Tigercat M726E MULCHER OPERATOR'S MANUAL - PDF DOWNLOAD

OPERATOR'S MANUAL Tigercat M726E MULCHER ISSUE 3.3, JUNE, 2010

TABLE OF CONTENTS SECTION INTRODUCTION ................................................................................................................iii 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.

M726E-SM00

M726E Available Literature Operator's Manual (This Manual) .......................... Part No. 29847A Service Manual ....................................................... Part No. 29848A Parts Catalog .......................................................... Part No. 29849A

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

Tigercat M726E Mulcher

Introduction

ii

Tigercat M726E MulcherMULCHER Tigercat M726E

Introduction

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 M726E Mulcher serial number 726M3501 and up.

The M726E is a mechanical mulcher intended for use in forest mastication, vegetation management and land reclamation operations.

An optional multi-function hydraulic system and quick attach boom adapter allows the machine to be quickly and easily switched from a mulcher to a feller buncher for increased versatility.

When equipped with a felling head the M726E can be used 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 M726E Mulcher. There is also important information regarding the safe operation of the saw head. The service manual contains safety and servicing procedures and a preventive maintenance schedule to assist in repair and to ensure optimum machine performance. For manual part numbers, see the title page in each manual.

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, 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.

The phrase “and up” appearing in this manual after the serial number implies that the related information is current for any machine serial number HIGHER than the serial number preceding the “and up”.

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

Every effort is made to send out updates on a regular basis. If the machine in question was built after the release date of this manual and there is a discrepancy, call Tigercat service department. The release date appears on the first page.

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

Tigercat Industries Inc.

M726E-DIM

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Tigercat M726E Mulcher

Introduction

S.A.E. STANDARDS ROLL-OVER PROTECTION STRUCTURES (ROPS) FALLING OBJECTS PROTECTION STRUCTURES (FOPS) 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 modification(s) take place.

Tigercat may officially grant approval for modifications only by: i. Written approval of repairs or modifications signed by the Tigercat Engineering Manager; or ii. 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's 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 posibility 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 roll-over protective structures.

Tigercat Industries Inc.

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Tigercat M726E Mulcher

Introduction

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: i) 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. ii) 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.

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Tigercat M726E Mulcher

Introduction

vi

Tigercat M726E Mulcher SECTION 1 - SAFETY APRIL, 2010

Read and understand this safety section prior to operating any equipment.

Read and understand all manuals for any attachments or accessories.

CONTENTS - SECTION 1 BOOM LIFT LOCK ....................................................................................... 1.14 CAB EXITS .................................................................................................... 1.9 EMERGENCY CAB EXITS ............................................................................ 1.9 ENGINE ACCESS PANELS ......................................................................... 1.15 FIRE PREVENTION ..................................................................................... 1.21 DRY CHEMICAL CLEANUP PROCEDURES ........................................... 1.25 FIRE PREVENTION GUIDELINES ........................................................... 1.21 WHAT TO DO AFTER A MACHINE FIRE HAS OCCURRED .................. 1.24 WHAT TO DO TO PREPARE FOR A MACHINE FIRE ............................ 1.22 WHAT TO DO WHEN A MACHINE FIRE OCCURS ................................ 1.23 FLUID INJECTION INJURY ......................................................................... 1.16 GREASE INJECTION INJURY .................................................................... 1.17 HAZARD ZONE ............................................................................................. 1.3 LIGHTNING SAFETY AWARENESS LIGHTNING SAFETY ..................................................................... 1.18, 1.20 WHAT IS A LIGHTNING STRIKE? ........................................................... 1.18 MULCHING OPERATION SAFETY ............................................................. 1.10 PARKING THE MACHINE ............................................................................. 1.8 SAFETY INTERLOCK SWITCHES ON CAB DOORS ................................... 1.9 SAFETY LABELS ............................................................................... 1.26, 1.27 SAFETY PRECAUTIONS, GENERAL ........................................................... 1.2 SAFETY PRECAUTIONS, OPERATING ....................................................... 1.6 SAFETY PRECAUTIONS, SERVICING ............................................. 1.12, 1.19 SAFETY SYMBOLS ....................................................................................... 1.2 SIGNAL WORDS ........................................................................................... 1.2

Tigercat M726E Mulcher

Safety

SAFETY SYMBOLS

GENERAL SAFETY PRECAUTIONS Remember that 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 should always be followed and obeyed.

This safety alert symbol means ATTENTION! BECOME ALERT! YOUR SAFETY IS INVOLVED!

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

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.

Follow all instructions from safety inspector and supervisors.

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.

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

Do not let an untrained person operate the machine.

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

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

1.2

Tigercat M726E Mulcher

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

GENERAL SAFETY PRECAUTIONS continued

KEEP BACK 500 FEET

DANGER ROTATING CUTTER

DANGER

The safety of persons outside the cab is the responsibility of the machine operator

Thrown debris keep back 500 feet.

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

500 FEET

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.

500 FEET

500 FEET

Use the handrails and steps provided when mounting and dismounting from the machine.

500 FEET

Do not climb onto or jump off the machine at any time.

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

M724D-03

Do not use the joystick(s) or steering wheel as a handle to assist entering or leaving the cab.

HAZARD ZONE

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

Do not use the machine foot controls as a step.

DANGER Danger caused by flying debris.

Improper operation of the attachment and failure to follow safety precautions can result in personal injury.

When mounting or dismounting the machine always use the 3 point technique - Use 1 hand with 2 feet or 2 hands with 1 foot.

1.3

Tigercat M726E Mulcher

Safety

GENERAL SAFETY PRECAUTIONS continued Avoid mounting or dismounting the machine in areas with slippery surfaces. If this is not possible clean up or cover slippery surfaces with a nonslip material.

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

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 IDLE and let run for approximately 5 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.

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.

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

Machine should be washed completely before and after every major service.

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

Be aware when performing service and maintenance tasks that 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.

Check windows and door guards for damage.

Working with oil

Check protective windows for cracks, a damaged window has reduced strength to stop flying objects.

Direct contact with oil implies a risk of skin complaints (example: eczema). Strict hygiene should always be observed.

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

Some advice which should be observed:

Inspect the machine daily for signs of damage or unusual wear, to ROPS, FOPS, OPS structures.

•

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, or other devices removed.

• • • 1.4

Oils used in this machine may be hot enough to cause serious burns.

Avoid contact with oil, particularly heated oil.

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

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

Don't put oily rags in your pockets.

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.

Tigercat M726E Mulcher

Safety When moving the machine, watch that 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.

GENERAL SAFETY PRECAUTIONS continued • • •

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

Avoid breathing in oil fumes.

Wash hands and arms frequently (example: at each meal break or as often as possible).

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.

Safety Hazards - Viton Seals O-rings and other seals manufactured of Viton material produce a highly corrosive acid when subjected to temperatures above. 600°f (315°c).

Maintain a distance of 10 feet. (3 meters) between the machine or boom and any power line carrying up to 50,000 volts or less plus 1/2 inch (10 mm) for each additional 1,000 volts above the 50,000 volt level.

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

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

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

Visually inspect any seals or gaskets which have suffered from heat; they will appear black and sticky.

If the machine must be transported, make sure that it is adequately secured to the transporting vehicle.

•

If these are found, Do Not Touch!!!

•

Determine the material composition of any seals or gaskets, If fluoro-elastomer 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.

Even though the brakes are fully engaged, block the wheels to prevent movement during transport.

•

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

•

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

Install the articulation lock bar when ever the machine is to be transported.

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

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

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.

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

Maintain a charged fire extinguisher on the vehicle at all times and KNOW HOW TO USE IT.

WARNING Battery posts, terminals and related accessories contain lead and lead compounds. Wash hands after handling.

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.

Do not allow anyone to operate the machine who may not be physically fit or who may be under the influence of alcohol or drugs.

1.5

Tigercat M726E Mulcher

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

OPERATING SAFETY PRECAUTIONS

Make sure that all safety screens and guards including the skylight are installed and properly secured.

Do not open an escape hatch or the cab doors to increase ventilation when operating the machine.

Shut off engine when refuelling - DO NOT refuel the engine while smoking or near open flame or sparks.

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

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

Sound the machine horn before starting the machine.

The operator’s seat is equipped with either a lap belt or lap and shoulder harness belts. Use either of these restraint systems at all times when operating the machine.

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

Never use the parking brake to slow down or stop the machine except in an emergency.

Keep the brake properly adjusted at all times.

Start the engine according to the instructions in this manual. Refer to OPERATING MACHINE in SECTION 2 of the OPERATOR'S MANUAL. Always rest the attachment on the ground when operation is stopped, regardless if the engine is running or shut off.

WARNING

Never use a liquid staring aid to start an engine.

Before moving the machine to the work site, check to ensure that all doors, panels, and access covers are installed properly and secured.

Machine operations should only be performed from the operator's seat.

Secure loose items in the cab.

1.6

Tigercat M726E Mulcher

Safety

OPERATING SAFETY PRECAUTIONS continued

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.

When working on slopes, travel straight up or down the slope to prevent roll-over.

NEVER travel across a STEEP slope or side hill:

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

Boom supports encroach on cab door opening when machine is steered.

•

Do not run engine when persons are on steps or in doorway area.

•

Serious injury or death could result from crushing.

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

Do not turn on cutter until machine is at cutting site.

Never travel near co-workers or other pieces of equipment with cutter turning.

Do not allow people or other pieces of equipment near the machine during operation.

Use only prearranged and approved signalling practices.

Operate the machine only from a seated position in the operator’s seat.

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

When travelling position attachment and boom accordingly so as not to impair vision.

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

1.7

•

If you travel across a MODERATE slope, NEVER make an uphill turn as this could cause a tip-over situation.

•

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

Tigercat M726E Mulcher

Safety

OPERATING SAFETY PRECAUTIONS continued Park machine at least 50 feet (15 meters) away from other equipment and in a cleared area. In the event of a fire, this distance will minimize the chance of the fire spreading to other equipment.

Before leaving operator's cab, apply the parking brake and lower the attachment onto the ground.

724E-017

•

If out of the operator's cab for an extended period shut the machine off.

Park on level ground.

•

Do not park on a hillside or incline.

•

Lower attachment onto level ground.

•

Engage the parking brake.

Turn the battery disconnect switch off if the machine is to be parked for an extended period of time (Example - overnight).

NOTE: Wait for 30 seconds after turning key switch off before turning the battery disconnect switch off. The engine ECM requires time after the engine is turned off to record the engine data and log the information for the current operating session. If the battery disconnect is turned off too soon, the data will not be recorded and an error message will be displayed when the battery power is turned back on and the key switch is turned on.

When parking the machine: •

24863A

CAUTION PRESSURIZED HYDRAULIC TANK. Before servicing any hydraulic components, vent hydraulic tank. Refer to SECTION 2 of this manual for VENTING THE HYDRAULIC TANK procedure.

When travelling on public roads, use accessory lights (when installed) and other cautionary devices to provide operators of other vehicles warning of your approach. Ensure your machine meets all regulatory requirements.

•

Stop the engine and vent the hydraulic tank.

Refer to SECTION 2 of this manual for VENTING THE HYDRAULIC TANK procedure.

•

Release pilot system pressure by performing the following steps:

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

1. Close both doors. Turn key switch to ON position. Do not start the engine. Press pilot reset switch.

Complete either steps 2A or 2B. 2A.Fully apply brake foot pedal 50 times or more.

2B.Turn rear differential switch ON and hold front differential lock switch ON for 30 seconds. While waiting, pump brake foot pedal at least 10 times.

3. 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.

1.8

Tigercat M726E Mulcher

Safety

OPERATING SAFETY PRECAUTIONS continued

SWITCH

•

Before moving the machine to the work site, check to ensure that all doors, panels, and access covers are installed properly and secured.

ACTUATOR

•

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

1. Left door, this is also the main point of entry and is the only door that should be used under normal operating conditions to enter or leave the cab. This door is also equipped with a SAFETY INTERLOCK SWITCH. See SAFETY INTERLOCK SWITCH ON DOORS in THIS SECTION.

M726E-020

INTERLOCK SWITCH (L.H. DOOR SHOWN)

SAFETY INTERLOCK SWITCHES ON DOORS: Both doors are equipped with safety interlock switches to prevent the machine from being operated while either of the doors are open (pilot system is shut off).

2. Right 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 a SAFETY INTERLOCK SWITCH. ALWAYS shut OFF engine before using the right door exit.

CAUTION Safety interlock switches DO NOT lock out the steering function on machines equipped with a steering wheel.

3. Escape hatch, this is a third cab exit for use if the cab door exits become blocked.

This hatch is not equipped with a safety interlock switch and therefore when left open will not deactivate the pilot controls in the cab.

ALWAYS shut OFF engine before using the escape hatch exit.

CAUTION DO NOT use the steering joystick to assist entering or leaving the cab.

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

It is important that the operator of the machine be familiar with these emergency exits and how to use them.

To operate: Close both doors and press the PILOT RESET switch.

All three exits should be checked to make sure that they are operational and will function in an emergency. The safety interlock mechanism on the cab doors and escape hatch retaining mechanisms must not be tampered with or defeated.

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

IMPORTANT

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.

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

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

For additional information, refer to EMERGENCY EXITS in SECTION 2 of the OPERATOR'S MANUAL.

1.9

Tigercat M726E Mulcher

Safety DANGER ZONES

OPERATING SAFETY PRECAUTIONS continued

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

MULCHING OPERATION SAFETY

Operate so that the main discharge areas of the mulching head are not directed at people, livestock, buildings or other machines.

Land clearing operations generally involve other machinery and people on the site. Operators must maintain an awareness of all working traffic within 500 feet of the mulching operation.

Throw distance for metal pieces and stones can be many times the distance for wood chips.

Pieces of wood, debris from the ground and even cutting tools separating from the rotor become potentially dangerous projectiles when thrown from these machines.

Danger is greater if the site contains stones or abandoned metal.

Poor maintenance increases the danger.

Through timely inspection and replacement of worn cutter tools, fasteners and wear plates.

Always heed warning signs of missing cutter tool parts or sounds of striking rocks and adjust operation to suit the site.

Inspect cutter tools, cutter tool fasteners, rotor and mulching head assembly.

Ensure that all cutter tool retaining bolts are at correct torque value.

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

Replace all worn cutter tools.

Always replace the fastener whenever replacing a cutter tool.

REAR DANGER ZONE Chunks of wood and rock can be thrown from the rear of the mulching head. This occurs when the mulching head is raised high enough to allow debris to escape the guard chains. No one should be allowed within the HAZARD ZONE. This condition is dangerous, refer to HAZARD ZONE in THIS SECTION. The following precautions should be followed:

Inspect the rotor for weld cracks and other damage.

Check that the rotor does not wobble due to worn shaft bearings.

Never start or use a machine if the rotor has missing cutting tools, missing cutting tool fasteners or a bent rotor.

Shut down the machine immediately if you feel excessive vibration when the rotating cutter is running.

• •

Check that the cutter housing is clear and undamaged.

•

DANGER ROTATING CUTTER

FRONT DANGER ZONE To the front a lower volume of projectiles may be experienced. However, no one should be allowed within the HAZARD ZONE. Refer to HAZARD ZONE in THIS SECTION. The following precautions should be followed:

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

Danger caused by flying debris. Improper operation of the attachment and failure to follow safety precautions can result in personal injury.

FRONT DANGER ZONE

• 726M-026

Never allow anyone to the rear of the machine while it is in operation.

Inspect daily for damaged or missing guard chains. Replace them before operating.

Be especially careful when the tool is lowered onto new material and when the tool is raised up and out of material it has been working.

•

REAR DANGER ZONE

•

•

•

Never allow anyone to the front of the machine while it is in operation.

Close the mulch door (if equipped) while pullworking to better contain debris. This also increases the fineness of the shredded product.

Be especially careful when the tool is lowered onto new material and when the tool is raised up and out of material it has been working.

DO NOT operate without guards.

DANGER ZONES 1.10

Tigercat M726E Mulcher OPERATING SAFETY PRECAUTIONS continued URBAN PRECAUTIONS Increased safety precautions are required when working: • • • •

Near streets Near highways In parks, on golf courses or other inhabited areas.

Near buildings

Establish Safety parameters that fit the site: • • •

String coloured warning tape to cordon off the area.

Use a traffic director when the hazard zone impinges on pedestrian or vehicular traffic.

Erect barriers.

Safety ANIMAL REMAINS Animal remains such as calf and deer carcasses will plug the machine due to their leathery skin.

Avoid the unpleasant task of removing the remains from the rotor.

AVOID FENCES Do not drive the mulcher into fences, especially chain link fences. Chain link fencing can damage the rotor. Refer to AVOID METAL AND WIRE above.

When operating mulching head properly position head for push working and pull working for safety and improved operation.

When tree toppling always know and control the direction a tree will fall to prevent injury to coworkers or damage other vehicles.

CAUTION

ASSESSING THE POTENTIAL DANGERS OF THE JOB SITE Before working in a new area a visual survey of the area to be worked is helpful in identifying undesirable materials which may be present.

Remove as much of the undesirable materials as is practical before proceeding.

AVOID METAL AND WIRE. Metal can break cutter tools and create a projectile hazard.

Wire wraps itself around the rotor shaft especially near the bearings. Near bearings this can cause wire to enter past the grease seals and cause damage to bearings if it is not removed promptly.

USE CAUTION WITH STRINGY VEGETATION Shredding materials like Palmetto, Bird of Paradise, and yard waste tied with plastic should be approached with caution. Stringy vegetation and plastic ties gravitate toward the bearings.

The operator should exercise caution while working with this type of material.

AVOID PLASTICS Hoses, bags, tarps and ropes must be removed as soon as they are seen.

Mattresses, rugs, clothes and cloth will plug the machine immediately.

To prevent component damage, always have deflector door open when preparing to fell standing trees Work within your operating skills, do not attempt to cut down a tree that is too large to handle.

When pull working (moving in reverse), watch for obstacles in your path.

Always travel with mulching head as close to the ground as possible, never elevate the mulching head unless necessary.

Never use this machine to clear an area when other equipment and operator's are also moving in. Pre-plan to work the area in advance before other equipment arrives.

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

Stop the rotating cutter before leaving the mulching area. NOTE: The cutter will continue to free wheel for several minutes after the cutter switch has been turned OFF. To stop cutter from rotating, CAREFULLY lower the rotor onto a stump. This should be done gently to prevent unnecessary loading of the rotor, housing and bearings.

Inspect the rotor for clinging strands often.

1.11

Tigercat M726E Mulcher

SERVICING SAFETY PRECAUTIONS Conduct maintenance inspections at least as frequently as recommended in SECTION 3 of the OPERATOR'S MANUAL. When servicing or repairing equipment, shut the engine down, and disconnect the negative (-) battery cable from both batteries.

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

Safety This machine is equipped with sensitive electronic control equipment, prior to welding:NOTE: Wait for 30 seconds after turning key switch off before turning the battery disconnect switch off. The engine ECM requires time after the engine is turned off to record the engine data and log the information for the current operating session. If the battery disconnect is turned off too soon, the data will not be recorded and an error message will be displayed when the battery power is turned back on and the key switch is turned on.

1

••

724E-017

24863A

Turn Battery Disconnect Switch (1) to the OFF position and disconnect the negative (-) battery cable from both batteries.

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

DISCONNECT THE TWO MULTI-PIN PLUGS FROM THE ENGINE CPU

•

The radiator and the engine cooling system should be cleaned and serviced at least daily to maintain moderate engine temperatures.

WARNING This machine is equipped with a reversible cooling fan. Exercise care when working in this area with the engine running.

726E-001

Disconnect the engine CPU (Central Processing Unit) and engine wiring harness by unplugging the multi-pin connectors.

DISCONNECT MULTI PIN CONNECTOR

This machine is equipped with a reversible cooling fan to facilitate cleaning of the charge air cooler, radiator and oil cooler assembly. Exercise care when working in this area with the engine running.

If the fan switch in the cab is in the AUTO position, the fan could turn ON and/or go into REVERSE mode without warning.

Prior to welding on any part of the machine, it should be cleaned and a fire extinguisher should be made available at the welding location. Care must be taken in attaching the welding machine grounding clamp so electrical current does not pass through bearings, especially the center joint bearing.

••

••

724E-025

DISCONNECT PLUS 1 CONNECTOR

Disconnect the Plus 1 Controller by unplugging the multi-pin connector.

1.12

Tigercat M726E Mulcher

Safety

SERVICING SAFETY PRECAUTIONS continued WARNING Beware of the pneumatic and hydraulic stored energy sources (pressurized systems) on this machine. Vent and relieve trapped pressure as outlined in this section before performing work on components, or disconnecting any hoses.

Understand maximum pressures permitted in each pressurized system and DO NOT EXCEED MAXIMUM PRESSURE! A

C

B

PRESSURIZED WATER SYSTEM IN CAB

PRESSURIZED HYDRAULIC OIL TANK

PRESSURIZED AIR SUPPLY TANK

•• • & PILOT SYSTEM D BRAKE ACCUMULATORS

•• •

Pressure can be maintained in a hydraulic system long after the power source and pump have been shut down. Lower the attachment to the ground, stop engine, vent hydraulic tank, and relieve trapped pressure from pilot system and brake accumulators before performing work on components, or disconnecting any hoses. For the procedure on how to RELIEVE PRESSURE, refer to PARKING THE MACHINE in THIS SECTION.

CAUTION MACHINES 726M3501 TO 726M3600 ARE EQUIPPED WITH A PRESSURIZED HYDRAULIC TANK. Before servicing any hydraulic components, vent hydraulic tank.

Refer to SECTION 2 of this manual for VENTING THE HYDRAULIC TANK procedure.

•

E PRESSURIZED WATER TANK

WARNING 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.

On machines 726M3501 to 726M3600 the hydraulic tank is pressurized by the air compressor air supply system. Lower the attachment to the ground, stop engine, vent hydraulic tank, and relieve trapped pressure from pilot system and brake accumulators before performing work on components, or disconnecting any hoses. For the procedure on how to RELIEVE PRESSURE, refer to SECTION 2 of this manual for VENTING THE HYDRAULIC RESERVOIR procedure.

Never use 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.

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

Shut off engine. Only remove filler cap when cool enough to touch with bare hands. Slowly loosen cap to first stop to relieve pressure before removing completely.

Do not change any pressure or relief setting unless authorized instruction has been obtained.

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

1.13

Tigercat M726E Mulcher

Safety

SERVICING SAFETY PRECAUTIONS continued

WARNING

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

• Always install 'T' handle retainer bolt • Use only to support boom and cutting head • Do not use to set hydraulics pressures

CAUTION

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.

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.

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

REAR CHASSIS

FRONT CHASSIS

•

••

RETAINING PIN

•

WARNING •• LYNCH PIN

•

LOCK BAR

WARNING, HOT FLUIDS AND HOT MACHINE SURFACES CAN CAUSE SERIOUS BURNS!

LOCK BAR IN LOCKED POSITION

•

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

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

•

Never stand under an object supported with hydraulics. Always use safety stands or a locking device.

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)!

726D-039

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

WARNING Always allow the cutter to come to a COMPLETE STOP before approaching attachment to make adjustments.

1.14

Tigercat M726E Mulcher

Safety

SERVICING SAFETY PRECAUTIONS continued

20231A R1

Compartment door and panel handles should be hand tight only at all times for easy access to the engine compartment and the pressurized water system in the event of a fire or other emergency. Refer also to FIRE PREVENTION in THIS SECTION. HAND KNOB

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.

Work in a ventilated area. If it is necessary to run an engine in an enclosed area, use an exhaust pipe extension to remove toxic exhaust fumes.

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

L.H. SIDE ACCESS PANELS

•

•

•• ••

Dispose of fluids properly.

726-001

L.H. ENGINE ACCESS PANELS

R.H. SIDE ACCESS PANELS

••

HAND KNOB

• •

726-002

Do not pour fluids into the ground, stream, pond or lake.

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

••

R.H. ENGINE ACCESS PANELS

1.15

Tigercat M726E Mulcher

Safety

SERVICING SAFETY PRECAUTIONS continued

WARNING Diesel fuel or hydraulic fluid under pressure can penetrate the skin and could result in death or serious injury. 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.

FLUID INJECTION INJURY 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 should occur, 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.

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.

Diesel fuel or hydraulic fluid under pressure can penetrate the skin and could result in death or serious injury. 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.

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

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.

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.

When searching for possible fluid leaks • Never search for leaks with your bare hands.

Always wear thick protective gloves.

• Be sure to wear safety goggles for eye protection.

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

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

•

Place the end of a long piece of wood in the suspected path of any fluid stream. Never use any part of your body.

• 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.

• Never grab any hydraulic or diesel fuel connectors or hoses when they are subjected to pressure.

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

• Never use any hoses that you suspect could be defective.

1.16

Tigercat M726E Mulcher

Safety

SERVICING SAFETY PRECAUTIONS continued 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.

•

Ensure that protective shrouds are installed 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.

1.17

Tigercat M726E Mulcher

LIGHTNING SAFETY AWARENESS WHAT IS A LIGHTNING STRIKE? 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.

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.

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.

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.

Safety LIGHTNING SAFETY 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.

Loggers can increase their chances of avoiding a lightning strike by following a few simple safety practices.

1. Designate a member of your crew to

•

Monitor daily weather forecasts

•

Observe local weather conditions

•

Alert all other members of the crew when a possible lightning threat develops.

2. Don’t start or continue any work that cannot be stopped immediately, when a storm moves nearby.

3. 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.

4. Obey the rule - If you see lightning, Flee. If you hear thunder, Clear.

5. 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. Always follow step 4.

6. 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.

1.18

Tigercat M726E Mulcher LIGHTNING SAFETY AWARENESS continued 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.

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.

Safety WHAT TO DO IF YOU ARE OUTSIDE AND SEE LIGHTNING OR HEAR THUNDER. If you can, get inside.

1. Run to the nearest building, motor vehicle or fully enclosed ROPS equipment cab immediately. Being anywhere outside is not safe.

2. If inside a building: •

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

•

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

3. 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.

•

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.

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.

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.

•

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

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

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.

1.19

Tigercat M726E Mulcher

Safety

LIGHTNING SAFETY AWARENESS continued

What to do if you feel your skin tingling, your hair stands on end, light metal objects vibrate or you hear a crackling sound.

If you are caught outside and have no where else to go.

1. Lightning is probably about to strike. You only have a few seconds to act.

1. Avoid wide-open areas where you project above the surrounding landscape.

2. 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.

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

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

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

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

3. 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.

6. Avoid entering any small enclosures or shelters.

1. The victim does not carry any electrical charge. There is no danger to anyone helping this person. You can touch him or her immediately.

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

2. Call your local emergency response telephone number immediately.

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

3. If the victim has no pulse, their heart has stopped or they have stopped breathing, start cardiopulmonary resuscitation (CPR) or mouth –to-mouth resuscitation immediately.

Use a portable defibrillator if one is available.

9. 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.

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

11. Do not use the telephone except for emergencies.

4. 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

1.20

Tigercat M726E Mulcher

Safety 4. 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.

FIRE PREVENTION

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

1. Maintain a CHARGED fire extinguisher on the machine at all times and KNOW HOW TO USE IT. 2. 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 CLEANING A/C CONDENSER, OIL COOLER AND RADIATOR in SECTION 2 of the OPERATOR’S MANUAL. 3. 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 smolder. If dislodged this smoldering debris can fall into other areas of the machine and thereby spread a fire.

5. 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.

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

7. 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.

8. Use only nonflammable solutions for cleaning the machine and components.

9. 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.

10. 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.

11. Park the machine at least 50 feet away from other equipment at the end of each shift.

12. Never leave the machine parked with boom, arch or blade suspended off the ground. Should their supporting hydraulic hoses burn through during a fire, pressurized hydraulic oil may be injected into the fire and the boom, arch or blade will fall rapidly to the ground.

1.21

Tigercat M726E Mulcher FIRE PREVENTION continued 13. Turn the battery disconnect switch to OFF at shut down to de-energize all electrical circuits.

14. Remain with the machine for at least 45 minutes at the end of operations while the machine cools.

Safety 17. 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.

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

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

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

EQUIPMENT FIRES ADVERSELY EFFECT YOUR ABILITY TO LOG, MAY INCREASE YOUR INSURANCE PREMIUMS DRAMATICALLY OR PREVENT YOU FROM OBTAINING INSURANCE COVERAGE AT ALL.

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.

•

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 of the OPERATOR’S MANUAL.

•

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.

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

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.

16. 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.

1.22

Tigercat M726E Mulcher FIRE PREVENTION continued •

•

•

•

•

•

•

Ensure that 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.

Ensure that your fire detection system* is in working order. Refer to FIRE DETECTION SYSTEM in SECTION 2 of the OPERATOR’S MANUAL. Ensure that your fire suppression system** is charged and in working order. Refer to FIRE SUPPRESSION SYSTEM in SECTION 2 of the OPERATOR’S MANUAL. 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: 1. Workers assigned to fire fighting duties must be physically capable of performing them safely and effectively.

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

3. 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.

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

Ensure that after you have received the training as outlined above, that you know how to use the fire extinguisher, the pressurized water system (if applicable) and the fire

Safety WHAT TO DO WHEN A MACHINE FIRE OCCURS •

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

2. Shut the engine off.

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.

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

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.

5. Be aware that 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.

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.

suppression system** on your machine.

There is not enough time available to read instructions during a fire emergency.

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

1.23

Tigercat M726E Mulcher FIRE PREVENTION continued •

Safety WHAT TO DO AFTER A MACHINE FIRE HAS OCCURRED •

1. Ensure that the cause of the fire is determined and all appropriate repairs are completed.

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.

•

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.

•

•

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

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

Before returning the machine to work.

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

3. Ensure that all extinguishers used in fighting the fire are replaced or recharged.

•

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.

20229A

•

• •

•

•

TYPICAL FIRE EXTINGUISHER ACCESS HOLE

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

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

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

Ensure that the machine and all components have cooled down sufficiently after a fire so that re-ignition does not occur.

Remain with the machine until help arrives.

1.24

Tigercat M726E Mulcher 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.

Safety 3. 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.

The following are recommendations for the cleanup and neutralizing of areas exposed to dry chemical powder.

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. 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.

2. In areas exposed to moisture, the dry chemical powder will combine with water to form a paste that is mildly acidic. Note that all surfaces covered by this dry chemical paste including electrical contacts are vulnerable to corrosive attack.

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. Blowdry 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 non-corrosive and non-conductive such as CRC Contact Cleaner 2000.

1.25

Tigercat M726E Mulcher

Safety FIRE PREVENTION!

SAFETY LABELS SAFETY LABELS CAB LABEL

OPERATOR'S MANUAL LOCATION This label indicates the storage location of the operator's manual.This label is located on the outside of the operator's manual case inside the cab.

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.

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!

1.26

Tigercat M726E Mulcher KEEP BACK

This label warns personnel to KEEP BACK 150M / 500FT due to flying projectile hazard. Danger exists most prominently to the front and rear of the mulching head.

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

Safety ROTATING CUTTER KEEP BACK

This label warns of the ROTATING CUTTER hazard. All personnel must keep a safe distance from the mulching head when the cutter is rotating.

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

Danger caused by flying debris. Improper operation of the attachment and failure to follow safety precautions can result in personal injury.

1.27

Tigercat M726E Mulcher CHECK DAILY

Safety FIRE EXTINGUISHER ACCESS HOLE

This label indicates the location of each FIRE EXTINGUISHER ACCESS HOLE. The label is installed on each fire extinguisher hole on the engine hood.

This label is installed in the cab. In addition to the previous label it 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.

1.28

DANGER USING HIGH SPEED DISC SAWS SAFELY This information is intended to encourage logging organizations and operators to develop and practice additional rules that 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.

CONTENTS COMMENTS AND INSTRUCTIONS DIRECTION OF THROW ........................................................ 7 HIGH ANGLE WRIST ROTATION ABILITY ............................ 8 RECOGNIZING THE DANGERS ............................................ 7 THROWING LONG WOOD PIECES .................................... 10 DANGERS ................................................................................. 3 FORWARD ................................................................................. 2 BE AWARE OF THE HAZARDS ............................................. 2 OTHER INSTRUCTIONS ....................................................... 3 SAFE PRACTICES ................................................................. 3 SEVERAL TYPES OF HEADS INVOLVED ............................. 2 STORED ENERGY ................................................................. 2 HIGH ANGLE WRIST ROTATION CAPABILITY ......................... 9 SAW HEAD DON’TS ................................................................ 15 TYPE OF HOUSING MAKES A DIFFERENCE ......................... 4

Tigercat

5211A • R2-1101

PAGE 1 OF 16

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using high speed disc saws safely FORWARD:

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Several types of heads involved Tigercat wheel type feller-bunchers and crawler feller-bunchers can be supplied with several optional makes and models of high speed disc saw tree felling heads. Because each has certain advantages and disadvantages they are chosen where they best do specific types of work.

Stored energy The saw blade stores energy from the hydraulic motor during the times between tree cuts so that it can supply up to 1000 hp during a 1 sec tree cut. However this rotational energy, if misapplied can result in wood materials or other objects being thrown strongly enough to cause damage and to hurt people.

Be aware of the hazards It is important that users of machines with disc saw felling heads are aware of certain safety precautions that need to be taken. In this section some previously unknown, unexpected safety hazards are illustrated and explained . These should be studied before use of the machinery and then reviewed again after use has begun.

FIGURE 1: BROADSIDE SAW CONTACT WITH A LOG COULD PRODUCE A THROW

FIGURE 2: A SUDDEN MACHINE MOVEMENT MAY CAUSE AN UNEXPECTED THROW AT THE CAB

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Safe practices It is understood and expected that logging organizations and operators will develop and practice additional rules that suit (for example) particular conditions of terrain, trees, soil and job requirements. The information given here 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 hence to assist in development of safe operating practices.

It should not be assumed that all possible dangers have been discovered and described here.

Other instructions It is also understood and expected that all instructions contained in service and operator's manuals for use and maintenance of Tigercat disc saw heads and other disc saw heads installed on Tigercat machines will be followed.

THE DANGERS

There are at least these means by which a rotating disc saw can cause harm by throwing: • 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.

• Metal pieces from the blade or from objects encountered 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.

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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.

Figure 3 shows a typical commonly used saw housing plan where there is 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 throw. There are snouts on both sides of the mouth so that if pushed against the side of a felled tree or log the saw teeth will not contact the wood.

THROW ANGLE

IF A SAW HEAD IS PUSHED AGAINST THE SIDE OF A FELLED TREE, SNOUTS PREVENT SAW TEETH FROM CONTACTING WOOD.

•

•

FIGURE 3: TYPICAL COMMONLY USED SAW HOUSING, CONTINUOUS SKIRT WITH OPENING WHERE TREES ARE CUT. SNOUTS ON BOTH SIDES OF THE MOUTH.

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Figure 4 shows another commonly used plan. It has no blade guarding snouts so that the saw blade teeth do protrude ahead of the housing. This may be preferred over figures 3 and 5 for dexterity in tree getting.

THROW ANGLE

IF A SAW HEAD WITHOUT SNOUTS IS PUSHED AGAINST THE SIDE OF A FELLED TREE, SAW TEETH WILL CONTACT WOOD.

FIGURE 4: ANOTHER COMMONLY USED HOUSING PLAN WITH NO SNOUTS, BLADE TEETH PROTRUDE AHEAD OF THE HOUSING.

In figure 5 there is 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 snout.

THROW ANGLE

NUDGED LOG WILL NOT CONTACT SAW TEETH.

• EXTRA LENGTH OF SNOUT WILL INTERCEPT PORTION OF THROWN MATERIAL.

FIGURE 5: HOUSING USES LONGER SNOUT ON IN-GOING SIDE OF MOUTH WHERE ROTATING BLADE ENTERS HOUSING.

5

using high speed disc saws safely Housing types cont.

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In figure 6a and 6b there is an additional opening in the housing skirt. Openings in this location are sometimes provided for escape of wood chips produced by the saw teeth in the cut and being taken into the housing.

A CHIP ESCAPE PORT CAN ALLOW THROW BEHIND THE MACHINE

REAR

FRONT

FIGURE 6a

FIGURE 6b

FIGURE 6c

FIGURE 6: ADDITIONAL OPENING IN THE HOUSING SKIRT.

In figure 6c a guard has been added to the chip escape port so that tangential travel of chips and other material is intercepted as soon as it leaves the housing.

Each figure shows 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.

It is important that the operator familiarize himself with the blade rotation direction, the effectiveness of any snout on the in-going side and which direction any chip escape ports allow material to fly.

6

using high speed disc saws safely COMMENTS AND INSTRUCTIONS

Tigercat

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Recognizing the Dangers While it may appear that these illustrated danger areas can be visually recognized on the job by observing how far chips fly during a cut, that is only 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.

Direction of throw 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 angle of throw is pointed by boom geometry, 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.

Assessing the potential dangers on the job site The extent of danger from high speed disc saws on the logging operation has to be assessed on the job site, depending on how much other work activity is in the area and whether the operator can do his 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.

7

using high speed disc saws safely Comments and Instructions cont.

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

High angle wrist rotation ability When a felling machine is equipped with a high speed disc saw head with a high angle wrist rotation ability it should be determined that the limits of the boom, stick, tilt, wrist, upper leveling and any other freedoms, do not permit a direct throw at the operators cab during normal operation, see figure 7a. It is probably essential that the housing have a long snout on the throw side and that if a chip escape port is used 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, refer to figure 2 and 7b. 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 especially constructed to prevent penetration by accidentally thrown objects.

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using high speed disc saws safely

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FELLING HEAD • WITH A CHIP ESCAPE PORT AND SHORT SNOUT. • SHOWN IN A HIGH ANGLE WRIST ROTATION POSITION, PLACING OPERATOR'S CAB IN DIRECT LINE WITH UNGUARDED CHIP ESCAPE PORT

FIGURE 7a

PLAN VIEW OF MACHINE SHOWING CLOCKWISE AND COUNTERCLOCKWISE BLADE ROTATION

FIGURE 7b FELLING HEAD • WITH LONGER SNOUT ON THROW SIDE OF OPENING AND WITH A GUARDED CHIP ESCAPE PORT.

FIGURE 7: DISC SAW FELLING HEAD WITH HIGH ANGLE WRIST ROTATION CAPABILITY

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using high speed disc saws safely Comments and Instructions cont.

Tigercat

Throwing long wood pieces Dangers from throws of long wood pieces are illustrated in figures 8 to 11. 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. If the wood is held firmly in all directions and the saw advanced into it at any feed speed, cutting will take place. If the wood is only held against escape from the saw radially, but not held tangentially, then the wood will be both partly cut and partly moved tangentially. In this last case tests have shown that if the piece of wood is backed-up by a solid slippery surface; and if the feed in is very fast; and if the piece of wood is long enough; then the tangential movement is a dangerous spear-like throw.

A SLAB, WHICH COULD LATER BE THROWN, MIGHT HAPPEN WHEN NOT ENOUGH ROOM IN HEAD TO COMPLETELY CUT THE LAST TREE

SLAB

•

SLAB

• FE

ED

IN

FIGURE 8a: HOW A SLAB CAN BE THROWN FROM THE SIDE OF A LOG

TH DIR ROW EC TIO N

SAW HOUSING HAS SKIS, BUT WITHOUT SNOUTS AND BLADE TEETH PROTRUDE AHEAD OF THE HOUSING.

FIGURE 8

THROW ENGAGEMENT DISTANCE FELLING HEAD MOVING INTO SLAB/LOG

®

SLAB

LOG A LONG THROW ENGAGEMENT DISTANCE CAN CAUSE A DANGEROUS SPEAR THROW

• •

FIGURE 8b SIDE VIEW

FEED IN

IF THE SIDE OF A LOG CAN CONTACT THE SAW, THE THROW ENGAGEMENT DISTANCE CAN BE LONG

10

FIGURE 8c TOP VIEW

using high speed disc saws safely Comments and Instructions cont.

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Figures 8 and 9 show two ways that this might happen in the woods if using the saw head of figure 4 (where the throw contact can be long). 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. 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 SMALL LOG IN A PILE OF OTHER LOGS MIGHT ALSO BE PROPELLED OUT WITH ENOUGH LENGTH OF CONTINUED CONTACT WITH THE BLADE TO REACH NEAR SAW TIP SPEED.

• FE

ED

IN

FELLING HEAD MOVING INTO LOG PILE

FIGURE 9a: HOW A LOG CAN BE THROWN LIKE A SPEAR SAW HOUSING WITHOUT SNOUTS AND BLADE TEETH PROTRUDE AHEAD OF THE HOUSING.

SMALL LOG

THROW ENGAGEMENT DISTANCE LOG PILE

FEED IN

•

•

A SAW HOUSING WITHOUT SNOUTS ALLOWS A LONG THROW ENGAGEMENT DISTANCE

FIGURE 9b SIDE VIEW

FIGURE 9c TOP VIEW

IF THE SIDE OF A LOG CAN CONTACT THE SAW, THE THROW ENGAGEMENT DISTANCE CAN BE LONG

FEED IN

11

using high speed disc saws safely Comments and Instructions cont.

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Figure 10 shows how 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.

UNCUT TREE OR STUMP BACKUP THROW ENGAGEMENT DISTANCE

• WHEN ONLY THE END OF A LOG CAN MAKE CONTACT WITH THE SAW, THERE IS NOT MUCH THROW ENGAGEMENT DISTANCE

FIGURE 10: FELLING HEAD HOUSING WITH SNOUTS DOES NOT ALLOW A LONG THROW CONTACT

FELLING HEAD MOVING INTO LOG

Figure 11 warns that 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.

FELLING HEAD MOVING INTO STUMP (FEED SPEED)

FIGURE 11: A BLOCK OF WOOD CAN BE TOSSED WHEN TRIMMING STUMPS

12

using high speed disc saws safely Comments and Instructions cont.

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Saw blade throw gap 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, see figure 12. Fallen sticks and debris or sticks and debris sliding across the the saw blade can enter these gaps when the blade is rotating and be struck by the teeth and be tossed or thrown. Larger gaps and lower rotation speeds increase these dangers.

THROW GAP

FIGURE 12: SAW BLADE THROW GAP

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using high speed disc saws safely Comments and Instructions cont.

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Saw housing entrance and exit space 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 will allow most things inside to be thrown out, see figure 13. Its throw direction and angle must be respected. A long snout on the other side reduces this danger.

THE INGOING ENTRANCE OF THE HOUSING FOR THE SAW RIM OF TEETH SHOULD BE SMALL

THE OUTGOING OPENING IS LARGER TO ALLOW THE HOUSING TO CLEAN ITSELF AND WILL ALLOW MOST THINGS INSIDE TO BE THROWN OUT

FIGURE 13: SAW BLADE ENTRANCE AND EXIT SPACE

14

using high speed disc saws safely Comments and Instructions cont.

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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.

Tigercat is continuing to do design and testing of 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.

The following are some “SAW HEAD DON’TS” that apply particularly to throw prevention.

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 blade speed is low.

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

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

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

Do not select and operate heads that throw rearward.

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

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

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using high speed disc saws safely

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Tigercat M726E Mulcher SECTION 2 - CONTROLS AND OPERATION CONTENTS - SECTION 2

APRIL, 2010

ACCUMULATING ARMS .................................................................................................................... 2.8 AIR CLEANER, ENGINE AIR ........................................................................................................... 2.41 AIR CLEANER UNLOADER VALVE ................................................................................................. 2.41 AIR COMPRESSOR ......................................................................................................................... 2.43 AIR COMPRESSOR - AIR SUPPLY ................................................................................................. 2.43 AIR CONDITIONER/HEATER ........................................................................................................... 2.18 AIR SUPPLY DRAINING THE SYSTEM ............................................................................................................. 2.43 AIR VENTS ....................................................................................................................................... 2.18 ARTICULATION LOCK BAR ............................................................................................................. 2.56 ATTACHMENT MODE SELECTION ................................................................................................. 2.21 AUXILIARY POWER OUTLET .......................................................................................................... 2.36 BATTERY DISCONNECT SWITCH .................................................................................................. 2.37 BOOM CYLINDER LOCK ................................................................................................................. 2.57 BOOM FLOAT ..................................................................................................................................... 2.8 BOOM LIFT ......................................................................................................................................... 2.8 BOOM LIFT LOCK ............................................................................................................................ 2.56 BRAKES .............................................................................................................................................. 2.9 BULB TEST SWITCH ....................................................................................................................... 2.35 CENTER JOINT LOCK PIN .............................................................................................................. 2.56 CHANGING THE ATTACHMENT ..................................................................................................... 2.58 QUICK ATTACHMENT OPTION ................................................................................................... 2.62 CIGAR LIGHTER .............................................................................................................................. 2.36 CLAMP ARMS .................................................................................................................................... 2.9 CLEANING A/C CONDENSER, AND COOLER PACKAGE ............................................................. 2.42 CLEANING INSTRUCTIONS FOR GLASS WINDOWS ................................................................... 2.53 CONTROLS - CAB .............................................................................................................................. 2.8 CUTTER SWITCH .................................................................................................................. 2.21, 2.30 DOME LIGHT .................................................................................................................................... 2.13 DRIVE CONTROL ............................................................................................................................... 2.9 DRIVE LIMITER ................................................................................................................................ 2.36 EMERGENCY EXIT/SKYLIGHT ........................................................................................................ 2.13 ENGINE ACCESS PANELS ............................................................................................................. 2.39 ENGINE AIR PRECLEANER ............................................................................................................ 2.40 ENGINE, HOT WATER SHUT OFF VALVE ..................................................................................... 2.19 ENGINE, RESTARTING AFTER RUNNING OUT OF FUEL ................................................................................................................................. 2.47 ENGINE, STARTING ........................................................................................................................ 2.47 ENGINE, STARTING, COLD WEATHER ......................................................................................... 2.48 ENGINE, STOPPING ........................................................................................................................ 2.50 FAN SWITCH .......................................................................................................................... 2.34, 2.35 FILTER - CAB FRESH AIR ............................................................................................................... 2.19 FILTER, RECIRCULATING AIR - A/C UNIT ..................................................................................... 2.18 FIRE DETECTION SYSTEM ............................................................................................................. 2.24 FIRE EXTINGUISHER ...................................................................................................................... 2.19 FOOT CONTROL, CENTER ............................................................................................................... 2.9 FOOT CONTROL, LEFT ..................................................................................................................... 2.9 FOOT CONTROL, RIGHT ................................................................................................................... 2.9 FUEL TANK ...................................................................................................................................... 2.38 FUSE AND RELAY PANEL CAB ............................................................................................................................................... 2.68 MAIN ............................................................................................................................................. 2.69

Tigercat M726E Mulcher

Controls and Operation

GAUGES HYDRAULIC OIL TEMPERATURE ............................................................................................... 2.33 GEAR SHIFT LEVER ........................................................................................................................ 2.12 HEAD TILT .......................................................................................................................................... 2.8 HORN SWITCH ................................................................................................................................ 2.33 HOT WATER SHUT OFF VALVE (ENGINE) .................................................................................... 2.19 HYDRAULIC HAND FILL PUMP ....................................................................................................... 2.40 HYDRAULIC OIL TANK .................................................................................................................... 2.39 ICONS, PICTOGRAM DESCRIPTIONS ..................................................................................... 2.5, 2.6 INSTRUMENT PANEL ................................................................................................... 2.22, 2.23, 2.27 JOYSTICK, LEFT ................................................................................................................................ 2.8 JOYSTICK, RIGHT .............................................................................................................................. 2.8 KEY SWITCH .................................................................................................................................... 2.35 LIGHT - DOME .................................................................................................................................. 2.13 LIGHTS SWITCH, WORKING, REAR ............................................................................................. 2.36 LIGHTS SWITCH, WORKING, FRONT ............................................................................................ 2.36 MACHINE PREPARATION ............................................................................................................... 2.49 SYSTEM TEST AND WARM-UP .................................................................................................. 2.49 MOVING INSTRUCTIONS ................................................................................................................ 2.71 OPERATING MACHINE .................................................................................................................... 2.44 PRE-START CHECKS .................................................................................................................. 2.44 PARKING BRAKE ............................................................................................................................. 2.11 PICTOGRAM DESCRIPTIONS ................................................................................................... 2.5, 2.6 PILOT SYSTEM SHUT OFF ............................................................................................................. 2.33 PRECLEANER, ENGINE AIR ........................................................................................................... 2.40 PRESSURIZED WATER SYSTEM ................................................................................................... 2.13 PRESSURIZING THE HYDRAULIC TANK ....................................................................................... 2.39 RADIO, AM/FM STEREO / CD PLAYER .......................................................................................... 2.13 SAW/MULCHER MULTIFUNCTION OPTION .................................................................................. 2.20 SEAT ....................................................................................................................................... 2.14, 2.16 SKYLIGHT/EMERGENCY EXIT ........................................................................................................ 2.13 SPEED CONTROL LEVER ............................................................................................................... 2.12 STARTING ENGINE ......................................................................................................................... 2.47 STEERING .......................................................................................................................................... 2.8 STEREO RADIO/CD PLAYER .......................................................................................................... 2.13 STOPPING ENGINE ......................................................................................................................... 2.50 THROTTLE CONTROL SWITCH ...................................................................................................... 2.10 TOWING INSTRUCTIONS ............................................................................................................... 2.54 TRANSPORTING INSTRUCTIONS .................................................................................................. 2.55 VEHICLE MOVING INSTRUCTIONS ...................................................................................... 2.70, 2.71

2.2

Tigercat M726E Mulcher

Controls and Operation

VENTING THE HYDRAULIC RESERVOIR ...................................................................................... 2.39 WAIT TO START .............................................................................................................................. 2.27 WARNING LIGHTS FIRE DETECTION SYSTEM ......................................................................................................... 2.24 LOW FUEL LEVEL ........................................................................................................................ 2.27 LOW HYDRAULIC OIL LEVEL ..................................................................................................... 2.27 STOP LIGHT ................................................................................................................................. 2.27 WAIT TO START ........................................................................................................................... 2.27 WATER SYSTEM, PRESSURIZED ................................................................................................. 2.13 WINDOWS ........................................................................................................................................ 2.51 CARE OF POLYCARBONATE WINDOWS .................................................................................. 2.51

CAUTIONS ........................................................................................................................2.52 CLEANING INSTRUCTIONS .............................................................................................2.52 CONCEALING HAIRLINE SCRATCHES ...........................................................................2.52 FIRE PRECAUTIONS ........................................................................................................2.52 GRAFFITI REMOVAL ........................................................................................................2.52 INSPECTION AND MAINTENANCE ..................................................................................2.51 RESISTANCE TO CHEMICALS .........................................................................................2.51 RESISTANCE TO WATER .................................................................................................2.51 CLEANING INSTRUCTIONS FOR GLASS WINDOWS ............................................................... 2.53

2.3

Tigercat M726E Mulcher

Controls and Operation

2.4

Tigercat M726E Mulcher

Controls and Operation

PICTOGRAM DESCRIPTIONS Diagrams in pictorial form are used to represent machine function operation. Some of the symbols are signs, characters, figures, or any components related to the operation of the machine. They are a simple universal language of symbols or pictograms that illustrate a function or component without the use of words. Pictograms are installed on or in close proximity to the switch or device used to activate or deactivate the machine function or they may be a sign used on a warning or indicator light of a function that is operating or advising of an alarm condition.

Examples of these pictograms are the turtle speed such as SLOW =

or FAST =

and the rabbit

that are often used to describe

.

The pictograms used on this machine are as follows: = Air Conditioner ON

= Boom UP

= Air Conditioner OFF

= Boom Tilt Back

= Air Source, Fresh Air

= Boom Tilt Forward

= Air Source, Recirculate = Brake Pedal = Auxiliary Power Outlet 12 V

= Control Lever Multiple Direction

= Power Outlet 24 V

= Control Lever One Direction

= Battery Disconnect

= Control Lever Two Direction = Boom DOWN = Accumulator arms OPEN = Boom UP = Accumulator arms CLOSE

= Boom Tilt Back

= Boom Tilt Forward

= Clamp arms CLOSE

= Boom DOWN

= Clamp arms OPEN

2.5

Tigercat M726E Mulcher

Controls and Operation

PICTOGRAM DESCRIPTIONS CONTINUED = Engine Start = Hydraulic Oil Level Low = Engine STOP

= Instrument Bulb Test

= Engine SPEED

= Engine WAIT TO START

= Interlock Reset ON

= Fan Auto Reversing/Cleaning = Interlock Reset OFF = Fan Full ON = Lights, Work

= Fuel - Diesel

= Fuel Level Low

= Lights, Engine Service

= Horn

= Mulching Head FLOAT

= Hydraulic Oil Temperature

= Mulching Head ON = Mulching Head Off

= Hydraulic Oil Temperature High = Mulching Head Debris Door Closed = Mulching Head Debris Door Open

= Hydraulic Oil Level Low

= Mulching Head Push Bar IN = Hydraulic Oil Level = Mulching Head Push Bar OUT = Hydraulic Oil Level High

2.6

Tigercat M726E Mulcher

Controls and Operation

= Speed FAST or Hi = Speed SLOW or LOW

= Steer Right

= Steer Left

= Switch ON

= Switch OFF

= Temperature

= Ventilation Blower Fan

= Windshield Washer

2.7

Tigercat M726E Mulcher

Controls and Operation

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.

CONTROLS - CAB B C

M726E-034

• •••• •• ••

A A

C

1

2

LEFT JOYSTICK

M726E-005

2.

1. STEERING JOYSTICK - LEFT 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. Steering "speed" can be controlled by the amount the joystick is moved to the right or left. A small movement of the joystick will turn the machine slowly and a large movement of the joystick will cause the machine to turn very rapidly.

Joystick Switches A. Horn - Push to sound warning horn B. Differential Lock, Front Push and hold to LOCK the FRONT differential and provide driving torque to BOTH front wheels.

C. Differential Lock, Rear Push and hold to LOCK the REAR differential and provide driving torque to BOTH rear wheels.

IMPORTANT! Use differential locks ONLY when additional traction is required. Do not continuously drive the machine with the differential locks on as this will result in damage to the axles.

2.8

• ••• ••

B

RIGHT JOYSTICK

BOOM JOYSTICK - RIGHT Boom Lift Move the joystick BACK to RAISE the boom.

Move the joystick FORWARD to LOWER 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. Joystick Switches (SAW HEAD) A. Accumulating Arms Open Push the switch to OPEN the accumulator arms.

B. Accumulating Arms Close Push the switch to CLOSE the accumulator arms.

C. Not Used Joystick Switches (MULCHER) A. Mulch Door Push the rocker switch to OPEN the mulch deflector door.

B. Mulch Door Push the switch to CLOSE the mulch deflector door.

C. Boom Float - 726M3611 and up.

Push the switch to engage the Boom Float.

Push the switch again to disengage the Boom Float. See also Boom Float Down Pressure switch later in this section for setting the boom float down pressure.

Tigercat M726E Mulcher 5 5A 5B

Controls and Operation NOTE: As a safety precaution before working on or around the machine. Stop the engine and release pilot system pressure by performing the following steps:

3

4

•

1. Close both doors. Turn key switch to RUN position. Do not start the engine. Press pilot reset switch.

Complete either steps 2A or 2B. 2A.Repeatedly apply brake foot pedal 50 times or more.

2B.Engage front and rear differential lock switches and HOLD ON for 30 seconds.

While waiting, repeatedly apply brake foot pedal at least 10 times.

3. 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.

•• • •

213-20

•

FOOT PEDALS

RIGHT FOOT CONTROL - DRIVE CONTROL 3. RIGHT FOOT CONTROL - DRIVE CONTROL

LEFT FOOT CONTROL

Press the RIGHT foot pedal to drive FORWARD.

5. LEFT FOOT CONTROL, (WITH SAW) CLAMP ARMS

Press the LEFT foot pedal to drive in REVERSE.

Press the LEFT foot pedal to OPEN the clamp arms.

NOTE: A backup horn will sound when travelling in reverse.

Press the RIGHT foot pedal to CLOSE the clamp arms.

5A. LEFT FOOT CONTROL, (WITH HYDRAULIC PUSH BAR OPTION) Press the LEFT foot pedal to tilt push bar BACK. Press the RIGHT foot pedal to tilt push bar FORWARD.

CENTER FOOT CONTROL - BRAKES 4. CENTER FOOT CONTROL - BRAKES

5B. LEFT FOOT CONTROL, (WITH BOOM ADAPTER AND HYDRAULIC LOCKING PINS) Press the RIGHT foot pedal to retract the pins and unlock the adapter.

Depress the foot pedal to apply the hydraulic brakes.

Press the LEFT foot pedal to extend the pins and lock the adapter.

2.9

Tigercat M726E Mulcher

6

M726E-030

Controls and Operation

••

THROTTLE CONTROL

6. THROTTLE CONTROL SWITCH For HIGH IDLE engine RPM press momentary rocker switch on the top increase speed.

to

CAUTION Under no circumstances allow the high idle engine RPM to vary from the recommended settings; particularly faster, as serious damage to the hydraulic components will result.

For LOW IDLE engine RPM press momentary rocker switch on the bottom to decrease speed.

NOTE: All harvesting operations should be performed at HIGH idle.

Low Idle 850 ± 25 RPM (No Load) High Idle 1900 RPM (No Load) NOTE: When setting pressures, increase Low Idle to 1000 RPM with throttle control.

The above values are with the hydraulic and engine oil at normal operating temperatures and no functions activated.

The engine RPM should be checked regularly with a calibrated hand tachometer.

2.10

Tigercat M726E Mulcher

Controls and Operation PARKING BRAKE ASSEMBLY

••

••

••

PROXIMITY SENSOR

8

337-19

PARKING BRAKE DISENGAGED POSITION

STATIONARY DISCS

SPRINGS DRIVE SHAFT

••

337-20

••

8

•

•• •

ROTATING DISCS

PARKING BRAKE ENGAGED POSITION

7. PARKING BRAKE - 726M3501 TO 726M3560 PULL up on handle to ENGAGE parking brake.

724E-007 724E-008 724E-016

PUSH down on the handle to DISENGAGE parking brake.

PARKING BRAKE

7B. PARKING BRAKE - 726M3561 AND UP The parking brake assembly is installed in the drive line between the transmission and the front axle. Five rotating discs are splined to the brake shaft and 6 stationary discs are held in place in the brake housing. The brake is spring applied and hydraulically released.

A parking brake switch on the instrument

On machines equipped with two hydraulic motors and a single speed transmission, this parking brake operates ONE of TWO disc brake calipers on the transmission. The second caliper is used only when setting up the machine hydraulic system. Machines equipped with a single hydraulic motor and two speed transmission have only ONE disc brake caliper.

NOTE: The parking brake must be in the ENGAGED position to START the engine, and in the DISENGAGED position to DRIVE the machine.

A proximity sensor is attached to the brake lever housing. This electrical circuit prevents the machine from being driven when the parking brake is engaged.

724E-004

PARKING BRAKE SWITCH

panel activates and deactivates the brake, also the brake will be activated when the cab door is open or if the engine is not running.

See also INSTRUMENT PANEL for more details regarding parking brake switch operation.

Keep the brake properly adjusted at all times.

The parking brake linkage should be serviced (adjusted and lubricate pivots) every 500 hours under normal operating conditions.

2.11

Tigercat M726E Mulcher

Controls and Operation 9. LEVER - GEAR SHIFT (MACHINES WITH SINGLE DRIVE MOTOR AND TWO SPEED TRANSMISSION ONLY) Shifting gears Gear shifting must not be done while the machine is in motion. The two 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.

9

••

8. SPEED CONTROL LEVER The speed control 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 speed control lever is mounted on the left hand arm rest, below and to the left of the steering joystick.

Push the lever forward to increase the maximum speed.

229-20

GEAR SHIFT LEVER

Shifting Procedure: • Bring the machine to a full stop on level ground.

• Reduce the engine speed to IDLE. • Depress foot break pedal to hold the machine stationary.

• Move the gearshift lever (push or pull) to engage the desired gear.

Pull the lever back to decrease the maximum speed of the machine. When the lever is pulled fully back the machine will be in CREEP MODE. Creep mode provides maximum available tractive force to the wheels at a reduced speed.

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

Refer also to SPEED CONTROL LEVER ADJUSTMENT in SECTION 3 of THIS MANUAL.

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 cause the collar and gear to mesh and allow for easy shifting.

2.12

Tigercat M726E Mulcher HOSE

Controls and Operation

WATER SHUT OFF VALVE (SHOWN CLOSED)

11b

11

11a

9

•

•

196-16A

•

••

PRESSURIZED WATER SYSTEM CONTROL VALVE (UNDER SEAT)

• 197-7x

10. VALVE - Pressurized Water System

11. SKYLIGHT/EMERGENCY EXIT

Turn the hand operated ball valve (shut off valve) under the seat to the ON position to draw water from the 40 Liters (10.5 gallon) 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, under the operator's seat.

Provides tree top visibility and serves as a third cab exit 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. These handles should only be HAND TIGHTENED, to allow them to be unscrewed in case of an emergency.

11A. AM/FM STEREO RADIO/CD PLAYER

AIR CHARGE VALVE

With two front mounted speakers.

Refer to component manufacturer's manual supplied with the machine for adjustment procedures.

•

11B. LIGHT - DOME

•

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

PRESSURE GAUGE

196-9A

•

PRESSURIZED WATER SYSTEM

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

Refer to PRESSURIZED WATER SYSTEM MAINTENANCE in SECTION 3 of THIS MANUAL

2.13

Tigercat M726E Mulcher

Controls and Operation RIDE ADJUSTMENT After adjusting height, the ride adjustment should be made by turning the RIDE ADJUSTMENT KNOB counter-clockwise until the seat cushion is level.

LUMBAR ADJUSTMENT

RIDE ADJUSTMENT KNOB

ADJUSTABLE LUMBAR To position lumbar mechanism vertically, move VERTICAL ADJUSTMENT KNOB up or down. For fore-and-aft displacement, rotate HORIZONTAL ADJUSTMENT KNOB.

•

BACK ANGLE ADJUSTMENT Rotate BACK ANGLE ADJUSTMENT KNOB to place seat at the desired angle.

•

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.

•• • • FORE/AFT SLIDE LEVER 724E-021

SEAT ADJUSTMENTS

4-WAY LUMBAR HORIZONTAL ADJUSTMENT BACK ANGLE ADJUSTMENT KNOB

••

HEIGHT ADJUSTMENT LEVER

•

12. SEAT - STANDARD

•

WARNING

••

The seat and shoulder restraint belts must be used at all times when operating this machine.

ADJUSTMENTS

332-6

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 3”.

To Raise 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 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).

2.14

RIGHT SIDE OF SEAT

ARMREST ADJUSTMENT

ARMREST ADJUSTMENT Each armrest has 2 adjustments to place it in the required position. Loosen adjustment locking wingbolts to reposition armrest height and fore/aft position.

Tigercat M726E Mulcher

Controls and Operation RIDES 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 knee-action 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.

BACK ANGLE ADJUSTMENT KNOB LUMBAR ADJUSTMENT

RIDE ADJUSTMENT KNOB

•

SEAT 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.

•

• ••

•

FORE/AFT SLIDE LEVER

M726E-033

SEAT ADJUSTMENTS

HEIGHT ADJUSTMENT LEVER

PROBLEMS AND CORRECTIVE ACTION RIDES 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.

2.15

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.

Tigercat M726E Mulcher

Controls and Operation RIDE ADJUSTMENT PROCEDURES After adjusting height, the ride adjustment should be made by pulling or pushing the air ride control valve knob.

SEAT ADJUSTMENTS

To Raise Push ride adjustment control to inflate air spring to obtain desired height.

LUMBAR HORIZONTAL ADJUSTMENT (NOT SHOWN)

BACK ANGLE ADJUSTMENT KNOB

•

720E-001

2-WAY ADJUSTABLE LUMBAR For fore-and-aft displacement, rotate HORIZONTAL ADJUSTMENT KNOB.

••

•• RIDE ADJUSTMENT KNOB

To Lower Pull ride adjustment control to deflate air spring to obtain desired height.

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

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

•• ••

HEIGHT ADJUSTMENT LEVER

LUMBAR HORIZONTAL ADJUSTMENT

FORE/AFT SLIDE LEVER

••

12.A OPERATOR’S SEAT - AIR RIDE

•

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

•• ARMREST ADJUSTMENT

ADJUSTMENTS HEIGHT ADJUSTMENT PROCEDURES 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 inbetween, provide a total height adjustment of 3”.

332-6

VIEW FROM RIGHT REAR OF SEAT

ARMREST ADJUSTMENT Each armrest has 2 adjustments to place it in the required position. Loosen adjustment locking wingbolts to reposition armrest height and fore/aft position.

To Raise 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 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).

2.16

Tigercat M726E Mulcher

Controls and Operation RIDES 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.

BACK ANGLE ADJUSTMENT KNOB LUMBAR ADJUSTMENT

AIR RIDE ADJUSTMENT KNOB

•

SEAT 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.

•

• ••

•

FORE/AFT SLIDE LEVER

M726E-033

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.

SEAT ADJUSTMENTS

HEIGHT ADJUSTMENT LEVER

PROBLEMS AND CORRECTIVE ACTION RIDES 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 height adjustment lever to raise the seat.

Refer to height adjustment.

2.17

Tigercat M726E Mulcher C

A

B

•

Controls and Operation

•

••

D

••

••

••

TOP L.H. REAR CORNER

14 E

14

••

• •

•• ••

AIR CONDITIONER HEATER CONTROLS 13. AIR CONDITIONER/HEATER

AIR VENTS

•

R.H. REAR PILLAR 726E-035 726E-036 726E-038

14. AIR VENTS

7501-8A

The Air Conditioner/Heater package has six air outlets in the cab.

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

15

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

•

B. FAN SPEED - OFF/LOW/MED/HIGH This is a rotary, four position switch for the fan speed.

C. AIR SOURCE - 2 POSITION This is a rotary, two position switch to select either, outside fresh air or to recirculate inside air. To maximize use of A/C place the control in the recirculate mode.

208-19

AIR FILTER

15 FILTER, RECIRCULATING AIR - A/C UNIT When the AIR SOURCE switch is in the RECIRC AIR position, air in the cab is drawn into the A/C- HEATER unit via this filter and recirculated. The filter is located at the base of the A/C unit, below the right arm rest of the operator’s seat. It should be cleaned or replaced every 125 hours. Remove the two thumb screws in the filter box cover to access the filter.

D. HEAT - VARIABLE This is a variable, rotary dial to adjust the amount of heated air for the cab. Make sure this control is off, when using the air conditioning.

E. AIR CONDITIONING - VARIABLE This is a variable, rotary dial to adjust the temperature of cooled air for the cab.

NOTE: To maximize the efficiency of the air conditioning, the heat control dial on the control panel must be rotated to the "OFF" position. Also refer to HOT WATER SHUT OF VALVE, in THIS SECTION.

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 5 minutes every 2 weeks. This will circulate oil to all components of the A/C system.

2.18

Tigercat M726E Mulcher

Controls and Operation

16

• CHECK CHARGE GAUGE DAILY

FRESH AIR FILTER

726E-037

16. FILTER - CAB FRESH AIR When the AIR SOURCE control knob (C) on the A/C Heater 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. It should be checked every 125 hours. This is done by removing 6 bolts and removing the air inlet cover. Next remove 2 bolts and remove the filter retainer. This will allow access to the filter.

The RECIRCULATING AIR FILTER and the CAB FRESH AIR FILTER may require cleaning more frequently under extreme operating conditions.

ENGINE HOSE TO A/C HEATER UNIT

••

•

Maintain a CHARGED fire extinguisher on the machine at all times and KNOW HOW TO USE IT.

•

17 SHUT-OFF VALVE

726E-003

18. FIRE EXTINGUISHER 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.

Refer to the manufacture's Use and Information manual for proper usage, additional information and recommended inspection and maintenance intervals.

HOT WATER SHUT OFF VALVE

17. HOT WATER SHUT OFF VALVE (ENGINE) To maximize the efficiency of the air conditioning, the HEAT control knob (D) on the A/C Heater control panel must be rotated to the "OFF" position. During times when cab heating is not required the HOT WATER SHUT OFF VALVE, on the heater hose from the engine, should also be closed to prevent hot water from seeping through the A/C unit, thereby reducing the effect of the cooling system.

2.19

Tigercat M726E Mulcher

726D-050

Controls and Operation

DISC SAW FELLING HEAD OPTION

726M-007

MULCHING HEAD OPTION

This OPTION includes the following features:

19. SAW/MULCHER - MULTIFUNCTION OPTION The MULTIFUNCTION OPTION provides for quick attachment/detachment of either a Tigercat Disc Saw Felling Head or a Fecon BH250 Mulching Head.

See CHANGING THE ATTACHMENT in this section.

726M-021

•

WARNING Personal injury and serious machine damage may result if a saw is run on this machine with the mode selector switch in the mulcher position.

If the saw is run in the mulcher mode the saw blade may over-speed and may run at unsafe pressures. This may result in very short bearing, blade, saw motor and tooth life. Due to the increased speed of the saw blade, debris and loose machine components may be sent out of the saw housing at very high speeds.

2.20

QUICK ATTACH/DETACH COUPLERS

Quick Attachment Hydraulic Couplers for both attachments.

Tigercat M726E Mulcher

Controls and Operation

20. ATTACHMENT MODE SELECTION

WARNING

WHEN RUNNING A SAW:

NEVER operate the disc saw felling head with the mode selector switch in the Mulcher Mode! Personal injury and serious machine damage may result.

WHEN RUNNING A MULCHER:

Ready to run a saw: MODE SELECTOR SWITCH

••

MODE SELECTOR SWITCH

•• 724E-006

•• •

LOCKED IN SAW MODE

UNLOCKED IN MULCHER MODE

M726E-004

MODE SELECTOR SWITCH SHOWN LOCKED IN SAW MODE

After the disc saw felling head has been attached, ensure that the mode selector switch is locked in the “Saw” position. The mode selector switch is located in the cab fuse panel compartment. Open the fuse panel compartment door on to access the switch. When the key is turned to the run position both LED's turn on as a bulb test to ensure that they do work.

M726E-004 724E-006

MODE SELECTOR SWITCH SHOWN IN MULCHER MODE

Ensure that the attachment mode selector switch is in the mulcher position. The attachment mode selector switch is located in the cab fuse panel compartment. When the pilot reset switched is pressed and the pilot circuit is active, the “Mulcher Mode” LED on the instrument panel (below the “Cutter” switch will illuminate. This indicates that the attachment mode selector switch is in “Mulcher Mode”.

There is an ID connector in the attachment that indicates to the controller which attachment is currently on the machine. If the mode selector switch is in the Saw Mode and the controller recognizes that a saw head is attached to the machine the saw mode will turn on indicating that the cutter pump is ready to turn on.

When the attachment mode selector switch is in the “Mulcher” position, the attachment pump pressure will be limited to 331 Bar (4800 psi).

When the “Cutter” switch is turned on, the attachment pump will stroke to full displacement and the mulcher rotor will ramp up to 1750 to 1800 rpm.

When attachment mode selector switch is in the “Saw” position, the attachment pump pressure will be limited to 276 Bar (4000 psi). When the “cutter” switch is turned on, the attachment pump will stroke to its required displacement and the saw blade speed will ramp up to 1150 rpm.

In the “Mulcher Mode” only return flow from the attachment flows through the cooler.

In the “Saw Mode” all return flow from the attachment, fan & steer circuits flow through the oil cooler.

2.21

Tigercat M726E Mulcher INSTRUMENT PANEL 4

5

Controls and Operation

3

2

••

•

••

1

••

••

6

• ••

8

•

7A

7

••

9

•• 10

•

16

••

••

• •

22 17

••

18

••

•

11

••

13

14

M726E-031

20

••

•

12

19

••

••

•

15

1. Fire Detected Indicator Light & Horn

12. Bulb Test Switch

2. Low Hydraulic Level - Red Light & Horn

13. Ignition Key Switch

3. Low Fuel - Yellow Light

14. Parking Brake Switch

4. Stop Engine Light - Red Light & Horn

15. Optional Equipment

5. Wait To Start - Yellow Light

16. Drive Limiter Switch

6. PowerView Display Module

17. Front Lights Switch - Optional

7. Cutter Switch

18. Rear Lights Switch - Optional

7A. Cutter Indicator (if equipped)

19. Fuel Heater Switch - Optional

8. Mulcher/Saw Mode Indicator Lights

20. Lighter (24 VOLT)

9. Throttle Speed Switch

21. Auxillary Power (12 VOLT)

10. Pilot Reset Switch

22. Boom Float Switch

11 Fan Switch

2.22

21

Tigercat M726E Mulcher 5

4

Controls and Operation

3

2

•

7A

•

1

•

•

6

• •

•

8

•• •• • • •• ••

7

•

9 10

• ••

16 11

•• ••

12

•• 14

M726E-031

INSTRUMENT PANEL

DO NOT OPERATE THE AM/FM STEREO RADIO CD PLAYER OR ANY PERSONAL SOUND SYSTEM WITH THE VOLUME CONTROL EXCEEDING THE VOLUME OF THE AUDIO WARNING ALARMS OF THIS MACHINE!

Using a stereo headset or earphones with a portable sound device and operating the sound level at high volume can result in failure to hear audio warning alarms.

•

Failure to hear audio warning alarms and act upon the warning can result in machine failure or serious fire damage.

•

20

• ••

21

15

DO NOT WEAR DARK SHADED GLASSES WHEN OPERATING THIS MACHINE! •

Wearing dark shaded sun glasses can reduce the ability to see warning lights.

•

The dark shade of sun glasses is intended to reduce glare and decrease ambient light, which will lower the intensity of warning lights making them less visible.

•

Failure to observe warning lights and act upon the warning can result in machine failure or serious fire damage.

CAUTION

•

19

•

CAUTION

WARNING LIGHTS AND AUDIO ALARMS This machine is equipped with five warning lights and two audio warning buzzers. The warning lights , items 1 thru 5 are located on the top row of the instrument panel. The audio warning buzzers are located in the compartment below the instrument panel.

Entertainment sound systems operated at high sound levels can reduce the ability to hear audio warning alarms.

17 18

••

13

•

22

IMPORTANT: It is the responsibility of the operator to take heed of these alarms and take the appropriate action whenever a warning alarm is activated.

The following information provides details of each of the warning alarm systems and outlines what action is required when the alarm system is activated.

Read and study this information as well as the safety section 1 of this manual. The information provided will prepare you the operator, with the knowledge required of what to do should an alarm be activated.

2.23

Tigercat M726E Mulcher FIRE DETECTION WARNING LIGHT

Controls and Operation

726E-013

726E-015

2

• •• • •• ••

•• • THERMOSTAT

INSTRUMENT PANEL

••

HYDRAULIC PUMP COMP'T

1. FIRE DETECTION SYSTEM

1

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

M726E-031

BULB TEST SWITCH

BULB TEST SWITCH

In no way does the installation of this fire detection system reduce the need to adhere to the guidelines given in the FIRE PREVENTION section of this manual.

This momentary switch (1) is used to perform bulb and audio buzzer test. Hold this switch in the ON position to test ALL warning light bulbs (2) on the instrument panel as well as the Fire Detection System Warning Light and Audio (buzzer).

Replace burnt out lights and defective buzzers immediately to ensure that all warning devises are in working order at all times.

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.

SYSTEM OPERATION

FIRE DETECTION SYSTEM COMPONENTS The Fire Detection System consists of the following main components:

There are 3 thermostats mounted in the engine and hydraulic area that are wired to the warning light and buzzer. The thermostats are automatic heat detection devices and are set to “close” at 177°C (350°F). When a thermostat closes it sends an electrical signal to the warning light and buzzer indicating that a high temperature has been detected. The stop engine light and horn will also be activated.

FIRE DETECTION WARNING LIGHT

••

IN CASE OF FIRE DETECTION ALARM: 1. Stop machine operation, park machine in a safe location and lower the load to the ground.

2. Shut down the engine.

WARNING LIGHT AND BUZZER - In cab, warning light is on the instrument panel. The buzzer (not shown) is in the compartment below the instrument panel.

3. Remove the portable fire extinguisher from it's storage location.

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

5. Inspect the machine for 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 of this manual.

2.24

Tigercat M726E Mulcher

Controls and Operation

FIRE DETECTION SYSTEM COMPONENTS CONTINUED

SYSTEM TEST Daily: •

THERMOSTAT

••

Weekly:

726E-013

726E-014

Use the bulb test switch to activate the Warning Light and Buzzer.

HYDRAULIC PUMP COMPARTMENT

HEAT THERMOSTAT - In hydraulic pump compartment

••

Inspect all parts for damage, rust, corrosion or dirt. Replace any damaged parts immediately.

•

All components are in place and unobstructed.

•

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

•

Ensure thermostats are clean.

Every Month: • Turn ignition switch on and perform the bulb test to confirm warning system light and buzzer operation. Next, use a heat source (heat gun) to apply heat to each of the thermostats (for approx 30-40 seconds only) to confirm warning system light and buzzer operate.

WIRE CONNECTIONS

••

•

• THERMOSTAT

726E-016

ENGINE COMPARTMENT - L.H. SIDE

KEEP TIP OF HEAT GUN BACK 76.2mm - 127mm (3"-5")

HEAT THERMOSTAT - L.H. side rear in engine compartment.

••

HEAT GUN

WIRE CONNECTIONS THERMOSTAT

••

APPLY HEAT TO THIS AREA ONLY. THERMOSTAT

• 726E-017

ENGINE COMPARTMENT - FRONT

WHEN TEST IS COMPLETE WIPE THERMOSTAT OFF WITH A COOL WET CLOTH.

HEAT THERMOSTAT - Over front of engine.

The system WIRE HARNESS is braided in black with a red tracer for easy identification.

726E-018

HEAT TESTING THERMOSTAT USING A HEAT GUN

5 AMP FUSE

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

• 724E-006

726E-005

FUSE PANEL - IN CAB

ELECTRICAL POWER SUPPLY Power is supplied to the system by a 5 Amp fuse located in the fuse and relay panel.

2.25

Tigercat M726E Mulcher

Controls and Operation

726E-013

FIRE DETECTION WARNING LIGHT

726E-019

FIRE EXTINGUISHER

•• THERMOSTAT

726E-017

ENGINE COMPARTMENT - FRONT 726E-039

••

THERMOSTAT

•

THERMOSTAT 726E-016

726E-015

ENGINE COMPARTMENT - L.H. SIDE

HYDRAULIC COMPARTMENT - CENTER

FIRE DETECTION SYSTEM AND FIRE EXTINGUISHER LOCATION AVOIDING DAMAGE AND FALSE SIGNALS DURING MACHINE SERVICE: Pay attention to the location of the components of the fire detection system. Take care not to damage 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.

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

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

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

FIRE PREVENTION Refer to section 1 of this manual for FIRE PREVENTION information/techniques.

2.26

Tigercat M726E Mulcher 5

4

Controls and Operation

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M726E-031

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INSTRUMENT PANEL CONT'D 4. STOP LIGHT - RED LIGHT AND HORN

2. LOW HYDRAULIC OIL LEVEL - RED LIGHT AND HORN This light will come ON and a horn will SOUND when the hydraulic oil level falls approximately 10 gal. US (38L) below the FULL mark.

The light will come ON and horn will SOUND when engine oil pressure falls below 10psi or when any other stop engine requirement is issued by the engine ECM. NOTE: Stop the engine if oil pressure falls below 10psi. Investigate the cause and correct the fault before attempting to restart the engine. See OPERATING MACHINE in this SECTION for more information.

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 tank to FULL mark on the sight gauge. Restart engine and inspect for leaks.

5. WAIT TO START - YELLOW LIGHT

3. LOW FUEL LEVEL - YELLOW LIGHT This light is used as a Low Fuel Level warning.

The indicator light will come ON when the FUEL level drops below 15 gal. US (56.8L).

2.27

This YELLOW warning light will be ON during the "key RUN" engine pre-heat time. Heating elements (grid heater elements) located in the engine air intake manifold are turned ON during cold weather conditions to heat the intake air when starting the engine. The engine must not be started until this light turns OFF automatically.

Tigercat M726E Mulcher 5

4

Controls and Operation

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•• 14

M726E-031

6. DISPLAY MODULE The PowerView Display Module is the operator interface with the electronic engine controls. The PowerView enables the operator to view various engine parameters and service codes. The display can show either a single parameter or a quadrant display showing 4 parameters simultaneously.

Diagnostic capabilities include fault codes with text translation for the most common fault conditions.

The PowerView has four buttons used to navigate the display and various menus.

Some of the functions displayed by the PowerView Display Module are as follows:

17 18 19

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Set Units for display (English or Metric), Engine Configuration Parameters and more. note: The module displays the current hydraulic oil temperature (as Aux Temperature) registered in the hydraulic reservoir. If the temperature goes beyond 180°F check the following: • Plugged oil cooler • Malfunction in a hydraulic circuit • High loads on the hydraulic system • Low hydraulic oil level Operation above 180°F will shorten hydraulic component life.

Engine RPM Engine Hours, Machine Hours System Voltage, % Engine Load at current RPM, Wait To Start, Water In Fuel Warning, Coolant Temperature, Oil Pressure, Fuel Economy, Throttle Position, Engine Manifold Air Temperature, Current Fuel Consumption, Hydraulic Oil Temperature Active and Stored Engine Service Codes

If temperature reaches 205°F alarm will sound, do not continue to operate the machine.

NOTE: Refer to manufactures Operations Manual (supplied with the machine) for detailed information.

2.28

Tigercat M726E Mulcher

Controls and Operation INTERMITTENT ELECTRICAL SIGNAL Machines 726M3560 and up: If during operation the controller loses connection with the attachment ID connector (electrical connection), the electronic controller will display a blink code (on the electronic controller under the control panel only) but the cutter pump will continue to run.

If the controller still does not have a connection with the ID connector when the cutter switch is turned off, both LED's on the instrument panel will begin to blink indicating that there is an electrical problem. The cutter pump will not turn on until the electrical problem is resolved and the controller once again recognizes the attachment ID.

•• 7

M726E-031

CUTTER SWITCH

Check hose connections daily to ensure they are tight. Check more often in extreme (high vibration) conditions.

MODE SELECTOR SWITCH

8A

• ••

LOCKED IN SAW MODE M726E-004

724E-006

MODE SELECTOR SWITCH SHOWN LOCKED IN SAW MODE

7. CUTTER SWITCH - (SAW/MULCHER) CUTTER CONTROL The cutter is operated by an electronically controlled hydraulic pump, which is controlled by an electronic controller.

Each attachment on a multifunction machine has an attachment ID connector in the head that indicates to the controller which attachment is currently on the machine. The position of the mode selector switch (8A) must correspond to the attachment currently on the machine or the electronic controller will not allow the pump to turn on. If the mode selector switch position corresponds to the attachment on the machine, the controller will illuminate the corresponding LED on the instrument panel, indicating that the cutter pump is ready to turn on. If at any time during operation the controller loses connection with the attachment ID connector, the cutter pump will turn off and both mode indicator LED’s will start flashing.

NOTE: Hydraulic and electrical hose connections for the attachment must be checked daily to ensure that they are tight. In extreme conditions the connections must be checked more often. See Changing the Attachment and Hose Connections later in this section for details.

2.29

When running a saw: Each saw installed on a multifunction machine is also equipped with a saw blade speed sensor in addition to the attachment ID connector.

When the correct mode is selected and the cutter switch (7) is turned on, the controller will stroke the pump to the correct flow and pressure required to run a saw. During operation of the saw, the controller will turn the cutter pump off and both mode indicator LED’s will start flashing if the: •

saw blade exceeds its maximum allowable speed • speed sensor malfunctions • saw blade has been stalled (or pinned) for an extended period of time • speed sensor or attachment ID connector become disconnected When both LED’s on the instrument panel are flashing to indicate that the controller has turned the cutter pump off, the controller will also display a blink code. This blink code is displayed on the red LED on the controller.

When the cutter switch is turned off the active cutter fault will be cleared and the mode LED’s will stop blinking, but this fault will continue to be displayed on the red LED on the controller. To clear the faults from the memory of the controller the master disconnect must be turned off and turned back on. Refer to the blink code translation chart in section three of this manual.

Tigercat M726E Mulcher

Controls and Operation 5

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724E-006

11

LOCKED IN SAW MODE

••

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12 M726E-004

• 14

7. CUTTER SWITCH - CONT'D Use this switch to turn the saw/mulcher ON or OFF. This switch sends a signal to the controller, the controller then sends a signal to the cutter pump to turn it on. The light in switch turns on when saw/mulcher is operating.

Place throttle in HIGH IDLE (min 1500 rpm) before turning saw/mulcher ON. NOTE: When starting the cutter and the hydraulic oil is not up to operating temperature, the cutter can be turned on at 1500 rpm and as the rotor begins to turn the engine speed can be reduced to idle to allow the oil to warm up.

NOTE: If the engine is turned off with the switch in the ON position, the saw/mulcher will not start up when the engine is restarted.

The switch must be turned OFF and then back ON for the saw/mulcher to start.

Always decrease the engine speed to idle for several minutes to allow the cutter to slow down before turning the cutter off.

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MODE SELECTOR SWITCH SHOWN LOCKED IN SAW MODE

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MODE SELECTOR SWITCH

10

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21

M726E-031

724E-028

7A. CUTTER INDICATOR Note: Installed on machines 726M3561 and up.

SAW OPERATION: Consider the four gauge increments as 1/4, 1/2, 3/4 and 1. During cutting operations the indicator value will rise to 1 as the blade slows down due to cutting, and fall as the blade speeds up. A 3/4 value or higher indicates that the blade has not attained full speed from the previous cut or has jammed.

Further cutting should be delayed until the indicator value falls below the 3/4 increment to prevent stalling the saw blade during the next cut. Between 1/4 and 3/4 the saw blade is at optimum cutting speed.

MULCHER OPERATION: Optimal mulching performance will be achieved by keeping the cutter indicator at 7/8 of full scale> 2.30

Tigercat M726E Mulcher 5

4

Controls and Operation

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M726E-031

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8. SAW/MULCHER MODE LIGHTS If the mulcher mode light is ON and the saw mode green light is FLASHING, the mode selector switch is set for mulcher mode.

Reset the switch to the saw mode.

M726E-030

MODE INDICATOR LIGHTS

The machine is equipped with a mode selector switch (8A) located in the cab fuse panel compartment. Two lights on the instrument panel indicate the position the selector switch is set to. When the key is turned on both lights turn on momentarily as a bulb test.

When the saw/mulcher mode selector switch (8A) is set to the mulcher mode the mulcher mode green light will be ON. When the saw/ mulcher mode selector switch (8A) is set to the saw mode the saw mode green light will be ON. MODE LIGHTS FLASHING Machine equipped with a saw head: The mode selector switch (8A) must be set to the saw mode and the saw mode green light will be ON only.

2.31

Machine equipped with a mulcher: The mode selector switch (8A) must be set to the mulcher mode and the mulcher mode green light will be ON only.

If the saw mode light is ON and the mulcher mode green light is FLASHING, the mode selector switch is set for saw mode. Reset the switch to the mulcher mode.

NOTE: If at any time both lights are flashing the cutter pump will turn off or will not turn on due to a cutter circuit error. The red LED on the electronic controller will flash a blink code.

See the blink code chart in section three.

NOTE. MACHINES 726M3557 and up.

When the cutter is turned on with the engine speed below 1500 rpm or the hydraulic oil temperature below 38 °C (100 °F) the cutter pump will ramp on very slowly to avoid lugging the engine excessively or to avoid sending cold hydraulic oil to the mulching head motors at high pressure.

Tigercat M726E Mulcher

Controls and Operation Mulcher UNLOCK AND PRESS AT TOP FOR MULCHER MODE

PRESS AT BOTTOM AND LOCK FOR SAW MODE

Saw

•• MODE SELECTOR SWITCH

M726E-034

CAB FUSE AND RELAY PANEL

8A. MODE SELECTOR SWITCH (SAW/MULCHER)

MODE SELECTOR SWITCH

8A

The switch is located in cab fuse panel compartment.

•• ••

MODE SELECTOR SWITCH

8A

• ••

724E-006

UNLOCKED IN MULCHER MODE

LOCKED IN SAW MODE

M726E-004

724E-006

M726E-004

MODE SELECTOR SWITCH SHOWN IN MULCHER MODE

MODE SELECTOR SWITCH SHOWN LOCKED IN SAW MODE

To select MULCHER MODE slide the locking tab up to unlock the switch and push the switch UP to the mulcher mode position.

To select SAW MODE press the switch DOWN and place it in the locked position.

2.32

Tigercat M726E Mulcher 5

4

Controls and Operation

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M726E-031

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9. THROTTLE SPEED SWITCH

10A

This is a momentary switch used to increase/ decrease engine speed. Press top of switch to decrease engine speed. Press bottom of switch to increase engine speed.

•

•

ACTUATOR

The engine speeds are as follows: Low Idle 850 ± 25 RPM (No Load) High Idle 1920 ± 25 RPM (No Load) 726M-037

The above values are taken with the hydraulic and engine oil at normal operating temperature and without any functions operating.

PILOT SYSTEM SHUT OFF

10A. PILOT SYSTEM SHUT OFF Both doors are equipped with interlock switches to prevent the machine from being operated while the doors are open (pilot system shut off).

10. PILOT RESET This function prevents accidental or improper use of the controls from anywhere but the operator's seat.

To operate: Close both doors and press the pilot reset switch.

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

With the engine running and both doors closed, push this switch to REACTIVATE the pilot system after it has been deactivated by opening of the cab door, or by turning the key switch to the OFF position.

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.

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

2.33

Tigercat M726E Mulcher 5

4

Controls and Operation

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M726E-031

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In low temperature operating conditions fan speed is reduced, as less cooling is required.

11. FAN - SWITCH This is a three position switch, labelled CLEAN/AUTO/FULL ON*. This switch along with an electronic fan control module, controls the operation of the hydraulic cross-flow fan.

When the switch is in the AUTO position, the fan will operate at low speed when charge air, engine coolant or hydraulic oil temperatures are low, turning ON the A/C will cause the fan control to immediately turn the cooling fan On. This is to ensure that sufficient air flow is available for the cab A/C even while the machine is still warming up.

AUTO POSITION - AUTO 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 which includes AUTO REVERSE every 10 minutes for 15 seconds .

FULL ON (OVERRIDE) POSITION - When the switch is in the FULL ON (OVERRIDE) position, the fan control system is overridden and the fan will run at FULL speed for cooling regardless of charge air, coolant or oil temperatures. Normally the fan control switch is placed in the AUTO position for optimal cooling. The FULL ON (OVERRIDE) position is intended for use in the event of a temporary failure of the fan control.

It will start, speed up, slow down or stop all based on the temperature of the charge air, engine coolant and/or the temperature of the hydraulic oil. The electronic fan control module automatically adjusts fan speed to the minimum required level to maintain optimal operating conditions, provide auto reversing and default to fan at full speed if an error in the controller exists.

NOTE: AUTO REVERSE/CLEANING does not work with fan "FULL ON".

Automatic control of fan speed to match operating conditions can lower fuel consumption and reduce operating costs. In high temperature operating conditions the fan speed is increased to improve cooling ability and efficient operation of the charge air cooler, oil cooler, radiator and air conditioning systems.

CLEAN POSITION - This is a momentary position of the switch. When the switch is depressed the direction of rotation is reversed for 15 seconds and automatically returns to forward rotation. Reverse rotation is used to clean the charge air cooler, radiator, oil cooler, A/C condenser and air intake door screens.

2.34

Tigercat M726E Mulcher 5

4

Controls and Operation

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13. KEY SWITCH This is a three-position switch labeled OFF/ By "reversing" the flow of the fan, air flow is RUN/START. propelled in the opposite direction, thereby OFF Position - All electrical power fed through forcing dust and debris off of the radiator. the key switch is turned “OFF” The electronic fan control will also turn the RUN Position - Connects the battery to all A/C system OFF for as long as the fan is in functions. Used for normal machine the CLEAN mode. As previously mentioned, operation. rotation is reversed for 15 seconds and START Position - Used to energize the starter automatically returns to forward rotation. motor to start the engine. NOTE: The parking It is also important to manually clean debris brake must be in the ON position to start the from the machine on a regular basis to engine. maintain low machine operating 14.

PARKING BRAKE SWITCH AND LIGHT temperatures. Refer to CLEANING A/C (726M3561 AND UP) CONDENSER, CHARGE AIR COOLER, OIL The parking brake is spring applied and COOLER AND RADIATOR in THIS hydraulically released. The parking brake is SECTION. engaged (light ON) when the switch is 12. BULB TEST SWITCH activated to turn the brake ON, or the ignition This momentary switch is used to perform key is turned OFF, or the cab door is opened bulb test. Hold this switch in the ON position when the engine is running. to test ALL warning light bulbs on the To disengage the parking brake, close the instrument panel and warning horns. Replace cab door, start the engine and depress the burnt out light bulbs or horns immediately to pilot reset and the parking brake switch. The ensure that all warning lights and horns are in light will turn OFF and the brake will working order at all times. disengage.

The bulb test switch also tests the fire NOTE: Stop machine travel before opening detection wire harness. If there is a problem the cab door. Whenever the cab door is with the harness the fire detected light and opened the parking brake will engage. horn will not turn on. The switch does not test 15. AUXILIARY SWITCH LOCATION the temperature sensors.

This switch location is used for various optional functions.

2.35

Tigercat M726E Mulcher 5

4

Controls and Operation

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M726E-031

16. DRIVE LIMITER

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19. FUEL HEATER (OPTIONAL)

This is a two position switch. This switch has no effect when the saw/cutter switch is in the OFF position.

Placing this switch in the ON position (when the saw/cutter switch is also in the ON position) activates the drive limiting system. This system detects drops in engine rpm and automatically limits power to machine drive function(s) in order to prevent engine stalling and divert maximum engine horsepower to the mulching head.

This function is intended to aid the operator in maintaining correct engine rpm levels during mulching operations for maximum productivity.

It is important not to stop or stall the engine with the mulching head cutter rotating. Serious component damage may result. Always stop the cutter with the engine at idle.

17. LIGHTS, FRONT (OPTIONAL) This switch will turn on the lights that illuminate the area in front of the cab.

18. LIGHTS, REAR (OPTIONAL) This switch will turn on the lights that illuminate the area behind the cab.

2.36

This switch will turn on the fuel heater.

20. LIGHTER Cigar/Cigarette lighter.

21. AUXILIARY POWER A 12 volt outlet with 20 amp capacity for portable devices such as phones.

22. BOOM FLOAT DOWN PRESSURE This is a rotary dial that is used to increase/ decrease the boom float down pressure when the boom float mode has been selected. Turn the dial clockwise to increase down pressure or counterclockwise to decrease down pressure.

An Increased down pressure setting allows the head to push down on the ground with greater force than when the dial is set to minimum down pressure.

Boom Float Down Pressure is required to adjust the float position of the attachment due to variations in attachment weight/size, soil and ground conditions as well as desired mulching depth and surface finish.

Tigercat M726E Mulcher

Controls and Operation

IMPORTANT

24 VOLT ELECTRICAL SYSTEM 23

•• 724E-017

724E-006

726E-005

FUSE PANEL - IN CAB

23. FUSE PANEL 24863A

The fuses, diodes and relays are located beneath a panel below the instrument panel.

Press the latch button to open the door to access the fuses, diodes and relays. See FUSE AND RELAY PANEL - CAB in THIS SECTION for more detail.

BATTERY DISCONNECT SWITCH BATTERY DISCONNECT - SWITCH This manually operated switch located in the cab mounted to the side of the seat pedestal, completely disconnects all electrical circuits on the machine from the battery.

WARNING Before leaving the machine unattended, always lower the felling head to the ground, engage the parking brake and turn off battery disconnect.

Turn the battery disconnect switch OFF if the vehicle is to be parked for an extended period of time (Example - overnight).

NOTE: Wait for 30 seconds after turning key switch off before turning the battery disconnect switch off. The engine ECM requires time after the engine is turned off to record the engine data and log the information for the current operating session. If the battery disconnect is turned off too soon, the data will not be recorded and an error message will be displayed when the battery power is turned back on and the key switch is turned on.

IMPORTANT: Only use the battery disconnect switch to shut off a running machine in an emergency. A fault code will be logged by the ECM on the engine for improper shut down and power down.

2.37

Tigercat M726E Mulcher REAR CHASSIS

Controls and Operation 2

1. HEAT EXCHANGER COMPARTMENT

DIPSTICK

To open the access panels and doors, turn the knob counterclockwise and swing the upper door open. Lift the lower panel up and out. Reverse this procedure to close doors.

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•

CAUTION The lower access panels are NOT HINGED or permanently attached to the machine, but are held in place by the UPPER DOORS. Therefore they can fall during the process of removing them 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 these LOWER PANELS as hand grips, when servicing the machine.

R.H. SIDE ACCESS PANELS

HAND KNOB

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R.H. ENGINE ACCESS PANELS

726-002

HAND KNOB

L.H. SIDE ACCESS PANELS

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726-001

L.H. ENGINE ACCESS PANELS

2.38

FILTER SCREEN

••

718E-037

FUEL TANK DIPSTICK/FILTER SCREEN 2. FUEL TANK Located at the right rear of the machine, the fuel tank has a capacity of 125 gallons (473 liters) and incorporates a dipstick and filler screen under the filler cap. The dipstick slides through a hole in the side of the filler screen. DO NOT drop the dipstick into the filler tube or it will punch a hole in the bottom of the filler screen. The filler screen should be removed and cleaned every 125 hours (reach in and lift it out). Replace the screen if it is damaged.

Tigercat M726E Mulcher

Controls and Operation

CAUTION MACHINES 726M3501 TO 726M3600 ARE EQUIPPED WITH A PRESSURIZED HYDRAULIC TANK. Before servicing any hydraulic components, vent hydraulic tank. Open drain valve, loosen lock nut on regulator adjustment and turn regulator adjustment out (counter clockwise) to release all air pressure.

150 PSI RELIEF VALVE AIR TOOL SUPPLY CONNECTOR

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DRAIN VALVE

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HYDRAULIC OIL TANK AIR PRESSURE REGULATOR VENTING THE HYDRAULIC TANK 726M-O12

3

On machines 726M3501 to 726M3600, open drain valve, loosen lock nut on regulator adjustment and turn regulator adjustment out (counter clockwise) to release all air pressure.

• SIGHT GAUGE HYD. OIL LEVEL

••

PRESSURIZING THE HYDRAULIC TANK On machines 726M3501 to 726M3600, when the air tank is drained and the hydraulic tank is vented, the pressure for the hydraulic tank must be reset. Once the compressor has refilled the air tank, turn the adjustment lever on the air regulator to set the air pressure in the hydraulic tank at 0.5 Bar (8 psi) maximum, DO NOT EXCEED 0.5 Bar (8 psi). Tighten the lock nut on the lever.

SENDING UNIT LOW HYDRAULIC OIL

•

M726E-002

SET REGULATOR ADJUSTMENT TO OBTAIN 8 PSI MAX READING ON GAUGE

AIR PRESSURE REGULATOR AND GAUGE

HYDRAULIC OIL TANK

3. HYDRAULIC OIL TANK

NOTE: On machines 726M3501 to 726M3600, the air breather on the top of the hydraulic tank has a check/relief valve that is set at 0.7 Bar (10 psi).

Located at the left rear of the machine, the hydraulic tank has a capacity of 58 gallons (220 liters).

A sight gauge, accessible through the rear door indicates the HIGH and LOW levels of the hydraulic oil. A low level sending unit is installed in the tank that signals a “low hydraulic oil” light in the cab to come ON when the oil level is low. Always keep the hydraulic oil between the HIGH and LOW calibrations.

A low hydraulic oil level can result in severe damage to pumps.

Over filling causes the excess oil to discharge from the breather vent.

On machines 726M3501 to 726M3600, the hydraulic tank is pressurized by the air compressor. A regulator is used to set air pressure to 8 psi.

NOTE: On machines 726M3601 and up the hydraulic oil tank is not pressurized. The tank is naturally vented via a breather filter installed on the top RH side of the tank.

2.39

Tigercat M726E Mulcher

Controls and Operation 5

•

OIL FILL SHUT OFF VALVE

•

AIR INTAKE PRECLEANER

726D-007

5. 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. However, it should be checked periodically to make sure that foreign materials have not plugged the intake area or the exhaust port area.

4

•

M726E-001

NOTE: The precleaner compartment should be checked and cleaned out daily to ensure proper operation of the precleaner.

HAND FILL PUMP

4. HYDRAULIC HAND FILL PUMP

CAUTION

AS THE AIR SPINS, CENTRIFUGAL FORCE SEPARATES FOREIGN MATERIALS FROM THE CLEAN AIR

PRESSURIZED HYDRAULIC TANK. Before servicing any hydraulic components, vent hydraulic tank. Open drain valve, loosen lock nut on regulator adjustment and turn regulator adjustment out (counter clockwise) to release all air pressure.

CONTAMINANTS ARE BLOWN OUT OF SPECIAL DISCHARGE PORTS BY HIGH VELOCITY, AIR POWERED ROTOR

•

•

•

CHECK SPINNER BLADES FOR WEAR. REPLACE IF WORN.

•

The hydraulic hand fill pump, located at the rear of the machine is used for adding oil to the hydraulic oil tank.

•

To add oil to the tank, (vent the tank on machines 726M3501 to 726M3600), clean suction tube and remove cap. Open oil fill shut-off valve, insert end of suction tube into supply drum and operate the pump. The oil is pumped directly into the hydraulic reservoir via a return filter. The pump should always be operated at a medium speed with steady motion. Pumping too fast may cause oil to bypass oil filter.

THE TURBO II PRECLEANER HAS SPECIALLY DESIGNED BLADES THAT CAUSE THE INCOMING AIR TO SPIN

ONLY THE PURIFIED AIR GOES TO THE AIR FILTER

TURBO 2 TURBO II PRECLEANER OPERATION NOTE: Periodically remove the precleaner assembly and check the spinner assembly for wear or dirt build-up on the blades. Clean the spinner assembly or replace it if the blades are worn.

IMPORTANT: Close shut-off valve after filling and replace cap on suction tube.

2.40

Tigercat M726E Mulcher

Controls and Operation

•• SAFETY ELEMENT

•• 726D-024

UNLOADER VALVE

AIR CLEANER UNLOADER VALVE

AIR CLEANER UNLOADER VALVE

••

This rubber valve on the tube of the air cleaner housing should be checked before every shift (8 hours). If this valve is missing, damaged or has turned hard, it will cause the air cleaner to become ineffective. The valve should suck closed at 1/3 throttle.

PRIMARY ELEMENT

This valve should be replaced every 1000 hours. Remove the unloader valve from the tube of the air cleaner housing. Check and clean the valve. A good valve is soft and flexible. If plugged, be sure to check the filter elements as they may need replacing as well. Reattach the valve to the tube.

AIR FILTER ELEMENTS

AIR CLEANER .PLT

6. AIR CLEANER The air cleaner on this machine uses two filter elements; a primary element and a safety element.

When operating in high dust conditions, the unloader valve should be checked and squeezed every 2 hours to release dust buildup.

To ensure maximum engine protection, it is important that the elements be serviced correctly and at proper servicing intervals.

In addition refer to the LUBRICATION AND MAINTENANCE SCHEDULE in AIR CLEANER MAINTENANCE in SECTION 3 of THIS MANUAL.

• 726D-020

FILTER RESTRICTION INDICATOR

FILTER RESTRICTION INDICATOR

A filter restriction indicator is mounted to the output side of the filter, this should show green when the engine is running at HIGH RPM. Service is required only if the indicator shows red.

2.41

Tigercat M726E Mulcher

Controls and Operation

CLEANING A/C CONDENSER, AND COOLER PACKAGE

PROCEDURE: 1. Swing out the top screen door and lift out the bottom screen panel on the right and left sides of the front engine area, behind the cab.

The A/C condenser core is located on the left side of the machine and is mounted directly in front of the charge air cooler, oil cooler and radiator. The cross-flow fan is mounted on the right side of the machine. The cross-flow fan draws air from the left side of the machine through the door screen, the A/C condenser, the charge air cooler, oil cooler and the engine radiator blowing it out of the right side of the machine.

726D-031

CHECK A/C CONDENSER CORE

2. The A/C condenser swings out to access the back-side of the condenser and the front of the cooler package for cleaning. It is held in place by two fasteners.

M726E003

Compressed air or water may be used for cleaning. Use personal protective equipment to guard against flying debris.

LEFT SIDE - A/C CONDENSER AND COOLER PACKAGE

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 will impair the reversible fan's ability to remove dust and dirt particles.

Care must be taken when cleaning this assembly, as the components can be damaged by careless handling and cleaning.

USING THE FAN SWITCH IN THE EVENT OF AN ENGINE COOLING AND/OR HYDRAULIC OIL TEMPERATURE ALARM.

M726E-004

RIGHT SIDE - CROSS-FLOW FAN

In the event of an engine cooling temperature and/or hydraulic oil temperature alarm:

The A/C condenser core, charge air cooler, radiator and oil cooler should be manually checked every 8 hours (every shift) or more often where conditions cause accumulation of twigs, leaves, pine needles and dust. All of the engine enclosure doors should also be checked.

1. Stop working the machine, keep engine at high idle.

CAUTION • If using compressed air for cleaning, use at 2.1 Bar (30 psi) or less.

• Always use personal protective equipment to guard against flying debris.

726E-001

FAN SWITCH

2. Place the fan control switch in the FULL ON position until cooling is achieved.

2.42

Tigercat M726E Mulcher

Controls and Operation

3. If necessary use the CLEAN function to reverse fan flow and clean debris from the charge air cooler, radiator, oil cooler, A/C condenser and air intake door screens.

SET REGULATOR ADJUSTMENT TO OBTAIN 8 PSI MAX READING ON GAUGE

AIR PRESSURE REGULATOR AND GAUGE 150 PSI RELIEF VALVE

4. In severe operating conditions manual cleaning of debris may be required.

AIR TOOL SUPPLY CONNECTOR

5. If the problem persists check engine coolant and/or hydraulic oil levels. Refer to OPERATING MACHINE ~ PRESTART CHECKS in THIS SECTION.

726M-O12

•

•• ••

DRAIN VALVE

•

•

HYDRAULIC OIL TANK AIR PRESSURE REGULATOR

On machines 726M3501 to 726M3600, an air pressure regulator is connected to the air supply.

This regulator controls air pressure inside the hydraulic oil tank only. It has no control of the air pressure available to the air tool connector. The hydraulic oil tank regulator is to be set at 0.5 Bar (8 psi) maximum. Never exceed 0.5 Bar (8 psi) as this will overpressurize the hydraulic oil tank.

The hydraulic oil tank regulator is located in the left side of engine compartment.

6. Return the fan control switch to AUTO and check for proper operation of the fan. In the event of a problem with the automatic control system the fan control switch should be placed in the FULL ON position while the machine is operating until the fan control can be properly repaired.

NOTE: AUTO REVERSE is disabled when fan is set to 'FULL ON".

CAUTION MACHINES 726M3501 TO 726M3600 ARE EQUIPPED WITH A PRESSURIZED HYDRAULIC TANK. Before servicing any hydraulic components, vent hydraulic tank. Open drain valve, loosen lock nut on regulator adjustment and turn regulator adjustment out (counter clockwise) to release all air pressure.

726M-014

The hydraulic oil tank is further protected from possible overpressurization by a 0.7 Bar (10 psi) relief/check valve in the hydraulic oil tank breather.

DRAINING THE AIR SUPPLY

AIR COMPRESSOR

AIR COMPRESSOR - AIR SUPPLY An air compressor and air tank are provided as an air supply for air tools. The air compressor is mounted on the engine. A governor on the air compressor regulates the air supply system pressure in the air tank to 8.3 Bar (120 psi) maximum.

AIR TANK

726M-013

ADJUST TO 8 PSI MAX

• •

DRAIN VALVE

With the engine off, drain the air supply at the drain valve daily, to remove moisture from the system.

NOTE: On machines 726M3501 to 726M3600, if the air supply is drained and the hydraulic tank is vented, the pressure for the hydraulic tank must be reset. Close the drain valve, idle the engine so that the compressor can refill the air tank. Once the air tank has refilled, turn the adjustment lever on the air regulator to set the air pressure in the hydraulic tank to 0.5 Bar (8 psi) maximum. DO NOT EXCEED 0.5 Bar (8 psi)i. Tighten the locknut on the lever.

•

AIR TANK

The air tank is located in the engine compartment.

An air tool connector is located in the left side of engine compartment for connection of air tools.

2.43

Tigercat M726E Mulcher OPERATING MACHINE

Controls and Operation

If the machine has had a major service, a rebuild, or the hydraulic oil has been drained, refer to STARTUP PROCEDURE AFTER MAINTENANCE in SECTION 3 of THIS MANUAL.

DIPSTICK

•

Before operating the machine, follow the PERIODIC MAINTENANCE instructions in SECTION 3 of THIS MANUAL. Also, refer to the Engine Operator's Manual supplied with this machine.

PRE-START CHECKS: 76-6A

CHECK FUEL LEVEL

3. Check fuel level (Dipstick provided).

SWITCH "OFF"

3

••

• SIGHT GAUGE HYD. OIL LEVEL

• KEY SWITCH "OFF"

SENDING UNIT LOW HYDRAULIC OIL

•

M726E-031

•

KEY & CUTTER SWITCHES OFF 1. Ensure key switch and cutter switch are in the OFF position.

M726E-002

HYDRAULIC OIL TANK

4. Check hydraulic oil level, the level should be between the ADD and FULL marks on the level gauge.

337-20

PARKING BRAKE ENGAGED POSITION (726M3501 TO 726M3560)

724E-004

PARKING BRAKE SWITCH (726M3561 AND UP)

2. Check parking brake for proper operation and and set parking brake ON (ENGAGED).

2.44

Tigercat M726E Mulcher

Controls and Operation

OIL LEVEL DIPSTICK

••

M726E-006

CHECK ENGINE OIL LEVEL 5. Check the engine oil level. The level of the oil must be between the ADD and FULL marks on the dipstick.

195-17

CHECK ENGINE COOLANT LEVEL

8. Check the engine coolant level.

GEARBOX DIPSTICK

WARNING

•

Shut off engine. Only remove filler cap when cool enough to touch with bare hands.

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

726M-16

726M-17

CHECK PUMP DRIVE GEARBOX OIL LEVEL 6. Check pump drive gearbox oil level (Dipstick provided) 726D-031

TRANSMISSION OIL LEVEL DIPSTICK

724D-D12

CLEAN A/C CONDENSER, COOLER PACKAGE AND DOOR SCREENS

9. Clean A/C condenser, charge air cooler, radiator, oil cooler and door screens.

TRANSMISSION OIL FILL PLUG

M726E-013

•• •

CHECK TRANSMISSION OIL LEVEL (726M3501 TO 726M3560) TRANSMISSION OIL LEVEL DIPSTICK AND FILL TUBE

M726E-035

••

CHECK TRANSMISSION OIL LEVEL (726M3561 AND UP)

7. Check transmission oil level (dipstick).

2.45

Tigercat M726E Mulcher

Controls and Operation

FILTER RESTRICTION INDICATOR

•

FILTER RESTRICTION INDICATOR 13. Check engine air cleaner restriction indicator.

726D-020

10. Check fuel filter as per engine manual and drain water from fuel line water separator.

14. Be sure that all covers, guards and doors are securely fastened.

ENGINE AIR PRECLEANER

PRESSURE GAUGE

AIR CHARGE VALVE

• •

M726E-036 726D-007

AIR INTAKE PRECLEANER

••

PRESSURIZED WATER SYSTEM

15. Check pressurized water tank pressure gauge, located on the left side of the seat base.

11. Check air intake pre-cleaner for foreign material build-up in air intake area or exhaust port area.

16. Check all of the fasteners retaining the cutter teeth and tighten them to the proper torque level.

17. Replace all worn cutter teeth or rotate worn teeth to align fresh cutting tips.

• 726D-024

18. Replace the tooth fastener whenever replacing a cutter tooth.

UNLOADER VALVE

19. Never start or use a machine if the cutter has missing teeth or missing teeth fasteners.

20. Shut down the machine immediately if you feel a vibration when the cutter is running.

AIR CLEANER UNLOADER VALVE

12. Check air cleaner unloader valve.

21. Check that the attachment housing is clear of debris and obstructions and undamaged.

2.46

Tigercat M726E Mulcher STARTING ENGINE:

Controls and Operation IMPORTANT: Allow a cold engine to warm up at LOW IDLE for at least five minutes before applying any load.

Check all gauges often during the warm up period.

1. Ensure that PRE START CHECKS have been performed and that the area is clear of personnel prior to starting the engine.

2. Sound horn to warn personnel of machine start-up.

CAUTION

NOTE: The engine will not turn over unless the parking brake is ENGAGED.

Do not start engine by shorting across starter terminals. Start engine only from operator's seat.

3. ENGAGE parking brake.

4. Turn the key switch to the RUN position. DO NOT START engine until the WAIT TO START warning light and PowerView display light go OFF. Perform BULB TEST, see procedure on this page.

If engine stalls while operating the machine, turn the key to the OFF position and repeat steps (1) through (5).

5. Turn key switch to START position to crank engine. When engine starts, release key to RUN position. Observe the display module to ensure the engine oil pressure rises above 10 psi.

Press and hold the bulb test switch to ensure that all warning lights illuminate, then release switch.

Replace any lights that do not turn on.

BULB TEST SWITCH

RESTARTING AN ENGINE THAT HAS RUN OUT OF FUEL If the engine runs out of fuel, perform the following: 1. Refill fuel tank completely.

2. Turn the key switch to the RUN position to turn on the fuel lift pump and fuel shut off solenoid. The fuel lift pump will run for approx 20 seconds. Turn key switch off and repeat.

As well, bleed the system according to engine manual procedures.

3. Crank engine until it starts. If it fails to start after 20 seconds, stop and wait for 2 minutes before trying again.

244-046

NOTE: Do not use ether to restart an engine that has run out of fuel.

DISPLAY MODULE

NOTE: If the engine does not start after three attempts, check the fuel supply system. Absence of blue or white exhaust smoke during cranking indicates no fuel is being delivered.

IMPORTANT: After engine has started, keep engine speed low until engine oil pressure registers on gauge. If it does not register within 10 seconds, stop engine and investigate cause.

WARNING DO NOT USE ETHER! Engine is equipped with an electric heater starting aid. Use of ether may cause an explosion and severe injury.

IMPORTANT: To prevent damage to starter, do not engage starter motor for more than 15 to 20 seconds.

Wait 2 minutes between each attempt to start the engine. If engine fails to start, refer to engine manufacturer OPERATOR'S MANUAL.

2.47

Tigercat M726E Mulcher

Controls and Operation IMPORTANT: To prevent damage to starter, do not engage starter motor for more than 15 to 20 seconds.

Wait 2 minutes between each attempt to start the engine. If engine fails to start, refer to engine manufacturer OPERATOR'S MANUAL.

COLD WEATHER STARTING

WARNING The Cummins QSC8.3 and QSL9 engine utilizes an air intake heater grid. To avoid personal injury and property damage, NEVER use a starting fluid.

Starting aid fluids, which contain Ether, can cause an explosion.

2. During the engine warm-up period constantly monitor engine coolant temperature and engine oil pressure. Stop engine if any pressure or temperature does not meet the specification.

IMPORTANT: Cold start-ups can result in pump failure, refer to "HYDRAULIC OIL CHART" for recommended oil viscosity and temperature ranges.

3. Continue with MACHINE PREPARATION procedure when the engine coolant temperature registers NORMAL.

NOTE: Cold temperatures require the use of an engine block heater, engine oil heater, hydraulic oil heater and fuel heater.

Preheating of hydraulic oil is recommended as standard procedure in cold weather.

1. Follow the STARTING ENGINE - CUMMINS QSC8.3 or QSL9 ENGINE MANUAL instructions for this COLD WEATHER STARTING procedure, paying attention to the WAIT TO START warning light and the PowerView Display located on the instrument panel.

WAIT TO START WARNING LIGHT

••

M726E-030

WAIT TO START LIGHT

This YELLOW warning light on the instrument panel and Powerview Display will be ON, also the Powerview Display will show "WAIT TO START" during the "key ON" engine pre-heat time. Heating elements (grid heater elements) located in the engine air intake manifold are turned ON during cold weather conditions to heat the intake air when starting the engine.

The engine must not be started until this light goes OFF automatically.

2.48

Tigercat M726E Mulcher

Controls and Operation

MACHINE PREPARATION SYSTEM TEST AND WARM-UP

(m) Set engine speed to LOW IDLE.

Before commencing operations, proceed with steps (a) through (n) to accomplish:

WARNING Ensure that the cutter has stopped rotating before leaving the cab.

• Warm up the hydraulic system.

• Test all systems for proper operation.

(n) Leave the cab and visually check hose connections and cylinders for leaks. Check under the machine for oil leaks.

• Inspect for hydraulic oil leaks.

CAUTION WARNING

If any system fails to respond to the controls, stop the warm-up procedure and call a mechanic, otherwise serious damage to pumps and other components could result.

Assuming machine was parked on level ground at last shutdown:

Never use your bare hand to check for fluid leaks.

Fluid leaks undbber 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) Start engine. (b) Ensure gauges and warning lights are indicating normal operating conditions. (c) Check that all personnel are clear of the machine. (d) Set engine speed to 1100 rpm. (e) Slowly raise and lower boom, check for proper operation.

With the attachment raised slightly off the ground: (f) Operate the mulcher door and clamp arms and check for proper operation. (g) Tilt the attachment forward and back and check that it is operating correctly. (h) Steer the machine to the left and right. (i) When cold weather conditions exist, continue the process of warming up the hydraulic system by repeating steps (e) through (h) several times. As the hydraulic system warms up, engine speed can be increased gradually to the HIGH IDLE position. (j) Turn attachment on. (k) After completion of the warm-up and system testing, turn the attachment OFF, stop the cutter and rest the attachment on the ground. (l) Set the parking brake ON.

2.49

Tigercat M726E Mulcher STOPPING ENGINE

Controls and Operation CARE OF THE MACHINE 1. Ensure that all fluid levels are always at the proper level. Use the preventative maintenance schedule in SECTION 3 of this manual .

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.

1. Park machine on level ground and rest attachment on the ground.

2. Apply grease to all lubrication points at required intervals.

3. Do not apply load to a cold engine.

4. Close and secure all doors and access covers.

2. Reduce engine speed to LOW IDLE and let run for approximately three minutes to allow gradual dissipation of heat and also to reduce turbocharger speed. This will also prevent loss of coolant by after boil and possible hot spot damage to the engine.

5. Do not allow branches, twigs, leaves or pine needles to build up around radiator intake doors or anywhere else on the machine.

Clean frequently.

6. Be sure that the attachment is resting on the ground before servicing or parking the machine.

3. Do not race engine before shut-off.

4. Engage parking brake.

7. Follow proper procedure for cleaning windows described in this section.

5. Stop engine by turning key switch to the OFF position.

WARNING • Before leaving the machine, park it in a safe position on level ground.

• Engage parking brake, lower the attachment to the ground.

• Never work behind, in front of, or below a machine that has been parked on a grade.

• Take additional precautions by placing the wheels against a rock, tree or other secure object.

IMPORTANT: Only use the master disconnect to shut off a running machine in an emergency. A fault code will be logged by the ECM on the engine for improper shut down and power down.

2.50

Tigercat M726E Mulcher

Controls and Operation

CARE OF POLYCARBONATE WINDOWS IN CAB

•

(Windshield, skylight and three rear windows) 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.

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. It is important to note that cracks, chips, notches or scarring anywhere on the viewing surface or edges of the window will decrease ability to resist heavy impacts and therefore compromise effectiveness as operator safety protective equipment. Windows with these defects must be replaced immediately.

Refer to the next section for detailed information regarding inspection and maintenance of polycarbonate windows.

• • •

•

Cracks, chips, notches or scarring anywhere on the viewing surface of the window will decrease ability to resist heavy impacts.

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.

RESISTANCE TO CHEMICALS 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.

Other chemicals however can seriously weaken the polycarbonate.

DO NOT permit any of the following chemicals to come into contact with polycarbonate windows: • acetone • air conditioning refrigerant • ammonia • anti-freeze • benzene • brake fluid • carbon tetrachloride • cutting oils • gasoline • lacquer thinner • toluene • turpentine • xylene 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 timetemperature related. This means that the higher the water temperature, the shorter the time before the polycarbonate is adversely affected.

INSPECTION AND MAINTENANCE Daily inspection and maintenance is essential to confirm that the window’s ability to protect the operator has not been compromised.

• 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 edges of the polycarbonate window must be free from cracks, chips, notches or scarring and must not be pinched or stressed.

These defects will decrease ability to resist heavy impacts. Windows with these defects must be replaced immediately.

2.51

Tigercat M726E Mulcher

Controls and Operation

Exposing polycarbonate to repeated steam cleanings 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.

CLEANING INSTRUCTIONS 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.

•

DO NOT use brushes, razor blades, scrapers, squeegees or other sharp tools 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.

1. Rinse the window thoroughly with lukewarm water 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.

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:

Brand name soaps and detergents recommended for cleaning polycarbonate are: • Fantastik • Formula 409 • Hexcel F.O. 554 • Joy • Lysol • Mr. Clean • Neleco-Placer • Pine-Sol • Top Job

• • •

Be certain to clean the polycarbonate window as outlined prior to application of an automotive polish. Refer to CLEANING INSTRUCTIONS. GRAFFITI REMOVAL •

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.

•

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.

3. Rinse the window thoroughly with lukewarm water.

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 also to RESISTANCE TO CHEMICALS for a list of chemicals which should not be permitted to come into contact with polycarbonate windows.

Refer also to RESISTANCE TO CHEMICALS for a list of chemicals which should not be permitted to come into contact with polycarbonate windows.

FIRE PRECAUTIONS

CAUTIONS •

Johnson’s Paste Wax Novus Plastic Polish #1 and #2 Mirror Glaze Plastic Polish

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.

DO NOT use abusive cleaning procedures either by hand or pressure washing on polycarbonate windows.

2.52

Tigercat M726E Mulcher

Controls and Operation

CLEANING INSTRUCTIONS FOR GLASS WINDOWS (BOTH DOORS) Normal window cleaning procedures are acceptable.

WINDOW SCREEN HANDKNOB

• 173-25

SIDE WINDOW SCREEN

SIDE WINDOW SCREENS The side window screens can be opened to clean the windows. Screens are provided for the personal protection of the operator. A handknob 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.

720D-024

HINGED SIDE WINDOW SCREENS

All handles should be hand tight only at all times.

20231A R1

2.53

Tigercat M726E Mulcher TOWING INSTRUCTIONS

Controls and Operation STEERING CYLINDERS

A malfunction of the machine's equipment may make towing necessary.

STEERING CYLINDERS

Towing is only recommended over short distances. It is always better to make repairs at the point where the machine is parked whenever possible.

1. To facilitate towing, the transmission must be placed in NEUTRAL, this will disconnect the wheels from the hydraulic motor.

NORMAL HOSE CONNECTIONS

SM47

HOSES ON ONE CYLINDER CROSS CONNECTED FOR TOWING

4. To allow the machine to steer while towing and prevent damage to the steering cylinders, cross 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.

229-20

5. On machines serial number 726M3561 and up equipped with hydraulic deactivated parking brake it will be necessary to provide portable hydraulic pressure (250 psi) at the parking brake supply (C6) on the pilot manifold.

GEAR SHIFT LEVER

Shifting Procedure: • Bring the machine to a full stop on level ground.

• Reduce the engine speed to IDLE. • Depress foot break pedal to hold the machine stationary.

• Move the gearshift lever (push or pull) to NEUTRAL.

C6

• 718D-046

PILOT MANIFOLD

Block the wheels. Remove parking brake supply hose from pilot manifold (C6) and connect to a remote power source. Plug port on pilot manifold. Pressurize circuit to 250 psi to disengage parking brake.

LIFT BOOM

• CYLINDER

5. Remove articulation lock bar.

•

6. The machine will be towed from the rear, making use of the towing lug at rear of machine underneath the bumper.

• 'T' HANDLE

195-22

Ensure a vehicle of equal power and size is used for towing.

LIFT BOOM CYLINDER LOCK IN LOCK POSITION

When going downhill, be sure to use a holdback vehicle as the machine is now without any effective braking.

2. Raise the attachment off the ground and install the boom cylinder lift lock. Turn off the engine.

7. When towing is completed, install articulation lock bar and reconnect steering cylinder hoses in proper location.

3. Install articulation lock bar.

2.54

Tigercat M726E Mulcher

Controls and Operation TRANSPORTING INSTRUCTIONS

CAUTION

IMPORTANT: When transporting the machine, Chains must be used to prevent forward, reverse and side to side movement of the machine.

Before towing, the transmission must always be placed in NEUTRAL. Never 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.

The machine may be transported with the wheels on or off. If the wheels are removed the machine must be blocked so that the center joint is one inch or more above the truck bed.

Never tow the machine at over 2 mph. This will cause significant damage to the transmission.

With the wheels on or off:•

The attachment must be lowered to the truck bed.

Never press the forward or reverse pedals while the transmission is in neutral. This will cause significant damage to the transmission.

•

The articulation lock bar must be installed.

•

The machine must be crossed chained (side to side) over and around both the front and rear axles.

IMPORTANT: Do not secure the machine to the truck ANYWHERE near the center joint area as this can seriously damage the center joint.

Use only transport regulation chains for this purpose, example; 5/16" grade 7 with a tensile strength of 43636 Kg/chain (96,000lbs/chain).

Using inferior or damaged chains could cause the load to shift.

The chains must be looped around the axles and hooked back onto the links of the chain creating a full loop around the axles. The chains should be attached to the opposite sides of the trailer and evenly tensioned with the load binders.

2.55

Tigercat M726E Mulcher ARTICULATION LOCK BAR

Controls and Operation

1. Position machine on level ground and steer machine into a straight ahead position.

2. Lower attachment to the ground, apply parking brake, stop engine and remove key.

WARNING To prevent movement of machine and possible injury, install articulation lock bar before performing any work in the center joint area.

3. Remove both retaining pins from the front and rear chassis and slide lock bar out of front chassis and into tube socket on rear chassis.

Line up holes at each end of lock bar with holes in chassis' and secure in place with both retaining pins. Install lynch pins.

REAR CHASSIS

FRONT CHASSIS

•

•

RETAINING PIN

•

• LYNCH PIN

• 726D-039

LOCK BAR

LOCK BAR IN LOCKED POSITION

4. After work is completed, slide lock bar into front chassis storage position and hold in place with retaining pin. Store second retaining pin in rear chassis tube socket.

Install lynch pins.

2.56

Tigercat M726E Mulcher LIFT BOOM CYLINDER LOCK

Controls and Operation

Before performing work under the attachment or lift boom, ensure that the attachment is firmly supported on level ground, on solid stands or, install lift boom cylinder lock. The lift boom cylinder lock is stored on the inside of the hydraulic pump compartment door.

WARNING

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

• Always install 'T' handle retainer bolt • Use only to support boom and attachment.

LIFT BOOM

• CYLINDER

• • 'T' HANDLE

195-22

LIFT BOOM CYLINDER LOCK IN LOCK POSITION

Completely raise lift boom and place lock over one of the two cylinder rods with the open side facing down and wide end against the cylinder gland. Install 'T' handle retaining bolt through center hole.

Do not place yourself under the boom or attachment, while doing this. Do not damage the piston rod when installing the boom lift lock. Turn off the engine, turn key back to RUN position, press the PILOT RESET to activate the pilot oil system and SLOWLY lower the boom until the boom lift lock is securely in place. To remove the boom lift lock, start the engine, press PILOT RESET and raise the boom completely. Without placing yourself under the boom or attachment, remove the 'T' handle retainer bolt, remove the boom lift lock and reinstall it on the inside of the hydraulic compartment door.

2.57

Tigercat M726E Mulcher Controls and Operation CHANGING THE ATTACHMENT - MULTIFUNCTION OPTION 1B. RELEASE PILOT PRESSURE

TOOLS REQUIRED 1. Drain Pan 2. Cloth Rags 3. Channel Lock Pliers 4. Hammer 5. 1 3/4" Combination Wrench

WARNING

•

Before performing any work on the attachment, ensure that the attachment is lowered and firmly supported on level ground. Failure to do so could result in serious injury or death from crushing.

•

1. REMOVING THE ATTACHMENT Ensure that the attachment is lowered and firmly supported on level ground, apply parking brake and stop engine.

If the attachment being removed is a Disc Saw Felling Head be sure to install the SAW GUARD and blade LOCK BOLT as outlined in the SAW OPERATING AND SERVICE MANUAL. Clean the attachment, boom and hoses of all debris and dirt.

•

Release pilot system pressure by performing the following steps: Close both cab doors. Turn key switch to ON position. Do not start the engine. Press pilot reset switch.

Fully apply brake foot pedal 10 times or more and at the same time move the right joystick lever through the boom functions.

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

••

CAUTION

ELECTRICAL CONNECTOR

726M-038

MACHINES 726M3501 TO 726M3600 ARE EQUIPPED WITH A PRESSURIZED HYDRAULIC TANK. Before servicing any hydraulic components, vent hydraulic tank. Open drain valve, loosen lock nut on regulator adjustment and turn regulator adjustment out (counter clockwise) to release all air pressure.

1C. DISCONNECT ELECTRICAL CONNECTOR Disconnect the attachment electrical connector (1) using a 1 3/4" wrench and plug connector end.

7

•

ADJUST TO 8 PSI MAX

• ••

1

2

6

•

••

5

••

1

4

3

•• • ••

DRAIN VALVE

726M-027

726M-006

DISCONNECT HOSE COUPLERS

1D. DISCONNECT HOSE COUPLERS Install a drain pan under hose couplers. Tap with a hammer to loosen couplers and unthread by hand.

Loosen couplers only when the pressure has been relieved. Relieve pressure on the ¾” fittings (3 to 7) by relieving pilot system pressure.

When disconnecting mulcher hoses it is easier to disconnect 1 ¼” hoses (1 & 2) last.

1A. VENT THE HYDRAULIC TANK On machines 726M3501 to 726M3600, vent the hydraulic tank by opening the drain valve beside the air regulator in the left side of the engine compartment. Loosen locknut and open air regulator.

CAUTION Relieve trapped pressure from pilot system and brake accumulators before performing work on components, or disconnecting any hoses.

Plug hose ends to prevent debris and moisture from entering hydraulic system.

2.58

Tigercat M726E Mulcher

Controls and Operation

1E. REMOVE THE LINK PINS

HOSE CONNECTION DESCRIPTION

WARNING Before performing any work on the attachment, ensure that the attachment is lowered and firmly supported on level ground. Failure to do so could result in serious injury or death from crushing.

7

•

1

4

•

7

8

2

6

1

5

••

••

4

3

•• • ••

6 8

726M-029

726M-027

1

FELLING HEAD HOSE CONNECTIONS

••

2

Felling Head

••

1. Attachment Motor Pressure 2. Attachment Motor Return 3. Clamp Close

• 3 726M-013

4. Accumulator Open 5

5. Attachment Motor Case Drain

MULCHING HEAD INSTALLATION

6. Accumulator Close

Remove the link pins (1) bolts (6), washers (7), spacers (8) and shims (4) at the boom arms leaving the links (2) fastened to the attachment.

7. Clamp Open 8. Attachment Electrical Connector 2

7

Remove the pins (3) bolts (6), washers (7), spacers(8) and shims (5) on the lower boom arms at the attachment.

•• ••

1

4

7 6 8

•

726M-029

6

1

•

4

•• •

••

5 8

••

726M-041

MULCHER HOSE CONNECTIONS

Mulcher 1. Attachment Motor Pressure

726D-001A

3

•

1

2

5

••

2. Attachment Motor Return

••

3. Optional Brush Bar Out

FELLING HEAD INSTALLATION

4. Debris Door Open 5. Attachment Motor Case Drain

Start the engine and back machine away from the attachment.

6. Debris door Close

See INSTALLING THE ATTACHMENT page 2.52 for procedure to connect alternate attachment.

Refer to HOSE CONNECTION DESCRIPTION and CONNECTING THE HOSE COUPLERS procedure in this section.

7. Optional Brush Bar In 8. Attachment Electrical Connector

2.59

3

Tigercat M726E Mulcher

Controls and Operation

2. INSTALLING THE ATTACHMENT

2C. CONNECT ELECTRICAL CONNECTOR Remove plug and cap, line up key slots and connect the attachment electrical connector using a 1 3/4" wrench.

1

4

7 6 8

726M-029

1

2

• 5 726D-001A

3

•

••

2D. CONNECTING HOSE COUPLERS Install a drain pan under hose connections.

Remove the caps and plugs from the hose couplers.

FELLING HEAD INSTALLATION

2A. INSTALL THE LINK PINS

Before connecting any hoses, ensure that both mating halves are free of any debris or moisture.

Start the engine and drive machine up to the attachment, line up the boom arms to the attachment lugs and crank arms to the links.

Use the shims (4 & 5) to center the boom arms in the attachment and the links in the crank arms.

Install the shims (5) to center the boom arm in the attachment lower boom arm lugs, then install boom arm pins (3), spacers (8), washers (7) and bolts (6) on the attachment lower boom arm lugs.

Install the links (2), shims (4) (using shims to center the links) and link pins (1), spacers (8), washers (7) and bolts (6) on the crank arms.

Torque pin bolts to 510-561 Nm (376-414 lbf-ft).

Ensure that the attachment is lowered and firmly supported on level ground, apply parking brake, stop engine and remove key.

CAUTION Relieve trapped pressure from pilot system and brake accumulators before performing work on components, or disconnecting any hoses.

2B. RELEASE PILOT PRESSURE Release pilot system pressure refer to RELEASE PILOT PRESSURE procedure on page 2.50.

2.60

2

1

• ••

••

1

2

••

1

•

••

••

CONNECT HOSE COUPLERS TO CONNECT:

726M-027

Thread coupler onto the nipple hand tight.

The ¾” (smaller) couplers (1) have a “Fully connected” line. Ensure that the end of the coupler is even with this line. The 1 ¼” (larger) couplers (2) should be threaded on by hand until they bottom out. All couplers will be sealed in this position, but debris and vibration may bump them loose. All couplers should be tightened just past hand tight by tapping them lightly with a hammer to ensure that they remain tight. When attaching mulcher hoses, it is easiest to attach the large 1 ¼” couplers first.

Tigercat M726E Mulcher

Controls and Operation

MODE SELECTOR SWITCH

8A

GREEN LED

•• ••

724E-006

RED LED

LOCKED IN SAW MODE

ELECTRONIC CONTROLLER

••• •

M726E-004

MODE SELECTOR SWITCH SHOWN LOCKED IN SAW MODE MODE SELECTOR SWITCH

8A

• •

M726E-010

UNLOCKED IN MULCHER MODE

The red LED on the electronic controller will flash a blink code if the mode selector switch is in the incorrect location. If the saw overspeeds, or if the speed sensor (on saw heads only) is malfunctioning the electronic controller will turn the attachment pump off.

M726E-004

724E-006

PLUS 1 ELECTRONIC CONTROLLER

3. RESET HYDRAULIC TANK PRESSURE MACHINES 726M3501 TO 726M3600

MODE SELECTOR SWITCH SHOWN IN MULCHER MODE 2E. SET ATTACHMENT MODE Set attachment mode selector switch to applicable mode. At all times when a saw head is installed on the machine the mode selector switch must be locked in the saw position. The attachment pump has the capability of providing enough flow to overspeed the saw. Running a saw faster than its rated speed is very dangerous. Overspeeding of the saw blade will cause un-repairable damage to the bearings and saw motor. If at anytime it appears as if the saw is spinning above normal operating speeds, turn the cutter switch off and have the system checked by an authorized service technician.

The cutter will not turn on if the mating half of the electrical connector is not attached, or if the mode selector switch is in the incorrect position.

2.61

The air supply has previously been drained and the hydraulic tank vented. The pressure for the hydraulic tank must be reset before resuming operation of the machine.

ADJUST TO 8 PSI MAX

• ••

DRAIN VALVE

726M-006

3A. Close the drain valve, idle the engine so that the compressor can refill the air tank.

3B. Once the air tank has refilled, turn the adjustment lever on the air regulator to set the air pressure in the hydraulic tank to 0.5 Bar (8 psi) maximum. DO NOT EXCEED 0.5 Bar (8 psi).

3C. Tighten the locknut on the lever.

Tigercat M726E Mulcher Controls and Operation CHANGING THE ATTACHMENT - MULTIFUNCTION QUICK ATTACHMENT OPTION TOOLS REQUIRED 1. Drain Pan 2. Cloth Rags 3. Channel Lock Pliers 4. Hammer 5. 1 3/4" Combination Wrench 6. 1" Paint Brush

CAUTION Relieve trapped pressure from pilot system and brake accumulators before performing work on components, or disconnecting any hoses.

WARNING Before performing any work on the attachment, ensure that the attachment is lowered and firmly supported on level ground. Failure to do so could result in serious injury or death from crushing.

1B. RELEASE PILOT PRESSURE Release pilot system pressure by performing the following steps:

1. REMOVING THE ATTACHMENT Ensure that the attachment is lowered and firmly supported on level ground, apply parking brake, (on Felling Head, Open Main Clamp and Close Accumulator Clamp), (on Mulching Head Close Deflector Door) and stop engine.

If the attachment being removed is a Disc Saw Felling Head be sure to install the SAW GUARD and blade LOCK BOLT as outlined in the SAW OPERATING AND SERVICE MANUAL.

•

Close both cab doors. Turn key switch to ON position. Do not start the engine. Press pilot reset switch.

•

Fully apply brake foot pedal 10 times or more and at the same time move the right joystick lever through the boom functions.

•

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

Clean the attachment, boom and hoses of all debris and dirt.

••

CAUTION MACHINES 726M3501 TO 726M3600 ARE EQUIPPED WITH A PRESSURIZED HYDRAULIC TANK. Before servicing any hydraulic components, vent hydraulic tank. Open drain valve, loosen lock nut on regulator adjustment and turn regulator adjustment out (counter clockwise) to release all air pressure.

726M-038

••

ELECTRICAL CONNECTOR

1C. DISCONNECT ELECTRICAL CONNECTOR Disconnect the attachment electrical connector (1) using a 1 3/4" wrench and plug connector end. Cap plug end if alternate attachment is not going to be installed.

ADJUST TO 8 PSI MAX

•

1

DRAIN VALVE

726M-006

1A. VENT THE HYDRAULIC TANK On machines 726M3501 to 726M3600, vent the hydraulic tank by opening the drain valve beside the air regulator in the left side of the engine compartment. Loosen locknut and open air regulator.

2.62

Tigercat M726E Mulcher

Controls and Operation

1D. DISCONNECT HOSE COUPLERS

1E. DISCONNECT THE ATTACHMENT

Place a drain pan under hose couplers to catch any spilled oil from between coupler halves. Use cloth rags to clean any dirt off couplers prior to disconnecting and reconnecting them.

Tap with a hammer to loosen couplers and unthread by hand.

POPPET VALVE

COUPLER

•

••

726M-053 FELLING HEAD MULCHER Lift the hoses out from under the boom adapter making sure they are clear of the boom adapter, then drape them over the attachment.

Start the engine, close the cab door and turn the pilot switch on.

726M-061

NIPPLE

• •

1

POPPET VALVE 726M-052

HOSE COUPLER AND NIPPLE HALVES NOTE: Hose coupler and nipple halves have popet valves incorporated in the couplings, the valves close automatically under normal conditions in both the coupler and nipple halves when the unit is being disconnected.

•

FOOT PEDALS

213-20

Depress the foot pedal (1) to retract the boom adapter locking pins.

LIFTING LUG

BOOM ADAPTER

7

6

••

••

2

••

9

8

••

10

5

1

4

3

• • • •• •

•

726M-027

FELLING HEAD HOSE CONNECTIONS LOCKING PIN RETRACTED

Loosen couplers only when the pressure has been relieved. Relieve pressure on the ¾” fittings (3 to 7) by relieving pilot system pressure.

726M-045

••

•

•• • 1

•

REMOVING ATTACHMENT

When disconnecting mulcher hoses it is easier to disconnect 1 ¼” hoses (1 & 2) last.

Using the R.H. joystick, TILT OUT and LOWER the boom adapter down and out of the hook on the lifting lug.

Install LOCKING PIN CYLINDER OPEN hose (9) on coupler (7) and install LOCKING PIN CYLINDER CLOSE hose (10) on coupler (3).

When the boom adapter is clear of the lifting lugs, slowly back the machine away from the felling head.

Plug attachment hose ends to prevent debris and moisture from entering hydraulic system.

Clean all machined surfaces and contact points (1) and use a 1" brush to apply a thin coat of multi-purpose grease to these surfaces (1).

2.63

Tigercat M726E Mulcher 3

2

1

Controls and Operation

••

••

5

4

6

••

8

7

••

9

••

••

•

••

••

••

••

10

4

726M-038

ELECTRICAL CONNECTOR FELLING HEAD HOSE CONNECTIONS

726M-047

1

5

3

2

6

10

8

4 7

9

HOSE CONNECTION DESCRIPTION LOCKING PIN EXTEND CONNECTION

Felling Head 1. Clamp Open

••

2. Accumulator Close

LOCKING PIN HOSE STORAGE

•• ••

LOCKING PIN RETRACT CONNECTION

••

3. Attachment Motor Return 4. Attachment Electrical Connector 5. Locking Pin Cylinder Extend - Storage

726M-048

6. Locking Pin Cylinder Retract - Storage

LOCKING PIN CYLINDER HOSE CONNECTIONS

7. Attachment Motor Case Drain

Above, the Locking Pin Hoses are shown in the active position with the electrical connector and attachment hoses removed. When the alternate attachment has been installed return the Locking Pin Hoses to their storage location.

8. Attachment Motor Pressure 9. Accumulator Open 10. Clamp Close 2.64

Tigercat M726E Mulcher

1

2

Controls and Operation

3

••

4

••

•

5

6

8

••

•

•

7

9

10

••

•

••

••

MULCHER HOSE CONNECTIONS

726M-054

1

5

3

2

6

10

8

4 7

9

HOSE CONNECTION DESCRIPTION Mulcher 1. Optional Brush Bar In 2. Debris door Close 3. Attachment Motor Return 4. Attachment Electrical Connector 5. Locking Pin Cylinder Extend - Storage 6. Locking Pin Cylinder Retract - Storage 7. Attachment Motor Case Drain

Above, the Locking Pin Hoses are shown in the storage location.

8. Attachment Motor Pressure 9. Debris Door Open 10. Optional Brush Bar Out 2.65

Tigercat M726E Mulcher

Controls and Operation

STORING THE ATTACHMENT

BOOM ADAPTER AND LOCKING PINS

Throughly clean the attachment of all debris and dirt and place the attachment on flat level ground.

Inspect the boom adapter daily for any signs of damage, broken, cracked or worn parts. If repairs are necessary, remove the attachment, perform a thorough inspection and replace or repair parts as necessary.

•• LUBRICATE

•• •• 726M-055

••

2

1

The mulching head must be resting on the lower flat (1) of the skid plate as shown, never rest the head on the forward flat (2) of the skid plate. The mulching head could be tipped back if is left to rest on the forward flat (2) of the skid plate.

•• ••

INSPECT BOOM ADAPTER

726M-050

LOCKING PIN CYLINDER

The cover plate for the Locking Pin Cylinder can be removed to clean out the area or inspect the lockin pin cylinder and hydraullic hoses if required.

LUBRICATE

•

726M-049

••

LOCKING PIN GREASE FITTING

••

726M-056

•

1

The Felling Head must be resting on the skid plates on flat level ground.

Clean all machined surfaces and contact points and use a 1" brush to apply a thin coat of multipurpose grease to these surfaces.

LUBRICATE LOCKING PINS Every 8 hours check the LOCKING PINS and ensure they are protruding past the boom adapter pin hole, also the LOCKING PINS (one on each side of the boom adapter) should be lubricated with an EP Multi-purpose grease containing 5% Moly. Purge the fitting until grease comes out between the boom adapter arms and the lifting lug.

726M-057

Refer to the attachment manual for more detail on proper storage of the attachment.

2.66

Tigercat M726E Mulcher

Controls and Operation

2. INSTALLING THE ATTACHMENT

CAUTION Relieve trapped pressure from pilot system and brake accumulators before performing work on components, or disconnecting any hoses.

2B. RELEASE PILOT PRESSURE Release pilot system pressure refer to RELEASE PILOT PRESSURE procedure on page 2.54.

2C. CONNECT ELECTRICAL CONNECTOR

726M-046

Remove plug and cap, line up key slots and connect the attachment electrical connector using a 1 3/4" wrench.

2A. INSTALLATION Start the engine and drive machine up to the attachment, line up the boom adapter to the attachment lugs. Position the boom adapter so the lifting pins are just below the hook on the lug and the pins are aganist the back of the lug.

2D. CONNECTING HOSE COUPLERS Install a drain pan under hose connections.

Remove the caps and plugs from the hose couplers.

Before connecting any hoses, ensure that both mating halves are free of any debris or moisture.

726M-059

Be sure both lug hooks are aligned with the boom adapter prior to lifting the attachment.

Using the right joystick operate TILT IN and at the same time slightly raise the boom slowly.

726M-027

TO CONNECT: NOTE: See also page 2.56 and 2.57 for details on HOSE CONNECTION DESCRIPTION.

As the attachment is raised, look down between the boom adapter arms to see the locking pin holes in the lug and boom adapter arms. This will help sight the locking pin hole alignment.

Thread coupler onto the nipple hand tight.

The ¾” (smaller) couplers have a “Fully connected” line. Ensure that the end of the coupler is even with this line. The 1 ¼” (larger) couplers should be threaded on by hand until they bottom out. All couplers will be sealed in this position, but debris and vibration may bump them loose. All couplers should be tightened just past hand tight by tapping them lightly with a hammer to ensure that they remain tight. When attaching mulcher hoses, it is easiest to attach the large 1 ¼” couplers first.

1

•

213-20

CONNECT HOSE COUPLERS

FOOT PEDALS

When the holes are aligned use the foot pedal (1) to extend the locking pins, have an assistant check to ensure the pins are fully extended. Lower the attachment to the ground. Be sure it is firmly supported on level ground, apply parking brake and stop engine.

Clean up any spilled oil and remove drain pan.

Refer to page 2.53 to SET ATTACHMENT MODE and RESET HYDRAULIC TANK PRESSURE. 2.67

Tigercat M726E Mulcher FUSES AND RELAYS

Controls and Operation

724E-006

726E-005

FUSE PANEL - IN CAB

FUSE AND RELAY PANEL - CAB Each major circuit on the vehicle is protected against current overload by fuses. The fuses and relays are located in two places on the machine.

The Cab fuse and relay panel is located in the compartment just below the main control panel as shown above. The main fuse and relay panel is located in the electrical box in the engine compartment as shown on the next page.

IMPORTANT

24 VOLT ELECTRICAL SYSTEM 2.68

Tigercat M726E Mulcher

Controls and Operation

M726E-006

MAIN FUSE AND RELAY PANEL - ENGINE COMPARTMENT This main fuse and relay panel is located in the electrical box in the engine compartment on the rear wall.

2.69

Tigercat M726E Mulcher

1

Controls and Operation

2

3

4

•

9

••

••

•

•

10

••

6

•

7

•

••

5

••

8 9

•• •

11

13

•

•• 12 14

• 1.

2.

3.

4.

5.

6.

7.

FIRE EXTINGUISHER LEFT FOOT PEDALS BRAKE PEDAL RIGHT FOOT PEDALS LEFT DOOR SAFETY SWITCH LEFT JOYSTICK SEAT

M726E-022

8.

9.

10.

11.

12.

13.

14.

RIGHT JOYSTICK FUSE AND RELAY PANEL RIGHT DOOR SAFETY SWITCH INSTRUMENT PANEL HEATER/AC CONTROLS BATTERY DISCONNECT SWITCH PILOT MANIFOLD (UNDER CAB)

CAB COMPONENTS AND CONTROLS 2.70

Tigercat M726E Mulcher

Controls and Operation

VEHICLE MOVING INSTRUCTIONS FOR 718E, 720E, 724E, 726E AND M726E MACHINES IMPORTANT: READ AND UNDERSTAND THESE SAFETY INSTRUCTIONS BEFORE OFF LOADING THIS MACHINE. SEE OPERATOR’S MANUAL IN PLASTIC POUCH BEHIND SEAT IN CAB FOR ADDITIONAL INFORMATION. 1. REMOVE SECURING PINS AND RED ARTICULATION LOCK BAR FROM BETWEEN FRAMES. IF DIFFICULTY EXPERIENCED, COMPLETE AFTER STEP 14 WHEN MACHINE CAN BE GENTLY STEERED AS IN STEP 17. WHEN RE-ENTERING CAB REPEAT STEPS 3, 4 AND 11.

2. TURN BATTERY DISCONNECT SWITCH ‘ON’. (LOCATED ON SIDE OF SEAT PEDESTAL.) 3. SIT IN OPERATOR’S SEAT AND CLOSE BOTH DOORS. 4. PLACE BOTH SEAT ARMRESTS IN DOWN, OPERATING POSITION. 5. ENSURE THAT PARKING BRAKE IS ENGAGED. 6. 720E, 724E 726E: PLACE CREEP SWITCH IN ‘CREEP’ POSITION. M726E: PULL THE SPEED LEVER FULLY BACK TO THE MINIMUM TRAVEL SPEED POSITION. 7. PRESS HORN SWITCH SEVERAL TIMES TO SOUND HORN TO ALERT PERSONNEL IN THE AREA OF YOUR INTENT TO START ENGINE. 8. PRESS AND HOLD BULB TEST SWITCH. ENSURE ALL WARNING LIGHTS AND HORN FUNCTION. 9. TURN KEY SWITCH TO ‘RUN’ POSITION UNTIL ‘WAIT TO START’ LIGHT TURNS OFF. 10. TURN KEY SWITCH TO ‘START’ POSITION. AFTER ENGINE STARTS, RELEASE KEY. 11. PRESS PILOT RESET SWITCH TO ACTIVATE ALL MACHINE CONTROLS. WARNING: ALL CONTROLS ARE NOW OPERATIONAL. 12. PRESS AND HOLD THROTTLE BUTTON UNTIL ENGINE SPEED INCREASES TO 1200 RPM AS SHOWN ON THE TACHOMETER. 13. PULL BACK ON RIGHT LIFT / TILT JOYSTICK HANDLE TO RAISE ATTACHMENT HEAD. BEWARE OF OVERHEAD OBSTRUCTIONS. 14. DISENGAGE PARKING BRAKE BY PLACING SWITCH IN ‘OFF’, POSITION. 15. ENSURE AREA IS CLEAR BEFORE MOVING MACHINE AND THAT ANY PERSONNEL IN THE AREA ARE AT A SAFE DISTANCE. 16. MOVE MACHINE BY DEPRESSING TRAVEL FOOT PEDALS ON THE RIGHT. RIGHT PEDAL IS FOR ‘FWD’ (FORWARD). LEFT PEDAL IS FOR ‘REV’ (REVERSE).

17. STEER MACHINE BY SLOWLY MOVING LEFT STEER JOYSTICK HANDLE (OR TURNING STEERING WHEEL IF EQUIPPED) TO DESIRED DIRECTION. 18. IF TRANSPORTATION OF MACHINE IS TO CONTINUE, REINSTALL RED ARTICULATION LOCK BAR AND SECURING PINS BETWEEN FRAMES. 19. PUSH FORWARD ON RIGHT LIFT/TILT JOYSTICK HANDLE TO LOWER ATTACHMENT HEAD TO GROUND. 20. WHEN PARKED, ENSURE THAT PARKING BRAKE IS ENGAGED. 21. PRESS AND HOLD THROTTLE BUTTON TO DECREASE ENGINE SPEED TO IDLE. 22. TURN KEY SWITCH TO ‘OFF’ POSITION TO SHUT OFF ENGINE. 23. TURN BATTERY DISCONNECT SWITCH ‘OFF’.

IMPORTANT: TO PREVENT DRAINING THE BATTERIES TURN ‘OFF’ MASTER DISCONNECT IF THE VEHICLE IS TO BE PARKED FOR AN EXTENDED PERIOD OF TIME. (OVERNIGHT).

VEHICLE MOVING INSTRUCTIONS

2.71

Tigercat M726E Mulcher

Controls and Operation

2.72

Tigercat M726E Mulcher SECTION 3 - LUBRICATION & MAINTENANCE CONTENTS - SECTION 3 AIR CLEANER MAINTENANCE .................................................................. 3.24 AIR CONDITIONING SYSTEM, CHECKING ............................................... 3.28 BELT, ENGINE SERPENTINE, REPLACING .............................................. 3.33 BLINK CODES ............................................................................................. 3.39 CENTER JOINT LUBRICATION .......................................................................................... 3.29 MAINTENANCE ........................................................................................ 3.29 DRIVE SHAFT SPLINE LUBRICATION, MIDDLE AND REAR .................... 3.34 EMERGENCY EXIT/SKYLIGHT .................................................................... 3.6 EMERGENCY EXITS, CHECK DAILY ........................................................... 3.6 FILTERS ENGINE AIR CLEANER ........................................................................... 3.24 FUEL FILTER/WATER SEPARATOR ...................................................... 3.20 HYDRAULIC OIL RETURN FILTERS ....................................................... 3.22 HYDROSTATIC CHARGE PUMP PRESSURE FILTERS ....................... 3.23 SERVICING GUIDELINES FOR OIL FILTERS ......................................... 3.23 FIRE PREVENTION ....................................................................................... 3.7 HYDRAULIC OILS ....................................................................................... 3.13 NEW MACHINE MAINTENANCE FIRST 125 HOUR INSPECTION AND SERVICE REPORT ....................... 3.2 INITIAL PRE-DELIVERY INSPECTION ...................................................... 3.2 TIGHTENING POINTS ............................................................................... 3.2 OIL LOST FROM LEAKAGE .......................................................................... 3.2 OIL SAMPLE COLLECTION PROCEDURES ................................................ 3.4 OIL SAMPLING PROGRAM .................................................................. 3.3, 3.4 PRESSURE SETTINGS .............................................................................. 3.43 PRESSURIZED WATER SYSTEM MAINTENANCE ................................... 3.26 SCHEDULED MAINTENANCE GENERAL ........................................................................................... 3.5, 3.7 8 HOURS .................................................................................................... 3.8 125 HOURS ................................................................................................ 3.9 250 HOURS ................................................................................................ 3.9 500 HOURS .............................................................................................. 3.10 1000 HOURS ............................................................................................ 3.10 2000 HOURS ............................................................................................ 3.11 SEASONAL .............................................................................................. 3.12 SERVICE AND LUBRICATION POINTS CHART .................... 3.14, 3.16, 3.18 SKYLIGHT/EMERGENCY EXIT .................................................................... 3.6 SPEED CONTROL LEVER ADJUSTMENT ................................................. 3.37 STARTUP PROCEDURE AFTER MAINTENANCE ..................................... 3.30 TORQUE CHART ........................................................................................ 3.41 TORQUE, FLUID CONNECTIONS .......................................... 3.44, 3.45, 3.46 TORQUE SPECIFICATIONS - GENERAL ................................................... 3.43 TRANSMISSION .......................................................................................... 3.29 WEIGHTS OF COMMERCIAL WOOD ........................................................ 3.48 WHEELS, INSTALLING ................................................................................. 3.2

APRIL, 2010

Tigercat M726E Mulcher

Lubrication and Maintenance

PREVENTIVE MAINTENANCE SCHEDULE NEW MACHINE MAINTENANCE *INITIAL PRE-DELIVERY INSPECTION:PERFORM THE INITIAL PRE-DELIVERY INSPECTION USING Tigercat FORM NUMBERS 5340 AND 5347; "PDI AND 125 HOUR INSPECTION REPORT"

*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" THIS MUST BE COMPLETED WITHIN THE FIRST 125 HOUR TIME FRAME. *IMPORTANT: TO QUALIFY FOR CONTINUED WARRANTY, THIS REPORT MUST BE COMPLETED AND RETURNED TO Tigercat Industries Inc. WARRANTY DEPARTMENT.

Tightening points for First 125 hour inspection report:~

IMPORTANT!

All hydraulic connections

Wheels:

Hose clamps

When installing wheels, ensure that all paint has been removed from the mating surfaces of both the wheel disc and the flange of the axle to ensure metal to metal contact.

Center joint pin securing bolts Transmission securing bolts Engine mounting bolts

For additional instructions also refer to section 8 of the service manual.

Pump drive gearbox securing bolts Axle mounting bolts

Hour meter ~ maintenance:

Wheel retaining bolts

Check the engine hour meter on a regular basis to determine your scheduled maintenance times.

Cab securing bolts Pin retainers

The intervals and times on the scheduled maintenance chart in this manual are for normal operating conditions.

Any other loose nut, bolt or fitting

If your machine is being operated in difficult or severe conditions, you should service your machine at shorter intervals.

NOTE: Use of filters other than genuine Tigercat replacement filters is not recommended.

Refer to diesel engine service manual and attachment manual for additional required maintenance at this scheduled time period.

*OIL LOST FROM LEAKAGE LEAKAGE RATE ONE DROP IN 10 SECONDS ONE DROP IN 5 SECONDS ONE DROP PER SECOND THREE DROP PER SECOND DROPS BREAK INTO STREAM

PER DAY 0.424 0.852 4.26 14.2 90.83

LOST 0IL (LITERS) PER PER MONTH YEAR 12.72 152.0 25.6 306.6 127.76 1533.1 425.86 5110.31 2725.5 32706.0

3.2

PER DAY 0.112 0.225 1.125 3.75 24.00

LOST 0IL (GALLONS) PER PER MONTH YEAR 3.36 40.0 6.75 81.0 33.75 405.0 112.5 1350.0 720.0 8640.0

Tigercat M726E Mulcher

Lubrication and Maintenance

TIGERCAT OIL SAMPLING PROGRAM Using the Tigercat Advanced Oil Analysis Program on a regular basis is an excellent preventative maintenance tool. Oil sampling cost is at the owner’s expense, however, studies have shown that it is possible to receive a 10 to 1 payback when looking at the amount saved on repair costs to the amount invested in a scheduled oil analysis program. Some of the benefits of a sampling program include: •

Detect problems early before they become major catastrophic failures.

•

Better ability to schedule downtime and forecast cost of repairs.

•

Monitor maintenance schedules and practices and confirm that the required maintenance is being done on time.

•

Increase used equipment value by providing proof of proper maintenance.

This Program uses the most modern technology available to analyze all oil 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. This report is available as a mailed or faxed hardcopy, sent via e-mail or can be viewed on the internet.

This program will provide Tigercat machine owners access to an Advanced Oil Analysis Program for all major machine components including powertrain components, specifically hydrostatic pump and motors, boom/steer pump, axles, transfer case, pump drive gearbox, etc.

700 Series Location

First Sample

Follow-up Samples

Hydraulic Oil

125 hrs

Every 1000 hrs or 6 Months

Transmission

125 hrs

Every Oil Change (500 hours or 3 Months)

Pump Drive Gearbox

125 hrs

Every Oil Change (500 hours or 3 Months)

*Front & Rear Axle

125 hrs

Every Oil Change (1000 hours)

*MACHINES 726M3603 TO 726M3604 AND 726M3611 AND UP Tigercat Oil 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 followup oil samples.

Refer also to OIL SAMPLE COLLECTION PROCEDURES in THIS SECTION for sample valve and drain plug locations.

TIGERCAT OIL ANALYSIS KITS Each kit includes a Pre-paid Sample Bottle and Sample Information Form. Pre-printed 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.

The same type of sample bottle can be used for all types of oil testing including: Hydrostatic pump and motors, boom/steer pump, axles, transfer case, pump drive gearbox, etc.

To ensure accurate and meaningful results are obtained, each kit also includes detailed instructions on how to properly collect, prepare and ship the oil samples.

Contact your Tigercat Dealer Parts Department to order Kits.

3.3

Tigercat M726E Mulcher

Lubrication and Maintenance

TIGERCAT OIL SAMPLING PROGRAM OIL SAMPLE COLLECTION PROCEDURES Fill out the Sample Information Form (SIF) completely and accurately. When taking multiple oil samples, fill out all of the required SIF forms in their entirety, prior to taking any oil samples. Then, immediately package each completed SIF form together with the matching oil 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 forms and oil samples. Incorrectly identified samples could result in a false warning alarm.

OIL SAMPLING CONNECTOR

••

• WATER ABSORBING ELEMENT (COLOR BLUE)

The accuracy of the lab analysis results is very dependent on the quality of the oil sample taken.

Collection of clean oil samples that are representative of the main body of oil 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 follow-up samples should be consistently taken from the same location using the same techniques as all previous samples.

M726E-002

HYDRAULIC OIL RETURN FILTERS

Hydraulic Oil Samples: • 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.

•

To obtain a representative oil sample, sample valves must be purged before the actual oil sample is taken. Drain a minimum of 3 or 4 ounces of oil into a separate container and discard this oil using approved recycling methods.

•

Replace the dust cover on the sample valve immediately after taking the oil sample and sealing the sample bottle.

• Ensure that all sample valves and drain plugs are clean and free of debris.

• Remove the sample bottle cap only when ready to take the sample. Keep the cap clean – do not put it in your pocket or let it get contaminated in any way.

Transmission, Axle and Pump Drive Gearbox Samples: • These samples can be taken during the oil change process.

• 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. All samples taken should be immediately forwarded to the lab for processing.

Contact your Tigercat dealer to purchase additional or replacement hydraulic sample valves or drain plugs.

In cases where oil samples must be pumped or otherwise drawn out of a reservoir or housing, a hand operated oil suction pump is also available from your Tigercat dealer.

3.4

•

To obtain a representative oil sample, ensure the oil is warm and has not settled very long (within 30 minutes of shutdown).

•

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.

Tigercat M726E Mulcher

Lubrication and Maintenance

GENERAL CAUTION 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.

Clean around filler caps before checking or adding fluids.

Release hydraulic pressures and clean around hydraulic fittings before breaking connection.

Plug or cap immediately.

Clean up spills as soon as possible.

Always use clean hydraulic oil and filters.

Drain dirty oil while still warm.

Do not exceed recommended fluid levels.

Service all hydraulic filters after the failure of a pump, motor, cylinder or valve. Failures of this nature could contaminate the entire hydraulic system.

Top up diesel fuel at end of each shift to reduce contamination by condensation.

Clean up oil spills on walking surfaces and top of engine enclosure immediately.

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.

Before welding on machine be sure master switch is disconnected and disconnect multi pin connectors on engine CPU and engine wiring harness.

When welding secure ground connection as close to working position as possible to prevent arcing across machined surfaces or through bearings.

Clean away all branches, bark and chips.

Clean up all traces of oil to avoid fires.

Always have a fire extinguisher at hand.

For safety, always lower boom assembly to the ground when leaving cab, leaving machine unattended or during service.

For safety, when working under boom, always lower to ground, support properly or install lift boom cylinder locking device . (Refer to section 2 of this manual) ______________________________________________

3.5

Tigercat M726E Mulcher

Lubrication and Maintenance

GENERAL CHECK EMERGENCY EXITS, DAILY:~

•• M726E-019

••

1

SKYLIGHT OUTSIDE HANDLES 1

•• M726E-016

L.H. DOOR PRIMARY EXIT

Two alternate exit routes are provided:

• SKYLIGHT - INSIDE HANDLES SKYLIGHT/EMERGENCY EXIT M726E-018

The Skylight serves as a third exit from the cab should the two doors become blocked. There are two retaining handles (1) on the inside and two on the outside to allow removal of the hatch from either side.

M726E-017

R.H. DOOR ALTERNATE EXIT

• Right hand cab door.

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.

SKYLIGHT

••

The R.H. Cab Door and Skylight are only to be used if the left hand cab door cannot be opened.

It is therefore essential that these emergency exits be checked every day to ensure they are fully operational.

M726E-017

SKYLIGHT ALTERNATE EXIT

• Skylight/emergency exit.

3.6

Tigercat M726E Mulcher

Lubrication and Maintenance

GENERAL CHECK FIRE EXTINGUISHER, DAILY:~

FIRE PREVENTION Maintaining your machine properly will greatly extend its life and reduce your operating costs.

Fire can result in a machine loss which can be financially devastating.

CAUTION CHECK CHARGE GAUGE DAILY

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.

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

1. Forest debris and fine organic material (twigs, pine needles, branches, bark, leaves, saw dust, small wood chips) and any other combustible materials when allowed to accumulate, form a fuel source that when ignited is extremely difficult to extinguish. 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 routings during maintenance, ensure that ALL wiring harnesses or hydraulic hoses are 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 boom system to the ground and shut off the engine before discharging the fire suppression system.

Also refer to FIRE PREVENTION in SECTION 1 of THIS MANUAL for additional information.

Refer to the manufacture's Use and Information manual for proper usage, additional information and recommended inspection and maintenance intervals.

3.7

Tigercat M726E Mulcher

Lubrication and Maintenance

SCHEDULED MAINTENANCE WARNING

• Lubricate tilt and lift cylinder ends, 8-fittings, purge • Lubricate lift boom and tilt linkage, 9 or 10 fittings, depending on attachment), purge Clean:~ • Potentially damaging limbs or sticks from machine.

WARNING, HOT FLUIDS 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 100°F (38°C)!

• Between air conditioner condensor, charge air cooler, oil cooler and radiator.

• Air intake (Turbo II) precleaner compartment.

Check:~ • For leakage around hydraulic components and flexible hoses.

• For loose nuts, bolts and fittings.

• Exhaust system for leaks.

• Condition and tension of accessory drive belt.

• Water pressure gauge in cab 4.14 Bar (60 psi) for pressurized water system.

EVERY 8 HOURS (EVERY SHIFT):~ • Check engine oil level

If the water system has been operated, refer to PRESSURIZED WATER SYSTEM MAINTENANCE in THIS SECTION for refilling and charging instructions.

• Drain fuel/water separator • Check air intake precleaner, clean as required • Check air cleaner unloader valve

• Conduct an overall visual inspection.

• Check air intake filter restriction indicator.

Replace primary filter if indicator is in red zone.

Replace secondary (safety) filter every third primary filter change to guarantee maximum performance and reliability.

• Refer to diesel engine service manual and attachment manual for additional required. maintenance at this scheduled time period.

• Check hydraulic oil level • Check pump drive gearbox oil level with dipstick • Check transmission oil level at dipstick • Check hydraulic tank air pressure rergulator, set pressure to 0.6 bar (8 psi).

• Lubricate mid drive shaft slip joint* 1-fitting, purge *Note: Lubricate mid drive shaft slip joint with machine articulated • Lubricate front drive shaft support bearing, 1-fitting, purge (If required) • Lubricate center joint bearings, 2-fittings, purge • Lubricate steering cylinder ends, 4-fittings, purge

3.8

Tigercat M726E Mulcher

Lubrication and Maintenance

SCHEDULED MAINTENANCE EVERY 125 HOURS:~ Visually inspect for:• Frayed electrical wiring and hydraulic hose • Wear in any other components

• Perform 8 hour maintenance And in addition:~ • Lubricate rear axle pivot, 2-fittings, purge • Lubricate rear drive shaft slip joint 1-fitting, purge Check:• Engine coolant level • Air intake primary filter element, check restriction indicator at FULL rpm • All 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 immediately.

• Charge Air Cooler for damage, wear, cracks, or leaks and repair immediately.

• Fluid level in batteries unless maintenance free • Engine rpm.

• Hydraulic oil restriction indicator for boom/saw circuit with engine at FULL rpm • Hydraulic pump and motor securing bolts • Check fuel tank filler screen • Torque tightening points as per new machine maintenance • Proper operation of pressurized water system.

(Refer to PRESSURIZED WATER SYSTEM in SECTION 2 of the OPERATOR'S MANUAL and PRESSURIZED WATER SYSTEM MAINTENANCE in THIS SECTION) Visually check for damage to:• Lift boom and tilt linkage • Front and rear frame • Center joint area • Attachment Make repairs immediately

3.9

Clean/replace:• Air conditioner re-circulation filter • Cab fresh air filter • Refer to diesel engine service manual and attachment manual for additional required maintenance at this scheduled time period.

EVERY 250 HOURS:~ • Perform 8 hour maintenance • Perform 125 hour maintenance And in addition replace:~ • Oil in pump drive gearbox NOTE: Refer to the service manual section 8 for oil change procedure.

• Oil in transmission NOTE: Refer to the service manual section 8 for oil change procedure.

• Refer to diesel engine service manual and attachment manual for additional required maintenance at this scheduled time period.

Tigercat M726E Mulcher

Lubrication and Maintenance

SCHEDULED MAINTENANCE EVERY 500 HOURS:~

EVERY 1000 HOURS:~

• Perform 8 hour maintenance

• Perform 8 hour maintenance

• Perform 125 hour maintenance

• Perform 125 hour maintenance

• Perform 250 hour maintenance

• Perform 250 hour maintenance

And in addition replace:~ • Engine fuel filter

• Perform 500 hour maintenance

• Hyd. Oil press. Filter, drive charge press. †

And in addition replace :~ • Engine air cleaner unloader valve

• Hyd. Oil return filters, boom/fan/steer/saw (high pressure)†

• Fuel intake strainer • Strainer in accumulator charge valve

• Hyd. Oil return filter, pilot (low pressure) †

• Oil in axles, front and rear (machines 726M3603 to 726M3604 and 726M3611 and up) NOTE: Refer to the service manual section 8 for oil change procedure.

• Lubricate door and door screen hinges.

Check:~ • All hydraulic pressures.

And in addition:~ • Lubricate front and rear axle pinion grease seal (machines 726M3603 to 726M3604 and 726M3611 and up) 1-fitting per axle, purge.

• Transmission mounting, Check, re-torque.

• Parking brake lever in cab, apply WD-40 to both sides of slide and clevis pin (If required).

Check:~ • Motion between center joint lugs

• Refer to diesel engine service manual and attachment manual for additional required maintenance at this scheduled time period.

• Refer to diesel engine service manual and attachment manual for additional required maintenance at this scheduled time period.

† Use of filters other than genuine Tigercat replacement filters is not recommended.

3.10

Tigercat M726E Mulcher

Lubrication and Maintenance

SCHEDULED MAINTENANCE EVERY 2000 HOURS:~ • Perform 8 hour maintenance • Perform 125 hour maintenance • Perform 250 hour maintenance • Perform 500 hour maintenance • Perform 1000 hour maintenance And in addition replace:~ • Oil in axles, front and rear (machines 726M3501 to 726M3602 and 726M3605) NOTE: Refer to the service manual section 8 for oil change procedure.

• Oil in hydraulic reservoir • Oil in hydraulic parking brake (if equipped) • Water in pressurized water system • Replace turbocharger rubber inlet elbow and coupling - High temperatures in this area can cause the rubber to harden. See AIR INTAKE MAINTENANCE in THIS SECTION • Check ALL air intake tubing, rubber couplings and band clamps for signs of wear and leakage and repair immediately.

• Refer to diesel engine service manual and attachment manual for additional required maintenance at this scheduled time period.

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 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.

NOTE: Check all hydraulic system components especially cooling fan for proper operation after hydraulic oil has been replaced.

3.11

Tigercat M726E Mulcher

Lubrication and Maintenance

SCHEDULED MAINTENANCE SEASONAL:~ Drain and refill hydraulic oil tank (and both front and rear axles on machines 726M3501 to 726M3602 and 726M3605) with recommended hydraulic oil. See "approved hydraulic oils".

Also see section 8 of the service manual for axle draining procedure.

Drain and refill pressurized water system.

(Refer to PRESSURIZED WATER SYSTEM in SECTION 2 of the OPERATOR'S MANUAL and PRESSURIZED WATER SYSTEM MAINTENANCE in THIS SECTION)

3.12

Tigercat M726E Mulcher

Lubrication and Maintenance

APPROVED HYDRAULIC OILS In addition to providing the vehicle with its normal operational functions, hydraulic oil is also used to fill the axle assemblies, apply brakes and operate differential locks.

Wet disk brakes in the axles require oil with specific properties to ensure reduced chatter and ensure proper lubrication of mechanical components.

Use only one of the following oils to fill or replenish the hydraulic system.

Chevron

Tractor hydraulic fluid (summer)

Citgo

Tractor hydraulic fluid (33-310) (summer)

Imperial

Esso hydraul 56 (summer) Hydraul 50 (low visc) (winter)

Shell

Donax TD (summer) Donax TDL (winter)

Sun

Sunfleet th fluid (summer)

John Deere

Type J20C (hy-gardtm) (summer) Type J20D (hy-gardtm) (winter)

3.13

Tigercat M726E Mulcher

Lubrication and Maintenance

MACHINES SERIAL NUMBER 726M3501 TO 726M3560

M726E LUBECHART .XLS

3.14

Tigercat M726E Mulcher

Lubrication and Maintenance

MACHINES SERIAL NUMBER 726M3501 TO 726M3560 Tigercat® Model M726E SERVICE AND LUBRICATION POINTS REFER TO Tigercat OPERATOR'S MANUAL FOR FURTHER INFORMATION

COOLANT FILTER

3

CENTER JOINT PIVOT

LUB

4

ENGINE OIL AND FILTER CUMMINS QSL9

CHK

5

FUEL FILTER

6

FUEL/WATER SEPARATOR

7

FUEL CAP SCREEN

8

INTAKE 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 * STEER/FAN/BOOM

15 16

HYDRAULIC OIL FILTER * ATTACHMENT AND/OR FAN/STEER

42

11

DESCRIPTION

REP

60% ANTIFREEZE/40% DISTILLED WATER (GM6035M SPEC.) 1

CHK

•

•

2

CHECK MOTION BETWEEN CHASSIS LUGS

1

• SEE ENGINE MANUFACTURER'S MAINTENANCE MANUAL FOR PROCEDURES, CAPACITIES AND REPLACEMENT INTERVALS

•

REP DRN

QTY

2000

1000

500

CHK

USG

2

CAPACITY

LITERS

COOLING SYSTEM

250

8

1

125

SERVICE POINT NO.

SERVICE EVERY ITEM

REP

1

CHK

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

REP REP

REP †

1

CHECK FILTER RESTRICTION INDICATOR. REFER TO 8 HOUR SCHEDULED MAINTENANCE FOR DETAILS (SECTION 3 IN MANUAL).

1

REFER TO SECTION 3 IN MANUAL

3

CHECK FOR LOOSE CLAMPS AND DAMAGED RUBBER COMPONENTS. REPLACE RUBBER COMPONENTS.

1

WATER ABSORBING (BLUE)

1

REP †

2

17

HYDRAULIC OIL FILTER PILOT

REP †

1

18

HYDRAULIC OIL FILTER HYDRAULIC DRIVE CHARGE PRESSURE

REP †

1

19

A/C & HEATER FILTERS

REP †

2

20

PUMP DRIVE GEARBOX

CHK

D/R

4.9

1.3

CHECK LEVEL WITH DIPSTICK. FILL WITH S 75W-90. RECOMMENDED SYNTHETIC GEAR OIL FOR SEVERE DUTY APPLICATIONS.

21

TRANSMISSION - TIGERCAT 1 SPEED - FUNK 2 SPEED

CHK CHK

D/R D/R

5.7 4.9

1.5 1.3

CHECK LEVEL WITH DIPSTICK. FILL WITH MIL-L-2105C OR API-GL-5 BELOW -10Fº(-23ºC) USE 75W-90 UP TO 100ºF(38ºC) USE 80W-90 ABOVE 100ºF(38ºC) USE 85W-140

22

AXLES: FRONT REAR

D/R D/R

53 31

14 8.2

23

HYDRAULIC RESERVOIR

D/R

220

58

24

PARKING BRAKE

25

ATTACHMENT

26

PRESSURIZED WATER SYSTEM

27

ACCUMULATOR CHARGE VALVE STRAINER

28

QUICK ATTACH LOCKING PINS

CHK

CHK

CHK

CLEAN OR REPLACE AS NECESSARY

DRAIN AND REFILL COMPLETE SYSTEM ANNUALLY OR AS REQUIRED SEASONALLY. MUST MEET JOHN DEERE TYPE J20C (HY-GARD) SUMMER OR TYPE J20D (HY-GARD) WINTER REFER TO SECTION 2 OF OPERATOR'S MANUAL. APPLY WD-40 TO BOTH SIDES OF SLIDE AND CLEVIS PIN ON HANDLE.

CHK LUB

SEE ATTACHMENT MANUFACTURER'S MANUAL CHK TEST

CHECK SYSTEM PRESSURE, 60 PSI REFER TO SECTION 2 OPERATOR'S MANUAL.

D/R REP

1

LUB

* Functions for 14, 15 and 16 depends on whether the machine is in Mulcher mode or Saw mode.

3.15

Tigercat M726E Mulcher

Lubrication and Maintenance

MACHINES SERIAL NUMBER 726M3561 TO 726M3602 AND 726M3605

M726E LUBECHART .XLS

3.16

Tigercat M726E Mulcher

Lubrication and Maintenance

MACHINES SERIAL NUMBER 726M3561 TO 726M3602 AND 726M3605 Tigercat® Model M726E SERVICE AND LUBRICATION POINTS REFER TO Tigercat OPERATOR'S MANUAL FOR FURTHER INFORMATION CAPACITY

COOLANT FILTER

3

CENTER JOINT PIVOT

LUB

4

ENGINE OIL AND FILTER CUMMINS QSL9

CHK

5

FUEL FILTER

6

FUEL WATER SEPARATOR

7

FUEL CAP SCREEN

42

11

DESCRIPTION

REP

60% ANTIFREEZE/40% DISTILLED WATER (GM6035M SPEC.) 1

CHK

•

•

2

CHECK MOTION BETWEEN CHASSIS LUGS

1

• SEE ENGINE MANUFACTURER'S MAINTENANCE MANUAL FOR PROCEDURES, CAPACITIES AND REPLACEMENT INTERVALS

•

REP DRN

QTY

2000

1000

USG

2

500

CHK

LITERS

COOLING SYSTEM

250

8

1

125

SERVICE POINT NO.

SERVICE EVERY ITEM

REP

1

CHK

1

8

INTAKE FUEL STRAINER

1

DRAIN TANK, CLEAN OR REPLACE AS NECESSARY

9

AIR INTAKE PRECLEANER

CHK

1

CLEAN AS REQUIRED / INSPECT IMPELLER FOR WEAR OR DAMAGE REPLACE AS NECESSARY

10

AIR INTAKE PRIMARY FILTER ELEMENT

CHK

1

11

AIR INTAKE SAFETY FILTER ELEMENT

CHK

1

CHECK FILTER RESTRICTION INDICATOR. REFER TO 8 HOUR SCHEDULED MAINTENANCE FOR DETAILS (SECTION 3 IN MANUAL).

12

AIR CLEANER UNLOADER VALVE

CHK

1

REFER TO SECTION 3 IN MANUAL

13

AIR INTAKE CONNECTIONS

CHK

3

CHECK FOR LOOSE CLAMPS AND DAMAGED RUBBER COMPONENTS. REPLACE RUBBER COMPONENTS.

14

HYDRAULIC OIL FILTER * STEER/FAN/BOOM

REP †

1

WATER ABSORBING (BLUE)

16

HYDRAULIC OIL FILTER * ATTACHMENT AND/OR FAN/STEER

REP †

2

17

HYDRAULIC OIL FILTER PILOT

REP †

1

18

HYDRAULIC OIL FILTER HYDRAULIC DRIVE CHARGE PRESSURE

REP †

1

19

A/C & HEATER FILTERS

REP †

2

20

PUMP DRIVE GEARBOX

CHK

D/R

4.9

1.3

21

TRANSMISSION - 1 SPEED - 2 SPEED

CHK CHK

D/R D/R

5.7 4.9

1.5 1.3

22

AXLES: FRONT REAR

D/R D/R

53 31

14 8.2

23

HYDRAULIC RESERVOIR

D/R

220

58

15

24

PARKING BRAKE

25

ATTACHMENT

26

PRESSURIZED WATER SYSTEM

27

ACCUMULATOR CHARGE VALVE STRAINER

28

QUICK ATTACH LOCKING PINS

CHK

CLEAN OR REPLACE AS NECESSARY

REP

REP

CHK

1

CHK

CHK

D/R

0.5

CLEAN OR REPLACE AS NECESSARY CHECK LEVEL WITH DIPSTICK. FILL WITH MIL-L-2105C OR API-GL-5 BELOW -10ºF(-23ºC) USE 75W-90 ABOVE 100ºF(38ºC) USE 85W-140 RECOMMENDED SYNTHETIC GEAR OIL FOR SEVERE DUTY APPLICATIONS MIL-PRF 2105E OR API GL-5 BELOW TO -100ºF(-38ºC) USE 75W-90 UP TO 100ºF(38ºC) USE 85W-140 DRAIN AND REFILL COMPLETE SYSTEM ANNUALLY OR AS REQUIRED SEASONALLY. MUST MEET JOHN DEERE TYPE J20C (HY-GARD) SUMMER OR TYPE J20D (HY-GARD) WINTER 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 CHK TEST

CHECK SYSTEM PRESSURE, 60 PSI REFER TO SECTION 2 OPERATOR'S MANUAL.

D/R REP

1

LUB

* Functions for 14, 15 and 16 depends on whether the machine is in Mulcher mode or Saw mode.

3.17

Tigercat M726E Mulcher

Lubrication and Maintenance

MACHINES SERIAL NUMBER 726M3603 TO 726M3604 AND 726M3611 AND UP

M726E LUBECHART .XLS

3.18

Tigercat M726E Mulcher

Lubrication and Maintenance

MACHINES SERIAL NUMBER 726M3603 TO 726M3604 AND 726M3611 AND UP Tigercat® Model M726E SERVICE AND LUBRICATION POINTS REFER TO Tigercat OPERATOR'S MANUAL FOR FURTHER INFORMATION CAPACITY

COOLANT FILTER

3

CENTER JOINT PIVOT

LUB

4

ENGINE OIL AND FILTER CUMMINS QSL9

CHK

5

FUEL FILTER

6

FUEL/WATER SEPARATOR

7

FUEL CAP SCREEN

8

INTAKE FUEL STRAINER

9

AIR INTAKE PRECLEANER

10

42

11

DESCRIPTION

REP

60% ANTIFREEZE/40% DISTILLED WATER (GM6035M SPEC.) 1

CHK

2

CHECK MOTION BETWEEN CHASSIS LUGS

REP

1

• SEE ENGINE MANUFACTURER'S MAINTENANCE MANUAL FOR PROCEDURES, CAPACITIES AND REPLACEMENT INTERVALS

REP

1

•

•

DRN

QTY

2000

1000

USG

2

500

CHK

LITERS

COOLING SYSTEM

250

8

1

125

SERVICE POINT NO.

SERVICE EVERY ITEM

•

CHK

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

AIR INTAKE PRIMARY FILTER ELEMENT

CHK

1

11

AIR INTAKE SAFETY FILTER ELEMENT

CHK

12

AIR CLEANER UNLOADER VALVE

CHK

CHK

1 REP

1

REFER TO SECTION 3 IN MANUAL

3

CHECK FOR LOOSE CLAMPS AND DAMAGED RUBBER COMPONENTS. REPLACE RUBBER COMPONENTS.

1

WATER ABSORBING (BLUE)

13

AIR INTAKE CONNECTIONS

14

HYDRAULIC OIL FILTER * STEER/FAN/BOOM OR BOOM

REP †

16

HYDRAULIC OIL FILTER * ATTACHMENT AND/OR FAN/STEER

REP †

2

17

HYDRAULIC OIL FILTER PILOT/LOW PRESSURE RETURN

REP †

1

18

HYDRAULIC OIL FILTER HYDRAULIC DRIVE CHARGE PRESSURE

REP †

1

19

A/C & HEATER FILTERS

REP †

2

20

PUMP DRIVE GEARBOX

CHK

D/R

21

TRANSMISSION

CHK

D/R

22

AXLES: FRONT REAR

D/R D/R

23

PINION GREASE SEAL - FRONT/REAR AXLE

LUB

24

HYDRAULIC RESERVOIR

15

25

PARKING BRAKE

26

ATTACHMENT

27

PRESSURIZED WATER SYSTEM

28

ACCUMULATOR CHARGE VALVE STRAINER

29

QUICK ATTACH LOCKING PINS

CHK

REP

CHK

CHECK FILTER RESTRICTION INDICATOR. REFER TO 8 HOUR SCHEDULED MAINTENANCE FOR DETAILS (SECTION 3 IN MANUAL).

1

CHK

1.3

4.9

1.3

26.5 24.6

7.0 6.5

PURGE

D/R

CHK

4.9

D/R

220

0.5

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

2

ONE FITTING PER AXLE LITHIUM BASE EP2 GREASE DRAIN AND REFILL COMPLETE SYSTEM ANNUALLY OR AS REQUIRED SEASONALLY. MUST MEET JOHN DEERE TYPE J20C (HY-GARD) SUMMER OR TYPE J20D (HY-GARD) WINTER

58

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 CHK TEST

CHECK SYSTEM PRESSURE, 60 PSI REFER TO SECTION 2 OPERATOR'S MANUAL.

D/R REP

1

LUB

* Functions for 14, 15 and 16 depends on whether the machine is in Mulcher mode or Saw mode.

45858BENG R2

3.19

Tigercat M726E Mulcher

Lubrication and Maintenance IMPORTANT: If the fuel supply is dirty, the fuel filter must be replaced more frequently than recommended in the owner’s manual. Operating the machine with a clogged fuel filter will result in low engine power. It is also recommended that the fuel/water separator bowl be drained daily.

FILTERS - REMOVE AND REPLACE IMPORTANT: Failure to service and replace filters at the proper intervals specified in the manufacturer's manuals, could cause damage to the machine and result in the product warranty becoming NULL and VOID. Check Tigercat parts catalog for replacement filters.

When installing a new fuel filter, DO NOT pre-fill with diesel fuel, or engine fuel pump damage will result. This type of failure is not warrantable by the engine manufacturer.

To prolong the operating life of the fuel filter, ensure that the fuel supply storage tank is clean and free of water and that the fuel is pre-filtered prior to adding it to the machine.

FUEL FILTER/WATER SEPARATOR Two fuel filters are supplied with the engine. Refer to the engine manufacturer's operation and maintenance manual for service information and replacement interval.

IMPORTANT: Filters that are an integral part of the engine (fuel and lubricating oil) should be serviced and replaced according to the engine manufacturer's operation and maintenance manual.

Tigercat generally does not recommend the pre-filling of fuel filters due to the risk of damage to the fuel system caused by unfiltered fuel. Unfiltered fuel used to pre-fill filters enters directly into the fuel system. Contaminants in unfiltered fuel can cause significant and costly damage to the engine. The cleanliness of fuel cannot be guaranteed unless it is always prefiltered before use.

3.20

Tigercat M726E Mulcher

Lubrication and Maintenance

FUEL TANK STRAINER This is a stainless steel fuel strainer, screwed on to the inlet pipe of the engine fuel feed line inside at the bottom of the fuel tank.

Changing or cleaning the strainer: 1. Park machine on level ground, install articulation lock pin, lower cutting head to ground, stop engine, engage parking brake and block wheels.

2. Drain the fuel tank. (plug in bottom) STRAINER

3. Remove the round fuel tank cleanout cover plate and “O” ring from the access hole.

••

4. Before removing the strainer, clean any debris from the bottom of the tank and wipe it clean.

5. Remove the fuel strainer using the hex on the end of strainer. Carefully clean the strainer (it may be damaged by rough handling).

726-008.PLT

6. Check for a buildup of foreign materials where the strainer threads on to the pipe and elbow.

7. Reinstall the strainer using the hex on end.

8. Reinstall fuel tank cover plate with “O” ring.

9. Refuel and check for leaks. Start the engine and check for leaks again.

3.21

FUEL TANK STRAINER

Tigercat M726E Mulcher

Lubrication and Maintenance 4. Place rags below to catch the spillage of oil.

5. Wearing face protection (in case of an oil squirt), unscrew the old filter. 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 Tigercat spin-on filter element is supplied with two gaskets. The M726E uses the round ('O' ring style) section gasket for all the return filters. Discard the square section gasket.

•• WATER ABSORBING ELEMENT (COLOR BLUE) M726E-002

HYDRAULIC OIL RETURN FILTERS

•

HYDRAULIC OIL RETURN FILTERS There are four full flow filters mounted on filter heads with built-in bypasses. These filters are for boom/cutter, steer/fan . The steer/fan (blue) filter contains a water absorbing element. For service and replacement intervals see SERVICE AND LUBRICATION CHART in THIS SECTION.

•

GASKET

• FILTER ELEMENT

CAUTION

FILTR_SEALS2

ROUND SECTION GASKET INSTALLATION

MACHINES 726M3501 to 726M3600 ARE EQUIPPED WITH A PRESSURIZED HYDRAULIC TANK. Before servicing any hydraulic components, vent hydraulic tank.

Open drain valve, loosen lock nut on regulator adjustment and turn regulator adjustment out (counter clockwise) to release all air pressure.

Refer to SECTION 2 of this manual for air pressure regulator adjustment details.

8. Remove used gasket and clean gasket seat in head.

9. Apply clean oil to new round gasket surfaces.

10. Install new round section gasket into inside lip of filter.

11. Screw on new filter until filter makes contact with filter head.

Changing the filters:

12. Tighten filter until top edge makes metal to metal contact with head. (Approximately 1 1/2 additional turns after gasket contact)

1. Park machine on level ground, install articulation lock bar, lower attachment to ground, stop engine, pull parking brake ON and block wheels.

13. On machines 726M3501 to 726M3600, close the air supply system drain valve.

2. On machines 726M3501 to 726M3600, drain the air supply system at the drain valve and vent the hydraulic tank. Refer to SECTION 2 of this manual for VENTING HYDRAULIC RESERVOIR procedure.

3. Wipe clean the area around the filter and head.

FILTER HEAD

14. Start the engine and check for leaks.

NOTE: On machines 726M3501 to 726M3600, refer to SECTION 2 of this manual for AIR SUPPLY SYSTEM and AIR PRESSURE REGULATOR adjustment details.

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.

3.22

Tigercat M726E Mulcher

Lubrication and Maintenance 5. Wearing face protection (in case of an oil squirt), unscrew the old filter. 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.

•• CHARGE PRESSURE FILTER

M726E-008

8. Screw on the new filter until the gasket makes contact with the seat in the filter head.

•

9. Hand tighten filter an additional 1/2 turn only.

PILOT AND CASE DRAIN RETURN FILTER

SET REGULATOR ADJUSTMENT TO OBTAIN 8 PSI MAX READING ON GAUGE

AIR PRESSURE REGULATOR AND GAUGE 150 PSI RELIEF VALVE

CHARGE/CASE/PILOT FILTERS

HYDROSTATIC CHARGE PUMP PRESSURE FILTERS

AIR TOOL SUPPLY CONNECTOR

There are two other full flow filters mounted on filter heads with built-in bypasses. One is in the output side of the hydrostatic drive charge pump and the other is the low pressure and pilot return.

For service and replacement intervals see SERVICE AND LUBRICATION CHART in THIS SECTION.

726M-O12

•

• •

DRAIN VALVE

•

••

HYDRAULIC OIL TANK AIR PRESSURE REGULATOR

10. On machines 726M3501 to 726M3600, close the air supply system drain valve.

11. Start the engine and check for leaks.

NOTE: On machines 726M3501 to 726M3600, refer to SECTION 2 of this manual for AIR SUPPLY SYSTEM and AIR PRESSURE REGULATOR adjustment details.

CAUTION MACHINES 726M3501 to 726M3600 ARE EQUIPPED WITH A PRESSURIZED HYDRAULIC TANK. Before servicing any hydraulic components, vent hydraulic tank.

Open drain valve, loosen lock nut on regulator adjustment and turn regulator adjustment out (counter clockwise) to release all air pressure.

Refer to SECTION 2 of this manual for air pressure regulator adjustment details.

HYDRAULIC FILTER SERVICING GUIDELINES FOR M726E MULCHERS IMPORTANT! NEVER PRE-FILL HYDRAULIC FILTERS

Changing the filters: 1. Park machine on level ground, install articulation lock bar, lower attachment to ground, stop engine, pull parking brake ON and block wheels.

2. On machines 726M3501 to 726M3600, drain the air supply system at the drain valve and vent the hydraulic tank. Refer to SECTION 2 of this manual for VENTING HYDRAULIC RESERVOIR procedure.

3. Wipe clean the area around the filter and head.

4. Place rags below to catch the spillage of oil.

3.23

Tigercat generally does not recommend the prefilling 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 prefiltered before use.

Tigercat M726E Mulcher

Lubrication and Maintenance

AIR CLEANER MAINTENANCE

AIR CLEANER

726D-008

726D-007

ENGINE AIR CLEANER

AIR INTAKE PRECLEANER

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. However, it should be checked periodically to make sure that foreign materials have not plugged the intake area or the exhaust port area.

The air cleaner on this machine uses two filter elements; a primary element and a safety element accessible in the hydraulic pump compartment.

To ensure maximum engine protection, it is important that the elements be serviced correctly and at proper servicing intervals.

NOTE: The precleaner compartment should be checked and cleaned out daily to ensure proper operation of the precleaner.

CONTAMINANTS ARE BLOWN OUT OF SPECIAL DISCHARGE PORTS BY HIGH VELOCITY, AIR POWERED ROTOR

AS THE AIR SPINS, CENTRIFUGAL FORCE SEPARATES FOREIGN MATERIALS FROM THE CLEAN AIR

• 726D-020

•

SPINNER BLADE

•

•• •

SPINNER ARM

•

FILTER RESTRICTION INDICATOR

FILTER RESTRICTION INDICATOR

A filter restriction indicator is mounted to the output side of the air cleaner. This should show green when the engine is running at FULL RPM. Service is required only if the indicator shows red.

•

THE TURBO II PRECLEANER HAS SPECIALLY DESIGNED BLADES THAT CAUSE THE INCOMING AIR TO SPIN

•

ONLY THE PURIFIED AIR GOES TO THE AIR FILTER

TURBO II PRECLEANER OPERATION NOTE: Remove the precleaner every 500 hours and use a mechanics mirror to inspect the spinner assembly, check to ensure the spinner arms are not worn and the spinner blades are intact. In high dust conditions and especially abrasive dust and dirt the spinner arms and blades may wear rapidly.

TURBO 2

If wear is noticed replace the spinner assembly immediately.

726D-008

UNLOADER VALVE

AIR CLEANER UNLOADER VALVE

AIR CLEANER UNLOADER VALVE This rubber valve on the body of the air cleaner housing should be checked before every shift (8 hours). If this valve is missing, damaged or has turned hard, it will cause the air cleaner to become ineffective. The valve should suck closed at 1/3 throttle.

3.24

Tigercat M726E Mulcher

Lubrication and Maintenance

This valve should be replaced every 1000 hours or when damaged. Remove the unloader valve from the tube of the air cleaner housing. Check and clean the valve. A good valve is soft and flexible. If plugged, be sure to check the filter elements as they may need replacing as well.

Reattach the valve to the body.

• SAFETY ELEMENT

When operating in high dust conditions, the unloader valve should be checked and squeezed every 2 hours to release dust buildup.

In addition to the LUBRICATION AND MAINTENANCE SCHEDULE outlined in THIS SECTION, the following instructions should also be noted: The most common and damaging servicing problems are:

•

OVER SERVICING Filter elements increase in dust cleaning efficiency as dust builds up on the media. Looks can be deceiving. A filter that looks dirty may actually be 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 engine manufacturer's guidelines, should a filter be replaced.

NOTE: This does not apply to hydraulic oil or diesel engine oil filters.

SERVICING Engine exposure to dust during servicing is a large reason for engine damage due to dust.

Abrasive dust can easily enter the intake system once the air cleaner cover and protective filter element are removed for replacement. The safety element does reduce this risk but it should also be replaced at every third primary element change.

AIR CLEANER .PLT

PRIMARY ELEMENT

AIR FILTER ELEMENTS

IMPORTANT STEPS TO FOLLOW WHEN CHANGING FILTER ELEMENTS 1. Release the cover latch gently to reduce the amount of dust dislodged.

2. Avoid dislodging dust from filter element(s) by gently pulling the element off the outlet tube.

3. Check your old filter sealing surfaces, This will help detect foreign material on the sealing surface that is causing leakage.

NOTE: Filter elements should never be cleaned and reused. 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.

4. Always clean the inside of the outlet tube.

5. Always clean the sealing surface of the outlet tube before inserting a new filter element.

6. Inspect the new filter for damage.

7. Insert the new filter properly. Apply pressure to the outer rim of the filter not the flexible centre.

8. Check connections and ducts for an air tight fit. Ensure that all clamps, bolts and connections are tight. Check rubber elbows for splits or wear points. Leaks in these locations send dust directly to the engine.

3.25

Tigercat M726E Mulcher

Lubrication and Maintenance

PRESSURIZED WATER SYSTEM MAINTENANCE

FILL & CHARGE PRESSURIZED WATER SYSTEM

OPERATION:

1. Open water shut off valve and completely discharge all water and compressed air from the tank via the hose end nozzle.

Turn the hand operated ball valve (shut off valve) under the seat to the ON position to draw water from the 10.5 USgallon (39.7 liter) 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, under the operator's seat.

HOSE

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.

WATER SHUT OFF VALVE (SHOWN CLOSED)

9

••

196-16A

••

TANK FILL PLUG

•

•

PRESSURIZED WATER SYSTEM CONTROL VALVE (UNDER SEAT)

The pressure gauge on the side of the seat should read 60 psi.

AIR CHARGE VALVE

PRESSURE GAUGE

M726E-022

• M726E-036

PRESSURIZED WATER TANK

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 water shut off valve.

PRESSURIZED WATER SYSTEM

Refer also to FIRE PREVENTION in SECTION 1 of THIS MANUAL.

4. Fill tank with water. Tank capacity is approximately 10.5 USgallons (39.7 liters)

SYSTEM TEST: This system should be tested once every month 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 4.14 Bar / 60 psi) the system needs to be PURGED. Refer to PURGING PRESSURIZED WATER SYSTEM in THIS SECTION.

When temperatures below 0°C (32°F) are anticipated, use a 60/40 solution of Nontoxic R. V. Antifreeze or other suitable antifreeze.

Antifreeze solution must meet GM 6038M specifications.

NOTE: Most Nontoxic RV Anti freeze solutions contain corrosion and algae inhibitors, it is therefore suggested that this solution be added to the water on a continual basis regardless of temperature conditions.

After testing, the tank must be refilled and 5. Install fill plug in tank. pressurized to 4.14 Bar / 60 psi. Refer to the NOTE: This is a special plug designed to following FILL AND CHARGE procedure. This FILL withstand pressurization of the water tank. Do AND CHARGE procedure should be carried out not substitute. yearly.

3.26

Tigercat M726E Mulcher

Lubrication and Maintenance

6. Pressurize the system to 4.14 Bar / 60 psi as indicated on pressure gauge by connecting an air hose to air charge valve beside the pressure gauge.

PURGING PRESSURIZED WATER SYSTEM

7. Open the water shut off valve

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 4.14 Bar/60 psi.

8. Discharge about 1/2 US gallon (2 liters) of fluid into an empty antifreeze jug or other suitable container.

1. Open water shut off valve and completely discharge all water and compressed air from the tank via the hose end nozzle.

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.

CAUTION Never remove fill plug before depressurizing 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.

9. Check fluid in the jug for contamination. If fluid is dirty dispose of it properly.

10. Close the water shut-off valve.

11. Release pressure and fluid from the hose.

12. Pressurize the system to 4.14 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.

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 shut off valve and add 2 USgallons (8 litres) of clean water to the tank.

4. Install fill plug in tank.

NOTE: This is a special plug designed to withstand pressurization of the water tank. Do not substitute.

5. Pressurize the system to 4.14 Bar/60 psi as indicated on pressure gauge by connecting an air hose to air charge valve beside the pressure gauge.

6. Open the shut off 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 & CHARGE PRESSURIZED WATER SYSTEM in THIS SECTION.

3.27

Tigercat M726E Mulcher

Lubrication and Maintenance

CHECKING THE AIR CONDITIONING SYSTEM

A/C COMPRESSOR

Any service work must be performed by authorized A/C technicians. The system should be charged with R134a refrigerant only. PAG (polyalkeylene glycol) oil should be present in the system and must be used on 'O' ring fittings during assembly.

SERPENTINE BELT

A/C SYSTEM TOTAL CAPACITIES PAG OIL R134a REFRIGERANT (polyalkylene glycol) 1.23 kg (2.75 lbs)

••

0.2 kg (7 oz)

The compressor and charge valves and receiver drier are accessed from the left side engine compartment. The evaporator core is accessed on the left hand side of the machine.

••

BELT TENSIONER

Use this checklist to maintain system between service intervals. a. Check compressor drive belt tension. b. Check air intake filters and clean as required.

M726E-035

CHECK SERPENTINE BELT

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 5 minutes every 2 weeks. This will circulate oil to all components of the A/C system.

CAUTION Use compressed air for cleaning only when the machine is cold to avoid the risk of fire caused by debris contacting hot surfaces.

If using compressed air for cleaning, use at 2.07 Bar (30 psi) or less.

Always use personal protective equipment to guard against flying debris

CHECK A/C CONDENSER CORE Check the condenser core for dirt and debris.

Clean as required. Refer to CLEANING A/C CONDENSER AND COOLING ASSEMBLY in SECTION 2 of the OPERATOR'S MANUAL.

726D-031

c.

CAUTION

d. Check the evaporator core and the inside of the A/C housing for dirt and debris. Clean as required.

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 that debris removed from one area of the machine does not accumulate on other areas of the machine.

e. Run air conditioning system for 3 - 5 minutes. f.

Check to see that compressor clutch will engage.

3.28

Tigercat M726E Mulcher

Lubrication and Maintenance

CENTER JOINT

TRANSMISSION:

MAINTENANCE OF CENTER JOINT Maintenance in this area is usually limited to:

By carefully following these procedures, the service life of the transmission will be extended and costly down time will be avoided.

a) Regular lubrication of the two center joint grease fittings to purge the pivot bearings of debris and water. Refer to SERVICE AND LUBRICATION POINTS in THIS SECTION for lubrication intervals. Use only high quality, lithium based EP2 grease containing molybdenum disulphide.

For additional information, refer to TRANSMISSION in SECTION 8 of the SERVICE MANUAL. TRANSMISSION OIL LEVEL DIPSTICK

b) Visually checking 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 center joint.

TRANSMISSION OIL FILL PLUG

1. Have operator lift the attachment off the ground and then rapidly raise and lower the head several times to "bounce" machine.

M726E-013

2. As machine bounces, check for motion between the front and rear chassis frame lugs. Also check for a "clunking" sound at the center joint area.

••

•

•

CHECK TRANSMISSION OIL LEVEL 762M3501 TO 726M3560

DIP STICK & TUBE

TRANSMISSION

••

••

724E-079

REAR CHASSIS

TWO SPEED TRANSMISSION (726M3561 AND UP) CHECK OIL LEVEL FRONT CHASSIS

CHECK FOR MOVEMENT IN THIS JOINT AREA

724D-D11

Check oil level at end of every 8 hour shift.

Procedure: • Park on level ground, lower attachment, set parking brake on and turn off engine.

1000 HOUR CHECK

3. Movement between front and rear chassis lugs or clunking of the pivot indicates a loose joint and preload must be checked.

Refer SECTION 11 of the SERVICE MANUAL for more information..

•

Clean dirt and debris from around oil dipstick and check oil level.

•

If required: add the recommended grade of oil through oil fill plug located on top of transmission housing.

Do not overfill.

3.29

Tigercat M726E Mulcher

Lubrication and Maintenance

START-UP PROCEDURE AFTER MAJOR MACHINE MAINTENANCE

NOTE: If the axles were drained of oil, refer to FILLING THE AXLES in this SECTION and in SECTION 8 of THE SERVICE MANUAL.

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.

•

If the engine fuel supply has been disconnected or drained, refer to priming fuel system procedure in the engine manufacture's maintenance 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.

• Proceed to MACHINE START-UP procedure.

PRE-STARTUP AND FILLING 1. Check oil levels in the engine, the pump drive gearbox and the transmission.

2. Check coolant level in the radiator.

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 engage parking brake.

5. Do not start engine. Purge air from hydraulic system as follows: •

Ensure all filters are in place.

CASE DRAIN HOSE

••

M726E-026

REMOVE CASE DRAIN HOSE

•

Remove the top case drain port hose of the cutter pump. This port will assist in venting air as hydraulic oil is filling the system components. Reinstall the hose when hydraulic oil free of air begins to flow out the port.

•

Fill the hydraulic tank if it has been drained.

•

Fill all the pumps and motors with prefiltered hydraulic oil through the highest case drain ports and close the ports.

3.30

Tigercat M726E Mulcher

Lubrication and Maintenance

MACHINE START-UP

NOTE: If charge pressure gauge dose not indicate a rise in pressure, check for possible cause (air in system, leaks, loose hose fittings, pumps not turning, etc.). Repair problem.

Repeat step 5 until a rise in charge pressure is noticed.

Before beginning this procedure, perform the PRE START-UP AND FILLING steps.

NOTE: When the saw head is attached, re-torque all teeth (See saw manual). Attach the SAW BLADE GUARD and insert the SAW BLADE LOCKING PIN.

7. Start engine. If charge pressure does not rise within 20 to 30 seconds, TURN ENGINE OFF. If charge pressure is between 18-31 Bar (260-450 psi.), run engine at IDLE for 20 minutes. Check engine oil pressure in cab.

Do not operate any functions.

1. Ensure the articulation lock bar is installed.

DISCONNECT THE POWER PLUG FROM THE ENGINE CPU

8. With engine at IDLE, parking brake ON, hold foot brake down, bleed brakes in rear axle.

••

726E-001

2. Disconnect the engine CPU POWER connector (prevents engine starting).

9. On machines 726M3501 to 726M3602 and 726M3605, hold both differential locks ON and run engine at IDLE for 30 minutes to purge air and fill axles with oil (axles fill with leakage from diff. locks). If wheels are not on, operate forward and reverse pedals very slowly with differential locks on to fill axles with oil.

INSTALL A 0-1000 PSI. GAUGE AT ‘G’ PORT.

DRIVE PUMP

••

M726E-009

6. Reconnect engine CPU POWER connector.

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.

DRIVE PUMP 'G' TEST PORT CONNECTION

CRANK ARM

3. Install a 0-70 Bar (0-1000 psi.) gauge on drive pump to check charge pressure at ‘G’ port.

Watch gauge closely.

LINK ARM

• •

CAUTION Machine operator must ONLY take directions from the person doing the set-up.

4. Close cab doors, turn ignition key switch to the 'ON' psition and depress the pilot reset switch.

This will allow pilot oil to circulate and refill the pilot and case drain circuits during the following cranking procedure.

5. Crank engine for 5 seconds, wait for 5 seconds. Check charge pressure gauge during cranking to observe for pressure reading.

Repeat 5 times to pump oil into pumps and system components.

• BOOM ARM

• 718E-028

CRANK, LINK AND BOOM ARMS

10. Set throttle to IDLE and run each BOOM function for 2 minutes at LOW pressure to purge air from circuit.

3.31

Tigercat M726E Mulcher

Lubrication and Maintenance

NOTE: If the machine was on wheels, the steer and drive functions were not properly purged or flushed. Remove the articulation lock bar and at LOW IDLE, slowly operate the steer function right and left a few times. With the parking brake released and at LOW IDLE, slowly operate the drive function forward and reverse a few times.

OIL FILL SHUT OFF VALVE

11. Set throttle to FULL and run each function again for 2 minutes to flush circuit.

HAND FILL PUMP

12. Set throttle to idle and shut engine off.

•• •

724E-024

HAND FILL PUMP

15. If required, top up the hydraulic oil reservoir with clean hydraulic oil using the hand fill pump.

16. Remove gauge from 'G' test port on drive pump. Clean up any spilled oil.

NOTE: If possible, allow the machine to stand for 4 to 6 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.

195-17

CHECK ENGINE COOLANT LEVEL

13. Top up the radiator with clean coolant.

HYDRAULIC OIL RESERVOIR

17. Recheck hydraulic oil level and top up if required.

18. Refer to appropriate section of the service manual to check and set operating pressures.

• SIGHT GAUGE HYD. OIL LEVEL

••

SENDING UNIT LOW HYDRAULIC OIL

• 724E-026

HYDRAULIC OIL RESERVOIR

14. With cylinders fully retracted, check hydraulic oil level.

3.32

Tigercat M726E Mulcher

Lubrication and Maintenance

REPLACING THE ENGINE SERPENTINE BELT 1. Park the machine on level ground. Parking brake ON, attachment resting on the ground and engine off. Turn battery disconnect switch OFF.

SERPENTINE BELT

• •• BELT TENSIONER

M726E-035

REMOVING SERPENTINE BELT

2. Install a Johnson bar with a 3/8" square drive in the square socket hole of the belt tensioner.

3. Loosen belt tensioner and remove the serpentine belt.

4. Replace the serpentine belt. Ensure that all of the ribs on the serpentine belt align with the grooves on the engine pulleys.

3.33

Tigercat M726E Mulcher

Lubrication and Maintenance

MIDDLE AND REAR DRIVE SHAFT 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 drive shaft 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.

•

1

•

726M-012

The most common cause of joint and slip spline failure is lack of proper lubrication.

REAR SLIP SPLINE

726M-009

REAR SLIP SPLINE LUBRICATION 4. Apply grease to grease nipple (1) until new, clean grease appears at the relief hole at yoke end of slip spline, FIG. 'C'.

5. Plug or cover relief hole and continue to apply pressure to grease nipple until new, clean grease appears at slip spline seal.

2

•• •

726M-008

6. If grease does not appear at slip spline seal and continues to exit from the covered relief hole, remove the drive shaft and inspect for "hardened" grease build up, rust or other contaminants within the drive shaft. Repair or Replace drive shaft.

1

MIDDLE SLIP SPLINE

MIDDLE SLIP SPLINE LUBRICATION

GREASE GUN

1. Park machine on level ground, and steer fully to the right. Lower attachment to the ground.

Set parking brake ON. 2. Stop the engine.

•

3. Apply grease to grease nipple (1) until new, clean grease exits from the relief fitting (2).

• •

1

2

726M-011

Check to see if grease is exiting from the relief fitting (2). 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.

If grease does not exit from the relief fitting hole, remove drive shaft and inspect for "hardened" grease build up, rust or other contaminants within the drive shaft. Repair or Replace drive shaft.

3.34

GREASE APPEARS AT RELIEF HOLE 720C-01

FIG. 'C' REAR DRIVE SHAFT YOKE END

Tigercat M726E Mulcher

Lubrication and Maintenance

MACHINES SERIAL NUMBER 726M3501 TO 726M3602 AND 726M3605

Torque drive shaft yoke (universal Joint) fasteners to the following torque: FRONT DRIVE SHAFT

• 6-C (3/8” - 24 UNF) 37 lbf/ft (50 Nm) lubricated

REAR DRIVE SHAFT

• •• ••

MIDDLE DRIVE SHAFT 724E-016 724E-042 724E-043 724E-044

DRIVE SHAFT INSTALLATION - TWO SPEED TRANSMISSION SINGLE MOTOR 3.35

Tigercat M726E Mulcher

Lubrication and Maintenance

MACHINES SERIAL NUMBER 726M3603 TO 726M3604 AND 726M3611 AND UP Torque drive shaft yoke (universal Joint) fasteners to the following torque: • 6-C (3/8” - 24 UNF) or (M10 - 1.5) 37 lbf/ft (50 Nm) lubricated FRONT DRIVE SHAFT

REAR DRIVE SHAFT

•• •• •

MIDDLE DRIVE SHAFT

DRIVE SHAFT INSTALLATION - TWO SPEED TRANSMISSION SINGLE MOTOR 3.36

Tigercat M726E Mulcher

Lubrication and Maintenance

SPEED CONTROL LEVER ADJUSTMENT The friction setting on the speed control lever is variable and can be adjusted to allow proper operation.

The friction setting on the speed control lever may require adjustment, during normal operation, to maintain the set position of the lever, especially at maximum throw.

FRICTION SETTING PROCEDURE Before starting work, read and follow all servicing safety precautions in SECTION 1 of THIS MANUAL. 1. Park machine on level ground, apply parking brake, lower attachment to ground, shut off engine.

2. Position the speed control lever in the neutral position (pointing straight up).

M724D-02

3. Raise the protective rubber ‘boot’ from the speed control valve body.

SPEED CONTROL LEVER

4. Locate the adjustable friction set screw.

5. Tighten the adjustable friction set screw as required (2.5mm hex key)

SPEED CONTROL LEVER

6. Replace the protective rubber ‘boot’ over the speed control valve body.

• PROTECTIVE RUBBER BOOT

• ADJUSTABLE FRICTION SET SCREW

•• ••

630B-31

3.37

CONTROL PANEL

SPEED CONTROL LEVER FRICTION SET SCREW LOCATION

Tigercat M726E Mulcher

Lubrication and Maintenance

FAN CONTROL

The temperature sensor in the hydraulic tank operates in a similar manner to the engine coolant temperature sensor but independently and with a different temperature range of (See COOLING SET POINTS).

ELECTRONIC CONTROLLER

••

724E-025

This sensor will signal the electronic control module to turn the fan ON at (See COOLING SET POINTS). As the temperature of the hydraulic oil increases, the speed of the fan will also increase to a maximum 2200 rpm fan speed @2200 rpm engine speed, at this point the temperature of the hydraulic oil will be (See COOLING SET POINTS), of higher.

COOLING SET POINTS CONTROLLER PLUS ONE

ELECTRONIC FAN CONTROLLER WIRING

Charge Air Min Charge Air Max Engine Coolant Min Engine Coolant Max Hydraulic Oil Temp Min Hydraulic Oil Temp Max

50°C 84°C 85°C 96°C 49°C 71°C

(122°F) (183°F) (185°F) (205°F) (120°F) (160°F)

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 turn the cooling fan to run at 1200 rpm. This is to ensure that sufficient air flow is available for the cab A/C even while the machine is still warming up.

720D-052

ELECTRONIC CONTROLLER This control consists of an electronic processing module, a three position FAN switch in the operator's cab with CLEAN/AUTO/FULL ON* positions for fan control.

CAUTION Before placing the fan switch in the CLEAN (PURGE) position make sure that there are no personnel on the left side of the machine in the area where the fan will expel debris

••

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.

FAN SWITCH

M726E-003

FAN SWITCH

When the engine coolant temperature reaches 85°C (185°F) the sensor on the engine in conjunction with the electronic control module will send 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 2200 rpm fan speed @2200 rpm engine speed. As the temperature of the coolant increases so does the speed of the fan up to the maximum 2200 rpm fan speed @2200 rpm engine speed. At this point the engine coolant temperature will be 96°C (205°F), or higher.

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.

3.38

3.39

•

•

•

•

•

•

•

•

12

13

14

15

16

17

18

19

1 sec

1 sec

1 sec

1 sec

1 sec

1 sec

1 sec

1 sec

•••••••

Cutter Control Valve Pilot Solenoid Fault

Attachment pump will turn off and will not turn on.

x

x

x

x

Electronic Saw gauge in cab will not operate correctly.

Pressure transducer has malfunctioned or has become disonnected and no signal is present. Check the signal wire from the transducer. When the transducer is given 5V sensory power, 0.5 V should be present at the signal wire at 0 psi.

Saw Pressure Sensor Fault

x

x

Speed sensor has malfunctioned or blade has not turned for an extended period of time with the cutter on.

Check that saw blade turns when cutter is on. Check connection between speed sensor and controller.

Check speed sensor ground. Check speed sensor for proper installation and operation.

Saw blade will retract for a specified length of time and will not stop when it passes the blade proximity sensor or blade will Intermittent saw blade proximity sensor has failed, come out of adjustment or become disconnected. Check not fully retract automatically. Manual retract button may be sensor and sensor position, remove debris, check sensor connections. used to fully retract saw blade.

x

Saw blade speed has exceeded the saw max speed set point. Check saw speed and adjust BODC screw on saw motor if necessary. Check flow to saw motor in saw mode.

Intermittent Saw Blade Proximity Sensor Fault

x

Mode selector switch is in the incorrect position or the electrical boom connector is not connected. Place mode selector switch in the correct mode or connect boom eletrical connector and turn cutter on. Check connections between attachment and controller. Check resistance of attachment ID connector inside attachement.

Attachment pump will turn off and will not turn on.

Attachment pump will turn off and will not turn on.

Attachment pump will not turn on.

x

Current is out of operating range. Check connections between attachment pump coil and controller. Check coil ground connections.

M726E

Saw Blade Speed Sensor Fault

Saw Blade Overspeed

Incorrect Cutter Mode Selected

(Only when fault code is active) Attachment pump will turn off and will not turn on.

Current is out of operating range. Check connections between cutter control pilot solenoid and controller.

Check cutter control solenoid ground connections.

Current is out of operating range. Check connections between intermittent saw blade extend valve coil Intermittent saw blade may not extend. Controller will • • • • • • • • Intermittent Saw Blade Extend Valve Coil (locted in intermittent saw head) and controller. Check solenoid ground connections. continue to send current to extend valve coil.

Intermittent saw blade may not retract. Controller will continue Current is out of operating range. Check connections between intermittent saw blade retract valve coil • • • • • • • • • Intermittent Saw Blade Retract Valve Coil (locted in intermittent saw head) and controller. Check solenoid ground connections. to send current to retract valve coil.

••••••

•••••

••••

•••

••

Attachment Pump Displacement Control Coil

(Fault Location)

•

ELECTRONIC CONTROL MODULE

1 sec

(To diagnose fault)

POSSIBLE CAUSE / SOLUTION

RED LED

•

EFFECT

GREEN LED

11

The following charts can be used for BLINK CODE TRANSLATION AND DIAGNOSTICS.

(Flash Bit Sequence)

The electronic control module has two LED lights on the front top left side of the controller. A GREEN LED is used to indicate that power is ON and the controller is activated. The RED LED is used to provide a visual warning in the form of BLINK CODES whenever the controller senses a fault in the system.

DESCRIPTION

M726E-010

"RED LED"

••

FAULT CODE

ELECTRONIC CONTROL MODULE BLINK CODES

PLUS1 CONTROLLER FAULT CODE INFORMATION

Tigercat M726E Mulcher Lubrication and Maintenance

BLINK CODE TRANSLATION / DIAGNOSTICS

3.40

•••••

•••••

53

54

1 sec

1 sec

1 sec

1 sec

1 sec

1 sec

1 sec

1 sec

1 sec

1 sec

1 sec

••••

•••

••

•

••••••••

•••••••

••••••

••••

•••

••

•

Fan runs at full speed forward. Fan will not automatically reverse and Current is out of operating range. Check connections between relay and controller. Check relay ground controller will send SPN 977 FMI 11 Fan Controller Fault to the Engine connections. Check relay. diagnostic display.

(To diagnose fault)

POSSIBLE CAUSE / SOLUTION

Boom Float Down Pressure Control Coil Fault Boom Float may default to max down pressure.

x

x

x

Boom float blocking valve is faulty or has become disconnected. Check connections between the coil and the controller. Check coil ground connections.

Current is out of operating range at the boom lift pilot pressure reducing/relieving valve coil. Check connections between the coil and the controller. Check coil ground connections.

Current is out of operating range at the boom float manifold down pressure control valve coil. Check connections between the coil and the controller. Check coil ground connections.

x

2) If multiple faults are present a 5 second delay will separate the Fault Code Sequences.

"RED LED" and "GREEN LED" will flash momentarily when master disconnect is switched from "off" to "on"

"GREEN LED" ON Steady indicates System is Activated/ON

x

Current is out of operating range. Check connections between attachment pump coil and controller. Check coil ground connections.

Attachment pump will default to max pressure setting.

Boom Float Manifold Float Enable Blocking Valve Coil Boom Float may not turn on or will function eratically.

Fault Boom Float Lift Pressure Boom Float may not function correctly, boom will not float up with a Reducing/Relieving Valve Coil rise in terrain.

Fault

Attachment Pump POR Control Coil

Coolant has reached/exceeded Overheat Set Point. Decrease coolant temp to below overheat set point.

x

x

Fan runs at full speed forward. Fan will not automatically reverse.

Engine Coolant Overheat Condition

Engine J1939 not present or Faulted. Check that J1939 backbone is in good condition, all resistors and connectors are properly connected.

x

x

x

x

M726E

Fan runs at full speed forward. No effect on automatic reverse. Engine Hydraulic Oil has reached/exceeded Overheat Set Point. Decrease hydraulic oil temp to below overheat set point. diagnostic display reads fault code SPN 441 FMI 0

Fan runs at full speed forward controller and will send SPN 977 FMI 11 Fan Controller Fault to the Engine diagnostic display. Fan will not automatically reverse.

Hydraulic Overheat Condition

Current is out of operating range at the fan reverse coil. Check wire connections between the reverse coil of fan pump and the controller (720/724D). Check connections at reverse coil of fan valve and the controller (724E/726D/M726D). Check ground connect

Fan runs at full speed forward and controller will send SPN 977 FMI Resistance is out of operating range at hydraulic oil temprature sender. Check connection between the 11 Fan Controller Fault to the Engine diagnostic display. Fan will not hydraulic temperature sender and controller and replace hydraulic oil temperature sender if necessary. automatically reverse.

Fan will try to continue to perform as normal. If the fault is detected more than 3 times in 10 minutes; fan will run at full speed forward, not automatically reverse and controller will send SPN 977 FMI 11 Fan Controller Fault to the Engine diagnostic display.

J1939 CAN BUS Fault

Hydraulic Oil Temperature Sender out of range

Fan Reverse Coil is out of operating range

Fan will try to continue to perform as normal. If the fault is detected Fan Proportional Coil is out of more than 5 times in 10 minutes; fan will run at full speed forward, not Current is out of operating range at fan valve proportional coil. Check connections between proportional coil of operating range. automatically reverse and controller will send SPN 977 FMI 11 Fan fan valve and controller. Check ground connections.

Controller Fault to the Engine diagnostic display.

A/C OFF Output Relay is out of operating Range

EFFECT (Only when fault code is active)

NOTES : 1) To clear fault codes from controller, turn master disconnect switch "off", wait 15 secs, and turn "on". If fault persists see Possible Cause/Solution.

•••••

••••

47

52

••••

46

•••••

••••

44

51

••••

43

••••

••••

42

48

••••

DESCRIPTION

(Fault Location)

"RED LED"

(Flash Bit Sequence)

41

FAULT CODE

PLUS1 CONTROLLER FAULT CODE INFORMATION

Tigercat M726E Mulcher Lubrication and Maintenance

BLINK CODE TRANSLATION / DIAGNOSTICS

Tigercat M726E Mulcher

Lubrication and Maintenance

TORQUE CHART LOCATION

THREAD DIAMETER

Cylinders Pin bolts Piston nut, steer cyl.

Piston nut, boom/tilt cyl.

Gland, steer cyl.

Keeper plate bolts

TORQUE (LUBRICATED) lbf-ft Nm

3/4" UNC 1 1/4" UNF 1 1/2" UNF 3/4" UNC

282-310 930 1640 450 282-310

393-420 1282 2260 620 389-420

1/2" UNC 3/4" UNC

80-88 282-310

109-119 393-420

Engine mounting Bolts, mount to chassis Bolts, brackets to engine Bolts, bracket to pump drive

7/8" UNC M12-1.75 (10.9) 5/8" UNC

364 75 159-175

500 100 216-237

Pump drive gearbox Drive plate to flywheel Bell housing to CUMMINS engine

M10 x 1.5 (10.9) M10 x 1.5 (10.9)

32 32

43 43

1 1/4" x 18 UNEF 3/4" UNC

475-525 357

644-711 484

1/2" UNF 1/2" UNF 3/8" UNF

120-132 120-132 37-49

163-179 163-179 50-66

Axle mounting bolts Front Rear

7/8" UNC 3/4" UNC

364 226

500 310

Wheel bolts

7/8" UNF

500-550

679-745

Transmission housing to frame

7/8" UNC

364

500

Center joint bearing Bearing retaining bolts Pin retaining bolts

Drive shafts Yoke retaining nut, front shaft Pillow block retaining bolts Universal joint bolts Rear & Mid. drive shaft Front drive shaft to Mid. drive shaft Front drive shaft to axle

Torque values pertaining to the engine and attachment are provided in the appropriate manuals.

724D-TORQUECHART.XLS

3.41

Tigercat M726E Mulcher

Lubrication and Maintenance

GENERAL TORQUE SPECIFICATIONS 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.

IMPERIAL GRADE 8 BOLTS

GRADE 5 BOLTS

IMPERIAL BOLT TORQUE SPECIFICATIONS GRADE 5 BOLTS GRADE 8 BOLTS 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" - 14 1 1/8" - 12 1 1/4" - 12

DRY lbf-ft Nm 11 - 12 15 - 16 26 - 30 35 - 40 44 -48 60 - 65 70 - 77 95 - 104 106 - 117 144 - 158 153 - 168 208 - 228 212 - 233 288 - 316 376 - 414 510 - 561 606 - 667 822 - 904 909 - 1000 1233 - 1355 1288 - 1417 1746 - 1921 1817 - 1999 2464 - 2710 DRY lbf-ft Nm 13 - 14 18 - 19 23 - 28 31 - 38 49 - 54 67 - 73 78 - 86 106 - 116 120 - 132 163 - 179 171 - 188 232 - 255 240 - 264 326 - 358 420 - 462 570 - 626 668 - 735 906 - 996 995 - 1096 1359 - 1486 1445 - 1590 1960 - 2155 2012 - 2213 2728 - 2997

LUBRICATED lbf-ft Nm 8 - 10 11 - 13 20 - 28 27 - 38 33 - 36 45 - 49 52 - 57 71 - 77 80 - 88 109 - 119 115 - 127 156 - 172 159 - 175 216 - 237 282 - 310 393 - 420 455 - 501 617 - 679 682 - 750 925 - 1016 966 - 1062 1310 - 1441 1360 - 1496 1844 - 2027 LUBRICATED lbf-ft Nm 10 - 13 14 - 17 18 - 25 25 - 33 37 - 41 50 - 55 58 - 64 79 - 86 90 - 99 122 - 134 128 - 141 174 - 191 180 - 198 244 - 268 315 - 347 427 - 470 501 - 550 679 - 745 746 - 821 1012 - 1113 1083 - 1191 1469 - 1613 1509 - 1660 2046 - 2250

DRY LUBRICATED COARSE lbf-ft Nm lbf-ft Nm THREAD 1/4" - 20 7- 8 10 - 11 8 - 10 11 - 13 5/16" - 18 14 - 18 19 - 24 10 - 15 13 - 20 3/8" - 16 31 - 34 42 - 46 23 - 25 31 - 34 7/16" - 14 49 - 54 66 - 73 37 - 41 50 - 55 1/2" - 13 75 - 83 102 - 112 57 - 63 77 - 85 9/16" - 12 109 - 120 148 - 162 82 - 90 111 - 122 5/8" - 11 150 - 165 204 - 223 113 - 124 152 - 168 3/4" - 10 266 - 293 360 - 397 200 - 220 271 - 298 7/8" - 9 394 - 433 535 - 586 296 - 326 402 - 441 1" - 8 591 - 649 802 - 879 443 - 489 601 - 663 1 1/8" - 7 794 - 873 1077 - 1183 596 - 656 808 - 889 1 1/4" - 7 1120 - 1232 1519 - 1670 840 - 924 1139 - 1252 FINE DRY LUBRICATED lbf-ft Nm lbf-ft Nm THREAD 1/4" - 28 9 - 10 12 - 13 9 - 10 12 - 13 5/16" - 24 17 - 22 23 - 29 16 - 20 21 - 27 3/8" - 24 35 - 39 48 - 53 26 - 29 35 - 39 7/16" - 20 55 - 61 75 - 83 41 - 45 56 - 61 1/2" - 20 85 - 94 116 - 127 64 - 70 87 - 95 9/16" - 18 121 - 133 164 - 180 91 - 100 124 - 135 5/8" - 18 170 - 187 231 - 253 128 - 141 174 - 191 3/4" - 16 297 - 327 403 - 443 223 - 245 303 - 332 7/8" - 14 434 - 477 589 - 646 326 - 359 442 - 486 1" - 14 646 - 711 876 - 965 484 - 534 657 - 724 1 1/8" - 12 891 - 980 1208 - 1328 668 - 735 906 - 996 1 1/4" - 12 1240 - 1364 1682 - 1849 931 - 1024 1262 - 1387

METRIC

METRIC BOLT TORQUE SPECIFICATIONS SIZE

CLASS 4.8 LUBRICATED DRY Nm lbf-ft Nm lbf-ft

CLASS 8.8 OR 9.9 LUBRICATED DRY Nm lbf-ft Nm lbf-ft

CLASS 10.9 LUBRICATED DRY Nm lbf-ft Nm lbf-ft

CLASS 12.9 LUBRICATED DRY Nm lbf-ft Nm lbf-ft

M6 M8 M10

4.8 12.0 23.0

3.5 8.5 17.0

6.0 15.0 29.0

4.5 11.0 21.0

9.0 22.0 43.0

6.5 16.0 32.0

11.0 28.0 55.0

8.5 20.0 40.0

13.0 32.0 63.0

9.5 24.0 47.0

17.0 40.0 80.0

12.0 30.0 60.0

15.0 37.0 75.0

11.5 28.0 55.0

19.0 47.0 95.0

14.5 35.0 70.0

M12 M14 M16

40.0 63.0 100.0

29.0 47.0 73.0

50.0 80.0 125.0

37.0 60.0 92.0

75.0 120.0 190.0

55.0 88.0 140.0

95.0 150.0 240.0

70.0 110.0 175.0

110.0 175.0 275.0

80.0 130.0 200.0

140.0 225.0 350.0

105.0 165.0 225.0

130.0 205.0 320.0

95.0 150.0 240.0

165.0 260.0 400.0

120.0 190.0 300.0

M18 M20 M22

135.0 190.0 260.0

100.0 140.0 190.0

175.0 240.0 330.0

125.0 180.0 250.0

260.0 375.0 510.0

195.0 275.0 375.0

330.0 475.0 650.0

250.0 350.0 475.0

375.0 530.0 725.0

275.0 400.0 540.0

475.0 675.0 925.0

350.0 500.0 675.0

440.0 625.0 850.0

325.0 560.0 460.0 800.0 625.0 1,075.0

410.0 580.0 800.0

M24 M27 M30

330.0 490.0 675.0

250.0 360.0 490.0

425.0 625.0 850.0

310.0 650.0 450.0 950.0 625.0 1,300.0

M33 900.0 M36 1,150.0

475.0 825.0 600.0 925.0 675.0 1,150.0 850.0 1,075.0 800.0 1,350.0 1,000.0 700.0 1,200.0 875.0 1,350.0 1,000.0 1,700.0 1,250.0 1,600.0 1,150.0 2,000.0 1,500.0 950.0 1,650.0 1,200.0 1,850.0 1,350.0 2,300.0 1,700.0 2,150.0 1,600.0 2,700.0 2,000.0

675.0 1,150.0 850.0 1,750.0 1,300.0 2,200.0 1,650.0 2,500.0 1,850.0 3,150.0 2,350.0 2,900.0 2,150.0 3,700.0 2,750.0 850.0 1,450.0 1,075.0 2,250.0 1,650.0 2,850.0 2,100.0 3,200.0 2,350.0 4,050.0 3,000.0 3,750.0 2,750.0 4,750.0 3,500.0

TORQUECHARTGENERAL.XLS

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Tigercat M726E Mulcher

Lubrication and Maintenance

PRESSURE SETTINGS M726E With hydraulic oil at operating temperature (120°F - 140°F) Location

Pressure (Bar)

Pressure (PSI)

Engine RPM

Engine RPM 1920 ± 25 High Idle 850 ± 25 Low Idle

Pilot Manifold Pressure Relief Valve Pressure Reducing Valve

46.5 38

675 550

850 850

Drive Pump - Single Motor Two Speed Charge Pressure Relief Valve Multi Function Valve: · P.O.R. Forward · P.O.R. Reverse · High Pressure Relief Forward · High Pressure Relief Reverse

31

450

1380

348.2 348.2 390 390

5050 5050 5650 5650

1800 1800

Drive Motor - Single Motor Two Speed Drive Motor P.O.R.

280

4050

1800

172.4 221 221

2500 3200 3200

1800 850 850

386 365.4

5600 5300

1200 1200

331 275

4800 4000

1200 1200

400 386

5800 5600

1200 1200

350 276

5075 4000

1200 1200

179.3 200 200 221 221 76 221 200 152

2600 2900 2900 3200 3200 1100 3200 2900 2200

1800 850 850 850 850 850 850 850 850

Steer Valve (Joystick Steering Only) Steer Valve Main Relief Steer Right Port Relief Steer Left Port Relief Attachment Pump - 726M3501 TO 7263600 Spike Relief (If equipped) Main Relief Pump P.O.R. - Mulcher Mode - Saw Mode (Remote P.O.R.) Attachment Pump - 726M3601 AND UP Spike Relief (If Equipped) Main Relief Pump P.O.R. - Mulcher Mode - Saw Mode Boom Valve Mid Inlet Main Relief Tilt In Port Relief Tilt Out Port Relief Accumulator Clamp Open Port Relief Accumulator Clamp Close Port Relief Clamp Open Port Relief Clamp Close Port Relief Boom Lift Port Relief Boom Lower Port Relief

IMPORTANT NOTES: ~ Boom support must be used part# 4128A ~ When performing tilt out function, without an attachment installed, do not allow crank arms to hit boom

PRESSURE SETTINGS R2

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Tigercat M726E Mulcher

Lubrication and Maintenance

Par ker ark

Assemb que Assemblly Tor orque 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 on to 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.

The 4-Bolt Split Flange consists of four main components: • A body (flange head) • An O-ring • One “captive” or two “split” flange clamps

• Four bolts and washer

WASHERS

•• •• •

BOLTS FLANGE CLAMP

Flange Port Assembly

FLANGE HEAD

•• •

The steps to properly assemble the flange port clamping bolts are: 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.

5. Hand tighten bolts.

6. Torque bolts in diagonal sequence (see Fig. T9) in small increments to the appropriate torque level listed in Table T6 or Table T7 on this page.

O-RING TAPPED HOLES

••

FLANGE.TIFF

Fig. T8 - 4 Bolt Split Flange Components

FLANGE2.TIFF

Fig. T9 - Flange Bolt Tightening Sequence

Dash Size

Flange Size

Inch Bolt (J518)

Torque ft. lbs.

Metric Bolt (ISO 6162)

Torque N-m

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

DASH SIZE 8 12 16 20 24 32 *

FLANGE SIZE 1/2 3/4 1 1 1/4 1 1/2 2 SO

INCH BOLT (J518) 5/16-18 3/8-16 7/16-14 1/2-13 5/8-11 3/4-10 f

TORQUE METRIC BOLT TORQUE FT LBS (ISO 6162) N-M 17 +/- 2 M8 25 30 +/- 4.5 M10 49 46 +/- 4.5 M12 85 69 +/- 6 M14* 135 125 +/- 8 M16 210 208 +/- 20 M20 425

* Does not meet ISO 6162 specification.

Table T7 - Code 62 Flange Recommended Bolt Torque

* Does not meet ISO 6162 specification.

Table T6 - Code 61 Flange Recommended Bolt Torque

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Tigercat M726E Mulcher

Lubrication and Maintenance

Par ker ark

Assemb que Assemblly Tor orque

JIC 37 Degree Flare SAE Dash Size

Tube Connection Swivel or Hose Connection FFWR FFWR

Thread Size

-2 -3 -4 -5 -6 -8 -10 -12 -14 -16 -20 -24 -32 -40

NPTF

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

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

O'ring Face Seal / Seal-Lok

-2 -3 -4 -5 -6 -8 -10 -12 -14 -16 -20 -24 -32 -40

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

BSPT

Tube Connection Swivel or Hose Connection FFWR FFWR

Thread 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

T.F.F.T. : Turns from finger tight All pipe values are for Steel, Stainless Steel and Brass

F.F.W.R : Flats From Wrench Resistance All values are for Steel, Stainless Steel and Brass

SAE Dash Size

Tube Connection Swivel or Hose Connection TFFT TFFT

Thread Size

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

Thread Size

Tube Connection Swivel or Hose Connection TFFT TFFT

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

Non-Adjustable Thread Size

Seal-Lok

ft. lbs (in. lbs) 5/16-24 (310) 3/8-24 (310) 7/16-20 (310) 1/2-20 (360) 9/16-18 (420) 3/4-16 60 7/8-14 100 1 1/16-12 135 1 3/16-12 175 1 5/16-12 200 1 5/8-12 250 1 7/8-12 305 2 1/2-12 375

N-m 20 20 20 40 46 80 135 185 235 270 340 415 510

Adjustable

Triple-Lok Ferulok Pipe Fittings ft. lbs (in. lbs) (85) (155) (260) (280) (350) (620) 85 135 175 200 250 305 375

N-m 10 18 29 32 40 70 115 183 237 271 339 414 509

Seal-Lok ft. lbs (in. lbs) (310) (310) (310) (360) (420) 60 100 135 175 200 250 305 375

N-m

3.45

20 20 20 40 46 80 135 185 235 270 340 415 510

Plugs

Triple-Lok Ferulok ft. lbs (in. lbs) (60) (100) (180) (250) (350) (620) 85 135 175 200 250 305 375

N-m 7 11 20 28 40 70 115 183 237 271 339 414 509

Hollow Hex HP5ON-S ft. lbs (in. lbs) (30) (55) (120) (170) (410) 60 100 135 175 200 250 305 375

N-m 3.5 6 13.5 19 46 80 135 185 235 270 340 415 510

Hex Head P5ON-S ft. lbs (in. lbs) (85) (155) (260) (280) (350) (620) 85 135 175 200 250 305 375

N-m 10 18 29 32 40 70 115 183 237 271 339 414 509

Tigercat M726E Mulcher

Lubrication and Maintenance

EATON Aeroquip

Assemb que Assemblly Tor orque

Recommended Parallel Connection Assembly torque

Eaton recommends that a

The values listed are for

Torque wrench be used to

steel connections. Contact

assure proper fitting

Eaton Aeroquip for torques values for

assembly of these

other materials

connections.

Straight Thread O-Ring Boss Low Pressure with 37º (SAEJ514) 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

Straight Thread O-Ring Boss High Pressure with ORS (J1453)

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

Dash Size -03 -04 -05 -06 -08 -10 -12 -14 -16 -20 -24

ORS

Dash Size -04 -06 -08 -10 -12 -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

Dash Size -04 -05 -06 -08 -10 -12 -16 -20 -24 -32

Metric Thread Size mm M10x1 M12x1.5 M14x1.5 M16x1.5 M18x1.5 M20x1.5 M22x1.5 M26x1.5 M27x2 M33x2 M42x2 M48x2

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

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Tigercat M726E Mulcher

Lubrication and Maintenance

Tigercat wire colour code chart applicable to all products manufactured by Tigercat Industries Inc. COLOUR Red Black White Blue Purple Tan Yellow Grey Brown Green Orange

FUNCTION EXAMPLE Power ........................................ (fused and unfused) Ground Engine control ........................... (fuel shut-off, start aid) Propulsion Control .................... (transmission/reverser solenoids) Monitor, electrical and mechanical systems .................. (air cleaner, alternator, wheel speed, engine speed) Electrical and electromechanical control ......... (park brake, alternator excitation) (power door motor, backup alarm) Monitors .................................... (flow, pressure, temperature, level) Standard monitor system .......... (logic module to monitor) Lights Electro-hydraulic control ........... (pilot solenoids) Accessories .............................. (horn, A/C, heater)

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Tigercat M726E Mulcher

Lubrication and Maintenance

Weights of Commercial Wood

Species

kg/m3

lb/ft3

Species

kg/m3

lb/ft3

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

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

46 48 43 51 42 54 50 58 36 45 28 56 27 45 49 55 36 54 28 45 30 48 36 47 45 70 50 56 50 41 62 63 48 58 49

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

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

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

Note: The values shown here are green weights.

3.48