Tigercat M760 MULCHER OPERATOR'S MANUAL - PDF DOWNLOAD

OPERATOR'S MANUAL Tigercat M760 MULCHER ISSUE 2, DECEMBER 2006

TABLE OF CONTENTS SECTION INTRODUCTION .............................................................................................................. iii SAFETY ............................................................................................................................ 1 USING HIGH SPEED DISC SAWS SAFELY ........................... APPENDIX TO SECTION 1 CONTROLS AND OPERATION ........................................................................................ 2 LUBRICATION AND MAINTENANCE ............................................................................... 3

M760-SM00

M760 Available Literature Operator's Manual (760M0101 to 760M0180) (This Manual) ..... Part No. 14673A Operator's Manual (760M0181 and up) ...................................... Part No. 30680A Service Manual (760M0101 to 760M0180) ................................. Part No. 14674A Service Manual (760M0181 and up) ........................................... Part No. 30681A Parts Catalog ................................................................................ Part No. 14672A

Tigercat Tigercat Industries Inc. P.O. Box 544 Paris, Ontario Canada N3L 3T6

Tel: (519) 442-1000

Fax: (519) 442-1855

Tigercat M760 Mulcher

Introduction

ii

Tigercat M760 Mulcher

Introduction

Tigercat M760 MULCHER

INTRODUCTION An Operator's manual, Service manual and a Parts catalog are made available by Tigercat to assist the dealer, customer and operator in becoming familiar with the features of the M760 Mulcher serial number 760M0101 TO 760M0180.

The operator's manual will assist the operator with the techniques of proper and safe operation of the M760 Mulcher. There is also important information regarding the safe operation of the mulching head. The service manual contains safety and servicing procedures and a preventive maintenance schedule 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.

M760-023

iii

Tigercat M760 Mulcher

Introduction

S.A.E. STANDARDS ROLL-OVER PROTECTION STRUCTURES (ROPS) FALLING OBJECTS PROTECTION STRUCTURES (FOPS) OPERATOR PROTECTION STRUCTURES (OPS) * MODIFICATIONS AND REPAIRS: The integrity of the ROPS, FOPS, OPS structure and its continued ability to provide the level of protection it was designed for could be seriously affected by any modifications to the structure, its mounting or to the chassis to which it is attached.

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

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

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

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

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

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

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

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

Tigercat Industries Inc.

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Tigercat M760 Mulcher

Introduction

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

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

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

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

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

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

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

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

Tigercat Industries Inc.

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Tigercat M760 Mulcher

Introduction

vi

Tigercat M760 Mulcher SECTION 1 - SAFETY DECEMBER 2006

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

Read and understand all manuals for any attachments or accessories.

CONTENTS - SECTION 1 ARTICULATION LOCK BAR .......................................................................... 1.14 BOOM LIFT LOCK ........................................................................................ 1.14 CAB EXITS ..................................................................................................... 1.9 EMERGENCY CAB EXITS .............................................................................. 1.9 ENGINE ACCESS PANELS ......................................................................... 1.12 FIRE PREVENTION ...................................................................................... 1.16 FIRE PREVENTION GUIDELINES ............................................................. 1.16 WHAT ELSE TO DO BEFORE YOU EXPERIENCE A FIRE ...................... 1.17 WHAT TO DO AFTER A FIRE ................................................................... 1.18 WHAT TO DO IN CASE OF A MACHINE FIRE .......................................... 1.17 HAZARD ZONE .............................................................................................. 1.3 MULCHING OPERATION SAFETY ............................................................... 1.10 PARKING THE MACHINE ............................................................................... 1.8 SAFETY INTERLOCK SWITCHES ON CAB DOORS ..................................... 1.9 SAFETY PRECAUTIONS, GENERAL ............................................................ 1.2 SAFETY PRECAUTIONS, OPERATING ......................................................... 1.6 SAFETY PRECAUTIONS, SERVICING ........................................................ 1.12 SAFETY SYMBOLS ....................................................................................... 1.2 SIGNAL WORDS ............................................................................................ 1.2

Tigercat M760 Mulcher

Safety

SAFETY SYMBOLS

GENERAL SAFETY PRECAUTIONS Remember that safety is a prime responsibility of all.

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

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

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

The safety alert symbol identifies important safety messages on machines, safety signs, in manuals, or elsewhere. When you see this symbol, be alert to the possibility of personal injury or death.

Follow the instructions in the safety message.

Understanding Signal Words

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

Follow all instructions from safety inspector and supervisors.

You must be fully trained to operate this piece of equipment. Know the capabilities and the limitations of the equipment. Learn the most efficient operating techniques.

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

Do not let an untrained person operate the machine.

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

Use recommended protective clothing and safety devices such as orange safety vest, gloves, safety boots, safety hat, goggles, and ear protection when necessary. These safety rules highlight both general and specific measures the operator should be familiar with and adhere to. More specific measures are illustrated with pictograms which may also be attached to the machine in locations pertinent to their respective message. Keep safety labels in good condition. Repair or replace damaged labels.

1.2

Tigercat M760 Mulcher

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

GENERAL SAFETY PRECAUTIONS continued

KEEP BACK 500 FEET

DANGER ROTATING CUTTER

DANGER

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

Thrown debris keep back 500 feet.

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

500 FEET

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

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

500 FEET

500 FEET

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

500 FEET

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

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

M724D-03

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

HAZARD ZONE

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

Do not use the machine foot controls as a step.

DANGER Danger caused by flying debris.

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

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

1.3

Tigercat M760 Mulcher

Safety

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

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

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

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

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

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

•

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 fluoro-elastomer seals (Viton, fluorel, or tecmoflon) have been used, the affected area must be decontaminated before undertaking further work. Natural rubber and nitrile materials are not hazardous.

•

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.

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

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

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

Check windows and door guards for damage.

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

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

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

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

Check all fluid levels.

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

1.4

Tigercat M760 Mulcher

Safety WARNING WARNING

GENERAL SAFETY PRECAUTIONS continued

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

Maintain a charged fire extinguisher on the vehicle at all times and KNOW HOW TO USE IT. Do not carry passengers either in the cab or anywhere else on the machine. The vehicle is provided and approved with seating for the operator only.

WARNING WARNING Battery posts, terminals and related accessories contain lead and lead compounds.

Wash hands after handling.

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.

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

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

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

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

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.

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

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

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

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

1.5

Tigercat M760 Mulcher

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

OPERATING SAFETY PRECAUTIONS

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

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

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

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

Sound the machine horn before starting the machine.

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

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

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

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

Keep the brake properly adjusted at all times.

Start the engine according to the instructions in this manual. Refer to OPERATING MACHINE in SECTION 2 of the OPERATOR'S MANUAL. Before moving the machine to the work site, check to ensure that all doors, panels, and access covers are installed properly and secured.

Always rest the attachment on the ground when operation is stopped, regardless if the engine is running or shut off.

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

Secure loose items in the cab.

1.6

Tigercat M760 Mulcher

Safety

OPERATING SAFETY PRECAUTIONS continued

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

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

NEVER travel across a STEEP slope or side hill:

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

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

•

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

•

Serious injury or death could result from crushing.

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

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

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

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

Use only prearranged and approved signalling practices.

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

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

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

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

1.7

•

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

•

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

Tigercat M760 Mulcher

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

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

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

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

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

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

When parking the machine: •

Park on level ground.

•

Do not park on a hillside or incline.

•

Lower attachment onto level ground.

•

Engage the parking brake.

•

Stop the engine and release pilot system pressure by performing the following steps: 1. Close both doors. Turn key switch to ON position. Do not start the engine. Press pilot reset switch.

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

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

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

Use caution when loosening hydraulic connections.

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

•

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

1.8

Tigercat M760 Mulcher

Safety SWITCH

OPERATING SAFETY PRECAUTIONS continued

•

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

•

CAB EXITS

ACTUATOR

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

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

INTERLOCK SWITCH (L.H. DOOR SHOWN)

197-5

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

2. Right door, should be used for emergency exits only. Do not use this door to routinely enter or leave the cab. This door is also equipped with a SAFETY INTERLOCK SWITCH. ALWAYS shut OFF engine before using the right door exit.

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

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

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

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

ALWAYS shut OFF engine before using the escape hatch exit.

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

To operate:

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

Close both doors and press the PILOT RESET switch.

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

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

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

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

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

1.9

Tigercat M760 Mulcher OPERATING SAFETY PRECAUTIONS continued MULCHING OPERATION SAFETY Land clearing operations generally involve other machinery and people on the site. Operators must maintain an awareness of all working traffic within 500 feet of the mulching operation.

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

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

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

Replace all worn cutter tools.

Always replace the fastener whenever replacing a cutter tool.

Inspect the rotor for weld cracks and other damage.

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

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

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

Check that the cutter housing is clear and undamaged.

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

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

FRONT DANGER ZONE

• 726M-026

REAR DANGER ZONE

• DANGER ZONES

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

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

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

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

Poor maintenance increases the danger.

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

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

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

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

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

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

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

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

•

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

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

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

DO NOT operate without guards.

1.10

Tigercat M760 Mulcher OPERATING SAFETY PRECAUTIONS continued URBAN PRECAUTIONS Increased safety precautions are required when working: • • • •

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

Near buildings

Establish Safety parameters that fit the site: • • •

String coloured warning tape to cordon off the area.

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

Erect barriers.

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

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

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

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

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

CAUTION

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

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

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

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

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

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

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

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

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

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

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

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

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

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

Any time is a good time to inspect the rotor for clinging strands.

1.11

Tigercat M760 Mulcher

Safety

SERVICING SAFETY PRECAUTIONS

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

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

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

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

This machine is equipped with a reversible cooling fan to facilitate cleaning of the charge air cooler, radiator and oil cooler assembly. Exercise care when working in this area with the engine running. If the fan switch in the cab is in the AUTO position, the fan could turn ON and/or go into REVERSE mode without warning.

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

This machine is equipped with sensitive electronic control equipment, prior to welding:-

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

L.H. SIDE ACCESS PANELS

•

HAND KNOB

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

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

•

• •

M760-025

L.H. ENGINE ACCESS PANELS

1.12

Tigercat M760 Mulcher

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

SERVICING SAFETY PRECAUTIONS continued WARNING

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

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.

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

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.

Pressure can be maintained in a hydraulic system long after the power source and pump have been shut down. Lower the attachment to the ground, stop engine and relieve trapped pressure from pilot system and brake accumulators before performing work on components, or disconnecting any hoses.

For the procedure on how to RELIEVE PRESSURE, refer to PARKING THE MACHINE in THIS SECTION.

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

1.13

Tigercat M760 Mulcher

Safety

SERVICING SAFETY PRECAUTIONS continued

WARNING

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

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

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

CAUTION

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

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

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

195-24

FRAME ARTICULATION LOCK BAR

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

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

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

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

1.14

Tigercat M760 Mulcher

Safety

SERVICING SAFETY PRECAUTIONS continued

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

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

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

Dispose of fluids properly.

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

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

1.15

Tigercat M760 Mulcher

FIRE PREVENTION

When working in a forest environment, it is impossible to prevent combustible debris from collecting in tight corners of the machine. This debris, in itself, may cause a fire; however, when mixed with fuel, oil or grease in a hot or confined place, the danger of fire is greatly increased.

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

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

1. Maintain a CHARGED fire extinguisher on the machine at all times and KNOW HOW TO USE IT. 2. Inspect the machine for any signs of fuel or hydraulic system leakage and check for worn or eroded fuel or hydraulic lines before starting up any equipment.

3. 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.

4. 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.

Safety 5. Remove debris and blow out dust regularly from the air intake doors, engine radiator, hydraulic oil cooler and A/C condenser core to prevent overheating of the engine and hydraulics. Refer to CLEANING A/C CONDENSER, OIL COOLER AND RADIATOR in SECTION 2 of the OPERATOR’S MANUAL. 6. Blow off all debris and dust 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 depending on logging conditions. 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 by vibration this smoldering debris can fall into other areas of the machine and thereby spread a fire.

7. 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.

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

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

10. Steam clean the engine, transmission, brake, fuel and hydraulic tank compartments of all equipment at least once a month or more frequently depending on logging conditions.

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

1.16

Tigercat M760 Mulcher

Safety

FIRE PREVENTION continued 12. Shut down equipment immediately when a problem is suspected or smoke is detected.

•

Ensure that the nozzle of any hand held extinguishers available at the work site fits within the access holes in the doors of the machine.

•

Ensure that you have the proper fire extinguishers on site. Most fires involving mobile equipment will be of the A or B type.

You should have a dry chemical extinguisher rated ABC and a pressurized water extinguisher rated A.

•

Prevent the fire from happening by ensuring that the machine is cleaned regularly and all systems are well maintained.

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

14. Turn the battery disconnect switch to OFF at shut down to avoid loss by electrical short.

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

16. Once a fire has started on a machine hoses will quickly burn through causing pressurized fluids (diesel fuel, hydraulic oil, etc.) to fuel the fire. NEVER leave the machine parked with booms or arches suspended off the ground, as they will inject hydraulic oil into the fire if a supporting hose burns through.

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

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

19. Use only nonflammable solutions for cleaning the machine or components.

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

21. Do not use the machine on top of or to push piles of burning timber. A machine fire will 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 ELSE TO DO BEFORE YOU EXPERIENCE A FIRE •

Ensure that you are familiar with emergency procedure in the event of a fire.

•

Ensure that your fire suppression system is charged and functional.

•

Ensure that any hand held fire extinguishers are charged and functional.

•

Ensure that any stored water systems on the machine are charged and functional.

*NOTE: Dry chemical fire suppression systems are offered by Tigercat as an optional installation on some of the Tigercat product lines. Please disregard any references made to fire suppression systems if not installed on your machine.

WHAT TO DO IN CASE OF A MACHINE FIRE •

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.

•

If the machine is in a dangerous position, attempt to move to a safe position. Lower working attachment to the ground.

•

Shut the engine off.

•

Activate the fire suppression system

•

Radio or call for help (as appropriate).

•

Exit the machine taking fire extinguisher or water hose (if applicable) with you.

•

If you can safely do so, turn OFF battery disconnect switch.

•

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

•

If you can safely do so, attempt to extinguish the fire.

•

A dry chemical fire extinguisher should be used first, if available.

*

*

Continued on page 16

1.17

Tigercat M760 Mulcher

Safety •

FIRE PREVENTION continued

*

Continued from page 15

•

suppression system to remove heat build up from the area. A fire suppressed by a dry chemical powder may re-ignite with the latent heat of any debris in the area.

Use the PASS method with most extinguishers.

• •

•

•

Pull the pin. This will allow you to discharge the extinguisher.

Aim at the base of the fire. If you aim at the flames (which is frequently the temptation), the extinguishing agent will fly right through and do no good. You want to hit the fuel.

Squeeze the top handle or lever. This depresses a button that releases the pressurized extinguishing agent in the extinguisher.

Sweep from side to side until the fire is completely out. Once the fire is out, keep an eye on the area in case it re-ignites.

Use the pressurized water hose supplied with the machine (if applicable) or a pressurized water extinguisher (if available) after the discharge of a dry chemical extinguisher or

•

Remain with the machine until help arrives to ensure that the fire does not re-ignite.

•

Ensure that the machine and all components have cooled down sufficiently after a fire has occurred. Beware of the possibility of coolant or hydraulic hoses rupturing after a fire spraying hot oil or coolant which may result in severe burns.

WHAT TO DO AFTER A FIRE •

Notify your equipment dealer and or Tigercat Industries Inc. by completing an incident report, Tigercat form number 5101.

•

Ensure that the cause of the fire is determined and all appropriate repairs are completed before returning the machine to work.

•

Ensure that the fire suppression system is properly serviced and returned to a functional state (if applicable).

•

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

*

*NOTE: Dry chemical fire suppression 20229A

systems are offered by Tigercat as an optional installation on some of the Tigercat product lines. Please disregard any references made to fire suppression systems if not installed on your machine.

TYPICAL FIRE EXTINGUISHER ACCESS HOLE

•

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

•

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

1.18

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

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

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

Tigercat

5211A • R2-1101

PAGE 1 OF 16

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using high speed disc saws safely FORWARD:

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

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

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

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

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

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Safe practices It is understood and expected that logging organizations and operators will develop and practice additional rules that suit (for example) particular conditions of terrain, trees, soil and job requirements. The information given here is intended to assist towards a quicker understanding of how and why things can happen when a high speed disc saw is in use; and hence to assist in development of safe operating practices.

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

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

THE DANGERS

There are at least these means by which a rotating disc saw can cause harm by throwing: • The normal throwing of chips from the cut.

• Soil particles are thrown from the ground.

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

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

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

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

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

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

Figure 3 shows a typical commonly used saw housing plan where there is a continuous skirt around the saw except at a mouth opening where the trees are cut and taken. The skirt extends below the saw enough to intercept tangential throw. There are snouts on both sides of the mouth so that if pushed against the side of a felled tree or log the saw teeth will not contact the wood.

THROW ANGLE

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

•

•

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

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

THROW ANGLE

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

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

In figure 5 there is a much longer snout on the ingoing side of the mouth, i.e., where the teeth of the rotating blade are entering the housing. The broad side of a log, if nudged, will not contact the saw teeth and more thrown material will be intercepted by the extra length of snout.

THROW ANGLE

NUDGED LOG WILL NOT CONTACT SAW TEETH.

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

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

5

using high speed disc saws safely Housing types cont.

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

A CHIP ESCAPE PORT CAN ALLOW THROW BEHIND THE MACHINE

REAR

FRONT

FIGURE 6a

FIGURE 6b

FIGURE 6c

FIGURE 6: ADDITIONAL OPENING IN THE HOUSING SKIRT.

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

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

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

6

using high speed disc saws safely COMMENTS AND INSTRUCTIONS

Tigercat

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

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

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

Throw distance The throw distance for metal pieces and stones, can be many times the distance shown by the pattern for chips. More testing and data collection is needed to pin down a “safe distance” but if someone or something is in a place that can be seen by the operator and in the throw direction of a high speed disc saw, then the operation is not safe regardless of the distance.

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

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

7

using high speed disc saws safely Comments and Instructions cont.

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

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

With these high mechanical freedom arrangements there is a chance that an unforeseeable operator misadventure or equipment failure could result in an accidental direct or deflected throw at the operators cab, refer to figure 2 and 7b. The cab should be capable of resisting such accidental and ricochet throws. The velocity energy of metal or rock pieces leaving the blade is extremely high. The operators cab cannot be considered safe to routinely operate in the chip throw area, even if it has been especially constructed to prevent penetration by accidentally thrown objects.

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using high speed disc saws safely

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

FIGURE 7a

PLAN VIEW OF MACHINE SHOWING CLOCKWISE AND COUNTERCLOCKWISE BLADE ROTATION

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

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

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using high speed disc saws safely Comments and Instructions cont.

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Throwing long wood pieces Dangers from throws of long wood pieces are illustrated in figures 8 to 11. Tests and experience have shown that when a high speed rotating saw is applied to a loose piece of wood, the wood is either blown or pushed away, without a throw. If the wood is held firmly in all directions and the saw advanced into it at any feed speed, cutting will take place. If the wood is only held against escape from the saw radially, but not held tangentially, then the wood will be both partly cut and partly moved tangentially. In this last case tests have shown that if the piece of wood is backed-up by a solid slippery surface; and if the feed in is very fast; and if the piece of wood is long enough; then the tangential movement is a dangerous spear-like throw.

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

SLAB

•

SLAB

• FE

ED

IN

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

TH DIR ROW EC TIO N

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

FIGURE 8

THROW ENGAGEMENT DISTANCE FELLING HEAD MOVING INTO SLAB/LOG

®

SLAB

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

• •

FIGURE 8b SIDE VIEW

FEED IN

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

10

FIGURE 8c TOP VIEW

using high speed disc saws safely Comments and Instructions cont.

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Figures 8 and 9 show two ways that this might happen in the woods if using the saw head of figure 4 (where the throw contact can be long). A slab, still partly attached to a well backed-up tree bole and wet with sap, makes an ideally bad throw situation which could unintentionally occur in woods work. A small log in a pile of other logs might also be propelled out with enough length of continued contact to reach near saw tip speed.

A SMALL LOG IN A PILE OF OTHER LOGS MIGHT ALSO BE PROPELLED OUT WITH ENOUGH LENGTH OF CONTINUED CONTACT WITH THE BLADE TO REACH NEAR SAW TIP SPEED.

• FE

ED

IN

FELLING HEAD MOVING INTO LOG PILE

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

SMALL LOG

THROW ENGAGEMENT DISTANCE LOG PILE

FEED IN

•

•

A SAW HOUSING WITHOUT SNOUTS ALLOWS A LONG THROW ENGAGEMENT DISTANCE

FIGURE 9b SIDE VIEW

FIGURE 9c TOP VIEW

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

FEED IN

11

using high speed disc saws safely Comments and Instructions cont.

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Figure 10 shows how a head with snouts does not allow a long throw contact. Although tests show that a short contact length on a long log or tree butt does not result in a spear like throw, this action should nevertheless be avoided because abnormally large chips are sometimes produced and thrown.

UNCUT TREE OR STUMP BACKUP THROW ENGAGEMENT DISTANCE

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

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

FELLING HEAD MOVING INTO LOG

Figure 11 warns that blocks of wood can be tossed in any direction when improvising with a disc saw to trim over-size stumps. A long snout and a slow feed speed lessen danger during stump trimming.

A similar danger of throw may exist when clearing small brush with multiple pass cuts.

FELLING HEAD MOVING INTO STUMP (FEED SPEED)

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

12

using high speed disc saws safely Comments and Instructions cont.

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Saw blade throw gap Saw blades have gaps between adjacent teeth and holders to permit installation and removal of the teeth and to provide spaces to accumulate chips in the cut, see figure 12. Fallen sticks and debris or sticks and debris sliding across the the saw blade can enter these gaps when the blade is rotating and be struck by the teeth and be tossed or thrown. Larger gaps and lower rotation speeds increase these dangers.

THROW GAP

FIGURE 12: SAW BLADE THROW GAP

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using high speed disc saws safely Comments and Instructions cont.

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Saw housing entrance and exit space To avoid the ingestion of materials into the housing space above the disc (and later ejection) the ingoing entrance for the saw rim of teeth is kept as small as practical. It is important that this high wear area be maintained at its original size and shape. The outgoing opening is large enough to allow the housing to clean itself and will allow most things inside to be thrown out, see figure 13. Its throw direction and angle must be respected. A long snout on the other side reduces this danger.

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

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

FIGURE 13: SAW BLADE ENTRANCE AND EXIT SPACE

14

using high speed disc saws safely Comments and Instructions cont.

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

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

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

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

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

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

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

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

Do not over speed the blade rpm.

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

Do not neglect tooth fastening inspection, maintenance and replacement.

Do not neglect to repair worn or damaged saw housings.

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

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

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

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

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

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

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

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

Do not select and operate heads that throw rearward.

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

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

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using high speed disc saws safely

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Tigercat M760 Mulcher SECTION 2 - CONTROLS AND OPERATION CONTENTS - SECTION 2

DECEMBER 2006

AIR COMPRESSOR ............................................. 2.6 AIR CONDITIONER/HEATER ................................ 2.9 AIR SUPPLY CONNECTOR ................................. 2.6 AIR VENTS ........................................................... 2.9 ARTICULATION LOCK BAR ................................ 2.32 ATTACHMENT TILT .............................................. 2.2 AUXILIARY POWER ........................................... 2.16

HORN ................................................................. 2.17 HYDRAULIC FILTER BYPASS ........................... 2.12 HYDRAULIC HAND FILL PUMP ......................... 2.23 HYDRAULIC OIL RESERVOIR ........................... 2.22

BATTERY DISCONNECT - SWITCH ................... 2.22 BOOM LIFT .......................................................... 2.2 BRAKE FOOT PEDAL .......................................... 2.3

JOYSTICK, LEFT .................................................. 2.2 JOYSTICK, RIGHT ................................................ 2.2

CARE OF THE MACHINE ................................... 2.31 CONTROL POD ON ARMREST, R.H. CONTROLS - CAB ................................................ 2.2 CONTROLS AND INSTRUMENTS ...................... 2.36 CUTTER .............................................................. 2.16 CUTTER CIRCUIT PRESSURE - GAUGE ........... 2.17 DIFFERENTIAL LOCK, (FRONT) SWITCH ............ 2.2 DIFFERENTIAL LOCK, (REAR) SWITCH ............ 2.14 DISPLAY DIAGNOSTIC – GREEN LIGHT ........... 2.12 DISPLAY SCROLL ............................................. 2.13 DISPLAY WARNING – RED LIGHT .................... 2.12 EMERGENCY EXIT/SKYLIGHT ............................ 2.6 EMS ................................................................... 2.13 ENGINE AIR CLEANER ...................................... 2.25 ENGINE AIR PRECLEANER .............................. 2.24 ENGINE COMPARTMENT .................................. 2.22 ENGINE, HOT WATER SHUT OFF VALVE ........ 2.11 ENGINE MONITORING SYSTEM (EMS) ............ 2.13 ENGINE RPM ....................................................... 2.4 ENGINE, STARTING ........................................... 2.28 ENGINE, STARTING, COLD WEATHER CUMMINS QSL9 ............................................. 2.28 ENGINE, STARTING IN COLD WEATHER ......... 2.28 ENGINE, STOPPING .......................................... 2.30 FAN SWITCH ..................................................... 2.14 FILTER - CAB FRESH AIR ................................. 2.10 FILTER, RECIRCULATING AIR - A/C UNIT ........... 2.9 FIRE SUPPRESSION SYSTEM OPERATION ................................................... 2.18 FOOT PEDAL BRAKE ..............................................................2.3 FORWARD TRAVEL SPEED .............................2.3 REVERSE TRAVEL SPEED ............................ 2.3 FOOT REST ......................................................... 2.3 FUEL TANK ........................................................ 2.22 FUSE AND RELAY COMPARTMENT ................ 2.35

IGNITION ............................................................ 2.15 INSTRUMENT PANEL ........................................ 2.12

LIFT BOOM CYLINDER LOCK ............................ 2.34 LIGHT - DOME ...................................................... 2.6 LIGHTER ............................................................. 2.16 LOW HYDRAULIC OIL LEVEL, RED LIGHT ....... 2.12 MACHINE PREPARATION ................................. 2.29 MULCH DEFLECTOR DOOR ................................ 2.2 OPERATING MACHINE ...................................... 2.26 PARKING BRAKE ................................................ 2.5 PILOT RESET ..................................................... 2.17 PILOT SYSTEM SHUT OFF ............................... 2.17 PRE-START CHECKS ........................................ 2.26 PRESSURE GAUGE, CUTTER CIRCUIT ............ 2.17 PRESSURIZED WATER SYSTEM ....................... 2.5 RADIO, AM/FM STEREO CASSETTE .................. 2.6 SEAT .................................................................... 2.7 SKYLIGHT/EMERGENCY EXIT ............................ 2.6 SPEED CONTROL LEVER ................................... 2.4 STARTING ENGINE ............................................ 2.28 STEERING ........................................................... 2.2 STEERING WHEEL .............................................. 2.3 STEREO CASSETTE/RADIO ................................ 2.6 STOPPING ENGINE ........................................... 2.30 SYSTEM TEST AND WARM-UP ........................ 2.29 THROTTLE CONTROL .......................................... 2.4 TILT STEERING COLUMN .................................... 2.3 TOWING INSTRUCTIONS ................................... 2.32 TRANSPORTING INSTRUCTIONS ............ 2.32, 2.33 WATER SYSTEM, PRESSURIZED ..................... 2.5

Tigercat M760 Mulcher

Controls and Operation IMPORTANT

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

CONTROLS - CAB 2

1

••

••

M760-001 M760-002 760M-27

LEFT JOYSTICK

1. STEERING JOYSTICK - LEFT

760M-27

RIGHT JOYSTICK

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

Steering Move the joystick to the RIGHT to turn the machine to the RIGHT.

Move the joystick FORWARD to LOWER the boom.

Move the joystick to the LEFT to turn the machine to the LEFT.

Attachment tilt Move the joystick to the RIGHT to tilt the attachment OUT.

The steering "speed" can be controlled by the amount the joystick is moved to the right or left. A small movement of the joystick will turn the machine slowly and a large movement of the joystick will cause the machine to turn very rapidly. The steering joystick does not move forward or back.

Move the joystick to the LEFT to tilt the attachment IN. Thumb Switch - Mulch Door Push the rocker switch to the LEFT to OPEN the mulch deflector door.

Thumb Switch - Differential Lock, Front Push and hold this thumb switch to the left or right to LOCK the FRONT differential and provide driving torque to BOTH front wheels.

Push the rocker switch to the RIGHT to CLOSE the mulch deflector door.

Note: For machines equipped with the optional steering wheel the front differential lock switch is located on the instrument panel. Refer also to DIFFERENTIAL LOCK, (FRONT) SWITCH and DIFFERENTIAL LOCK, (REAR) SWITCH in THIS SECTION.

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

2.2

Tigercat M760 Mulcher 5

4

•

Controls and Operation 3A

3B

•

•

•

• 5B 5A M760-015

•

FOOT PEDALS

3A. FORWARD TRAVEL SPEED FOOT PEDAL Depress the foot pedal to control the forward travel speed from fully stopped to the fastest travel speed.

STEERING WHEEL STEERING WHEEL - OPTIONAL

M760-034

5A.

When the machine is equipped with Optional Steering Wheel the steering function is Variable Ratio Load Sensing Steering. The speed that the machine 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 produced by a rapid movement of the steering wheel, which will quickly change the machines direction.

3B. REVERSE TRAVEL SPEED FOOT PEDAL Depress the foot pedal to control the reverse travel speed from fully stopped to the fastest travel speed.

4. BRAKE FOOT PEDAL Depress the foot pedal to apply the rear axle brakes when rapid braking is required.

Under normal operating conditions the machine will brake automatically.

NOTE: There are three braking systems on this machine;

CAUTION

(a) The rear axle brake actuated by the foot pedal (4).

The steering system is always LIVE when engine is running. DO NOT use the steering wheel to assist entering or leaving the cab.

(b) The hydrostatic braking system which is part of the drive system and works when the travel speed foot pedal is released.

5B. TILT STEERING COLUMN

(c) The Parking Brake which operates ONE of TWO disc brake calipers on the transmission. The second disc brake caliper is required for setting up the hydraulic system.

Push handle down to release tilt lock, move steering wheel to desired position. Release handle to lock steering column in place.

NOTE: As a safety precaution before working on or around the machine; After the engine has been shut off, depress this pedal 30 - 40 times to relieve any pressure that may be stored in the hydraulic pilot brake accumulator system .

5. FOOT REST

2.3

Tigercat M760 Mulcher

Controls and Operation 7 6

• •

M760-06

THROTTLE CONTROL

6. THROTTLE CONTROL For HIGH IDLE engine RPM push button on end of throttle control and PULL out completely.

For LOW IDLE engine RPM push button in and PUSH in throttle control completely.

M724D-02

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

SPEED CONTROL LEVER

7. SPEED CONTROL LEVER

Maintaining Correct Engine RPM.

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

It is most important that the RPM of the engine be correct at all times: Low Idle 700 +/- 25 RPM (No Load) High Idle 2100 +/- 25 RPM (No Load)

Push the lever forward to increase the maximum speed.

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

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

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

Creep mode may be advantageous for moving at slow speeds for pull working, fine mulching and finishing work with the mulching head.

When setting pressures, increase Low Idle to 1200 RPM with throttle control.

This lever's position can be varied while the machine is in motion.

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

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

2.4

Tigercat M760 Mulcher

Controls and Operation HOSE

WATER SHUT OFF VALVE (SHOWN CLOSED)

9

• •

•

•

•

PROXIMITY SENSOR

196-16A

8

PRESSURIZED WATER SYSTEM CONTROL VALVE (UNDER SEAT)

9. VALVE - Pressurized Water System 337-19

Turn the hand operated ball valve (shut off valve) under the seat to the ON position to draw water from the 10.5 USgallon (39.7 liter) pressurized holding tank at the rear of the machine. When not in use turn the water supply OFF at this valve and relieve the pressure in the rubber hose, under the operator's seat.

PARKING BRAKE DISENGAGED POSITION

AIR CHARGE VALVE

•

8

• 337-20

•

PARKING BRAKE ENGAGED POSITION PRESSURE GAUGE

8. PARKING BRAKE PULL up on handle to ENGAGE parking brake.

196-9A

PRESSURIZED WATER SYSTEM

The pressure gauge on the side of the seat should read 60 psi.

PUSH down on the handle to DISENGAGE parking brake.

Refer to PRESSURIZED WATER SYSTEM MAINTENANCE in SECTION 3 of THIS MANUAL. Refer also to FIRE PREVENTION in SECTION 1 of THIS MANUAL.

This parking brake operates ONE of TWO disc brake calipers on the transmission. The second caliper is used only when setting up the machine hydraulic system.

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

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

Keep the brake properly adjusted at all times.

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

2.5

Tigercat M760 Mulcher

Controls and Operation 10

11

12

•

•

•

197-7X

10. LIGHT - DOME

AIR COMPRESSOR

M760-09

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

13. AIR COMPRESSOR - AIR SUPPLY An air compressor, air tank and air supply connector are provided as an air tool supply.

11. SKYLIGHT/EMERGENCY EXIT Provides tree top visibility and serves as a third cab exit should the two doors become blocked. There are two retaining handles on the inside and two on the outside to allow removal of the hatch from either side. These handles should only be HAND TIGHTENED, to allow them to be unscrewed in case of an emergency.

The air compressor which operates this system is located in the engine compartment.

The air tank and air dryer are located in the rear chassis below the engine.

AIR SUPPLY CONNECTOR

12. AM/FM STEREO CD PLAYER

•

With two front mounted speakers.

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

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 30psi or less.

Always use personal protective equipment to guard against flying debris M760-010

AIR SUPPLY CONNECTOR

An air supply connector for auxiliary use is located in the battery compartment above the battery disconnect switch.

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.

2.6

Tigercat M760 Mulcher

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

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

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

•

RIDE ADJUSTMENT KNOB

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

• •

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

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.

• • •

HEIGHT ADJUSTMENT LEVER

FORE/AFT SLIDE LEVER 332-1

BACK ANGLE ADJUSTMENT KNOB

4-WAY LUMBAR HORIZONTAL ADJUSTMENT

SEAT ADJUSTMENTS

14. SEAT •

WARNING

•

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

•

ADJUSTMENTS •

HEIGHT ADJUSTMENT The spring-assisted height adjustment is controlled by the HEIGHT ADJUSTMENT LEVER located on the front left side of the seat chassis. The four height settings: top, bottom and two in between, provide a total height adjustment of 3”.

332-6

To Raise Firmly lift up on the HEIGHT ADJUSTMENT LEVER. When the lever releases, hold it up while partially lifting the operator’s body weight from the seat. When the seat is at the desired height, firmly push down on the lever until the seat locks (a click should be heard).

To Lower Firmly lift up on the HEIGHT ADJUSTMENT LEVER. When the lever releases, partially apply operator body weight to the seat until the seat is at the desired height. firmly push down on the lever.

Hold lever down until the seat locks into position (a click should be heard).

2.7

RIGHT SIDE OF SEAT

ARMREST ADJUSTMENT

Tigercat M760 Mulcher PROBLEMS AND CORRECTIVE ACTION

Controls and Operation

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 VERTICAL ADJUSTMENT 4-WAY LUMBAR HORIZONTAL ADJUSTMENT

•

RIDE ADJUSTMENT KNOB

RIDES TOO SOFT OR BOTTOMS OUT AND PINCHES OPERATOR The seat RIDE ADJUSTMENT KNOB has not been tightened (turned counter-clockwise) enough. Insufficient ride adjustment exaggerates the knee-action movement of the seat. This usually happens because the operator is trying to lower the seat by decreasing the amount of ride adjustment instead of using the HEIGHT ADJUSTMENT LEVER. Refer to HEIGHT ADJUSTMENT.

• •

• •

SEAT TOO HIGH/SEAT TOO LOW There are several things which can cause improper seat height. Refer to the HEIGHT ADJUSTMENT and adjust seat to the desired position. If the proper height cannot be reached using one of the four height adjustment settings, it may be necessary to install the seat on a higher base.

• FORE/AFT SLIDE LEVER 332-1

OPERATOR’S LEGS FALLING ASLEEP The seat is adjusted too high, and the RIDE ADJUSTMENT KNOB has not been tightened (turned counter-clockwise) enough, resulting in the operator sitting in a “bucket”. Refer to HEIGHT ADJUSTMENT and RIDE ADJUSTMENT.

2.8

BACK ANGLE ADJUSTMENT KNOB HEIGHT ADJUSTMENT LEVER

SEAT ADJUSTMENTS

Tigercat M760 Mulcher C

A

B

•

Controls and Operation

•

D

••

•

16

•

E

•

16

•

• AIR CONDITIONER HEATER CONTROLS 15. AIR CONDITIONER/HEATER

•

7501-8A

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

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

•• 17

16

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

••

M760-016

C. AIR SOURCE - 2 POSITION This is a rotary, two position switch to select either, outside fresh air or to recirculate inside air.

AIR VENTS AND RE-CIRCULATING AIR FILTER

16. AIR VENTS The Air Conditioner/Heater package has seven air outlets in the cab.

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

17

•

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

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

208-19

AIR FILTER

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

IMPORTANT It is recommended that during cold weather when the A/C system is not in use, that it be run for a period of 5 minutes every 2 weeks. This will circulate oil to all components of the A/C system.

2.9

Tigercat M760 Mulcher

Controls and Operation CHECKING THE AIR CONDITIONING SYSTEM The A/C compressor is accessible from the left side engine compartment. The receiver dryer and A/C condensor core are accessible on the right side of the machine in the heat exchanger area.

The evaporator core is accessible on the right hand side of the machine just inside the cab door.

•

18

a. Check and adjust compressor drive belt tension. b. Check air intake filters and clean as required. Refer to Items (20) and (21).

157-19A

c. Check the condenser core for dirt and debris. Clean as required.

FRESH AIR FILTER

d. Check the evaporator core and the inside of the A/C housing for dirt and debris.

Clean as required.

18. FILTER - CAB FRESH AIR When the AIR SOURCE control knob (C) on the A/C Heater control panel is in the FRESH AIR position, outside air is drawn into the cab A/C Heater unit through this filter and mixed with interior air from the cab. The filter is located in the rear of the cab roof and accessible from outside the cab. It should be checked every 125 hours. This is done by removing 6 bolts and removing the air inlet cover. Next remove 2 bolts and remove the filter retainer. This will allow access to the filter.

e. Run air conditioning system for 3 - 5 minutes,

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

• Always use personal protective equipment to guard against flying debris. f. Check to see that compressor clutch will engage.

IMPORTANT

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.

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

CAUTION

CHECK A/C CONDENSER CORE

• If using compressed air for cleaning, use at 30 psi or less.

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

RECEIVER/ DRYER

•

•

7501-14A

2.10

CHECK A/C CONDENSER CORE

Tigercat M760 Mulcher ENGINE

Controls and Operation SHUT-OFF VALVE

19

• •

HOSE TO A/C HEATER UNIT

•

7501-19A

HOT WATER SHUT OFF VALVE

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

2.11

Tigercat M760 Mulcher

Controls and Operation 1

2

3

4

5

6

7

8

9

11 12

10

13

14 15

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17 18 19

20

7501-7A

INSTRUMENT PANEL

INSTRUMENT PANEL 1. HYDRAULIC FILTER BYPASS - red light

3. DISPLAY WARNING – red light

This light is activated when any of the hydraulic oil filters are bypassed.

This light is activated by the ECM when any monitored engine parameter exceeds a preset limit. See CAT engine manual for further information.

Cold weather may cause this light to activate during machine startup, refer to Cold Weather Startup Procedure in this section.

4. DISPLAY DIAGNOSTIC – green light

Under normal conditions if this light is activated, Do not continue to operate the machine.

This light flashes diagnostic code from the ECM. See CAT engine manual for further information.

2. LOW HYDRAULIC OIL LEVEL – red light This light is activated when the level of oil in the hydraulic oil reservoir reaches an unacceptably low level.

Do not operate the machine with a low hydraulic oil level. Check for sources of oil loss. Correct oil leak and then refill the reservoir to the proper level if this occurs.

2.12

Tigercat M760 Mulcher

7503-1A

Controls and Operation

ENGINE MONITORING SYSTEM

5. ENGINE MONITORING SYSTEM (EMS) The EMS displays various engine parameters.

The Engine Control Module (ECM) positioned on the side of the diesel engine monitors and processes engine operating parameters and diagnostic information. This information is then transmitted to the EMS. The EMS has ten (two rows of five) indicators to display system related diagnostics. A digital LCD readout displays the engine/ auxiliary parameters monitored. If one of the monitored engine parameters exceeds a preset limit, the indicator light will come ON. See CAT engine manual for further information.

6. DISPLAY SCROLL

ABBREVIATION

PARAMETER

SPD

ENGINE SPEED

GA-1

ENGINE OIL PRESSURE

GA-2

COOLANT TEMPERATURE

GA-3

BATTERY VOLTAGE

GA-4

FUEL PRESSURE

BOOST

BOOST PRESSURE

IAIRT

INLET AIR TEMPERATURE

FUELT

FUEL TEMPERATURE

ACCRP

NOT USED

ACCRT

HYDRAULIC OIL TEMPERATURE

FUEL

FUEL RATE

HRS

ENGINE HOURS

LOAD

PERCENT OF ENGINE LOAD

EMSCHART.EPS

This is a three position switch. Press and hold until the desired abbreviation is displayed on the LCD Digital Display on EMS monitor and then release to display the desired parameter.

The display can be scrolled either forward or in reverse sequence.

2.13

Tigercat M760 Mulcher

Controls and Operation 1

2

3

4

5

6

7

8

9

11 12

10

13

14 15

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•

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•

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•

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21

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17 18 19

20

INSTRUMENT PANEL The electronic fan control will also turn the 7. DIFFERENTIAL LOCK, FRONT A/C system OFF for as long as the fan switch This is a two position switch with a GREEN is in the CLEAN position. The amount of time light. that the switch is held in the CLEAN position Place this switch in the ON position to LOCK need not be more than 20 - 30 seconds. the FRONT differential and provide driving It is also important to manually clean debris torque to BOTH front wheels. The light in the from the machine on a regular basis to switch will stay ON when the front differentials maintain low machine operating are locked. Place this switch in the OFF temperatures. Refer to CLEANING A/C position to UNLOCK the front differential.

CONDENSER, CHARGE AIR COOLER, OIL 8. DIFFERENTIAL LOCK, REAR COOLER AND RADIATOR in THIS SECTION. This is a two position switch with a GREEN light.

10. FAN - SWITCH 7501-7A

Place this switch in the ON position to LOCK the REAR differential and provide driving torque to BOTH rear wheels. The light in the switch will stay ON when the rear differentials are locked. Place this switch in the OFF position to UNLOCK the rear differential.

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

AUTO POSITION - AUTO is the normal operating position for the fan control switch.

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

9. FAN - SWITCH This is a two position switch, labelled CLEAN. When the switch is depressed, the direction of rotation is reversed. Reverse rotation is used to clean the charge air cooler, radiator, oil cooler, A/C condenser and air intake door screens. By "reversing" the flow of the fan, air flow is propelled in the opposite direction, thereby forcing dust and debris off of the radiator.

2.14

Tigercat M760 Mulcher

Controls and Operation 1

2

3

4

6

5

7

8

9

11

10

12

13

14 15

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•

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•• ••

7501-7A

•

••

•

21

•

•

• • 16

• ••

17 18 19

20

INSTRUMENT PANEL

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

When the switch is in the AUTO position, the fan will operate at 25% of its maximum speed when engine coolant or hydraulic oil temperatures are low.

FULL ON (OVERRIDE) POSITION - When the switch is in the FULL ON (OVERRIDE) position, the fan control system is overridden and the fan will run at FULL speed for cooling regardless of coolant, air or oil temperatures.

Normally the fan control switch is placed in the AUTO position for optimal cooling. The FULL ON (OVERRIDE) position is intended for use in the event of a temporary failure of the fan control.

11. IGNITION This is a three-position switch labelled OFF/ RUN/START.

The fan auto reversing function is factory set to cycle every 30 minutes. The cycle interval has a variable adjustment with an operating range between 10 to 60 minutes. An adjustable potentiometer located in the fuse an relay compartment behind the seat, is used to set the auto reversing cycle time interval. Turn the adjustment screw counterclockwise to increase time interval or clockwise to decrease time interval. Refer to FUSE AND RELAY COMPARTMENT in THIS SECTION.

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.

START Position - Used to energize the starter motor to start the engine.

NOTE: The parking brake must be in the ENGAGED position to start the engine.

2.15

Tigercat M760 Mulcher

Controls and Operation 1

2

3

4

5

6

7

8

9

11 12

10

13

14 15

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•• 21

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17 18 19

20

INSTRUMENT PANEL

7501-7A

12. CUTTER - FORWARD/OFF/REVERSE

13. CUTTER - REVERSE JOG

This is a three position switch labelled FORWARD, OFF, REVERSE.

This is a three position switch labelled OFF JOG REVERSE.

FORWARD - Place throttle at HIGH IDLE before turning the cutter ON for normal operations. Cutter drum rotates at FULL speed in the FORWARD direction.

This switch is used in conjunction with the CUTTER switch for turning or indexing the cutter drum slowly for inspection and alignment during drum replacement.

OFF - Cutter drum is turned off.

Before using this switch, place the throttle at LOW IDLE. Place the CUTTER switch in the JOG position. Press and hold the JOG switch, the cutter drum rotates at slow speed in REVERSE direction. Release the JOG switch to stop the drum rotation.

REVERSE - Place throttle at HIGH IDLE before turning the cutter ON. Cutter drum rotates at FULL speed in the REVERSE direction.

NOTE: If the engine is turned off with the cutter switch in the ON position, the cutter will not start up again when the engine is restarted. The cutter switch must be turned OFF and then back ON for the cutter to start.

WARNING When leaving the cab to check the cutter drum or other parts of the cutter head, observe all safety rules listed in this manual.

14. LIGHTER

CAUTION

Cigar/cigarette lighter.

Serious component damage may result: • Never stop engine with cutter rotating.

• Always stop cutter with engine at idle.

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

16. FUEL HEATER - (OPTIONAL) This switch activates the fuel heater 2.16

Tigercat M760 Mulcher

Controls and Operation

17. PILOT RESET This is a two position switch and is used to reactivate the pilot system after it has been deactivated by opening either of the cab doors, or by turning the ignition switch to the OFF position. This system prevents accidental or improper use of the controls from anywhere but the operator's seat.

With the engine running and both doors closed, press and then release this switch to REACTIVATE the pilot system.

17A

••

•

ACTUATOR

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

It is important not to stop or stall the engine with the mulching head cutter rotating.

Serious component damage may result.

Always stop the cutter with the engine at idle.

19. HORN This is a two position switch. Press and hold to sound vehicle warning horns.

20. DRIVING LIGHTS (OPTIONAL) This is a two position switch. Use to turn ON the optional driving lights.

21. WORKING LIGHTS (OPTIONAL) This is a two position switch. Use to turn ON the 5 working lights (3 front, 2 rear, mounted on top of the cab.

197-5

PILOT SYSTEM SHUT OFF

17A. PILOT SYSTEM SHUT OFF

22

Both doors are equipped with interlock switches to prevent the machine from being operated while the doors are open (pilot system shut off).

•

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

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

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

PRESSURE GAUGE 213-24 22. CUTTER CIRCUIT PRESSURE - GAUGE This gauge is visible outside the lower right corner of the front window.

When the cutter switch is put into the ON position, (engine at HIGH IDLE) the gauge will show the hydraulic pressure required to rotate the cutter drum. When not working this pressure should be approximately 1200 psi.

The machine should be operated to achieve a constant working pressure of 4000 psi.

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

18. DRIVE LIMITER - TRAVEL SPEED This is a two position switch. This switch has no effect when the cutter switch is in the OFF position.

Reposition the Direction / Speed Lever to change the machines slow working speed as required to maintain this pressure reading on the gauge at or near 4000 psi.

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

During cutting operations the operator will see the gauge values rise as the load on the drum is increased and fall as the load is decreased.

When the load exceeds 4800 psi the drum will stall.

2.17

Tigercat M760 Mulcher FIRE SUPPRESSION SYSTEM - OPTIONAL When equipped with optional fire suppression system, the machine leaves the factory with the AMEREX fire suppression system deactivated.

Controls and Operation AUTOMATIC OPERATION (ELECTRIC) The Fire Suppression System is activated Automatically by the Fire Detection System consisting of the following:

NOTE: A pre-delivery inspection and certification of the fire suppression system, performed by a local AMEREX approved dealer, must be carried out to ensure the system is fully operational. This involves performing all daily and weekly inspection steps.

Refer to INSPECTION OF THE FIRE SUPPRESSION SYSTEM AND PORTABLE EXTINGUISHERS in THIS SECTION.

•

Pneumatic Tubing (routed from an air supply cylinder in the cab, back to the engine and hydraulic compartment).

•

A 70 psi air supply cylinder (mounted in the cab behind the seat).

•

A Signal Switch (mounted on the air supply cylinder).

Read the AMEREX OWNERS MANUAL APPLICABLE TO THE SYSTEM INSTALLED on this machine for additional information on operation, service and warranty requirements.

•

An Electrical Harness (connected from the signal switch on the air supply cylinder to the fire suppression control panel mounted in front of the operator).

CONTROL PANEL

ALARM LIGHT

•

••

M760-088

•• •

•• "PUSH TO TEST" BUTTON

AUDIO ALARM

SIGNAL SWITCH

•• FIRE BUTTON

•

PNEUMATIC TUBING

•• ••

CHARGE GAUGE

70 PSI AIR SUPPLY CYLINDER

••

LOCKING PIN

SYSTEM CONTROL PANEL, AUDIO ALARM & LIGHT

M760-083

The fire suppression system installed on this machine uses a dry chemical powder which is stored in two 25 lb. pressurized agent cylinders.

Each agent cylinder is discharged through 4 nozzles (total of 8 nozzles) strategically placed in the engine compartment and hydraulic areas.

The discharge is triggered in three ways; •

Automatically by the fire detection system

•

Manually by the operator with the fire button on the control panel.

•

Manually by the operator with the Nitrogen Actuator fire button located on the left side of the seat pedestal.

The control panel in the cab provides continuous monitoring of the fire detection system. It also, automatically actuates the suppression system when signalled by the fire detection system.

2.18

PNEUMATIC FIRE DETECTION SYTEM The pneumatic tubing is a heat detection device.

When the temperature in the engine or hydraulic compartment reaches 224°C (435°F), the pneumatic tubing melts and releases the 70 psi pressure.

The loss of pressure at the air supply cylinder in the cab causes the signal switch on the cylinder to close. When the signal switch closes it sends an electrical signal to the control panel activating the fire suppression system.

At the same time the control panel will also automatically shut down the engine and all electrical power.

Tigercat M760 Mulcher

Controls and Operation DISCHARGE OF THE SYSTEM When an electrical signal (automatic or manual) is received by the control panel it sends a discharge signal to the actuators located on the pressurized cylinders.

MANUAL OPERATION (ELECTRIC) The fire suppression system can also be activated manually using the manual actuation fire button switch mounted on the panel.

PRESSURIZED CYLINDER

INDICATOR GAUGE

••

LOCKING PIN

•

••

•

FIRE BUTTON M760-088

ELECTRIC PNEUMATIC ACTUATOR

SYSTEM CONTROL PANEL

••

To manually operate the system: M760-085

1. Pull locking pin.

ELECTRIC/PNEUMATIC ACTUATOR

2. Press red FIRE BUTTON (manual actuation switch).

When activated the actuator extends a control shaft which mechanically opens the agent cylinder valve.

An electrical signal is sent to the control panel from the FIRE BUTTON (manual actuation switch) activating the fire suppression system.

This releases the dry chemical from both cylinders to the discharge area protected by the system.

At the same time the control panel will also automatically shut down the engine and all electrical power.

LEFT SIDE OF ENGINE COMPARTMENT

MANUAL OPERATION (NITROGEN ACTUATOR) In the event of a power failure the system can be Activated Manually by the Nitrogen Actuator located on the left side of the seat pedestal .

NITROGEN CYLINDER

•

M760-082

•

••

ONE OF EIGHT FIRE SUPPRESSION NOZZLES

•• ••

BETWEEN CAB AND COOLER PACKAGE

LOCKING PIN M760-084

••

FIRE BUTTON

NITROGEN ACTUATOR

CHARGE GAUGE

•

FIRE SUPPRESSION NOZZLE

••

NITROGEN ACTUATOR

FIRE SUPPRESSION NOZZLE

To manually operate the system: 1. Pull locking pin.

2. Press red FIRE BUTTON (actuation switch).

A nitrogen charge is directed to the Electric/ Pneumatic Actuators on the pressurized agent cylinders activating the fire suppression system.

NOTE: The engine is not shut down automatically when using the Nitrogen Actuator to manually activate the Fire Suppression System. If you can safely do so, Shut the engine off manually using the key switch.

M760-092

ONE OF EIGHT FIRE SUPPRESSION NOZZLES

At the same time the control panel will also automatically shut down the engine and all electrical power.

2.19

Tigercat M760 Mulcher

Controls and Operation

CYLINDER COMPARTMENT The two 25 lb. pressurized agent cylinders are located in the cylinder compartment behind the cab. The compartment has two doors (one on each side) to access the cylinders.

IN CASE OF FIRE: If a fire starts in any space protected by the system, DO NOT wait for the system to operate automatically. Operate the system manually:

LEFT SIDE PRESSURIZED CYLINDER

••

••

LOCKING PIN

•

CHARGE GAUGE

••

"PUSH TO TEST" BUTTON M760-088

M760-086

FIRE BUTTON

SYSTEM CONTROL PANEL

1.

2.

3.

4.

Stop Machine.

Shut Engine OFF. Pull locking pin.

Push red FIRE BUTTON (manual actuation switch).

The system will activate the discharge system and there will be a cloud of dry chemical dispersed in the discharge area.

CYLINDER COMPARTMENT

DOOR LATCH

••

••

••

At the same time the control panel will also automatically shut down all electrical power.

M760-089

Get away from the machine. Take a portable fire extinguisher along if possible or obtain one from another location.

RIGHT SIDE PRESSURIZED CYLINDER

••

CHARGE GAUGE

PORTABLE FIRE EXTINGUISHER

•

CHARGE GAUGE

• ••

M760-087

Pull on the door latch handle to open the doors to inspect the cylinders. Each of the cylinders is equipped with a charge gauge.

The charge gauge on both cylinders should be checked daily to ensure they are fully charged.

726D 053

Stand by with a portable fire extinguisher, watch for flashbacks after system has discharged.

CHARGE GAUGE

••

M760-090

PORTABLE FIRE EXTINGUISHER CHECK CHARGE GAUGE DAILY

Do not restart the machine until it has been serviced and cleaned. Do not return the machine to service until the source of the fire has been located, neutralized and all mechanical, electrical and hydraulic components are repaired and any damaged components are replaced.

THE FIRE SUPPRESSION SYSTEM MUST BE RECHARGED AND REACTIVATED BY AMEREX FACTORY CERTIFIED PERSONNEL BEFORE RETURNING THE MACHINE TO SERVICE!

CYLINDER CHARGE GAUGE

2.20

Tigercat M760 Mulcher

Controls and Operation

Before cleaning up after a discharge, read the AMEREX FIRE SUPPRESSION SYSTEM manual.

INSPECTION OF THE FIRE SUPPRESSION SYSTEM AND PORTABLE EXTINGUISHERS:

•

PNEUMATIC TUBING

•• ••

CHARGE GAUGE

DAILY: •

Check the charge gauge on the agent cylinders, all portable extinguishers, fire detection air supply cylinder and the nitrogen actuator cylinder. Proper pressurization is indicated when the pointer is in the green zone.

If the pointer is not in the green zone refer to the AMEREX fire suppression system manual for details on corrective action.

•

70 PSI AIR SUPPLY CYLINDER

SIGNAL SWITCH

•

M760-083

PNEUMATIC FIRE DETECTION SYTEM •

Verify that the green "System OK" light on the system control panel is illuminated.

Check fire detection pneumatic tubing and air supply cylinder charge gauge.

CONTROL PANEL

If the green "System OK" light is not on refer to the AMEREX fire suppression system manual for details on corrective action.

ALARM LIGHT

•

•• ••

SYSTEM OK LIGHT

•

"PUSH TO TEST" BUTTON

AUDIO ALARM

• •

FIRE BUTTON

••

LOCKING PIN

SYSTEM CONTROL PANEL, AUDIO ALARM & LIGHT "System OK" light on control panel should be on.

M760-088

• WEEKLY: •

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

•

All components are in place and unobstructed.

•• M760-029A

NOZZLE WITH "BLOW-OFF" CAP

TYPICAL NOZZLE

•

All chemical delivery hoses and nozzles are connected and tight.

•

Check fire suppression electrical network.

•

Depress the "Push to TEST" button to confirm the AUDIO ALARM and the SYSTEM ACTIVATED LED in the control panel are working. As well the accessory ALARM LIGHT and AUDIO ALARM should turn ON.

•

Press the Relay Reset button, alarms should turn off and "System OK" LED should turn ON.

•

Check the manual actuation switch to ensure that all tamper indicators are in place, and access is unobstructed.

Read the AMEREX OWNERS MANUAL APPLICABLE TO THE SYSTEM INSTALLED on this machine for additional information on operation, service and AMEREX warranty requirements.

2.21

Tigercat M760 Mulcher

Controls and Operation

ENGINE COMPARTMENT 1

DIPSTICK

•

• ••

ENGINE CONTROL MODULE (ECM) 7501-0A

BATTERY DISCONNECT SWITCH

1. BATTERY DISCONNECT - Switch This manually operated switch located in the left side of engine compartment disconnects all electrical circuits on the machine from the battery, except the power to the ECM on the engine.

2

FILTER SCREEN

•

••

WARNING 195-16

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

FUEL TANK DIPSTICK/FILTER

2. FUEL TANK Located at the right rear of the machine, the fuel tank has a capacity of 210 gallons (795 liters) and incorporates a dipstick and filler screen under the filler cap. The dipstick slides through a hole in the side of the filler screen.

DO NOT drop the dipstick into the filler tube or it will punch a hole in the bottom of the filler screen. The filler screen should be removed and cleaned every 125 hours (reach in and lift it out). Replace the screen if it is damaged.

ENGINE ACCESS PANEL

••

3. HYDRAULIC OIL RESERVOIR

7501-9A

Located at the left rear of the machine, the hydraulic reservoir has a capacity of 90 gallons (340 liters). A sight gauge, accessible through the rear door indicates the HIGH and LOW levels of the hydraulic oil.

Incorporated into this gauge is a low level sending unit which signals a “low hydraulic oil” light in the cab to come ON when the oil level is low. Always keep the hydraulic oil between the HIGH and LOW calibrations.

ENGINE ACCESS PANEL

CAUTION The SIDE REAR engine compartment access panels are NOT HINGED or permanently attached to the machine, but are held in place by the LOWER LATCH. Therefore they can fall during the process of removing them from the machine. Once the LATCH is opened the SIDE REAR 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. Use two hands to carefully remove the panel.

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

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

2.22

Tigercat M760 Mulcher

Controls and Operation FILL HOSE

3

• SIGHT GAUGE HYD. OIL LEVEL

•

•

•

•

SUCTION TUBE

SENDING UNIT - LOW HYDRAULIC OIL 316-25

HYDRAULIC OIL RESERVOIR

4. HYDRAULIC HAND FILL PUMP The hydraulic hand fill pump, located at the rear of the machine is used for adding oil to the hydraulic oil reservoir.

SUCTION TUBE

•

To add oil to the reservoir, clean suction tube and remove cap. Open oil fill shut-off valve, insert end of suction tube into supply drum and operate the pump. The oil is pumped directly into the hydraulic reservoir via a return filter. The pump should always be operated at a medium speed with steady motion.

Pumping too fast may cause oil to bypass oil filter.

4

•

OIL FILL SHUT OFF VALVE

• •

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

FILL HOSE

7501-20A

2.23

HAND FILL PUMP

Tigercat M760 Mulcher

Controls and Operation

5. ENGINE AIR PRECLEANER The engine air precleaner cleans engine air before it reaches the air cleaner filter elements. It removes contaminants such as dust, powder, insects, rain and snow. This precleaner is self powered and self cleaning requiring virtually no maintenance. However, it should be checked periodically to make sure that foreign materials have not plugged the intake area or the exhaust port area.

AIR PRECLEANER

M760-011

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

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

• • • •

THE TURBO II PRECLEANER HAS SPECIALLY DESIGNED BLADES THAT CAUSE THE INCOMING AIR TO SPIN TURBO 2

ONLY THE PURIFIED AIR GOES TO THE AIR FILTER

TURBO II PRECLEANER OPERATION

EXHAUST PORT AREA

218-21

PRECLEANER REAR VIEW 2.24

Tigercat M760 Mulcher

Controls and Operation

6. AIR CLEANER

SAFETY ELEMENT (INSIDE PRIMARY ELEMENT)

The air cleaner on this machine uses two filter elements; a primary element and a safety element. Both are accessible through a hinged access cover in the top of the engine enclosure.

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

PRIMARY ELEMENT 7502-6A

••

••

AIR FILTER ELEMENTS

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 are removed for replacement. The safety element does reduce this risk but it should also be replaced at every third primary element change.

M760-010

IMPORTANT STEPS TO FOLLOW WHEN CHANGING FILTER ELEMENTS

FILTER RESTRICTION INDICATOR

1. Release the cover latch gently to reduce the amount of dust dislodged.

A filter restriction indicator is located in the battery compartment, this should show green when the engine is running at HIGH IDLE. Service is required if the indicator shows red.

2. Avoid dislodging dust from filter element(s) by gently pulling the element off the outlet tube.

The most common and damaging servicing problems are:

3. Always clean the sealing surface of the outlet tube before inserting a new filter element.

OVER SERVICING

4. Always clean the inside of the outlet tube.

Filter elements increase in dust cleaning efficiency as dust builds up on the media.

Looks can be deceiving. A filter that looks dirty may actually be more efficient than one that is clean. A filter with dust build up on the media reaches nearly 100% dust cleaning efficiency. Only when a filter is so clogged with dirt that air restriction goes beyond engine manufacturer's guidelines, should a filter be replaced.

5. Check your old filter sealing surfaces. This will 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.

NOTE: This does not apply to hydraulic oil or diesel engine oil filters.

8. Check connections and ducts for an air tight fit. Ensure that all clamps, bolts and connections are tight. Check rubber elbows for splits or wear points. Leaks in these locations send dust directly to the engine.

2.25

Tigercat M760 Mulcher OPERATING MACHINE

Controls and Operation

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

DIPSTICK

•

PRE-START CHECKS: 1. Ensure ignition switch and saw switch are in the OFF position and set parking brake ON.

7501-1A

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

DIPSTICK

••

76-6AA

CHECK ENGINE OIL LEVEL

PUMP DRIVE GEARBOX DIPSTICK

CHECK FUEL LEVEL

••

2. Check fuel level (Dipstick provided).

LEVEL GAUGE

•

7502-4A

CHECK PUMP DRIVE GEARBOX OIL LEVEL

5. Check pump drive gearbox oil level (Dipstick provided)

TRANSMISSION OIL LEVEL CHECK

•• 196-3AX

CHECK HYDRAULIC OIL LEVEL

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

307-27A

CHECK TRANSMISSION OIL LEVEL

6. Check transmission oil level (dipstick).

2.26

Tigercat M760 Mulcher

Controls and Operation

CHECK ENGINE COOLANT LEVEL 7. Check the engine coolant level.

7502-5A

AIR PRECLEANER

M760-011

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

WARNING

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

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

•• 12

7502-10A

PARKING BRAKE ENGAGED POSITION

11. Check parking brake for proper operation.

FUEL LINE WATER SEPARATOR

•• WATER SEPARATOR BOWL 216-2A

• DRAIN TAP

8. Drain water from fuel line water separator.

2.27

Tigercat M760 Mulcher

Controls and Operation

STARTING ENGINE:

RESTARTING AN ENGINE THAT HAS RUN OUT OF FUEL

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

If the engine runs out of fuel, the fuel line must be primed:

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

1. Refill fuel tank completely.

2. Prime the fuel system using the hand primer on the fuel lift pump on the engine.

3. Move throttle control to the LOW IDLE position, set parking brake ON, insure that the Direction / Speed lever is in the center locked position.

3. Bleed the system according to engine manual procedures.

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

NOTE: The engine will not turn over unless the parking brake is ON and the Direction / Speed Lever is locked in the center position.

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

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

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

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

NOTE: If the engine does not start after three attempts, check the fuel supply system.

Absence of blue or white exhaust smoke during cranking indicates no fuel is being delivered.

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

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

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

COLD WEATHER STARTING

• Allow a cold engine to warm up at LOW IDLE for at least five minutes before applying any load. Check all engine parameters on the EMS often during the warm up period.

WARNING The engine utilizes an air intake heater grid. To avoid personal injury and property damage, NEVER use a starting fluid. Starting aid fluids, which contain Ether, can cause an explosion.

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

IMPORTANT Cold start-ups can result in pump failure, refer to "APPROVED HYDRAULIC OILS" in SECTION 3 for recommended oil.

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

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

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

1. Follow the STARTING ENGINE CATERPILLAR ENGINE MANUAL instructions for this COLD WEATHER STARTING procedure.

2.28

Tigercat M760 Mulcher IMPORTANT To prevent damage to starter, do not engage starter motor for more than 15 to 20 seconds. Wait 2 minutes between each attempt to start the engine. If engine fails to start, refer to engine manufacturer operator's manual.

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

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

Controls and Operation (h) When cold weather conditions exist, continue the process of warming up the hydraulic system by repeating steps (e) through (g) several times. As the hydraulic system warms up, engine speed can be increased gradually to the HIGH IDLE position. (i) Turn cutter on. (j) After completion of the warm-up and system testing, turn the cutter OFF, stop the drum and rest the cutting head on the ground. (k) Set the parking brake ON. (l) Move the throttle control to the LOW IDLE position.

WARNING

MACHINE PREPARATION

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

SYSTEM TEST AND WARM-UP Before commencing cutting operations, follow steps (a) through (m) to accomplish the following:

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

• Warm up the hydraulic system.

WARNING

• Test all systems for proper operation.

• Inspect for hydraulic oil leaks.

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

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.

Assuming machine was parked on level ground at last shutdown: (a) Start engine. (b) Ensure EMS and warning lights are indicating normal operating conditions. (c) Check that all personnel are clear of the machine. (d) Raise throttle control to the MID position. (e) Slowly raise and lower boom, check for proper operation.

With the cutting head raised slightly off the ground: (f) Tilt the cutting head forward and back and check that it is operating correctly. (g) Steer the machine to the left and right.

2.29

Tigercat M760 Mulcher

Controls and Operation

STOPPING ENGINE

IMPORTANT Stopping the engine immediately after it has been working under load can result in overheating and premature wear of the engine components. Follow the stopping procedure outlined below to allow the engine to cool.

1.

Park machine on level ground and rest cutting head on the ground.

2.

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

3.

Do not race engine before shut-off.

4.

Engage parking brake.

5.

Stop engine by turning ignition switch to the OFF position.

WARNING

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

• Engage parking brake, lower the cutting head to the ground.

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

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

2.30

Tigercat M760 Mulcher CARE OF THE MACHINE

Controls and Operation 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 edges and creep in.

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

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

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 manufacturer's instructions be followed.

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

4. Do not apply load to a cold engine.

5. Close and secure all doors and access covers.

6. Do not allow debris to build up around radiator intake doors or anywhere else on the machine. Clean frequently.

Some Important Don’ts DO NOT use abrasive or highly alkaline cleaners on LEXAN sheet products.

7. Be sure that the cutting head is resting on the ground before servicing or parking the machine.

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

CLEANING INSTRUCTIONS FOR LEXAN WINDOWS (Three rear windows)

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

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.

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

Compatible Cleaning Agents • Aqueous Solutions of Soaps and Detergents

3. Rinse with clean lukewarm water.

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

Formula 409 Freon T.F. Palmolive Liquid

To remove wet paint, glazing compound or grease, rub lightly (not in direct sunlight) with a good grade of VM&P naphtha, isopropyl

Top Job Joy VM&P grade Naphtha Windex with Ammonia D

GRAFFITI REMOVAL (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. CLEANING INSTRUCTIONS FOR GLASS WINDOWS (Front and both doors) Normal window cleaning procedures are acceptable.

7503-7

SIDE WINDOWS 2.31

Tigercat M760 Mulcher TOWING INSTRUCTIONS

Controls and Operation ARTICULATION LOCK BAR

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

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

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

2. Lower cutting head to the ground, apply parking brake, stop engine and remove ignition key.

WARNING

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

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

3. Install articulation lock bar.

STEERING CYLINDERS

STEERING CYLINDERS

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

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

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

REAR CHASSIS FRONT CHASSIS

••

•

RETAINING PIN

• SM47

NORMAL HOSE CONNECTIONS

HOSES ON ONE CYLINDER CROSS CONNECTED FOR TOWING

4. To allow the machine to steer while towing and prevent damage to the steering cylinders, cross hydraulic hoses on one of the steering cylinders. This will allow trapped oil to flow freely between the two steering cylinders, providing ease of turning with some dampening effect.

5. Remove articulation lock bar.

• LYNCH PIN LOCK BAR

• 195-24

LOCK BAR IN LOCKED POSITION

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

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

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

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

2.32

Tigercat M760 Mulcher TRANSPORTING INSTRUCTIONS

Controls and Operation

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

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

With the wheels on or off:•

The attachment must be lowered to the truck bed.

•

The articulation lock bar must be installed.

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

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

•

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

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

2.33

Tigercat M760 Mulcher LIFT BOOM CYLINDER LOCK

Controls and Operation

Before performing work under the cutting head or lift boom, ensure that the attachment is firmly supported on level ground, on solid stands or, install lift boom cylinder lock.

LIFT BOOM CYLINDER LOCK - IN STORAGE

••

7501-1AA

LIFT BOOM CYLINDER LOCK - IN STORAGE

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

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

LIFT BOOM

• CYLINDER

• • 'T' HANDLE

195-22

LIFT BOOM CYLINDER LOCK IN LOCK POSITION

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

• Always install 'T' handle retainer bolt.

• Use only to support boom and cutting head.

• Do not use to set hydraulic pressures.

2.34

Tigercat M760 Mulcher FUSE AND RELAY COMPARTMENT- CAB REAR WALL

2.35

Controls and Operation

Tigercat M760 Mulcher CONTROLS AND INSTRUMENTS - CAB 5

6

7

Controls and Operation

8

••

9

••

5

• ••

••

••

10

4 11

••

••

••

•• 12 13 3

••

•

2

17

••

14

•

•

•• •• 15

1

••

16

1. Freash Air Filter (in roof)

9. Forward Travel Foot Pedal

2. Parking Brake Lever

10. R.H. Joystick - Boom Functions

3. Pressurized Water System

11. Switch Control Panel & EMS Display

4. L.H. Joystick - Steering

12. Dome Light

5. Radio Speaker

13. Heater & A/C Controls

6. Foot Rest

14. AM/FM Stero System

7. Brake Foot Pedal

15. Engine Throttle Control

8. Reverse Travel Foot Pedal

16. Seat 17. Heater and A/C UNIT

2.36

Tigercat M760 Mulcher SECTION 3 - LUBRICATION & MAINTENANCE DECEMBER 2006

CONTENTS - SECTION 3 AIR CONDITIONING SYSTEM, CHECKING ....... 3.16 APPROVED HYDRAULIC OILS ............................ 3.7

NEW MACHINE MAINTENANCE FIRST 8 HOURS ............................................... 3.2 FIRST 125 HOURS:~ ........................................ 3.2

BELT, ENGINE SERPENTINE, REPLACING ..... 3.21 CENTER JOINT LUBRICATION ................................................ 3.17 MAINTENANCE .............................................. 3.17

PRESSURE/SPEED SETTINGS ........................ 3.33 PRESSURIZED WATER SYSTEM MAINTENANCE .............................................. 3.14 REPLACING ENGINE SERPENTINE BELT ....... 3.21

DRIVE SHAFT SPLINE LUBRICATION, MIDDLE AND REAR ....................................... 3.22 ELECTRICAL SCHEMATIC SHEET 1 OF 6 ................................................ 3.27 SHEET 2 OF 6 ................................................ 3.28 SHEET 3 OF 6 ................................................ 3.29 SHEET 4 OF 6 ................................................ 3.30 SHEET 5 OF 6 ................................................ 3.31 SHEET 6 OF 6 ................................................ 3.32 ENGINE MAINTENANCE CHART ...................... 3.10 ENGINE SERPENTINE BELT, REPLACING ...... 3.21 FILTERS CHARGE PUMP PRESSURE FILTER ........... 3.12 FUEL FILTER/WATER SEPARATOR ............. 3.11 FUEL TANK STRAINER .................................. 3.11 HYDRAULIC OIL RETURN FILTERS .............. 3.13 SERVICING GUIDELINES OIL FILTERS ................................................ 3.13

SCHEDULED MAINTENANCE GENERAL ......................................................... 3.3 8 HOURS .......................................................... 3.4 40 HOURS ........................................................ 3.4 125 HOURS ....................................................... 3.5 250 HOURS ....................................................... 3.5 500 HOURS ....................................................... 3.6 1000 HOURS ..................................................... 3.6 2000 HOURS ..................................................... 3.6 SEASONAL ....................................................... 3.7 SPEED CONTROL LEVER ADJUSTMENT ........ 3.24 START-UP .......................................................... 3.19 STARTUP PROCEDURE AFTER MAINTENANCE .................................. 3.18 TIGHTENING POINTS .......................................... 3.2 TORQUE CHART ................................................ 3.25 TORQUE SPECIFICATIONS - GENERAL .......... 3.26 TRANSMISSION ................................................ 3.17 CHECK OIL LEVEL ......................................... 3.17

HYDRAULIC OILS, APPROVED ........................... 3.7 WHEELS, INSTALLING ........................................ 3.2 LUBRICATION AND SERVICE POINTS CHART .. 3.9 MACHINE START-UP ......................................... 3.19 MAINTENANCE, GENERAL ................................. 3.3

Tigercat M760 Mulcher

Lubrication and Maintenance

PREVENTIVE MAINTENANCE SCHEDULE FOR M760 Mulcher _______________________________________________________________________________________

NEW MACHINE MAINTENANCE IMPORTANT! __________________________________________

THE FIRST 125 HOURS:~

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.

REPLACE:~ • OIL IN PUMP DRIVE GEARBOX • OIL IN TRANSMISSION

__________________________________________ HOUR METER ~ MAINTENANCE: CHECK THE MACHINE HOUR METER ON A REGULAR BASIS TO DETERMINE YOUR SCHEDULED MAINTENANCE TIMES.

• HYD. OIL CHARGE FILTER † :FAN DRIVE (1); TRAVEL (1); CUTTER (1)

THE INTERVALS AND TIMES ON THE SCHEDULED MAINTENANCE CHART IN THIS MANUAL ARE FOR NORMAL OPERATING CONDITIONS.

• HYD. OIL RETURN FILTER †, DOUBLE ELEMENT CASE DRAIN FOR FAN, TRAVEL AND CUTTER

_______________________________________________________________________________________

• HYD. OIL RETURN FILTER †, DOUBLE ELEMENT BOOM/STEER, PILOT SYSTEM

• HYD. OIL FILTER †, LOW PRESSURE RETURN TIGHTENING POINTS:• ALL HYDRAULIC CONNECTIONS • HOSE CLAMPS • CENTER JOINT PIN SECURING BOLTS • TRANSMISSION SECURING BOLTS • ENGINE MOUNTING BOLTS • PUMP DRIVE GEARBOX SECURING BOLTS • AXLE MOUNTING BOLTS • WHEEL RETAINING BOLTS • CAB SECURING BOLTS • PIN RETAINERS • ANY OTHER LOOSE NUT, BOLT OR FITTING REFER TO DIESEL ENGINE SERVICE MANUAL FOR ADDITIONAL REQUIRED MAINTENANCE AT THIS SCHEDULED TIME PERIOD. _______________________________________________________________________________________

† Use of filters other than genuine Tigercat replacement hydraulic oil filters is not recommended.

3.2

Tigercat M760 Mulcher

Lubrication and Maintenance

GENERAL CAUTION ALL HANDLES, STEPS AND PLATFORMS MUST BE KEPT FREE OF GREASE, OIL FUEL, MUD, SNOW AND ICE. ; CLEAN AROUND FILLER CAPS BEFORE CHECKING OR ADDING FLUIDS ; RELEASE HYDRAULIC PRESSURES AND CLEAN AROUND HYDRAULIC FITTINGS BEFORE BREAKING CONNECTION. PLUG OR CAP IMMEDIATELY

; ALWAYS HAVE A FIRE EXTINGUISHER AT HAND ; FOR SAFETY, ALWAYS LOWER BOOM AND ATTACHMENT TO THE GROUND WHEN LEAVING CAB, LEAVING MACHINE UNATTENDED OR DURING SERVICE ; FOR SAFETY, WHEN WORKING UNDER BOOM, ALWAYS LOWER TO GROUND, SUPPORT PROPERLY OR INSTALL LIFT BOOM CYLINDER LOCKING DEVICE . (REFER TO SECTION 2 OF THIS MANUAL) ______________________________________________

; CLEAN UP SPILLS AS SOON AS POSSIBLE ; ALWAYS USE CLEAN OIL AND CONTAINERS ; DRAIN DIRTY OIL WHILE STILL WARM ; DO NOT EXCEED RECOMMENDED FLUID LEVELS ; SERVICE ALL HYDRAULIC FILTERS AFTER THE FAILURE OF A PUMP, MOTOR, CYLINDER OR VALVE. FAILURES OF THIS NATURE COULD CONTAMINATE THE ENTIRE HYDRAULIC SYSTEM ; TOP UP DIESEL FUEL AT END OF EACH SHIFT TO REDUCE CONTAMINATION BY CONDENSATION ; CLEAN UP OIL SPILLS ON WALKING SURFACES AND TOP OF ENGINE ENCLOSURE IMMEDIATELY ; BEFORE WELDING ON MACHINE BE SURE MASTER SWITCH AND ECM PLUG ARE DISCONNECTED ; WHEN WELDING SECURE GROUND CONNECTION AS CLOSE TO WORKING POSITION AS POSSIBLE TO PREVENT ARCING ACROSS MACHINED SURFACES OR THROUGH BEARINGS

3.3

Tigercat M760 Mulcher

Lubrication and Maintenance

SCHEDULED MAINTENANCE EVERY 8 HOURS (EVERY SHIFT):~

EVERY 40 HOURS:~

• CHECK ENGINE OIL LEVEL

• PERFORM 8 HOUR MAINTENANCE

• DRAIN FUEL/WATER SEPARATOR

AND IN ADDITION:~

• CHECK HYDRAULIC OIL LEVEL

• CHECK 1ST STAGE AIR INTAKE, EMPTY DUST CUP AND CHECK TUBES

• CHECK PUMP DRIVE GEARBOX OIL LEVEL WITH DIPSTICK

• DRAIN COMPRESSED AIR TANK

• CHECK TRANSMISSION OIL LEVEL AT DIPSTICK • LUBRICATE TILT AND LIFT CYLINDER ENDS, 8-FITTINGS, PURGE • LUBRICATE LIFT BOOM AND TILT LINKAGE, 9-FITTINGS, PURGE

• LUBRICATE AXLES ~ OUTER BEARINGS 1 FITTING, 4-PLACES, ONE SHOT, HAND GREASE GUN ONLY • LUBRICATE MID DRIVE SHAFT SLIP JOINT* 1-FITTING, *NOTE: LUBRICATE MID DRIVE SHAFT SLIP JOINT WITH MACHINE ARTICULATED

• LUBRICATE CUTTER DRIVE SHAFT BEARINGS. CLEAN:~

• LUBRICATE FRONT DRIVE SHAFT SUPPORT BEARING, 1-FITTING, PURGE

• AIR CONDITIONER CONDENSOR, OIL COOLER, CHARGE AIR COOLER AND RADIATOR BY REVERSING AIR FLOW

• LUBRICATE CENTER JOINT BEARINGS, 2-FITTINGS, PURGE

CHECK:~

• LUBRICATE STEERING CYLINDER ENDS, 4-FITTINGS, PURGE

• FOR LEAKAGE AROUND HYDRAULIC COMPONENTS AND FLEXIBLE HOSES

______________________________________________

• FOR LOOSE NUTS, BOLTS AND FITTINGS • CONDITION AND TENSION OF ACCESSORY DRIVE BELT (FAN BELT).

• CONDUCT AN OVERALL VISUAL INSPECTION. REFER TO DIESEL ENGINE SERVICE MANUAL FOR ADDITIONAL REQUIRED MAINTENANCE AT THIS SCHEDULED TIME PERIOD. ______________________________________________

3.4

Tigercat M760 Mulcher

Lubrication and Maintenance

SCHEDULED MAINTENANCE EVERY 125 HOURS:~

EVERY 250 HOURS:~

• PERFORM 8 HOUR MAINTENANCE

• PERFORM 8 HOUR MAINTENANCE

• PERFORM 40 HOUR MAINTENANCE

• PERFORM 40 HOUR MAINTENANCE

AND IN ADDITION:~

• PERFORM 125 HOUR MAINTENANCE

• LUBRICATE REAR AXLE PIVOT, 2-FITTINGS, PURGE

AND IN ADDITION REPLACE:~

• LUBRICATE REAR DRIVE SHAFT SLIP JOINT 1-FITTING, PURGE

• OIL IN TRANSMISSION

• ENGINE OIL AND CHANGE OIL FILTER

• OIL IN CUTTER GEARBOX

CHECK:-

• CHECK FUEL TANK FILLER SCREEN

• FLUID LEVEL IN BATTERIES UNLESS MAINTENANCE FREE

• ENGINE FUEL FILTER*

• ENGINE COOLANT LEVEL

• FUEL/WATER SEPARATOR FILTER*

• 2ND STAGE AIR INTAKE PRIMARY FILTER

• 2 ND AIR INTAKE PRIMARY FILTER

• ENGINE R.P.M.

• DESSICANT CARTRIDGE IN COMPRESSOR AIR DRYER (FREQUENT USE) ‡

• CASE DRAIN HYDRAULIC OIL FILTER

‡ SEE 500 HRS IF USED INFREQUENTLY

• HYDRAULIC PUMP AND MOTOR SECURING BOLTS

CHECK:-

• TORQUE TIGHTENING POINTS AS PER NEW MACHINE MAINTENANCE

• AIR INTAKE PRECLEANER, CLEAN AS REQUIRED

VISUALLY CHECK FOR DAMAGE TO:-

• CHECK ENGINE AIR FILTER RESTRICTION INDICATOR

• LIFT BOOM AND TILT LINKAGE

*REFER TO DIESEL ENGINE SERVICE MANUAL FOR ADDITIONAL REQUIRED MAINTENANCE AT THIS SCHEDULED TIME PERIOD.

• FRONT AND REAR FRAME • CENTER JOINT AREA

______________________________________________

• ATTACHMENT MAKE REPAIRS IMMEDIATELY VISUALLY INSPECT FOR:• FRAYED ELECTRICAL WIRING AND HYDRAULIC HOSE • WEAR IN ANY OTHER COMPONENTS CLEAN/REPLACE:• AIR CONDITIONER RE-CIRCULATION FILTER • CAB FRESH AIR FILTER REFER TO DIESEL ENGINE SERVICE MANUAL FOR ADDITIONAL REQUIRED MAINTENANCE AT THIS SCHEDULED TIME PERIOD. ______________________________________________

3.5

Tigercat M760 Mulcher

Lubrication and Maintenance

SCHEDULED MAINTENANCE EVERY 500 HOURS:~

EVERY 1000 HOURS:~

• PERFORM 8 HOUR MAINTENANCE • PERFORM 40 HOUR MAINTENANCE

• PERFORM 8 HOUR MAINTENANCE

• PERFORM 125 HOUR MAINTENANCE

• PERFORM 40 HOUR MAINTENANCE

• PERFORM 250 HOUR MAINTENANCE

• PERFORM 125 HOUR MAINTENANCE

AND IN ADDITION REPLACE:~

• PERFORM 250 HOUR MAINTENANCE

• 2 ND STAGE AIR INTAKE SAFETY FILTER

• PERFORM 500 HOUR MAINTENANCE

• HYD. OIL CHARGE PUMP FILTER † :FAN DRIVE (1); TRAVEL (1); CUTTER (1)

AND IN ADDITION REPLACE :~

• HYD. OIL RETURN FILTER † , DOUBLE ELEMENT BOOM/STEER, PILOT SYSTEM

• OIL IN AXLES, FRONT AND REAR

• HYD. OIL RETURN FILTER †, DOUBLE ELEMENT CASE DRAIN FOR FAN, TRAVEL AND CUTTER

• STRAINER IN ACCUMULATOR CHARGE VALVE

• OIL IN PUMP DRIVE GEARBOX

• OIL IN HYDRAULIC RESERVOIR

• DESSICANT CARTRIDGE IN COMPRESSOR AIR DRYER (INFREQUENT USE) ‡

CHECK:~ • CENTER JOINT PIVOT • INTAKE FUEL STRAINER, DRAIN TANK, CLEAN OR REPLACE AS NECESSARY

‡ SEE 250 HRS IF USED FREQUENTLY

REFER TO DIESEL ENGINE SERVICE MANUAL FOR ADDITIONAL REQUIRED MAINTENANCE AT THIS SCHEDULED TIME PERIOD.

CHECK:~ • ALL HYDRAULIC PRESSURES

______________________________________________

• TRANSMISSION MOUNTING; CHECK, RE-TORQUE

EVERY 2000 HOURS:~

• PARKING BRAKE, LUBE AS REQUIRED WITH WD40.

REFER TO DIESEL ENGINE SERVICE MANUAL FOR ADDITIONAL REQUIRED MAINTENANCE AT THIS SCHEDULED TIME PERIOD. ______________________________________________

• PERFORM 8 HOUR MAINTENANCE • PERFORM 40 HOUR MAINTENANCE • PERFORM 125 HOUR MAINTENANCE • PERFORM 250 HOUR MAINTENANCE • PERFORM 500 HOUR MAINTENANCE • PERFORM 1000 HOUR MAINTENANCE AND IN ADDITION REPLACE:~ • ENGINE COOLANT* *REFER TO DIESEL ENGINE SERVICE MANUAL FOR ADDITIONAL REQUIRED MAINTENANCE AT THIS SCHEDULED TIME PERIOD. ______________________________________________

† Use of filters other than genuine Tigercat replacement hydraulic oil filters is not recommended.

3.6

Tigercat M760 Mulcher

Lubrication and Maintenance

SCHEDULED MAINTENANCE SEASONAL:~ DRAIN AND REFILL HYDRAULIC OIL TANK AND BOTH FRONT AND REAR AXLES WITH RECOMMENDED HYDRAULIC OIL. SEE "APPROVED HYDRAULIC OILS" Note: The use of ALL WEATHER Synthetic oils need not be drained and refilled. ______________________________________________

APPROVED HYDRAULIC OILS IN ADDITION TO PROVIDING THE VEHICLE WITH ITS NORMAL OPERATIONAL FUNCTIONS, HYDRAULIC OIL IS ALSO USED TO FILL THE AXLE ASSEMBLIES, APPLY THE BRAKES AND OPERATE DIFFERENTIAL LOCKS. WET DISK BRAKES IN THE AXLES REQUIRE OIL WITH SPECIFIC PROPERTIES TO ENSURE REDUCED CHATTER AND ENSURE PROPER LUBRICATION OF MECHANICAL COMPONENTS. USE THE APPROPRIATE HYDRAULIC OILS LISTED BELOW .

IMPORTANT! DO NOT MIX SYNTHETIC OILS AND MINERAL OILS TOGETHER. USE ONE OF THE FOLLOWING RECOMMENDED MINERAL HYDRAULIC OILS

HYDRAULIC OIL THE FLUID USED TO FILL OR REPLENISH THE HYDRAULIC SYSTEM OF 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) 11514A R1 TYPE J20D (HYGARD) WlNTER)

USE THE FOLLOWING RECOMMENDED SYNTHETIC HYDRAULIC OIL

CHEVRON...........ALL WEATHER TRACTOR HYDRAULIC FLUID

3.7

Tigercat M760 Mulcher

Lubrication and Maintenance

3.8

LUBRICATION AND SERVICE POINTS

Tigercat M760 Mulcher

Lubrication and Maintenance Tigercat® Model M760 SERVICE AND LUBRICATION POINTS

REFER TO Tigercat OPERATOR'S MANUAL FOR FURTHER INFORMATION

1

COOLING SYSTEM

2

COOLING FAN

3

CENTER JOINT PIVOT

4

ENGINE OIL AND FILTER

5

FUEL FILTER

6

FUEL WATER SEPARATOR

7 8

FUEL CAP SCREEN

9

AIR INTAKE PRECLEANER

CHK

32

8.5

34

9

QTY

USG

LITERS

2000

CAPACITY

D/R

LUB

CHK

CHK

REP REP

2

CHECK MOTION BETWEEN CHASSIS LUGS

1

SEE ENGINE MANUFACTURER'S MAINTENANCE MANUAL

1

DRN

1 CHK CHK

1

CLEAN OR REPLACE AS NECESSARY

1

DRAIN TANK, CLEAN OR REPLACE AS NECESSARY

CHK

10 1ST STAGE AIR INTAKE

DESCRIPTION

MIXTURE; 40% DISTILLED WATER, 60% ANTIFREEZE (GM 6035M SPEC.) REFER TO ENGINE MANUAL FOR RECOMMENDED ADDITIVE CLEAN COOLING CORES BY

BY REVERSING AIR FLOW

CHK

INTAKE FUEL STRAINER

11 2 ND STAGE AIR INTAKE PRIMARY FILTER 12 2 ND STAGE AIR INTAKE SAFETY FILTER 13 HYDRAULIC OIL FILTER BOOM/STEER/PILOT 14 HYDRAULIC OIL FILTER CASE DRAIN

1000

500

250

125

40

SERVICE EVERY

8

125

SERVICE POINT NO.

FIRST ITEM

CHECK FOR BLOCKAGE BY LARGE DEBRIS

CHK

REP

1

REP † REP †

2

REMOVE DUST CUP AND EMPTY CHECK TUBES FOR BLOCKAGE CHECK RESTRICTION INDICATOR ON INTAKE PIPE AT FULL ENGINE RPM CHECK FILTER CONDITION INDICATOR AT SAFETY ELEMENT WITH ENGINE OFF DOUBLE FILTER ELEMENT

2

DOUBLE FILTER ELEMENT

CHK REP

REP † REP †

CHK

1

15 HYDRAULIC OIL FILTER CHARGE PRESSURE: DRIVE, CUTTER, FAN 16 HYDRAULIC OIL FILTER LOW PRESSURE RETURN

REP †

REP †

3

3-SINGLE ELEMENT FILTERS

REP †

REP †

1

SINGLE FILTER ELEMENT

17 PUMP DRIVE GEARBOX

D/R

CHK

18 TRANSMISSION

D/R

CHK

D/R D/R

7.3

1.9

5.7

1.5

CHECK LEVEL WITH DIPSTICK. FILL WITH MIL-L-2105C OR API-GL-5 BELOW -10Fº(-23ºC) USE 75W-90 UP TO 100ºF(38ºC) USE 80W-90 ABOVE 100ºF(38ºC) USE 85W-140 SEE MULCHER MANUFACTURERS MAINTENANCE MANUAL FOR SERVICE INFORMATION

19 MULCHER HEAD

20 AXLES:

FRONT REAR

21 HYDRAULIC RESERVOIR ‡

D/R D/R CHK

D/R 340

22 PARKING BRAKE

23 ACCUMULATOR CHARGE VALVE STRAINER 24 A/C & HEATER FILTERS 25 COMPRESSED AIR TANK DRAIN 26 COMPRESSED AIR DRYER

53 14.2 31 8.2

DRAIN AND REFILL COMPLETE SYSTEM ANNUALLY OR AS REQUIRED SEASONALLY. MUST MEET JOHN DEERE TYPE J20C (HY-GARD) SUMMER OR TYPE J20D (HY-GARD) WINTER

90

‡ TIGERCAT RECOMMENDS REGULAR FLUID SAMPLING TO DETERMINE OIL AND COMPONENT CONDITION REFER TO SECTION 2 OF OPERATOR'S MANUAL. APPLY WD-40 TO BOTH SIDES OF SLIDE AND CLEVIS PIN ON HANDLE.

CHK LUB REP CHK DRN

*

*

REP REP 760M LUBECHART.XLS

3.9

1 CLEAN OR REPLACE AS NECESSARY PULL DRAIN VALVE CABLE TO PURGE WATER REPLACE DESSICANT CARTRIDGE:* OCCASIONAL USE, EVERY 500 HRS * FREQUENT USE, EVERY 250 HRS

Tigercat M760 Mulcher

Lubrication and Maintenance

CATERPILLAR 3176/3196 INDUSTRIAL DIESEL ENGINE MAINTENANCE INFORMATION CONSULT OPERATOR'S MANUAL FURTHER INFORMATION

3.10

Tigercat M760 Mulcher

Lubrication and Maintenance 11. Lubricate the gasket on top of the new filter with clean engine oil and prefill the filter with clean fuel.

FILTERS - REMOVE AND REPLACE

12. Screw the new filter on to the filter head until the gasket makes contact with the seat and then hand tighten an additional 3/4 turn only.

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.

13. Turn the fuel shut-off valve ON, start the engine and check for leaks.

FUEL TANK STRAINER

FUEL FILTER/WATER SEPARATOR This is a combination unit, with a replaceable fuel filter and a removable water sediment bowl on the bottom of the unit. The water sediment bowl is only replaced if it becomes damaged or non-functional.

For service and replacement intervals see SERVICE AND LUBRICATION CHART in THIS SECTION.

1. Park machine on level ground, install articulation lock pin, lower cutting head to ground, stop engine, pull parking brake ON and block wheels.

3. Remove the round fuel tank cleanout cover plate and “O” ring from the access hole.

4. Before removing the strainer, clean any debris from the bottom of the tank and wipe it clean.

3. Place rags below to catch the spillage of fuel.

4. Wearing face protection (in case of a fuel squirt) turn OFF the fuel shut-off valve on the side of the fuel tank and unscrew the old filter.

5. Remove the fuel strainer using the hex on the end of strainer. Carefully clean the strainer (it may be damaged by rough handling).

5. Remove and discard the small 1” I.D. gasket from the threaded extension on the filter head.

6. Remove the water sediment bowl from the bottom of the old filter. Discard this gasket also. Dispose of old filter and any fuel properly.

9. Lubricate gasket for bottom of filter and water sediment bowl with clean engine oil and carefully hand tighten the water sediment bowl onto the new filter. It is plastic and will break if over tightened. Close the water drain valve.

NOTE: This should only be required if excessive quantities of foreign material has built up inside the tank.

2. Drain the fuel tank. (plug in bottom)

2. Wipe clean the area around the filter and head.

8. Check the seating area for the gaskets on the filter head and the water sediment bowl and wipe clean.

Changing or cleaning the strainer:

1. Park machine on level ground, install articulation lock pin, lower attachment to ground, stop engine, pull hand brake ON and block wheels.

Changing the filter:

7. Clean the water sediment bowl.

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.

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.

IMPORTANT Filters that are an integral part of the engine (fuel and lubricating oil) should be serviced and replaced according to the engine manufacturer's operation and maintenance manual.

10. Lubricate the new 1” I.D. gasket with clean engine oil and install onto the threaded extension on the filter head.

3.11

Tigercat M760 Mulcher

Lubrication and Maintenance

HYDROSTATIC CHARGE PUMP PRESSURE FILTER These single full flow filters, are mounted in the output side of the hydrostatic charge pumps for the Fan, Propel and Cutter drive systems. For service and replacement intervals see SERVICE AND LUBRICATION CHART in THIS SECTION.

RETURN FILTERS BOOM, STEER & PILOT

•• ••

Changing the filter:

•

••

1. Park machine on level ground, install articulation lock bar, lower cutting head to ground, stop engine, pull parking brake ON and block wheels.

RETURN FILTERS CASE DRAIN

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. Dispose of old filter and any oil properly.

••

5. Check the seating area for the gasket on the filter head and wipe it clean.

•

6. The new filter has an attached gasket. Prefill the new filter with clean hydraulic oil and apply hydraulic oil to the gasket surface.

CHARGE PRESSURE FILTERS - DRIVE, CUTTER & FAN

7. Screw on the new filter until the gasket makes contact with the seat in the filter head.

M760-012

8. Hand tighten filter an additional 1/2 turn only.

9. Start the engine and check for leaks.

•• LOW PRESSURE RETURN FILTER

M760-013

IMPORTANT Contaminated hydraulic fluid can lead to premature failure of hydraulic components and costly repairs. Filters must be replaced at the recommended time intervals, Refer to SCHEDULED MAINTENANCE in THIS SECTION. Use of hydraulic oil filters other than the Tigercat brand could lead to severe wear and rapid failure of hydraulic system components.

3.12

Tigercat M760 Mulcher

Lubrication and Maintenance

HYDRAULIC FILTER SERVICING GUIDELINES FOR M760 MULCHERS

HYDRAULIC OIL RETURN FILTERS There are four identical full return flow, spin-on filter elements mounted on dual filter heads with built-in differential pressure bypass valves. For service and replacement intervals see SERVICE AND LUBRICATION CHART in THIS SECTION. Changing the filters:

IMPORTANT

1. Park machine on level ground, install articulation lock pin, lower cutting head to ground, stop engine, pull parking brake ON and block wheels.

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. Dispose of old filter and any oil properly.

5. Check the seating area for the gasket on the filter head and wipe it clean.

6. The Tigercat spin-on filter element is supplied with two gaskets enclosed. This machine uses the round section 'O' ring gasket for all four return filters. The square section gasket should be discarded.

FILTER HEAD

• • GASKET

• FILTR_SEALS 2

FILTER ELEMENT

'O' RING GASKET INSTALLATION

z '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.

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) 7. Start the engine and check for leaks.

3.13

NEVER PRE-FILL ANY HYDRAULIC FILTERS ON M760 MULCHERS Tigercat generally does not recommend the prefilling of spin-on filters due to the risk of damage to the hydraulic system caused by unfiltered oil.

Unfiltered oil used to pre-fill filters enters directly into the hydraulic circuit. Contaminants in unfiltered oil can cause significant and costly damage to hydraulic valves, pumps and motors.

The cleanliness of hydraulic oil cannot be guaranteed unless it is always prefiltered before use.

Tigercat M760 Mulcher

Lubrication and Maintenance

PRESSURIZED WATER SYSTEM MAINTENANCE

FILL & CHARGE PRESSURIZED WATER SYSTEM

OPERATION:

1. Open water shut off valve and completely discharge all water and compressed air from the tank via the hose end nozzle.

Turn the hand operated ball valve (shut off valve) under the seat to the ON position to draw water from the 10.5 USgallon (39.7 liter) pressurized holding tank at the rear of the machine. When not in use turn the water supply OFF at this valve and relieve the pressure in the rubber hose, under the operator's seat.

HOSE

CAUTION Never remove fill plug before de-pressurizing tank or injury may result. This fill plug incorporates a vent hole to release air pressure from the tank before the threads disengage. DO NOT replace this fill plug with any substitute.

WATER SHUT OFF VALVE (SHOWN CLOSED)

9

•

196-16A

••

••

PRESSURIZED WATER SYSTEM CONTROL VALVE (UNDER SEAT)

The pressure gauge on the side of the seat should read 60 psi.

•

AIR CHARGE VALVE

TANK FILL PLUG

•

726D-44

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.

•• PRESSURE GAUGE

196-9A

PRESSURIZED WATER SYSTEM

3. Close water shut off valve.

PRESSURIZED WATER SYSTEM

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

4. Fill tank with water. Tank capacity is approximately 10.5 USgallons (39.7 liters) When temperatures below 32°F are anticipated, use a 60/40 solution of Nontoxic R. V. Antifreeze or other suitable antifreeze.

Antifreeze solution must meet GM 6038M specifications.

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) the system needs to be PURGED. Refer to PURGING PRESSURIZED WATER SYSTEM in THIS SECTION. After testing, the tank must be refilled and pressurized to 60 psi. Refer to the following FILL AND CHARGE procedure. This FILL AND CHARGE procedure should be carried out yearly.

NOTE: Most Nontoxic RV Anti freeze solutions contain corrosion and algae inhibitors, it is therefore suggested that this solution be added to the water on a continual basis regardless of temperature conditions.

5. Install fill plug in tank.

3.14

NOTE: This is a special plug designed to withstand pressurization of the water tank. Do not substitute.

Tigercat M760 Mulcher

Lubrication and Maintenance

6. Pressurize the system to 60 psi as indicated on pressure gauge by connecting an air hose to air charge valve beside the pressure gauge.

PURGING PRESSURIZED WATER SYSTEM

7. Open the water shut off valve 8. Discharge about 1/2 US gallon (2 liters) 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.

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.

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.

9. Check fluid in the jug for contamination. If fluid is dirty dispose of it properly.

10. Close the water shut-off valve.

11. Release pressure and fluid from the hose.

12. Pressurize the system to 60 psi as indicated on pressure gauge by connecting an air hose to air charge valve beside the pressure gauge.

13. Return the hose to its storage location.

2. Slowly unscrew fill plug two full turns. Any remaining air in the tank will be heard expelling from the special fill plug. Do not remove fill plug until all air has been expelled.

3. Close the water shut off valve and add 2 USgallons (8 litres) of clean water to the tank.

4. Install fill plug in tank.

NOTE: This is a special plug designed to withstand pressurization of the water tank. Do not substitute.

5. Pressurize the system to 60 psi as indicated on pressure gauge by connecting an air hose to air charge valve beside the pressure gauge.

6. Open the shut off valve and completely discharge all the water in the tank via the hose end nozzle.

7. Discharge all the water into an empty antifreeze jug or other suitable container.

There will be significant foaming as the fluid is discharged into the jug. Continue until a very forceful flow is obtained and any contamination that may have been in the tank is flushed from the system.

8. If a forceful discharge was not achieved, repeat the purging procedure. If a second purging does not work, remove lines and check for an obstruction.

9. After the purging operation, fill and charge the system as described in FILL & CHARGE PRESSURIZED WATER SYSTEM in THIS SECTION.

3.15

Tigercat M760 Mulcher

Lubrication and Maintenance

CHECKING THE AIR CONDITIONING SYSTEM

IMPORTANT

Any service work must be performed by authorized A/C technicians. The system should be charged with R134a refrigerant only. PAG (polyalkeylene glycol) oil should be present in the system and must be used on 'O' ring fittings during assembly.

CAUTION

AIR CONDITIONING TOTAL SYSTEM VOLUME R134a Refrigerant

PAG Oil

2 LBS. 12 OZ.

7 OZ.

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.

• If using compressed air for cleaning, use at 30 psi or less.

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

7850AR1

The compressor and charge valves and receiver drier are accessed from the left side engine compartment. The evaporator core is accessed on the left hand side of the machine.

CHECK A/C CONDENSER CORE

Use this checklist to maintain system between service intervals. a.

Check and adjust compressor drive belt tension.

b.

Check air intake filters and clean as required.

c.

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.

•

RECEIVER/ DRYER

•

d. Check the evaporator core and the inside of the A/C housing for dirt and debris. Clean as required.

760M-026

CHECK A/C CONDENSER CORE

e. Run air conditioning system for 3 - 5 minutes. f.

CAUTION

Check to see that compressor clutch will engage.

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 30psi 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.

3.16

Tigercat M760 Mulcher

Lubrication and Maintenance

CENTER JOINT

TRANSMISSION:

MAINTENANCE OF CENTER JOINT Maintenance in this area is usually limited to:

By carefully following these procedures, the service life of the transmission will be extended and costly down time will be avoided.

a) Regular lubrication of the two center joint grease fittings to purge the pivot bearings of debris and water. Refer to SERVICE AND LUBRICATION POINTS in THIS SECTION for lubrication intervals. Use only high quality, lithium based EP2 grease containing molybdenum disulphide.

For additional information, refer to TRANSMISSION in SECTION 8 of the SERVICE MANUAL. TRANSMISSION OIL LEVEL CHECK/FILL

b) Visually checking the center joint pivot for looseness every 1000 hours. With an observer on the ground, keeping well clear of the center joint area, perform the following test to check for looseness of center joint.

•

1. Have operator lift the attachment off the ground and then rapidly raise and lower the head several times to "bounce" machine.

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.

M760-017

CHECK TRANSMISSION OIL LEVEL

CHECK OIL LEVEL Check oil level at end of every 8 hour shift.

Procedure: • Park on level ground, lower felling head, set parking brake on and turn off engine.

REAR CHASSIS

FRONT CHASSIS

CHECK FOR MOVEMENT IN THIS JOINT AREA

•

Clean dirt and debris from around oil dipstick and check oil level.

•

If required: add the recommended grade of oil through oil fill plug located on top of transmission housing.

Do not overfill.

724D-D11

1000 HOUR CHECK

3. Movement between front and rear chassis lugs or clunking of the pivot indicates a loose joint and preload must be checked.

Refer SECTION 11 of the SERVICE MANUAL for more information..

3.17

Tigercat M760 Mulcher

Lubrication and Maintenance

START-UP PROCEDURE AFTER MAJOR MACHINE MAINTENANCE This procedure should be followed: •

After major service or a rebuild.

•

Whenever the machine has been drained of hydraulic oil.

•

When any major component has been removed, repaired or replaced.

PRE-STARTUP AND FILLING 1. Check oil levels in the engine, the pump drive gearbox and the transmission.

2. Check coolant level in the radiator.

3. Do a final inspection of all fittings and clamps to make sure they are tight and will not leak.

4. Install the articulation lock bar and apply the parking brake.

5. Turn both differential lock switches to OFF. 6. Do not start engine. Purge air from hydraulic system as follows: •

Fill the hydraulic tank if it has been drained.

•

Ensure all filters are in place.

•

Fill the drive and saw pumps with hydraulic oil through the case drain ports.

NOTE: If the axles were drained of oil, refer to FILLING THE AXLES in SECTION 8 of THE SERVICE MANUAL.

3.18

Tigercat M760 Mulcher

Lubrication and Maintenance

MACHINE START-UP

CAUTION

Before beginning this procedure, perform the PRE START-UP AND FILLING steps.

Machine operator must ONLY take directions from the person doing the set-up.

NOTE: When the attachment is attached, re-torque all teeth (See attachment manual).

INSTALL A 0-1000 PSI. GAUGE AT ‘M3’ PORT.

1. Ensure the articulation lock bar is installed.

••

DISCONNECT MULTI PIN CONNECTOR

••

DRIVE CHARGE PRESSURE SET AT 340-370 PSI @ 2100 RPM

••

•

DRIVE PUMP

M760-019

M760-018

DISCONNECT MULTI PIN CONNECTOR 2. Disconnect the engine multi pin connector (prevents engine starting).

5. Install a 0-1000 psi. gauge on drive pump to check charge pressure at ‘M3’ port. Watch gauge closely during startup.

3. Crank engine for 3 seconds, wait for 5 seconds. Repeat 5 times to pump oil into pumps.

6. Start engine. If charge pressure does not rise within 20 to 30 seconds, TURN ENGINE OFF. If charge pressure is between 260 and 450 psi., run engine at IDLE for 20 minutes.

Check engine oil pressure in cab. Do not operate any functions.

4. Reconnect the multi pin connector. Do not start engine.

7. Remove pressure gauge from 'M3' port.

8. Install a 0 - 1000 psi. gauge on pilot manifold quick connect fitting. ("P2" on left side bulkhead )

P2

760-03

3.19

•

Tigercat M760 Mulcher

••

Lubrication and Maintenance STEER CIRCUIT MAIN RELIEF 2500 PSI.

PILOT PRESSURE RELIEF VALVE 675 PSI.

•

•

PILOT PRESSURE REDUCING VALVE 550 PSI.

726D-019

PILOT MANIFOLD

9. Turn pilot pressure reducing valve (far left end, top of pilot manifold) all the way IN until it is lightly seated.

M760-020

14. Set steer relief to 2500 psi. on gauge.

10. Adjust pilot pressure relief valve (second from left, top of pilot manifold) using gauge and set to 675 psi. and lock.

11. Using same gauge, reset pilot pressure reducing valve to 550 psi. and lock.

12. Remove pressure gauge from the pilot manifold.

STEER CIRCUIT MAIN RELIEF VALVE

15. With engine at IDLE, parking brake ON, hold foot brake down, bleed brakes in rear axle.

16. Remove pressure gauge from steer relief valve.

17. Turn both differential locks ON and run engine at IDLE for 30 minutes to purge air and fill axles with oil (axles fill with leakage from diff. locks). If wheels have been removed, operate forward and reverse pedals very slowly to fill axles with oil.

18. Set throttle to IDLE and run each BOOM function for 2 minutes to purge air from circuit.

1

•

19. Set throttle to FULL and run each BOOM function again for 2 minutes to flush circuit.

20. At FULL throttle, operate all other functions for 2 minutes to flush circuits.

21. Top up the radiator with clean coolant. With cylinders fully retracted, top up the hydraulic oil reservoir with clean hydraulic oil.

760-03

13. Install a 0-5000 psi. gauge (1) on steer circuit main relief (quick connect fitting).

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.

3.20

Tigercat M760 Mulcher

Lubrication and Maintenance

IMPORTANT Without a mulching head attached, the tilt function can cause damage to the arms.

Watch the two LINK ARMS very carefully, as they may drop down beside the boom arms and wedge, causing the crank arms to bend.

When necessary, lower the boom DOWN, watching closely and tilt FORWARD, again watching the link arms closely.

SERPENTINE BELT

•

CRANK, LINK AND BOOM ARMS

• CRANK ARM LINK ARM

••

BELT TENSIONER

••

M760-025

COVER PLATE REMOVED

3. Remove the cover plate to expose the belt and belt tensioner.

BOOM ARM

•

SERPENTINE BELT

192-21A

•

REPLACING THE ENGINE SERPENTINE BELT 1. Park the machine on level ground. Parking brake ON, attachment resting on the ground and engine off. Turn battery disconnect switch OFF.

• 1

••

••

BELT TENSIONER

2

M760-021

• ••

REMOVING SERPENTINE BELT

4. Install a Johnson bar with a 3/8" square drive in the square socket hole of the belt tensioner.

••

5. Loosen belt tensioner and remove the serpentine belt.

6. Replace the serpentine belt. Ensure that all of the ribs on the serpentine belt align with the grooves on the engine pulleys.

M760-0247

2. Remove the four bolts (1) mounting the cover plate (2) to the engine compartment.

3.21

Tigercat M760 Mulcher

Lubrication and Maintenance

MIDDLE AND REAR DRIVE SHAFT SPLINE LUBRICATION

MIDDLE SLIP SPLINE LUBRICATION 3. Apply grease to grease nipple until new, clean grease appears at slip spline seal, FIG. 'A'.

When operating in extremely wet or dusty conditions or when the regular service schedule has been neglected, insufficient lubrication to the spline area of the middle drive shaft will result in premature wear. In addition old grease often forms into a semi-solid, rubber-like plug preventing the purging of contaminants (water, dirt, sand, etc.) through the slip spline seal.

GREASE GUN

NEW GREASE APPEARS AT SLIP SPLINE SEAL

•

The most common cause of joint and slip spline failure is lack of proper lubrication.

SLIP SPLINE LUBRICATION

FIG. 'A' MIDDLE DRIVE SHAFT SLIP SPLINE LUBRICATION If grease is going IN but not coming OUT at the spline location, check to see if grease is exiting from the relief fitting at yoke end of slip spline, FIG. 'B'. If so, plug or cover the end of the relief fitting and continue to apply pressure to the grease nipple.

1. Park machine on level ground, and steer fully to the right. Lower felling head to the ground.

Set parking brake ON.

724D-D52

2. Stop the engine and relieve trapped pressure from pilot system and brake accumulators by performing the following steps: A. Close both doors. Turn key switch to ON position. Do not start the engine. Press pilot reset switch.

GREASE GUN

•

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

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

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

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

GREASE APPEARS AT RELIEF FITTING 724D-D51

FIG. 'B' MIDDLE DRIVE SHAFT YOKE END If grease pressure continues to exit from the relief fitting, remove the drive shaft and inspect for "hardened" grease build up, rust or other contaminants within the drive shaft. Repair or Replace drive shaft.

3.22

Tigercat M760 Mulcher

Lubrication and Maintenance

REAR SLIP SPLINE LUBRICATION 4. Apply grease to grease nipple until new, clean grease appears at the relief hole at yoke end of slip spline, FIG. 'C'.

GREASE GUN

•

GREASE APPEARS AT RELIEF HOLE 720C-01

FIG. 'C' REAR DRIVE SHAFT YOKE END 5. Plug or cover relief hole and continue to apply pressure to grease nipple until new, clean grease appears at slip spline seal.

6. If grease does not appear at slip spline seal and continues to exit from the covered relief hole, remove the drive shaft and inspect for "hardened" grease build up, rust or other contaminants within the drive shaft. Repair or Replace drive shaft.

3.23

Tigercat M760 Mulcher

Lubrication and Maintenance

SPEED CONTROL LEVER ADJUSTMENT 7

The friction setting on the speed control lever is variable and can be adjusted to allow proper operation.

•

The friction setting on the speed control lever may require adjustment, during normal operation, to maintain the set position of the lever, especially at maximum throw.

FRICTION SETTING PROCEDURE Before starting work, read and follow all servicing safety precautions in SECTION 1 of THIS MANUAL. 1.

Park machine on level ground, apply parking brake, lower attachment to ground, shut off engine.

2.

Position the speed control lever in the neutral position (pointing straight up).

3.

Raise the protective rubber ‘boot’ from the speed control valve body, located on the side instrument panel.

4.

Locate the adjustable friction set screw.

5.

Tighten the adjustable friction set screw as required (2.5mm hex key)

6.

Replace the protective rubber ‘boot’ over the speed control valve body.

M724D02

SPEED CONTROL LEVER

SPEED CONTROL LEVER

• PROTECTIVE RUBBER BOOT

•• ADJUSTABLE FRICTION SET SCREW

••

CONTROL PANEL

••

630B-31

3.24

SPEED CONTROL LEVER FRICTION SET SCREW LOCATION

Tigercat M760 Mulcher

Lubrication and Maintenance

TORQUE CHART LOCATION

Cylinders Pin bolts Piston nut, steer cyl.

Piston nut, boom/tilt cyl.

Gland, steer cyl.

Keeper plate bolts

THREAD DIAMETER

TORQUE (LUBRICATED) lbf-ft Nm

3/4" UNC 1 1/4" UNF 1 1/2" UNF 3/4" UNC

282-310 930 1640 450 282-310

393-420 1282 2260 620 389-427

Cab securing 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 engine to bracket bolts Front engine bracket to frame Rear engine to bracket bolts Rear engine bracket to frame

M12-1.75 x 65 G 8.8 1" x 8 UNC G8 3/4" x 10 UNC G8 3/4" x 10 UNC G8

682-750 282-310 282-310

925-1016 393-420 393-420

Pump drive gearbox Drive plate to flywheel Bell housing to engine Gearbox to bracket

7/16" x 14 UNC G8 5/8" x 11 UNC G8

52-57 159-175

71-77 216-237

1 1/4" x 12 UNF 3/4" x 10 UNC 3/8" UNF 1/2" UNF

300-350 280-310 37-41 70-80

408-476 380-420 50-55 95-110

Axle mounting bolts Front Rear

7/8" UNC 3/4" UNC

455-501 282-310

617-679 393-420

Wheel bolts

7/8" UNF

500-550

679-745

5/8" x 11 UNC G8 7/8" UNC

159-175 500-550

216-237 679-745

Drive shafts Yoke retaining nut, front shaft Pillow block retaining bolts Universal joint bolts Universal joint bolts

Transmission housing to bracket Transmission bracket to frame

Torque values pertaining to the engine are provided in the appropriate manuals.

3.25

Tigercat M760 Mulcher

Lubrication and Maintenance

GENERAL TORQUE SPECIFICATIONS The torque values listed below are for general use only.

DO NOT use these values if a different torque value or tightening procedure is shown for a specific application.

IMPERIAL GRADE 8 BOLTS

GRADE 5 BOLTS

IMPERIAL BOLT TORQUE SPECIFICATIONS GRADE 5 BOLTS GRADE 8 BOLTS COARSE THREAD 1/4" - 20 5/16" - 18 3/8" - 16 7/16" - 14 1/2" - 13 9/16" - 12 5/8" - 11 3/4" - 10 7/8" - 9 1" - 8 1 1/8" - 7 1 1/4" - 7 FINE THREAD 1/4" - 28 5/16" - 24 3/8" - 24 7/16" - 20 1/2" - 20 9/16" - 18 5/8" - 18 3/4" - 16 7/8" - 14 1" - 14 1 1/8" - 12 1 1/4" - 12

DRY lbf-ft Nm 11 - 12 15 - 16 26 - 30 35 - 40 44 -48 60 - 65 70 - 77 95 - 104 106 - 117 144 - 158 153 - 168 208 - 228 212 - 233 288 - 316 376 - 414 510 - 561 606 - 667 822 - 904 909 - 1000 1233 - 1355 1288 - 1417 1746 - 1921 1817 - 1999 2464 - 2710 DRY lbf-ft Nm 13 - 14 18 - 19 23 - 28 31 - 38 49 - 54 67 - 73 78 - 86 106 - 116 120 - 132 163 - 179 171 - 188 232 - 255 240 - 264 326 - 358 420 - 462 570 - 626 668 - 735 906 - 996 995 - 1096 1359 - 1486 1445 - 1590 1960 - 2155 2012 - 2213 2728 - 2997

LUBRICATED lbf-ft Nm 8 - 10 11 - 13 20 - 28 27 - 38 33 - 36 45 - 49 52 - 57 71 - 77 80 - 88 109 - 119 115 - 127 156 - 172 159 - 175 216 - 237 282 - 310 393 - 420 455 - 501 617 - 679 682 - 750 925 - 1016 966 - 1062 1310 - 1441 1360 - 1496 1844 - 2027 LUBRICATED lbf-ft Nm 10 - 13 14 - 17 18 - 25 25 - 33 37 - 41 50 - 55 58 - 64 79 - 86 90 - 99 122 - 134 128 - 141 174 - 191 180 - 198 244 - 268 315 - 347 427 - 470 501 - 550 679 - 745 746 - 821 1012 - 1113 1083 - 1191 1469 - 1613 1509 - 1660 2046 - 2250

DRY LUBRICATED COARSE THREAD lbf-ft Nm lbf-ft Nm 1/4" - 20 7- 8 10 - 11 8 - 10 11 - 13 5/16" - 18 14 - 18 19 - 24 10 - 15 13 - 20 3/8" - 16 31 - 34 42 - 46 23 - 25 31 - 34 7/16" - 14 49 - 54 66 - 73 37 - 41 50 - 55 1/2" - 13 75 - 83 102 - 112 57 - 63 77 - 85 9/16" - 12 109 - 120 148 - 162 82 - 90 111 - 122 5/8" - 11 150 - 165 204 - 223 113 - 124 152 - 168 3/4" - 10 266 - 293 360 - 397 200 - 220 271 - 298 7/8" - 9 394 - 433 535 - 586 296 - 326 402 - 441 1" - 8 591 - 649 802 - 879 443 - 489 601 - 663 1 1/8" - 7 794 - 873 1077 - 1183 596 - 656 808 - 889 1 1/4" - 7 1120 - 1232 1519 - 1670 840 - 924 1139 - 1252 FINE DRY LUBRICATED lbf-ft Nm lbf-ft Nm THREAD 1/4" - 28 9 - 10 12 - 13 9 - 10 12 - 13 5/16" - 24 17 - 22 23 - 29 16 - 20 21 - 27 3/8" - 24 35 - 39 48 - 53 26 - 29 35 - 39 7/16" - 20 55 - 61 75 - 83 41 - 45 56 - 61 1/2" - 20 85 - 94 116 - 127 64 - 70 87 - 95 9/16" - 18 121 - 133 164 - 180 91 - 100 124 - 135 5/8" - 18 170 - 187 231 - 253 128 - 141 174 - 191 3/4" - 16 297 - 327 403 - 443 223 - 245 303 - 332 7/8" - 14 434 - 477 589 - 646 326 - 359 442 - 486 1" - 14 646 - 711 876 - 965 484 - 534 657 - 724 1 1/8" - 12 891 - 980 1208 - 1328 668 - 735 906 - 996 1 1/4" - 12 1240 - 1364 1682 - 1849 931 - 1024 1262 - 1387

METRIC

METRIC BOLT TORQUE SPECIFICATIONS SIZE

CLASS 4.8 LUBRICATED DRY Nm lbf-ft Nm lbf-ft

CLASS 8.8 OR 9.9 LUBRICATED DRY Nm lbf-ft Nm lbf-ft

CLASS 10.9 LUBRICATED DRY Nm lbf-ft Nm lbf-ft

CLASS 12.9 LUBRICATED DRY Nm lbf-ft Nm lbf-ft

M6 M8 M10

4.8 12.0 23.0

3.5 8.5 17.0

6.0 15.0 29.0

4.5 11.0 21.0

9.0 22.0 43.0

6.5 16.0 32.0

11.0 28.0 55.0

8.5 20.0 40.0

13.0 32.0 63.0

9.5 24.0 47.0

17.0 40.0 80.0

12.0 30.0 60.0

15.0 37.0 75.0

11.5 28.0 55.0

19.0 47.0 95.0

14.5 35.0 70.0

M12 M14 M16

40.0 63.0 100.0

29.0 47.0 73.0

50.0 80.0 125.0

37.0 60.0 92.0

75.0 120.0 190.0

55.0 88.0 140.0

95.0 150.0 240.0

70.0 110.0 175.0

110.0 175.0 275.0

80.0 130.0 200.0

140.0 225.0 350.0

105.0 165.0 225.0

130.0 205.0 320.0

95.0 150.0 240.0

165.0 260.0 400.0

120.0 190.0 300.0

M18 M20 M22

135.0 190.0 260.0

100.0 140.0 190.0

175.0 240.0 330.0

125.0 180.0 250.0

260.0 375.0 510.0

195.0 275.0 375.0

330.0 475.0 650.0

250.0 350.0 475.0

375.0 530.0 725.0

275.0 400.0 540.0

475.0 675.0 925.0

350.0 500.0 675.0

440.0 625.0 850.0

325.0 560.0 460.0 800.0 625.0 1,075.0

410.0 580.0 800.0

M24 M27 M30

330.0 490.0 675.0

250.0 360.0 490.0

425.0 625.0 850.0

310.0 650.0 450.0 950.0 625.0 1,300.0

M33 900.0 M36 1,150.0

475.0 825.0 600.0 925.0 675.0 1,150.0 850.0 1,075.0 800.0 1,350.0 1,000.0 700.0 1,200.0 875.0 1,350.0 1,000.0 1,700.0 1,250.0 1,600.0 1,150.0 2,000.0 1,500.0 950.0 1,650.0 1,200.0 1,850.0 1,350.0 2,300.0 1,700.0 2,150.0 1,600.0 2,700.0 2,000.0

675.0 1,150.0 850.0 1,750.0 1,300.0 2,200.0 1,650.0 2,500.0 1,850.0 3,150.0 2,350.0 2,900.0 2,150.0 3,700.0 2,750.0 850.0 1,450.0 1,075.0 2,250.0 1,650.0 2,850.0 2,100.0 3,200.0 2,350.0 4,050.0 3,000.0 3,750.0 2,750.0 4,750.0 3,500.0

TORQUECHARTGENERAL.XLS

3.26

Tigercat M760 Mulcher

Lubrication and Maintenance

ELECTRICAL SCHEMATIC - SHEET 1 OF 6

M760-030.PLT 11834BR6

3.27

Tigercat M760 Mulcher

Lubrication and Maintenance

ELECTRICAL SCHEMATIC - SHEET 2 OF 6

M760-030.PLT 11834BR6

3.28

Tigercat M760 Mulcher

Lubrication and Maintenance

ELECTRICAL SCHEMATIC - SHEET 3 OF 6

M760-032.PLT 11834BR6

3.29

Tigercat M760 Mulcher

Lubrication and Maintenance

ELECTRICAL SCHEMATIC - SHEET 4 OF 6

M760-033.PLT 11834BR6

3.30

Tigercat M760 Mulcher

Lubrication and Maintenance

ELECTRICAL SCHEMATIC - SHEET 5 OF 6

M760-034.PLT 11834BR6

3.31

Tigercat M760 Mulcher

Lubrication and Maintenance

ELECTRICAL SCHEMATIC - SHEET 6 OF 6

M760-035.PLT 11834BR6

3.32

Tigercat M760 Mulcher

Lubrication and Maintenance Rev 2

July 2002

Pressure (PSI)

Engine RPM

Additional Info

675 550

1000 1000

PRESSURE / SPEED SETTINGS - M760 Row Ref. Location 1 2

Pilot Manifold (7875B) Pressure Relief Valve Pressure Reducing Valve

3 4 5 6

Travel Pump (AP116) Charge Pressure Relief Valve High Pressure Relief (B-Side) High Pressure Relief (A-Side) Pump P.O.R.

340(370) 5650(5700) 5650(5700) 5000(5050)

2100 2100 2100 2100

Travel Motor (AQ075) X 2 Pump P.O.R. Motor "X" Port, Reverse Foot Pedal Motor "X" Port, Forward Foot Pedal Motor P.O.R. (/w Forward Foot Pedal at 135 psi)

M1

4000(4025) 125 135 2000(2500)

2100 2100 2100 2100

Hold for 15 sec Hold for 15 sec both motors

Motor P.O.R. (/w Reverse Foot Pedal at 125 psi) Motor P.O.R. (/w Forward Foot Pedal at 135 psi)

M1 M1

800 or less 2000(2500) or less

2100 2100

both motors both motors

340(370) 340(370) 2000(2500) 5000(5050)

2100 2100 2100 2100

Hold for 15 sec Hold for 15 sec both motors

7 8 9 10 11 12 13 14 15 16 17 18

Motor "X" Port, Reverse Foot Pedal Motor "X" Port, Forward Foot Pedal Motor P.O.R. Pump P.O.R.

19 20 21 22

Fan Pump (AP086) Charge Pressure Pressure Relief High Pressure Relief Forward and Reverse Maximum Speed Forward (top displacement limiter) Maximum Speed Reverse (bottom displacement limiter)

295 4700 non-adjustable X=0.31 inches (8mm) X=0.27 inches (7mm)

1000 1000 2100 2100

23 24 25 26

Steer Circuit Steer Valve Main Relief (AU005) Steer Priority Valve (AT079) Steer Right Port Relief (AT078) Steer Left Port Relief (AT078)

2500 2355 3325 non-adjustable 3325 non-adjustable

2100 1000 1000 1000

27 28 29 30 31 32 33

Cutter Pump (AP085) Charge Pressure Relief Valve · P.O.R. Forward · P.O.R. Reverse · High Pressure Relief Forward · High Pressure Relief Reverse Hot Oil Flushing Valve (AU072) Accumulator, Low Pressure Side

350 5000 2500 5500 non-adjustable 3000 non-adjustable 320 225 nitrogen gas

1000 1000 1000 1000 1000 2100

34 35 36 37 38 39 40

Boom Valve (8737B) Main Relief Tilt In Port Relief Tilt Out Port Relief Mulch Deflector Door Open Port Relief Mulch Deflector Door Close Port Relief Boom Up Port Relief Boom Down Port Relief

2500 2900 2900 1000 1000 2900 2200

2100 1000 1000 1000 1000 1000 1000

M3 M2 M1

G

Important Notes: 1) All adjustments to be made with hydraulic oil temperature at 120°F - 140°F 2) Use Boom Lift Lock Support 4128A when working under boom 3) Use Steering Articulation Lock Bar 7067A when working on steering PressureSet.xl

3.33

1250 fan rpm 900 fan rpm

Tigercat M760 Mulcher

Lubrication and Maintenance

3.34