Tigercat 620C SKIDDER OPERATOR'S MANUAL - PDF DOWNLOAD

OPERATOR'S MANUAL Tigercat 620C SKIDDER Issue 4.0, APRIL 2008 TABLE OF CONTENTS SECTION INTRODUCTION .............................................................................................................. iii SAFETY ............................................................................................................................ 1 CONTROLS AND OPERATION ........................................................................................ 2 LUBRICATION AND MAINTENANCE ............................................................................... 3

EARLIER MACHINES (6200501 TO 6200900)

IMPORTANT

12 VOLT ELECTRICAL SYSTEM LATER MACHINES (6200901 TO 6205000)

IMPORTANT

24 VOLT ELECTRICAL SYSTEM

620C-OM00

620C Available Literature Operator's Manual, English (This Manual) ......... Part No. 23823A Manual del Operador, Español .......................... Part No. 27754A Service Manual, English ..................................... Part No. 23824A Manual del Operador, Español ........................... Part No. 27755A Parts Catalog, English ........................................ Part No. 23822A

Tigercat

®

Tigercat Industries Inc. P.O. Box 544 Paris, Ontario Canada N3L 3T6 Tel: (519) 442-1000 Fax: (519) 442-1855

Tigercat 620C Skidder

Introduction

ii

Tigercat 620C Skidder

Introduction

Tigercat 620C Skidder INTRODUCTION An Operator's manual, Service manual and a Parts catalog are provided by Tigercat to assist the dealer, customer and operator in becoming familiar with the features of the 620C Skidder serial numbers 6200501 TO 6205000.

The operator's manual will assist the operator with the techniques of proper and safe operation of the Skidder. The service manual contains safety guidelines, a preventive maintenance schedule and servicing procedures to ensure optimum machine performance.

Section 1 in both the operator's manual and the service manual contains safety information that must be followed. As well, throughout the rest of the manuals 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.

iii

Tigercat 620C Skidder

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 modifications 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 possibility of operator injury from penetrating objects (OPS). When a permanent deflection of the structure occurs, the structure can no longer provide the original designed level of protection and should be replaced. Attempts to straighten the structure, particularly by the application of heat, can reduce still further the structures remaining capability to protect.

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

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

NOTICE OF CERTIFICATION

Tigercat Industries Inc.

THIS STRUCTURE MEETS THESE REQUIREMENTS OR RECOMMENDED PRACTICES MANUFACTURED BY

Tigercat Industries Inc. Paris, Ont., Canada

ROPS SAE J1040

MAY94

FOPS SAE J231

JAN81

OPS SAE J1084

APR80

Tigercat Model 620/630 MAXIMUM GROSS WEIGHT MANUFACTURERS CERTIFICATION NO.

47,000 lbs.

901099

6958A R03

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Tigercat 620C Skidder

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 safety 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 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 creating 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 suit 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 620C Skidder

Introduction

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Tigercat 620C Skidder

SECTION 1 - SAFETY MARCH 2008

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

Read and understand all manuals for any attachments or accessories.

CONTENTS - SECTION 1 BATTERY DISCONNECT SWITCH .............................................................. 1.8 BATTERY SAFETY ........................................................................................ 1.6 CAB EXITS .................................................................................................... 1.7 CAB SAFETY CABLE .................................................................................. 1.13 CAB SUPPORT BRACE .............................................................................. 1.13 COOLING SYSTEM ..................................................................................... 1.11 ELECTRICAL SYSTEM VOLTAGE ............................................................... 1.2 EMERGENCY CAB EXITS ............................................................................ 1.7 EXHAUST FUMES ....................................................................................... 1.15 FIRE PREVENTION ..................................................................................... 1.17 DRY CHEMICAL CLEANUP PROCEDURES ........................................... 1.21 FIRE PREVENTION GUIDELINES ........................................................... 1.17 WHAT TO DO AFTER A MACHINE FIRE HAS OCCURRED .................. 1.20 WHAT TO DO TO PREPARE FOR A MACHINE FIRE ............................ 1.18 WHAT TO DO WHEN A MACHINE FIRE OCCURS ................................ 1.19 FIRST AID ...................................................................................................... 1.4 FLUID INJECTION INJURY ......................................................................... 1.15 FLUID LEAKS .............................................................................................. 1.11 GREASE INJECTION INJURY .................................................................... 1.16 HYDRAULIC PRESSURE HAZARD ............................................................ 1.11 LOOSE CLOTHING HAZARD ..................................................................... 1.12 PARKING THE MACHINE ............................................................................. 1.8 PROTECTIVE CLOTHING ............................................................................. 1.3 SAFETY PRECAUTIONS, GENERAL ........................... 1.2, 1.3, 1.4, 1.5, 1.6 SAFETY PRECAUTIONS, OPERATING ....................................... 1.7, 1.8, 1.9 SAFETY PRECAUTIONS, SERVICING ...... 1.10, 1.11, 1.12, 1.13, 1.14, 1.15 SAFETY SYMBOLS ....................................................................................... 1.2 SIGNAL WORDS ........................................................................................... 1.2 VOLTAGE, ELECTRICAL SYSTEM .............................................................. 1.2 WELDING, PRIOR TO ................................................................................. 1.10 WORKING WITH OIL .................................................................................... 1.4

Tigercat 620C Skidder

Safety

GENERAL SAFETY PRECAUTIONS

SAFETY SYMBOLS

Please note the voltage of electrical system in use on the machine you are operating or servicing.

EARLIER MACHINES (6200501 TO 6200900)

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

12 VOLT

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.

ELECTRICAL SYSTEM LATER MACHINES (6200901 TO 6205000)

Understanding Signal Words

IMPORTANT

24 VOLT

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

ELECTRICAL SYSTEM Remember that safety is a prime responsibility of all.

WARNING

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.

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

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

CAUTION

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

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

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Tigercat 620C Skidder

Safety Do not jump off the machine at any time.

GENERAL SAFETY PRECAUTIONS continued

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

Do not let an untrained person operate the machine.

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

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

WARNING

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

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

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.

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

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

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

Prolonged exposure to loud noise can cause permanent hearing loss.

No attempt should be made to walk on angled steel surfaces or surfaces that are irregular in shape.

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

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

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

1.3

Tigercat 620C Skidder

Safety Check all fluid levels.

GENERAL SAFETY PRECAUTIONS continued

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

To reduce the risk of fire, machines should be completely cleaned of debris at least daily, particularly around the engine exhaust components. Hydraulic oil leaks, excess grease, fuel and oil accumulation (including spillage) should be eliminated immediately, always shut off engine before cleaning machine.

Do not operate the machine with the cab retaining pins removed. Always install retaining pins and fasten front guards to cab roof after lowering the cab.

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

Machine should be washed completely at every major service.

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

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

The machine should be inspected daily for signs of fluid leaks, damage, unusual wear, or faulty operation. Repair or replace malfunctioning parts and systems immediately.

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

Check window and door guards for damage.

Some advice which should be observed:

Check protective windows for cracks, a damaged window has reduced strength to stop flying objects. All damaged windows must be replaced with original equipment.

• • •

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

•

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

• • • • • •

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 changes as soon as possible.

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

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

Avoid breathing in oil fumes.

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

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

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

1.4

Tigercat 620C Skidder GENERAL SAFETY PRECAUTIONS continued 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 these are found, Do Not Touch!!!

•

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

•

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.

Safety 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.

If the machine must be transported, make sure that it is adequately secured to the transporting vehicle. Refer to vehicle moving instructions in SECTION 2 of the OPERATOR'S MANUAL. 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.

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

Install articulation lock whenever the machine is to be transported.

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

Safety Hazards - Operating Maintain a charged fire extinguisher on the vehicle at all times and KNOW HOW TO USE IT. Do not carry passengers either in the cab or anywhere else on the machine. The vehicle seating accommodation is for one operator only.

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.

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.

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

When operating the machine, ensure there is adequate clearance on both sides and above the machine or any of its attachments. Additional clearance may be necessary where the ground is uneven.

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

Extreme caution should be exercised when approaching any area where overhanging electrical powerlines 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.

Maintain a distance of 10 ft (3 m) between the machine or boom and any power line carrying up to 50,000 volts or less plus 1/2 inch (10mm) for each additional 1,000 volts above the 50,000 volt 1.5 level.

Access to a cell phone or radio to call for assistance in an emergency is advised. Be aware that signal strength for cell phones and radios changes with terrain and location.

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.

Tigercat 620C Skidder

Safety

GENERAL SAFETY PRECAUTIONS continued

Avoid Injury from Backover Accidents Before moving machine, be sure all persons are clear of the area.

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

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

Wash hands after handling.

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

To avoid backover accidents:

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

• •

Do not attempt to charge a frozen battery; it can explode.

Disconnect battery before working on electrical systems. Remove ground terminal first when disconnecting. Connect ground terminal last when reconnecting.

•

•

Do not short out battery terminals for any reason.

Serious burns or an explosion can result.

•

CAUTION • Lead-acid batteries contain sulfuric acid which can severely damage eyes or skin on contact. Always wear a safety face shield, rubber gloves and protective clothing to reduce risk of accidents.

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

1.6

Always look around before you back up. Be sure that everyone is clear.

Keep reverse warning alarm in working condition. The reverse warning alarm must sound when the machine is moving in reverse.

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

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

Keep windows, mirrors and lights in good condition.

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

Tigercat 620C Skidder

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

OPERATING SAFETY PRECAUTIONS

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

1. Left hand cab door, one of the two main points of entry.

2. Right hand cab door, one of the two main points of entry.

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

3. Sliding windows in the cab doors, this is a third cab exit for use if the cab doors become blocked.

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

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

Sound the machine horn before starting the machine.

All three exits should be checked to make sure that they are operational and will function in an emergency.

IMPORTANT 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 operator's seat is equipped with a lap belt.

Use this restraint system at all times when operating the machine.

For additional information, refer to EMERGENCY EXITS in SECTION 3 of the OPERATOR'S MANUAL. Skidder operations should only be performed from the operator's seat.

Secure loose items in cab.

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

Start the engine by following the instructions in this manual. Refer to OPERATING MACHINE in SECTION 2 of the OPERATOR’S MANUAL.

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

Never use a liquid staring aid to start an engine.

WARNING

1.7

Tigercat 620C Skidder

Safety When parking the machine:

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

•

Park on level ground ONLY and engage parking brake

•

Do not park on a hillside or incline.

•

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

•

Stop the engine and release pilot system pressure by performing the following steps: 1. Fully apply brake foot pedal 50 times or more.

2. Pressure may remain in the system after completing all of the above steps.

Use caution when loosening hydraulic connections.

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

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

Never operate the winch from the ground. Control it only from the operator’s seat.

•

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

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

Keep the brake properly adjusted at all times.

Always rest the grapple and dozer blade on the ground when operation is stopped, regardless if the engine is running or shut off.

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

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

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.

Maintain a safe operating distance between the machine and workers and all other personnel. It is the duty of the operator to ensure that no person approach the machine while in use, the risk zone is 60 m (200 feet).

Before leaving the operator's cab, apply the parking brake and lower the grapple and dozer blade to the ground.

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

1.8

Tigercat 620C Skidder

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.

Before moving the machine, lift the grapple and dozer blade off the ground and keep them high enough to clear obstacles such as stumps.

Check for correct tire air pressure. If the pressure is too low it will result in swaying. If the pressure is too high it will result in bouncing.

Never operate the boom or grapple over the heads of bystanders.

If the machine is to travel on public roads, use accessory lights (when installed) and other caution devices to alert operators of other vehicles of your presence. Ensure your machine meets all regulatory requirements.

When reeling in winch cable, make sure all personnel are far enough away in case of rolling logs or whipping cables.

Use only prearranged and approved signalling practices.

When transporting the machine, ensure 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.

Obey flagger's signal and signs Operate the machine only from a seated position in the operator’s seat.

Do not carry passengers either in the cab or anywhere else on the machine.

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

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

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

Do not work below or behind a skidder parked on a grade.

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

NEVER travel across a STEEP slope or side hill: •

• • • • • •

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

Keep load low and close to skidder for best stability.

A load of logs will change the handling and stability of the skidder.

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

Never approach an unstable log from the downhill side.

Do not winch in a load at a sharp angle. This could cause your machine to tip over.

Do not overload your skidder as this can create an unstable condition and cause a roll-over.

1.9

Tigercat 620C Skidder

Safety 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.

SERVICING SAFETY PRECAUTIONS

Care must be taken in attaching the welding machine grounding clamp so current does not pass through bearings, especially the centre joint bearing.

Also, turn off the master disconnect switch and disconnect the positive (+) battery cable from both batteries.

This machine is equipped with sensitive electronic control equipment, prior to welding:Conduct maintenance inspections at least as frequently as recommended in section 3 of the operator's manual.

EARLIER MACHINES (6200501 TO 6200900)

IMPORTANT

When servicing or repairing equipment, shut the engine down, and disconnect the positive (+) battery cable from both batteries.

12 VOLT

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

ELECTRICAL SYSTEM ••

•• DISCONNECT THE TWO MULTI-PIN PLUGS FROM THE ENGINE CPU

620C-16

ENGINE CPU DISCONNECT -LEFT SIDE OF ENGINE

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

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

DISCONNECT ENGINE GROUND CONNECTION

•• ENGINE GROUND DISCONNECT - RIGHT SIDE OF ENGINE Disconnect the engine CPU (Central Processing Unit) by unplugging the two multipin connectors from the left side of the engine. (Applicable on QSB, QSC and QSL9 engines only).

620C-29

Also disconnect the engine ground connection at the chassis.

1.10

Tigercat 620C Skidder

Safety

SERVICING SAFETY PRECAUTIONS continued

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.

LATER MACHINES (6200901 TO 6205000)

IMPORTANT

24 VOLT ELECTRICAL SYSTEM DISCONNECT THE TWO MULTI-PIN PLUGS FROM THE ENGINE CPU

•• ••

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.

DISCONNECT 4 PIN ENGINE POWER CONNECTOR

••

620C-81

ENGINE CPU DISCONNECT -LEFT SIDE OF ENGINE

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

DISCONNECT ENGINE GROUND CONNECTION

•• 620C-90

ENGINE GROUND DISCONNECT - RIGHT SIDE OF ENGINE

Disconnect the engine CPU (Central Processing Unit) by unplugging the four pin engine power connector and the two multipin connectors from the left side of the engine.

Also disconnect the engine ground connection at the chassis.

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

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

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

1.11

Tigercat 620C Skidder

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

SERVICING SAFETY PRECAUTIONS continued

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

WARNING

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)!

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

SAFETY7

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.

Always wear your safety gloves when handling cables, chokers or logs.

1.12

Tigercat 620C Skidder

Safety

SERVICING SAFETY PRECAUTIONS continued

SAFETY CABLE

630C-51

ARTICULATION LOCK IN LOCKED POSITION

Before working in the centre joint area, install the frame articulation lock between the frames to prevent accidental articulation and injury. Always replace the lock bar in its storage position after use.

••

WARNING

620C-21

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

CAB AT FULL TILT SUPPORTED

BY SAFETY CABLE

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

SUPPORT BRACE

•• TILTED CAB SUPPORTED

BY SUPPORT BRACE Before working under cab, machine must be parked on level ground. Cab must be fully tilted with safety cable completely tight or cab support brace must be installed between frame and cab to prevent injury. Refer to TILTING THE CAB in SECTION 3 of THIS MANUAL for complete instructions.

620C -25

20231A R1

All handles should be hand tight only at all times. This is particularly important for easy access to the pressurized water system in the event of a fire or other emergency. Refer also to FIRE PREVENTION in THIS SECTION.

The hydraulic cylinder is to raise and lower cab, it must not be used as a support.

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

CAUTION Do not open cab doors or window screens when machine cab is tilted . The doors and screens are heavy and will swing out with considerable force.

1.13

Tigercat 620C Skidder

Safety

SERVICING SAFETY PRECAUTIONS continued

CAUTION The engine compartment access panels are bolted in place, with the exception of the quick access panel(s). Whenever bolts are removed panels can fall during the process of removing them from the machine.

•

BOLT ON ACCESS PANELS

On earlier machines, once the UPPER DOOR is removed (and the bolts on the lower panel removed) 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 LOWER PANELS with bolts removed as hand grips, when servicing the machine.

• •

ACCESS PANELS RIGHT SIDE (6200501 TO 6201159)

620C-30

BOLT ON ACCESS PANELS

••

••

••

••

QUICK ACCESS LIFT OUT PANEL WITH T-HANDLE

QUICK ACCESS DOORS

••

••

•

THREE BOLTS INSTALLED ON QUICK ACCESS PANEL FOR TRANSPORT ONLY

••

•

•• 620C-31

BOLT ON ACCESS PANELS

ACCESS PANELS LEFT SIDE (6200501 TO 6200949)

620C-94

ACCESS PANELS RIGHT SIDE (6201160 TO 6205000)

••

BOLT ON ACCESS PANELS

•• •• •• ••

625C-11

QUICK ACCESS DOOR

ACCESS PANELS LEFT SIDE (6200950 TO 62001159) 620C-93

1.14

ACCESS PANELS LEFT SIDE (6201160 TO 6205000)

QUICK ACCESS DOORS

Tigercat 620C Skidder

Safety FLUID INJECTION INJURY

SERVICING SAFETY PRECAUTIONS continued

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.

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

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.

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.

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.

Dispose of fluids properly.

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

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

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

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.

Continued on next page

1.15

Tigercat 620C Skidder

Safety GREASE INJECTION INJURY WHEN USING PNEUMATIC GREASE GUNS

SERVICING SAFETY PRECAUTIONS continued

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.

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.

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.

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.

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:

•

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

•

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.

Tigercat 620C Skidder

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

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.

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.

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

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.

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

The following guidelines will help to keep your equipment up and running efficiently and keep the risk of fire to a minimum.

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

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.

1.17

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.

Tigercat 620C Skidder

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.

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

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

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

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

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

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.

1.18

•

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. 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.

Tigercat 620C Skidder

Safety •

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 access holes in the doors of the machine.

WHAT TO DO WHEN A MACHINE FIRE OCCURS •

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

Ensure that your fire detection system* is in working order. Refer to FIRE DETECTION SYSTEM in SECTION 2 of the OPERATOR’S MANUAL.

2. Shut the engine off.

3. Activate the fire suppression system**.

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

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.

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

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

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.

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:

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

•

Before deciding to fight the fire, be certain that:

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

1. The fire is small and not rapidly spreading.

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

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

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 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.

•

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.

•

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.

•

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 in the area. The water will cool the area, reducing the chances of re-ignition.

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 suppression system** on your machine.

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

1.19

Tigercat 620C Skidder

Safety WHAT TO DO AFTER A MACHINE FIRE HAS OCCURRED

FIRE PREVENTION continued •

•

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.

•

•

•

•

Before returning the machine to work.

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.

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

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.

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

•

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

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.

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

**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.

1.20

Tigercat 620C Skidder

Safety 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.

FIRE PREVENTION continued DRY CHEMICAL CLEANUP PROCEDURES

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.

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.

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.

1.21

Tigercat 620C Skidder

Safety

1.22

Tigercat 620C Skidder SECTION 2 - CONTROLS & OPERATION MARCH 2008

Read and understand the entire manual including Safety section prior to operating any equipment. Read and understand all manuals for any attachments or accessories.

CONTENTS - SECTION 2 ACCESS PANELS AND DOORS ................................................................. 2.48 AIR CONDITIONER/HEATER ..................................................................... 2.24 AIR VENTS .................................................................................................. 2.24 ARTICULATION LOCK ................................................................................ 2.75 BATTERY DISCONNECT SWITCH ............................................................ 2.51 CAB CONTROLS (6200501 TO 6200700) ..................................................... 2.6 ARCH AND BOOM CONTROLS ................................................................ 2.8 BOOM AND ARCH CONTROLS ................................................................ 2.8 BRAKE PEDAL ........................................................................................... 2.6 DIFFERENTIAL LOCK SELECTOR SWITCH .......................................... 2.13 DIFFERENTIAL LOCK(S) ON/OFF SWITCH ............................................. 2.9 DOZER BLADE CONTROL LEVER ......................................................... 2.10 ENGINE IDLE SPEED SETTING CONTROL ............................................. 2.8 ENGINE SPEED CONTROL TRIGGER ..................................................... 2.8 ENGINE SPEED/TRAVEL PEDALS ........................................................... 2.6 ENGINE WARNING LIGHTS ................................................................... 2.12 GRAPPLE CONSTANT PRESSURE SWITCH .......................................... 2.9 GRAPPLE OPEN/CLOSE .......................................................................... 2.9 GRAPPLE ROTATE CONTROLS .............................................................. 2.8 IGNITION SWITCH .................................................................................. 2.13 INSTRUMENT PANEL ............................................................................. 2.12 ALARM WARNING LIGHT .................................................................... 2.13 AUX (OPTIONAL) ................................................................................. 2.13 DIFFERENTIAL LOCK FRONT LIGHT ................................................. 2.12 DIFFERENTIAL LOCK REAR LIGHT ................................................... 2.12 DIFFERENTIAL LOCK SELECTOR SWITCH ...................................... 2.13 ENGINE WARNING LIGHTS ................................................................ 2.12 FUSE PANEL ........................................................................................ 2.13 GAUGES. .................................................... SEE INFORMATION CENTER GAUGES SWITCH ............................................................................... 2.12 IGNITION SWITCH ............................................................................... 2.13 INFORMATION CENTER DISPLAY ...................................................... 2.12 IQAN-MDM COMPUTER DISPLAY ...................................................... 2.12 LIGHTER .............................................................................................. 2.13 LIGHTS - SWITCH ............................................................................... 2.13 JOYSTICK CONTROL LEVER (8 BUTTON) ............................................. 2.8 MAXIMUM SPEED CONTROL DIAL ........................................................ 2.10 PARKING BRAKE ...................................................................................... 2.7 SPEED CONTROL DIAL, MAXIMUM ....................................................... 2.10 STEERING WHEEL ................................................................................... 2.6 TRAVEL/ENGINE SPEED PEDALS ........................................................... 2.6 WINCH CONTROL - SWITCH (LANTEC) ............................................... 2.11 WINCH CONTROL LEVER ...................................................................... 2.10 WINCH FREESPOOL - SWITCH (ALLIED) ............................................. 2.11 Continued on page 2

Tigercat 620C Skidder

Controls and operation Tigercat 620C Skidder SECTION 2 - CONTROLS & OPERATION CAB CONTROLS (6200701 TO 6205000) ................................................... 2.14 ARCH AND BOOM CONTROLS .............................................................. 2.16 BOOM AND ARCH CONTROLS .............................................................. 2.16 BRAKE PEDAL ......................................................................................... 2.14 DIFFERENTIAL LOCK SELECTOR SWITCH (6200701 TO 6200900) ......................................................................... 2.21 (6200901 TO 62005000) ....................................................................... 2.23 DIFFERENTIAL LOCK(S) ON/OFF SWITCH ........................................... 2.17 DOZER BLADE CONTROL LEVER ......................................................... 2.18 ENGINE IDLE SPEED SETTING CONTROL SWITCH ........................... 2.19 ENGINE SPEED CONTROL TRIGGER ................................................... 2.16 ENGINE SPEED/TRAVEL PEDALS ......................................................... 2.14 ENGINE WARNING LIGHTS (6200701 TO 6200900) ......................................................................... 2.20 (6200901 TO 6205000) ........................................................................ 2.23 FAN CONTROL SWITCH ........................................................................ 2.18 GRAPPLE CONSTANT PRESSURE SWITCH ........................................ 2.16 GRAPPLE OPEN/CLOSE ........................................................................ 2.17 GRAPPLE ROTATE CONTROLS ............................................................ 2.16 IGNITION SWITCH (6200701 TO 6200900) ......................................................................... 2.21 (6200901 TO 62005000) ....................................................................... 2.23 INSTRUMENT PANEL (6200701 TO 6200900) ....................................... 2.20 ALARM WARNING LIGHT .................................................................... 2.21 AUX (OPTIONAL) ................................................................................. 2.21 DIFFERENTIAL LOCK FRONT LIGHT ................................................. 2.20 DIFFERENTIAL LOCK REAR LIGHT ................................................... 2.20 DIFFERENTIAL LOCK SELECTOR SWITCH ...................................... 2.21 ENGINE WARNING LIGHTS ................................................................ 2.20 FUSE PANEL ........................................................................................ 2.21 GAUGES. .................................................... SEE INFORMATION CENTER GAUGES SWITCH ............................................................................... 2.20 IGNITION SWITCH ............................................................................... 2.21 INFORMATION CENTER DISPLAY ...................................................... 2.20 IQAN-MDM COMPUTER DISPLAY ...................................................... 2.20 LIGHTER .............................................................................................. 2.21 LIGHTS - SWITCH ............................................................................... 2.21 INSTRUMENT PANEL (6200901 TO 62005000) ..................................... 2.22 ALARM WARNING LIGHT .................................................................... 2.23 AUX (OPTIONAL) ................................................................................. 2.23 AUXILIARY POWER OUTLET .............................................................. 2.23 CONSTANT PRESSURE - YELLOW LIGHT ....................................... 2.22 DIFFERENTIAL LOCK FRONT LIGHT ................................................. 2.22 DIFFERENTIAL LOCK REAR LIGHT ................................................... 2.22 DIFFERENTIAL LOCK SELECTOR SWITCH ...................................... 2.23 ENGINE WARNING LIGHTS ................................................................ 2.23 FUSE PANEL ........................................................................................ 2.23

2.2

Tigercat 620C Skidder

Controls and operation Tigercat 620C Skidder SECTION 2 - CONTROLS & OPERATION GAUGES SWITCH ............................................................................... 2.22 IGNITION SWITCH ............................................................................... 2.23 INFORMATION CENTER DISPLAY ...................................................... 2.22 IQAN-MDM COMPUTER DISPLAY ...................................................... 2.22 LIGHTER .............................................................................................. 2.23 LIGHTS - SWITCH ............................................................................... 2.23 PARKING BRAKE - RED LIGHT ........................................................... 2.22 JOYSTICK CONTROL LEVER (6 BUTTON) ........................................... 2.16 MAXIMUM SPEED CONTROL DIAL ........................................................ 2.18 PARKING BRAKE .................................................................................... 2.15 SPEED CONTROL DIAL, MAXIMUM ....................................................... 2.18 STEERING WHEEL ................................................................................. 2.14 TRAVEL/ENGINE SPEED PEDALS ......................................................... 2.14 WINCH CONTROL LEVER ...................................................................... 2.18 WINCH FREESPOOL - SWITCH (ALLIED) ............................................. 2.19 CARE OF THE MACHINE ............................................................................ 2.72 CLEANING INSTRUCTIONS FOR LEXAN WINDOWS .......................... 2.72 CENTER JOINT ........................................................................................... 2.67 CLEANING A/C CONDENSER AND COOLING ASSEMBLY ...................... 2.74 DATE TIME SETTINGS ............................................................................... 2.40 DOORS AND ACCESS PANELS ................................................................. 2.48 ENGINE AIR CLEANER AIR CLEANER .......................................................................................... 2.54 AIR CLEANER UNLOADER VALVE ........................................................ 2.55 AIR INLET HOOD ..................................................................................... 2.54 AIR PRECLEANER .................................................................................. 2.54 FAN CONTROL SWITCH, COOLING ......................................................... 2.18 FILTER, FRESH AIR .................................................................................... 2.25 FILTER, RECIRCULATING AIR, A/C UNIT ................................................. 2.24 FIRE PREVENTION PRESSURIZED WATER SYSTEM .......................................................... 2.53 FUEL TANK ................................................................................................. 2.50 GRAPPLE, OPERATING ............................................................................. 2.66 HEATER/ AIR CONDITIONER .................................................................... 2.24 HOT WATER SHUT OFF VALVE ................................................................ 2.25 HYDRAULIC FILTERS ................................................................................. 2.56 HYDRAULIC HAND FILL PUMP .................................................................. 2.56 HYDRAULIC RESERVOIRS AXLE CIRCUIT RESERVOIR - IN FRONT AXLE .................................... 2.57 MAIN HYDRAULIC OIL TANK .................................................................. 2.56

2.3

Tigercat 620C Skidder

Controls and operation

Tigercat 620C Skidder SECTION 2 - CONTROLS & OPERATION

INFORMATION CENTER -IQAN MDM COMPUTER DISPLAY .................. 2.29 GAUGE MENUS ....................................................................................... 2.30 AVG FUEL RATE ( GAL/H) ................................................................... 2.35 BOOST ( PSI) ....................................................................................... 2.34 CAC TEMP ( °F) .................................................................................... 2.35 CONSTANT PRESSURE ID ................................................................. 2.33 DRIVE MOTOR ( RPM) ........................................................................ 2.34 DRIVE PSI FWD ( PSI) ......................................................................... 2.33 DRIVE PSI REV ( PSI) .......................................................................... 2.33 ENG % TORQUE (%) ........................................................................... 2.34 ENGINE SPEED (RPM) ........................................................................ 2.30 ENGINE TEMP (°F) .............................................................................. 2.31 FUEL LEVEL (%) .................................................................................. 2.32 FUEL RATE ( GAL/H) ........................................................................... 2.35 FUEL TEMP ( °F) .................................................................................. 2.35 FUEL USED X10 ( GAL) ....................................................................... 2.34 HYD OIL TEMP (°F) .............................................................................. 2.33 MACHINE HOURS (H) .......................................................................... 2.34 OIL PRESSURE (PSI) ........................................................................... 2.32 VOLTAGE (VOLTS) 12V ....................................................................... 2.31 VOLTAGE (VOLTS) 24V ....................................................................... 2.32 SYSTEM DIAGNOSTICS MENUS ........................................................... 2.36 ADJUST DATE TIME SETTINGS ......................................................... 2.40 ADJUST LCD DISPLAY BRIGHTNESS ................................................ 2.38 ADJUST LCD DISPLAY CONTRAST ................................................... 2.38 ADJUST SOUND SETTINGS ............................................................... 2.39 DIAGNOSTICS MENU DESCRIPTIONS .............................................. 2.37 DIAGNOSTICS MENU OPERATION .................................................... 2.38 SYSTEM WARNING MESSAGES ........................................................... 2.42 AIR INTAKE RESTRICTED SERVICE INTAKE TO CORRECT ........... 2.47 AXLE FILTER IN BYPASS WARNING .................................................. 2.45 BRAKE PRESSURE LOW .................................................................... 2.47 CHARGE FILTER IN BYPASS WARNING ............................................ 2.45 CHARGE PRESSURE LOW WARNING .............................................. 2.47 ENGINE TEMPERATURE WARNING .................................................. 2.44 FUEL LEVEL LOW ................................................................................ 2.47 HYDRAULIC OIL LEVEL LOW WARNING ........................................... 2.43 HYDRAULIC OIL TEMPERATURE WARNING ..................................... 2.43 LOW COOLANT LEVEL WARNING ..................................................... 2.43 MODULE IS OFFLINE SYSTEM WARNING ........................................ 2.42 OIL PRESSURE WARNING ................................................................. 2.42 SERVICE USE ONLY (PROGRAM MODE) .......................................... 2.46 VOLTAGE WARNING ........................................................................... 2.44 WINCH FREESPOOL ON ..................................................................... 2.44 INSTRUCTIONS FOR MOVING .................................................................. 2.78 IQAN MDM COMPUTER DISPLAY. ................. SEE INFORMATION CENTER

2.4

Tigercat 620C Skidder

Controls and operation

Tigercat 620C Skidder SECTION 2 - CONTROLS & OPERATION

JOYSTICK CONTROL LEVER (6 BUTTON) ............................................... 2.16 JOYSTICK CONTROL LEVER (8 BUTTON) ................................................. 2.8 MOVING INSTRUCTIONS ........................................................................... 2.78 OPERATING MACHINE .............................................................................. 2.58 CENTER JOINT ....................................................................................... 2.67 OPERATING GRAPPLE ........................................................................... 2.66 OPERATING WINCH ............................................................................... 2.67 PRE-START CHECKS ............................................................................. 2.58 RESTARTING AN ENGINE THAT HAS RUN OUT OF FUEL ................. 2.63 STARTING ENGINE ................................................................................. 2.62 STARTING IN COLD WEATHER ............................................................. 2.63 STOPPING ENGINE ................................................................................ 2.65 SYSTEM TEST AND WARM-UP ............................................................. 2.64 TRAVELLING WITHOUT A LOAD ........................................................... 2.65 OPERATOR'S SEAT AIR RIDE .................................................................................................. 2.28 MECHANICAL .......................................................................................... 2.26 PRE-START CHECKS ................................................................................. 2.58 PRESSURIZED WATER SYSTEM .............................................................. 2.53 RADIO, AM/FM CD ...................................................................................... 2.26 SKIDDING .................................................................................................... 2.68 CABLE SKIDDING .................................................................................... 2.71 EFFECT OF ARCH/BOOM GEOMETRY ON WEIGHT DISTRIBUTIO ... 2.69 GRAPPLE SKIDDING .............................................................................. 2.70 SAFETY .................................................................................................... 2.68 SKIDDING TECHNIQUE .......................................................................... 2.68 STARTING ENGINE .................................................................................... 2.62 STEREO, AM/FM CD ................................................................................... 2.26 STOPPING ENGINE .................................................................................... 2.65 SYSTEM TEST AND WARM-UP ................................................................. 2.64 SYSTEM WARNING MESSAGES. ................... SEE INFORMATION CENTER TILT CAB. ............................................................................... SEE SECTION 3 TOWING INSTRUCTIONS .......................................................................... 2.77 TRANSMISSION DIPSTICK ........................................................................ 2.52 TRANSMISSION OIL FILL LOCATION ........................................................ 2.52 TRANSPORTING INSTRUCTIONS ............................................................. 2.76 WARNING LIGHTS, DIFFERENTIAL LOCKS. ...... SEE INSTRUMENT PANEL WARNING LIGHTS, ENGINE. ............................... SEE INSTRUMENT PANEL WARNING MESSAGES, IQAN MDM. .............. SEE INFORMATION CENTER WINCH, OPERATING .................................................................................. 2.67

2.5

Tigercat 620C Skidder

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 SERIAL NUMBER 6200501 TO 6200700 1.

TRAVEL/ ENGINE SPEED PEDALS Press the RIGHT foot pedal to drive FORWARD. Press the LEFT foot pedal to drive in REVERSE. The position of the foot pedal is directly proportional to the travel/engine speed of the machine.

3

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

1

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• 139-3

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3.

STEERING WHEEL This machine is equipped with Variable Ratio Load Sensing Steering. The speed that the vehicle responds to the steering wheel input will vary, depending on the speed that the steering wheel is moved. When operating on the road, a slow movement of the steering wheel will not overcorrect and will steer a straight normal course. Operating in the woods requires quick steering changes and this is produced by a rapid movement of the steering wheel, which will quickly change the vehicles direction.

630C-02

2. BRAKE PEDAL Depress the foot pedal to apply the hydraulic brakes in the front axle. This will also apply braking to the rear axle since they are mechanically locked together by the drive shafts and transmission.

The lever on the left side of the Steering Column allows the selection of Telescopic and Tilt options.

NOTE: As a safety precaution before working on or around the machine; After the engine has been shut off, depress this pedal 50 or more times to relieve any pressure that may be stored in the hydraulic system.

The horn button is located in the centre of the steering wheel.

2.6

Tigercat 620C Skidder

630-43

630C-44

4.

Controls and operation

PARKING BRAKE ~ ENGAGED POSITION

PARKING BRAKE ~ DISENGAGED POSITION

PARKING BRAKE PULL up on handle to ENGAGE parking brake.

PUSH down on the handle to DISENGAGE parking brake.

This parking brake operates a disc brake calliper on the transmission.

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

The drive prevent logic circuit prevents the machine from being driven when the parking brake is ON. A proximity sensor (earlier machines) or limit switch (later machines) is attached to the brake lever housing. When the brake lever is in the ON position the proximity sensor or limit switch is activated. When the brake lever is in the fully OFF position the proximity sensor or limit switch is de-activated. The signal is sent to the computer control system.

Keep the brake properly adjusted at all times.

The parking brake linkage must be kept properly adjusted at all times and should be serviced (adjusted and lubricated) every 500 hours during normal operating conditions. Refer to PARKING BRAKE ADJUSTMENT in SECTION 9 of the SERVICE MANUAL. 2.7

Tigercat 620C Skidder

Controls and operation 6c CONSTANT PRESSURE

6a

6 6b

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6d 6e

6f

18771BR0

6a Engine Idle Speed Setting - Two push buttons (Top left) To increase engine idle RPM press and hold the RIGHT BUTTON, release when the desired engine speed is reached.

630C-07

6.

To decrease engine idle RPM press and hold the LEFT BUTTON, release when the desired engine speed is reached.

JOYSTICK CONTROL LEVER (6200501 TO 6200700)

JOYSTICK CONTROL LEVER (8 BUTTON)

For recommended engine rpm values, refer to INFORMATION CENTER ~ GAUGE MENUS ~ ENGINE SPEED in THIS SECTION.

Boom Move the joystick BACK to RAISE the boom.

Move the joystick FORWARD to LOWER the boom.

6b Grapple Rotate - Two push buttons (Bottom left)

Arch

Push BOTTOM BUTTON to rotate grapple COUNTER CLOCKWISE.

Move the joystick to the RIGHT to tilt arch OUT.

Push TOP BUTTON to rotate grapple CLOCKWISE.

Move the joystick to the LEFT to tilt arch IN.

6c Engine speed control - Trigger Pull this trigger to increase engine speed when performing machine functions which do not require machine travel. Release trigger to return to engine idle speed.

18771BR0

2.8

Tigercat 620C Skidder

Controls and operation

6d Constant Pressure (grapple) - One push button (Top right - LEFT BUTTON) Push this button and release it to maintain a constant pressure HOLD on the grapple load and help prevent slipping. Constant pressure is released when the grapple is opened.

Also refer to GRAPPLE, OPERATING in THIS SECTION. 6e Differential Locks ON/OFF - One push button (Top right - RIGHT BUTTON) Press button to activate differential locks.

Push button a second time to deactivate.

Note: This machine is equipped with a 10 minute AUTO-OFF feature which automatically deactivates the differential locks after 10 minutes have passed.

This switch activates differential locks in the front, rear or both axles depending on the position of the differential lock selector switch on the instrument panel. Axle(s) are locked to provide torque to both wheels. Refer also to DIFFERENTIAL LOCK SELECTOR SWITCH in THIS SECTION.

IMPORTANT Use differential locks sparingly and for brief periods and only when additional traction is needed or serious damage may occur.

6f Grapple open/close - Two push buttons (Bottom right) Push TOP BUTTON to open grapple.

Push BOTTOM BUTTON to CLOSE grapple.

2.9

Tigercat 620C Skidder

Controls and operation 8. WINCH CONTROL LEVER

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Pull and hold the lever BACK to wind in the winch cable.

10

The control lever will return to the center neutral position when the handle is released.

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The neutral or center position actuates the winch pinion brake and prevents the drum from rotating.

•

630C-08X

Operating the WINCH FREE SPOOL switch (on control panel) permits the cable to unwind freely. The cable can then be pulled from the drum by the operator.

CONTROL PANEL (6200501 TO 6200700)

CONTROL PANEL SERIAL NUMBER 6200501 TO 6200700

Refer also to WINCH CONTROL SWITCH (LANTEC) or WINCH FREESPOOL SWITCH (ALLIED) and OPERATING WINCH in THIS SECTION.

7. DOZER BLADE CONTROL LEVER Pull the lever BACK to RAISE the dozer blade.

9. MAXIMUM SPEED CONTROL DIAL

Push the lever FORWARD to LOWER the blade.

The control lever will return to the center neutral position when the handle is released.

The maximum speed control dial allows the operator to set the maximum travel speed of the machine to maintain a given travel speed without having to feather the drive pedals.

NOTE: Always travel with the dozer blade in the raised position to avoid obstacles.

Turn the dial to the right to increase the maximum travel speed.

Turn the dial to the left to decrease the maximum travel speed of the machine.

CAUTION Never use the dozer blade to remove tree stumps or large boulders.

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

Caution: Turning the maximum speed control dial completely to the left (minimum setting) lowers maximum travel speed only, it will NOT prevent the machine from travelling when the forward or reverse travel pedals are used.

WARNING When leaving the cab, always lower the grapple and dozer to the ground, engage the parking brake and turn the ignition switch off.

If leaving the Skidder unattended, also remove the ignition key and switch the battery disconnect switch to “off”.

2.10

Tigercat 620C Skidder

Controls and operation

10A. WINCH CONTROL - SWITCH LANTEC WINCH This is a three position switch labelled / / FREE SPOOL. Place this switch in the position to operate the winch motor at high speed.

Place this switch in the position to operate the winch motor at low speed.

Place this switch in the FREE SPOOL position to disconnect the drive motor from the drum in the winch and allow the cable to be freely pulled from the spool. Free spool must be turned off to activate a pull with the winch.

Note: An alarm warning light will flash, "Winch freespool on" will appear on the IQAN-MDM computer display, and horn will sound whenever the winch control switch is in the FREE SPOOL position.

10B. WINCH FREESPOOL - SWITCH ALLIED WINCH This is a two position switch. Place this switch in the (freespool) position to disconnect the drive motor from the drum in the winch and allow the cable to be freely pulled from the spool. Free spool must be turned off to activate a pull with the winch.

Note: An alarm warning light will flash, "Winch freespool on" will appear on the IQAN-MDM computer display, and alarm will sound whenever the winch control switch is in the FREE SPOOL position.

2.11

Tigercat 620C Skidder 31

Controls and operation 33

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INSTRUMENT PANEL (6200501 TO 6200700)

INSTRUMENT PANEL

34. DIFFERENTIAL LOCK FRONT - GREEN LIGHT

SERIAL NUMBER 6200501 TO 6200700 31. GAUGES SWITCH

This light will come ON when the front axle differential lock is activated by pushing the button on the joystick.

This is a two position switch.

Press the top of this switch to place the information center display in gauge mode.

ENGINE WARNING LIGHTS

Press the bottom of this switch to place the information center display in system diagnostic mode.

Note that the five engine warning lights on the instrument panel are connected directly to the engine control module (ECM). These warning lights are NOT connected to the IQAN computer system.

Refer to INFORMATION CENTER in THIS SECTION for complete operating details.

35. ENGINE: STOP - RED LIGHT

32. INFORMATION CENTER DISPLAY (IQAN-MDM COMPUTER DISPLAY)

This light will come ON when the engine stops while the ignition switch is in the RUN position. Refer to engine manufacturer's manual for specific information regarding the engine.

This information center display (IQAN-MDM computer display) is the operator interface with the IQAN control system.

Refer to INFORMATION CENTER in THIS SECTION for complete operating details.

36. ENGINE: WARNING - AMBER LIGHT This light will come ON when non critical engine alarms are triggered. Investigate the cause of the warning at the earliest opportunity. Refer to engine manufacturer's manual for specific information regarding the engine.

33. DIFFERENTIAL LOCK REAR - GREEN LIGHT This light will come ON when the rear axle differential lock is activated by pushing the button on the joystick.

2.12

Tigercat 620C Skidder

Controls and operation

37. ENGINE: WAIT TO START - AMBER LIGHT

42. LIGHTER Cigarette lighter is supplied.

This light comes on as part of the engine start procedure. After placing the keyswitch in the RUN position the operator must wait for this light to go out before placing the keyswitch in the START position. Refer also to IGNITION SWITCH and STARTING ENGINE in THIS SECTION. Refer to engine manufacturer's manual for specific information regarding the engine.

43. DIFFERENTIAL LOCK SELECTOR SWITCH This is a three position switch labelled FRONT / FRONT AND REAR / REAR. Placing this switch in the FRONT position selects the front axle differential locks for activation via the differential lock switch on the joystick.

38. ENGINE: WATER IN FUEL - AMBER LIGHT

Placing this switch in the FRONT AND REAR position selects both the front and rear axle differential locks for activation via the differential lock switch on the joystick.

This light will come ON when water is detected in the fuel. Refer to engine manufacturer's manual for specific information regarding the engine.

Placing this switch in the REAR position selects the rear axle differential locks for activation via the differential lock switch on the joystick.

39. ENGINE: MAINTENANCE - AMBER LIGHT This light will come ON when the engine requires maintenance. Refer to engine manufacturer's manual for specific information regarding the engine.

Refer also to DIFFERENTIAL LOCK(S) ON/ OFF SWITCH in THIS SECTION. 44. LIGHTS - SWITCH

40. IGNITION SWITCH - 3 POSITION

This switch turns on working lights.

OFF position - All electrical power fed through the ignition switch is turned “OFF”

45. LIGHTS - SWITCH

RUN position - Connects the battery to all functions. Used for normal machine operation.

This switch turns on working lights.

46. AUX (OPTIONAL) Applicable to optional light packages.

START position - This position energizes the starter motor and will crank over the engine.

47. AUX (OPTIONAL) Applicable to optional light packages.

NOTE - Parking Brake must be ON to start the engine.

48. AUX (OPTIONAL) Spare switch location.

Refer also to STARTING ENGINE in THIS SECTION.

49. ALARM WARNING LIGHT

41. FUSE PANEL The fuses and relays are protected beneath a panel which can be opened by removing two screws.

This light flashes to alert the operator that an alarm condition has been detected and should be dealt with immediately. All warning messages can be viewed on the information center display on the instrument panel. Refer to the INFORMATION CENTER ~ SYSTEM WARNING MESSAGES in THIS SECTION for details.

IMPORTANT 12 VOLT ELECTRICAL SYSTEM

2.13

Tigercat 620C Skidder

Controls and operation

CONTROLS-CAB SERIAL NUMBERS 6200701 TO 6205000 1.

TRAVEL/ ENGINE SPEED PEDALS Press the RIGHT foot pedal to drive FORWARD. Press the LEFT foot pedal to drive in REVERSE. The position of the foot pedal is directly proportional to the travel/engine speed of the machine.

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

1 139-3

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3.

STEERING WHEEL METERED STEER VALVE This machine is equipped with Variable Ratio Load Sensing Steering. The speed that the vehicle responds to the steering wheel input will vary, depending on the speed at which the steering wheel is moved.

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6200701 TO 6200900, 6201041 TO 6205000

620C-92

When operating on the road, a slow movement of the steering wheel will not overcorrect and will steer a straight normal course.

1 2

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Operating in the woods requires quick steering changes and this is produced by a rapid movement of the steering wheel, which will quickly change the vehicle's direction.

•

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The lever on the left side of the Steering Column allows the selection of Telescopic and Tilt options.

630C-02

The horn button is located in the center of the steering wheel.

6200901 TO 6201040

2. BRAKE PEDAL Depress the foot pedal to apply the hydraulic brakes in the front axle. This will also apply braking to the rear axle since they are mechanically locked together by the drive shafts and transmission.

NOTE: As a safety precaution before working on or around the machine; After the engine has been shut off, depress this pedal 50 or more times to relieve any pressure that may be stored in the hydraulic system.

2.14

Tigercat 620C Skidder

Controls and operation

QUICK STEER VALVE (OPTIONAL) This machine is equipped with Variable Ratio Load Sensing Steering. The speed that the vehicle responds to the steering wheel input will vary; depending on the angle the steering wheel is turned. Turning the steering wheel ±50° results in controlled flow, from zero to full steering flow.

When operating on the road, turning the steering wheel only a few degrees in either direction will result in slower steering, not overcorrect and will steer a straight normal course.

630-43

PARKING BRAKE ~ ENGAGED POSITION

Operating in the woods requires quick steering changes and this is produced by fully turning the steering wheel (± 50°), which will fully lock steering and quickly change the vehicle’s direction.

The lever on the left side of the Steering Column allows the selection of Telescopic and Tilt options.

630C-44

The horn button is located in the center of the steering wheel.

4.

PARKING BRAKE ~ DISENGAGED POSITION

PARKING BRAKE PULL up on handle to ENGAGE parking brake.

PUSH down on the handle to DISENGAGE parking brake.

This parking brake operates a disc brake calliper on the transmission.

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

The drive prevent logic circuit prevents the machine from being driven when the parking brake is ON. A proximity sensor (earlier machines) or limit switch (later machines) is attached to the brake lever housing. When the brake lever is in the ON position the proximity sensor or limit switch is activated. When the brake lever is in the fully OFF position the proximity sensor or limit switch is de-activated. The signal is sent to the computer control system.

Keep the brake properly adjusted at all times.

The parking brake linkage must be kept properly adjusted at all times and should be serviced (adjusted and lubricated) every 500 hours during normal operating conditions.

Refer to PARKING BRAKE ADJUSTMENT in SECTION 9 of the SERVICE MANUAL.

2.15

Tigercat 620C Skidder

Controls and operation 6b 6c 6a

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6e 24187BR0

6a Grapple Rotate - Two push buttons (Top left) Push LEFT BUTTON to rotate grapple COUNTER CLOCKWISE.

635C-02

Push RIGHT BUTTON to rotate grapple CLOCKWISE.

JOYSTICK CONTROL LEVER (6200701 TO 6205000)

6b Engine speed control - Trigger 6.

JOYSTICK CONTROL LEVER (6 BUTTON)

Pull this trigger to increase engine speed when performing machine functions which do not require machine travel. Release trigger to return to engine idle speed.

Boom Move the joystick BACK to RAISE the boom.

Move the joystick FORWARD to LOWER the boom.

Refer also to ENGINE IDLE SPEED SETTING CONTROL SWITCH in THIS SECTION.

Arch

6c Constant Pressure (grapple) - One push button (Top right - LEFT BUTTON)

Move the joystick to the RIGHT to tilt arch OUT.

Push this button and release it to maintain a constant pressure HOLD on the grapple load and help prevent slipping. Constant pressure is released when the grapple is opened.

Move the joystick to the LEFT to tilt arch IN.

Also refer to GRAPPLE, OPERATING in THIS SECTION.

24187BR0

2.16

Tigercat 620C Skidder

Controls and operation

6d Differential Locks ON/OFF - One push button (Top right - RIGHT BUTTON) Press button to activate differential locks.

Push button a second time to deactivate.

Note: This machine is equipped with a 10 minute AUTO-OFF feature which automatically deactivates the differential locks after 10 minutes have passed.

This switch activates differential locks in the front, rear or both axles depending on the position of the differential lock selector switch on the instrument panel. Axle(s) are locked to provide torque to both wheels. Refer also to DIFFERENTIAL LOCK SELECTOR SWITCH in THIS SECTION.

IMPORTANT Use differential locks sparingly and for brief periods and only when additional traction is needed or serious damage may occur.

6e Grapple open/close - Two push buttons (Bottom) Push LEFT BUTTON to CLOSE grapple.

Push RIGHT BUTTON to OPEN grapple.

2.17

Tigercat 620C Skidder 7

10

9

8

•

Controls and operation 11

9. MAXIMUM SPEED CONTROL DIAL

12

The maximum speed control dial allows the operator to set the maximum travel speed of the machine to maintain a given travel speed without having to feather the drive pedals.

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Turn the dial to the right to increase the maximum travel speed.

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Turn the dial to the left to decrease the maximum travel speed of the machine.

635C-03

CONTROL PANEL (6200701 TO 6205000)

CONTROL PANEL

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

SERIAL NUMBERS 6200701 TO 6205000

Caution: Turning the maximum speed control dial completely to the left (minimum setting) lowers maximum travel speed only, it will NOT prevent the machine from travelling when the forward or reverse travel pedals are used.

7. DOZER BLADE CONTROL LEVER Pull the lever BACK to RAISE the dozer blade.

Push the lever FORWARD to LOWER the blade.

10. FAN CONTROL - SWITCH (IF EQUIPPED WITH OPTIONAL FLEXXAIRE® FAN)

The control lever will return to the center neutral position when the handle is released.

This is a three position switch, labelled FULL ON / AUTOMATIC / CLEAN. This switch controls the operation of the optional Flexxaire® cooling fan.

NOTE: Always travel with the dozer blade in the raised position to avoid obstacles.

CAUTION

The Flexxaire® cooling fan blade pitch is hydraulically varied to control the flow and direction of air through the cooling assembly.

Never use the dozer blade to remove tree stumps or large boulders.

AUTOMATIC Position - AUTOMATIC is the normal operating position for the fan control switch. When the switch is in the AUTOMATIC position, the fan will operate completely in an automatic mode. The computer control system will automatically control the fan pitch to minimize system energy losses and improve performance based on the temperature of the charge air, engine coolant and hydraulic oil. The IQAN computer system automatically adjusts fan air flow to the minimum required level to maintain optimal operating conditions.

WARNING When leaving the cab, always lower the grapple and dozer to the ground, engage the parking brake and turn the ignition switch off.

If leaving the Skidder unattended, also remove the ignition key and switch the battery disconnect switch to “off”.

8. WINCH CONTROL LEVER Press activation switch on top of lever and pull and hold the lever BACK to wind in the winch cable.

Automatic control of fan air flow to match your operating conditions can lower fuel consumption and reduce operating costs. In high temperature operating conditions the fan air flow is increased to improve cooling ability and efficient operation of the cooling assembly and air conditioning systems. In low temperature operating conditions fan air flow is reduced, as less cooling is required for efficient operation of the cooling assembly.

The control lever will return to the center neutral position when the handle is released.

The neutral or center position actuates the winch pinion brake and prevents the drum from rotating.

Operating the WINCH FREE SPOOL switch (on control panel) permits the cable to unwind freely. The cable can then be pulled from the drum by the operator. Refer also to WINCH FREESPOOL SWITCH and OPERATING WINCH in THIS SECTION. 2.18

Tigercat 620C Skidder

Controls and operation

In addition, when this switch is in the AUTOMATIC position, the system will automatically cycle through an auto clean cycle.

PARAMETERS). Refer also to INFORMATION CENTER ~ SYSTEM DIAGNOSTICS MENUS ~ DIAGNOSTICS MENU OPERATION ~ PROPERTIES MENU in THIS SECTION.

The auto clean cycle is adjustable through the IQAN control system menu (PROPERTIES~ OTHER~FUNCTION PARAMETERS). Refer also to INFORMATION CENTER ~ SYSTEM DIAGNOSTICS MENUS ~ DIAGNOSTICS MENU OPERATION ~ PROPERTIES MENU in THIS SECTION.

It is also important to manually clean debris from the machine on a regular basis to maintain low machine operating temperatures. Refer to CLEANING A/C CONDENSER AND COOLING ASSEMBLY in THIS SECTION. 11. WINCH FREESPOOL - SWITCH

Note that when the switch is in the AUTOMATIC position and the fan has stopped due to low charge air, engine coolant and hydraulic oil temperatures, turning ON the A/C will cause the computer system to immediately place the fan blades at a pitch to provide 30% air flow. This is to ensure that sufficient air flow is available for the cab A/C even while the machine is still warming up.

This is a two position switch. Place this (freespool) position to switch in the disconnect the drive motor from the drum in the winch and allow the cable to be freely pulled from the spool. Free spool must be turned off to activate a pull with the winch.

Note: An alarm warning light will flash, "Winch freespool on" will appear on the IQAN-MDM computer display, and alarm will sound whenever the winch control switch is in the FREE SPOOL position.

FULL ON Position - When the switch is in the FULL ON position, the computer control system is overridden and the fan will run at FULL air flow (blades pitched to 100%), for cooling regardless of charge air, engine coolant or hydraulic oil temperatures.

Normally the fan control switch is placed in the AUTOMATIC position for optimal cooling.

The FULL ON position is intended for use in the event of a temporary failure of the control system.

12. ENGINE IDLE SPEED This is a three position momentary switch which spring returns to the center neutral position when released.

To increase engine idle RPM press and hold the switch in the position, release switch to the center neutral position when the desired engine speed is reached.

CLEAN Position - Momentarily pressing the switch to the CLEAN position will manually start the automatic clean cycle, reversing the flow of air (there is no need to hold the switch down). The pitch of the fan blades is changed and the direction of airflow through the engine enclosure is reversed. This change in airflow blows debris from the machines engine enclosure to eliminate potential overheating and poor machine performance caused by overheating. Ensure that there are no personnel standing directly to the sides of the machine when performing this operation, as dust and debris will fly out.

To decrease engine idle RPM press and hold the switch in the position, release when the desired engine speed is reached.

For recommended engine rpm values, refer to INFORMATION CENTER ~ GAUGE MENUS ~ ENGINE SPEED in THIS SECTION.

When the CLEAN cycle is complete the fan automatically returns to normal air flow direction.

The auto clean cycle is adjustable through the IQAN control system menu (PROPERTIES~ OTHER~FUNCTION

2.19

Tigercat 620C Skidder

31

Controls and operation

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•• INSTRUMENT PANEL (6200701 TO 6200900) 33. DIFFERENTIAL LOCK REAR INSTRUMENT PANEL - GREEN LIGHT 635C-05

SERIAL NUMBERS 6200701 TO 6200900

This light will come ON when the rear axle differential lock is activated by pushing the button on the joystick.

31. GAUGES SWITCH This is a two position switch.

34. DIFFERENTIAL LOCK FRONT - GREEN LIGHT

Press the top of this switch to place the information center display in gauge mode.

This light will come ON when the front axle differential lock is activated by pushing the button on the joystick.

Press the bottom of this switch to place the information center display in system diagnostic mode. In addition when the system is in diagnostic mode any active engine codes will be transmitted to the engine warning lights.

ENGINE WARNING LIGHTS Note that the four engine warning lights on the instrument panel are connected directly to the engine control module (ECM). These warning lights are NOT connected to the IQAN computer system.

Refer to INFORMATION CENTER in THIS SECTION for complete operating details.

32. INFORMATION CENTER DISPLAY (IQAN-MDM COMPUTER DISPLAY) This information center display (IQAN-MDM computer display) is the operator interface with the IQAN control system.

Refer to INFORMATION CENTER in THIS SECTION for complete operating details.

2.20

35. ENGINE: STOP - RED LIGHT This light will come ON when the engine stops while the ignition switch is in the RUN position. Refer to engine manufacturer's manual for specific information regarding the engine.

Tigercat 620C Skidder

Controls and operation

36. ENGINE: WARNING - AMBER LIGHT

43. DIFFERENTIAL LOCK SELECTOR SWITCH

This light will come ON when non critical engine alarms are triggered. Investigate the cause of the warning at the earliest opportunity. Refer to engine manufacturer's manual for specific information regarding the engine.

This is a three position switch labelled FRONT / FRONT AND REAR / REAR. Placing this switch in the FRONT position selects the front axle differential locks for activation via the differential lock switch on the joystick.

37. ENGINE: WAIT TO START - AMBER LIGHT

Placing this switch in the FRONT AND REAR position selects both the front and rear axle differential locks for activation via the differential lock switch on the joystick.

This light comes on as part of the engine start procedure. After placing the keyswitch in the RUN position the operator must wait for this light to go out before placing the keyswitch in the START position. Refer also to IGNITION SWITCH and STARTING ENGINE in THIS SECTION. Refer to engine manufacturer's manual for specific information regarding the engine.

Placing this switch in the REAR position selects the rear axle differential locks for activation via the differential lock switch on the joystick.

Refer also to DIFFERENTIAL LOCK(S) ON/ OFF SWITCH in THIS SECTION.

38. ENGINE: WATER IN FUEL - AMBER LIGHT

44. LIGHTS - SWITCH

This light will come ON when water is detected in the fuel. Refer to engine manufacturer's manual for specific information regarding the engine.

This switch turns on working lights.

45. LIGHTS - SWITCH This switch turns on working lights.

40. IGNITION SWITCH - 3 POSITION

46. AUX (OPTIONAL) Applicable to optional light packages.

OFF position - All electrical power fed through the ignition switch is turned “OFF”

47. AUX (OPTIONAL) Applicable to optional light packages.

RUN position - Connects the battery to all functions. Used for normal machine operation.

48. AUX (OPTIONAL) Spare switch location.

START position - This position energizes the starter motor and will crank over the engine.

49. ALARM WARNING LIGHT

NOTE - Parking Brake must be ON to start the engine.

This light flashes to alert the operator that an alarm condition has been detected and should be dealt with immediately. All warning messages can be viewed on the information center display on the instrument panel. Refer to the INFORMATION CENTER ~ SYSTEM WARNING MESSAGES in THIS SECTION for details.

Refer also to STARTING ENGINE in THIS SECTION. 41. FUSE PANEL The fuses and relays are protected beneath a panel which can be opened by removing two screws.

50. CONSTANT PRESSURE - YELLOW LIGHT

IMPORTANT

Shows that a constant closing pressure is being applied to the grapple tongs. Activated by the grapple constant pressure button on the joystick. Deactivated by pushing the grapple open button on the joystick.

12 VOLT ELECTRICAL SYSTEM 42. LIGHTER 12V Cigarette lighter is supplied.

2.21

Tigercat 620C Skidder

31

Controls and operation 33

32

35

34

•• •

••

••

•

•

•

39

•

••

••

••

••

•

38

•

••

••

•

40

37

36

48

49

630C-241

• ••

• 41

50

42

43

44

45

46

47

INSTRUMENT PANEL (6200901 TO 6205000)

INSTRUMENT PANEL

33. DIFFERENTIAL LOCK REAR - GREEN LIGHT

SERIAL NUMBERS 6200901 TO 6205000

This light will come ON when the rear axle differential lock is activated by pushing the button on the joystick.

31. GAUGES SWITCH This is a two position switch.

34. DIFFERENTIAL LOCK FRONT - GREEN LIGHT

Press the top of this switch to place the information center display in gauge mode.

This light will come ON when the front axle differential lock is activated by pushing the button on the joystick.

Press the bottom of this switch to place the information center display in system diagnostic mode. In addition when the system is in diagnostic mode any active engine codes will be transmitted to the engine warning lights.

35. CONSTANT PRESSURE - YELLOW LIGHT Shows that a constant closing pressure is being applied to the grapple tongs. Activated by the grapple constant pressure button on the joystick. Deactivated by pushing the grapple open button on the joystick.

Refer to INFORMATION CENTER in THIS SECTION for complete operating details.

32. INFORMATION CENTER DISPLAY (IQAN-MDM COMPUTER DISPLAY)

36. PARKING BRAKE - RED LIGHT This light will come ON when the parking brake is engaged.

This information center display (IQAN-MDM computer display) is the operator interface with the IQAN control system.

When the parking brake is disengaged the light will be OFF.

Refer to INFORMATION CENTER in THIS SECTION for complete operating details.

NOTE: The machine will not move when this light is ON (brake engaged).

2.22

Tigercat 620C Skidder

Controls and operation

ENGINE WARNING LIGHTS

Placing this switch in the FRONT AND REAR position selects both the front and rear axle differential locks for activation via the differential lock switch on the joystick.

Note that the four engine warning lights on the instrument panel are connected directly to the engine control module (ECM). These warning lights are NOT connected to the IQAN computer system.

Placing this switch in the REAR position selects the rear axle differential locks for activation via the differential lock switch on the joystick.

37. ENGINE: STOP - RED LIGHT This light will come ON when the engine stops while the ignition switch is in the RUN position and/or when critical engine alarms are triggered. Refer to engine manufacturer's manual for specific information regarding the engine.

Refer also to DIFFERENTIAL LOCK(S) ON/ OFF SWITCH in THIS SECTION. 42. LIGHTS - SWITCH This switch turns on working lights.

43. LIGHTS - SWITCH

38. ENGINE: WAIT TO START - AMBER LIGHT

This switch turns on working lights.

This light comes on as part of the engine start procedure. After placing the keyswitch in the RUN position the operator must wait for this light to go out before placing the keyswitch in the START position. Refer also to IGNITION SWITCH and STARTING ENGINE in THIS SECTION. Refer to engine manufacturer's manual for specific information regarding the engine.

44. AUX (OPTIONAL) Applicable to optional light packages.

45. AUX (OPTIONAL) Applicable to optional light packages.

46. AUX (OPTIONAL) Spare switch location.

47. ALARM WARNING LIGHT

39. ENGINE: WARNING - AMBER LIGHT

This light flashes to alert the operator that an alarm condition has been detected and should be dealt with immediately. All warning messages can be viewed on the information center display on the instrument panel. Refer to the INFORMATION CENTER ~ SYSTEM WARNING MESSAGES in THIS SECTION for details.

This light will come ON when non critical engine alarms are triggered. Investigate the cause of the warning at the earliest opportunity. Refer to engine manufacturer's manual for specific information regarding the engine.

40. IGNITION SWITCH - 3 POSITION

48. FUSE PANEL The fuses and relays are protected beneath a panel which can be opened by removing two screws.

OFF position - All electrical power fed through the ignition switch is turned “OFF” RUN position - Connects the battery to all functions. Used for normal machine operation.

IMPORTANT

START position - This position energizes the starter motor and will crank over the engine.

24 VOLT ELECTRICAL SYSTEM

NOTE - Parking Brake must be ON to start the engine.

49. LIGHTER 24V Cigarette lighter is supplied.

Refer also to STARTING ENGINE in THIS SECTION.

50. AUXILIARY POWER OUTLET 12 V A 12 volt outlet is provied for portable devices such as cell phones.

41. DIFFERENTIAL LOCK SELECTOR SWITCH This is a three position switch labelled FRONT / FRONT AND REAR / REAR. Placing this switch in the FRONT position selects the front axle differential locks for activation via the differential lock switch on the joystick.

2.23

Tigercat 620C Skidder

Controls and operation

AIR CONDITIONER/HEATER 2

•

4

•

•

3

1

•

•

350-4A

A/C-HEATER CONTROL PANEL 193-8

R.H. DOOR POST VENTS - 2

A/C HEATER CONTROL PANEL

•

1. A/C AND FAN CONTROL This is a rotary, seven position switch. In the center (neutral) position the fan and air conditioning are off. In the three positions counter clockwise from center the air conditioning is activated at one of three fan speeds. In the three positions clockwise from center the fan only is activated at one of three fan speeds. To maximize efficiency of the air conditioning system make sure the temperature control is at the coolest setting (full counterclockwise) when using the air conditioning .

4

• REAR DASH VENTS - 2

151-11

5

•

2. TEMPERATURE CONTROL

•

4

This is a variable, rotary control to adjust the temperature of air in the cab for both heating and air conditioning. The blue area of the scale indicates cooler temperatures the red area indicates warmer temperatures.

Temperature is adjusted by regulating the flow of engine coolant into the heater core. To maximize efficiency of the air conditioning system make sure the temperature control is at the coolest setting (full counterclockwise) when using the air conditioning.

151-9

VENTS BEHIND SEAT - 2

4. AIR VENTS The Air Conditioner/Heater package has 10 air outlets in the cab.

• 2 in the top half of the left door post.

• 2 in the top half of the right door post.

• 2 on the rear dash, below the window.

• 1 behind seat on the lower right.

• 1 behind seat on the lower left.

If the hot water shut off valve is closed the temperature control will have no effect on cab air temperature for heating or cooling. Refer to HOT WATER SHUT OFF VALVE in THIS SECTION for details.

NOTE: To increase flow to a given vent, other vents must be closed in order to redirect the air.

3. AIR SOURCE

5. FILTER, RECIRCULATING AIR - A/C UNIT

This is a two position rocker switch used to add fresh air to the cab. In the ON position fresh air is brought into the cab. In the OFF position air from the cab is recirculated along with fresh air.

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. It should be cleaned or replaced on a regular basis.

This is done by removing two thumb screws in the filter box cover.

2.24

Tigercat 620C Skidder

Controls and operation ENGINE

SHUT-OFF VALVE

••

•

HOSE TO A/C HEATER UNIT

• 620C-87

HOT WATER SHUT OFF VALVE

6. HOT WATER SHUT OFF VALVE (ENGINE) 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 cooling effect.

7

•

FRESH AIR FILTER 303-20 7. FILTER - FRESH AIR When the air source switch is in the ON position , outside air is drawn into the cab air conditioning unit through this filter and mixed with interior air from the cab. To reduce dust in the cab area, use the FRESH AIR option with the A/C on. This pressurizes the cab, forcing dust out and reducing dust coming in.

The FRESH AIR filter is accessible from outside of the cab, at the back between the lights. The filter should be inspected on a regular basis and cleaned/replaced when severely plugged or wet. This is done by removing 6 bolts (3/8”) and removing the air inlet cover. Next remove two nuts (1/4”) and remove the filter box cover. This will allow access to the filter.

WARNING - These filters may require cleaning or replacement more frequently under extreme operating conditions.

2.25

Tigercat 620C Skidder

Controls and operation OPERATOR'S SEAT - MECHANICAL WARNING The seat belt supplied with this seat must be used at all times when operating this machine.

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 in (76 mm).

635C-04

AM/FM STEREO CD With two front mounted speakers. Consult the manufactures instruction manual for additional information.

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).

630-D37

RADIO - CB (IF EQUIPPED) Consult the manufacturer's instruction manual for additional information.

LOCATED IN OPERATOR'S CAB

CHARGE GAUGE

SEAT ADJUSTMENTS

••

•

SHOULDER STRAPS NOT ON ALL MACHINES

PORTABLE FIRE EXTINGUISHER

•

4-WAY LUMBAR VERTICAL ADJUSTMENT

•

4-WAY 4-WAY LUMBAR LUMBAR HORIZONTAL HORIZONTAL ADJUSTMENT ADJUSTMENT

BACK ANGLE ADJUSTMENT KNOB

FIRE EXTINGUISHER, PORTABLE FIRE EXTINGUISHER, PORTABLE 630-D53

•

•

A portable fire extinguisher is located in the 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 also to FIRE PREVENTION in SECTION 1 of THIS MANUAL.

• • RIDE ADJUSTMENT KNOB 332-1

2.26

•

HEIGHT ADJUSTMENT LEVER FORE/AFT SLIDE LEVER

Tigercat 620C Skidder

Controls and operation PROBLEMS AND CORRECTIVE ACTION

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.

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.

4-WAY LUMBAR HORIZONTAL ADJUSTMENT

• •

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 kneeaction movement of the seat. This usually happens because the operator is trying to lower the seat by decreasing the amount of ride adjustment instead of using the Height Adjustment lever. Refer to HEIGHT ADJUSTMENT.

• ARMREST ADJUSTMENT 332-6

VIEW FROM RIGHT REAR OF SEAT

4-WAY ADJUSTABLE LUMBAR To position lumbar mechanism vertically, move vertical adjustment knob up or down. For foreand-aft displacement, rotate horizontal 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.

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.

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.

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.

2.27

Tigercat 620C Skidder

Controls and operation

OPERATOR'S SEAT - AIR RIDE

BACK ANGLE ADJUSTMENT To adjust the backrest lift upwards on the black handle (located on the right side of the seat cushion) while pushing or pulling on the backrest of the seat. Set the backrest to a comfortable position.

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

FORE / AFT SLIDE ADJUSTMENT

ADJUSTMENTS

This seat has approximately 6.5 in (165 mm) of travel. The handle for the fore and aft adjustment is located at the front of the seat underneath the suspension. Simply lift upwards on the black handle, then push back or pull forward on the seat to slide it freely to a new position. Let go of the handle and lock the seat into position. Always test to make sure your seat is locked into place by slightly rocking the seat back and forth.

HEIGHT ADJUSTMENT PROCEDURES The straight air 24v suspension height adjustment is controlled by the air valve switch located on the front middle of the suspension. This suspension can be adjusted to varying heights up to a maximum height of 9.5 in (240 mm).

To Raise To raise simply PUSH IN on the air valve switch.

Air will enter the valve and the suspension will begin to lift. When the seat reaches the desired height let go of the air valve switch.

POD ARMRESTS The pods can be pulled back for better access to the suspension or moved out of the way to make it easier for the operator to get in and out of the machine. In addition the armrest pads can be raised or lowered and moved forward or backwards for operators comfort. Simply turn the black knobs shaped like a star (located under the arm pad on the pod) counter-clockwise to loosen and clockwise to tighten.

To Lower To lower the suspension PULL OUT on the air valve switch. Air will start to escape and the suspension will begin to go lower. When the suspension will not go down any further all the air is out of the suspension.

BACK ANGLE ADJUSTMENT HANDLE

•

•• •

POD ARMRESTS

HEIGHT ADJUSTMENT AIR VALVE SWITCH

•• • ••

SEAT BELT

FORE/AFT SLIDE ADJUSTMENT HANDLE BQ048

SEAT ADJUSTMENTS - AIR RIDE

2.28

Tigercat 620C Skidder

Controls and operation

INFORMATION CENTER IQAN MDM COMPUTER DISPLAY GAUGES SWITCH

Press the top of the GAUGES switch to display the GAUGE MENUS. Refer to INFORMATION CENTER ~ GAUGE MENUS in THIS SECTION.

INFORMATION CENTER IQAN MDM COMPUTER DISPLAY

•

••

630C-241

The GAUGES SWITCH to the left of the IQANMDM display is used to select between the GAUGE MENUS and the SYSTEM DIAGNOSTICS MENUS.

Press the bottom of the GAUGES switch to display the SYSTEM DIAGNOSTICS MENUS. Refer to INFORMATION CENTER ~ SYSTEM DIAGNOSTICS MENUS in THIS SECTION. In addition when the system is in diagnostic mode any active engine codes will be transmitted to the engine warning lights. Refer to READING ENGINE FAULT CODES in SECTION 6 of the SERVICE MANUAL.

INSTRUMENT PANEL

The INFORMATION CENTER display (IQAN- MDM computer display) is the operator interface with the IQAN control system. The IQAN MDM (master display module) is the central unit in the IQAN control system which works as both a master and a display unit.

SCROLL UP/DOWN BUTTON

LCD DISPLAY

•• F1 BUTTON 630C-31

••

•

• •

••

F2 BUTTON

F3 BUTTON

ESCAPE BUTTON

MDM COMPUTER MODULE

The IQAN MDM has a backlit graphic LCD display.

Three function buttons (F1, F2 and F3), a SCROLL UP/DOWN button and an ESCAPE button are used by the operator to move through the menu displays and adjust the settings of the IQAN control system.

2.29

SYSTEM WARNING MESSAGES are displayed on the IQAN-MDM screen whenever an alarm condition is detected, regardless of the position of the GAUGES SWITCH. The alarm warning light on the instrument panel will flash and horn will sound whenever a warning message is shown on the screen. Refer to INFORMATION CENTER ~ SYSTEM WARNING MESSAGES in THIS SECTION. NOTE: The IQAN control system is softwarebased. This software may be updated after the machine is in service as a part of on-going product improvement programs and service newsletters. The information contained in this manual is accurate at the time of printing.

Improvements to the machine and/or software are on-going and may not be covered. In these cases contact your Tigercat dealer for appropriate information.

Tigercat 620C Skidder

Controls and operation

GAUGE MENUS

GAUGES

Press the top of the GAUGES switch to display the gauge menus.

The display will appear as shown. If the display does not appear as shown press the ESCAPE button repeatedly until it does appear as shown.

SCROLL UP/DOWN BUTTON

LCD DISPLAY

630C-28A

•• • F1 BUTTON 630C-31

1. Engine Speed (rpm)

••

This electronic gauge display indicates engine speed in rpm.

• •• F2 BUTTON

• F3 BUTTON

Maintaining Correct Engine RPM It is important that the engine speeds be correct at all times:

ESCAPE BUTTON

MDM COMPUTER MODULE

Cummins QSB Series Engine: 620C Low Idle 950 RPM (No Load) 620C High Idle 2230 RPM (No Load)

Press the F1, F2, or F3 buttons on the IQANMDM display unit to view the GAUGES, HYDRAULICS, or SERVICE gauge displays as indicated on the LCD menu display.

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

Use the F1 or F2 function button to move to the NEXT or PREVIOUS gauge display as indicated on the LCD menu display.

Engine idle speed defaults to 950 rpm when the engine is started.

2.30

Tigercat 620C Skidder

Controls and operation

630C-29

630C-36

2. Engine Temp (°F)

3A. Voltage (volts) EARLIER MACHINES 6200501 TO 6200900

This electronic gauge display indicates the current engine coolant temperature. It should normally indicate between 180°F and 210°F (82°C and 99°C). If temperature goes above 220°F (105°C), alarm will sound (refer to INFORMATION CENTER ~ SYSTEM WARNING MESSAGES ~ ENGINE TEMPERATURE WARNING in THIS SECTION), check the following:

This electronic gauge display indicates voltage levels in the electrical system.

Normal operating range for the electrical system is between 9 and 15 volts.

If voltage goes outside the normal range, an alarm will sound. Refer to INFORMATION CENTER ~ SYSTEM WARNING MESSAGES ~ VOLTAGE WARNING in THIS SECTION.

• Plugged air intake access panel screens

A reading in excess of 15 volts indicates a possible faulty voltage regulator.

• Plugged radiator.

DO NOT continue to operate machine.

A reading less than 9 volts indicates a possible faulty battery or alternator.

Refer to CLEANING A/C CONDENSER AND COOLING ASSEMBLY in THIS SECTION.

IMPORTANT 12 VOLT ELECTRICAL SYSTEM

2.31

Tigercat 620C Skidder

Controls and operation

630C-33

630C-36X

3B. Voltage (volts) LATER MACHINES 6200901 TO 6205000

4. Oil Pressure (psi) This electronic gauge display indicates engine oil pressure.

This electronic gauge display indicates voltage levels in the electrical system.

Normal operating range for the electrical system is between 20 and 30 volts.

The oil pressure reading will either be 0 psi (0 Bar) (engine stopped) or 55 psi (3.8 Bar) (engine running).

If voltage goes outside the normal range, an alarm will sound. Refer to INFORMATION CENTER ~ SYSTEM WARNING MESSAGES ~ VOLTAGE WARNING in THIS SECTION.

If oil pressure falls too low, an alarm will sound. Refer to INFORMATION CENTER ~ SYSTEM WARNING MESSAGES ~ OIL PRESSURE WARNING in THIS SECTION.

A reading in excess of 30 volts indicates a possible faulty voltage regulator.

A reading less than 20 volts indicates a possible faulty battery or alternator.

IMPORTANT 24 VOLT ELECTRICAL SYSTEM 630C-30

5. Fuel Level (%) This electronic gauge display indicates the total amount of fuel in the tanks as a percentage from 0% to 100 % of full. Refer to FUEL TANK in THIS SECTION for tank capacities.

2.32

Tigercat 620C Skidder

Controls and operation

HYDRAULICS

630C-248

630C-34

11. Hyd Oil Temp (°F) This electronic gauge display indicates the current hydraulic oil temperature registered in the main hydraulic tank.

If the temperature goes above 200°F (93°C), alarm will sound (refer to INFORMATION CENTER ~ SYSTEM WARNING MESSAGES ~ HYDRAULIC OIL TEMPERATURE WARNING in THIS SECTION), check the following:

630C-248X

12. Constant Pressure ID This electronic gauge display reads HIGH when the grapple constant pressure switch has been activated. This display reads LOW when grapple constant pressure is released by opening the grapple. Refer to GRAPPLE CONSTANT PRESSURE SWITCH and GRAPPLE OPEN/CLOSE in THIS SECTION.

• Plugged oil cooler • Malfunction in a hydraulic system • High loads on the hydraulic system • Low hydraulic oil level Operation above 200°F (93°C) will shorten hydraulic component life.

If the temperature reaches 200°F (93°C) DO NOT continue to operate the machine.

630C-143

13. Drive PSI Fwd ( psi) This electronic gauge display indicates forward drive pressure.

630C-142

14. Drive PSI Rev ( psi) This electronic gauge display indicates reverse drive pressure.

2.33

Tigercat 620C Skidder

Controls and operation

SERVICE

625C-10 630C-32

23. Drive Motor ( rpm) This electronic gauge display indicates the drive motor speed in rpm.

21. Machine Hours (h) This electronic gauge display indicates the total number of hours the machine has run.

630C-145

24. Boost ( psi)

630C-35

This electronic gauge display indicates air intake manifold boost pressure in psi.

22. Eng % Torque (%) This electronic gauge display indicates the percentage of maximum engine torque being consumed at the current engine rpm level.

With engine speed at IDLE (no load) and hydraulic oil at operating temperature the reading should be: Parking Brake ON ............... 13-16% Readings with the parking brake OFF should be a maximum of 4% higher than the reading with the parking brake ON.

630C-146

25. Fuel Used x10 ( gal)

If the readings are outside this range investigate the cause.

This electronic gauge display indicates the total fuel used during the life of the machine.

Multiply the number on the screen by 10 to calculate the total fuel used by this machine in gallons.

Note: The above readings are at normal operating temperatures. During cold start-ups it is not unusual for readings to be significantly higher until normal operating temperatures are reached.

Example: 500 x 10 = 5000 US gal

2.34

Tigercat 620C Skidder

Controls and operation

630C-147

630C-149

26. Fuel Rate ( gal/h)

29. Fuel Temp ( °F)

This electronic gauge display indicates the current rate of fuel consumption in gallons per hour.

This electronic gauge display indicates the fuel temperature reading.

630C-148

27. Avg Fuel Rate ( gal/h) This electronic gauge display indicates the average fuel consumption rate for the machine since the gauge was last reset.

630C-150

28. CAC Temp ( °F) This electronic gauge display indicates the charge air cooler temperature reading.

2.35

Tigercat 620C Skidder

Controls and operation

SYSTEM DIAGNOSTICS MENUS GAUGES SWITCH

INFORMATION CENTER IQAN MDM COMPUTER DISPLAY

••

•

INSTRUMENT PANEL

630C-241

1014-D001B

The display will appear as shown.

Press the ESCAPE button to display one of 5 menus (MODE, INFORMATION, SETTINGS, MEASURE and PROPERTIES) that access system diagnostics and function adjustment menus.

The display should show the current date and time, software program and version identification.

Use the SCROLL UP/DOWN buttons to scroll through the menus.

Press the bottom of the GAUGES switch to place the IQAN-MDM display in system diagnostics mode.

TIME

SOFTWARE PROGRAM AND VERSION

••

•• •• • F1 BUTTON

630C-65

• •• F2 BUTTON

Use the F1, F2, and F3 buttons to select the highlighted menu options located above each button in the LCD menu display.

SCROLL UP/DOWN BUTTON

DATE

•

Use the ESCAPE button to move back to the previous menu display.

•• •

F3 BUTTON

ESCAPE BUTTON

MDM COMPUTER MODULE

2.36

Tigercat 620C Skidder

Controls and operation

DIAGNOSTICS MENU DESCRIPTIONS

630C-72 630C-70

4. MEASURE MENU DESCRIPTION A. Input channel measurement can be viewed.

1. MODE MENU DESCRIPTION This menu is not used by machine operators for the 620C application at this time.

B. Output channel measurement can be viewed.

C. EVENT COUNTER and HOUR COUNTER can be viewed.

630C-69

2. INFORMATION MENU DESCRIPTION 630C-71

A. Software application information can be displayed, including comments.

5. PROPERTIES MENU DESCRIPTION

B. Module information can be displayed including status, software information and hardware information.

A. Function parameters can be adjusted.

Refer also to INFORMATION CENTER~SYSTEM DIAGNOSTICS MENU~DIAGNOSTICS MENU OPERATION in THIS SECTION.

630C-68

3. SETTINGS MENU DESCRIPTION A. Display CONTRAST can be adjusted.

B. Display BRIGHTNESS can be adjusted.

C. Computer SOUND volumes can be adjusted.

D. Computer DATE and TIME can be adjusted.

2.37

Tigercat 620C Skidder

Controls and operation

DIAGNOSTICS MENU OPERATION

Cancel (F2) or ESC returns the character window to the previous window without saving any new setting.

1. MODE MENU OPERATION This menu is not used by machine operators for the 620C application at this time.

Reset Contrast RESET (F3) resets the character window’s contrast to the preset factory value which corresponds to 30.

2. INFORMATION MENU OPERATION This menu is used by Tigercat service technicians. Refer to SECTION 6 of the SERVICE MANUAL for more information.

B. CHANGE LIGHT (DISPLAY BRIGHTNESS)

3. SETTINGS MENU OPERATION The computer sound volume, display contrast, light, date, time and language can be adjusted in this menu.

A.

CHANGE CONTRAST

630C-27

Press LIGHT (F2) to select the function LCD LIGHT.

630C-68

Press LCD (F1) to select LCD SETTINGS.

630C-73

Change to desired CONTRAST using UP/DN and press OK (F1) to save setting and return to previous menu.

Cancel (F2) or ESC returns the character window to the previous window without saving any new setting.

630C-27

Press CONTRAST (F1) to select the function LCD CONTRAST.

Reset Light RESET (F3) resets the character window’s light to the preset factory value which corresponds to 100.

630C-74

Change to desired CONTRAST using UP/DN and press OK (F1) to save setting and return to previous menu.

2.38

Tigercat 620C Skidder

Controls and operation

C. SOUND SETTINGS

CHANGE BUTTON SOUND

Adjusting BUZZER VOLUME and change BUTTON SOUND.

1014-D110

Press SOUND (F1) to select the function SOUND SETTINGS.

1014-D110

To shift to the tab SOUND, press MORE (F3).

Press SOUND (F1) to select the function SOUND SETTINGS. CHANGE ALARM VOLUME

630C-75

Press BUTTON (F2) to select the function to change the button sound.

630C-75

Press ALARM (F1) to select the function for setting the volume for the alarm signal.

630C-77

Change to desired BUTTON SOUND using UP/DN. There are Ten button beep levels. 0 implies that the button beep is turned OFF. 100 is the loudest. Thereafter, press OK (F1) to save setting and return to previous menu.

630C-76

Change to desired VOLUME using UP/DN. There are Ten volume levels. 0 implies that sound is turned OFF. 100 is the loudest.

Thereafter, press OK (F1) to save setting and return to previous menu.

Cancel (F2) or ESC returns the character window to the previous menu without saving any new setting.

Reset the Volume

Cancel (F2) or ESC returns the character window to the previous menu without saving any new setting.

Reset the Volume RESET (F3) resets the alarm volume to the preset factory value which corresponds to 50.

2.39

RESET (F3) resets the alarm volume to the preset factory value which corresponds to 50.

Tigercat 620C Skidder D. DATE TIME SETTINGS

Controls and operation 4. MEASURE MENU OPERATION This menu is used by Tigercat service technicians. Refer to SECTION 6 of the SERVICE MANUAL for more information.

5. PROPERTIES MENU OPERATION A. ADJUST FUNCTION PARAMETERS

630C-68

To shift to the tab SET CLOCK, press MORE (F3).

Adjusting function parameters is normally used only by qualified Tigercat service technicians.

Do NOT attempt to adjust the function parameter without proper training or specific instructions from a service technician.

Auto RPM: 1.0 (function enabled) * 0.0 (function disabled) Pump Max Current: 625 ma* (1250 ma earlier machines) Motor Max Current: 980 ma*

1014-D110

Press SET CLOCK (F2) to select the function for setting the DATE and TIME.

Program Mode: 1 Normal mode* 2 HP Test mode** 3 Motor setup mode** 4 POR setup mode** Clean Frequency: 30 minutes* Clean Duration (earlier machines programs): 10 seconds* Fan Auto Clean (later machine programs): 1* (ON for normal operation) 0 (OFF for service procedures)

630C-78

Browse using UP/DN and thereafter press SELECT (F1) to select alternative from list.

YEAR - MONTH - DAY - HOUR - MINUTE

* NOTE: Factory default settings are marked.

Pump max current and motor max current values may vary slightly from the factory default value given as these settings are factory adjusted for optimum calibration of the drive pump and motor.

IMPORTANT Machine must be in Program Mode 1 (Normal mode) to operate normally.

630C-78A

Change to desired value using UP/DN and press OK (F1) to save setting and return to previous menu.

Cancel (F2) or ESC returns the character window to the previous menu without saving any new setting.

2.40

Program modes 2,3 and 4 are used for service/setup procedures only.

When program modes 2,3 and 4 are used a "For Service Use Only" warning message is shown on the electronic display, an alarm will sound and the alarm warning light will flash. In addition the arch and boom are deactivated in program modes 2,3 and 4.

Tigercat 620C Skidder

Controls and operation

**NOTE: When program modes 2,3 and 4 are used a "For Service Use Only" warning message is shown on the electronic display, an alarm will sound and the alarm warning light will flash. In addition the arch and boom are deactivated in program modes 2,3 and 4.

EXAMPLE: 620C-75

Use UP/DOWN scroll buttons adjust parameter setting.

620C-72

Press OTHER(F3) to select other properties for adjustment.

Use UP/DOWN scroll buttons to select type of output you wish to adjust.

620C-76

Select OK (F1) to confirm new setting.

620C-73

Press SELECT (F1) to select.

Use UP/DOWN scroll buttons to select the output you wish to adjust.

620C-74

Press SELECT(F1) to select a function parameter for adjustment.

2.41

Tigercat 620C Skidder

Controls and operation

SYSTEM WARNING MESSAGES When system warning messages are displayed the alarm warning light will flash and horn will sound. All system warning messages are logged and recorded by the IQAN system for use by Tigercat service technicians. Operator's should respond to all warning messages immediately by bringing the machine to a safe stop and investigating the cause of the alarm.

620C-43

The alarm can be acknowledged by pressing OK (F1), if applicable. Note that acknowledging the warning message does not address the cause of the alarm. Ignoring system warning messages may result in component damage and/or subsequent malfunction. In addition ignoring system warning messages may also affect warranty claims. All warning messages should be addressed immediately to help ensure the efficient long term operation of the machine and avoid costly repairs.

the module is the source of the problem.

To greatly reduce the time required to diagnose a MODULE IS OFFLINE warning, it is recommended that all available modules ALWAYS be set to ENABLED as shown. This screen is accessed through the INFORMATION MENU which should normally be accessed by Tigercat service technicians only. Refer to SECTION 6 of the SERVICE MANUAL for more information.

MODULE IS OFFLINE SYSTEM WARNING

CAUTION Do not make adjustments in this menu.

Machine service indicators can be affected.

620C-45

The MODULE IS OFFLINE warning message indicates a loss of communication with or power to an IQAN module. The offline module is identified on the display screen.

630C-117

1. OIL PRESSURE WARNING

When a module goes offline all machine functions controlled by that module cease and all alarms and warnings associated with that module are triggered. If the problem is with the CAN wires all modules beyond the problem module will also be affected.

This warning will be displayed, alarm warning light will flash and horn will sound when engine oil pressure falls below 10psi (0.7Bar).

Stop the engine when this alarm is activated.

Check engine oil levels. See OPERATING MACHINE in this SECTION for more information.

NOTE: It is possible for an operator or service technician to disable this warning message. If the MODULE IS OFFLINE warning function is disabled for a module the first indication of a loss of communication or power to a module will be the loss of all machine functions controlled by the module and the triggering of all alarms and warnings associated with that module. This may cause problems in identifying the source of a control problem, as it will not be immediately obvious that a loss of communication or power to

2.42

Tigercat 620C Skidder

Controls and operation

630C-119

630C-121

2. HYDRAULIC OIL TEMPERATURE WARNING

4. LOW COOLANT LEVEL WARNING

This warning will be displayed, alarm warning light will flash and horn will sound when the oil temperature exceeds normal operating temperatures.

This warning will be displayed, alarm warning light will flash and horn will sound when the coolant level drops below a safe operating level. The sensor is located in the surge tank.

If this light comes on when the engine is running, stop the engine immediately and correct the fault. With engine running, top up radiator using correct solution of coolant antifreeze. Refer to SERVICE AND LUBRICATION POINTS CHART in SECTION 3 of THIS MANUAL.

If the temperature goes above 200°F (93°C) check the following: • Plugged oil cooler • Malfunction in a hydraulic system • High loads on the hydraulic system • Low hydraulic oil level Operation above 200°F (93°C) will shorten hydraulic component life.

WARNING

If the temperature reaches 200°F (93°C) DO NOT continue to operate the machine.

DO NOT remove the radiator cap when the engine is hot, release of pressurized coolant can cause serious burns.

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

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

630C-120

3. HYDRAULIC OIL LEVEL LOW WARNING This warning will be displayed, alarm warning light will flash and horn will sound when the main hydraulic tank oil level is low.

Stop the engine immediately when this alarm is activated. Operating machine with a low hydraulic oil level can cause hydraulic pumps to fail.

When this alarm is activated stop the engine and look for signs of broken hoses or other leaks. Repair leaks and refill the main hydraulic tank to FULL mark on the sight gauge. Restart engine and inspect for leaks.

2.43

Tigercat 620C Skidder

Controls and operation

630C-122

630C-123

5. WINCH FREESPOOL ON WARNING

7A. VOLTAGE WARNING EARLIER MACHINES 6200501 TO 6200900

This warning will be displayed, alarm warning light will flash and horn will sound whenever the winch control switch is in the FREE SPOOL position. Refer also to WINCH CONTROL SWITCH in THIS SECTION.

This warning will be displayed, alarm warning light will flash and horn will sound when voltage readings of less than 9 volts or greater than 15 volts are detected.

When this alarm is activated investigate the cause immediately.

IMPORTANT 12 VOLT ELECTRICAL SYSTEM

630C-118

6. ENGINE TEMPERATURE WARNING This warning will be displayed, alarm warning light will flash and horn will sound when engine temperature exceeds 220°F (104°C).

630C-122X

When this alarm is activated check for plugged air intake access panel screens or plugged radiator. DO NOT continue to operate machine. Refer to CLEANING A/C CONDENSER AND COOLING ASSEMBLY in THIS SECTION.

7B. VOLTAGE WARNING LATER MACHINES 6200901 TO 6205000 This warning will be displayed, alarm warning light will flash and horn will sound when voltage readings of less than 20 volts or greater than 30 volts are detected.

When this alarm is activated investigate the cause immediately.

IMPORTANT 24 VOLT ELECTRICAL SYSTEM

2.44

Tigercat 620C Skidder

Controls and operation

630C-210

630C-209

9. CHARGE FILTER IN BYPASS WARNING

8. AXLE FILTER IN BYPASS WARNING This warning will be displayed when an oil flow restriction in excess of 50 psi (3.5 Bar) is encountered at the axle filter. This pressure build up also opens the filter bypass valve in the filter head allowing oil to bypass the filter element.

This warning will be displayed when an oil flow restriction in excess of 50 psi (3.5 Bar) is encountered at the hydrostatic oil charge filter. This pressure build up also opens the filter bypass valve in the filter head allowing oil to bypass the filter element.

When this happens the filter requires immediate service. When axle filter is in bypass differential locks function is not available. If alarm sounds during cold startups, the engine speed should be reduced and the warm-up procedure continued. Note that the bypass warning will only be displayed when hydraulic oil temperature is above 75°F (24°C) and the filter is in bypass mode.

When this happens the filter requires immediate service. If alarm sounds during cold start-ups, the engine speed should be reduced and the warm-up procedure continued. Note that the bypass warning will only be displayed when hydraulic oil temperature is above 75°F (24°C) and the filter is in bypass mode.

2.45

Tigercat 620C Skidder

Controls and operation IMPORTANT Machine must be in Program Mode 1 (Normal mode) to operate normally.

Program modes 2,3 and 4 are used for service/setup procedures only.

When program modes 2,3 and 4 are used a "For Service Use Only" warning message is shown on the electronic display, an alarm will sound and the alarm warning light will flash. In addition the arch and boom are deactivated in program modes 2,3 and 4.

610-20-2

610-20-3

610-20-4

10. FOR SERVICE USE ONLY WARNING One of these warnings will be displayed when the machine is placed in a service program mode: HP Test mode (Program Mode 2) Motor Setup mode (Program Mode 3) POR setup mode (Program Mode 4) Program modes 2, 3 and 4 are intended for setup and testing and should only be used by qualified Tigercat service technicians or on specific instructions from a service technician.

Note also that the arch and boom are deactivated in program modes 2, 3 and 4.

For more information on the Program Mode function parameter refer to INFORMATION CENTER -IQAN MDM COMPUTER DISPLAY~SYSTEM DIAGNOSTICS MENUS~DIAGNOSTICS MENU OPERATION~PROPERTIES MENU OPERATION in THIS SECTION.

2.46

Tigercat 620C Skidder

Controls and operation

630C-250

13. FUEL LEVEL LOW

11. AIR INTAKE RESTRICTED SERVICE INTAKE TO CORRECT

This warning will be displayed when the fuel level falls below 2% of full. Refer to FUEL TANK in SECTION 2 of the OPERATOR’S MANUAL for tank capacities.

This warning will be displayed when a signal is received from the restriction indicator switch (if equipped) on the engine air cleaner.

Later machines (6200901 TO 6205000) are factory equipped with a restriction indicator switch.

When this happens the engine air cleaner requires immediate service. Refer to AIR CLEANER MAINTENANCE in SECTION 3 of THIS MANUAL.

14. CHARGE PRESSURE LOW WARNING This warning will be displayed when charge pressure falls below 250 psi (17 Bar). The charge pressure is monitored at the forward and reverse pressure sensors on the drive pump.

12. BRAKE PRESSURE LOW

When this warning is activated check the charge filter for proper operation then, if necessary, check the charge pressure using a gauge. Refer to DRIVE PUMP PRESSURE CHECKS in SECTION 8 of THIS MANUAL. Refer also to CHARGE FILTER BYPASS WARNING in THIS SECTION.

This warning will be displayed when service brake pressure falls below 800 psi (55 Bar).

When this warning is activated first check for leaks in the brake circuit. If no leaks are found check for proper operation of the brake pressure section of the control valve and check the brake pressure sensor for proper operation. For more information about the service brake circuit refer to SECTION 9 in THIS MANUAL.

2.47

Tigercat 620C Skidder

Controls and operation

CHASSIS BOLT ON ACCESS PANELS

• • •

•• 620C-30

ACCESS PANELS RIGHT SIDE (6200501 TO 6201159)

BOLTS

BOLT ON ACCESS PANELS

••

••

••

QUICK ACCESS DOORS

•• 620C-02

••

FRONT DOOR

DOORS AND ACCESS PANELS FRONT DOOR

ACCESS PANELS RIGHT SIDE (6201160 TO 6205000)

TO OPEN:

620C-94

Park machine on level ground and lower the grapple and dozer to the ground.

ACCESS PANELS This machine is equipped with bolt on access panels to provide service access to the cooling assembly.

Remove the two bolts from the left side of the door and swing open.

When the maintenance is complete, close the door and reinstall bolts.

Do not operate DOZER with door open.

If the ground is not level, ensure that the door swings towards the downhill side to prevent it from swinging closed on the operator/mechanic.

CAUTION Park on level ground to prevent unexpected door closing.

2.48

Tigercat 620C Skidder

BOLT ON ACCESS PANELS

Controls and operation

••

••

••

QUICK ACCESS LIFT OUT PANEL WITH T-HANDLE

••

•• 620C-31

••

BOLT ON ACCESS PANELS

•• ••

THREE BOLTS INSTALLED ON QUICK ACCESS PANEL FOR TRANSPORT ONLY

QUICK ACCESS DOOR

• ACCESS PANELS LEFT SIDE (6200501 TO 6200949) 625C-11

ACCESS PANELS LEFT SIDE (6200950 TO 62001159)

QUICK ACCESS LIFT OUT PANEL ((6200501 TO 6200949) One panel on the left hand side of the machine has a T-handle for quick access to the engine for routine daily maintenance. Note that three bolts are installed on the quick access panel for transport of the machine.

•• ••

QUICK ACCESS DOORS

CAUTION The engine compartment access panels are bolted in place, with the exception of the quick access panel(s). Whenever bolts are removed panels can fall during the process of removing them from the machine.

On earlier machines, once the UPPER DOOR is removed (and the bolts on the lower panel removed) 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 LOWER PANELS with bolts removed as hand grips, when servicing the machine.

620C-93

ACCESS PANELS LEFT SIDE (6201160 TO 6205000)

QUICK ACCESS DOORS (LATER MACHINES) Quick access doors provide access to the engine for routine daily maintenance. To avoid damage always ensure doors are shut before operating the machine.

2.49

Tigercat 620C Skidder

Controls and operation

DIPSTICK

•

620C-80

FILLER SCREEN

FUEL TANK

•

FUEL TANK Located in the rear chassis, the fuel reservoir consists of two tanks interconnected. There is one filling location (right tank) with a dipstick under the filler cap.

The filler tube also contains a fuel tank filler screen. 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.

604-03

A sending unit is installed and connected to the information center display on the instrument panel. The standard fuel tank has a capacity of 81 US gal (307 L).

On earlier machines there are also two optional high capacity fuel tanks available for machines without winches. One is an add-on 44 US gal (166 L) auxiliary tank. The other is a single 133 US gal (503 L) replacement tank.

On later machines there is a high capacity fuel tank available for machines without winches. It is a single 145 US gal (548 L) replacement tank.

2.50

FUEL TANK FILLER SCREEN AND DIPSTICK

Tigercat 620C Skidder

Controls and operation

BATTERY DISCONNECT SWITCH EARLIER MACHINES

BATTERY DISCONNECT SWITCH

•

BATTERY DISCONNECT SWITCH LEFT SIDE ENGINE COMPARTMENT EARLIER MACHINES 6200501 TO 6200700 Located in engine compartment on the left side of the machine, this switch is wired to the negative side of the battery. When in the OFF position it completely disconnects all the machine's electrical circuits from the battery.

620C-03

LATER MACHINES

••

620C-78

BATTERY DISCONNECT SWITCH

BATTERY DISCONNECT SWITCH LEFT SIDE ENGINE COMPARTMENT

LATER MACHINES 6200701 TO 6205000 Located in engine compartment on the left side of the machine, this switch is wired to the positive side of the battery. When in the OFF position it completely disconnects all the machine's electrical circuits from the battery and isolates the engine control module (ECM) power fuses.

2.51

Tigercat 620C Skidder

•• TRANSMISSION OIL FILL LOCATION

Controls and operation

•• TRANSMISSION DIPSTICK

BELOW RIGHT HAND CAB DOOR

620C-04

TRANSMISSION DIPSTICK AND FILL LOCATION

TRANSMISSION DIPSTICK The transmission dipstick is located below the right hand cab door.

TRANSMISSION OIL FILL LOCATION The transmission oil fill is located below the right hand cab door.

2.52

Tigercat 620C Skidder

Controls and operation

PRESSURIZED WATER SYSTEM WATER TANK

•

••

WATER CONTROL VALVE

•

DOZER BLADE

••

HOSE STORAGE COMPARTMENT

620C-41

PRESSURIZED WATER SYSTEM A water tank is incorporated into the dozer blade and is pressurized to 60 psi (4 Bar). A valve controls the flow of water from the tank to a hose located in the hose storage compartment on the dozer blade.

The control valve incorporates an air charge valve, a pressure gauge and a relief valve on the outlet side of the valve. A ball valve is installed on the outlet side of the valve and is used to shut off the water supply to the hose. This ball valve should be in the OFF position when the system is not in use.

The pressure gauge on the valve should read 60 psi (4 Bar) check system pressure daily. Refer to PRESSURIZED WATER SYSTEM MAINTENANCE in SECTION 3.

All handles should be hand tight only at all times. This is particularly important for easy access to the pressurized water system in the event of a fire or other emergency.

20231A R1

Refer also to FIRE PREVENTION in SECTION 1 of THIS MANUAL.

2.53

Tigercat 620C Skidder

Controls and operation

ENGINE AIR CLEANER AIR INLET HOOD (IF EQUIPPED)

3

3

The optional air inlet hood protects the air inlet from rain, snow and debris. The air inlet hood should be checked every 8 hours to make sure that foreign materials have not plugged air inlet area. Clean as required.

4

2

ENGINE AIR PRECLEANER

1 5

• 630C-19

AIR CLEANER

make sure that foreign materials have not plugged the intake area or the discharge louver area. Clean as required.

•

OPERATION: 1. Air enters the precleaner.

2. Specially designed vanes move dirty air toward the impeller.

3. The spinning impeller spins the air creating centrifugal force to separate contaminants from the clean air.

4. Contaminants are blown out the discharge louver.

5. Clean air enters the intake to the air cleaner.

AIR CLEANER UNLOADER VALVE

• ENGINE AIR CLEANER EARLIER MACHINES (6200501 TO 6200900)

620C-05

••

CENTRI® PRECLEANER OPERATION

ENGINE AIR PRECLEANER

IMPORTANT AIR INLET HOOD

The air inlet hood or air precleaner must be check every 8 hours and cleaned as required.

AIR CLEANER

••

If the inlet/precleaner is plugged causing a restriction to airflow, reduced engine performance and increased fuel consumption may result.

AIR CLEANER UNLOADER VALVE

• 620C-84

If a plugged inlet/precleaner is left too long excessive air intake restriction may damage the rubber air intake tube. A damaged air intake tube will lead to ingestion of dirt into the engine which may result in engine failure.

ENGINE AIR CLEANER LATER MACHINES (6200901 TO 6205000)

Note that the air filter restriction indicator may not function properly if the air intake tube is damaged.

AIR PRECLEANER (IF EQUIPPED) The optional 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. The air precleaner should be checked every 8 hours to

Engine failures due to improper maintenance are not covered by Tigercat or Engine Manufacturer’s Warranty and any such claim will be denied.

2.54

Tigercat 620C Skidder

Controls and operation

IMPORTANT

FILTER RESTRICTION INDICATOR

For peak engine performance and maximum fuel economy, please ensure that the air inlet hood or air precleaner is regularly checked and cleaned as required. All intake air tubes and clamps should be thoroughly inspected on a regular basis and any damaged or missing components should be replaced immediately.

•

AIR CLEANER

••

• ENGINE AIR PRECLEANER

AIR CLEANER The air cleaner on this machine uses two filter elements, a primary element and a safety element accessible from the left side of the engine compartment.

ENGINE AIR CLEANER EARLIER MACHINES (6200501 TO 6200900)

620C-06

FILTER RESTRICTION SWITCH (IF EQUIPPED) FILTER RESTRICTION INDICATOR

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

A filter restriction indicator is mounted to the output side of the filter, this should show green when the engine is running under load. Service is required if the indicator shows red. Later machines may be equipped with a switch used to send a signal to the computer control system in the event of a filter restriction.

•• •

AIR CLEANER

AIR CLEANER UNLOADER VALVE

620C-85

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

If it is plugged, be sure to check the filter elements as they may need replacing as well.

Reattach the valve to the tube.

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

Refer also to AIR CLEANER MAINTENANCE in SECTION 3 of THIS MANUAL.

2.55

• ENGINE AIR CLEANER LATER MACHINES (6200901 TO 6205000)

• ENGINE AIR PRECLEANER

Tigercat 620C Skidder

Controls and operation

MAIN HYDRAULIC OIL TANK Located at the rear of the engine compartment, the hydraulic tank has a capacity of 26.4 US gal (100 L).

A sight gauge accessible through the left rear access panel, indicates the HIGH and LOW level of the main hydraulic oil tank.

The charge circuit contains a single element, full flow, Tigercat hydraulic filter with a restriction indicator sending unit and a third port bypass valve.

For additional information on these filters refer to FILTERS and SERVICE AND LUBRICATION POINTS in SECTION 3.

Always keep the hydraulic oil level between the HIGH and LOW calibrations. A low hydraulic oil level can result in severe damage to pumps.

••

A hydraulic oil level switch is connected to the IQAN computer control system. This switch triggers the hydraulic oil level low warning. Refer also to INFORMATION CENTER ~ SYSTEM WARNING MESSAGES in THIS SECTION.

SHUT-OFF VALVE IN OFF POSITION

••

BREATHER

DOUBLE ELEMENT FILTER

HAND FILL PUMP

•

•

•

•

HYDRAULIC TANK

TO TANK VIA FILTERS

BLUE ELEMENT

•

• HYDRAULIC HAND FILL PUMP

SIGHT GAUGE

•

•

•

AXLE FILTER

• 620C-07B

•

HYDRAULIC TANK, FILTERS AND SIGHT GAUGE

HYDRAULIC HAND FILL PUMP

CHARGE PRESSURE FILTER

620C-07B

QUICK CONNECT TO SUCTION HOSE (STORED IN STEP COMPARTMENT BELOW LEFT HAND CAB DOOR)

The hydraulic hand fill pump, located on the front of the hydraulic tank (right side access), is used to add oil to the hydraulic oil tank. Refer to APPROVED HYDRAULIC OILS ~MAIN HYDRAULIC SYSTEM in SECTION 3 of THIS MANUAL.

HYDRAULIC TANK, FILTERS AND SIGHT GAUGE

HYDRAULIC FILTERS

TO ADD OIL TO THE MAIN HYDRAULIC TANK:

The hydraulic cooling circuit contains a two element, full flow, 7 micron filter with a built in restriction indicator and a 25 psi (1.7 Bar) bypass valve. It is recommended that all machines use two different filter elements: 1 blue, Tigercat water absorbing, full flow hydraulic oil filter element.

1 white, Tigercat high performance, full flow hydraulic oil filter element.

2.56

Park machine on level ground, lower dozer blade and grapple onto the ground. Open right rear engine compartment access panels. Get the hydraulic oil fill suction hose from its storage location in the step compartment below the left cab door. Clean the suction hose, connect to hydraulic hand pump and remove cap. Open oil fill shut-off valve, insert end of suction tube into supply drum and operate pump. The oil is pumped directly into the hydraulic tank via the

Tigercat 620C Skidder

Controls and operation AXLE CIRCUIT RESERVOIR ~ IN FRONT AXLE

IMPORTANT

The 620C is equipped with an axle hydraulic circuit which is completely separate from all other hydraulic circuits. The front axle acts as a reservoir for the axle circuit.

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 SECTION 3 of THIS MANUAL. Use of hydraulic filters other than the Tigercat brand could lead to severe wear and rapid failure of hydraulic system components.

Always keep the axle hydraulic circuit filled to the correct level. A low axle hydraulic oil level can result in severe damage to the axle pump.

Refer also AXLE OIL LEVEL CHECK AND AXLE CIRCUIT FILL in SECTION 3 of THIS MANUAL. AXLE PRESSURE FILTER The hydraulic axle circuit is equipped with a full flow pressure filter with a 50 psi (3.5 Bar) bypass valve and a restriction indicator sending unit.

When a restriction is encountered the bypass valve diverts oil back to the axle circuit reservoir in the front axle to prevent unfiltered oil from entering the axle circuit.

HYDRAULIC OIL FILL SUCTION HOSE STORAGE LOCATION

•

For additional information about this filter refer to FILTERS and SERVICE AND LUBRICATION POINTS in SECTION 3.

TO ADD OIL TO THE AXLE CIRCUIT Refer to AXLE OIL LEVEL CHECK AND AXLE CIRCUIT FILL in SECTION 3 of THIS MANUAL.

620C-27

Refer also to APPROVED HYDRAULIC OILS ~AXLE CIRCUIT in SECTION 3 of THIS MANUAL.

HYDRAULIC OIL FILL SUCTION HOSE STORAGE LOCATION BELOW LEFT HAND CAB DOOR

IMPORTANT

double element filter. The pump should always be operated at a medium speed with a steady motion.

Note that the 620C skidder has two separate hydraulic systems (the main hydraulic system and the axle circuit). These two hydraulic systems require two different types of hydraulic oil that MUST NOT BE INTERCHANGED under any circumstances.

IMPORTANT: Close shut-off valve after filling.

Replace cap on suction tube, wipe dry, disconnect and store. Swing pump handle up and lock.

Replace all access covers.

Always use the correct type of hydraulic oil for the circuit you are filling. Refer to APPROVED HYDRAULIC OILS in SECTION 3 of THIS MANUAL.

2.57

Tigercat 620C Skidder

Controls and operation

OPERATING MACHINE Before operating this machine, ensure that the proper lubrication and maintenance schedule has been performed as outlined in SECTION 3 of THIS MANUAL. For the Diesel Engine supplied with this machine, refer to the engine manufacturer's operating manual.

Any personnel who are to operate this machine must be fully trained in safety and operating procedures by a competent person.

630C-43

PARKING BRAKE ~ ENGAGED POSITION

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

Read and understand the entire manual before operating the machine.

PRE-START CHECKS:

••

IQAN MDM COMPUTER DISPLAY

620C-80

630C-5XX

FUEL TANK 3. Check fuel sight gauge. Refer to FUEL TANK in THIS SECTION for standard tank capacity information.

IGNITION IN THE RUN POSITION

1. Place the ignition switch in the RUN position (engine NOT running). Check for any alarms noted on the IQAN MDM computer display and investigate the cause. Refer to INFORMATION CENTER ~ SYSTEM DIAGNOSTICS MENUS in THIS SECTION.

SIGHT GAUGE

••

630C-55

620C-20

IGNITION IN THE OFF POSITION

MAIN HYDRAULIC OIL SIGHT GAUGE

4. Check main hydraulic tank oil level, the level should be between the HIGH and LOW marks on the level gauge.

When computer checks are complete place ignition switch in the OFF position.

2.58

Tigercat 620C Skidder

Controls and operation

DIPSTICK

•• FUEL WATER SEPARATOR (ENGINE)

LEFT SIDE OF ENGINE

620C-08

ENGINE OIL LEVEL EARLIER MACHINES (6200501 TO 6200900)

• DRAIN TAP

•

620C-09

FUEL WATER SEPARATOR EARLIER MACHINES (6200501 TO 6200900)

DIPSTICK FUEL FILTER

•

• LEFT SIDE OF ENGINE

FUEL FILTER/ WATER SEPARATOR

ENGINE OIL LEVEL LATER MACHINES (6200901 TO 6205000)

620C-81

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

• DRAIN TAP

•

••

•• 620C-82

TRANSMISSION OIL FILL LOCATION

7. Drain water from fuel line water separator.

TRANSMISSION DIPSTICK

BELOW RIGHT HAND CAB DOOR

620C-04

FUEL WATER SEPARATOR LATER MACHINES (6200901 TO 6205000)

TRANSMISSION DIPSTICK AND FILL LOCATION

6. Check transmission oil level. The level of the oil must be between the ADD and the FULL marks on the dipstick.

2.59

Tigercat 620C Skidder

Controls and operation

•

WARNING

ENGINE AIR PRECLEANER

AIR INLET HOOD AIR CLEANER

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

• AIR CLEANER UNLOADER VALVE

• FILLER CAP 620C-84

ENGINE AIR CLEANER

10. Check air inlet hood (if equipped) for foreign material buildup in the inlet area.

•

Check air intake precleaner (if equipped) for foreign material build-up in air intake area or discharge louver area.

ENGINE COOLANT LEVEL 8. Check the engine coolant level.

620C-36

11. Check air cleaner unloader valve FILTER RESTRICTION SWITCH (IF EQUIPPED) FILTER RESTRICTION INDICATOR

A/C COMPRESSOR BELT

•• •

•• AIR CLEANER

SERPENTINE BELT

• 620C-85

•

• ENGINE AIR PRECLEANER

ENGINE AIR CLEANER

12. Check engine air cleaner restriction indicator.

IMPORTANT 620C-83

CHECK CONDITION OF ENGINE BELTS

For peak engine performance and maximum fuel economy, please ensure that the air inlet hood or air precleaner is regularly checked and cleaned as required. All intake air tubes and clamps should be thoroughly inspected on a regular basis and any damaged or missing components should be replaced immediately.

9. Check tension and condition of all engine belts.

2.60

Tigercat 620C Skidder

Controls and operation WATER TANK

IMPORTANT The air inlet hood or air precleaner must be check every 8 hours and cleaned as required.

•

If the inlet/precleaner is plugged causing a restriction to airflow, reduced engine performance and increased fuel consumption may result.

WATER CONTROL VALVE

••

•

DOZER BLADE

••

If a plugged inlet/precleaner is left too long excessive air intake restriction may damage the rubber air intake tube. A damaged air intake tube will lead to ingestion of dirt into the engine which may result in engine failure.

HOSE STORAGE COMPARTMENT

Note that the air filter restriction indicator may not function properly if the air intake tube is damaged.

620C-41

PRESSURIZED WATER SYSTEM

14. Check pressurized water system. The pressure gauge should read 60 psi. This system should be tested once every month.

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

Engine failures due to improper maintenance are not covered by Tigercat or Engine Manufacturer’s Warranty and any such claim will be denied.

15. Perform SCHEDULED MAINTENANCE as shown in SECTION 3 of THIS MANUAL. 16. Inspect machine for leaks , damaged or loose components and any other abnormal conditions.

17. Check tire pressures.

18. Check wheel bolts for tightness.

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

IMPORTANT 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.

CLEAN RADIATOR, OIL COOLER, CAC AND A/C CONDENSER 13. Clean radiator, oil cooler, CAC (charge air cooler) and A/C condenser. Remove debris from front door and screened access panels on both sides of the machine.

620C-10

20. Unlock all cab doors.

Refer to CLEANING A/C CONDENSER AND COOLING ASSEMBLY in THIS SECTION.

2.61

Tigercat 620C Skidder

Controls and operation

STARTING ENGINE

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.

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

3. Set parking brake ON.

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

NOTE: The engine will not turn over unless the parking brake is ON. 4. Turn ignition switch to the RUN position. All engine warning lights will come on. The wait to start light should be the last to go out.

Always wait until the wait to start warning light goes out before proceeding.

WARNING When starting the engine the travel/engine speed pedals are partially deactivated (throttle function only available ~ travel function deactivated with parking brake ON), but the dozer, steer, winch and grapple functions can be activated immediately after start-up by touching the controls.

Do not activate these controls during start-up as immediate movement of the function(s) will occur.

5. Turn ignition switch to the START position to crank engine.

6. When engine starts, release ignition key to RUN position.

If any of the engine warning lights remain lit investigate the cause and take corrective action. Refer to ENGINE WARNING LIGHTS in THIS SECTION.

If engine stalls while operating the machine, turn the ignition key to the OFF position and REPEAT STEPS (1) THROUGH (6).

7. Engine idle speed setting will automatically default to LOW IDLE. Keep engine speed low until engine oil pressure registers on the gauge (IQAN-MDM display). Low engine oil pressure will trigger an oil pressure warning alarm.

8. Before applying any load to the engine proceed with SYSTEM TEST AND WARMUP.

IMPORTANT • After engine has started, keep engine speed low until engine oil pressure registers on gauge (IQAN-MDM display). If engine oil pressure does not register within 10 seconds, stop engine and investigate cause.

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.

2.62

Tigercat 620C Skidder

Controls and operation

RESTARTING AN ENGINE THAT HAS RUN OUT OF FUEL

STARTING IN COLD WEATHER Cold temperatures may require the use of the engine block heater and the engine oil pan heater.

If the engine runs out of fuel, the fuel line is self priming.

1. Refill fuel tank completely.

The 620C engine is equipped with an intake air heater with a grid element.

2. Turn ignition switch to the RUN position. All engine warning lights will come on. The wait to start light should be the last to go out.

Always wait until the wait to start warning light goes out before proceeding.

CAUTION: Using starting fluid (or ether start aids) on an engine equipped with a grid heater element can cause an explosion. NEVER USE STARTING FLUIDS on an engine equipped with a grid heater element.

If any of the remaining four engine warning lights remain lit investigate the cause and take corrective action. Refer to ENGINE WARNING LIGHTS in THIS SECTION.

WARNING To avoid engine damage DO NOT USE STARTING FLUIDS. This engine is equipped with an intake air heater with a grid element. Using starting fluid can cause an explosion.

3. Turn ignition switch to the START position to crank engine.

If it fails to start after 20 seconds, stop and wait for 2 minutes before trying again.

4. When engine starts, release ignition key to RUN position.

The grid element preheats engine intake air during cold starts. The wait to start warning light is illuminated for the duration of the preheating phase of engine startup. To minimize cranking time during cold weather startups the ALWAYS wait for the wait to start warning light to go out before cranking the engine. Before applying any load to the engine proceed with SYSTEM TEST AND WARM-UP.

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 manufacturers operator's manual.

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 manufacturers operator's manual.

IMPORTANT Cold startups can result in pump failure, refer to "APPROVED HYDRAULIC OILS" in SECTION 3 for recommended oil viscosities and temperature ranges.

2.63

Tigercat 620C Skidder

Controls and operation

SYSTEM TEST AND WARM-UP

(k) Put the parking brake ON.

Before commencing skidding operations, follow steps (a) thru (m) to accomplish the following:

(l) Decrease engine idle speed to LOW IDLE.

• Warm up the hydraulic system.

CAUTION

• Test all systems for proper operation.

• Inspect for hydraulic oil leaks.

Ensure that the machine was parked on level ground at last shutdown: (a) Start engine.

Never use your bare hand to check for fluid leaks.

Fluid leaks under pressure may not be visible. When searching for leaks, wear work gloves and use a wrench or piece of wood to move hydraulic hoses. Do not grab hold of hydraulic hoses. Wear safety goggles for eye protection.

(b) Ensure gauges (IQAN-MDM displays) and warning lights are indicating normal operating conditions. (c) Check that all personnel are clear of the machine. (d) Slowly raise and lower the arch, check for proper operation.

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

With the grapple and dozer raised slightly off the ground: (e) Operate the grapple arms and check for proper operation. (f) Rotate grapple in each direction for several revolutions and check that it is operating correctly. (g) Raise and lower dozer blade (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 (d) "thru" (h) several times. As the hydraulic system warms up, engine speed can be increased gradually to the HIGH IDLE. (j) Observe all operations. If any operations are not functioning as they should, take the necessary steps to correct the problem.

After completion of the warm-up and system testing, lower the dozer blade and grapple to the ground.

2.64

Tigercat 620C Skidder

Controls and operation

STOPPING ENGINE:

TRAVELLING WITHOUT A LOAD: Raise the grapple and place the dozer blade in the UP position.

CAUTION

(1) Disengage parking brake. NOTE: Machine will not move if the parking brake is not fully off.

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.

(2) Check the position of the maximum speed control dial to ensure that it is set to the desired position.

1. Park machine on level ground and lower grapple and dozer blade to the ground.

Using the maximum speed control dial the operator is able to set the maximum travel speed of the machine. This allows the operator to maintain any desired travel speed with full drive pedal operation. Machine travel speed reduction can still be achieved by not fully depressing the foot pedal.

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

Turn the dial to the right to increase maximum travel speed. Turn the dial to the left to decrease maximum travel speed of the machine. This control can be used while the machine is in motion.

3. Do not race engine before shut-off.

4. Set parking brake ON. 5. Stop engine by turning ignition switch to the OFF position.

Caution: Turning the maximum speed control dial completely to the left (minimum setting) lowers maximum travel speed only, it will NOT prevent the machine from travelling when the forward or reverse travel pedals are used.

WARNING Before leaving the machine, park it in a safe position on level ground. Engage parking brake and lower the grapple and dozer blade to the ground.

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

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

(3) Operate the drive foot pedals to move the machine forward or reverse.

(4) This machine is equipped with Variable Ratio Load Sensing Steering. The speed that the vehicle responds to the steering wheel input will vary, depending on the speed that the steering wheel is moved. When operating on the road, a slow movement of the steering wheel will not overcorrect and will steer a straight normal course. Operating in the woods requires quick steering changes and this is produced by a rapid movement of the steering wheel, which will quickly change the vehicles direction.

WARNING When leaving the cab, always lower the dozer blade to the ground, engage the parking brake and turn the ignition switch OFF. If leaving the Skidder unattended, also remove the ignition key and switch the battery disconnect switch to OFF.

(5) Use differential locks sparingly and ONLY when additional traction is required. Never continuously drive the machine with the differential locks on. Serious damage to the axles can result from using the differential locks when they are not needed for additional traction.

Note: This machine is equipped with a 10 minute AUTO-OFF feature which automatically deactivates the differential locks after 10 minutes have passed.

2.65

Tigercat 620C Skidder

Controls and operation

OPERATING GRAPPLE: DAILY INSPECTION/SERVICE Check the Operator’s Manual for your Grapple Lubricate all grease fittings Check all hydraulic fittings Check hoses for wear. Replace as required.

Check for excessive wear at pin points.

Inspect for trash accumulation and clean out.

Check for excessive head swing and tighten the snubber to prevent damage to grapple or arch.

610-05

OPERATION Grapple operations should always be performed while seated in the operator’s seat.

The controls will return to neutral automatically when released.

The Constant Pressure button on the joystick will provide a constant closing pressure to the tongs to take up the slack as the logs are lifted and settle together. This pressure is released when the grapple is opened.

Refer to JOYSTICK CONTROL LEVER instructions in THIS SECTION for specific information on grapple operating controls.

2.66

TYPICAL TIGERCAT GRAPPLE

Tigercat 620C Skidder

Controls and operation

OPERATING WINCH:

CENTER JOINT:

Place the skidder in a safe, stable location, in line with the load. Engage parking brake.

It is very important that the machine not be operated if there is any looseness in the center joint bearings. Refer to MAINTENANCE OF THE CENTER JOINT in SECTION 3 of THIS MANUAL for visual checking procedures. For further information regarding adjustment and maintenance of the center joint refer to CENTER JOINT in SECTION 11 of the SERVICE MANUAL.

Lower the Grapple and Dozer Blade to the ground to anchor the machine.

Place the winch switch in the position.

(freespool)

This will allow the cable to unwind freely from the drum and also disconnects the drive motor from the winch drum. Note that an alarm warning light will flash, "Winch Freespool On" will appear on the IQAN-MDM computer display, and horn will sound whenever the winch control switch is in the FREE SPOOL position.

Make sure the cable is running freely through the fairlead rollers.

Avoid winching at an angle to the skidder.

Pull the cable from the drum and attach to object. Safety gloves should be worn.

ALLIED WINCH (6200567 TO 6205000) To retrieve the cable, deactivate FREE SPOOL. Press activation switch on top of lever and pull and hold the lever BACK to wind in the winch cable. For safety reasons this lever returns to the neutral (center) position when released and actuates the Pinion Brake, which locks the drum.

Refer also to WINCH FREESPOOL SWITCH and WINCH CONTROL LEVER in THIS SECTION. LANTEC WINCH (6200501 TO 6200566) To retrieve the cable, deactivate FREE SPOOL by placing the winch control switch in either the (high speed) or (low speed) position. This switch is positioned (at the operator's discretion) to either high speed and low torque for small or no loads, or low speed and high torque for medium and large loads.

Pull and HOLD the Winch Control Lever BACK to wind in the cable. For safety reasons this lever returns to the neutral (center) position when released and actuates the Pinion Brake, which locks the drum.

Refer also to WINCH CONTROL - SWITCH and WINCH CONTROL LEVER in THIS SECTION.

2.67

Tigercat 620C Skidder

Controls and operation

SKIDDING

SKIDDING TECHNIQUE

For more safety related information see also the Equipment Manufacturers Institute (EMI) Log Skidder Safety Manual for Operators and Mechanics supplied with this machine.

WARNING • Only operate in areas where Skidder will be in a stable condition

SAFETY:

• Avoid felling and bucking areas. Sound your horn when entering.

1. Know all Federal, State/Provincial and local rules which apply to your machine and job site.

• Never travel across a STEEP slope or side hill.

2. NEVER operate this machine while under the influence of drugs or alcohol.

• Never make an uphill turn on a slope • Never approach an unstable log from the downhill side.

3. Know the limitations of your Skidder and Yourself as an operator.

• Do not work below machines that are parked on a hill.

4. Check the work area for HAZARDS, both at ground level and overhead.

• Wear heavy gloves when handing the cables.

5. Always wear and use your seat belt and other Personal Protective Equipment, such as: hard hat, safety shoes, safety glasses and heavy gloves.

• Ensure that the PARKING BRAKE is engaged.

• Operate the winch ONLY FROM THE OPERATOR’S SEAT, never from outside the cab.

6. Rain, snow, ice, loose gravel, soft ground, etc. will change the operating capabilities of your machine.

• Do not winch at a sharp angle. This could cause your machine to tip over.

7. Keep all work surfaces and engine compartment clean and free of oil, grease, snow, ice and debris. Give special care to hand-holds, steps, pedals and floors.

• Overloading can make a machine unstable and create a roll-over condition.

8. Be constantly aware of the location of fellow workers. Especially those on foot.

• Keep load low and close to skidder for best stability.

9. Your Skidder is a one person machine. No riders inside or outside.

• A load of logs will change the handling and stability of the skidder.

10. Be aware of what is happening around you.

Maintain a safe operating distance between your machine and other equipment and workers.

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

11. Know the hand signals that are being used on your job site.

12. Keep skid roads, secondary trails and landing areas clear of debris and in good condition.

2.68

Tigercat 620C Skidder

Controls and operation

CORRECT KEEP LOAD LOW AND CLOSE TO SKIDDER FOR BEST STABILITY. BETTER WEIGHT DISTRIBUTION BETWEEN FRONT AND REAR OF MACHINE.

INCORRECT DECREASED STABILITY DUE TO LOAD POSITION. POORER WEIGHT DISTRIBUTION BETWEEN FRONT AND REAR OF MACHINE

EFFECT OF LOAD POSITION ON STABILTIY AND WEIGHT DISTRIBUTION

2.69

Tigercat 620C Skidder

Controls and operation

GRAPPLE SKIDDING 1. The timber may be pre-bunched or left for single pick-up. Depending on sizes you may have to single skid or bunch before skidding.

2. Logs should be picked up 3 ft. (1 meter) from the butt end.

3. If you have to add more logs or bunch, place the butt end of the new logs crosswise on top of the load in an “X” pattern. Place the Grapple over the logs where they cross and pick up the complete load.

4. The articulation feature in the Skidder increases the reach to the left and right and increases the range of pick-up for the grapple.

5. When pushing or backing up with a load, you must have the logs lined up with the Skidder and backup in a straight line, since you are using the butt pan to push the logs.

WARNING Backup carefully. If a log strikes an object, it could be pushed forward through the grapple and into the operator's cab.

When running empty, always keep grapple tongs closed to prevent striking the tires or the machine.

6. The articulation feature allows decking the logs from both sides of the pile.

7. Timber can be piled using the grapple or the dozer blade, depending on conditions.

8. The Dual Arch Skidder has the added ability to reach below ground level. This feature can be used to get the machine unstuck.

Do not drop the load as it helps to support the weight of the machine. Pull the load up close to the butt pan and lower the grapple downwards to solid ground. This process will push the back end of the Skidder upward and forward. Continue to repeat this process until the Skidder is on solid ground.

2.70

Tigercat 620C Skidder

Controls and operation

CABLE SKIDDING: 1. Locate the skidder so that the winch cable will lay in a fairly straight line.

2. Lower the Dozer and Grapple to the ground to anchor the machine. Set the parking brake.

Grapple may have to be raised, depending on winching angle and land terrain.

3. Chokers should be attached close to the butt end of the log.

4. If skidding multiple logs, attach furthest log away, to end of main cable, with closer logs ahead of it.

5. Winch in a straight line to prevent tip over problems.

6. Draw the logs in as close as possible to the butt pan and as high as stability will permit.

7. Raise the Grapple to a safe height and raise the dozer to its full height.

8. If you encounter soft ground or steep hills it may be necessary to drop the load “on the move” and allow the winch to “free spool” without stopping the Skidder. Once on solid ground or on top of the hill, stop the Skidder, lower the dozer, set the parking brake and winch the load back into the butt pan.

9. Adjust your speed to the terrain, ground conditions and the load your skidding.

2.71

Tigercat 620C Skidder

Controls and operation

CARE OF THE MACHINE

CLEANING INSTRUCTIONS FOR LEXAN WINDOWS

1. Ensure that all fluid levels are always at the proper level. Use the preventative maintenance schedule in SECTION 3 of this manual .

1. Rinse with lukewarm water.

2. Using a soft cloth or sponge, gently wash the sheet with a mild solution of soap or detergent and lukewarm water. DO NOT scrub or use brushes or squeegees.

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

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

3. Rinse with clean lukewarm water.

4. Dry thoroughly with a chamois or moist cellulose sponge to prevent water spotting.

4. Do not apply load to a cold engine.

5. Close and secure all doors and access covers.

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

Clean frequently but at least once daily.

WINDOW SCREEN HANDKNOB

•

Refer to CLEANING A/C CONDENSER AND COOLING ASSEMBLY in THIS SECTION. 173-25

7. Be sure that the grapple and dozer blade are resting on the ground before servicing or parking the machine.

284-10A

SIDE WINDOW SCREEN

CLEANING LEXAN WINDOWS

SIDE WINDOW SCREENS The side window screens can be removed to clean the windows. Screens are provided for the personal protection of the operator and must be reinstalled immediately after cleaning the windows.

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

2.72

Tigercat 620C Skidder

Controls and operation GRAFFITI REMOVAL

outwards with considerable force, if the door is open.

(A) Butyl Cellosolve (For removal of paints, marking pen inks, etc.) The use of masking tape, adhesive tape or lint removal tools works well for lifting off old weathered paints.

(B) 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. GASOLINE SHOULD NOT BE USED.

20231A R1

All handles should be hand tight only at all times. Refer also to FIRE PREVENTION in SECTION 1 of THIS MANUAL. To remove wet paint, glazing compound or grease, rub lightly (not in direct sunlight) with a good grade of VM&P naphtha, isopropyl alcohol or butyl cellosolve (2-Butoxy Ethanol), then wash and rinse thoroughly. DO NOT USE GASOLINE, Gasoline or oil will cause uncoated LEXAN to become opaque. MARGARD coated lexan will start to become opaque around the edges and creep in.

Removing Hairline Scratches Scratches and minor abrasions can be removed or minimized by using a mild automobile polish.

Three such products that tend to polish and fill scratches are Johnson Paste Wax, Novus Plastic Polish #1 & #2, and Mirror Glaze Plastic Polish. It is suggested that a test be made on a sample of LEXAN sheet with the product selected and that the polish manufacture's instructions be followed.

SOME IMPORTANT DON’TS DO NOT use abrasive or highly alkaline cleaners on LEXAN sheet products.

Never scrape LEXAN sheet products with squeegees, razor blades or other sharp instruments.

Benzene, gasoline, oil, acetone or carbon tetrachloride should never be used on LEXAN sheet products.

DO NOT clean LEXAN sheet products in hot sun or at elevated temperatures.

Compatible Cleaning Agents - Aqueous Solutions of Soaps and Detergents Formula 409 Top Job Freon T.F. VM&P grade Naphtha Joy Windex with Ammonia D Palmolive Liquid 2.73

Tigercat 620C Skidder

Controls and operation

CLEANING A/C CONDENSER AND COOLING ASSEMBLY

A/C CONDENSER

CHARGE AIR COOLER (CAC)

The side by side A/C condenser, radiator, charge air cooler (CAC) and hydraulic oil cooler is mounted at the front of the machine. The engine fan draws air from the engine compartment, through the A/C condenser and cooling assembly and blows it out through the front door screen.

The screened access panels on each side of the engine compartment act as debris screens to prevent debris from being drawn into the engine compartment.

HYDRAULIC OIL COOLER

RADIATOR

•

••

•

• FRONT DOOR SCREEN

The A/C condenser and cooling assembly should be checked every 8 hours (every shift) for accumulation of twigs, leaves, pine needles and dust.

This cooling assembly must be checked daily for debris and may have to be thoroughly cleaned on a weekly or monthly basis, depending on operating conditions. Compressed air or water may be used for cleaning. Use compressed air for cleaning only when the machine is cold to avoid the risk of fire caused by debris contacting hot surfaces.

620C-10

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. For more information on fire prevention refer to FIRE PREVENTION in SECTION 1 of THIS MANUAL. If an oil leak has occurred in this area it should be thoroughly power-washed with a mild soap to ensure that all of the oil is removed.

620C-94

CLEAN A/C CONDENSER AND COOLING ASSEMBLY

CLEAN SCREENED ACCESS PANELS BOTH SIDES

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 30 psi (2 Bar) or less.

Always use personal protective equipment to guard against flying debris

CAUTION Avoid the risk of fire caused by debris accumulating on surfaces that may become hot during machine operation. Always use care when cleaning to ensure that debris removed from one area of the machine does not accumulate on other areas of the machine.

2.74

Tigercat 620C Skidder

Controls and operation

USING THE FAN CLEAN FUNCTION TO REMOVE DEBRIS DURING OPERATION (IF EQUIPPED WITH OPTIONAL FLEXXAIRE® FAN) The Flexxaire® cooling fan has a CLEAN function for use in cleaning debris from the machines engine enclosure. The pitch of the fan blades is changed and the direction of airflow through the engine enclosure is reversed. This change in airflow blows debris from the machine's engine enclosure to eliminate potential overheating and poor machine performance caused by overheating. Ensure that there are no personnel standing directly to the sides of the machine when performing this operation, as dust and debris will fly out.

When the fan control switch is in the AUTOMATIC position, the system will automatically cycle through an auto clean cycle. The frequency and duration of the auto clean cycle is adjustable through the IQAN control system menu.

Refer to FAN CONTROL SWITCH in THIS SECTION for more information.

USING THE FAN CONTROL SWITCH IN THE EVENT OF AN ENGINE TEMPERATURE AND/ OR HYDRAULIC OIL TEMPERATURE ALARM. In the event of an engine temperature and/or hydraulic oil temperature alarm: 1. Stop the machine.

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

3. If necessary use the CLEAN function (if equipped) to reverse fan flow and clean debris from the machine's engine enclosure 4. In severe operating conditions manual cleaning of debris may be required.

5. If the problem persists check engine coolant and/or hydraulic oil levels. Refer to OPERATING MACHINE ~ PRESTART CHECKS in THIS SECTION. 6. Return the fan control switch to AUTOMATIC 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.

2.75

Tigercat 620C Skidder

Controls and operation

ARTICULATION LOCK

TRANSPORTING INSTRUCTIONS

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

IMPORTANT

2. Lower grapple and dozer blade to the ground, engage parking brake, stop engine and remove ignition key.

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

The skidder 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.

ARTICULATION LOCK

•

• RETAINING PINS

With the wheels on or off:-

REAR CHASSIS

630C-52

•

The dozer blade must be down on the truck bed.

•

The grapple must be closed and lowered to the truck bed.

•

The articulation lock bar must be installed.

•

ARTICULATION LOCK STORED POSITION

3. Remove both retaining pins from the articulation lock. Relocate articulation lock between front and rear chassis. Line up holes at each end of articulation lock with holes in chassis’ and secure in place with both retaining pins.

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

4. After work is completed, relocate articulation lock into storage position on rear chassis and hold in place with retaining pins.

630C-51

IMPORTANT Use only transport regulation chains for this purpose, example; 5/16" grade 7 with a tensile strength of 96,000lbs/chain (43636 kg/chain). Using inferior or damaged chains could cause the load to shift.

•

The machine must be cross chained (side to side) at both the front and rear axle area.

•

Chains must be attached to the grapple to prevent movement.

Additional chains may be installed on the two tow lugs (front of unit) and on the bottom cab access steps.

ARTICULATION LOCK IN LOCKED POSITION

CAUTION As a fire prevention measure, 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 turbulance caused by the journey. Refer also to FIRE PREVENTION in SECTION 1 of THIS MANUAL.

2.76

Tigercat 620C Skidder

Controls and operation

TOWING INSTRUCTIONS

STEERING CYLINDERS

STEERING CYLINDERS

A malfunction of the machines equipment may make towing necessary.

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 motors.

SM47

The transmission disconnect lever is accessed from the right side, between the cab and heat exchanger assembly. A short bar is placed through the hole in the lever and pulled upwards to put the transmission into neutral.

HOSES ON ONE CYLINDER CROSS CONNECTED FOR TOWING

4. The machine will be towed from the front, making use of the towing lugs at front of machine behind the dozer blade.

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

2. Raise the grapple and dozer blade off the ground and turn off the engine.

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

3. 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.

5. When towing is completed, reconnect steering cylinder hoses in proper location.

DISCONNECT LEVER

CAUTION Before towing, the transmission must always be placed in NEUTRAL. Never tow a machine in gear. If the machine is subjected to hard pulling while in gear, the extremely high forces created will cause significant damage to the components of the hydrostatic drive system and the transmission.

Never tow the machine at over 2 mph (3.2 km/h). This will cause significant damage to the transmission.

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

••

342-1

NORMAL HOSE CONNECTIONS

TRANSMISSION DISCONNECT LEVER SHOWN IN NEUTRAL

2.77

Tigercat 620C Skidder

Controls and operation

VEHICLE MOVING INSTRUCTIONS FOR 600 SERIES SKIDDER AND CLAMBUNK MACHINES IMPORTANT:

READ AND UNDERSTAND THESE SAFETY INSTRUCTIONS BEFORE OFF LOADING THIS MACHINE. SEE OPERATOR’S MANUAL IN PLASTIC POUCH UNDER INSTRUMENT PANEL IN CAB FOR ADDITIONAL INFORMATION. 1.

TURN BATTERY DISCONNECT SWITCH 'ON'. THIS SWITCH IS LOCATED BEHIND A SMALL ACCESS DOOR BELOW THE RIGHT CAB DOOR OR BEHIND THE ACCESS PANEL ON THE LEFT SIDE OF ENGINE COMPARTMENT.

2.

ENSURE AREA IS CLEAR BEFORE MOVING MACHINE AND THAT ANY PERSONNEL ARE AT A SAFE DISTANCE.

3.

SIT IN OPERATOR’S SEAT, FASTEN SEAT BELT AND CLOSE BOTH DOORS.

ON OFF

4.

PLACE BOTH SEAT ARMRESTS IN DOWN, OPERATING POSITION.

5.

ENSURE THAT THE PARKING BRAKE LEVER IS ENGAGED.

6.

CHECK THAT OUTSIDE PERSONNEL HAVE NOT MOVED INTO A HAZARDOUS LOCATION NEAR THE MACHINE, BEFORE STARTING THE ENGINE.

7.

PRESS HORN BUTTON (CENTER OF STEERING WHEEL) SEVERAL TIMES TO SOUND HORN TO ALERT PERSONNEL IN THE AREA OF YOUR INTENT TO START ENGINE. TURN KEY TO RUN POSITION AND WAIT FOR THE 'WAIT TO START' LIGHT TO GO OUT.

8.

TURN KEY SWITCH TO 'START' POSITION, RELEASE WHEN ENGINE FIRES.

RUN OFF

START

WARNING: STEERING WHEEL AND JOYSTICKS ARE NOW OPERATIONAL. 9.

REMOVE SECURING PINS AND RED ARTICULATION LOCK BAR FROM BETWEEN FRAMES.

10. DISENGAGE THE PARKING BRAKE. 11. USE JOYSTICKS TO RAISE DOZER BLADE (FRONT) AND GRAPPLE (REAR - IF EQUIPPED). BEWARE OF OVERHEAD OBSTRUCTIONS. 12. MOVE MACHINE BY PRESSING TRAVEL FOOT PEDALS ON THE RIGHT. RIGHT PEDAL IS FOR 'FWD' (FORWARD), LEFT PEDAL IS FOR 'REV' (REVERSE).

REV

FWD

13. STEER MACHINE BY SLOWLY TURNING THE STEERING WHEEL IN THE DIRECTION DESIRED. 14. ONCE THE MACHINE IS IN THE DESIRED LOCATION, PARK THE MACHINE BY ENGAGING THE PARKING BRAKE. 15. IF TRANSPORTATION OF MACHINE IS TO CONTINUE, REINSTALL RED ARTICULATION LOCK BAR BETWEEN THE FRONT AND REAR FRAMES. 16. USE JOYSTICKS TO LOWER DOZER BLADE (FRONT) AND GRAPPLE (REAR - IF EQUIPPED) TO GROUND. 17. TURN KEY SWITCH TO 'OFF' POSITION TO SHUT OFF ENGINE. 18. TURN BATTERY DISCONNECT SWITCH 'OFF'.

RUN OFF

START

ON OFF

Tigercat

18777B R3

®

2.78

Tigercat 620C Skidder SECTION 3 - LUBRICATION & MAINTENANCE MARCH 2008

CONTENTS - SECTION 3 AIR CLEANER MAINTENANCE ...............................................................................

AIR CONDITIONING SYSTEM, CHECKING ............................................................

APPROVED HYDRAULIC OILS AXLE CIRCUIT ......................................................................................................

MAIN HYDRAULIC SYSTEM .................................................................................

ARTICULATION LOCK ..............................................................................................

AXLE OIL LEVEL CHECK AND AXLE CIRCUIT FILL ............................................

3.20 3.28

CAB SAFETY CABLE ................................................................................................

CAB SAFETY CABLE ................................................................................................

CAB SUPPORT BRACE ...........................................................................................

CENTER JOINT LUBRICATION .......................................................................................................

MAINTENANCE .....................................................................................................

3.31 3.31 3.31

3.11 3.10 3.32 3.36

3.32 3.32

EMERGENCY EXITS, CHECK MONTHLY ................................................................. 3.6 FILTERS AXLE PRESSURE FILTER .................................................................................... 3.19 CHARGE PRESSURE FILTER .............................................................................. 3.19 FUEL FILTER/WATER SEPARATOR .......................................................... 3.14, 3.15 FUEL TANK STRAINER ........................................................................................ 3.17 HYDRAULIC OIL DOUBLE FILTERS .................................................................... 3.18 SERVICING GUIDELINES FOR OIL FILTERS ..................................................... 3.19 FIRE PREVENTION .................................................................................................... 3.6 GENERAL MAINTENANCE ........................................................................................ 3.6 GRAPPLE SNUBBER MAINTENANCE .......................................................... 3.23, 3.24 HOUR METER ~ MAINTENANCE .............................................................................. 3.2 LUBRICATION AND SERVICE POINTS .................................................................. 3.13 NEW MACHINE MAINTENANCE ............................................................................... 3.2 FIRST 50-100 HOUR INSPECTION AND SERVICE REPORT ............................... 3.2 INITIAL PRE-DELIVERY INSPECTION ................................................................... 3.2 OIL LOST FROM LEAKAGE ....................................................................................... 3.2 OIL SAMPLE COLLECTION PROCEDURES ............................................................. 3.4 OIL SAMPLING PROGRAM ................................................................................ 3.3, 3.5 PRESSURIZED WATER SYSTEM MAINTENANCE ................................................ 3.26 SCHEDULED MAINTENANCE ................................................................... 3.7, 3.8, 3.9 FREQUENTLY ......................................................................................................... 3.7 8 HOURS ................................................................................................................. 3.7 48 HOURS ............................................................................................................... 3.7 125 HOURS ............................................................................................................. 3.8 250 HOURS ............................................................................................................. 3.8 500 HOURS ............................................................................................................. 3.9 1000 HOURS ........................................................................................................... 3.9 SEASONAL .............................................................................................................. 3.9 SERVICE AND LUBRICATION POINTS .................................................................. 3.13 STARTUP PROCEDURE AFTER MAJOR MAINTENANCE 6200501 TO 6200900 ............................................................................................ 3.38 6200901 TO 6205000 ............................................................................................ 3.40 TILTING THE CAB ....................................................................................................

TORQUE CHART ......................................................................................................

TORQUE, FLUID CONNECTIONS ....................................................... 3.44, 3.45, TORQUE SPECIFICATIONS - GENERAL ................................................................

3.30 3.42 3.46 3.43

WEIGHTS OF COMMERCIAL WOOD ..................................................................... 3.47 WHEELS, INSTALLING .............................................................................................. 3.2 WINCH LUBRICATION - LANTEC ONLY ................................................................. 3.35 WINCH MAINTENANCE - ALLIED ONLY ................................................................ 3.33

Tigercat 620C Skidder

Lubrication and Maintenance

PREVENTIVE MAINTENANCE SCHEDULE FOR 620C SKIDDER NEW MACHINE MAINTENANCE *INITIAL PRE-DELIVERY INSPECTION:PERFORM THE INITIAL PRE-DELIVERY INSPECTION USING Tigercat FORM NUMBERS 5281 AND 5283; "PDI AND 50-100 HOUR INSPECTION REPORT"

*FIRST 50-100 HOUR INSPECTION AND SERVICE REPORT:WITH THE OWNER'S MECHANIC PRESENT, PERFORM AN INSPECTION AND SERVICE ACCORDING TO THE Tigercat FORM NUMBERS 5281 AND 5283; "PDI AND 50-100 HOUR INSPECTION REPORT" THIS MUST BE COMPLETED WITHIN THE FIRST 50-100 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:-

IMPORTANT!

THE FIRST 50-100 HOUR INSPECTION REPORT:~

WHEELS: 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.

All hydraulic connections Hose clamps Center joint pin securing bolts Transmission securing bolts Engine mounting bolts Axle mounting bolts Wheel retaining bolts Cab securing bolts Pin retainers Any other loose nut, bolt or fitting

For more complete instructions also refer to SECTION 15 of the SERVICE MANUAL.

HOUR METER ~ MAINTENANCE: Check the hour meter on a regular basis to determine your scheduled maintenance times.

The intervals and times on the scheduled maintenance chart in this manual are for normal operating conditions.

NOTE: Use of filters other than genuine Tigercat replacement filters is not recommended.

If your machine is being operated in difficult or severe conditions, you should service your machine at shorter intervals.

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 620C Skidder

Lubrication and Maintenance

TIGERCAT OIL SAMPLING PROGRAM Effective for all 2007 model year 604, 610, 620C & 630C skidders sold in North America, oil sampling must be performed during the warranty period as per the schedule below.

Warranty coverage of powertrain components, specifically hydrostatic pumps and motors, auxilliary pumps, axles, transfer case and driveshafts is contingent on performance of regular oil sampling at the owner’s expense during the warranty period.

620C & 630C Models Loca tion Hydraulic Oil Transmission Axle Circuit

First Sa m ple Follow -up Sa m ple s 100 Hours Every 1000 Hours or 6 Months 100 Hours Every Oil Change (500 Hours or 3 Months) 100 Hours Every 1000 Hours or 6 Months

FIRST SAMPLE There will be no charge for the first oil samples required to be taken during the 100-Hour Inspection Service that will be scheduled and performed by your Tigercat dealer. Refer to NEW MACHINE MAINTENANCE in THIS SECTION. FOLLOW-UP SAMPLES All follow-up samples must be taken as indicated in the chart above and will be the responsibility of the machine owner.

Copies of all oil analysis results must be forwarded to the Tigercat Warranty Department for continued warranty coverage. If samples are taken using the Tigercat Oil Analysis Program, a copy of all results will automatically be sent to Tigercat.

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: Hydraulic Circuits, Final Drives, Axles, Gearboxes, Engines, etc.

To ensure accurate and meaningful results are obtained, each kit also includes detailed instructions on how properly collect, prepare and ship the oil samples.

Contact your Tigercat Dealer Parts Department to order Kits.

3.3

Tigercat 620C Skidder

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.

HYDRAULIC SAMPLE VALVE

•

HYDRAULIC OIL

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.

• •

OS MAIN 604 610 620C

HYDRAULIC SAMPLE VALVE

•• AXLE FILTER

••

Ensure that all sample valves and drain plugs are clean and free of debris.

AXLE HYDRAULIC OIL Hydraulic Oil Samples: OS AXLE 620C

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.

•

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.

•

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 to 4 oz (90 to 120 mL) 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.

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

Tigercat 620C Skidder

Lubrication and Maintenance

TIGERCAT OIL SAMPLING PROGRAM

•

SAMPLE LOCATION / TRANSMISSION DRAIN 630C-100

TRANSMISSION OIL

Transmission Oil Samples: •

These samples can be taken during the oil change process.

•

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.

3.5

Tigercat 620C Skidder

Lubrication and Maintenance

GENERAL Always have a fire extinguisher at hand

CAUTION All handles, steps and platforms must be kept free of grease, oil, fuel, mud, snow and ice.

For safety; when leaving the cab or leaving machine unattended or during service, always lower grapple and dozer blade to the ground

Clean around filler caps before checking or adding fluids

For safety, always block or support grapple and dozer blade when working under them.

Release hydraulic pressures and clean around hydraulic fittings before breaking connection.

Plug or cap immediately

CHECK EMERGENCY EXITS MONTHLY~

Clean up spills as soon as possible

Alternate exit routes are provided: the sliding windows in the cab doors. These are only to be used if the cab doors cannot be opened.

Always use clean oil and containers Drain dirty oil while still warm

It is therefore essential that these emergency exits be checked at least once per month to ensure they are fully operational.

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

FIRE PREVENTION Maintaining your machine properly will greatly extend its life and reduce your operating costs.

Clean up oil spills on walking surfaces and top of engine enclosure immediately

Fire can result in a machine loss which can be financially devastating.

Before welding on machine be sure master switch is disconnected

1. Pine needles and bark 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.

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

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.

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.

3. 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.

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.

Also refer to the SAFETY section of this manual for additional information on how to prevent fires from starting on the machine.

3.6

Tigercat 620C Skidder

Lubrication and Maintenance

SCHEDULED MAINTENANCE FREQUENTLY:~

Clean:~

• Check engine cooling air intake screens for possible restriction.

• Potentially damaging limbs or sticks from machine

EVERY 8 HOURS (EVERY SHIFT):~

• A/C condenser, oil cooler, radiator refer to CLEANING A/C CONDENSER AND COOLING ASSEMBLY in SECTION 2 of the OPERATOR'S MANUAL.

• Perform "frequently" maintenance check, and in addition:~ • Check engine coolant level

Check:~ • For leakage around hydraulic components and flexible hoses. See "Oil lost from leakage" chart.

• Check engine oil level • On machines 6200501 to 6200900 drain fuel filter/water separator

• For loose nuts, bolts and fittings

• On machines 6200901 to 6205000 drain secondary fuel filter/water separator

• Condition and tension of fan belts.

• Exhaust system for leaks.

• Check air intake precleaner, clean as required

• Water pressure (60 psi [4 Bar]) for pressurized water system.

• Check air cleaner unloader valve • Check engine air filter restriction indicator

If the water system has been operated, refer to PRESSURIZED WATER SYSTEM MAINTENANCE in THIS SECTION for refilling and charging instructions.

• Check main hydraulic oil level • Check winch sump oil level • Check transmission oil level with dipstick

• Conduct an overall visual inspection.

• Lubricate front axle pivot, 2-fittings, purge

Refer to diesel engine service manual and attachment manual for additional required maintenance at this scheduled time period.

• Lubricate mid drive shaft 1-fitting, purge Note: Lubrication of mid drive shaft slip joint should be done with machine fully articulated.

• Lubricate rear drive shaft bearing, 1-fitting, purge • Lubricate center joint bearings, purge

EVERY 48 HOURS • Check the center joint for looseness. Refer to CENTER JOINT MAINTENANCE in THIS SECTION for instructions. If a problem is found corrective action should be taken immediately. Refer also to CENTER JOINT in SECTION 11 of the SERVICE MANUAL for more detailed checking and adjustment procedures.

2-fittings,

• Lubricate steering cylinder ends, 4-fittings, purge • Lubricate arch cylinders and pivots, 6 or 12fittings, purge • Lubricate dozer blade cylinders and pivots, 6-fittings, purge • Lubricate grapple snubbers, 9-fittings, purge • Lubricate grapple, 8-fittings, purge • Lubricate grapple yoke, 4-fittings, purge

3.7

Tigercat 620C Skidder

Lubrication and Maintenance

SCHEDULED MAINTENANCE Clean/replace:• Refer to diesel engine service manual and attachment manual for additional required maintenance at this scheduled time period.

EVERY 125 HOURS:~ • Perform "frequently" maintenance • Perform 8 hour maintenance And in addition:~ • Lubricate front drive shaft 1-fitting, purge

EVERY 250 HOURS:~

• Lubricate grapple rotator shaft, 3-fittings, 5-shots

• Perform "frequently" maintenance

• Carry out A/C system inspection; Refer to AIR CONDITIONING SYSTEM, CHECKING in THIS SECTION

• Perform 8 hour maintenance • Perform 125 hour maintenance • Perform FLEXXIARE fan maintenance see Table 1 (if equipped with Flexxaire fan)

Check:~ • Check axle circuit reservoir oil level (in front axle). Refer to AXLE OIL LEVEL CHECK AND AXLE CIRCUIT FILL in THIS SECTION.

And in addition:~ • On machines 6200501 to 6200900 replace fuel filter/water separator

• All engine air intake system components (including charge air cooler) rubber elbows, connector hoses, tubes and clamps for damage, hardening, wear, cracks, leaks, loose clamps or loose hanger bracket hardware and repair immediately.

• On machines 6200901 to 6205000 up replace primary fuel filter and secondary fuel filter/ water separator • Replace air intake primary element • Lubricate grapple pinion gear spline, 1-fitting, 5-shots, (Note: remove pipeplug to access)

• Charge Air Cooler for damage, wear, cracks, or leaks and repair immediately.

• Torque tightening points as per new machine maintenance

• Clean and thoroughly inspect all surfaces of the arch and boom for cracks. All cracks must be properly repaired in their early stages.

Note that in most cases cracks will continue to grow in size and often lead to major structural damage. Failure to regularly inspect for cracks and immediately repair the boom system will void the structural warranty.

Contact your Tigercat dealer for specific procedures required to correctly repair any cracks found.

• Proper operation of pressurized water system.

Refer to PRESSURIZED WATER SYSTEM MAINTENANCE in THIS SECTION.

• Refer to diesel engine service manual and attachment manual for additional required maintenance at this scheduled time period.

• Fluid level in batteries unless maintenance free • Engine rpm.

• All hydraulic pressures • Hydraulic pump and motor securing bolts • Check fuel tank filler screen

Visually check for damage to:• Arch and pivot linkage

Visually inspect for:• Frayed electrical wiring and hydraulic hose

Table 1: Flexxaire® Fan Service Interval Chart Monthly or 250 hrs.

Visual check for oil leaks.

6 months or 1000 hrs. Check oil level, fan blades. Perform mechanical review.

4 years or 6000 hrs. Oil change.

• Wear in any other components

FLEXXAIRESERVICE.XLS

• Front and rear frame • Center joint area • Attachment Make repairs immediately

† Use of filters other than genuine Tigercat replacement filters is not recommended.

3.8

Tigercat 620C Skidder

Lubrication and Maintenance

SCHEDULED MAINTENANCE • Replace oil in winch sump.

EVERY 500 HOURS:~

• Drain and refill pressurized water system.

Refer to PRESSURIZED WATER SYSTEM MAINTENANCE in THIS SECTION.

• Perform "frequently" maintenance • Perform 8 hour maintenance • Perform 125 hour maintenance

• Sample hydraulic oil from the main hydraulic tank for testing. NOTE: Warranty coverage of powertrain components is contingent on performance of regular oil sampling at the owner’s expense during the warranty period.

Refer to OIL SAMPLING PROGRAM in THIS SECTION for details.

• Perform 250 hour maintenance And in addition : ~ • Replace air intake safety element • Replace axle pressure filter † • Replace hydraulic oil double element filters (2 elements) †

• Sample hydraulic oil from the axle hydraulic circuit for testing. NOTE: Warranty coverage of powertrain components is contingent on performance of regular oil sampling at the owner’s expense during the warranty period.

Refer to OIL SAMPLING PROGRAM in THIS SECTION for details.

1 white, high performance element.

1 blue, water absorbing element.

• Replace charge pressure filter † • Replace oil in transmission. Sample transmission oil for testing. NOTE: Warranty coverage of powertrain components is contingent on performance of regular oil sampling at the owner’s expense during the warranty period. Refer to OIL SAMPLING PROGRAM in THIS SECTION for details.

• Refer to diesel engine service manual and attachment manual for additional required maintenance at this scheduled time period.

• Lubricate door hinges, 8-fittings

SEASONAL:~

• Refer to diesel engine service manual and attachment manual for additional required maintenance at this scheduled time period.

• Drain and refill hydraulic oil tank with recommended hydraulic oil. Refer to APPROVED HYDRAULIC OILS in THIS SECTION. • Drain and refill both front and rear axles with recommended hydraulic oil. Refer to APPROVED HYDRAULIC OILS in THIS SECTION, also see SECTION 15 of the SERVICE MANUAL for axle filling procedure.

EVERY 1000 HOURS:~ • Perform "frequently" maintenance • Perform 8 hour maintenance • Perform 125 hour maintenance

• Drain and refill pressurized water system.

Refer to PRESSURIZED WATER SYSTEM MAINTENANCE in THIS SECTION.

• Perform 250 hour maintenance • Perform 500 hour maintenance • Perform FLEXXIARE fan maintenance see Table 1 (if equipped with Flexxaire fan) And in addition replace oil in:~ • Replace air cleaner unloader valve

Table 1: Flexxaire® Fan Service Interval Chart Monthly or 250 hrs.

Visual check for oil leaks.

6 months or 1000 hrs. Check oil level, fan blades. Perform mechanical review.

4 years or 6000 hrs. Oil change.

• Check center joint preload with a dial indicator.

Refer to CENTER JOINT ~ CHECKING CENTER JOINT PRELOAD in SECTION 11 of the SERVICE MANUAL. If a problem is found corrective action should be taken immediately, refer to CENTER JOINT PRELOAD ADJUSTMENT in SECTION 11 of the SERVICE MANUAL.

FLEXXAIRESERVICE.XLS

3.9

Tigercat 620C Skidder

Lubrication and Maintenance

APPROVED HYDRAULIC OILS MAIN HYDRAULIC SYSTEM Note that the 620C skidder has two separate hydraulic systems (the main hydraulic system and the axle circuit). These two hydraulic systems require two different types of hydraulic oil that must not be interchanged under any circumstances.

Use only one of the following oils to fill or replenish the MAIN HYDRAULIC SYSTEM. ®

Tigercat

HYDRAULIC OIL OPERATING RANGE (Not suitable for axle applications)

OPERATING TEMP. RANGE LOWEST START-UP TEMP.

HYDRAULIC OIL TEMPERATURE -40

OIL TYPE

-40

-30 -20

-20 0

-10

0 20

10 40

20 60

30 80

40

50

60

70

100

120

140

160

80 180

90 200

100

˚C 220˚F

CITGO MYSTICK HVI 32 MYSTICK HVI 46 MYSTICK HVI 68 CHEVRON RYKON PREMIUM 32 RYKON PREMIUM 46 RYKON PREMIUM 68 ESSO / EXXON UNIVIS N22 UNIVIS N32 UNIVIS N46 UNIVIS N68 IRVING OIL HYDRAULIC LP 22 HYDRAULIC LP 32 HYDRAULIC LP 46 HYDRAULIC LP 68 MOBIL MOBIL DTE 12M (ISO 22) MOBIL DTE 13M (ISO 32) MOBIL DTE 15M (ISO 46) MOBIL DTE 16M (ISO 68) PETRO-CANADA HYDREX MV 22 HYDREX MV 36 HYDREX MV 60 SHELL TELLUS T22 TELLUS T32 TELLUS T46 TELLUS T68 TEXACO RANDO HDZ 22 RANDO HDZ 32 RANDO HDZ 46 RANDO HDZ 68

CAUTION

OPERATING MACHINE OUTSIDE LIMITS SHOWN WILL RESULT IN FAILURE OF HYDRAULIC COMPONENTS

5168AR03

3.10

Tigercat 620C Skidder

Lubrication and Maintenance

APPROVED HYDRAULIC OILS AXLE CIRCUIT Note that the 620C skidder has two separate hydraulic systems (the main hydraulic system and the axle circuit). These two hydraulic systems require two different types of hydraulic oil that must not be interchanged under any circumstances.

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 AXLE HYDRAULIC CIRCUIT.

AXLE OIL THE FLUID USED TO FILL OR REPLENISH THE AXLES ON THIS MACHINE MUST MEET JOHN DEERE SPECIFICATIONS TYPE J20C (SUMMER) OR J20D (WINTER).

THE FOLLOWING ARE APPROVED BY Tigercat FOR USE IN THIS MACHINE:

®

CHEVRON CITGO IMPERIAL/ESSO SHELL SUN JOHN DEERE

TRACTOR HYDRAULIC FLUID (SUMMER) TRACTOR HYDRAULIC FLUID (33-310) (SUMMER) HYDRAUL 56 (SUMMER) HYDRAUL 50 (LOW VISC) WINTER) DONAX TD (SUMMER) DONAX TDL (WINTER) SUNFLEET TH FLUID (SUMMER) TYPE J20C (HYGARD) (SUMMER) 22874A R0 TYPE J20D (HYGARD) WlNTER)

3.11

Tigercat 620C Skidder

Lubrication and Maintenance

REAR DRIVE SHAFT, BEARING

17

MID DRIVE SHAFT

1 FTG/8

1 FTG/8

3A

17

EARLY MACHINES (62000501 TO 6200900)

3

••

GRAPPLE PINION GEAR 23 1 FTG/250 5 SHOTS

STEER CYLINDERS 19 4 FTG/8

NOTE: REMOVE PIPEPLUG TO ACCESS

FRONT DRIVE SHAFT 1 FTG/8 17

3.12

•

LATER MACHINES (62000901 AND UP)

Tigercat 620C Skidder

Lubrication and Maintenance

Tigercat® Model 620C SERVICE AND LUBRICATION POINTS REFER TO Tigercat OPERATOR'S MANUAL FOR FURTHER INFORMATION

CHK

2

ENGINE OIL/FILTER CUMMINS QSB SERIES

CHK •

FUEL FILTER/WATER SEPARATOR (ENGINE)

DRN

3A

SECONDARY FUEL FILTER/WATER SEPARATOR FUEL TANK FILLER SCREEN

5

AIR INTAKE PRECLEANER

6

•

DRN

• SEE ENGINE MANUFACTURER'S MAINTENANCE MANUAL FOR PROCEDURES, CAPACITIES AND REPLACEMENT INTERVALS

REP

1

EARLIER MACHINES (6200501 TO 6200900)

REP

1

LATER MACHINES (6200901 TO 6205000)

1

LATER MACHINES (6200901 TO 6205000)

REP

1

CHK REP

AIR INTAKE SAFETY ELEMENT

DESCRIPTION

60/40 ANTIFREEZE *

•

CHK

AIR INTAKE PRIMARY ELEMENT

QTY

USG

LITERS

500

1000

34.4 9.1

CHANGE COOLANT EVERY 2 YEARS

PRIMARY FUEL FILTER

4

250

8 COOLING SYSTEM

125

SERVICE POINT NO.

ITEM

1

3

CAPACITY

SERVICE EVERY

REP

CLEAN AS REQUIRED

1

CHECK FILTER RESTRICTION INDICATOR WITH ENGINE RUNNING

1

REFER TO SECTION 3 IN MANUAL

1

D/R AS REQUIRED BY SEASONAL OIL CHANGE *** (SEE HYDRAULIC OIL CHART) ALSO CHANGE WHEN REPAIRING A LEAK ING OR FAILED AXLE *NOTE: MUST USE 1 BLUE FILTER ELEMENT AND 1 WHITE FILTER ELEMENT

7

AIR CLEANER UNLOADER VALVE

CHK

8

HYDRAULIC RESERVOIR (GAUGE ON TANK)

CHK

9

AXLE PRESSURE FILTER

REP †

10

HYDRAULIC FILTER, FULL FLOW, INCLUDES: 1 BLUE WATER ABSORBING ELEMENT * 1 WHITE HIGH PERFORMANCE FILTER

REP †

2

11

CHARGE PRESSURE FILTER

REP †

1

12 13

WINCH: LANTEC ALLIED PRESSURIZED WATER SYSTEM

CHK

CHECK FILTER RESTRICTION INDICATOR ON FILTER WITH ENGINE RUNNING AT FULL AND WITH OIL FLOW SEE WINCH MANUFACTURER'S MAINTENANCE MANUAL SEASONAL DRAIN AND REFILL

14

TRANSMISSION

CHK

1.6

1

31.2 8.2 62.4 16.5

2

FILL WITH MIL-L-2105C OR API-GL-5 LUBRICANT GRADE/WEATHER TEMPERATURE: BELOW -10F°(-23°C) USE 75W-90 UP TO 100°F(38°C) USE 80W-90 ABOVE 100°F(38°C) USE 85W-140 D/R WITH SEASONAL OIL CHANGE *** (SEE AXLE OIL CHART) REFER TO SECTION 3 OF THE MANUAL FOR CHECKING PROCEDURE.

15

16

CAST

MID DRIVE SHAFT REAR DRIVE SHAFT: BEARING

D/R TEST

D/R D/R

18 4.7 3.8 1 52 13.7 6

CHK LUB

FRONT DRIVE SHAFT 17

100 26.4

CHK

AXLES: FRONT REAR AXLE CIRCUIT RESERVOIR - FRONT AXLE AXLE-PIVOT (FRONT ONLY)

REP

1 1

LUB LUB ** LUB

PURGE

2

PURGE

1

PURGE

1

PURGE

1

PURGE

2

LITHIUM BASE EP2 GREASE LITHIUM BASE EP2 GREASE LITHIUM BASE EP2 GREASE REFER TO SECTION 3 OF THE MANUAL FOR DETAILS

CENTER JOINT

LUB

18

CENTER JOINT BEARING PRELOAD

19

STEERING CYLINDERS

CHK 48 LUB

PURGE

4

LITHIUM BASE EP2 GREASE

20

SINGLE ARCH CYLINDER & PIVOTS

LUB

PURGE

6

LITHIUM BASE EP2 GREASE

21

DOUBLE ARCH CYLINDER & PIVOTS

LUB

PURGE

12 LITHIUM BASE EP2 GREASE

22

DOZER BLADE CYLINDER & PIVOTS

LUB

PURGE

6

23

CHK

GRAPPLE, Tigercat GRAPPLE, OTHER MANUFACTURER

LITHIUM BASE EP2 GREASE

SEE LUBRICATION POINTS DIAGRAM SEE GRAPPLE MANUFACTURER'S MAINTENANCE SCHEDULE

LUBCHART620CT3R1.XLS 11/07

3.13

Tigercat 620C Skidder

Lubrication and Maintenance Changing the filter:

FILTERS

1. Park machine on level ground, install articulation lock bar, lower dozer and grapple to the ground, stop engine, engage parking brake and block wheels.

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.

2. Wipe clean the area around the filter and head.

3. Use filter drain to drain fuel out of the filter for approximately 5 seconds. This will prevent fuel from running over the top of the filter when it is removed.

FUEL FILTER/WATER SEPARATOR (CUMMINS QSB ENGINE) SERIAL NUMBERS 6200501 TO 6200900 This is a combination unit, with a replaceable fuel filter with drain valve and a reusable water in fuel sensor. For service and replacement intervals see SERVICE AND LUBRICATION POINTS in THIS SECTION. Refer also to engine manufacturer's manual for more detailed information.

4. Disconnect the water in fuel sensor from the wiring harness.

5. Place rags below to catch the spillage of fuel.

6. Wearing face protection (in case of a fuel spray) unscrew the old filter. Dispose of any fuel properly .

7. Dispose of the fuel filter properly.

8. Check the seating area for the o-ring on the filter head and wipe clean.

FUEL FILTER/ WATER SEPARATOR

9. Lubricate the o-ring on top of the new filter with clean engine oil. DO NOT PRE-FILL the new filter.

10. Screw the new filter on to the filter head as specified by the filter manufacturer. Note: Mechanical overtightening can damage the filter element.

• DRAIN VALVE WATER IN FUEL SENSOR

• •

620C-09

11. Connect water in fuel sensor to the wiring harness.

12. Start the engine and check for leaks. Refer to STARTING ENGINE in SECTION 2 of the OPERATOR'S MANUAL.

FUEL WATER SEPARATOR (6200501 TO 6200900)

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 manual.

WARNING Drain fuel filter into a container and dispose of all fluids properly.

3.14

Tigercat 620C Skidder

Lubrication and Maintenance WARNING

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.

The fuel pump high-pressure fuel lines and fuel rail contain very high pressure fuel.

Never loosen any fittings while the engine is running. Personal injury and property damage can result.

Changing the primary fuel filter:

PRIMARY FUEL FILTER AND SECONDARY FUEL FILTER/WATER SEPARATOR (CUMMINS QSB ENGINE) SERIAL NUMBERS 6200901 TO 6205000

1. Park machine on level ground, install articulation lock bar, lower dozer and grapple to the ground, stop engine, engage parking brake and block wheels.

This machine is equipped with two fuel filters. The secondary fuel filter is a combination unit, with a replaceable fuel filter with drain valve and a reusable water in fuel sensor. For service and replacement intervals see SERVICE AND LUBRICATION POINTS in THIS SECTION. Refer also to engine manufacturer's manual for more detailed information.

SECONDARY FUEL FILTER/ WATER SEPARATOR

PLUG

HAND PRIMER

• •• ••

DRAIN VALVE WATER IN FUEL SENSOR

•• •• 620C-86

3. Place rags below to catch the spillage of fuel.

4. Wearing face protection (in case of a fuel spray) unscrew the old filter. Dispose of any fuel and the fuel filter properly.

5. Check the seating area for the o-ring on the filter head and wipe clean.

PRIMARY FUEL FILTER

••

2. Wipe clean the area around the filter and head.

6. Lubricate the o-ring on top of the new filter with clean engine oil. DO NOT PRE-FILL the new filter.

7. Screw the new filter on to the filter head as specified by the filter manufacturer. Note: Mechanical overtightening can damage the filter element.

8. Prime the fuel system using the hand primer on the secondary fuel filter/water separator before starting the engine.

Loosen the plug on the top of the secondary fuel filter. Pump the hand primer until fuel begins to seep out around the loosened plug, continue to pump until no air bubbles are visible (approximately 30 pumps). Tighten the plug. Pump the hand primer 30 more times.

FUEL WATER SEPARATOR (6200901 TO 6205000)

WARNING Drain fuel filter into a container and dispose of all fluids properly.

9. Start the engine and check for leaks. Refer to STARTING ENGINE in SECTION 2 of the OPERATOR'S MANUAL. Continued on page 16

3.15

Tigercat 620C Skidder

Lubrication and Maintenance

Changing the secondary fuel filter/water separator:

8. Install the water in fuel sensor in the new filter.

(Inspect water in fuel sensor for damage and replace as required.)

1. Park machine on level ground, install articulation lock bar, lower dozer and grapple to the ground, stop engine, engage parking brake and block wheels.

9. Check the seating area for the o-ring on the filter head and wipe clean.

2. Wipe clean the area around the filter and head.

10. Lubricate the o-ring on top of the new filter with clean engine oil. DO NOT PRE-FILL the new filter.

3. Use filter drain to drain fuel out of the filter for approximately 5 seconds. This will prevent fuel from running over the top of the filter when it is removed.

11. Screw the new filter on to the filter head as specified by the filter manufacturer. Note: Mechanical overtightening can damage the filter element.

4. Disconnect the water in fuel sensor from the wiring harness.

12. Connect water in fuel sensor to the wiring harness.

5. Place rags below to catch the spillage of fuel.

13. Prime the fuel system using the hand primer on the secondary fuel filter/water separator before starting the engine.

6. Wearing face protection (in case of a fuel spray) unscrew the old filter. Dispose of any fuel properly .

Loosen the plug on the top of the secondary fuel filter. Pump the hand primer until fuel begins to seep out around the loosened plug, continue to pump until no air bubbles are visible (approximately 30 pumps). Tighten the plug. Pump the hand primer 30 more times.

7. Remove the water in fuel sensor from the fuel filter. Dispose of the fuel filter properly.

PRIMARY FUEL FILTER SECONDARY FUEL FILTER/ WATER SEPARATOR

PLUG

• HAND PRIMER

••

14. Start the engine and check for leaks. Refer to STARTING ENGINE in SECTION 2 of the OPERATOR'S MANUAL.

• ••

DRAIN VALVE WATER IN FUEL SENSOR

•• • 620C-86

FUEL WATER SEPARATOR (6200901 TO 6205000)

WARNING Drain fuel filter into a container and dispose of all fluids properly.

3.16

Tigercat 620C Skidder

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: NOTE: This should only be required if excessive quantities of foreign material has built up inside the tank.

1. Park machine on level ground, install articulation lock bar, lower dozer and grapple to the ground , stop engine, engage parking brake and block wheels.

2. Drain the fuel tank. (plug in bottom) 3. Remove the round fuel tank 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).

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.

3.17

Tigercat 620C Skidder

Lubrication and Maintenance Changing the filters:

HYDRAULIC OIL DOUBLE ELEMENT FILTERS

• •

•

HYDRAULIC TANK

1. Park machine on level ground, install articulation lock bar, lower dozer and grapple to ground, stop engine, engage parking brake and block wheels.

BREATHER

DOUBLE ELEMENT FILTER

2. Wipe clean the area around the filter and head.

BLUE ELEMENT

•

3. Place rags below to catch the spillage of oil.

• HYDRAULIC HAND FILL PUMP

4. Wearing face protection (in case of an oil squirt), unscrew the old filter. Dispose of old filter and any oil properly.

SIGHT GAUGE

5. The new Tigercat filter is supplied with two gaskets enclosed, examine the filter head closely to determine which gasket should be used and follow the instructions to ensure proper installation.

•

•

AXLE FILTER

•

•

• •

CHARGE PRESSURE FILTER

GASKET

• 620C-07B

FILTER HEAD

HYDRAULIC TANK, FILTERS AND SIGHT GAUGE

FILTER ELEMENT

SQUARE SECTION GASKET INSTALLATION

The hydraulic oil cooling circuit contains a double filter head with a built in restriction indicator and a 25 psi (1.7 Bar) bypass valve. In the event of a clogged filter element or thicker oil on cold starts, this bypass filter will open and redirect oil around the filter element. When the filter elements become restricted, the Red pop-up indicator will show RED, indicating that the elements must be changed. It is recommended that all machines use two different filter elements:

FILTR_SEALS 2

Square Section Gasket Remove used gasket and clean groove in head.

Apply clean oil to new gasket surfaces.

Install new gasket into groove in filter head.

Screw on new filter until gasket makes contact.

Tighten filter an additional 3/4 turn.

1 white, Tigercat high performance, full flow hydraulic oil filter element

DO NOT use bottom nut for filter installation or damage/leakage may result. Bottom nut is to assist in filter removal only.

1 blue, Tigercat water absorbing, full flow hydraulic oil filter element.

FILTER HEAD

Refer to SCHEDULED MAINTENANCE and SERVICE AND LUBRICATION POINTS in THIS SECTION.

• • GASKET

• FILTR_SEALS 2

z

FILTER ELEMENT

'O' RING GASKET INSTALLATION 'O' Ring Gasket

Remove used gasket and clean gasket seat in head.

Apply clean oil to new gasket surfaces.

Install new gasket on inside lip of filter.

3.18

Tigercat 620C Skidder

Lubrication and Maintenance

Screw on new filter until gasket makes contact.

Tighten filter until top edge makes metal to metal contact with filter head. (approximately 1 1/2 additional turns after gasket contact)

HYDRAULIC FILTER SERVICING GUIDELINES IMPORTANT

DO NOT use bottom nut for filter installation or damage/leakage may result. Bottom nut is to assist in filter removal only.

NEVER PRE-FILL HYDRAULIC FILTERS

6. Start the engine and check for leaks.

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.

CHARGE PRESSURE FILTER The charge circuit contains a single element, full flow Tigercat hydraulic filter with a 50 psi (3.5 Bar) third port bypass valve. When a restriction is encountered, the bypass valve diverts oil back to tank via the third port to prevent unfiltered oil from entering the charge circuit.

AXLE PRESSURE FILTER The hydraulic axle circuit is equipped with a full flow pressure filter with a 50 psi (3.5 Bar) third port bypass valve. When a restriction is encountered the bypass valve diverts oil back to the axle circuit reservoir in the front axle to prevent unfiltered oil from entering the axle circuit.

The axle return oil filters require changing every 500 hours and when repairing a leaking or failed axle.

Changing a pressure filter: 1. Park machine on level ground, install articulation lock bar, lower dozer and grapple to ground, stop engine, engage parking brake and block wheels.

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 OF THIS MANUAL. Use of hydraulic oil filters other than the Tigercat brand could lead to severe wear and rapid failure of hydraulic system components.

WARNING

2. Wipe clean the area around the filter and head.

3. Place rags below to catch the spillage of oil.

4. Wearing face protection (in case of an oil squirt), unscrew the old filter.

WARNING, HOT HYDRAULIC OIL AND HOT MACHINE SURFACES CAN CAUSE SERIOUS BURNS!

5. Drain filter and dispose of any oil properly.

6. Check the seating area for the gasket on the filter head and wipe it clean.

7. This filter has an o-ring gasket. Replace o-ring as required and apply hydraulic oil to the gasket surface.

•

Before servicing the machine, allow the 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)!

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.

DO NOT use bottom nut for filter installation or damage/leakage may result. Bottom nut is to assist in filter removal only.

10. Start the engine and check for leaks.

3.19

Tigercat 620C Skidder AIR CLEANER MAINTENANCE

Lubrication and Maintenance

AIR INLET HOOD (IF EQUIPPED)

3

3

The optional air inlet hood protects the air inlet from rain, snow and debris. The air inlet hood should be checked every 8 hours to make sure that foreign materials have not plugged air inlet area. Clean as required.

4

2

ENGINE AIR PRECLEANER

1

•• AIR CLEANER

5

•

630C-19

AIR CLEANER UNLOADER VALVE

• 620C-05

ENGINE AIR CLEANER EARLIER MACHINES (6200501 TO 6200900)

•

OPERATION: 1. Air enters the precleaner.

2. Specially designed vanes move dirty air toward the impeller.

3. The spinning impeller spins the air creating centrifugal force to separate contaminants from the clean air.

4. Contaminants are blown out the discharge louver.

5. Clean air enters the intake to the air cleaner.

ENGINE AIR PRECLEANER

IMPORTANT The air inlet hood or air precleaner must be check every 8 hours and cleaned as required.

AIR INLET HOOD AIR CLEANER

If the inlet/precleaner is plugged causing a restriction to airflow, reduced engine performance and increased fuel consumption may result.

• AIR CLEANER UNLOADER VALVE

If a plugged inlet/precleaner is left too long excessive air intake restriction may damage the rubber air intake tube. A damaged air intake tube will lead to ingestion of dirt into the engine which may result in engine failure.

• 620C-84

CENTRI® PRECLEANER OPERATION

ENGINE AIR CLEANER LATER MACHINES (6200901 TO 6205000)

Note that the air filter restriction indicator may not function properly if the air intake tube is damaged.

AIR PRECLEANER (IF EQUIPPED)

Engine failures due to improper maintenance are not covered by Tigercat or Engine Manufacturer’s Warranty and any such claim will be denied.

The optional 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. The air precleaner should be checked every 8 hours to make sure that foreign materials have not plugged the intake area or the discharge louver area. Clean as required.

3.20

Tigercat 620C Skidder

Lubrication and Maintenance AIR CLEANER UNLOADER VALVE

IMPORTANT

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

For peak engine performance and maximum fuel economy, please ensure that the air inlet hood or air precleaner is regularly checked and cleaned as required. All intake air tubes and clamps should be thoroughly inspected on a regular basis and any damaged or missing components should be replaced immediately.

AIR CLEANER

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 should be soft and flexible. If it is plugged, be sure to check the filter elements as they may need replacing as well. Reattach the valve to the tube.

The air cleaner on this machine uses two filter elements, a primary element and a safety element accessible from the right side of the engine compartment.

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.

A filter restriction indicator is mounted to the output side of the filter, this should show green when the engine is running under load. Service is required if the indicator shows red. Later machines may be equipped with a switch used to send a signal to the computer control system in the event of a filter restriction.

FILTER RESTRICTION INDICATOR

••

AIR CLEANER

••

• ENGINE AIR PRECLEANER

ENGINE AIR CLEANER EARLIER MACHINES (6200501 TO 6200900)

620C-06

FILTER RESTRICTION SWITCH (IF EQUIPPED) FILTER RESTRICTION INDICATOR

•• •

AIR CLEANER

620C-85

•

In addition to the LUBRICATION AND MAINTENANCE SCHEDULE, 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 is actually more efficient than one that is clean. A filter with dust build up on the media reaches nearly 100% dust cleaning efficiency. Only when a filter is so clogged with dirt that air restriction goes beyond engine manufacturer's guidelines, should a filter be replaced.

NOTE: This does not apply to oil filters.

IMPROPER SERVICING Engine exposure to dust during servicing is the largest single reason for engine damage due to dust.

Abrasive dust can easily enter the intake system once the air cleaner cover and protective filter element is removed for replacement. The safety element does reduce this risk but it should also be replaced at every third primary element change.

••

Continued on page 22

ENGINE AIR PRECLEANER

ENGINE AIR CLEANER LATER MACHINES (6200901 TO 6205000) 3.21

Tigercat 620C Skidder

Lubrication and Maintenance

Continued from page 21 OUTLET TUBE PRIMARY ELEMENT

•

•

SAFETY ELEMENT

AIRCLEANER

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. Always clean the sealing surface of the outlet tube before inserting a new filter element.

4. Always clean the inside of the outlet tube and filter housing.

5. Check your old filter, It can help you 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.

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 air tight fit.

Ensure that all clamps, bolts and connections are tight. Check rubber elbows for splits or wear points. Leaks here send dust directly to the engine.

3.22

Tigercat 620C Skidder GRAPPLE SNUBBER MAINTENANCE IMPORTANT All service points on snubbers must be greased every shift (8 hours) to ensure a long service life.

FRICTION SLEEVE REPLACEMENT QUADCO MODEL 500 SNUBBERS 1. Park machine on level ground, install articulation lock bar, lower dozer and grapple to ground, stop engine, engage parking brake and block wheels.

2. Remove the snubber end cap bolt, end cap, bearing, spring washers and housing.

QUADCO MODEL 500 SNUBBER USED ON TIGERCAT GRAPPLES In this model the snubbers are independent of the link. Separate snubbers or pairs of snubbers provide snubbing action in two directions. There are 3 grease fittings on each snubber for daily lubrication of the sleeves and housings. Grapple installations use 2 or 3 model 500 snubbers depending on the type of grapple and yoke. Be sure to lubricate all the grapple snubbers on your machine.

ADJUSTING SNUBBER TENSION Tension is adjusted by tightening the end cap bolt.

Tighten the end cap bolt only 1/2 turn at a time until the desired tension is achieved.

Note: Overtightening may result in grapple stiffness and reduced friction sleeve life. Applying too much pressure may press the spring washer flat causing all tension to be lost.

GREASE FITTINGS (3 PER SNUBBER)

LINK

Lubrication and Maintenance

3. Remove the friction sleeve from the core assembly using a pry bar on each side to loosen it. Note: Loctite® is used for friction sleeve installation. Heat may be required to loosen the sleeve for removal.

4. Clean the core assembly to remove any Loctite® residue.

5. Apply a thin coat of Loctite® 620 retaining compound (or equivalent) to the core assembly and to the inner side of the new friction sleeve.

6. Position the friction sleeve so that the cross groove will be lined up with the wear block (Models 500) as shown. Push the friction sleeve onto core assembly.

Check again to be sure the friction sleeve is positioned correctly as shown. Correct positioning of the cross groove is required to ensure proper snubber lubrication and long service life.

7. Apply moly-based grease to the outer friction sleeve surface. Use a generous amount of grease.

• GREASE FITTINGS (3 PER SNUBBER)

8. Reinstall the housing, spring washers, bearing, end cap and end cap bolt.

9. Allow the Loctite® to cure for at least 30 minutes before operating the machine.

CROSS GROOVE POSITION LINED UP WITH WEAR BLOCK

FRICTION SLEEVE SPRING WASHER

WEAR BLOCK

•

• •

SPRING WASHERS

•

END CAP END CAP BOLT

•• •

•

•• ••

CORE ASSEMBLY FRICTION SLEEVE

HOUSING BEARING

END CAP BOLT

• CY044-1 CY023

•• •• •

QUADCO MODEL 500 SNUBBER 3.23

QUADCO MODEL 500 SNUBBER

Tigercat 620C Skidder

Lubrication and Maintenance

ESCO CRG SNUBBER ASSEMBLY USED ON TIGERCAT GRAPPLES In this model the snubbers are part of the link. Two separate snubbers provide snubbing action in two directions. There are 7 grease fittings on each snubber assembly for daily lubrication. Be sure to lubricate all the grapple snubbers on your machine.

Proper lubrication prevents excessive clutch wear.

IMPORTANT All service points on snubbers must be greased every shift (8 hours) to ensure a long service life.

625C-12

ADJUSTING SNUBBER TENSION Each snubber should be adjusted such that: •

It is capable of stopping the grapple within one full swing.

Snubbers that are too loose can allow the grapple to swing violently and cause damage to the grapple and/or other machine components.

•

It is capable of holding the grapple at approximately a 5° angle.

Snubbers that are overtightened can reduce the effect of lubricating grease and cause premature clutch wear.

PROCEDURE Tension is adjusted by removing shims from the snubber.

1. Park machine on level ground, install articulation lock bar, lower dozer and grapple to ground, stop engine, engage parking brake and block wheels.

2. Remove one shim at a time to increase snubber friction.

One split shim at a time can be removed from each snubber without completely removing the end caps. Remove 3 bolts on the left side then loosen 3 bolts on the right side of the snubber enough to separate the end cap from the housing to remove one half of the shim.

Reinstall bolts and tighten in a crisscross pattern.

3. Fill snubber with grease until grease comes out the exhaust port.

3.24

SNUBBER ASSEMBLY

Tigercat 620C Skidder

Lubrication and Maintenance

SNUBBER HOUSING

••

SPLINED SHAFT

GREASE FILL PORT

•• •

•

GREASE EXHAUST PORT

FRICTION PLATE

•

ALIGN TAB ON SHIMS WITH TAB ON END CAP

••

REACTION PLATE

BELLEVILLE WASHERS

•

•• ••

•• •

SHIMS O-RING END CAP

625C-01

ESCO CRG SNUBBER ASSEMBLY 3.25

• ••

Tigercat 620C Skidder PRESSURIZED WATER SYSTEM MAINTENANCE WATER TANK

•

••

CONTROL VALVE

•

Lubrication and Maintenance 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 60 psi [4 Bar]) the system needs to be PURGED. Refer to PURGING PRESSURIZED WATER SYSTEM in THIS SECTION.

DOZER BLADE

••

After testing, the tank must be refilled and pressurized to 60 psi (4 Bar). Refer to the following FILL AND CHARGE procedure. This FILL AND CHARGE procedure should be carried out yearly.

HOSE STORAGE COMPARTMENT

FILL & CHARGE PRESSURIZED WATER SYSTEM 620C-41

PRESSURIZED WATER SYSTEM A water tank is incorporated into the dozer blade and is pressurized to 60 psi (4 Bar). A valve controls the flow of water from the tank to a hose located in the hose storage compartment on the dozer blade.

1. Open water shut off valve and completely discharge all water and compressed air from the tank via the hose end nozzle.

CAUTION Never remove fill plug before 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.

The control valve incorporates an air charge valve, a pressure gauge and a relief valve on the outlet side of the valve. A ball valve is installed on the outlet side of the valve and is used to shut off the water supply to the hose. This ball valve should be in the OFF position when the system is not in use.

The pressure gauge on the valve should read 60 psi (4 Bar) check system pressure daily.

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.

DOZER BLADE

•

PRESSURE GAUGE

WATER TANK FILL PLUG

OUTLET CONNECTION

•• •• AIR CHARGE VALVE

•

••

•• WATER SHUT-OFF VALVE (SHOWN OFF)

620C-42

WATER CONTROL VALVE

Refer also to FIRE PREVENTION in SECTION 1 of THIS MANUAL.

620C-37

••

PRESSURIZED WATER SYSTEM

3. Close water shut off valve.

4. Fill tank with clean water.

When temperatures below 32°F (0°C) are anticipated, use a 60/40 solution of Nontoxic R. V. Antifreeze or other suitable antifreeze.

Antifreeze solution must meet GM 6038M specifications.

3.26

Tigercat 620C Skidder NOTE: Most Nontoxic R.V. 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.

5. Install fill plug in tank.

NOTE: This is a special plug designed to withstand pressurization of the water tank.

Do not substitute.

Lubrication and Maintenance PURGING PRESSURIZED WATER SYSTEM Purging should be carried out whenever the flow of water does not forcefully discharge from the end of the hose with the pressure gauge reading 60 psi (4 Bar).

1. Open water shut off valve and completely discharge all water and compressed air from the tank via the hose end nozzle.

CAUTION

6. Pressurize the system to 60 psi (4 Bar) as indicated on pressure gauge by connecting an air hose to air charge valve beside the pressure gauge.

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.

7. Open the water shut off valve.

8. Discharge about 1/2 US gal (2 L) of fluid into an empty antifreeze jug or other suitable container.

There will be significant foaming as the fluid is discharged into the jug. Continue until a very forceful flow is obtained and any contamination that may have been in the tank is flushed from the system.

9. Check fluid in the jug for contamination. If fluid is dirty dispose of it properly.

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 US gal (8 L) of CLEAN water to the tank.

4. Install the fill plug NOTE: This is a special plug designed to withstand pressurization of the water tank.

Do not substitute.

10. Close the water shut-off valve.

11. Release pressure and fluid from the hose.

12. Pressurize the system to 60 psi (4 Bar) as indicated on pressure gauge by connecting an air hose to air charge valve beside the pressure gauge.

13. Return the hose to the hose compartment.

5. Pressurize the system to 60 psi (4 Bar) 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 620C Skidder

Lubrication and Maintenance

CHECKING THE AIR CONDITIONING SYSTEM

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.

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' rings and fittings during assembly.

CAUTION

A/C SYSTEM TOTAL CAPACITIES R134a REFRIGERANT

PAG OIL (polyalkylene glycol)

1.76 kg (3 lbs 14 oz)

0.25 kg (9 oz)

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 30 psi (2 Bar) or less.

Always use personal protective equipment to guard against flying debris.

The compressor and charge valves are accessed from the left side engine compartment. The receiver dryer is mounted in the compartment behind the right cab door, on the outside of the cab.

CAUTION

Perform following inspection along with 125 HOURS inspection outlined in SCHEDULED MAINTENANCE in THIS SECTION.

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.

a. Check re-circulating and fresh air filters in operator's cab. Refer to SECTION 2 of the OPERATOR'S MANUAL.

d. Check and adjust compressor drive belt tension. e. Check all A/C hoses for kinks.*

CHECK A/C CONDENSER CORE

f.

••

Run air conditioning system for 3 - 5 minutes.

g. Check air temperature exiting vents in cab. h. Listen to compressor and blower motor for abnormal noises.* i.

620C-10

CHECK A/C CONDENSER CORE

b. 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. c. Check for dirt and debris; on the evaporator coil located inside the A/C-heater unit and also the inside of the A/C-heater unit. Clean as required.

3.28

Check to see that compressor clutch will engage.*

Tigercat 620C Skidder SIGHT GLASS INDICATES CONDITION OF CHARGE

Lubrication and Maintenance

• •

BINARY SWITCH, SYSTEM PROTECTION

••

MOISTURE INDICATOR BLUE - OK. PINK - REPLACE DRYER, RECHARGE SYSTEM

•• A/C RECEIVER/DRYER

870-D43

j.

A/C RECEIVER/DRYER

Inspect sight glass on receiver dryer with A/C ON. A constant stream of bubbles indicates system requires charging.* Check colour in moisture indicator; BLUE is OK. PINK indicates desiccant material in dryer is saturated with moisture. In this situation replace receiver/dryer, evacuate system and recharge system with both refrigerant and PAG oil.* * Indicates that these repairs must only be carried out by a certified A/C technician.

For additional SERVICE information refer to the Tigercat A/C SERVICE MANUAL part number 18795A, available from Tigercat parts department.

3.29

Tigercat 620C Skidder TILTING THE CAB

Lubrication and Maintenance CAB SWEEP BOLTS

NOTE: The cab tilt circuit is closed and does not normally require scheduled maintenance other than lubrication of cylinders and pivot points.

Tigercat recommends the use of DEXTRON III TYPE transmission fluid in this circuit (total circuit capacity 1 L [0.25 US gal]). The fill port is located on the pump.

••

WARNING Before tilting the cab, ensure that the machine is parked on level ground. Lower the dozer blade and grapple on to the ground.

Engage the parking brake and turn the ignition switch off.

620C-12

RAISING THE CAB 1. Position the Skidder on level ground.

2. Lower the Grapple and Dozer to the ground.

3. Engage parking brake and turn ignition off.

4. Remove the sweep mounting bolts at the cab.

(2 bolts) 5. Remove the right side Cab Locking Pins (2 pins). This is done by first removing the locking bolts. (2 bolts)

620C-32

6. Remove the right front lower access panel to access the cab tilt hand pump.

•

LOCATED ON THE RIGHT SIDE AT THE FRONT OF THE ENGINE COMPARTMENT

PUMP HANDLE

• CAB LOCKING PINS

•• 620C-33

PUMP

620C-19

•

•

PUMP LEVER SHOWN IN "RAISE" POSITION

PUMP CONTROL LEVER IN RAISE CAB POSITION

CAUTION

7. Turn the lever on the pump manifold to RAISE (pointing to the front of the machine).

Keep hands away from the locking pin area. As the cab passes "top dead centre" it will slowly move on its own to the full extent of the safety cable. DO NOT PUMP BEYOND LIMIT OF SAFETY CABLE.

8. Insert handle into pump and pump in a steady manner to raise the cab to the tilt position.

The pump handle is stored in brackets inside the cab.

9. Insert CAB SUPPORT BRACE for partial tilt.

Secure brace at each end with the cab locking pins. Full tilt is limited to the length of the safety cable and is beyond centre of gravity.

The cab will stay at this limit provided Skidder is on level ground.

311-2

3.30

PUMP HANDLE STORAGE

Tigercat 620C Skidder

Lubrication and Maintenance

WARNING

WARNING

Before working under cab; Machine must be parked on level ground.

Cab must be fully tilted with safety cable completely tight, or cab support brace must be installed.

If cab support brace is damaged or lost, it must be replaced immediately with Tigercat brace PART NO. 3291B. DO NOT attempt to work under a raised cab supported only by the hydraulic cylinder or a substitute device.

WARNING If cab safety cable is damaged or lost, it must be replaced immediately with Tigercat PART NO. 3361B. DO NOT attempt to work under a raised cab supported only by the hydraulic cylinder or a substitute device.

LOWERING THE CAB 1. Clear the area under the cab of obstructions and secure all lines and wires.

2. If the Cab Support Brace was used, you may have to take the weight off of it by slightly raising the cab before removing it.

CAB SUPPORT BRACE STORED UNDER SEAT CAB LOCKING PIN

••

PUMP HANDLE

•

SAFETY CABLE CAB SUPPORT BRACE (3291B).

MUST USE CAB & CHASSIS LUGS SHOWN

••

CAB LOCKING PIN

•

PUMP

•• PUMP LEVER SHOWN IN "LOWER" POSITION

•

PARTIAL TILT WITH CAB SUPPORT BRACE

620C-25

LOCATED ON THE RIGHT SIDE AT THE FRONT OF THE ENGINE COMPARTMENT

•

311-13

620C-19

PUMP CONTROL LEVER IN LOWER CAB POSITION

3. Turn the lever on the pump manifold to LOWER (pointing to the rear of the machine)

CAUTION Keep hands away from the locking pin area as the cab is being lowered.

4. Pump the handle in a steady motion to lower the cab.

5. Watch closely for pinching of hydraulic lines and wires.

CAB SAFETY CABLE (3361B)

6. When fully lowered, insert Cab Locking Pins and tighten locking bolts (2 pins) (2 bolts)

•

7. Turn the lever on the pump manifold to point toward the front of the machine and store the pump handle inside the cab.

8. Reinstall the access panel.

620C-21

CAB AT FULL TILT SUPPORTED

BY SAFETY CABLE

9. Replace the Cab Sweep Bolts. (2 bolts) 3.31

Tigercat 620C Skidder ARTICULATION LOCK

Lubrication and Maintenance CENTER JOINT

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

MAINTENANCE OF CENTER JOINT Maintenance in this area is usually limited to:

2. Lower grapple and dozer blade to the ground, engage parking brake, stop engine and remove ignition key.

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.

ARTICULATION LOCK

•

• RETAINING PINS

•

REAR CHASSIS

630C-52

b) Visually checking the center joint pivot for looseness every 48 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.

1. Have operator lift the dozer blade off the ground and then rapidly raise and lower blade several times to "bounce" machine.

ARTICULATION LOCK STORED POSITION

3. Remove both retaining pins from the articulation lock. Relocate articulation lock between front and rear chassis. Line up holes at each end of articulation lock with holes in chassis’ and secure in place with both retaining pins.

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.

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.

4. After work is completed, relocate articulation lock into storage position on rear chassis and hold in place with retaining pins.

REAR CHASSIS

630C-51

CHECK FOR MOVEMENT IN THIS JOINT AREA

ARTICULATION LOCK IN LOCKED POSITION

DIG-003

3.32

FRONT CHASSIS

CENTER JOINT PRE-LOAD CHECK

Tigercat 620C Skidder WINCH MAINTENANCE - ALLIED ONLY LUBRICATION Refer to the manufacturer's maintenance and service manual for information on your winch.

The sump holds 1 US gal (3.8 L).

The oil supplied is Esso Hydraul 56 (Summer) or Esso Hydraul 50 (Winter). Use these oils or the equivalent.

Lubrication and Maintenance MAINTENANCE Maintenance of the winch is limited to the hydraulic system maintenance of the skidder itself.

Periodically check the winch, control valve, and connecting hoses for damage or hydraulic oil leakage. If any problems are found, they should be corrected before operating the winch.

Oil should be changed every 1000 hrs, depending on use.

LOCKSCREW

••

The oil level should be checked every day (if the winch is being used) before starting the machine.

AIR BREATHER/FILLER CAP

• 620C-80

ADJUST THE WINCH FREESPOOL TENSION

ADJUST THE WINCH FREE-SPOOL TENSION If the winch cable requires too little effort to pull it from the cable drum, the tension can be adjusted as follows: 1726

WINCH LUBRICATION

•

Loosen the lockscrew.

•

Tighten the adjusting nut to increase the tension and/or loosen it to decrease it.

•

Tighten the locknut.

• OIL LEVEL PLUG

Continued on page 34

172-8

The oil level should be up to the oil level check plug (remove with allen wrench) on the left side of the winch. Keep the winch sump filled to the correct level by adding oil through the air breather check valve assembly on the left side of the winch.

3.33

Tigercat 620C Skidder CABLE RETAINER PLATE

Lubrication and Maintenance CABLE GROOVE

•• ••

INSTALLING THE WINCH MAINLINE INSTALLING THE WINCH MAINLINE

WARNING Installing the winch mainline as follows will provide a safety break-away feature. If the load should fall down a hillside, the operator should IMMEDIATELY put the winch control in FREESPOOL position. This will allow the cable to unwind freely from the cable drum and break away from the winch, preventing the machine from being pulled over.

•

Start the engine and rotate the winch cable drum so that the cable and ferrule groove in the inside, left hand wall of the drum is at the top and shut down engine.

•

Remove the cable retainer plate capscrews and retainer plate from the cable drum.

•

Insert the cable ferrule into the groove in the drum and hold the cable against the drum.

•

Install the retaining plate and capscrews to hold the cable in place.

•

Start the engine and winch in the cable onto the drum.

3.34

Tigercat 620C Skidder WINCH LUBRICATION - LANTEC ONLY

Lubrication and Maintenance MAIN FILLER/BREATHER PLUG

Refer to the manufacturer's maintenance and service manual for information on your winch.

•

The sump holds 4.7 US gal (18 L). Tigercat recommends the use of tractor hydraulic fluid for the lantec winch. Refer to approved hydraulic oils in this section.

348-21

•

Oil should be changed 1000 hours, depending on use.

OIL LEVEL SIGHT GAUGE

The oil level should be checked every day (if the winch is being used) before starting the machine.

The oil level should be up to the oil level sight glass on the left side of the winch.

348-22

LANTEC WINCH - LEFT SIDE

ADDING OIL-LANTEC MODEL 40 WINCH 1. To avoid underfilling the lantec model 40 winch it is necessary to fill first the right side of the winch and then the left side.

2. Remove the auxiliary level plug located on the right side of the winch. Fill the right side of the winch until the oil level reaches the auxiliary level plug. Replace the auxiliary level plug.

•

3. Remove the main filler/breather plug, the top plug on the left side of the winch. Fill the left side of the winch until the oil level reaches the oil level sight glass. Replace the main filler/ breather plug.

AUXILIARY LEVEL PLUG

348-23

3.35

LANTEC WINCH - RIGHT SIDE

Tigercat 620C Skidder

Lubrication and Maintenance

AXLE OIL LEVEL CHECK AND AXLE CIRCUIT FILL

AXLE OIL LEVEL CHECK

The 620C is equipped with an axle hydraulic circuit which is completely separate from all other hydraulic circuits. The front axle acts as a reservoir for the axle hydraulic circuit.

1. Park machine on level ground, install articulation lock bar, lower dozer and grapple to the ground, stop engine, engage parking brake and block wheels. Place drain pan or other suitable container under the front axle.

Always keep the axle hydraulic circuit filled to the correct level. A low axle hydraulic oil level can result in severe damage to the axle pump.

FILL LEVEL PLUGS

•

•

Refer also AXLE CIRCUIT RESERVOIR - FRONT AXLE in SECTION 2 of THE OPERATOR'S MANUAL. Before starting work, read and follow all “servicing safety precautions” as listed in SECTION 1 of THIS MANUAL.

630C-132

FRONT AXLE OIL LEVEL FILL PLUGS

Refer to APPROVED HYDRAULIC OILS ~ AXLE CIRCUIT in THIS SECTION for a list of approved hydraulic oils.

2. Using a 1/2 in (25 mm) square drive bar, remove one of the fill level plugs from the front axle*.

Perform this procedure only when the axle is cold.

*NOTE: Some later SWEDA front axles are equipped with a dipstick to check oil level.

IMPORTANT Note that the 620C skidder has two separate hydraulic systems (the main hydraulic system and the axle circuit). These two hydraulic systems require two different types of hydraulic oil that MUST NOT BE INTERCHANGED under any circumstances.

3. Oil level should reach the bottom of the oil fill level plug (* or lowest dipstick marking if equipped. Note that a slight overfill indicated by the dipstick is OK if the level plug indicates OK).

If the oil is correct : Re-plug the fill level hole. Proceed to Step 14.

If the oil is too high:

Always use the correct type of hydraulic oil for the circuit you are filling. Refer to APPROVED HYDRAULIC OILS in SECTION 3 of THIS MANUAL.

Let the oil drain out of the axle until the level is correct. Re-plug the fill level hole.

Proceed to Step 14.

If the oil is too low: Oil must be added. Continue with the procedure.

If you have an oil fill pump follow steps 4 through 8.

If you are filling from gallon or quart jugs follow Steps 9 through 13.

Dispose of all fluids properly.

DIPSTICK

••

620C-103

3.36

*NOTE: SOME LATER SWEDA FRONT AXLES ARE EQUIPPED WITH A DIPSTICK TO CHECK OIL LEVEL.

LATER SWEDA AXLE WITH DIPSTICK FRONT AXLE ONLY

Tigercat 620C Skidder

Lubrication and Maintenance

FILLING AXLE CIRCUIT USING AN OIL FILL PUMP

VIEW FROM RIGHT SIDE OF ENGINE COMPARTMENT

NOTE: This filling procedure should be used only to top up the axle hydraulic oil level. If differential lock function has been affected by extremely low axle hydraulic oil levels refer to AXLE OIL FILL AND BLEED in SECTION 15 of the SERVICE MANUAL for a more detailed filling procedure.

CAP BULK HEAD FITTING

4. Disconnect the drain line (between front axle and bulkhead) at the bulkhead as shown. Cap the bulkhead fitting to avoid contamination of the axle hydraulic circuit.

CAP BULK HEAD FITTING

•• LINE FROM PUMP

••

DRAIN LINE (BETWEEN FRONT AXLE AND BULKHEAD)

SUCTION LINE (BETWEEN FRONT AXLE AND BULKHEAD)

•• •

630C-130

FILLING AXLE CIRCUIT WITHOUT AN OIL FILL PUMP

10. Using a funnel connected to the suction line, use gallon or quart jugs to add oil to the axle until it begins to flow from the fill level hole.

Oil level should reach the bottom of the oil fill level plug.

11. Re-plug the fill level hole.

CAP BULK HEAD FITTING

•

FILLING AXLE CIRCUIT USING AN OIL FILL PUMP 5. Connect the line from the oil fill pump to the drain line.

VIEW FROM LEFT SIDE OF ENGINE COMPARTMENT

620C-38

•

6. Pump oil into the front axle until it begins to flow from the fill level hole.

Oil level should reach the bottom of the oil fill level plug.

••

7. Re-plug the fill level hole.

620C-40

8. Proceed to Step 14.

FILLING AXLE CIRCUIT WITHOUT AN OIL FILL PUMP NOTE: This filling procedure should be used only to top up the axle hydraulic oil level. If differential lock function has been affected by extremely low axle hydraulic oil levels refer to AXLE OIL FILL AND BLEED in SECTION 15 of the SERVICE MANUAL for a more detailed filling procedure.

9. Disconnect the suction line (between front axle and bulkhead) at the bulkhead as shown. Cap the bulkhead fitting to avoid contamination of the axle hydraulic circuit.

SUCTION LINE (BETWEEN FRONT AXLE AND BULKHEAD)

FILL SUCTION LINE

12. Disconnect the suction line (between axle pump and bulkhead) at bulkhead as shown.

Cap the bulkhead fitting to avoid contamination of the axle hydraulic circuit.

13. Fill the suction line with as much oil as possible.

COMPLETING THE PROCEDURE 14. Reconnect all hoses disconnected during this procedure. Care should be taken to ensure all hoses and fittings are kept clean to avoid contamination of the hydraulic circuit.

15. Replace all pans and panels.

3.37

Tigercat 620C Skidder STARTUP PROCEDURE AFTER MAJOR MACHINE MAINTENANCE

Lubrication and Maintenance •

Prepare the hand fill pump on the machine to add hydraulic oil. Clean the fill line pipe, remove cap on end of pipe and insert pipe into oil supply drum.

•

Loosen the plug on the top of the left hand drive motor.

(6200501 TO 6200900) This procedure should be followed: •

after major service or a rebuild.

•

whenever the machine has been drained of hydraulic oil.

•

Operate the hand fill pump at medium speed, using a steady motion.

•

when any major component has been removed, repaired or replaced.

•

Watch for oil leaking from the plug previously loosened and tighten plug when oil leaks out.

•

Continue pumping slowly and watch the oil sight gauge on the reservoir. Continue pumping slowly until the hydraulic tank is full.

PRE-STARTUP AND FILLING 1. Ensure all filters are in place. Refer to FILTERS in THIS SECTION. 2. Check oil levels in the engine, transmission, main hydraulic tank, front axle (axle circuit reservoir ), winch (if equipped) and cab tilt system.

NOTE: If the axles were drained of oil, refer to AXLE OIL FILL AND BLEED in SECTION 15 of THE SERVICE MANUAL. MACHINE STARTUP

3. Check coolant level in the radiator.

Before beginning this procedure, perform the PRE-STARTUP AND FILLING steps.

4. Do a final inspection of all fittings and clamps to make sure they are tight and will not leak.

1. Ensure the articulation lock bar is installed.

5. Install the articulation lock bar and engage the parking brake.

CAUTION

6. Turn differential lock switch to OFF.

Machine operator must ONLY take directions from the person doing the set-up.

7. Do not start engine. Purge air from hydraulic system by adding oil as follows: •

Pre-fill the cases of the hydrostatic drive pump, main pump and any other components that have been drained of oil with clean, filtered hydraulic oil.

CASE DRAIN MAKE-UP LINE

••

TEE CONNECTOR

DISCONNECT THE TWO 12 PIN CONNECTORS (GROUND BUSBARS ~BLACK WIRES)

• • 620C-03

OIL FILL LINE

620C-46

•

•

RIGHT HAND DRIVE MOTOR DISCONNECT CASE DRAIN LINE

Disconnect the case drain make-up line from the tee connection on the right hand drive motor and pre-fill the right hand drive motor with clean, filtered hydraulic oil.

ENGINE 12 PIN CONNECTOR (GROUND BUSBAR)

2. Disconnect the two 12 pin connectors (ground busbars - black wires) on the electrical box (prevents engine starting).

3. Crank engine for 10 seconds, wait for 10 seconds. Repeat 6 times to pump oil into pumps.

4a. Check hydraulic oil levels in the main hydraulic tank and add hydraulic oil as required.

Watch for oil leaking from tee connection and reconnect case drain line when oil leaks out.

3.38

Tigercat 620C Skidder

Lubrication and Maintenance 8. Bleed brakes (front axle) if required.

IMPORTANT

Prior to bleeding brakes disconnect the two connectors on the drive pump. This is a safety precaution to prevent the machine from travelling while brake bleeding is being performed.

Note that the 620C skidder has two separate hydraulic systems (the main hydraulic system and the axle circuit). These two hydraulic systems require two different types of hydraulic oil that MUST NOT BE INTERCHANGED under any circumstances.

With engine at IDLE, parking brake ON, hold foot brake down, bleed brakes in front axle (both sides). Refer also to AXLES ~ SERVICE BRAKES ~ BRAKE BLEEDING in SECTION 15 of the SERVICE MANUAL.

Always use the correct type of hydraulic oil for the circuit you are filling. Refer to APPROVED HYDRAULIC OILS in SECTION 3 of THIS MANUAL.

Reconnect two connectors on drive pump.

4b. Check axle circuit reservoir oil level (in front axle) and add hydraulic oil as required. Refer to AXLE OIL LEVEL CHECK AND AXLE CIRCUIT FILL in THIS SECTION.

9. Set throttle to IDLE and run each function for 2 minutes to purge air from circuit.

5. Reconnect the two 12 pin connector (ground busbars) on the electrical box.

11. Top up the radiator with clean coolant.

10. Set throttle to FULL and run each function again for 2 minutes to flush circuit.

6. Start engine.

12. With cylinders fully retracted, top up the main hydraulic oil reservoir with clean hydraulic oil.

7. Check for leaks.

13. Top up the front axle with clean oil.

DRIVE PUMP CONNECTORS

•

•• ••

620C-35

DISCONNECT TWO CONNECTORS ON DRIVE PUMP PRIOR TO BLEEDING BRAKES (6200501 TO 6200775)

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.

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.

CONNECTORS DRIVE PUMP

•

•• •

620C-89

DISCONNECT TWO CONNECTORS ON DRIVE PUMP PRIOR TO BLEEDING BRAKES (6200776 TO 6200900) 3.39

Tigercat 620C Skidder STARTUP PROCEDURE AFTER MAJOR MACHINE MAINTENANCE

Lubrication and Maintenance •

Prepare the hand fill pump on the machine to add hydraulic oil. Clean the fill line pipe, remove cap on end of pipe and insert pipe into oil supply drum.

•

Loosen the plug on the top of the left hand drive motor.

(6200901 TO 6205000) This procedure should be followed: •

after major service or a rebuild.

•

whenever the machine has been drained of hydraulic oil.

•

Operate the hand fill pump at medium speed, using a steady motion.

•

when any major component has been removed, repaired or replaced.

•

Watch for oil leaking from the plug previously loosened and tighten plug when oil leaks out.

•

Continue pumping slowly and watch the oil sight gauge on the reservoir. Continue pumping slowly until the hydraulic tank is full.

PRE-STARTUP AND FILLING 1. Ensure all filters are in place. Refer to FILTERS in THIS SECTION. 2. Check oil levels in the engine, transmission, main hydraulic tank, front axle (axle circuit reservoir ), winch (if equipped) and cab tilt system.

NOTE: If the axles were drained of oil, refer to AXLE OIL FILL AND BLEED in SECTION 15 of THE SERVICE MANUAL. MACHINE STARTUP

3. Check coolant level in the radiator.

Before beginning this procedure, perform the PRE-STARTUP AND FILLING steps.

4. Do a final inspection of all fittings and clamps to make sure they are tight and will not leak.

CAUTION

5. Install the articulation lock bar and apply the parking brake.

Machine operator must ONLY take directions from the person doing the set-up.

6. Turn differential lock switch to OFF. 7. Do not start engine. Purge air from hydraulic system by adding oil as follows: Pre-fill the cases of the hydrostatic drive pump, main pump and any other components that have been drained of oil with clean, filtered hydraulic oil.

CASE DRAIN MAKE-UP LINE

•

4 PIN ENGINE POWER CONNECTOR

TEE CONNECTOR

•

•

1. Ensure the articulation lock bar is installed.

• • 620C-81

OIL FILL LINE

620C-46

•

•

RIGHT HAND DRIVE MOTOR DISCONNECT CASE DRAIN LINE

Disconnect the case drain make-up line from the tee connection on the right hand drive motor and pre-fill the right hand drive motor with clean, filtered hydraulic oil.

ENGINE 4 PIN POWER CONNECTOR

2. Disconnect 4 pin engine power connector on engine (prevents engine starting).

3. Crank engine for 10 seconds, wait for 10 seconds. Repeat 6 times to pump oil into pumps.

4a. Check hydraulic oil levels in the main hydraulic tank and add hydraulic oil as required.

Watch for oil leaking from tee connection and reconnect case drain line when oil leaks out.

3.40

Tigercat 620C Skidder IMPORTANT Note that the 620C skidder has two separate hydraulic systems (the main hydraulic system and the axle circuit). These two hydraulic systems require two different types of hydraulic oil that MUST NOT BE INTERCHANGED under any circumstances.

Always use the correct type of hydraulic oil for the circuit you are filling. Refer to APPROVED HYDRAULIC OILS in SECTION 3 of THIS MANUAL. 4b. Check axle circuit reservoir oil level (in front axle) and add hydraulic oil as required. Refer to AXLE OIL LEVEL CHECK AND AXLE CIRCUIT FILL in THIS SECTION. 5. Reconnect 4 pin engine power connector on engine.

6. Start engine.

7. Check for leaks.

Lubrication and Maintenance 9. Set throttle to IDLE and run each function for 2 minutes to purge air from circuit.

10. Set throttle to FULL and run each function again for 2 minutes to flush circuit.

11. Top up the radiator with clean coolant.

12. With cylinders fully retracted, top up the main hydraulic oil reservoir with clean hydraulic oil.

13. Top up the front axle with clean oil.

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.

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.

CONNECTORS DRIVE PUMP

•

• ••

620C-89

DISCONNECT TWO CONNECTORS ON DRIVE PUMP PRIOR TO BLEEDING BRAKES

8. Bleed brakes (front axle) if required.

Prior to bleeding brakes disconnect the two connectors on the drive pump. This is a safety precaution to prevent the machine from travelling while brake bleeding is being performed.

With engine at IDLE, parking brake ON, hold foot brake down, bleed brakes in front axle (both sides). Refer also to AXLES ~ SERVICE BRAKES ~ BRAKE BLEEDING in SECTION 15 of the SERVICE MANUAL. Reconnect two connectors on drive pump.

3.41

Tigercat 620C Skidder

Lubrication and Maintenance

TORQUE CHART LOCATION

DIAMETER

Cylinders Piston nut, steer cylinder Piston nut, arc/boom cylinder Piston nut, dozer cylinder Gland, steer cylinder Keeper plate bolts Keeper plate bolts

1 3/4" UNF 1 3/4" UNF 1 3/8" UNF 3/4" UNC 5/8" UNC

1750 1750 1260 550 282-310 159-175

2372 2372 1708 745 393-420 216-237

Cab pin keeper plate bolts

3/4" UNC

282-310

393-420

Center joint bearing Bearing retaining bolts Pin retaining bolts

1/2" UNC 3/4" UNC

80-88 282-310

109-119 393-420

Engine mounting Front Rear

7/8" UNC M12

364 80

493 108

Pump Mounting (Early machines) Drive pump to flywheel adapter plate Adapter plate to drive pump Flywheel adapter plate to flywheel housing Torsional drive coupler to flywheel Main pump to adapter plate Multisection pump to main pump

3/4" M14 M10 3/8" M16 M12

282-310 130 42 33-36 200 80

393-420 176 57 45-49 271 109

Pump Mounting (Later machines) Drive pump to flywheel adapter plate Flywheel adapter plate to flywheel housing Torsional drive coupler to flywheel Main pump to adapter plate Multisection pump to main pump

3/4" M10 3/8" 5/8" M12

282-310 42 33-36 159-175 80

393-420 57 45-49 216-237 109

1 1/4" x 18 UNEF 3/4" UNC

475-525 282-310

640-711 393-420

1/2" UNF

120-132

163-179

1/2" UNF

120-132

163-179

1/2" UNF

120-132

163-179

Axle mounting bolts Front Rear

3/4" UNC 7/8" UNC

282-310 455-501

393-420 617-679

Wheel bolts

7/8" UNF

501-550

679-745

Transmission Housing to Mounting Bracket Mounting Bracket to Frame

5/8"UNC 7/8" UNC

159-175 364

216-237 493

Drive shafts Yoke retaining nut, rear shaft Pillow block retaining bolts Rear drive shaft universal joint bolts Mid. drive shaft universal joint bolts Front drive shaft universal joint bolts

TORQUE (LUBRICATED) lbf-ft Nm

TORQUECHARTR2.XLS 11/07

Torque values pertaining to the engine and attachment are provided in the appropriate manuals.

3.42

Tigercat 620C Skidder

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 8 BOLTS GRADE 5 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" - 12 646 - 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

CLASS 4.8 SIZE LUBRICATED DRY Nm lbf-ft Nm lbf-ft

METRIC BOLT TORQUE SPECIFICATIONS

CLASS 8.8 OR 9.9 LUBRICATED DRY Nm lbf-ft Nm lbf-ft

CLASS 10.9 DRY LUBRICATED 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

3.43

Tigercat 620C Skidder

Lubrication and Maintenance

Par ker ark

Assemb que Assemblly Tor orque

3.44

Tigercat 620C Skidder

Lubrication and Maintenance

Par ker ark

Assemb que Assemblly Tor orque

JIC 37 Degree Flare SAE Dash Size -2 -3 -4 -5 -6 -8 -10 -12 -14 -16 -20 -24 -32 -40

Thread Size 5/16-24 3/8-24 7/16-20 1/2-20 9/16-18 3/4-16 7/8-14 1 1/16-12 1 3/16-12 1 5/16-12 1 5/8-12 1 7/8-12 2 1/2-12 3-12

Tube Connection FFWR

NPTF Swivel or Hose Connection FFWR

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

F.F.W.R : Flats From Wrench Resistance All values are for Steel, Stainless Steel and Brass

-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

SAE Dash Size -2 -3 -4 -5 -6 -8 -10 -12 -14 -16 -20 -24 -32 -40

Thread Size NA NA 9/16-18 NA 11/16-16 13/16-16 1-14 1 3/16-12 NA 1 7/16-12 1 11/16-12 2-12 NA NA

NA NA 1/4 TO 1/2 NA 1/4 TO 1/2 1/4 TO 1/2 1/4 TO 1/2 1/4 TO 1/2 NA 1/4 TO 1/2 1/4 TO 1/2 1/4 TO 1/2 NA NA

F.F.W.R : Flats From Wrench Resistance All values are for Steel, Stainless Steel and Brass

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

Swivel or Hose Connection TFFT

2-3 NA 2-3 NA 2-3 2-3 NA 2-3 NA 1.5-2.5 1.5-2.5 1.5-2.5 1.5-2.5 NA

T.F.F.T. : Turns from finger tight All pipe values are for Steel, Stainless Steel and Brass

O'ring Face Seal / Seal-Lok Tube Connection FFWR

Tube Connection TFFT

Thread Size

BSPT

Swivel or Hose Connection FFWR

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

Thread Size 1/8-28 NA 1/4-19 NA 3/8-19 1/2-14 NA 3/4-14 NA 1-11 1 1/4-11 1 1/2-11 2-11 NA

Tube Connection TFFT 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

3.45

Swivel or Hose Connection TFFT

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

Tigercat 620C Skidder

Lubrication and Maintenance

Assemb que Assemblly Tor orque

EATON Aeroquip 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

ORS

Dash Size -04 -06 -08 -10 -12 -16 -20 -24

Dash Size -03 -04 -05 -06 -08 -10 -12 -14 -16 -20 -24

Thread Size (inches) 3/8-24 7/16-20 1/2-20 9/16-18 3/4-16 7/8-14 1 1/16-12 1 3/16-12 1 5/16-12 1 5/8-12 1 7/8-12

Jam Nut or Jam Nut or Straight Straight Fitting Torque Fitting Torque lb.-ft.

Newton Meters 8-10 11-16 14-16 20-22 18-20 24-27 24-26 33-35 50-60 68-78 72-80 98-110 125-135 170-183 160-180 215-245 200-220 270-300 210-280 285-380 270-360 370-490

SAE 37º (JIC)

Thread Size (inches) 9/16-18 11/16-20 13/16-16 1-14 1 3/16-12 1 7/16-12 1 11/16-12 2-12

Swivel Nut Torque lb.-ft.

10-12 18-20 32-35 46-50 65-70 92-100 125-140 150-165

Swivel Nut Torque Newton Meters 14-16 24-27 43-47 62-68 88-95 125-136 170-190 204-224

Metric Thread Size mm M10x1 M12x1.5 M14x1.5 M16x1.5 M18x1.5 M20x1.5 M22x1.5 M26x1.5 M27x2 M33x2 M42x2 M48x2

Dash Size -04 -05 -06 -08 -10 -12 -16 -20 -24 -32

Thread Size (inches) 7/16-20 1/2-20 9/16-18 3/4-16 7/8-14 1 1/16-12 1 5/16-12 1 5/8-12 1 7/8-12 2 1/2-12

Swivel Nut Torque lb.-ft.

11-12 15-16 18-20 38-42 57-62 79-87 108-113 127-133 158-167 245-258

Swivel Nut Torque Newton Meters 15-16 20-22 24-28 52-58 77-85 108-119 148-154 173-182 216-227 334-352

BSPP Straight Adapter or Locknut Torque lb.-ft.

Newton Meters 13-15 18-20 15-19 20-25 19-23 25-30 33-40 45-55 37-44 50-60 52-66 70-90 55-70 75-95 81-96 110-130 96-111 130-150 162-184 220-250 170-192 230-260 258-347 350-470

Nominal Thread Size Straight Adapter or Locknut Torque inches** lb.-ft.

Newton Meters G1/8-28 13-15 18-20 G1/4-19 19-23 25-30 G3/8-19 33-40 45-55 G1/2-14 55-70 75-95 G3/4-14 103-118 140-160 G1-11 162-184 220-250 G1 1/4-11 170-192 230-260 G1 1/2-11 258-347 350-470 ** "G" denotes parallel threads, other than ISO 6149 (Port connection only)

Eaton Aeroquip Fluid Conveyance Products A-HOOV-MC001-E January 2005

3.46

Tigercat 620C Skidder

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 36 57 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.

3.47

Tigercat 620C Skidder

Lubrication and Maintenance COMMON CONVERSIONS

To Convert

Into

Multiply By

To Convert

Into

Multiply By

Bar cc °C Kg KW Liters mm Nm N

PSI Cu. in. °F lbs.

HP Gallons Inches lb.-ft. lbs.

14.5 0.06102 (°C x 9/5) + 32 2.205 1.341 0.2642 0.03937 0.7375 0.22481

Cu. in. °F Gallons HP Inches lbs. lb.-ft.

PSI In. of HG In. of H2O lbs.

cc °C Liters KW mm Kg Nm Bar PSI PSI N

16.39 (°F - 32) /1.8 3.785 0.7457 25.4 0.4535 1.356 0.06896 . 4912 . 03613 4.4482

3.48