B

C

724G-008

A Pilot Manifold 'C6' Port (Parking Brake Release) B Porta Power C Parking Brake

8. This machine is equipped with a hydraulic deactivated parking brake. It is necessary to provide portable hydraulic pressure at the parking brake supply 'C6' on the pilot manifold to release it. a. Block the wheels. b. Remove parking brake supply hose from the pilot manifold ('C6' Port) and connect to a remote power source.

724E-007 700096

A B C D E F G H

Parking Brake – Hydraulically Deactivated

Parking Brake Springs Shaft Stationary Discs Rotating Discs Front Axle Rear Axle Transmission (wideRANGETM Shown)

c.

Plug the 'C6' port on the pilot manifold.

9. Pressurize the circuit to 17 bar (250 psi) to release the parking brake.

10. Remove the articulation lock bar.

11. The machine is towed from the rear, making use of the towing lug underneath the bumper.

NOTE: Use a vehicle of equal power and size for towing.

NOTE: When going downhill, use a 'holdback' vehicle, as the machine is now without any effective braking.

12. When towing is completed, install the articulation lock bar and reconnect the steering cylinder hoses to their proper locations.

3.23

Lubrication and Maintenance

Tigercat 720G/724G/726G Feller Buncher

SERVICE COMPARTMENTS, DOORS AND ACCESS PANELS REAR DOOR – PUMP COMPARTMENT B

CAUTION Always install the door safety stop when opening the rear door to perform service in the pump compartment. If not used, the door could close unexpectedly causing personal injury or component damage.

M726E-104

A

700062

A Rear Door – Pump Compartment B Door Latch

To open the door, swing the latch pin stop to the side, lift up the pin and swing open the door.

700063

The rear door provides access to: • Engine air filter • Hydraulic pumps • Pump drive gearbox oil level dipstick

A

• DEF tank fill • DEF control module • Hydraulic oil return filters • Hydraulic oil level sight gauge • Hydraulic oil hand fill pump • Lift boom cylinder lock

700064

A Door Safety Stop in Locked Position

Lift the door safety stop out of its storage position and place the safety stop bolt in hole provided in the door ledge to brace the door open.

3.24

Tigercat 720G/724G/726G Feller Buncher

Lubrication and Maintenance

RIGHT SIDE COMPARTMENTS, DOORS, AND ACCESS PANELS F

E

D

G

B

C

A

724G-002

A B C D E F G

Right Cab Door Cooling Fan and Motor Door – Hinged Cooling Fan and Motor Panel – Removable Engine Compartment Door – Hinged Engine Compartment Panel – Removable Fuel Fill Door – Hinged Engine Coolant Fill Cap Cover

Provides Access to: Cab – Emergency Exit Cooling Fan and Motor, Receiver-Dryer, XA2-A1 Expansion Module Cooling Fan and Motor, Cooling System Drain Valve Air Intake Tubing, Aftertreatment System Sensors Engine Oil Filter, Coolant Shut-Off Valve Fuel Fill Cap, Dipstick, Strainer Engine Coolant Fill Cap (Surge Tank)

The right cab door is an emergency exit.

The cooling fan and motor upper door is hinged. To open the door, swing the latch pin stop to the side, lift up the pin and swing open the door.

The cooling fan and motor lower panel is removable and held in place by the upper hinged door. Fully open the upper hinged door to allow the lower panel to be removed.

The engine compartment upper door is hinged. To open the door, swing the latch pin stop to the side, lift up the pin and swing open the door.

The engine compartment lower panel is removable and held in place by the upper hinged door. Fully open the upper hinged door to allow the lower panel to be removed.

The fuel fill door is hinged. To open the door lift the panel and pivot on the hinge until it rests on the pump compartment roof.

3.25

Lubrication and Maintenance

Tigercat 720G/724G/726G Feller Buncher

LEFT SIDE COMPARTMENTS, DOORS AND ACCESS PANELS A

B

C

D

E

G

H

I

F

724G-004

A B C D E F G H I

Left Cab Door Cooler Package Door – Hinged Cooler Package Panel – Removable Engine Compartment Door – Hinged Engine Compartment Panel – Removable Engine Compartment Panel – Hinged Air Intake Precleaner Door Battery Disconnect Switch Door – Hinged Main Fuse and Relay Panel and Batteries – Removable (Bolted)

The left cab door is the main access to the cab.

The cooling package upper door is hinged. To open the door, swing the latch pin stop to the side, lift up the pin and swing open the door.

The cooling package lower panel is removable and held in place by the upper hinged door. Fully open the upper hinged door to allow the lower panel to be removed.

The engine compartment upper door is hinged. To open the door, swing the latch pin stop to the side, lift up the pin and swing open the door.

Provides Access to: Cab – Main Point of Entry Cooler Package Cooler Package Aftertreatment System Components Engine Fuel Filter, Hydraulic Oil Sampling Valve Engine Oil Dipstick, Engine Oil Fill, Engine ECU, Engine Fuel Filter Air Filter Restriction Indicator, Air Intake Precleaner Battery Disconnect Switch Batteries, Main Fuse and Relay Panel

The engine compartment lower panel is removable and held in place by the upper hinged door. Fully open the upper hinged door to allow the lower panel to be removed and access the engine ECU, A/C compressor, and engine fuel filter.

To access the air intake precleaner, pull on the latch handle and swing the air intake precleaner door open.

To access the battery disconnect switch, pull on the latch handle and swing the battery disconnect door open.

To access the battery compartment fuses and relays, remove the eight battery compartment panel mounting bolts.

3.26

Tigercat 720G/724G/726G Feller Buncher

HYDRAULIC SYSTEM NOTICE

Lubrication and Maintenance IMPORTANT! Before servicing the hydraulic system, park the machine on level ground. Refer to PARKING THE MACHINE in SECTION 1.

DO NOT pre-fill hydraulic oil filters.

Tigercat does not recommend the pre-filling of spin-on filters due to the risk of damage to the hydraulic system caused by unfiltered oil. Unfiltered oil used to pre-fill filters enters directly into the hydraulic circuit. Contaminants in unfiltered oil can cause significant and costly damage to hydraulic valves, pumps and motors.

The cleanliness of hydraulic oil cannot be guaranteed unless it is always pre-filtered before use.

NOTICE Contaminated hydraulic fluid can lead to premature failure of hydraulic components and costly repairs. Filters must be replaced at the recommended time intervals, Refer to scheduled maintenance in this section.

Use of hydraulic oil filters other than the Tigercat brand could lead to severe wear and rapid failure of hydraulic system components.

WARNING

WARNING: HOT HYDRAULIC OIL AND HOT MACHINE SURFACES CAN CAUSE SERIOUS BURNS! • Before servicing the machine, allow the engine cooling system, fuel system, exhaust system, hydraulic system and machine surfaces to cool down.

• Use a thermometer to check surface and system temperatures to ensure it is safe to begin service work.

• DO NOT begin service work until the surface or system temperature has cooled down to below 38°C (100°F).

3.27

Lubrication and Maintenance HYDRAULIC OIL TANK

Tigercat 720G/724G/726G Feller Buncher

1 1/4"

1/4" RADIUS

FIRST USED: 724E

HYDRAULIC OIL LOW LEVEL SENDING UNIT

B

A low level sending unit is installed in the tank. A message is sent to the computer display when the hydraulic oil tank level is low. The alarm light will flash and the alarm will also sound.

Refer to COMPUTER – MESSAGES– CRITICAL – HYDRAULIC OIL LEVEL LOW in SECTION 2.

A

Allowing the level to drop below the LOW limit can result in severe damage to hydraulic components.

14"

If the oil level drops, inspect the machine including all fittings and hydraulic components for leaks. Once the source of the oil loss is located and repaired, oil can be added to the tank.

HYDRAULIC OIL TEMPERATURE SENDING UNIT C

49444BUNI R0

D 700073

A B C D

A temperature sending unit activates the hydraulic oil temperature gauge on the computer display main screen. A message is sent to the computer display when the hydraulic oil temperature exceeds the recommended operating range for the type of hydraulic oil in use. The alarm light will flash and the alarm will also sound.

Refer to COMPUTER – MESSAGES– CRITICAL – HYDRAULIC OIL TEMPERATURE HIGH in SECTION 2.

Hydraulic Oil Tank Breather Hydraulic Oil Level Sight Gauge Hydraulic Oil Low Level Sending Unit

Located at the left rear of the machine, the hydraulic oil tank on models 720G and 724G has a capacity of 160 L (42 US gal) and model 726G has a capacity of 166.5 L (44 US gal).

HYDRAULIC OIL LEVEL SIGHT GAUGE An oil level sight gauge, accessible through the rear door indicates the HIGH and LOW levels of the hydraulic oil.

Maintain the hydraulic oil between the HIGH and LOW level marks on the gauge label. Check oil level with ALL CYLINDERS FULLY RETRACTED to obtain an accurate level reading. Overfilling the tank may cause excess oil to discharge from the breather vent.

3.28

Tigercat 720G/724G/726G Feller Buncher

Lubrication and Maintenance

HYDRAULIC OIL HAND FILL PUMP

B

D A

E

C

700073

A Hand Fill Pump B Hand Fill Pump Quick Connection C Hand Fill Pump Suction Tube

The hydraulic oil hand fill pump is used to add oil to the hydraulic oil tank. The hand fill pump is located on the inside of the rear service compartment door. The oil is pumped directly into the tank through the return filters.

1. Remove the suction tube from its storage position and remove the screw-on cap.

D Fill Hose Quick Connection E Hydraulic Oil Level Sight Gauge

6. Pump the oil until the level is at the FULL mark on the oil level sight gauge.

Check the oil level with ALL CYLINDERS FULLY RETRACTED to obtain an accurate level reading.

2. Clean the tube, then insert it into the supply drum.

7. Remove the suction tube from the supply drum, wipe it clean, install the screw-on cap and place in its storage position.

3. Remove the fill hose from the storage holder and remove the quick connect cap.

8. Disconnect the fill hose from the quick connect on the hand pump.

4. Remove the rubber dust cap from the hand pump quick connect and connect the fill hose to the hand pump.

9. Wipe off any oil to prevent dust accumulation.

5. Operate the pump to fill the tank.

The pump should always be operated at a medium speed with steady motion.

10. Install the fill hose quick connect cap and place the hose end back in holder.

11. Install the rubber dust cap on the hand pump quick connection.

3.29

Lubrication and Maintenance

Tigercat 720G/724G/726G Feller Buncher

REFILLING THE HYDRAULIC SYSTEM When filters are replaced, there is a nominal amount of oil loss through leakage and oil contained in the filters.

This requires a hydraulic system top-up or refill.

Before refilling, check the computer to verify which oil type is selected to ensure the same type and grade of oil is used to refill the system. This will allow the program to optimize the cooling and warning functions to best suite the oil type. Refer to COMPUTER – ADJUSTMENT MENU – HYDRAULIC OIL GRADE SELECTION in SECTION 2 for selecting hydraulic oil type setting procedure.

It is strongly recommended that a program of regular oil testing be used. Oil change intervals can be established from oil test results.

Refer to HYDRAULIC OIL HAND FILL PUMP in THIS SECTION. NOTE: Changing strainers, filters and replacing the hydraulic oil tends to aerate the oil. For maximum pump life, the machine should sit for one hour after servicing to allow entrained air to escape from the oil prior to applying working pressures to the pumps.

When refilling the hydraulic system, vent pumps, motors and valves of air by opening a plug or hose fitting located near or on top of the pumps, motors and valves until oil free of air is seen flowing out of the plug or hose fitting.

Failure to vent air from the hydraulic system could cause serious damage to hydraulic components. Tighten plugs or fittings and clean up any spilled oil when completed.

Check all hydraulic system components especially the cooling fan for proper operation after hydraulic oil has been replaced.

3.30

Tigercat 720G/724G/726G Feller Buncher HYDRAULIC OIL RETURN FILTERS B

A

C

D 700077

A B C D

Return Filter Manifold Filter Restriction Pressure Switch Hydraulic Oil Return Filters (White) – Quantity 2 Water Absorbing Return Filter (Blue) – Quantity 1

The return oil entering the hydraulic oil tank passes through three spin-on hydraulic oil return filters mounted on a filter head beside the hydraulic oil tank. One of the filters is a water absorbing (blue) filter in place to assist with the removal of unwanted moisture from the hydraulic oil.

Lubrication and Maintenance FILTER RESTRICTION PRESSURE SWITCH A filter restriction pressure switch is installed at the inlet of the filter head. When an oil pressure in excess of 1.4 bar (20 psi) is encountered at the inlet, this pressure switch closes and the Hydraulic Oil Filter Bypass icon illuminates RED on the computer display. The alarm will sound and the alarm light will flash continuously.

FILTER/DIFFUSER SERVICE NOTE: The return filters should be checked/changed when the oil filter bypass icon displays RED on the computer display. If the icon continues to display RED after the filters have been changed, the diffuser/strainer attached to the base of the return tube in the hydraulic tank should be examined for possible obstruction.

Refer to HYDRAULIC OIL RETURN DIFFUSER/ STRAINER in THIS SECTION. IMPORTANT! DO NOT use these warnings as a substitute for changing the hydraulic oil return filters at regular intervals as per SCHEDULED MAINTENANCE in THIS SECTION. This information is assuming that operating conditions and running temperatures are normal.

HYDRAULIC FILTER SERVICING GUIDELINES

For service and replacement intervals refer to SCHEDULED MAINTENANCE in THIS SECTION. There is a bypass valve, preset at 1.7 bar (25 psi), built into the filter head, which will open when the filters become restricted. Before the valve is activated, a filter restriction pressure switch will cause the Hydraulic Oil Filter Bypass icon on the computer display to illuminate RED. Refer to FILTER RESTRICTION PRESSURE SWITCH in THIS SECTION.

724G-058

A

A Hydraulic Oil Filter Bypass Icon

If the Hydraulic Oil Filter Bypass icon illuminates RED between scheduled maintenance intervals, stop the machine and change the return filters immediately.

NOTE: The Hydraulic Oil Filter Bypass icon will illuminate YELLOW when the hydraulic oil temperature is low and the filter restriction switch is activated. Allow the hydraulic oil to warm to operating temperature and the icon should change to GREY. Refer to MACHINE PREPARATION in SECTION 2.

NOTICE DO NOT pre-fill hydraulic filters.

Tigercat does not recommend the pre-filling of spinon filters due to the risk of damage to the hydraulic system caused by unfiltered oil. Unfiltered oil used to pre-fill filters enters directly into the hydraulic circuit.

Contaminants in unfiltered oil can cause significant and costly damage to hydraulic valves, pumps and motors.

The cleanliness of hydraulic oil cannot be guaranteed unless it is always pre-filtered before use.

IMPORTANT! Contaminated hydraulic fluid can lead to premature failure of hydraulic components and costly repairs.

Filters must be replaced at the recommended time intervals. Refer to SCHEDULED MAINTENANCE in THIS SECTION. Use of hydraulic oil filters other than the Tigercat brand could lead to severe wear and rapid failure of hydraulic system components.

3.31

Lubrication and Maintenance

Tigercat 720G/724G/726G Feller Buncher

FILTER CHANGE PROCEDURE – RETURN FILTERS

 O-RING GASKET A

1. Park the machine on level ground. Refer to PARKING THE MACHINE in SECTION 1.

2. Open the rear door to access the return filters.

3. Wipe clean the area around the filters and filter head.

4. Wearing eye and face protection (in case of an oil spray), unscrew the old filter.

5. Dispose of old filter and any oil properly.

B

FILTR_SEALS 2

C

A Filter Head B Gasket C Filter Element

6. Check the seating area for the gasket on the filter head and wipe it clean.

a. Remove the used gasket and clean the gasket seat in the head.

7. The new Tigercat filter is supplied with two gaskets enclosed, examine the filter head closely to determine which gasket should be used and follow the instructions to ensure proper installation.

b. Apply clean oil to the new gasket surfaces. c.

 SQUARE SECTION GASKET

d. Screw on the new filter until the gasket makes contact.

A

e. Tighten the filter until the top edge makes metal to metal contact with the filter head (Approximately 1½ additional turns after gasket contact.).

B C FILTR_SEALS 2

A Filter Head B Gasket C Filter Element

a. Remove the used gasket and clean the groove in the head. b. Apply clean oil to new gasket surfaces. c.

Install the new gasket on the inside lip of the filter.

Install the new gasket into the groove in the filter head.

d. Screw on the new filter until the gasket makes contact.

8. Use the fill pump to raise the hydraulic oil level up to the FULL line, replacing oil lost during filter change.

Refer to HYDRAULIC OIL FILL PUMP in THIS SECTION. 9. Clean up any spilled oil.

10. Start the engine and check for leaks. Refer to STARTING ENGINE in SECTION 2.

11. Run engine at LOW speed for at least five minutes to purge any remaining air from the filter system.

Then turn OFF the engine for 15 minutes to allow air bubbles in the hydraulic oil tank to rise.

12. Re-check hydraulic oil level and top-up as needed.

e. Tighten the filter an additional ¾ turn.

3.32

Tigercat 720G/724G/726G Feller Buncher

Lubrication and Maintenance

DRIVE PUMP CHARGE PRESSURE FILTER

CASE DRAIN STRAINER

A

A

724E-117

Underside of Rear Chassis

A Case Drain Strainer

700077

The case drain strainer is located in the bottom of the rear chassis under the engine and can be accessed by removing the bottom access cover under the chassis.

The strainer is used to filter all case drain oil from the pumps and motors before it returns to the hydraulic oil tank.

A Drive Pump Charge Pressure Filter

The drive pump charge pressure filter is on the output side of the hydrostatic drive charge pump. The filter is located in the pump compartment. For service and replacement intervals refer to SCHEDULED MAINTENANCE in THIS SECTION.

The strainer element requires no regular maintenance over the life of the machine. This element requires maintenance only in the event of damage or contamination due to a hydraulic pump or motor failure.

A charge pressure filter bypass switch in the filter head sends a message to the computer display when an oil flow restriction in excess of 3.5 bar (50 psi) is encountered at the drive charge pressure filter. This pressure build up also opens the bypass valve in the filter head allowing oil to bypass the filter element and return to the hydraulic oil tank.

IMPORTANT! The case drain strainer element is NOT a filter element.

Always use the correct replacement element. Use of an incorrect (filter type) element will result in pump damage.

Refer to COMPUTER – MESSAGES– ALERT– DRIVE CHARGE FILTER BYPASS in SECTION 2.

CHANGING THE CHARGE PRESSURE FILTER 1. Park the machine on level ground. Refer to PARKING THE MACHINE in SECTION 1.

2. Wipe the area around the filter and head clean.

3. Place rags below to catch the spillage of oil.

4. Remove the old filter. Always wear face protection to avoid oil spray.

5. Dispose of old filter and any oil properly.

6. Check the seating area for the gasket on the filter head and wipe it clean.

7. The new filter has an attached gasket. Apply hydraulic oil to the gasket surface.

8. Screw on the new filter until the gasket makes contact with the seat in the filter head.

9. Hand tighten filter an additional ½ turn only.

10. Start the engine and check for leaks.

3.33

Lubrication and Maintenance

Tigercat 720G/724G/726G Feller Buncher

HYDRAULIC OIL RETURN DIFFUSER/ STRAINER

7. Check for a buildup of foreign materials where the diffuser/strainer screws onto the pipe and on the access cover.

8. Reinstall the diffuser/strainer using the hex on the end.

NOTE: Repair any burrs created when removing the diffuser/strainer before reinstalling.

B

9. Reinstall the access cover with a new O-ring.

10. Reattach the return hose.

11. Refill the hydraulic tank and check for leaks.

Refer to HYDRAULIC OIL HAND FILL PUMP and REFILLING THE HYDRAULIC SYSTEM in THIS SECTION.

A

12. Bleed air from the main, attachment and fan pumps by loosening the case drain hose fittings at each pump connection.

13. Continue filling hydraulic oil tank using fill pump.

Tighten case drain hose fittings to pumps when oil is seen coming from the pump case drain ports. It is important that all air is evacuated from the pumps.

724E-005A

A Hydraulic Oil Return Diffuser/Strainer B Access Cover

There is a reusable diffuser/strainer fitted to the return tube inside the hydraulic oil tank. Inspecting, changing or cleaning the diffuser/strainer is only to be performed in the event of a catastrophic pump or motor failure or hydraulic oil contamination.

CHANGING OR CLEANING THE DIFFUSER/ STRAINER This procedure should only be performed in the event of a pump failure or hydraulic oil contamination.

1. Park the machine on level ground. Refer to PARKING THE MACHINE in SECTION 1.

14. Fill hydraulic oil tank up to the FULL mark on the sight gauge using fill pump.

IMPORTANT! ALL CYLINDERS MUST BE FULLY RETRACTED when filling the hydraulic oil tank or overfilling will occur.

15. Recheck hydraulic oil level and add hydraulic oil up to FULL mark using the fill pump.

NOTE: Changing diffuser/strainer and filters and replacing the hydraulic oil tends to aerate the oil. For maximum pump life, the machine should sit for one hour after servicing to allow entrained air to escape from the oil prior to applying working pressures to the pumps.

2. Remove the drain plug in the bottom of the tank and drain the hydraulic oil tank into a suitable container.

3. Disconnect the return hose from the top access cover.

4. Remove the top access cover and O-ring. The diffuser and tube are attached to the cover.

5. Clean any debris from the bottom of the tank and wipe it clean.

6. Remove the hydraulic oil return diffuser/strainer using the hex on the end of diffuser. Carefully clean the diffuser/strainer (it is easily damaged by rough handling).

3.34

Tigercat 720G/724G/726G Feller Buncher

Lubrication and Maintenance

AIR CONDITIONING SYSTEM

CONDENSER

All service work must be performed by a certified A/C technician. Charge the system with R134a refrigerant only. Polyalkylene Glycol (PAG) oil should be present in the system and must be used on O-rings and fittings during assembly.

The condenser is part of the cooler package. It changes the high-pressure refrigerant vapour to a liquid.

A/C SYSTEM TOTAL CAPACITIES R134a REFRIGERANT

1.7 kg (3 lb 12 oz)

PAG Oil

59 ml (2 oz)

IMPORTANT! It is recommended that during cold weather when the A/C system is not in use, that it be run for a period of five minutes every two weeks. This will circulate oil to all components of the A/C system.

Refer to COOLER PACKAGE, CLEANING in THIS SECTION for the location of the condenser.

The vapour is condensed to a liquid because of the high pressure that is driving it in, and this generates a great deal of heat. The heat is then removed from the condenser by air flowing through the condenser on the outside.

RECEIVER-DRYER A

COMPONENTS

B

COMPRESSOR

C

700003

A

B 700050

C

724E-088

A Moisture Indicator B Sight Glass (Indicates Condition of Charge) C Binary Switch

The receiver-dryer is located on the right side of the machine behind the cab.

A A/C Compressor B A/C Compressor Belt C Serpentine Belt

The compressor draws in the low-pressure refrigerant vapour from the A/C system.

The compressor is powered by a separate drive belt connected to the engine crankshaft. When the A/C system is turned on, the compressor clutch engages and the compressor pumps refrigerant vapour under high pressure to the condenser.

The compressor and charge ports are accessed through the left side engine compartment.

3.35

Lubrication and Maintenance

Tigercat 720G/724G/726G Feller Buncher

EVAPORATOR CORE, HEATER CORE AND BLOWERS The evaporator core, heater core and blowers are part of the A/C heater unit located on the right side of the cab.

CAB AIR FILTERS RECIRCULATING AIR FILTER – A/C HEATER UNIT

A

A M726E-001

B

C

B

A

B

D

700722

A B C D

Blower Fans Heater Core Evaporator core Expansion Valve

EXPANSION VALVE The expansion valve removes pressure from the liquid refrigerant so that it can expand and become refrigerant vapour in the evaporator.

700071

A Recirculating Air Filter B Thumb Screws

The filter is located at the base of the A/C heater unit.

Remove the two thumb screws on the filter box cover to access the filter.

FRESH AIR FILTER – CAB A

726E-037

A Fresh Air Filter – Cab

The filter is located in the rear of the cab roof and accessible from outside the cab.

Remove the six bolts securing the cover. Remove the air filter cover by loosening the two over-center latches. This will provide access to the filter.

Clean or replace both filters every 125 hours. The recirculating air filter and the cab fresh air filter may require cleaning more frequently under extreme operating conditions.

3.36

Tigercat 720G/724G/726G Feller Buncher INSPECTION Perform the following inspection along with the 125 HOURS inspection outlined in SCHEDULED MAINTENANCE in THIS SECTION.

Lubrication and Maintenance 11. Check the color in the moisture indicator: BLUE is OK; PINK indicates desiccant material in dryer is saturated with moisture.

In the latter situation: a. Replace the receiver-dryer.

1. Check A/C recirculating and cab fresh air filters in the cab. Refer to CAB AIR FILTERS in THIS SECTION.

b. Evacuate the system. c.

2. Check the condenser core for dirt and debris.

Clean as required. Refer to CARE OF MACHINE – COOLER PACKAGE, CLEANING in THIS SECTION.

CAUTION If using pressurized water or compressed air for cleaning, use at 2 bar (30 psi) or less.

Always use personal protective equipment (safety glasses) to guard against flying debris.

3. Check the evaporator coil, located inside the A/C heater unit, for dirt and debris. Also check the inside of the A/C heater unit. Clean as required.

Recharge the system with both refrigerant and PAG oil *.

* Indicates these repairs must only be carried out by a certified A/C technician.

For additional SERVICE information refer to the Tigercat A/C SERVICE MANUAL part number 18795A, available from Tigercat parts department.

IMPORTANT! It is recommended that when the A/C system is not in use (during cold weather), that it be run for a period of five minutes every two weeks. This will circulate oil to all components of the A/C system.

The air conditioner circuit uses a binary switch (located on the top of the receiver-dryer) on the high pressure side. The switch has two settings:

4. With the engine stopped, check the air conditioner compressor belt tension and condition.

• The high pressure protection triggers at 27 bar (391 psig) for rising pressure and 21 bar (304 psig) for falling pressure.

Refer to ENGINE BELTS in THIS SECTION.

• The low pressure protection triggers at 1.9 bar (29 psig) for falling pressure and 2 bar (30 psig) for rising pressure.

5. Check all A/C hoses for kinks.

6. Run the air conditioning system for three to five minutes.

7. Use a thermometer to check the air temperature exiting vents in the cab.

8. Listen to the compressor and blower motor for abnormal noises.

9. Verify the compressor clutch engages.

10. Inspect the sight glass on the receiver-dryer with the A/C ON. A constant stream of bubbles indicates the system is low on refrigerant and requires charging *.

Refer to AIR CONDITIONING SYSTEM– COMPONENTS – RECEIVER-DRYER in THIS SECTION.

3.37

Lubrication and Maintenance

Tigercat 720G/724G/726G Feller Buncher

ENGINE BELTS

BELT REMOVAL AND REPLACEMENT 1. Park the machine on level ground. Refer to PARKING THE MACHINE in SECTION 1.

C

2. Loosen the A/C compressor adjusting bolts and swing the compressor towards the engine.

B

3. Remove the A/C compressor belt.

4. Remove and replace the serpentine belt.

Refer to ENGINE OPERATION AND MAINTENANCE MANUAL for inspection and replacement information for the serpentine belt.

A

5. Install a new A/C compressor belt and swing the compressor away from the engine and tighten the A/C compressor adjusting bolts.

NOTE: Belt tension specification is 55 ± 2 kgf (121 ± 5 lbf).

D 724E-088

A B C D

Serpentine Belt Automatic Tensioner A/C Compressor Belt Compressor Adjusting Bolts

The alternator and water pump are driven by the serpentine belt. Belt tension is controlled by the automatic tensioner. Check the belt for signs of incision, cracks, excessive wear in grooves and signs of end or surface grinding every 8 hours.

The compressor is driven by the A/C compressor belt.

Belt tension is set with the compressor adjusting bolts in a bracket mounted on the engine. Check belt condition and tension every 8 hours.

3.38

Tigercat 720G/724G/726G Feller Buncher

Lubrication and Maintenance

FAN CONTROL

The temperature sensor in the hydraulic oil tank operates in a similar manner to the engine coolant temperature sensor but independently and with a different temperature range. The hydraulic oil temperature range depends on the type of hydraulic oil used.

A

This sensor will signal the electronic control module to turn the fan ON at the minimum set point temperature.

As the temperature of the hydraulic oil increases, the speed of the fan also increases to a maximum of 2500 rpm fan speed at 2200 rpm engine speed. At this point, the temperature of the hydraulic oil will be at the maximum set point or higher.

700042

COOLING SET POINT B

Charge Air Min

60°C (140°F)

Charge Air Max

82°C (180°F)

Engine Coolant Min

90°C (195°F)

Engine Coolant Max

95°C (203°F)

Hydraulic Oil Temp values depend on type of oil used.

When the switch is in the AUTO position and the fan is stopped due to low engine coolant, air intake or hydraulic oil temperatures; turning ON the A/C will immediately set a 1200 rpm fan speed at 2200 rpm engine speed. This is to ensure that sufficient air flow is available for the cab A/C even while the machine is still warming up.

M726E-044

C

CAUTION

D E

Before placing the fan switch in the CLEAN (PURGE) position, make sure there are no personnel on the left side of the machine in the area where the fan will expel debris.

724G-011

A B C D E

XA2 Expansion Module Fan Switch Full On Auto Clean (Purge)

The fan consists of an electronic XA2 expansion module, and a three position fan switch in the operator's cab with CLEAN/AUTO/FULL ON* positions for fan control.

When the engine coolant temperature reaches 90°C (195°F), the sensor on the engine, in conjunction with the electronic control module, sends a signal to the control valve to start to turn the fan slowly. The fan speed is variable from zero up to a maximum of 2500 rpm fan speed at 2200 rpm engine speed. As the temperature of the coolant increases so does the speed of the fan up to the maximum 2500 rpm fan speed at 2200 rpm engine speed. At this point, the engine coolant temperature will be 95°C (203°F) or higher.

When the switch is in the FULL ON (OVERRIDE) position, the fan will run at FULL speed for cooling regardless of coolant, air intake or oil temperatures. The AUTO CLEAN/REVERSE feature will not function in the FULL ON position.

When the switch is pressed momentarily to the CLEAN (PURGE) position, the control module will signal the control valve to reverse the flow of oil to the motor and turn the fan in reverse. The control module will also turn the air conditioning system OFF for as long as the fan switch is in the CLEAN (PURGE) position.

Refer to COMPUTER – ADJUSTMENT MENU – FAN CLEAN FREQUENCY and FAN CLEAN DURATION in SECTION 2 to make adjustments.

3.39

Lubrication and Maintenance

Tigercat 720G/724G/726G Feller Buncher

FUSES AND RELAYS Each circuit of the machine is protected against current overload by fuses. If a fuse is blown it must be replaced by one of the same value. If the fuse blows again, the circuit should be inspected for possible short circuit or other malfunction.

FUSE AND RELAY PANEL – CAB The fuses, diodes, resistors and relays are located below the right control panel and can be accessed by opening the panel in the cab.

M726E-053

3.40

Tigercat 720G/724G/726G Feller Buncher

Lubrication and Maintenance

MAIN FUSE AND RELAY PANEL – BATTERY COMPARTMENT The main fuse and relay panel is located in the electrical box in the battery compartment in the left rear of the machine.

ECU RELAY

For Tier 4f machines equipped with ECU relay (4), remove the relay and replace with jumper wire P/N 55080A. Affix label P/N 55150A beside the main panel label (Product Support Bulletin Number 2467).

724G-013

Tier 2 machines do not require replacement of the relay but some machines may have the jumper wire installed.

3.41

Lubrication and Maintenance

Tigercat 720G/724G/726G Feller Buncher

ENGINE DIAGNOSTICS CONNECTION A

M726E-053

A Engine Diagnostics Connection

The engine diagnostics connection is located in the cab on the right side, under the control panel.

Plug a remote electronic diagnostic device into this connection such as a laptop computer with appropriate engine manufacturer’s programming to perform engine performance analysis and tuning.

IMPORTANT! This operation can only be performed by a trained service technician.

3.42

Tigercat 720G/724G/726G Feller Buncher

Lubrication and Maintenance

BATTERY CARE Tigercat uses two types of batteries dependant on the machine application, model and design.

• Absorbed Glass Mat (AGM) • Flooded Lead Acid (FLA).

NOTICE Before charging the battery, it is important to identify which type of battery you have.

Always read and follow the battery and charger manufacturer's instructions prior to connecting or charging a battery.

All batteries are sensitive to overcharging. Charging or maintaining AGM batteries requires the use of a smart charger with an AGM setting. The peak charging voltage for AGM batteries varies slightly between battery manufacturer's. Exceeding this voltage can cause permanent battery damage. Refer to the BATTERY MANUFACTURER'S charging instructions for more information.

Refer to BATTERY MANUFACTURER'S instructions for charging or maintaining FLA batteries.

3.43

Lubrication and Maintenance

ENGINE FILTERS – REMOVE AND REPLACE

Tigercat 720G/724G/726G Feller Buncher ENGINE OIL FILTER

IMPORTANT! Failure to service and replace engine filters at the proper intervals specified in the ENGINE OPERATION AND MAINTENANCE MANUAL, could cause damage to the machine and result in the product warranty becoming NULL and VOID. Check the Tigercat parts catalogue for replacement filters.

Refer to the ENGINE OPERATION AND MAINTENANCE MANUAL for the oil and fuel filter replacement procedure. Read and understand the SAFETY section in each of THESE MANUALS.

A

700012

A Engine Oil Filter

The engine oil filter is located on the right side of the engine.

When installing a new oil filter, DO NOT pre-fill with engine oil as this may result in engine damage. This type of failure is not warrantable by the engine manufacturer.

For service and replacement intervals refer to SERVICE AND LUBRICATION POINTS in THIS SECTION. Refer also to ENGINE OPERATION AND MAINTENANCE MANUAL for more detailed information.

3.44

Tigercat 720G/724G/726G Feller Buncher

Lubrication and Maintenance

FUEL FILTERS These engines use filters with a very fine micron rating.

If the fuel supply is dirty, the fuel filter must be replaced more frequently than recommended in SCHEDULED MAINTENANCE in THIS SECTION. Operating the machine with a clogged fuel filter will result in low engine power. It is also recommended to drain the fuel filter/ water separator bowl daily.

When installing a new fuel filter, DO NOT pre-fill with diesel fuel as this will result in fuel pump damage.

This type of failure is not warrantable by the engine manufacturer.

To prolong the operating life of the fuel filter, the fuel supply storage tank must be clean and free of water and the fuel must be pre-filtered prior to adding it to the machine.

WARNING The fuel pump high-pressure fuel lines and fuel rail contain very high pressure fuel. DO NOT loosen any fittings while the engine is running.

Personal injury and property damage can result.

1. Park the machine on level ground. Refer to PARKING THE MACHINE in SECTION 1.

2. Allow machine to cool.

3. Wipe clean the area around the filter and head.

4. Place rags below to catch the spillage of fuel.

WARNING

Drain fuel filter into a container and dispose of all fluids properly.

A

5. Wearing face protection (in case of a fuel spray) unscrew the old fuel filter. Dispose of any fuel and the fuel filter properly.

700075

A Engine Fuel Filter

The engine fuel filter is located on the right side of the engine.

6. Check the seating area for the O-ring on the filter head and wipe clean.

7. Lubricate the O-ring on top of the new filter with clean engine oil. DO NOT pre-fill the new filter.

8. Screw the new filter onto the filter head as specified by the filter manufacturer. Note: Mechanical over tightening can damage the filter element.

9. Prime the fuel system using the hand primer on the remote fuel filter/water separator before starting the engine.

Loosen the plug on the top of the remote fuel filter/ water separator. Pump the hand primer until fuel begins to seep out around the loosened plug.

Continue to pump until no air bubbles are visible (approximately 30 pumps). Tighten the plug. Pump the hand primer 30 more times.

10. Start the engine and check for leaks. Refer to STARTING ENGINE in SECTION 2.

3.45

Lubrication and Maintenance FUEL FILTER/WATER SEPARATOR

Tigercat 720G/724G/726G Feller Buncher DRAINING FUEL FILTER/WATER SEPARATOR C

D

B A A

B E H

724E-080

A Fuel Filter/Water Separator

The fuel filter/water separator is located on the right side of the pump compartment.

F

G WATER SEPARATOR3

A B C D E F G H

Fuel Filter/Water Separator O-Ring Hand Primer Pump Vent Plug Water/Sediment Bowl Bowl Drain Plug Harness (Heater Element not shown) Sensor, Water in Fuel Heater

1. Park the machine on level ground. Refer to PARKING THE MACHINE in SECTION 1.

2. Wipe clean the area around the filter and head.

3. Place a suitable container under the filter and/or place rags below to catch the spillage of fuel.

4. Loosen the metal vent plug on the filter head.

5. Turn the drain valve open on the separator bowl to allow the fuel to drain completely from the separator bowl into a suitable container.

NOTE: A drain hose can be attached to the drain valve if required.

6. Close the drain valve.

The fuel filter/water separator is a combination unit, with a replaceable fuel filter and a removable water sediment bowl on the bottom of the unit. The water sediment bowl is only replaced if it becomes damaged or non-functional. For service and replacement intervals, refer to SERVICE AND LUBRICATION POINTS in THIS SECTION.

3.46

Tigercat 720G/724G/726G Feller Buncher

Lubrication and Maintenance

CHANGING FUEL FILTER/WATER SEPARATOR Refer to SCHEDULED MAINTENANCE and SERVICE AND LUBRICATION POINTS in THIS SECTION for filter replacement intervals.

1. Park the machine on level ground. Refer to PARKING THE MACHINE in SECTION 1.

WARNING To lower the risk of causing accidental fires, DO NOT leave fuel or oil soaked rags laying around.

WARNING

2. Drain the fuel from the filter/water separator as described previously in this section.

Drain fuel filter into a container and dispose of all fluids properly.

3. Disconnect the fuel heater and the 'water-in-fuel' sensor from their respective wiring harness.

4. Wearing eye and face protection (in case of a fuel spray) use a strap wrench to remove the water separator bowl from the filter head.

5. Dispose of any fuel properly .

6. Remove and discard the O-ring from the top of the separator bowl.

7. Clean the separator bowl.

8. Remove the filter cartridge from the filter head (pressure fit) and discard properly.

9. Place the new filter into position on the filter head.

10. Lubricate the O-ring with clean engine oil and install at the top of the separator bowl.

11. Install (screw) separator bowl onto the filter head, hand tighten, then turn an additional 3⁄4 turn only.

12. Reconnect the fuel heater and the 'water-in-fuel' to their respective wiring harness.

13. Turn the ignition key switch to the ON position to energize the fuel supply shut-off solenoid valve.

14. Prime the fuel system using the hand primer until fuel spills out the metal vent plug.

15. Close the vent plug.

16. Start the engine and check for leaks. Refer to STARTING ENGINE in SECTION 2.

3.47

Lubrication and Maintenance FUEL HEATER

Tigercat 720G/724G/726G Feller Buncher

FUEL TANK COMPONENTS FUEL FILL CAP C B

A

724E-097

B A 724E-080

A Fuel Filter/Water Separator B Fuel Heater (Bottom of Bowl)

The fuel heater is incorporated into the fuel filter/water separator and is controlled electronically by the engine ECU.

724G-127

A Fuel Tank B Fuel Fill Cap C Fuel Level Sender

The fuel tank is located at the right-rear corner of the machine. The fuel tank on models 720G/724G has a usable capacity of 303 L (80 US gal). The fuel tank on model 726G has a usable capacity of 340.6 L (90 US gal). The fuel fill cap and fuel level sender are located under a hinged fuel fill door on the top of the tank. The fuel level sender sends a signal to the computer which displays an on-screen fuel level gauge.

A

B

700016

A Dipstick B Fuel Fill Strainer

A dipstick and a fuel fill strainer are located under the fuel fill cap. The dipstick slides through a hole in the side of the strainer. DO NOT drop the dipstick into the filler tube or it will punch a hole in the bottom of the strainer.

Remove and clean the fuel fill strainer every 125 hours.

Replace the fuel fill strainer if damaged.

3.48

Tigercat 720G/724G/726G Feller Buncher FUEL TANK STRAINER

Lubrication and Maintenance 13. Turn ON the battery disconnect switch.

14. Check that all personnel are clear of the machine before starting engine.

B

15. Sound horn to warn personnel of machine start-up

C D

16. Start the engine.

17. Check for leaks again.

A

724E-006

A B C D

Strainer Fuel Tank O-Ring Clean-Out Cover

The fuel tank strainer is threaded onto the inlet pipe of the engine fuel feed line, located inside the bottom of the fuel tank.

CHANGING OR CLEANING THE STRAINER 1. Park the machine on level ground. Refer to PARKING THE MACHINE in SECTION 1.

2. Install the articulation lock bar. Refer to ARTICULATION LOCK BAR in THIS SECTION for instructions.

3. Block the wheels.

4. Remove the fuel tank drain plug in the bottom of the tank and drain the fuel into a suitable container.

5. Remove the round fuel tank clean-out cover plate and O-ring from the access hole. Discard the O-ring.

6. Remove the fuel strainer using the hex collar on the end of strainer.

7. Clean any debris from the fuel tank and wipe all accessible surfaces clean.

8. Clean the strainer carefully (it can easily be damaged by rough handling).

9. Check for a buildup of foreign materials where the strainer threads on to the pipe and elbow.

10. Reinstall the strainer.

11. Reinstall the fuel tank cover plate with a new O-ring.

12. Refuel and check for leaks.

3.49

Lubrication and Maintenance

Tigercat 720G/724G/726G Feller Buncher

REFUELLING PROCEDURE WARNING

A

DO NOT refuel while smoking or while near an open flame or sparks.

726G-003

A Fuel Nozzle Holding Bracket

5. Before climbing onto the machine to refuel, secure the fuel nozzle in the nozzle holding bracket.

6. Once safely on the machine open the hinged fuel fill door on top of the fuel tank and clear any debris from around the fuel fill cap.

7. Remove the fuel fill cap slowly to allow pressure to escape from the tank.

S≤15 mg/kg ULTRA LOW SULFUR FUEL ONLY 36686AUNI R0

1. Park the machine on level ground. Refer to PARKING THE MACHINE in SECTION 1.

2. Allow the machine to cool down.

3. Clear obstructions from steps and handles needed to access the fuel tank.

4. Attach a grounding strap to an unpainted metal surface on the machine if the refuelling tank or nozzle is so equipped.

8. Inspect the fuel fill cap gasket.

9. Inspect the fuel strainer located under the fuel fill cap for debris or damage.

10. Fill the tank until the fuel level reaches the bottom of the fuel strainer. DO NOT leave the fuel nozzle unattended or spillage may occur.

11. When refuelling is complete, place the fuel nozzle back in the holding bracket.

12. Install the fuel fill cap hand tight. Close the hinged fuel fill door.

13. Climb off the machine.

14. Remove the fuel nozzle and grounding strap (if applicable).

NOTE: Before restarting the machine, refer to STARTING ENGINE in SECTION 2.

3.50

Tigercat 720G/724G/726G Feller Buncher

Lubrication and Maintenance

AIR INTAKE SYSTEM

HOW IT WORKS

ENGINE AIR PRECLEANER

1. Dirty air (A) enters the precleaner, which is clamped onto the engine air intake.

2. Specially-designed vanes (B), curved and angled to precisely direct air flow, move the dirty air toward the stainless steel impeller (C).

A

3. The dynamically balanced, one piece impeller (C) (only moving part) creates a tornado inside the housing.

4. The centrifugal force of the tornado expels the heavier than air dirt particles (D), chaff, dust, snow, rain, etc., out the discharge louvre.

724G-069

A Engine Air Precleaner

The engine air precleaner cleans engine air before it reaches the air cleaner filter elements. It removes contaminants such as dust, powder, insects, rain and snow. This precleaner is self powered and self cleaning requiring virtually no maintenance.

5. Cleaned air (E) enters the engine air cleaner intake pipe, and the filter element has only the very light particles to remove.

AIR INTAKE TUBING AND JOINTS C A

IMPORTANT! Check the precleaner every 8 hours for foreign materials that may have plugged the intake area or the discharge louvre area. Clean as required.

A plugged precleaner will create a restriction to airflow, resulting in reduced engine performance and increased fuel consumption.

If the machine is operated with a plugged precleaner, excessive air intake restriction will damage the rubber air intake tube which will lead to ingestion of dirt into the engine resulting in engine failure. The air intake filter restriction indicator may not function properly if the air intake tube is damaged.

B

724G-016

A Air Intake Tube B Air Intake Joints C Air Precleaner Tube

D

C

E

A

B TURBO 2

A B C D E

Check all air intake system components, rubber elbows, connector hoses, tubes and clamps for damage, hardening, wear, cracks, leaks, loose clamps or loose hanger bracket hardware. Repair or replace immediately.

Replace all air intake rubber components such as elbows and connectors every 2000 hours. High temperatures in this area can cause the rubber to harden.

NOTE: High-temperature silicone connectors do not need to be replaced unless they are damaged.

Dirty Air Specially-designed Vanes Stainless Steel One Piece Impeller Foreign Particles Cleaned Air

3.51

Lubrication and Maintenance

Tigercat 720G/724G/726G Feller Buncher

AIR CLEANER

In addition to the SCHEDULED MAINTENANCE in THIS SECTION, the following instructions should also be noted: NOTE: Replace secondary (safety) filter every third primary filter change.

The most common and most damaging air intake servicing problems are over servicing and improper servicing.

OVER SERVICING A

Filter elements increase in dust cleaning efficiency as dust builds up on the media. Looks can be deceiving. A filter that is dirty is actually more efficient than one that is clean. A filter with dust build up on the media reaches nearly 100% dust cleaning efficiency. Only when a filter is so clogged with dirt that air restriction goes beyond the engine manufacturer’s guidelines, should be replaced.

B

700078

IMPROPER SERVICING

A Air Cleaner B Air Cleaner Unloader Valve

B

Engine exposure to dust during servicing is the largest single factor contributing to engine damage due to dust. Abrasive dust can easily enter the intake system once the air cleaner element has been removed for replacement. The safety element reduces the risk, however it must also be replaced at every third primary element change.

IMPORTANT STEPS TO FOLLOW WHEN CHANGING FILTER ELEMENTS 1. Release the cover latches gently to reduce the amount of dust dislodged.

2. Avoid dislodging dust from filter element(s) by gently pulling the element out of the housing.

3. Check your old filter sealing surfaces, This will help detect foreign material on the sealing surface that is causing leakage.

NOTE: DO NOT clean and reuse filter elements.

Cleaning causes dust to bypass the filter and be deposited on the inner surface of the filter media.

The dust is then drawn directly into the engine.

A 726D-006

A Primary Element B Secondary (Safety) Element

The air cleaner on this machine uses two filter elements; a primary element and a secondary (safety) element. It is accessible through the service compartment access door on the rear of the machine.

To ensure maximum engine protection, it is important that the elements be serviced correctly and at proper servicing intervals.

4. Always clean the inside of the housing.

5. Always clean the sealing surface before inserting a new filter element.

6. Inspect the new filter for damage.

7. Insert the new filter properly. Apply pressure to the filter frame not the pleated filter surface.

8. Check connections hoses and tubes for an air tight fit. All clamps, bolts and connections must be tight.

Check rubber elbows for splits or wear points. Leaks in these locations send dust directly to the engine.

3.52

Tigercat 720G/724G/726G Feller Buncher

Lubrication and Maintenance

AIR FILTER RESTRICTION INDICATOR

AIR CLEANER UNLOADER VALVE

A

724G-069

A

C 700078

A Air Cleaner Unloader Valve

Check the rubber air cleaner unloader valve on the air cleaner housing every 8 hours. If this valve is missing, damaged or has become hard, it will cause the air cleaner to become ineffective.

B 700049

A Air Filter Restriction Indicator B Hose To Air Filter Restriction Indicator C Air Filter Restriction Sensor

Replace the unloader valve every 1000 hours.

An air filter restriction indicator is connected to the outlet side of the air filter. Service to the air filter is required when the restriction indicator shows RED. This indicator provides a continuous reading whether the engine is running or is shut down. After servicing the filter, reset the indicator by pressing the reset button.

Remove the unloader valve from the tube of the air cleaner housing. A good valve should be soft and flexible. Check and clean the valve. If it is plugged, check the filter elements as they may also need to be replaced. Reattach the valve to the tube. The valve should suck closed at about one-third of HIGH speed.

When operating in high dust conditions this valve should be checked and squeezed every two hours to release dust buildup.

AIR FILTER RESTRICTION SENSOR

Refer to AIR CLEANER UNLOADER VALVE in SERVICE AND LUBRICATION POINTS in THIS SECTION.

700218

The machine is also equipped with an engine air filter restriction sensor which sends an alert message to the computer in the event of filter restriction.

Refer to AIR INTAKE SYSTEM– AIR CLEANER – OVER SERVICING and AIR INTAKE SYSTEM– AIR CLEANER– IMPROPER SERVICING in THIS SECTION. Refer to COMPUTER – MESSAGES– ALERT– ENGINE AIR INTAKE FILTER RESTRICTED in SECTION 2.

3.53

Lubrication and Maintenance

Tigercat 720G/724G/726G Feller Buncher

3.54

Tigercat 720G/724G/726G Feller Buncher

Lubrication and Maintenance

THE AFTERTREATMENT SYSTEM AND ITS RELATED COMPONENTS ARE APPLICABLE TO TIER 4F MACHINES ONLY.

AFTERTREATMENT SYSTEM Tier 4f machines are equipped with a combination Diesel Oxidation Catalyst (DOC) and high efficiency Selective Catalytic Reduction (SCR) aftertreatment system to limit the nitrogen oxide exhaust gas values (NOx) to meet Tier 4 final emission standard requirements with low fuel consumption. This process is electronically controlled by the DENOX 2.2 system.

The DOC uses oxidation at high temperatures to convert carbon monoxide (CO), hydrocarbons (HC) and the soluble organic fraction (SOF) of diesel particulates into inert compounds, carbon dioxide (CO2) and water vapour (H2O). In addition the DOC converts nitrogen oxide (NO) into nitrogen dioxide (NO2). Increased NO2 levels enhance the performance of the SCR catalyst at low temperatures and increase the effectiveness of the DOC/SCR aftertreatment system as a whole.

The high efficiency SCR process is based on a series of chemical reactions which involve the reaction of ammonia with the oxygen in the exhaust gas to reduce nitrogen oxides (NOx) in the exhaust gas by transforming it into inert compounds: free nitrogen (N2) and water vapour (H2O). In addition the high efficiency catalytic converter includes a clean up catalyst (CUC) which reduces any excess ammonia (NH3) which may result from the SCR process.

IMPORTANT! DO NOT idle the engine longer than one hour.

Damage to the emission control system will result.

When this machine idles for an extended period, excess hydrocarbon buildup is created in the DOC/ SCR aftertreatment system. Burn off of excess hydrocarbon, at full load, immediately after a long idle period, generates excess heat which causes damage to emission control system components.

IMPORTANT! When cleaning the machine with pressurized water it is important to avoid getting water directly or indirectly into the exhaust tube. Water in the exhaust tube will damage sensors and SCR system components and affect the proper operation of the aftertreatment system and the engine.

3.55

Lubrication and Maintenance

D

Tigercat 720G/724G/726G Feller Buncher

E

F

G

H

I

J

K

L

C

B

A

O

N

M

700006

A B C D E F G H

Aftertreatment System Components– 720G

DEF Tank DEF Supply Module DOC Inlet Temperature Sensor Diesel Oxidation Catalyst (DOC) Dosing Module (DEF Injector) Mixer Tube Catalytic Converter Inlet Temperature Sensor Humidity and Temperature Sensor

I J K L M N O

3.56

Outlet NOx Sensor SCR with Clean Up Catalyst (CUC) Catalytic Converter Outlet Temperature Sensor NH3 Sensor Exhaust Flap Heater Valve Inlet NOx Sensor DENOX 2.2 Dosing System (incorporated into the engine ECU)

Tigercat 720G/724G/726G Feller Buncher

D

Lubrication and Maintenance

E

F

G

H

I

J

K

L

C

B

A

O

N

M

700008

A B C D E F G H

Aftertreatment System Components– 724G and 726G

DEF Tank DEF Supply Module DOC Inlet Temperature Sensor Diesel Oxidation Catalyst (DOC) Dosing Module (DEF Injector) Mixer Tube Catalytic Converter Inlet Temperature Sensor Humidity and Temperature Sensor

I J K L M N O

3.57

Outlet NOx Sensor SCR with Clean Up Catalyst (CUC) Catalytic Converter Outlet Temperature Sensor NH3 Sensor Exhaust Flap Heater Valve Inlet NOx Sensor DENOX 2.2 Dosing System (incorporated into the engine ECU)

Lubrication and Maintenance

Tigercat 720G/724G/726G Feller Buncher W

M

T F

E

HC

S

Hydrocarbons Nitrogen Oxides Carbon Monoxide Ammonia Free Nitrogen Water Carbon Dioxide

NOx I

CO

N

HC – NOx– CO – NH3 – N2 – H2O – CO2 –

H

B V

R

U

Q

X P

L

O

C

G

D

H2O

N2

NH3

CO2

K 630E-276

A B C D E F G H I J K L

EXHAUST GAS FLOW DIRECTION

A

COOLANT LINE

DEF Tank Sending Unit (includes Level Sensor) DEF Quality Sensor Heater Valve ECU – Engine (DENOX 2.2 Dosing System) Exhaust Flap Diesel Oxidation Catalyst (DOC) DEF Supply Module DEF Dosing Module Filter (in Supply Module) Dosing Module (DEF Injector) Mixer Tube Catalytic Converter (includes SCR and CUC)

The DOC/SCR aftertreatment system is electronically managed by the DENOX 2.2 system incorporated into the engine Electronic Control Unit (ECU). The ECU calculates and adjusts the flow rate of the DEF solution into the system based on current engine speed, torque delivered, exhaust temperature, amount of nitrogen oxides and ammonia present.

The exhaust passes through the DOC which uses oxidation at high temperatures to convert carbon monoxide (CO), hydrocarbons (HC) and the soluble organic fraction (SOF) of diesel particulates into inert compounds, carbon dioxide (CO2) and water vapour (H2O). It also converts nitrogen oxide (NO) into nitrogen dioxide (NO2) which enhances the performance of the SCR catalyst.

The supply module pump picks up the DEF solution from the tank and sends it under pressure to the dosing module (DEF injector) to be injected into the exhaust at the outlet of the DOC and pass through the mixer tube upstream of the catalytic converter.

M N O P Q R S T U V W X

J DEF LINE

Humidity and Temperature Sensor DOC Inlet Temperature Sensor Catalytic Converter Inlet Temperature Sensor Catalytic Converter Outlet Temperature Sensor NH3 Sensor ECU – NH3 Sensor Inlet NOx Sensor ECU – Inlet NOx Sensor Outlet NOx Sensor ECU – Outlet NOx Sensor Air Filter Engine

The first phase of the SCR process takes place in the pipe between the DOC and Catalytic converter. High temperature exhaust gas evaporates the DEF solution instantly and, by hydrolysis, converts it into ammonia (2NH3) and carbon dioxide (CO2).Evaporation of the solution lowers exhaust gas temperature, bringing it closer to the optimum temperature required by the process.

The exhaust gases and ammonia, at the proper reaction temperature, are introduced into the catalytic converter, where the second phase of the process takes place. The ammonia is converted into free nitrogen (N2) and water vapour (H2O) by reacting with the oxygen in the exhaust gases.

Finally the high-efficiency catalytic converter incorporates a clean up catalyst (CUC) which reduces any excess ammonia (NH3) resulting from the SCR process.

3.58

Tigercat 720G/724G/726G Feller Buncher

Lubrication and Maintenance

DIESEL EXHAUST FLUID (DEF) TANK

The DEF tank includes a fill cap/strainer, a sending unit and a DEF quality sensor.

SENDING UNIT A

41581AUNI R0

A B 700079

A DEF Tank Fill Cap D

The DEF tank is located in the pump compartment at the rear of the machine. The DEF tank fill point is equipped with a strainer to prevent contaminants from entering the tank. Do not remove this strainer when filling the DEF tank.

DEF tank capacity is 43L (11.4 US gal). DO NOT overfill tank. The tank is equipped with an expansion capacity of 7% required to allow for the expansion of DEF in cold temperature conditions. DEF freezes at −11°C (12°F).

A DEF level indicator is shown on the computer display main screen, below the fuel gauge.

C 620E-082

A B C D

Coolant Heater Coil Level Sensor Strainer Temperature Sensor

The sending unit incorporates a heater coil, vent port, level sensor, strainer, temperature sensor, heating system inlet/outlet connections, DEF inlet/outlet connections and an electrical connector.

DEF QUALITY SENSOR

C

B A

The DEF quality sensor is located on the bottom of the DEF tank. It must be removed to drain the tank.

724G-017

724G-018

D

A DEF Tank B DEF Tank Fill Cap/Strainer C Sending Unit D DEF Quality Sensor

3.59

Lubrication and Maintenance

Tigercat 720G/724G/726G Feller Buncher

DRAINING AND CLEANING THE DEF TANK Drain and clean the DEF tank when: • A DEF-related alarm occurs and the problem may be due to a blocked DEF line or a pressurization problem.

• Any situation where a contaminated DEF supply is suspected.

1. Park the machine on level ground. Refer to PARKING THE MACHINE in SECTION 1.

8. Reinstall the quality sensor into the DEF tank.

Tighten and torque the M6 bolts to 2.5 – 3.5 Nm (1.8 – 3.5 lbf-ft).

9. Replace the access cover on the bottom of the right rear of the machine.

DO NOT reuse the DEF that has been drained from the tank. Use a licensed waste disposal contractor or as otherwise required by local laws to dispose of DEF. If any DEF fluid has spilled, rinse well with water.

REMOVING THE DEF TANK AND SENDING UNIT

2. Read the DEF level indicator on the computer display main screen to estimate the container capacity required to drain the DEF.

1. Drain and clean the DEF tank. Refer to DRAINING AND CLEANING THE DEF TANK in THIS SECTION.

A

B

A D

C

700001

A B C D

DEF Fill Cap DEF Tank (Access Panel Removed) Access Cover (Shown Removed) – Right Rear Corner, Underside DEF Quality Sensor

3. Using the appropriate equipment, syphon as much DEF as possible from the tank into a suitable container to enable removal.

700051

A DEF Tank Retention Bolt

2. Remove the DEF tank retention bolt in the pump compartment.

4. Remove the access cover on the bottom of the DEF tank compartment (right rear of the machine).

5. Disconnect and carefully remove the DEF quality sensor at the bottom of the tank.

6. Drain the remaining DEF in the tank into a suitable container.

NOTE: DEF is corrosive to most metals. Protect the electrical connections once the DEF quality sensor has been disconnected.

7. Clean the inside of the tank with clean DEF, distilled water or demineralized water. Thoroughly drain the tank after cleaning.

3.60

Tigercat 720G/724G/726G Feller Buncher C

D

B

Lubrication and Maintenance 7. Slowly lift the DEF sending unit straight up and out of the tank.

A

A

F

E

T250D-122

A Sending Unit Inlet Strainer

1000004

A B C D E F

DEF Sending Unit

Electrical Connector Coolant Inlet DEF Supply Vent Port DEF Return Coolant Outlet

8. Inspect the inlet strainer at the bottom of the sending unit.

A

3. Disconnect the DEF lines and electrical connector from the DEF sending unit at the top of the tank.

Make note of the connections. Press the white and green tabs to release the connector locks.

1000007

B

A Clip B Sending Unit Inlet Strainer

9. Remove the clip that secures the strainer and remove the strainer from the sending unit.

B

10. Clean the strainer with clean DEF, distilled water or demineralized water.

A

11. Reinstall the strainer in the sending unit.

12. Clean the inside of the tank with clean DEF, distilled water or demineralized water. Thoroughly drain the tank after cleaning.

13. Remove and clean the DEF fill strainer. Refer to DIESEL EXHAUST FLUID TANK – STRAINER, CLEANING in THIS SECTION. 14. Reinstall the sending unit and the DEF fill strainer.

700052

A DEF Tank Retention Bolts B DEF Tank Bracket Nut

4. Remove the DEF tank access panel on the right side of the machine. Remove the DEF tank retention bolts and the DEF tank bracket nut.

15. Reinstall the DEF tank into the machine.

16. Reconnect the DEF lines and electrical connector to the sending unit.

17. Replace the DEF tank retention bolts.

18. Replace the DEF tank access panel

5. Slide the DEF tank out through the access panel opening.

6. Use a large oil filter wrench to turn the DEF sending unit counterclockwise approximately 10 degrees.

3.61

Lubrication and Maintenance

Tigercat 720G/724G/726G Feller Buncher

CLEANING THE DEF FILL STRAINER – EARLIER DESIGN

CLEANING THE DEF FILL STRAINER – PSB 2517

Remove and clean particles and debris from the DEF fill strainer every 500 hours.

Remove and clean particles and debris from the DEF fill strainer every 500 hours.

1. Clean the area around the outside of the fill cap to prevent DEF contamination.

1. Clean the area around the outside of the fill cap to prevent DEF contamination.

A

A

B 802174

1000001

A Area under the Fill Cap

2. Remove the fill cap. Clean the area under the fill cap to prevent DEF contamination.

A

A Fill Cap B Fill Neck

2. Remove the fill cap.

3. Clean the area under the fill cap to prevent DEF contamination.

1000002

A Fill Strainer

3. Rotate the fill strainer counterclockwise and pull it straight out.

4. Hold the flap open, invert the strainer and lightly tap against a clean, hard surface to dislodge and remove any particles.

5. Rinse the fill strainer with clean DEF, distilled water or demineralized water.

6. Replace the clean strainer. Turn clockwise to tighten.

802169

4. Pull the fill strainer straight out.

7. Install the fill cap.

3.62

Tigercat 720G/724G/726G Feller Buncher

Lubrication and Maintenance FILLING THE DEF TANK

A

1. Park the machine as described in PARKING THE MACHINE in SECTION 1.

2. Clean the area around the top of the fill cap to prevent DEF contamination.

3. Remove the fill cap. Clean the area under the fill cap to prevent DEF contamination.

NOTICE Do NOT remove the DEF fill strainer when filling the tank. Contamination of the DEF can occur.

802170

A Fill Strainer

5. Invert the strainer and lightly tap it against a clean, hard surface to dislodge and remove any particles.

6. Rinse the fill strainer with clean DEF, distilled water or demineralized water.

7. Install the clean fill strainer into the fill neck.

8. Install the fill cap.

IMPORTANT! Avoid contamination of DEF when performing maintenance on the system as this may cause costly damage to SCR system components and will affect the proper operation of the aftertreatment system and the engine.

4. Insert the filling container spout into the flap on the top of the fill strainer and fill the tank. DO NOT remove the fill strainer to fill the tank.

NOTE: To avoid contamination, do not re-use DEF. Fill the tank with new DEF only. Refer to DIESEL EXHAUST FLUID (DEF) in THIS SECTION for DEF specifications.

NOTE: A section of the DEF tank remains empty when the DEF level reaches the strainer to accommodate DEF expansion when it freezes.

5. Install the fill cap.

3.63

Lubrication and Maintenance

Tigercat 720G/724G/726G Feller Buncher

DIESEL EXHAUST FLUID (DEF) DEF is used by the DOC/SCR aftertreatment system to lower the concentration of nitrogen oxides from the diesel engine exhaust.

DEF is an aqueous urea solution with 32.5% high purity urea and 67.5% deionized water.

NOTE: DEF may also be referred to as AUS32 or AdBlue. All DEF must be American Petroleum Institute (API) Certified DEF or meet ISO 22241 specifications.

IMPORTANT! Store DEF between −5°C (23°F) and 30°C (86°F) and out of direct sunlight to maximize shelf life and to avoid DEF quality problems caused by improper storage.

IMPORTANT! Avoid contamination of the DEF when filling the tank as this may cause costly damage to the aftertreatment system components and affect the proper operation of the aftertreatment system and the engine.

NOTE: Extremely low levels of DEF or DEF quality problems will generate computer messages and these conditions may affect engine performance and damage to the DOC/SCR aftertreatment system components.

Take action to correct DEF quality problems immediately.

WARNING Use only Diesel Exhaust Fluid (DEF) which meets ISO 22241 specifications. DO NOT fill the DEF tank with any other fluid.

DEF is injected into the exhaust gas stream during normal operation of the Selective Catalytic Reduction (SCR) aftertreatment system.

Use of other fluids may cause component damage, or a fire risk which could result in death or serious injury.

NOTE: When the engine is stopped, all DEF is pumped back to tank before the engine power system is turned OFF. This process takes approximately 90 seconds.

Refer to AFTERTREATMENT SYSTEM in THIS SECTION for more information regarding the use of DEF and its function in the DOC/SCR aftertreatment system.

NOTE: DEF quality problems may result in derating of engine performance to meet emission standard requirements. Take action immediately to correct DEF quality problems to avoid affecting engine performance and damage to the DOC/SCR aftertreatment system components.

Refer to COMPUTER – MESSAGES in SECTION 2.

3.64

Tigercat 720G/724G/726G Feller Buncher

Lubrication and Maintenance

DIESEL EXHAUST FLUID (DEF) HANDLING AND STORAGE

AVOID DEF QUALITY PROBLEMS WITH PROPER HANDLING PRACTICES

DEF is an aqueous urea solution with 32.5% high purity urea and 67.5% deionized water.

Most DEF quality problems can be avoided entirely with a little care and proper handling of DEF.

NOTE: DEF may also be referred to as AUS32 or AdBlue and must meet ISO 22241 specifications. Use only DEF meeting this standard.

WHEN FILLING THE DEF TANK: • Clean the area around the fill cap and avoid introducing contaminants into the DEF tank when filling.

It is important to avoid contamination of DEF as this may cause costly damage to SCR system components and affect the proper operation of the SCR system and the engine.

• Use only DEF that meets ISO 22241 specifications.

The use of any other fluid will contaminate the aftertreatment system and will pose a safety hazard.

When a problem with DEF quality is detected information messages is sent to the computer display.

PROPER STORAGE CONTAINERS • To prevent contaminants from affecting DEF quality, handle DEF only in storage, transport and filling containers intended exclusively for that purpose.

NOTE: DEF quality problems may result in derating of engine performance to meet emission standard requirements. Take action immediately to correct DEF quality problems to avoid affecting engine performance and damage to SCR aftertreatment system components.

• Polyethylene or stainless steel containers are recommended. Refer to DEF MANUFACTURER'S DOCUMENTATION for recommendations.

• DEF is corrosive to metals other than stainless steel.

Transport in metal containers other than stainless steel will result in contamination.

Refer to COMPUTER – CRITICAL MESSAGES in SECTION 2.

For safety information refer to DIESEL EXHAUST FLUID (DEF) in SECTION 1.

PROPER STORAGE CONDITIONS DEF quality problems can often be avoided with proper storage and handling practices to maximize shelf life.

• Store DEF between −5°C (23°F) and 30°C (86°F).

• Store DEF in areas out of direct sunlight.

• Store DEF away from heat sources.

• DEF shelf life is limited. Use DEF on a first in-first out basis, within DEF manufacturer's recommended shelf life limits. DEF beyond manufacturer's recommended shelf life limits may not meet ISO 22241 specifications.

3.65

Lubrication and Maintenance

Tigercat 720G/724G/726G Feller Buncher

HEATER VALVE

Heating is switched OFF when: • DEF tank temperature >16°C (61°F) • Supply module temperature >10°C (50°F)

A

• Ambient air temperature >−4°C (25°F) Heating is switched ON when: • DEF tank temperature < -15°C (-59°F) • Supply module temperature: +8°C (46°F) • Ambient air temperature: −5°C (23°F) When conditions require heating the system will thaw DEF within 30 minutes of engine start for proper operation of the aftertreatment system.

724G-008

A Heater Valve

NOTE: When the engine is stopped all DEF is pumped back to tank before the engine power system is turned OFF. This process takes approximately 90 seconds.

A B

C

630E-265

A B C D

D

HEATED DEF SUPPLY LINES The DEF supply lines are heated by an electrical wire element built into each hose. The electrical connector is at the Supply Module end of the line. There are three heated lines and two types. There is one 24V line and two 12V lines. The lines can be identified by the electrical connector. The 24V line has a male connector and the 12V lines have female connectors.

Connector Coolant Outlet Coolant Inlet Coolant Bypass

A

The heater valve is located inside the pump compartment door above the pump drive gearbox.

The heater valve controls the flow of engine coolant through the DEF tank heater coil and the supply module when heating of the DEF is required. The heater valve also controls the constant flow of engine coolant to the dosing module for cooling purposes. This machine is equipped with electrically heated DEF supply lines.

IMPORTANT! If removing the heater valve, care should be taken to reconnect the cooling hoses correctly. The heater valve is directional and if the hoses are connected incorrectly the DEF may overheat which will reduce its quality.

DEF freezes at −11°C (12°F).

Temperature sensors signals control the operation of both the electrically heated DEF supply lines and the heater valve which, depending on the temperature, opens or closes the flow of hot engine coolant to the heater coil in the DEF tank and supply module.

B T250D-117

24 V Heated DEF Line A

C T250D-118

12 V Heated DEF Line

A DEF Line B Male Electrical Connector C Female Electrical Connector

The two 12V lines run from the Supply Module to the DEF Tank. These two lines are connected electrically in series, so if any one of these two lines fail the element in the other line would not function. For full description of wiring, refer to SECTION 6 of the SERVICE MANUAL.

3.66

Tigercat 720G/724G/726G Feller Buncher DENOX 2.2 DOSING SYSTEM

Lubrication and Maintenance EXHAUST FLAP

A A

724G-005 724G-010

A DENOX (Part of Engine ECU)

DENOX 2.2 control system is incorporated into the engine control unit (ECU).

The DOC/SCR aftertreatment system is electronically managed by the DENOX 2.2 control system. The ECU calculates and adjusts the flow rate of the DEF solution into the system based on current engine speed, torque delivered, exhaust temperature, amount of nitrogen oxides and ammonia present and the humidity levels in incoming air.

A Exhaust Flap

An exhaust flap is located at the exhaust outlet from the engine. The exhaust flap is used to regulate temperature of the exhaust entering the diesel oxidation catalyst (DOC) to optimum levels for proper operation of the aftertreatment system.

3.67

Lubrication and Maintenance DIESEL OXIDATION CATALYST (DOC)

Tigercat 720G/724G/726G Feller Buncher DEF SUPPLY MODULE

A

A

726G-001

720G B

A

700079

724G-007

724G and 726G

A Diesel Oxidation Catalyst

The diesel oxidation catalyst (DOC) is located in the pump compartment upstream of the catalytic converter (SCR and CUC) and at its outlet incorporates the mixer tube and the mounting for the dosing module.

The DOC uses oxidation at high temperatures to convert carbon monoxide (CO), hydrocarbons (HC) and the soluble organic fraction (SOF) of diesel particulates into inert compounds, carbon dioxide (CO2) and water vapour (H2O).

A Supply Module B DEF Tank

The DEF supply module is located in the pump compartment on the right side of the machine.

The supply module pump picks up the DEF solution from the tank and sends it under pressure to the dosing module, mounted on the DOC. DEF is injected into the exhaust at the outlet of the diesel oxidation catalyst and upstream of the catalytic converter.

In addition the DOC converts nitrogen oxide (NO) into nitrogen dioxide (NO2). Increased NO2 levels enhance the performance of the SCR catalyst at low temperatures and increase the effectiveness of the DOC/SCR aftertreatment system as a whole.

3.68

Tigercat 720G/724G/726G Feller Buncher

Lubrication and Maintenance

DEF DOSING MODULE FILTER

REMOVE DEF DOSING MODULE FILTER

The DEF dosing module filter should be replaced as part of scheduled maintenance every 250 hours.

1. Park the machine on level ground. Refer to PARKING THE MACHINE in SECTION 1.

If DEF and/or aftertreatment fault codes have occurred then Tigercat recommends performing a DEF flushing test and Urea Dosing System Test (UDST) at every DEF dosing module filter change to ensure proper operation of the DEF supply module.

2. Make sure the engine is at operating temperature.

3. Wipe clean the area around the DEF supply module and filter including the supply module ports with particular attention to the inlet port and filter cap to avoid introducing contamination into the filter housing while performing this procedure.

If no DEF and/or aftertreatment fault codes have occurred then only the DEF dosing module filter replacement is required.

4. Place container below to catch the spills.

CHANGING DEF DOSING MODULE FILTER, DEF FLUSHING TEST AND UDST (UREA DOSING SYSTEM TEST) TOOLS REQUIRED • 27 mm (1 1⁄16 in) wrench • Container to catch DEF and flushing water • Clean distilled/demineralized water • 1 litre (0.25 US gal) plastic water bottle with hose attached* • Laptop computer with Tigercat by FPT E.A.SY. engine diagnostic software to run UDST test*

630E-281

5. Turn the filter cover counterclockwise to remove from the supply module. Use a 27 mm (1 1⁄16 in) wrench.

• PT-Box* IMPORTANT! DO NOT contaminate the DEF when performing maintenance on the system as this may cause costly damage to SCR system components and affect the proper operation of the aftertreatment system and the engine. *Items required if performing a DEF flushing test and UDST.

630E-282

6. Remove the equalizing element and note the colour of the filter inside (black or grey).

3.69

Lubrication and Maintenance

Tigercat 720G/724G/726G Feller Buncher

630E-285

7. Find the filter removal tool provided with the replacement parts select the correct edge BLACK (B) for black filters or GREY (G) for grey filters.

630E-287

10. Clean surfaces with distilled/demineralized water only to avoid DEF contamination.

Check the area around the filter for cracks. If cracks are found the supply module must be replaced.

11. Thoroughly clean the filter cover to avoid introducing contamination.

DEF FLUSHING TEST A 630E-284

8. Insert the tool edge completely until a click is felt or heard.

630E-286

9. Pull out the filter, using a tool in the slot on the filter removal tool if required.

630E-333

A Inlet Port

1. Disconnect the DEF hose from the inlet port of DEF supply module.

3.70

Tigercat 720G/724G/726G Feller Buncher

Lubrication and Maintenance

2. Fill the plastic bottle with distilled/demineralized water.

A

630E-331

7. Distilled water will be drawn from the bottle and flushed through the DEF supply module. Suction may begin to collapse the bottle and water flow out the bottom of the module will increase.

630E-332

A Inlet Port

3. Connect the water bottle hose to the inlet port of the DEF supply module.

630E-328

8. The results of the UDST will show a flat line for DEF pressure (red line) because the pump cannot build pressure without the filter in place.

9. Repeat the UDST test a second time to ensure the supply module is thoroughly flushed and working correctly.

10. When the UDST flushing procedure has been performed twice successfully remove the bottle and hose.

630E-334

4. Raise the water bottle above the DEF supply module.

11. Reinstall the DEF module inlet hose.

5. A small amount of water will flow through the supply module and out the bottom where the filter has been removed.

6. With the aid of an assistant run a UDST test from the laptop computer. Refer to PT BOX MANUAL FOR UDST test information.

3.71

Lubrication and Maintenance REPLACE FILTER

Tigercat 720G/724G/726G Feller Buncher 4. Check that all personnel are clear of the machine before starting the engine.

5. Insert the ignition key and turn to the RUN position.

6. Sound horn to warn personnel of machine start-up.

7. Start the engine.

8. Check for leaks.

9. Turn OFF the engine.

630E-288

1. Install the new filter. Lubricate the o-rings on the filter with clean DEF solution for easy installation.

IMPORTANT! DO NOT contaminate the DEF when performing maintenance on the system as this may cause costly damage to SCR system components and affect the proper operation of the aftertreatment system and the engine.

WARNING Use only diesel exhaust fluid (DEF) which meets ISO 22241 specifications. NEVER fill the DEF tank with any other fluid.

DEF is injected into the exhaust gas stream during normal operation of the Selective Catalytic Reduction (SCR) aftertreatment system.

630E-289

2. Install the new equalizing element.

Use of other fluids may cause component damage, or a fire risk which could result in death or serious injury.

NOTE: The equalizing element must be replaced with each filter change.

630E-290

3. Reinstall the clean filter cover, tighten to 20 Nm (15 lbf-ft). Use a 27 mm (1 1⁄16 in) wrench.

3.72

Tigercat 720G/724G/726G Feller Buncher

Lubrication and Maintenance

UDST (UREA DOSING SYSTEM TEST) 1. With the aid of an assistant run a UDST test from the laptop computer. Refer to PT Box Manual for UDST test information.

630E-327

2. If the supply module is functioning correctly the test should show a characteristic curve as shown above, DEF pressure (red line).

3. A confirmation screen will indicate System is OK if the supply module is functioning correctly.

4. Repeat the UDST test a second time to confirm results.

630E-330

5. If the UDST test passes twice the supply module is OK.

630E-329

6. If the UDST test fails twice note the error mode(s) and contact customer service.

3.73

Lubrication and Maintenance DOSING MODULE (DEF INJECTOR)

Tigercat 720G/724G/726G Feller Buncher MIXER TUBE

A

724G-065

720G

A

630E-275

A

A Mixer Tube

The mixer tube is incorporated into the outlet of the DOC upstream from the catalytic converter.

724G-009

A Dosing Module

724G and 726G

The dosing module is mounted on the DOC outlet upstream of the catalytic converter. The dosing module injects DEF into the exhaust stream.

The high-turbulence mixer tube is used to mix the DEF solution and exhaust gases together before they enter the catalytic converter.

The dosing module is cooled by a constant flow of engine coolant supplied by the heater valve to maintain optimum temperature for the aftertreatment process.

3.74

Tigercat 720G/724G/726G Feller Buncher CATALYTIC CONVERTER

A

Lubrication and Maintenance The exhaust gases and ammonia at the proper reaction temperature, are introduced into the SCR, where the second phase of the process takes place. By reacting with the oxygen in the exhaust gases the ammonia is converted into free nitrogen (N2) and water vapour (H2O).

Finally the high efficiency catalytic converter incorporates a clean up catalyst (CUC) which reduces any excess ammonia (NH3) which may result from the SCR process.

720G-002

720G

A

724G-006

A Catalytic Converter

724G and 726G

The catalytic converter is located above the engine in the engine compartment. Chemical reactions inside the catalytic converter reduce nitrogen oxides (NOx) in the exhaust gas.

The catalytic converter is equipped with soundproofing material and replaces the exhaust silencer. It incorporates both the selective catalytic reduction (SCR) and the cleanup catalyst (CUC) components of the aftertreatment system.

The first phase of the SCR process takes place between the DOC and the SCR. High temperature exhaust gas evaporates the DEF solution instantly and, by hydrolysis, converts it into ammonia (2NH3) and carbon dioxide (CO2).

Evaporation of the solution lowers exhaust gas temperature, bringing it closer to the optimum temperature required by the process.

3.75

Lubrication and Maintenance

Tigercat 720G/724G/726G Feller Buncher

HUMIDITY AND TEMPERATURE SENSOR

200101

The humidity sensor is located on the air intake just past the air cleaner.

This sensor monitors the temperature and humidity of intake air sending signals to the DENOX 2.2 control system. This information is used to calculate the amount of DEF to be injected into the system.

TEMPERATURE SENSORS

M00013

Temperature sensors are mounted at the inlet of the DOC, the inlet of the catalytic converter and the outlet of the catalytic converter. These three sensors send exhaust temperature signals to the DENOX 2.2 control system.

The control system uses this information to calculate the amount of DEF to be injected into the system.

NOTE: All three temperature sensors are identical. Note the location for analysis purposes when replacing a temperature sensor.

3.76

Tigercat 720G/724G/726G Feller Buncher

Lubrication and Maintenance

NH3 SENSOR

NOx SENSORS A

A

B

B

630E-264 620E-088

A Electronic Control Unit B Sensor

A Electronic Control Unit B NOx Sensor

The NH3 sensor detects and sends information about the NH3 levels in the exhaust. This information is used to calculate the amount of DEF to be injected into the system and to monitor DOC/SCR aftertreatment system operation.

There are two NOx sensors and two NOx sensor ECU's in the aftertreatment system.

The NOx sensors detect and send information about the dosing of DEF solution and the efficiency of the catalytic converter to the DENOX 2.2 control system.

This information is used to calculate the amount of DEF to be injected into the system and to monitor DOC/SCR aftertreatment system operation.

Each NOx sensor consists of a ceramic sensor and an electronic control unit linked by a cable. The sensor detects the concentration of nitrogen oxides in the exhaust.

A

The sensor, cable and control unit are considered to be one part for service/replacement purposes.

700489

A NH3 Sensor

NOTE: Cable length cannot be changed as this will affect the proper operation of the sensor.

The NH3 sensor is mounted at the outlet of the catalytic converter.

A

A

700487 700490

A NH3 Sensor ECU

A Inlet NOx Sensor – Front of DOC inlet tube

The NH3 sensor ECU is mounted on the upper left side of the pump compartment.

The inlet NOx sensor is mounted upstream of the DOC.

Refer to APPROVED ANTI-SEIZE PASTES FOR EXHAUST / AFTERTREATMENT LINE (TIGERCAT BY FPT TIER 4F ENGINES) in THIS SECTION. 3.77

Lubrication and Maintenance

Tigercat 720G/724G/726G Feller Buncher APPROVED ANTI-SEIZE PASTES FOR EXHAUST/AFTERTREATMENT SENSORS (TIGERCAT FPT TIER 4F ENGINES) If replacement of these components is necessary in the field, NOx sensors and NH3 sensors are precoated at the factory with the required anti-seize. The application of anti-seize should not be required.

In the event anti-seize must be re-applied, only the following approved products should be used:

A

• NOx sensors – Weicon® High Tech Anti-seize only

700486

• NH3 sensor – Loctite® X203 Dry Film Moly Anti-Seize

A Inlet NOx Sensor ECU

The inlet NOx sensor ECU is mounted on the right side of the pump compartment above the cutter control valve.

A

700488

A Outlet NOx Sensor

The outlet NOx sensor is mounted at the outlet of the catalytic converter.

A

700487

A Outlet NOx Sensor ECU

The outlet NOx sensor ECU is mounted next to the NH3 sensor ECU on the upper right side of the engine compartment.

3.78

Tigercat 720G/724G/726G Feller Buncher

PRESSURIZED WATER SYSTEM MAINTENANCE The pressurized water system is located under the operator's seat.

Check the system pressure every 8 hours. The pressure gauge on the side of the seat should read 4 bar (60 psi).

A

B

Lubrication and Maintenance SYSTEM TEST This system should be tested every 125 hours by turning the shut-off valve ON and expelling water from the hose end nozzle. A very forceful discharge of water should be obtained. If the water does not come out with force (with pressure gauge reading 4 bar [60 psi]) the system needs to be PURGED. Refer to PURGING PRESSURIZED WATER SYSTEM in THIS SECTION. After testing, refill the tank and pressurize to 4 bar (60 psi). Refer to the following FILL AND CHARGE PRESSURIZED WATER SYSTEM procedure. This procedure should be carried out yearly.

700115

C

196-9A

A Hose B Water Shut-Off Valve (Shown Closed) C Pressure Gauge

OPERATION Turn the hand operated ball valve (shut-off valve) under the seat to the ON position to draw water from the pressurized holding tank at the rear of the machine.

When not in use turn the water supply OFF at this valve and relieve the pressure in the rubber hose.

Refer to FIRE PREVENTION in SECTION 1.

3.79

Lubrication and Maintenance

Tigercat 720G/724G/726G Feller Buncher

FILL AND CHARGE PRESSURIZED WATER SYSTEM 1. Open water shut-off valve and completely discharge all water and compressed air from the tank via the hose end nozzle.

CAUTION Never remove fill plug before de-pressurizing tank or injury may result. This fill plug incorporates a vent hole to release air pressure from the tank before the threads disengage. DO NOT replace this fill plug with any substitute.

5. Install water tank fill plug in tank.

NOTE: The water tank fill plug is a special plug designed to withstand pressurization of the water tank. DO NOT substitute.

6. Pressurize the system to 4 bar (60 psi) as indicated on pressure gauge by connecting an air hose to air charge valve beside the pressure gauge.

7. Open the water shutoff valve 8. Discharge about 2 L (1/2 US gal) of fluid into an empty antifreeze jug or other suitable container.

There will be significant foaming as the fluid is discharged into the jug. Continue until a very forceful flow is obtained and any contamination that may have been in the tank is flushed from the system.

9. Check fluid in the jug for contamination. If fluid is dirty dispose of it properly.

A

10. Close the water shut-off valve.

11. Release pressure and fluid from the hose.

12. Pressurize the system to 4 bar (60 psi) as indicated on pressure gauge by connecting an air hose to air charge valve beside the pressure gauge.

13. Return the hose to its storage location

700069

A Water Tank Fill Plug

2. Slowly unscrew the water tank fill plug two full turns.

Any remaining air in the tank will be heard expelling from the vent hole in the fill plug. DO NOT remove the fill plug until all air has been expelled.

3. Close the water shut-off valve in the cab.

4. Fill the tank with water. DO NOT fill past the bottom of the water tank fill plug port.

Machine

Total Tank Volume L (gal)

Initial Dry Fill Volume L (gal)

Refill Volume L (gal)

720G/724G 726G

48.2 (12.7)

35 (9.25)

28 (7.4)

52.8 (13.9)

38.5 (10.2)

31 (8.2)

When temperatures below 0°C (32°F) are anticipated, use a 60/40 solution of Nontoxic RV antifreeze or other suitable antifreeze. Antifreeze solution must meet GM 6038M specifications.

NOTE: Most non-toxic RV antifreeze solutions contain corrosion and algae inhibitors. Therefore it is suggested that this solution be added to the water on a continual basis regardless of temperature conditions.

3.80

Tigercat 720G/724G/726G Feller Buncher

Lubrication and Maintenance

PURGING PRESSURIZED WATER SYSTEM Purging should be carried out whenever the flow of water does not forcefully discharge from the end of the hose with the pressure gauge reading 4 bar (60 psi).

1. Open water shutoff valve and completely discharge all water and compressed air from the tank via the hose end nozzle.

CAUTION Never remove fill plug before de-pressurizing tank or injury may result. This fill plug incorporates a vent hole to release air pressure from the tank before the threads disengage. DO NOT replace this fill plug with any substitute.

2. Slowly unscrew fill plug two full turns. Any remaining air in the tank will be heard expelling from the special fill plug. DO NOT remove fill plug until all air has been expelled.

3. Close the water shutoff valve and add 8 L (2 US gal) of clean water to the tank.

4. Install water tank fill plug.

NOTE: This is a special plug designed to withstand pressurization of the water tank. DO NOT substitute.

5. Pressurize the system to 4 bar (60 psi) as indicated on pressure gauge by connecting an air hose to air charge valve beside the pressure gauge.

6. Open the shutoff valve and completely discharge all the water in the tank via the hose end nozzle.

7. Discharge all the water into an empty antifreeze jug or other suitable container.

There will be significant foaming as the fluid is discharged into the jug. Continue until a very forceful flow is obtained and any contamination that may have been in the tank is flushed from the system.

8. If a forceful discharge was not achieved, repeat the purging procedure. If a second purging does not work, remove lines and check for an obstruction.

9. After the purging operation, fill and charge the system as described in FILL AND CHARGE PRESSURIZED WATER SYSTEM in THIS SECTION.

3.81

Lubrication and Maintenance

CENTER JOINT Prepare the machine as described in PREPARING THE MACHINE FOR MAINTENANCE in SECTION 1 before servicing the center joint.

Tigercat 720G/724G/726G Feller Buncher CENTER JOINT MAINTENANCE AND INSPECTION

CENTER JOINT LUBRICATION

A

B

C

700048

A Front Chassis B Check for Movement in this Joint Area C Rear Chassis A

Visually inspect the center joint pivot for looseness every 1000 hours.

With an observer on the ground, keeping well clear of the center joint area, perform the following test to check for looseness of the center joint.

700056

B

1. Lift the attachment off the ground and then rapidly raise and lower the head several times to bounce the machine.

2. As the machine is bouncing, check for motion between the front and rear chassis frame lugs. Also check for a clunking sound at the center joint area.

3. Movement between front and rear chassis lugs or clunking of the pivot indicates a loose joint and center joint preload must be checked. Refer to SECTION 11 of the SERVICE MANUAL. Take immediate action to correct problems if any symptoms described above are observed.

700057

A Lower Bearing Grease Port B Upper Bearing Grease Port

NOTE: A more precise method using a dial indicator will provide an accurate assessment of the condition of the center joint. Refer to SECTION 11 of the SERVICE MANUAL for details.

Lubricate the center joint upper and lower bearings every 8 hours. This purges the articulation pivot bearings of debris and water.

3.82

Tigercat 720G/724G/726G Feller Buncher

Lubrication and Maintenance

TRANSMISSION The transmission is mounted in the rear chassis behind the center joint. It has one oil reservoir that requires draining and filling.

Check the transmission oil level every 8 hours. Drain and replace the transmission oil every 250 hours.

CHECKING TRANSMISSION OIL LEVEL 1. Park the machine as described in PARKING THE MACHINE in SECTION 1.

A

NOTE: The machine must be level when checking transmission oil level.

B

700020

A

A 2-Speed Transmission Drain Plug – Front B Magnetic Plug – Rear (Hidden)

724G-099

A Transmission Oil Dipstick and Fill

2. Clean around the transmission dipstick/fill tube.

3. Remove the dipstick and read the level.

4. If transmission oil level is low, add transmission oil checking the level regularly with the dipstick. DO NOT overfill.

5. Replace the dipstick.

B

Refer to SERVICE AND LUBRICATION POINTS in THIS SECTION.

DRAINING AND REFILLING TRANSMISSION 1. Park the machine as described in PARKING THE MACHINE in SECTION 1.

NOTE: The machine must be level when draining and refilling the transmission.

2. Clean around the dipstick/fill tube.

3. Remove the dipstick.

A

700039

A wideRANGETM Transmission Drain Plug – Rear B Magnetic Plug – Bottom

5. Remove the transmission drain plug and drain the oil into a suitable container for disposal.

6. Remove the magnetic drain plug and clean off any filings that have been collected.

7. Replace the drain and magnetic plugs.

8. Refill the transmission with the correct quantity of transmission fluid.

Refer to SERVICE AND LUBRICATION POINTS in THIS SECTION for transmission oil capacity and recommended transmission oils.

4. Remove the belly pan closest to the center joint on the rear chassis.

9. Replace the dipstick.

3.83

Lubrication and Maintenance

PUMP DRIVE GEARBOX The pump drive gearbox is located in the pump compartment. It has one gear oil reservoir that requires draining and filling.

Tigercat 720G/724G/726G Feller Buncher DRAINING AND REFILLING PUMP DRIVE GEARBOX NOTE: Drain the pump drive gearbox when the oil is cold. This will allow particulate that has settled to the bottom of the pump drive gearbox to be removed when the gear oil is drained.

Check the pump drive gearbox oil level every 8 hours.

Drain and replace the pump drive gearbox gear oil every 250 hours.

1. Park the machine on level ground. Refer to PARKING THE MACHINE in SECTION 1.

CHECKING PUMP DRIVE GEARBOX OIL LEVEL 1. Park the machine on level ground. Refer to PARKING THE MACHINE in SECTION 1.

NOTE: The machine must be level when checking pump drive gearbox oil level.

NOTE: The machine must be level when draining and refilling the pump drive gearbox.

2. Clean around the dipstick and fill plug.

3. Remove the gearbox breather.

NOTE: DO NOT remove the drain plug until the breather has been removed.

4. Locate the gearbox drain hose and remove the drain plug.

5. Drain the gear oil into a suitable container.

A

NOTE: Dispose of the waste gear oil according to local regulations.

B

6. Remove the magnetic plug on the bottom of the gearbox and clean off any filings that have collected.

7. Install the gearbox drain plug and magnetic plug.

8. Fill the gearbox with the correct quantity of gear oil.

Refer to SERVICE AND LUBRICATION POINTS in THIS SECTION for gearbox oil capacity and recommended gear oils.

700086

A Pump Drive Gearbox Dipstick B Pump Drive Gearbox Breather

9. Install and tighten the breather.

2. Clean around the dipstick.

3. Remove the dipstick and read the level. The fluid level should fall between the ADD and FULL marks on the dipstick. Wait at least 5 minutes after stopping the engine before taking the reading.

4. If gearbox oil level is low, remove the fill plug and carefully add oil checking the level regularly with the dipstick. DO NOT overfill.

Refer to SERVICE AND LUBRICATION POINTS in THIS SECTION for gearbox oil capacity and recommended gearbox oils.

5. Replace and tighten the fill plug.

6. Replace the dipstick.

3.84

Tigercat 720G/724G/726G Feller Buncher

Lubrication and Maintenance

PARKING BRAKE A A G

M726E-044

F

A Parking Brake Switch – Control Panel

H

D

B

E

C

A parking brake switch on the right armrest control panel applies and releases the brake. The brake will also be automatically applied when the cab door is open or if the engine is not running. See also CONTROL PANELS – RIGHT ARMREST – PARKING BRAKE SWITCH in SECTION 2 or more details regarding parking brake switch operation.

724E-007 700096

A B C D E F G H

Parking Brake – Hydraulically Deactivated

Parking Brake Springs Shaft Stationary Discs Rotating Discs Front Axle Rear Axle Transmission (wideRANGETM Shown)

The parking brake is installed in the driveline between the transmission and the front axle.

Five rotating discs are splined to the brake shaft and six stationary discs are held in place in the brake housing.

The brake is spring-applied, hydraulically-released.

Refer to SECTION 9 of the SERVICE MANUAL for complete details of the parking brake.

3.85

Lubrication and Maintenance

Tigercat 720G/724G/726G Feller Buncher DRAINING AND REFILLING PARKING BRAKE

A

1. Park the machine as described in PARKING THE MACHINE in SECTION 1.

NOTE: The machine must be level and the oil must be warm when draining and refilling.

2. Allow machine to sit for at least 30 minutes before draining the oil from the brake housing to allow contaminants in the oil to settle.

A

B 700492

A Front Chassis B Bottom Cover Plate – Front Chassis

The parking brake is located in the front chassis.

Remove the front chassis bottom cover plate to access the brake.

WARNING Release pilot system pressure before checking parking brake oil level. Refer to RELEASE PILOT SYSTEM PRESSURE in SECTION 1 for instructions.

CHECKING PARKING BRAKE OIL LEVEL 1. Park the machine as described in PARKING THE MACHINE in SECTION 1.

B 700493

A Fill/level Plug – Parking Brake B Drain Plug – Parking Brake

3. Clean around the fill/level and drain plugs.

4. Remove the housing fill/level plug.

NOTE: DO NOT remove the drain plug until the fill/ level plug has been removed.

NOTE: The machine must be level when checking the parking brake oil level.

2. Clean around the fill/level plug and remove.

3. Wearing oil-resistant protective gloves, insert a finger into the fill/level plug hole to determine the oil level. The correct oil level is at the bottom of the fill/ level plug holes.

5. Remove the drain plug and drain the oil into a suitable container for disposal. Access to the drain plug is through the hole in the bottom of the front chassis.

6. Replace and tighten the drain plug.

4. Place a drain pan under the fill/level hole. Pump new oil into the fill/level hole until oil starts weeping out the hole. DO NOT overfill.

7. Place a drain pan under the fill/level hole. Pump new oil into the fill/level hole until oil starts weeping out the hole. DO NOT overfill.

5. When the oil stops weeping replace the fill/level plug.

8. Replace and tighten the fill/level plug.

9. Check the drain and fill/level plugs for leaks.

3.86

Tigercat 720G/724G/726G Feller Buncher

Lubrication and Maintenance

DRIVESHAFTS

MIDDLE SHAFT SLIP SPLINE LUBRICATION

When operating in extremely wet or dusty conditions or when the regular service schedule has been neglected, insufficient lubrication to the spline area of the middle driveshaft will result in premature wear. In addition old grease often forms into a semi-solid, rubber-like plug preventing the purging of contaminants (water, dirt, sand, etc.) through the slip spline seal.

Lubricate the middle driveshaft every 8 hours.

A

The most common cause of joint and slip spline failure is lack of proper lubrication.

FRONT AND REAR SHAFT SLIP SPLINE LUBRICATION

B

Lubricate the front and rear driveshafts every 125 hours.

A

700027

A Grease Nipple B Relief Fitting (Not shown – 180 Degrees from Grease Nipple)

B

1. Park the machine on level ground. Refer to PARKING THE MACHINE in SECTION 1.

2. Articulate the machine FULLY to the right.

3. Block the wheels and allow machine to cool.

4. Apply grease to the grease nipple until new, clean grease exits from the relief fitting.

Check to see if grease is exiting from the relief fitting. If grease does not exit from the relief fitting, remove the relief fitting and apply grease at the grease nipple. If grease flows out of relief fitting hole replace relief fitting.

700028

A Grease Fitting B Relief Hole in End of Shaft

1. Apply grease to grease nipple until new, clean grease appears at the relief hole at yoke end of slip spline.

If grease does not exit from the relief fitting hole, remove driveshaft and inspect for hardened grease build up, rust or other contaminants within the driveshaft. Repair or replace driveshaft.

2. Plug or cover relief hole and continue to apply pressure to grease nipple until new, clean grease appears at slip spline seal.

3. If grease does not appear at slip spline seal and continues to exit from the covered relief hole, remove the driveshaft and inspect for hardened grease build up, rust or other contaminants within the driveshaft. Repair or replace the driveshaft.

Refer to SECTION 8 of the SERVICE MANUAL for complete details regarding driveshaft installation.

3.87

Lubrication and Maintenance

Tigercat 720G/724G/726G Feller Buncher

DRIVESHAFT INSTALLATION D

A

F

C E

B

Torque all yoke bolts to 50-66 N-m (37-49 lbf-ft) – lubricated.

NOTE: Yoke bolts on axles are M10-1.5 socket head. All other driveshaft yoke bolts are 3/8-24 UNF hex head.

700097

A Front Driveshaft B Middle Driveshaft C Rear Driveshaft

D U-Joint (6 total) E Front Axle F Rear Axle

3.88

Tigercat 720G/724G/726G Feller Buncher

AXLE LUBRICATION Drain and replace the oil in the axles every 1000 hours.

NOTE: Warranty coverage of powertrain components is contingent on performance of regular oil sampling at the owner’s expense during the warranty period. Refer to FLUID ANALYSIS PROGRAM in THIS SECTION for details.

REAR AXLE – LIMITED SLIP ADDITIVES The rear axle is equipped with brakes. It is permissible to use a limited slip additive in the rear axle to reduce brake chatter noise. DO NOT exceed the maximum recommended amount of additive as this may cause a loss of differential lock slipping torque and brake holding torque. Refer to SERVICE AND LUBRICATION SCHEDULE in THIS SECTION for additive recommendation details.

Lubrication and Maintenance 6. Wait 5 minutes and check the level in both sides of the axle. Continue until the oil levels are correct in both axle housings.

7. When the oil stops weeping replace both fill/level plugs.

DRAINING AND REFILLING AXLES 1. Park the machine as described in PARKING THE MACHINE in SECTION 1.

NOTE: The machine must be level and the oil must be warm when draining and refilling.

2. Allow axles to sit for at least 30 minutes before draining the oil from the housings to allow contaminants in the oil to settle.

3. Clean around all fill/level and drain plugs.

4. Remove both housing fill/level plugs (one per housing).

NOTE: DO NOT remove the drain plugs until the fill/ level plugs have been removed.

CAUTION

5. Remove the differential drain plug and drain the oil into a suitable container for disposal.

6. Clean off any filings collected on the magnet of the drain plugs.

7. Replace and tighten the differential drain plugs.

Fluid spray hazard. Contact with fluid under pressure may cause injury.

Pressure may build up inside axle due to temperature changes. Use caution when removing drain and fill plugs, slowly loosen plug to relieve pressure before removing completely.

CHECKING AXLE OIL LEVEL 1. Park the machine as described in PARKING THE MACHINE in SECTION 1.

NOTE: The axles must be level when checking the oil level.

8. Place drain pans under the fill/level holes. Pump new oil into one of the levels/fill holes until oil starts weeping out the hole. DO NOT overfill.

Refer to SERVICE AND LUBRICATION POINTS in THIS SECTION for oil capacity and recommended gear oils.

9. Replace the axle housing fill/level plugs.

10. Check all drain and fill/level plugs for leaks.

11. Run axles for at least 10 minutes to remove trapped air in confined spaces.

12. Remove the fill/level plugs, recheck oil level and top up if required.

2. Clean around the fill/level plugs.

3. Remove both fill/level plugs on each axle.

4. Wearing oil-resistant protective gloves, insert a finger into the fill/level plug hole to determine the oil level. The correct oil level is at the bottom of the fill/ level plug holes.

5. Place drain pans under the fill/level holes. Pump new oil into one of the levels/fill holes until oil starts weeping out the hole. DO NOT overfill.

3.89

Lubrication and Maintenance

C

Tigercat 720G/724G/726G Feller Buncher

D

G

A

B

E F

700098

A B C D

Axle Drain and Fill Locations– Viewing Front of Machine

Front Axle Rear Axle Front Axle Fill/Level Plug – Right Front Front Differential Drain Plug

E Rear Axle Fill/Level Plug – Right Front F Rear Differential Drain Plug G Rear Axle Pinion Seal

3.90

Tigercat 720G/724G/726G Feller Buncher

Lubrication and Maintenance

C

D

B

A

700099

Axle Drain and Fill Locations– Viewing Rear of Machine

A Front Axle B Rear Axle C Rear Axle Fill/Level Plug – Left Rear

D Front Axle Fill/Level Plug – Left Rear E Front Axle Pinion Seal

3.91

E

Lubrication and Maintenance

Tigercat 720G/724G/726G Feller Buncher

TRAVEL SPEED CONTROL LEVER ADJUSTMENT

A

FRICTION SETTING PROCEDURE The friction setting on the travel speed control lever is variable and can be adjusted to allow proper operation.

It may require adjustment during normal operation to maintain the set position of the lever, especially at maximum throw.

Before starting work, read and follow all servicing safety precautions in SECTION 1.

1. Park the machine on level ground. Refer to PARKING THE MACHINE in SECTION 1.

2. Block the wheels.

3. Position the lever in the neutral position (pointing straight up).

M726E-045

4. Raise the protective rubber boot from the speed control valve body.

5. Locate the adjustable friction set screw and use a 2.5 mm hex key to tighten, as required.

B

6. Replace the protective rubber boot over the speed control valve body.

C

700053

A Travel Speed Control Lever B Protective Rubber Boot C Adjustable Friction Set Screw

3.92

Tigercat 720G/724G/726G Feller Buncher

Lubrication and Maintenance

START-UP PROCEDURE AFTER MAJOR MACHINE MAINTENANCE

A

This procedure should be followed: • After major service or a rebuild.

• Whenever the machine has been drained of hydraulic oil.

• When any major component has been removed, repaired or replaced.

700065

• If the engine fuel supply has been disconnected or drained, refer to priming fuel system procedure in the ENGINE OPERATION AND MAINTENANCE MANUAL.

B

PRESTART-UP AND FILLING 1. Check oil levels in the pump drive gearbox, engine, transmission and axles.

2. Check coolant level in the radiator/surge tank.

3. Do a final inspection of all fittings and clamps to make sure they are tight and will not leak.

4. Install the articulation lock bar and apply the parking brake.

700066

A Drive Pump Top Case Port Fitting B Attachment Pump Top Case Port Fitting

5. DO NOT start the engine. Purge air from hydraulic system as follows: a. All filters must be in place. b. Loosen the fittings on the top case port of the drive pump and the attachment pump.

These ports will assist in venting air as hydraulic oil is filling the system components. c.

Tighten the fittings when hydraulic oil free of air begins to flow out both fittings.

6. Use the hand fill pump to fill the hydraulic oil tank if the oil level is low, or if it has been drained.

7. Fill all the pumps and motors with pre-filtered hydraulic oil through the highest case drain ports and close the ports.

NOTE: If the axles were drained of oil, refer to DRAINING AND REFILLING AXLES in THIS SECTION and SECTION 8 of the SERVICE MANUAL. NOTE: Changing strainers, filters and replacing the hydraulic oil tends to aerate the oil. For maximum pump life, the machine should sit for 1 hour after servicing to allow entrained air to escape from the oil prior to applying working pressures to the pumps.

8. Proceed to the MACHINE START-UP procedure in THIS SECTION.

3.93

Lubrication and Maintenance

Tigercat 720G/724G/726G Feller Buncher

MACHINE START-UP IMPORTANT! Before beginning this procedure, perform the PRESTARTUP AND FILLING procedure in THIS SECTION. NOTE: When the saw head is attached, re-torque all teeth (refer to ATTACHMENT MANUFACTURER'S DOCUMENTATION). Attach the saw blade guard and insert the saw blade locking pin.

1. Install the articulation lock bar.

Refer to ARTICULATION LOCK BAR in THIS SECTION for instructions.

CAUTION The machine operator must ONLY take directions from the person doing the set-up.

4. Close cab doors and turn the ignition key switch ON. 5. Press and release the interlock reset switch. This will allow pilot oil to circulate and refill the pilot and case drain circuits during the following cranking procedure.

6. Crank the engine for five seconds, then wait for five seconds.

Check the charge pressure gauge during cranking to observe for pressure reading. Repeat five times to pump oil into pumps and system components.

NOTE: If charge pressure gauge does not indicate a rise in pressure, check for possible cause (air in system, leaks, loose hose fittings, pumps not turning, etc.). Repair problem. Repeat steps 4, 5 and 6 until a rise in charge pressure is noticed.

A

B

7. Reconnect ECU chassis multi-pin connector.

8. Turn the ignition key switch to RUN and observe the computer display. Wait for the screen to display the gauges before starting the engine.

724G-010

A Engine ECU B Chassis Multi-Pin Connector

2. Disconnect the engine ECU chassis multi-pin connector to prevent engine from starting.

B

A

724G-035

9. Start the engine.

If charge pressure does not rise within 20 – 30 seconds, turn OFF the engine.

If charge pressure is between 18 – 31 bar (260 – 450 psi), run the engine at LOW speed for 20 minutes. Check engine oil pressure in cab. Refer to COMPUTER – ENGINE MENU in SECTION 2. DO NOT operate any functions.

700054

A Drive Pump B 'M3' Test Port

3. Install a 0 – 70 bar (0 – 1000 psi) gauge on the drive pump 'M3' test port to check the charge pressure.

Observe the gauge closely.

10. With the engine speed at LOW and the parking brake applied (ON), hold the foot brake DOWN and then bleed the rear axle brakes.

3.94

Tigercat 720G/724G/726G Feller Buncher

Lubrication and Maintenance

IMPORTANT! Without a felling head attached, the tilt function can cause damage to the arms. Watch the two link arms very carefully, as they may drop down beside the boom arms and wedge, causing the crank arms to bend. When necessary, lower the boom DOWN, watching closely and tilt FORWARD, again watching the link arms closely.

A

A B

724E-105

A Coolant Level Sight Glass

14. Top up the surge tank with clean engine coolant.

B

C

C

A

700451

A Crank Arm B Link Arm C Boom Arm

Crank, Link and Boom Arms

11. Set engine speed at LOW and run each boom function for two minutes at LOW pressure to purge air from circuit.

NOTE: If the machine was on wheels, the steer and drive functions were not properly purged or flushed. Remove the articulation lock bar and slowly operate the steer function right and left a few times with engine speed at LOW. With the parking brake released slowly operate the drive function forward and reverse a few times at LOW speed.

700044

A Hydraulic Oil Level Sight Gauge B Full Mark C Add Mark

15. With ALL CYLINDERS FULLY RETRACTED, check hydraulic oil level.

16. If required, top up the hydraulic oil tank with clean oil using the oil fill pump. For operating instructions see HYDRAULIC OIL HAND FILL PUMP in THIS SECTION. 17. Remove the gauge from the 'M3' test port on drive pump. Clean up any spilled oil.

NOTE: If possible, allow the machine to stand for four to six hours before setting any of the operating pressures. This will allow any air bubbles in the oil to escape and is a good time to check for leaks.

12. Set engine speed at HIGH and run each function again for two minutes to flush the circuit.

13. Set engine speed at LOW and turn OFF the engine.

18. Recheck hydraulic oil level and top up if required.

19. Refer to appropriate section of the SERVICE MANUAL to check and set operating pressures.

20. Disconnect the articulation lock bar and place it in the stored position.

3.95

Lubrication and Maintenance

Tigercat 720G/724G/726G Feller Buncher

CARE OF THE MACHINE • All fluid levels must always be at the proper level.

Refer to the LUBRICATION AND MAINTENANCE SCHEDULE in THIS SECTION. • Lubricate all grease points at the required intervals as specified in the LUBRICATION AND MAINTENANCE SCHEDULE in THIS SECTION. • The cab emergency exits must be in working order by following the EMERGENCY EXIT MAINTENANCE GUIDE in THIS SECTION. • Follow proper procedure for cleaning windows described in THIS SECTION. • DO NOT allow dust, dirt, branches, twigs, leaves or pine needles to build up around radiator intake doors or anywhere else on the machine. Clean as operating conditions warrant but at least once a day all debris must be remove from the machine interior.

• DO NOT apply load to a cold engine.

• Always harvest trees in LOW driving range.

• Never park machine with head raised off the ground.

Be sure the head is resting on the ground before servicing or parking the machine. Refer to PARKING THE MACHINE in SECTION 1.

• SAFETY FIRST! Follow all safety rules and regulations as outlined in SECTION 1.

IMPORTANT! When cleaning the machine with pressurized water it is important to avoid getting water directly or indirectly into the exhaust tube. Water in the exhaust tube will damage sensors and SCR system components and affect the proper operation of the after treatment system and the engine.

3.96

Tigercat 720G/724G/726G Feller Buncher

Lubrication and Maintenance

PRESSURE WASHING

PRESSURE WASHING PROCEDURE

Pressure washing is one of the easiest and most economical ways to preserve your investment.

Accumulated mud can damage axles, sand will grind down pins and bearings, and wood debris buildup in machine enclosures is a serious fire hazard. Pressure washing is also good practice before and after servicing equipment.

1. Park the machine on level ground. Refer to PARKING THE MACHINE in SECTION 1.

CAUTION

2. Close and latch the cab door.

3. Open all engine compartment doors. Refer to SERVICE COMPARTMENTS, DOORS AND ACCESS PANELS in THIS SECTION. 4. Turn OFF the battery disconnect switch.

5. Pressure wash:

To avoid slips, trips or falls, all handles, steps and platforms must be kept free of grease, oil, fuel, mud, snow, ice, and forest debris.

• Drive motors and compartments • Oil cooler, cooler package and enclosure screens • Engine compartment

CAUTION

• Hydraulic pumps and compartment • Main control valve and compartment • Cab windows. Refer to CARE OF POLYCARBONATE WINDOWS in THIS SECTION.

Use personal protective equipment to guard against flying debris.

IMPORTANT! Use a high volume, low pressure fan nozzle or nozzle setting for all equipment cleaning. High pressure spray can damage paint, penetrate electrical connections and remove labels. Use a mild detergent and make sure pressure settings are below 83 bar (1200 psi).

A

IMPORTANT! Allow the engine to cool down before pressure washing the engine compartment. Pressure washing a hot engine with cold water could crack the engine block or other components.

To avoid damaging sensitive machine components, do not allow water to come in contact with electrical/ electronic components or air ducts and filters inside the vehicle.

Due to the sensitive electronics on this machine use only warm water, a mild detergent and a gentle pressure wash setting.

B

845C-242

A Pressure Washer Extension B Platform Ladder

To clean hard-to-reach areas, use a platform ladder or attach an extension wand to your pressure washer, extend it to the desired height and lock it in place.

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Lubrication and Maintenance

Tigercat 720G/724G/726G Feller Buncher

CLEANING COOLER PACKAGE

B

Check the cooler package every 8 hours or more often where conditions cause accumulation of twigs, leaves, pine needles and dust. Also check all engine enclosure doors.

A

A

B

724G-127

A Upper-Right Door B Lower-Right Access Panel

The cross-flow fan is located on the right side of the machine behind the upper-right hinged door and lowerright access panel.

724G-128

A Upper-Left Door B Lower-Left Access Panel

The cooler package is located on the left side of the machine behind the upper-left hinged door and the lower-left access panel.

700050

A

B

C

700046

A B C D

Cross-Flow Fan– Right Side

D

Hydraulic Oil Cooler A/C Condenser Core Radiator (Engine Coolant Core) Charge Air Cooler

The cross-flow fan draws air from the left side of the machine through the door and cooler package blowing it out of the right side of the machine.

The cooler package consists of the hydraulic oil cooler, the A/C condenser core, the radiator and the charge air cooler (CAC).

3.98

Tigercat 720G/724G/726G Feller Buncher

Lubrication and Maintenance USING THE FAN CLEAN FUNCTION TO REMOVE DEBRIS DURING OPERATION

CLEANING PROCEDURE 1. Park the machine on level ground. Refer to PARKING THE MACHINE in SECTION 1.

The hydraulic fan circuit has a CLEAN function for use in cleaning debris from the charge air cooler, radiator, oil cooler, A/C condenser and air intake door screens during operation. By reversing the direction of the fan, air flows in the opposite direction, thereby forcing dust and debris off the charge air cooler, radiator, oil cooler, A/C condenser, and air intake door screens. Be sure no personnel are standing directly to the left of the machine when performing this operation. Dust and debris will fly out. Refer to FAN SWITCH (ENGINE COOLING) in SECTION 2 for more information.

2. Shut down the machine as per instructions in ENGINE – STOPPING in SECTION 2.

Always follow proper engine shutdown procedures.

The important benefits are: • Extended life of engine, cooling and exhaust systems.

• Reduced risk of post shutdown fires.

• Interior of machine cools significantly reducing risks from touching hot surfaces.

3. Open both cooler package access doors on the sides of the machine by swinging the latch pin stop to the side, lifting up the pin and swing.

4. Lift out the bottom screen panels on the right and left sides of the front engine area, behind the cab.

5. Use compressed air or water for cleaning.

CAUTION Use compressed air for cleaning only when the machine is cold to avoid the risk of fire caused by debris being blown into contact with hot surfaces.

If using compressed air for cleaning, use at 2 bar (30 psi) or less.

Always use personal protective equipment (eye wear) to guard against flying debris.

If an oil leak occurs in this area it should be thoroughly power-washed with a mild soap to ensure that all of the oil is removed. The presence of oil causes dust and dirt to cling to surfaces which impairs the ability of the reversible fan to remove dust and dirt particles.

Take care when cleaning the cooler package as the components can be damaged by careless handling and cleaning.

CAUTION Avoid the risk of fire caused by debris accumulating on surfaces that may become hot during machine operation. Always use care when cleaning to ensure debris removed from one area of the machine does not accumulate on other areas of the machine.

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Lubrication and Maintenance

Tigercat 720G/724G/726G Feller Buncher

CARE OF POLYCARBONATE WINDOWS

INSPECTION AND MAINTENANCE

Most windows used in the cab are made from a polycarbonate resin thermoplastic. This material is a replacement for glass when improved strength, durability and safety is required.

Daily inspection and maintenance is essential to confirm that the window’s ability to protect the operator has not been compromised.

Polycarbonate material is expected to resist heavy impact from large branches and falling tree tops and to absorb high levels of energy when contacted by high velocity thrown objects such as wood chips, disc saw blade teeth or broken harvester head saw chain.

The extreme operating environment seen in logging applications heightens the need to regularly inspect and properly maintain polycarbonate cab windows.

Polycarbonate windows are an essential piece of operator protective equipment and should be maintained as such.

Refer to the next section for detailed information regarding inspection and maintenance of polycarbonate windows.

• Inspect all windows daily and immediately after any impacts.

• Check for any damage to the window material or steel structure in the area of the window mounting.

• The edges of the polycarbonate window must be evenly and fully supported on a flat surface around the entire window opening at all times. Bent or dented skylight structures must be replaced immediately. Bent or dented cab structures must be evaluated immediately for possible repair or replacement.

• The viewing surface and edges of the polycarbonate window must be free from cracks, chips, notches or scarring and the edges must not be pinched or stressed. These defects will decrease its ability to resist heavy impacts and therefore compromise effectiveness as operator safety protective equipment. Windows with these defects must be replaced immediately.

• Bent, dented or missing window retaining parts must be replaced immediately.

• Rubber materials used in mounting the window must be maintained in good condition.

• Identification of the polycarbonate originally used

by Tigercat is hot stamped in a corner of the window to identify its composition. DO NOT use any replacement window without proof of its material composition. DO NOT substitute with any other materials.

• Skylights, cab structures, windows and window retaining parts must not be modified or replaced with components that are not approved by Tigercat.

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Tigercat 720G/724G/726G Feller Buncher

Lubrication and Maintenance

RESISTANCE TO CHEMICALS

CLEANING INSTRUCTIONS

The resistance of polycarbonate material to chemical exposure varies widely. Fortunately, polycarbonate materials have good resistance to diesel fuel, grease, hydraulic oil, kerosene and engine oil.

The viewing surfaces of polycarbonate cab windows are specially treated with a hard coating to provide enhanced resistance to abrasion and ultra-violet (UV) radiation.

The following instructions are provided to prolong the life of this protective hard coating.

Other chemicals however can seriously weaken the polycarbonate.

1. Rinse the window thoroughly with lukewarm water

DO NOT permit any of the following chemicals to come into contact with polycarbonate windows:

2. Using a soft cloth, cellulose sponge or chamois, gently wash the window with a mild solution of soap or detergent in lukewarm water. DO NOT scrub or use brushes or squeegees.

• Acetone • Air Conditioning Refrigerant

Brand name soaps and detergents recommended for cleaning polycarbonate are:

• Ammonia • Anti-Freeze

• Fantastik

• Benzene

• Formula 409

• Brake Fluid

• Hexcel F.O. 554

• Carbon Tetrachloride

• Joy

• Cutting Oils

• Lysol

• Gasoline

• Mr. Clean

• Lacquer Thinner

• Neleco-Placer

• Toluene

• Pine-Sol

• Turpentine

• Top Job

• Xylene

3. Rinse the window thoroughly with lukewarm water.

RESISTANCE TO WATER Polycarbonate material has good resistance to water up to approximately 65°C (150°F). Above this temperature the effect of water is time-temperature related. This means that the higher the water temperature, the shorter the time before the polycarbonate is adversely affected.

4. Dry the window with a moist soft cloth, cellulose sponge or chamois to prevent water spotting.

5. To remove grease or oil, first rub lightly with a good grade of VM&P Naphtha or isopropyl alcohol followed by the same rinse, wash, rinse and dry procedure described in steps 1 to 4.

Refer to RESISTANCE TO CHEMICALS in THIS SECTION for a list of chemicals which should not be permitted to come into contact with polycarbonate windows.

Exposing polycarbonate to repeated steam cleaning or high temperature pressure washing may result in crazing, a phenomenon that causes clouding of the surface. Crazing can ultimately result in a loss of physical strength and may precede a fracture.

3.101

Lubrication and Maintenance CAUTION

Tigercat 720G/724G/726G Feller Buncher GRAFFITI REMOVAL

• DO NOT use abusive cleaning procedures

• For removal of paints, marking pen inks, etc., the use of Butyl Cellosolve is generally effective. The use of masking tape, adhesive tape or lint removal tools works well for lifting off old weathered paints.

• DO NOT use brushes, razor blades, scrapers, squeegees or other sharp tools on polycarbonate windows.

• To remove labels, stickers, etc., the use of kerosene, VM&P naphtha, or petroleum spirits is generally effective. When the solvent will not penetrate sticker material, apply heat (hair dryer) to soften the adhesive and promote removal.

either by hand or pressure washing on polycarbonate windows.

• DO NOT clean polycarbonate windows when the daytime temperature is high or in direct sunlight.

• DO NOT use abrasive or highly alkaline cleaners on polycarbonate windows.

• DO NOT use glass cleaners in either aerosol or non aerosol containers to clean polycarbonate windows.

Failure to follow these cleaning instructions will shorten the service life of polycarbonate and may cause visual hazing, loss of light transmission and delamination of the polycarbonate hard surface coating.

Refer to RESISTANCE TO CHEMICALS in THIS SECTION for a list of chemicals which should not be permitted to come into contact with polycarbonate windows.

FIRE PRECAUTIONS Polycarbonate window material will ignite when exposed to an ignition source in excess of 427°C (800°F). When working around polycarbonate windows, observe similar fire precautions to those in place for wood.

CONCEALING HAIRLINE SCRATCHES The appearance of scratches and minor abrasions on the surfaces of polycarbonate windows can be minimized by using a mild automotive polish such as: • Johnson’s Paste Wax • Novus Plastic Polish #1 and #2 • Mirror Glaze Plastic Polish Be certain to clean the polycarbonate window as outlined prior to application of an automotive polish. Refer to CLEANING INSTRUCTIONS in THIS SECTION.

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Tigercat 720G/724G/726G Feller Buncher

Lubrication and Maintenance

CLEANING INSTRUCTIONS FOR GLASS WINDOWS (BOTH DOORS)

REMOVAL OF ANTI-CORROSION SPRAY (IF APPLICABLE)

Normal window cleaning procedures are acceptable.

Some machines, particularly machines shipped outside North America, are shipped with an optional anticorrosion spray to protect the machine from corrosion during shipment.

SIDE WINDOW SCREENS

This anti-corrosion spray should be removed when the machine reaches it’s destination as it may cause debris to stick to the treated surfaces of the machine.

The anti-corrosion spray can be removed with a pressure washer, a sponge and soap.

724G-121

Right Side Shown

The side window screens can be opened to clean the windows. Screens are provided for the personal protection of the operator. A hand knob is provided on both the inside and the outside. By unscrewing either (not both) of these knobs, the screen will be free to swing out on the hinges. Be aware that the screen will swing outwards with considerable force, if the door is open.

724G-122

Opened for Window Cleaning

All handles should be handtight only at all times.

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Lubrication and Maintenance

Tigercat 720G/724G/726G Feller Buncher

PRESSURE AND SPEED SETTINGS–720G/724G/726G–SAW

With hydraulic oil at operating temperature 49°C–60°C (120°F–140°F) Location

Pressure bar

psi

Engine High Idle Low Idle

Engine rpm 2200 ± 25 900 ± 25

Pilot Manifold Pressure Relief Valve Pressure Reducing Valve

47 38

675 550

1000 1000

Drive Pump–2-Speed Transmission Charge Pressure Relief Valve Pump P.O.R. Forward Pump P.O.R. Reverse High Pressure Relief Forward Non-Adjustable High Pressure Relief Reverse Non-Adjustable

29 331 331 365 365

425 4800 4800 5300 5300

1800 2200 2200

Drive Motor–2-Speed Transmission Drive Motor P.O.R.

255

3700

2200

Drive Pump–wideRANGE Transmission Charge Pressure Relief Valve Pump P.O.R. Forward Pump P.O.R. Reverse High Pressure Relief Forward Non-Adjustable High Pressure Relief Reverse Non-Adjustable

29 348 348 379 379

425 5050 5050 5500 5500

1800 2200 2200

Drive Motor–wideRANGE Transmission Drive Motor P.O.R. Loop Flushing Pressure Relief Non-Adjustable

280 25

4050 360

2200

Steer Valve (Joystick Steering Only) Steer Valve Main Relief Steer RIGHT Port Relief Steer LEFT Port Relief

172 221 221

2500 3200 3200

2200 1000 1000

Saw Cutter Control Valve Main Relief Attachment Pump Standby Pressure Attachment Pump P.O.R. Saw Motor P.O.R.

303 16–19 248 214

4400 225–275 3600 3100

1100 2200 2200 2200

Boom Valve Main Relief Boom LIFT Port Relief Boom LOWER Port Relief Tilt IN Port Relief Tilt OUT Port Relief Accumulator Arm OPEN Port Relief Accumulator Arm CLOSE Port Relief Clamp Arm OPEN Port Relief Clamp Arm CLOSE Port Relief

179 200 152 200 200 221 221 76 221

2600 2900 2200 2900 2900 3200 3200 1100 3200

2200 1000 1000 1000 1000 1000 1000 1000 1000

720G_724G_726G PRESSURE SETTINGS R0 IMPORTANT NOTES: Boom support must be used part# 4128A. When performing tilt out function without a felling head installed, do not allow crank arms to hit boom.

3.104

Tigercat 720G/724G/726G Feller Buncher

Lubrication and Maintenance

PRESSURE AND SPEED SETTINGS–720G/724G/726G–SHEAR

With hydraulic oil at operating temperature 49°C–60°C (120°F–140°F) Pressure

Location

bar

psi

Engine High Idle Low Idle

Engine rpm 2200 ± 25 900 ± 25

Pilot Manifold Pressure Relief Valve Pressure Reducing Valve

47 38

675 550

1000 1000

Drive Pump–2-Speed Transmission Charge Pressure Relief Valve Pump P.O.R. Forward Pump P.O.R. Reverse High Pressure Relief Forward Non-Adjustable High Pressure Relief Reverse Non-Adjustable

29 331 331 365 365

425 4800 4800 5300 5300

1800 2200 2200

Drive Motor–2-Speed Transmission Drive Motor P.O.R.

255

3700

2200

Drive Pump–wideRANGE Transmission Charge Pressure Relief Valve Pump P.O.R. Forward Pump P.O.R. Reverse High Pressure Relief Forward Non-Adjustable High Pressure Relief Reverse Non-Adjustable

29 348 348 379 379

425 5050 5050 5500 5500

1800 2200 2200

Drive Motor–wideRANGE Transmission Drive Motor P.O.R. Loop Flushing Pressure Relief Non-Adjustable

280 25

4050 360

2200

Steer Valve (Joystick Steering Only) Steer Valve Main Relief Steer RIGHT Port Relief Steer LEFT Port Relief

172 221 221

2500 3200 3200

2200 1000 1000

Shear Cutter Control Valve Main Relief Attachment Pump Standby Pressure Attachment Pump P.O.R.

269 16–19 241

3900 225–275 3500

2200 2200 2200

Boom Valve Mid Inlet Main Relief Boom LIFT Port Relief Boom LOWER Port Relief Tilt IN Port Relief Tilt OUT Port Relief Accumulator Arm OPEN Port Relief Accumulator Arm CLOSE Port Relief Clamp Arm OPEN Port Relief Shear Arm OPEN Port Relief Clamp/Shear Arm CLOSE Port Relief

179 200 152 200 200 221 221 255 255 255

2600 2900 2200 2900 2900 3200 3200 3700 3700 3700

2200 1000 1000 1000 1000 1000 1000 1000 1000 1000

720G_724G_726G PRESSURE SETTINGS-SHEAR R0 IMPORTANT NOTES: Boom support must be used part# 4128A. When performing tilt out function without a felling head installed, do not allow crank arms to hit boom.

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Lubrication and Maintenance

Tigercat 720G/724G/726G Feller Buncher

TORQUE CHART LOCATION Cylinders Piston nut, steer cylinder Piston nut, lift/tilt cylinder Gland, steer cylinder Gland, lift/tilt cylinder Keeper plate bolts

THREAD DIAMETER

TORQUE (LUBRICATED) lbf-ft Nm

1 1/4" UNF 1 3/4" UNF 1/2" UNC 3/4" UNC

920 1750 450 80 282-310

1248 2373 610 109 382-420

M16 x 2

282

382

1/2" UNC 3/4" UNC

80-88 282-310

109-119 382-420

Engine mounting Mount to chassis bolts Mount to engine bolts Mount to pump drive bolts

7/8" UNC M12 x 1.75 (10.9) 5/8" UNC

430 75 159-175

583 102 216-237

Pump drive gearbox Drive plate to flywheel bolts Bell housing to engine bolts

M10 x 1.5 (10.9) M10 x 1.5 (10.9)

37 42

50 57

Cab pin keeper plate bolts Center joint bearing Bearing retaining bolts Pin retaining bolts

Drive shafts Yoke retaining bolt, park brake Yoke retaining bolt, 2-Speed transmission Yoke retaining bolt, wideRANGETM transmission Park brake mounting bolts Universal joint bolts Drive shaft to park brake/transmission bolts Drive shaft to axle bolts

5/8" UNF 1" UNF 5/8" UNF 5/8" UNC

180 150 180 167

244 204 244 227

3/8" UNF M10 x 1.5

37-49 37-49

50-66 50-66

Axle mounting bolts Front axle bolts Rear axle bolts

7/8" UNC 3/4" UNC

475 226

644 307

Wheel bolts

7/8" UNF

500-550

678-746

Transmission Mount to frame bolts Housing to mount bolts, 2-Speed Housing to mount bolts, wideRANGETM

7/8" UNC 3/4" UNC 5/8" UNC

364 282-310 159

494 382-420 215

Torque values pertaining to the engine and attachment are provided in the appropriate manuals.

3.106

Tigercat 720G/724G/726G Feller Buncher

Lubrication and Maintenance

GENERAL TORQUE SPECIFICATIONS IMPERIAL

The torque values listed below are for general use only.

DO NOT use these values if a different torque value or tightening procedure is shown for a specific application.

GRADE 8 BOLTS

GRADE 5 BOLTS

IMPERIAL BOLT TORQUE SPECIFICATIONS GRADE 5 BOLTS GRADE 8 BOLTS LUBRICATED COARSE Nm lbf-ft THREAD 1/4" - 20 9-9 6-7 5/16" - 18 18 - 19 13 - 14 3/8" - 16 31 - 35 23 - 25 7/16" - 14 50 - 55 37 - 41 1/2" - 13 77 - 84 57 - 62 9/16" - 12 111 - 122 82 - 90 5/8" - 11 153 - 168 113 - 124 3/4" - 10 271 - 298 200 - 220 7/8" - 9 437 - 480 322 - 354 1" - 8 654 - 720 483 - 531 1 1/8" - 7 808 - 888 596 - 655 1 1/4" - 7 1139 - 1253 840 - 924 FINE LUBRICATED THREAD Nm lbf-ft 1/4" - 28 10 - 11 7-8 5/16" - 24 20 - 22 14 - 16 3/8" - 24 36 - 39 26 - 29 7/16" - 20 56 - 62 41 - 46 1/2" - 20 86 - 95 64 - 70 9/16" - 18 123 - 136 91 - 100 5/8" - 18 173 - 190 127 - 140 3/4" - 16 302 - 332 223 - 245 7/8" - 14 482 - 530 355 - 391 1" - 14 735 - 808 542 - 596 1 1/8" - 12 906 - 996 668 - 735 1 1/4" - 12 1262 - 1388 930 - 1023

DRY Nm lbf-ft 11 - 13 8-9 24 - 26 17 - 19 42 - 46 31 - 34 67 - 74 49 - 54 102 - 112 75 - 83 147 - 162 109 - 120 203 - 224 150 - 165 361 - 397 267 - 293 582 - 640 429 - 472 873 - 960 644 - 708 1077 - 1185 794 - 874 1519 - 1671 1121 - 1233 DRY Nm lbf-ft 13 - 14 10 - 11 26 - 29 19 - 21 47 - 52 35 - 38 75 - 82 55 - 61 115 - 127 85 - 93 164 - 181 121 - 133 230 - 253 170 - 187 403 - 443 297 - 327 642 - 706 474 - 521 979 - 1077 722 - 795 1207 - 1328 890 - 980 1682 - 1850 1241 - 1365

COARSE THREAD 1/4" - 20 5/16" - 18 3/8" - 16 7/16" - 14 1/2" - 13 9/16" - 12 5/8" - 11 3/4" - 10 7/8" - 9 1" - 8 1 1/8" - 7 1 1/4" - 7 FINE THREAD 1/4" - 28 5/16" - 24 3/8" - 24 7/16" - 20 1/2" - 20 9/16" - 18 5/8" - 18 3/4" - 16 7/8" - 14 1" - 12 1 1/8" - 12 1 1/4" - 12

LUBRICATED DRY Nm lbf-ft Nm lbf-ft 12 - 13 9 - 10 16 - 18 12 - 13 25 - 27 18 - 20 33 - 37 25 - 27 44 - 49 33 - 36 59 - 65 44 - 48 71 - 78 52 - 58 95 - 104 70 - 77 108 - 119 80 - 88 144 - 159 106 - 117 156 - 172 115 - 127 208 - 229 154 - 169 215 - 237 159 - 175 287 - 316 212 - 233 383 - 421 282 - 310 510 - 561 376 - 414 616 - 678 455 - 500 822 - 904 606 - 667 924 - 1016 681 - 750 1232 - 1355 909 - 999 1310 - 1441 966 - 1063 1746 - 1921 1288 - 1417 1848 - 2033 1363 - 1499 2464 - 2710 1817 - 1999 LUBRICATED DRY Nm lbf-ft Nm lbf-ft 14 - 15 10 - 11 18 - 20 14 - 15 28 - 30 20 - 22 37 - 41 27 - 30 50 - 55 37 - 41 67 - 74 49 - 54 79 - 87 58 - 64 106 - 116 78 - 86 122 - 134 90 - 99 163 - 179 120 - 132 174 - 192 128 - 141 232 - 255 171 - 188 244 - 268 180 - 198 325 - 358 240 - 264 427 - 469 315 - 346 569 - 626 420 - 462 680 - 748 502 - 552 907 - 997 669 - 736 1037 - 1141 765 - 841 1383 - 1521 1020 - 1122 1468 - 1615 1083 - 1191 1958 - 2154 1444 - 1588 2046 - 2250 1509 - 1660 2728 - 3000 2012 - 2213

METRIC

METRIC BOLT TORQUE SPECIFICATIONS CLASS 8.8

SIZE PITCH LUBRICATED mm Nm lbf-ft M6 1 8-9 6-7 M8 1.25 20 - 22 15 - 16 M10 1.5 39 - 43 29 - 32 M12 1.75 68 - 75 50 - 55 M14 2 109 - 120 80 - 89 M16 2 169 - 186 125 - 137 M18 2.5 234 - 257 172 - 190 M20 2.5 330 - 364 244 - 268 M22 2.5 451 - 496 332 - 366 M24 3 571 - 628 421 - 463 M27 3 837 - 921 618 - 679 M30 3.5 1135 - 1249 837 - 921 M33 3.5 1545 - 1699 1139 - 1253 M36 4 1985 - 2183 1464 - 1610

CLASS 10.9 LUBRICATED DRY Nm lbf-ft Nm lbf-ft Nm lbf-ft 11 - 12 8-9 11 - 12 8-9 15 - 17 11 - 12 26 - 29 19 - 21 27 - 30 20 - 22 36 - 40 27 - 30 52 - 57 38 - 42 54 - 60 40 - 44 72 - 79 53 - 59 91 - 100 67 - 74 94 - 104 70 - 77 126 - 138 93 - 102 145 - 160 107 - 118 151 - 166 111 - 122 201 - 221 148 - 163 226 - 248 166 - 183 234 - 257 173 - 190 312 - 343 230 - 253 312 - 343 230 - 253 323 - 356 239 - 262 431 - 474 318 - 350 441 - 485 325 - 357 457 - 503 337 - 371 610 - 670 450 - 495 601 - 661 443 - 487 623 - 686 460 - 506 831 - 914 613 - 674 761 - 838 562 - 618 790 - 869 583 - 641 1053 - 1159 777 - 855 1116 - 1228 823 - 906 1158 - 1274 854 - 940 1544 - 1699 1139 - 1253 1514 - 1665 1116 - 1228 1570 - 1727 1158 - 1274 2094 - 2303 1544 - 1699 2060 - 2266 1519 - 1671 2137 - 2351 1576 - 1734 2849 - 3134 2102 - 2312 2646 - 2911 1952 - 2147 2745 - 3020 2025 - 2227 3661 - 4027 2700 - 2970 DRY

3.107

CLASS 12.9 LUBRICATED DRY Nm lbf-ft Nm lbf-ft 13 - 14 10 - 11 18 - 19 13 - 14 32 - 35 24 - 26 43 - 47 31 - 35 63 - 70 47 - 51 84 - 93 62 - 68 110 - 121 81 - 90 147 - 162 109 - 119 176 - 194 130 - 143 235 - 259 173 - 191 274 - 301 202 - 222 365 - 401 269 - 296 378 - 416 279 - 307 504 - 554 372 - 409 534 - 588 394 - 433 712 - 784 525 - 578 728 - 801 537 - 591 971 - 1068 716 - 788 923 - 1016 681 - 749 1231 - 1354 908 - 999 1354 - 1489 998 - 1098 1805 - 1985 1331 - 1464 1835 - 2019 1354 - 1489 2447 - 2692 1805 - 1985 2498 - 2747 1842 - 2026 3330 - 3663 2456 - 2702 3208 - 3529 2366 - 2603 4278 - 4706 3155 - 3471

Lubrication and Maintenance

Tigercat 720G/724G/726G Feller Buncher

Parker

ASSEMBLY TORQUE The four-bolt port is simply a circular opening (flow passage) surrounded by four tapped holes in a certain pattern for acceptance of the flange clamping bolts. The flat surface of the port compresses the O-ring contained in the groove in the flange head when the clamp bolts are torqued. In some instances, the groove is in the port and not in the flange head. The bolts, through the clamp halves, clamp down the flange head onto the flat surface of the port compressing and trapping the O-ring in the groove and leaving no gap for it to extrude under pressure. The hydraulic pressure is thus sealed by the compressed O-ring as long as the bolts are tightened enough to maintain solid metal to metal contact between the flange head at the outside diameter of the O-ring and the top of the port.

A B C

D E F

FLANGE PORT ASSEMBLY The steps to properly assemble the flange port clamping bolts are:

FLANGE.JPG

A B C D E F

4-Bolt Split Flange Components

Washers Bolts Flange Clamp Flange Head O-Ring Tapped Holes

1. Make sure sealing surfaces are free of burrs, nicks, scratches or any foreign particles.

2. Lubricate the O-ring.

3. Position flange and clamp halves.

4. Place lock washers on bolts and insert through clamp halves.

• The 4-Bolt Split Flange consists of four main components:

5. Hand tighten bolts.

• A body (flange head) • An O-ring • One captive or two split flange clamps • Four bolts and washers Dash Size

Flange Size

Inch Bolt (J518)

Torque lbf-ft

Metric Bolt (ISO 6162)

Torque Nm

8 12 16 20 24 32 40 48 56 64 80

1/2 3/4 1 1-1/4 1-1/2 2 2-1/2 3 3-1/2 4 5

5/16-18 3/8-16 3/8-16 7/16-14 1/2-13 1/2-13 1/2-13 5/8-11 5/8-11 5/8-11 5/8-11

17 +/- 2 25 +/- 3.5 31 +/- 4.5 41 +/- 5 52 +/- 6 60 +/- 6 85 +/- 9 144 +/- 15 125 +/- 8 125 +/- 8 125 +/- 8

M8 M10 M10 M12 M12 M12 M12 M16 M16 M16 M16

25 49 49 85 85 135 95 220 220 220 220

FLANGE2.JPG

A

Flange Bolt Tightening Sequence

6. Torque bolts in diagonal sequence in small increments to the appropriate torque level listed in Table T6 or Table T7 on this page.

Dash Size

Flange Size

Inch Bolt (J518)

Torque lbf-ft

Metric Bolt (ISO 6162)

Torque N-m

8 12 16 20 24 32

1/2 3/4 1 1 1/4 1 1/2 2

5/16-18 3/8-16 7/16-14 1/2-13 5/8-11 3/4-10

17 +/- 2 30 +/- 4.5 46 +/- 4.5 69 +/- 6 125 +/- 8 208 +/- 20

M8 M10 M12 M14 M16 M20

25 49 85 135 210 425

Table T6 – Code 61 Flange Recommended Bolt Torque

NOTE: Does not meet ISO 6162 specification.

Table T7 – Code 62 Flange Recommended Bolt Torque

NOTE: Does not meet ISO 6162 specification.

3.108

Tigercat 720G/724G/726G Feller Buncher

Lubrication and Maintenance

Parker

Assembly Torque

JIC 37 Degree Flare SAE Dash Size -2 -3 -4 -5 -6 -8 -10 -12 -14 -16 -20 -24 -32 -40

NPTF

Tube Connection Swivel or Hose Connection FFWR FFWR

Thread Size 5/16-24 3/8-24 7/16-20 1/2-20 9/16-18 3/4-16 7/8-14 1 1/16-12 1 3/16-12 1 5/16-12 1 5/8-12 1 7/8-12 2 1/2-12 3-12

NA NA 2 2 1 1/2 1 1/2 1 1/2 1 1/4 1 1 1 1 1 1

SAE Dash Size

NA NA 2 2 1 1/4 1 1 1 1 1 1 1 1 1

-2 -3 -4 -5 -6 -8 -10 -12 -14 -16 -20 -24 -32 -40

F.F.W.R : Flats From Wrench Resistance All values are for Steel, Stainless Steel and Brass

Tube Connection Swivel or Hose Connection TFFT TFFT

Thread Size 1/8-27 NA 1/4-18 NA 3/8-18 1/2-14 7/8-14 3/4-14 NA 1-11 1/2 1 1/4-11 1/2 1 1/2-11 1/2 2-11 1/2 NA

-2 -3 -4 -5 -6 -8 -10 -12 -14 -16 -20 -24 -32 -40

BSPT

Tube Connection Swivel or Hose Connection FFWR FFWR

Thread Size NA NA 9/16-18 NA 11/16-16 13/16-16 1-14 1 3/16-12 NA 1 7/16-12 1 11/16-12 2-12 NA NA

NA NA 1/4 TO 1/2 NA 1/4 TO 1/2 1/4 TO 1/2 1/4 TO 1/2 1/4 TO 1/2 NA 1/4 TO 1/2 1/4 TO 1/2 1/4 TO 1/2 NA NA

2-3 NA 2-3 NA 2-3 2-3 NA 2-3 NA 1.5-2.5 1.5-2.5 1.5-2.5 1.5-2.5 NA

T.F.F.T. : Turns from finger tight All pipe values are for Steel, Stainless Steel and Brass

O'ring Face Seal / Seal-Lok SAE Dash Size

2-3 NA 2-3 NA 2-3 2-3 NA 2-3 NA 1.5-2.5 1.5-2.5 1.5-2.5 1.5-2.5 NA

SAE Dash Size

NA NA 1/2 TO 3/4 NA 1/2 TO 3/4 1/2 TO 3/4 1/2 TO 3/4 1/3 TO 1/2 NA 1/3 TO 1/2 1/3 TO 1/2 1/3 TO 1/2 NA NA

-2 -3 -4 -5 -6 -8 -10 -12 -14 -16 -20 -24 -32 -40

F.F.W.R : Flats From Wrench Resistance All values are for Steel, Stainless Steel and Brass

Tube Connection Swivel or Hose Connection TFFT TFFT

Thread Size 1/8-28 NA 1/4-19 NA 3/8-19 1/2-14 NA 3/4-14 NA 1-11 1 1/4-11 1 1/2-11 2-11 NA

2-3 NA 2-3 NA 2-3 2-3 NA 2-3 NA 1.5-2.5 1.5-2.5 1.5-2.5 1.5-2.5 NA

2-3 NA 2-3 NA 2-3 2-3 NA 2-3 NA 1.5-2.5 1.5-2.5 1.5-2.5 1.5-2.5 NA

T.F.F.T. : Turns from finger tight All pipe values are for Steel, Stainless Steel and Brass

SAE J1926 Straight Thread Port Assembly Torques ASSEMBLY TORQUE = 10 % -0 SAE DASH SIZE

2 3 4 5 6 8 10 12 14 16 20 24 32

THREAD SIZE

5/16-24 3/8-24 7/16-20 1/2-20 9/16-18 3/4-16 7/8-14 1 1/16-12 1 3/16-12 1 5/16-12 1 5/8-12 1 7/8-12 2 1/2-12

SEAL-LOK lbf-ft (lbf-in) (310) (310) (310) (360) (420) 60 100 135 175 200 250 305 375

Nm 20 20 20 40 46 80 135 185 235 270 340 415 510

TRIPLE-LOK FERULOK PIPE FITTINGS lbf-ft Nm (lbf-in) (85) 10 (155) 18 (260) 29 (280) 32 (350) 40 (620) 70 85 115 135 183 175 237 200 271 250 339 305 414 375 509

PLUGS

ADJUSTABLE

NON-ADJUSTABLE

SEAL-LOK lbf-ft (lbf-in) (310) (310) (310) (360) (420) 60 100 135 175 200 250 305 375

3.109

Nm 20 20 20 40 46 80 135 185 235 270 340 415 510

TRIPLE-LOK FERULOK PIPE FITTINGS lbf-ft Nm (lbf-in) (60) 7 (100) 11 (180) 20 (250) 28 (350) 40 (620) 70 85 115 135 183 175 237 200 271 250 339 305 414 375 509

HOLLOW HEX

HEX HEAD

HP5ON-S

P5ON-S

lbf-ft (lbf-in) (30) (55) (120) (170) (410) 60 100 135 175 200 250 305 375

Nm 3.5 6 13.5 19 46 80 135 185 235 270 340 415 510

lbf-ft (lbf-in) (85) (155) (260) (280) (350) (620) 85 135 175 200 250 305 375

Nm 10 18 29 32 40 70 115 183 237 271 339 414 509

Lubrication and Maintenance

Tigercat 720G/724G/726G Feller Buncher

EATON Aeroquip

Assembly Torque

Recommended Parallel Connection Assembly torque

Eaton recommends that a Torque wrench be used to assure proper fitting assembly of these connections.

Straight Thread O-Ring Boss Low Pressure with 37º (SAEJ514)

Straight Thread O-Ring Boss High Pressure with ORS (J1453)

Thread Size (inches) 3/8-24 7/16-20 1/2-20 9/16-18 3/4-16 7/8-14 1 1/16-12 1 3/16-12 1 5/16-12 1 5/8-12 1 7/8-12 2 1/2-12

Dash Size -03 -04 -05 -06 -08 -10 -12 -14 -16 -20 -24 -32

The values listed are for steel connections. Contact Teaton for torque values for other materials.

Jam Nut or Jam Nut or Straight Straight Fitting Torque Fitting Torque lb.-ft.

Newton Meters 8-9 12-13 13-15 18-20 14-15 19-21 23-24 32-33 40-43 55-57 43-48 59-64 68-75 93-101 83-90 113-122 112-123 152-166 146-161 198-218 154-170 209-230 218-240 296-325

ORS

Dash Size -04 -06 -08 -10 -12 -16 -20 -24

Dash Size -03 -04 -05 -06 -08 -10 -12 -14 -16 -20 -24

Thread Size (inches) 3/8-24 7/16-20 1/2-20 9/16-18 3/4-16 7/8-14 1 1/16-12 1 3/16-12 1 5/16-12 1 5/8-12 1 7/8-12

Jam Nut or Jam Nut or Straight Straight Fitting Torque Fitting Torque lb.-ft.

Newton Meters 8-10 11-16 14-16 20-22 18-20 24-27 24-26 33-35 50-60 68-78 72-80 98-110 125-135 170-183 160-180 215-245 200-220 270-300 210-280 285-380 270-360 370-490

SAE 37º (JIC) Thread Size (inches) 9/16-18 11/16-20 13/16-16 1-14 1 3/16-12 1 7/16-12 1 11/16-12 2-12

Swivel Nut Torque lb.-ft.

10-12 18-20 32-35 46-50 65-70 92-100 125-140 150-165

Swivel Nut Torque Newton Meters 14-16 24-27 43-47 62-68 88-95 125-136 170-190 204-224

Metric Thread Size mm M10x1 M12x1.5 M14x1.5 M16x1.5 M18x1.5 M20x1.5 M22x1.5 M26x1.5 M27x2 M33x2 M42x2 M48x2

Dash Size -04 -05 -06 -08 -10 -12 -16 -20 -24 -32

Thread Size (inches) 7/16-20 1/2-20 9/16-18 3/4-16 7/8-14 1 1/16-12 1 5/16-12 1 5/8-12 1 7/8-12 2 1/2-12

Swivel Nut Torque lb.-ft.

11-12 15-16 18-20 38-42 57-62 79-87 108-113 127-133 158-167 245-258

Swivel Nut Torque Newton Meters 15-16 20-22 24-28 52-58 77-85 108-119 148-154 173-182 216-227 334-352

BSPP Straight Adapter or Locknut Torque lb.-ft.

Newton Meters 13-15 18-20 15-19 20-25 19-23 25-30 33-40 45-55 37-44 50-60 52-66 70-90 55-70 75-95 81-96 110-130 96-111 130-150 162-184 220-250 170-192 230-260 258-347 350-470

Nominal Thread Size Straight Adapter or Locknut Torque inches** lb.-ft.

Newton Meters G1/8-28 13-15 18-20 G1/4-19 19-23 25-30 G3/8-19 33-40 45-55 G1/2-14 55-70 75-95 G3/4-14 103-118 140-160 G1-11 162-184 220-250 G1 1/4-11 170-192 230-260 G1 1/2-11 258-347 350-470 ** "G" denotes parallel threads, other than ISO 6149 (Port connection only)

Eaton Aeroquip Fluid Conveyance Products A-HOOV-MC001-E January 2005

3.110

Tigercat 720G/724G/726G Feller Buncher

Lubrication and Maintenance

TIRE PRESSURES Manufacturer

Inflation Pressure

Tire Size

psi

kPa

Bridgestone/Firestone

23.1-26 14PR LS2

35

240

Bridgestone/Firestone

67x34-25 14PR HF4

40

275

Bridgestone/Firestone

73/44-32 16PR,HF3, FS

40

275

Bridgestone/Firestone

66x43-25 14PR, HF4

35

240

Bridgestone/Firestone

20.5R25 24PR, L2, FS

54

370

Bridgestone/Firestone

28L-26 16PR LS2 SS (FS)

35

240

Bridgestone/Firestone

30.5L-32 20PR, LS2, DH, FS

35

240

Bridgestone/Firestone

30.5L-32 26PR, LS2, DH, FS

35

240

Bridgestone/Firestone

24.5-32 20PR,LS2,DH,FS

40

275

COMMON CONVERSIONS To Convert...

Into...

Multiply By

To Convert...

Into...

Multiply By

bar

psi

14.5

in

cm

16.39

cm3

in3

0.06102

°F

°C

(°F − 32) / 1.8

°C

°F

(°C × 1.8) + 32

lb

kg

0.4535

kg

lb

2.205

hp

kW

0.7457

kW

hp

1.341

US Gal

L

3.785

L

US Gal

0.2642

in

mm

25.4

mm

in

0.03937

lbf•ft

Nm

1.356

Nm

lbf•ft

0.7375

lbf

N

4.4482

N

lbf

0.22481

in Hg

psi

0.4912

psi

bar

0.06896

in H2O

psi

0.03613

3.111

3

3

Lubrication and Maintenance

Tigercat 720G/724G/726G Feller Buncher

WEIGHTS OF COMMERCIAL WOOD

SPECIES

Alder, Red Ash, White Aspen, Quaking Bald Cypress Basswood, American Beech, American Birch, Paper Birch, Yellow Cedar, Alaska Cedar, Incense Cedar, Northern White Cedar, Port-Orford Cedar, Western Red Cherry, Black Cottonwood, Eastern Douglas Fir, Coast Douglas Fir, Inland North Elm, American Fir, Alpine Fir, Balsam Fir, Nobel Fir, Red Fir, Silver Fir, White Gum, Black Gum, Blue Gum, Red Gum, Tupelo Hemlock, Eastern Hemlock, Western Hickory, Pecan Hickory, True Larch, Western Locust, Black Magnolia, Cucumber

kg/m3 737 769 689 817 673 865 801 929 577 721 449 897 433 721 785 881 577 865 449 721 481 769 577 753 721 1121 801 897 801 657 993 1009 769 929 785

lb/ft3 46 48 43 51 42 54 50 58 36 45 28 36 57 45 49 55 36 54 28 45 30 48 36 47 45 70 50 56 50 41 62 63 48 58 49

SPECIES

Maple, Big Leaf Maple, Black Maple, Red Maple, Silver Maple, Sugar Oak, Black Oak, Chestnut Oak, Red Oak, Red, Swamp Oak, Swamp Chestnut Oak, White Oak, White, Swamp Pine, Jack Pine, Loblolly Pine, Lodgepole Pine, Long Leaf Pine, Norway, Red Pine, Short Leaf Pine, Slash Pine, Sugar Pine, Western Yellow Pine, White-Western Pine, White-Eastern Poplar, Yellow Redwood Spruce, Black Spruce, Engleman Spruce, Red Spruce, Sitka Spruce, White Sweetgum Sycamore, American Tamarack Walnut, Black Willow, Black

NOTE: The values shown are green weights.

3.112

kg/m3 753 865 801 721 897 1009 977 1009 1073 1041 993 1105 801 993 625 993 673 993 993 817 721 561 577 609 801 513 625 545 529 545 801 833 753 929 801

lb/ft3 47 54 50 45 56 63 61 63 67 65 62 69 50 62 39 62 42 62 62 51 45 35 36 38 50 32 39 34 33 34 50 52 47 58 50