Tigercat Bunching Felling Saw OPERATING & SERVICE MANUAL - PDF DOWNLOAD

OPERATING AND SERVICE MANUAL Tigercat Bunching/Felling Saw ISSUE 6.0, JANUARY 2006

TABLE OF CONTENTS SECTION INTRODUCTION .............................................................................................................. III NON-APPROVED FIELD PRODUCT CHANGES .......................................................... IV SAFETY ............................................................................................................................ 1 USING HIGH SPEED DISC SAWS SAFELY ......................... APPENDIX TO SECTION 1 OPERATING, SERVICE AND MAINTENANCE ................................................................ 2

SAW-SM00

Bunching/Felling Saw Available Literature Operator and Maintenance Manual (This Manual), English ........ Part No. 8931A Operator and Maintenance Manual, Portuguese ...................... Part No. 23511A Operator and Maintenance Manual, Spanish ........................... Part No. 20489A Parts Catalog, DW5000 ............................................................... Part No. 7974A Parts Catalog, DT5000 ................................................................. Part No. 8137A Parts Catalog, ST5400 ............................................................... Part No. 15457A Parts Catalog, DW5500 ............................................................. Part No. 13058A Parts Catalog, DT5500 ............................................................... Part No. 13059A Parts Catalog, DW5600 ............................................................... Part No. 6723A Parts Catalog, SW5700 ............................................................. Part No. 13055A Parts Catalog, ST5700 ............................................................... Part No. 11941A Using High Speed Disc Saws Safely .................................................... SFB-001

Tigercat

®

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

Tigercat Bunching/Felling Saw

Introduction

ii

Tigercat Bunching/Felling Saw

INTRODUCTION An Operator and Maintenance manual and a Parts catalog are provided by Tigercat to assist the dealer, customer and operator in becoming familiar with the features of the Tigercat Bunching and Felling Saws serial numbers: DW5001 DW5002 DT5001 DT5002 SW5401 ST5401 DW5501 DT5501 DW5601 DW5602 DW5603 SW5701 SW5702 ST5701 ST5702

DW5001 1001-1049 DW5002 1051-1095, 501096 & UP DT5001 1003-1033 DT5002 1050-1072, 501145 & UP 541001 & UP 541001 & UP 551501 & UP 551501 & UP DW5601 1001-1144 DW5602 1045-1050, 561151-561349 561351 & UP 571001 - 571499 572001 & UP 571001 - 571499 572001 & UP

The Operator and Maintenance manual will assist the operator with the techniques of proper and safe operation of the Bunching and Felling Saws. It contains important information regarding the safe operation of the saw head, a preventive maintenance schedule and servicing procedures to ensure optimum felling performance. Also included are disassembly and assembly instructions.

Section 1 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.

The operator of this equipment must be made aware of the fact that; The safety of the people on the ground i.e., workers or bystanders is the responsibility of the machine operator.

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

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

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

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

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

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

Tigercat Industries Inc. iii

Tigercat Bunching/Felling Saw

Introduction

NON-APPROVED FIELD PRODUCT CHANGES Changes of any kind made to this Tigercat product could affect the product's ability to perform as originally intended. The product's integrity, stability and safety could be at serious risk.

IT IS Tigercat POLICY THAT NO CHANGES ARE TO BE MADE TO ITS PRODUCTS INCLUDING DELETIONS OR ADDITIONS OTHER THAN A Tigercat APPROVED OPTION FITTED IN THE FACTORY APPROVED MANNER. Official approval to make changes or install options is only as follows: i)

The relevant options for that product must be shown or listed on current Tigercat documentation or literature such as a printed specification sheet, price list, parts manual, or product literature issued by Tigercat.

ii)

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

Authorization by any other person is unacceptable.

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

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

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

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

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

Tigercat Industries Inc.

iv

Tigercat Bunching/Felling Saw SECTION 1 - SAFETY JANUARY 2006

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

Read and understand all manuals for any attachment or accessories.

CONTENTS - SECTION 1 DURING OPERATION ................................................................................... 1.5 EXHAUST FUMES ......................................................................................... 1.9 FELLING TREES ........................................................................................... 1.6 FIRE PREVENTION ..................................................................................... 1.10 FIRE PREVENTION GUIDELINES .......................................................... 1.11 WHAT ELSE TO DO BEFORE YOU EXPERIENCE A FIRE ................... 1.12 WHAT TO DO AFTER A FIRE ................................................................. 1.13 WHAT TO DO IN CASE OF A MACHINE FIRE ....................................... 1.12 FIRST AID ...................................................................................................... 1.4 FLUID LEAKS ................................................................................................ 1.8 HYDRAULIC PRESSURE HAZARD .............................................................. 1.9 LOOSE CLOTHING HAZARD ....................................................................... 1.9 PROTECTIVE CLOTHING ............................................................................. 1.3 SAFETY PRECAUTIONS, GENERAL ........................................................... 1.3 SAFETY PRECAUTIONS, OPERATING ....................................................... 1.4 SAFETY PRECAUTIONS, SERVICING ......................................................... 1.8 SAFETY SYMBOLS ....................................................................................... 1.2 SEPARATION DISTANCE ............................................................................. 1.3 SIGNAL WORDS ........................................................................................... 1.2 VENTILATION ................................................................................................ 1.9

SAW-SM01

Tigercat Bunching/Felling Saw

Safety

SAFETY SYMBOLS

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

Follow the instructions in the safety message.

Understanding Signal Words

DANGER DANGER identifies the most serious hazards where failure to follow listed procedures would result in a high probability of death or serious injury.

WARNING WARNING denotes a hazard exists which can result in serious injury or death if proper precautions are not taken.

CAUTION CAUTION is used in areas where failure to follow listed procedures may cause personal injury, component damage or subsequent malfunction.

IMPORTANT IMPORTANT is used to focus attention on items that should be checked, controlled, adjusted or cleaned to ensure the efficiency and long term operation of the machine.

1.2

Tigercat Bunching/Felling Saw

Safety

GENERAL SAFETY PRECAUTIONS

WARNING Before using the saw blade guard and locking bolt the engine must be shutdown, the saw blade must have come to a complete stop and the felling head must be supported.

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.

The guard must be installed when working on the saw motor hydraulic circuit or when the saw head is not being used. Refer to SAW BLADE GUARD AND LOCKING PIN SECTION 2 of THIS MANUAL for instructions on the proper use of this safety device.

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

Follow all instructions from safety inspector and supervisors.

WARNING Before using the saw blade lock pin the engine must be shutdown, the saw blade must have come to a complete stop and the felling head must be supported.

The saw blade lock pin must be used for all maintenance procedures requiring access to the exposed portion of the blade and teeth, such as saw tooth replacement and saw tooth sharpening. Refer to SAW BLADE LOCK PIN in SECTION 2 of THIS MANUAL for instructions on the proper use of this safety device.

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

Do not let an untrained person operate the machine.

KEEP BACK 500 FEET When approaching an operating machine on foot, stay at least 500 feet (150M) away until the operator recognizes your presence. Make sure that all harvesting equipment is shut down before advancing to the machine.

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

Use recommended protective clothing and safety devices such as 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.

Always avoid the discharge side of a felling sawhead. A sawhead's high-velocity discharge of debris requires a safe separation distance.

1.3

Tigercat Bunching/Felling Saw

Safety

GENERAL SAFETY PRECAUTIONS continued

•

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.

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

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

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.

Inspect the machine daily for signs of damage, unusual wear, fluid leaks, or faulty operation.

Repair or replace malfunctioning parts and systems immediately.

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

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.

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

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.

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

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

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

Maintain a distance of 10 ft. (3m) between the machine or boom and any power line carrying up to 50,000 volts or less.

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

Powerlines carrying more than 50,000 volts require a safety distance of 10 ft. (3m) plus 1/2 inch (10mm) for each addition 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.

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

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

•

If these are found, Do Not Touch!!!

•

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

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

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

1.4

Tigercat Bunching/Felling Saw

OPERATING SAFETY PRECAUTIONS

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

Never operate on STEEP slopes.

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

NEVER travel across a STEEP slope or side hill:

Read and understand "Using high speed disc saws safely" section of this book (or Tigercat safety bulletin No. SFB-001).

Read, understand and follow all operating and general safety precautions specified in this manual. Remember at all times that the disc saw blade at operational speed carries a tremendous amount of stored energy. Flying chips or other debris can cause serious injury. DO NOT APPROACH THE FELLING HEAD UNLESS THE DISC SAW BLADE HAS COME TO A COMPLETE STOP AND THE ENGINE HAS BEEN SHUT DOWN.

•

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

•

As logs are added to the accumulator pocket the handling and the stability of the machine will change.

•

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

•

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

•

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

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

If saw guard has been installed DO NOT remove until at the cutting site. Remove guard before starting engine.

Sound the machine horn before starting the machine.

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

Do not turn on saw blade until machine is at cutting site.

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

During operation of the disc saw felling head, all personnel not in the cab of the machine should REMAIN AT LEAST 500' (153M) AWAY AND NEVER CROSS IN FRONT OF THE SAW OPENING. All observers should stand on the opposite side of the machine to where chips are being directed from the saw opening.

Always wait until disc saw achieves full speed before proceeding to cut. Turn saw controls on only when engine is at idle.

1.5

Tigercat Bunching/Felling Saw

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

OPERATING SAFETY PRECAUTIONS continued FELLING TREES Pieces of wood, debris from the ground and even teeth separating from the saw blade become potentially dangerous missiles when thrown from these machines.

When backing away from a cut, watch out for obstacles in your path.

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

Debris shoots away from the cutting disc at very high speed. The debris pattern gets wider as it gets further away from the machine.

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

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

Ensure that all saw tooth retaining bolts are at correct torque value.

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

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

Always replace saw tooth retaining bolts when replacing saw teeth.

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

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

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

As debris is always being released from the saw housing, the operator must remain in the cab until the blade has stopped rotating completely.

Shut down machine immediately if vibration occurs during cutting.

Run saw disc only at recommended cutting speed.

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

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

Identify your approach to the tree before making it.

Know where your co-workers are. Make sure that they are always out of harms way before beginning the cut.

Do not over load felling head.

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

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

Be alert for dead or decaying trees. Tops can break off while cutting.

Operate so that the chip discharge area of the felling head is not directed at people, livestock, houses, buildings, roads or other machines.

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

When making the cut, properly position felling head in front of tree and have saw blade running at full rpm.

Use only prearranged and approved signalling practices.

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

1.6

Tigercat Bunching/Felling Saw

Safety

OPERATING SAFETY PRECAUTIONS continued When parking the machine; •

Park on level ground only and engage the swing brake.

•

Lower felling attachment onto level ground.

•

Stop the engine and relieve any hydraulic pressure trapped in the system.

CAREFULLY INSPECT THE CONDITION OF THE SAW BLADE AND TEETH at the start of every shift and immediately following contact with a rock or other foreign material.

Check for fatigue cracks in the teeth and saw blade and replace or repair any defective saw components.

Check tooth fastener torques daily.

SHUT SAW OFF IMMEDIATELY IF AN IMBALANCE OCCURS. Do not operate saw blade in an unbalanced condition - repair as necessary to achieve balanced condition.

Never operate the saw blade at a higher speed than the maximum upper limit.

1.7

Tigercat Bunching/Felling Saw

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

SERVICING SAFETY PRECAUTIONS

Conduct maintenance inspections at least as frequently as recommended in the preventative maintenance schedule in this book.

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

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

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 current does not pass through bearings, especially the pivot bearing.

Also, the battery positive terminal must be disconnected.

Install saw guard.

WARNING Before using the saw blade guard and locking bolt the engine must be shutdown, the saw blade must have come to a complete stop and the felling head must be supported.

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

The guard must be installed when working on the saw motor hydraulic circuit or when the saw head is not being used. Refer to SAW BLADE GUARD AND LOCKING PIN SECTION 2 of THIS MANUAL for instructions on the proper use of this safety device.

WARNING Before using the saw blade lock pin the engine must be shutdown, the saw blade must have come to a complete stop and the felling head must be supported.

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.

The saw blade lock pin must be used for all maintenance procedures requiring access to the exposed portion of the blade and teeth, such as saw tooth replacement and saw tooth sharpening. Refer to SAW BLADE LOCK PIN in SECTION 2 of THIS MANUAL for instructions on the proper use of this safety device.

1.8

Tigercat Bunching/Felling Saw

Safety

SERVICING SAFETY PRECAUTIONS continued

WARNING Failure to follow these instructions could result in serious injury or death from crushing.

For wheel feller bunchers:Always install boom lift lock before working on or around machine with boom raised.

Always install 'T' handle retainer bolt.

Pressure can be maintained in a hydraulic system long after the power source and pump have been shut down. Lower the felling head to the ground and relieve trapped pressure (from accumulatorwhen installed) by operating brake pedal and/or joystick several times before performing work on components, or disconnecting any hoses.

Use only to support boom and felling head.

Do not use to set hydraulics pressures.

Always wear proper safety equipment such as safety glasses and gloves during blade service.

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

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

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

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

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.

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.

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

Never stand on the felling head butt plate, either with the clamping arms open or closed.

When performing required hydraulic checks and blade speed adjustments. Install the saw blade guard.

NEVER SERVICE BLADE OR ANY PART OF FELLING HEAD WITH ENGINE RUNNING.

As with any attachment device NEVER ACCESS THE MACHINE UNDER THE ATTACHMENT in the raised position.

1.9

Tigercat Bunching/Felling Saw

Safety

SERVICING SAFETY PRECAUTIONS continued The saw blade is very heavy. Use a lifting device of suitable capacity when moving the blade.

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.

1.10

Tigercat Bunching/Felling Saw

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, charge air cooler and A/C condenser core to prevent overheating of the engine and hydraulics.

Refer to CLEANING A/C CONDENSER AND COOLING ASSEMBLY in SECTION 2 of the MACHINE 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 could have re-positioned itself onto the engine and exhaust parts due to wind turbulance 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.

Continued on page 12

1.11

Tigercat Bunching/Felling Saw FIRE PREVENTION continued

Safety WHAT ELSE TO DO BEFORE YOU EXPERIENCE A FIRE •

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

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

•

Ensure that your fire suppression system is charged and functional.

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

•

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

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

•

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

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

•

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.

Continued from page 11

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.

*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.

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 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.

1.12

*

Tigercat Bunching/Felling Saw

Safety •

FIRE PREVENTION continued •

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 machine components or debris in the area.

The dry chemical fire extinguisher should be used first, followed by a pressurized water system**, if available.

•

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.

•

20229A

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 at a safe distance, 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 occured. 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.

•

Inspect all extinguishers and water systems not used in fighting the fire for possible damage. Return extinguishers and water systems to a functional state if applicable.

TYPICAL FIRE EXTINGUISHER ACCESS HOLE

•

If you are unable to open the access door(s), but can safely reach the 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.

*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.

**NOTE: Water mixing with dry chemical powder forms an acidic paste that will damage surfaces and wiring. See fire suppression systems manual for proper cleanup procedures.

1.13

Tigercat Bunching/Felling Saw

Safety

1.14

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:

Tigercat

®

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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using high speed disc saws safely

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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.

3

using high speed disc saws safely

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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.

4

using high speed disc saws safely

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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.

Tigercat

®

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

®

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.

8

using high speed disc saws safely

Tigercat

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

9

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using high speed disc saws safely Comments and Instructions cont.

Tigercat

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

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

SLAB

•

SLAB

• FE

ED

IN

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

TH DIR ROW EC TIO N

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

FIGURE 8

THROW ENGAGEMENT DISTANCE FELLING HEAD MOVING INTO SLAB/LOG

®

SLAB

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

• •

FIGURE 8b SIDE VIEW

FEED IN

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

10

FIGURE 8c TOP VIEW

using high speed disc saws safely Comments and Instructions cont.

Tigercat

®

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

13

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.

15

using high speed disc saws safely

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16

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Tigercat Bunching/Felling Saw SECTION 2 - OPERATING, SERVICE AND MAINTENANCE JANUARY 2006

CONTENTS - SECTION 2 BUTT PLATE REPLACE (BOLTED) - MODELS 5001 & 5601 ON WHEEL ............................... 2.61 REPLACE (WELDED) MOD. 5000, 5400, 5500, 5600, 5700 .............................. 2.54 BUTT PLATE AND POCKET FLOOR REPLACE MODEL 5000, 5400, 5500, 5600 ........................................................ 2.58 FELLING TECHNIQUES .............................................................................................

DRIVE TO TREE MODEL NOS. DW5000/5500/5600 ...........................................

SWING AND BOOM TO TREE, MODEL NO. ST5400 ...........................................

SWING AND BOOM TO TREE, MODEL NO. ST5700 ...........................................

2.6 2.7 2.8 2.9

INITIAL START-UP OF A NEW SAW HEAD ............................................................ 2.11 OPERATING PRINCIPAL ........................................................................................... 2.3 PREVENTIVE MAINTENANCE SCHEDULE LUBRICATION POINTS MODEL DT5000 SAW ....................................................................................... 2.17 MODEL ST5400 SAW ....................................................................................... 2.19 MODEL ST5700 SAW ....................................................................................... 2.21 MODEL SW5700 SAW ...................................................................................... 2.23 MODELS DW5000, DW5500 & DW5600 ......................................................... 2.15 NEW SAW MAINTENANCE ................................................................................. 2.11 FIRST 50-100 HOUR INSPECTION AND SERVICE REPORT ......................... 2.11 INITIAL PRE-DELIVERY INSPECTION ............................................................. 2.11 INITIAL START-UP OF A NEW SAW HEAD ...................................................... 2.11 SCHEDULED MAINTENANCE ............................................................................. 2.13 EVERY DAY ....................................................................................................... 2.13 EVERY WEEK ................................................................................................... 2.13 EVERY 175 HOURS .......................................................................................... 2.13 EVERY 500 HOURS .......................................................................................... 2.13 SAW BLADE BLADE SPEED ......................................................................................................

INSPECTING SAW BLADE .................................................................................

INSTALLATION USING CHAIN HOIST AND SLING ...........................................

INSTALLATION USING THREADED RODS ........................................................

REMOVAL METHOD FOR TRACK FELLER BUNCHERS ..................................

REMOVAL METHOD FOR WHEEL OR TRACK FELLER BUNCHERS ..............

SAW BLADE RUNOUT (OR WOBBLE), CHECKING ..........................................

SPECIFICATION CHART ......................................................................................

STOPPING THE SAW BLADE ..............................................................................

TIGERCAT BLADE REMOVAL TOOL KIT ...........................................................

TIGERCAT BLADE SERIES DESIGNATIONS .....................................................

TROUBLE SHOOTING BLADE SPEED ...............................................................

CHECK MOTOR CASE DRAIN FLOW .............................................................

TEST CHECK VALVE ........................................................................................

SAW BLADE GUARD AND LOCKING BOLT ...........................................................

SAW BLADE LOCK PIN ............................................................................................

SAW DRIVE, HYDRAULIC CHECK MOTOR CASE DRAIN FLOW .................................................................

DESCRIPTION ......................................................................................................

HYDRAULIC SETUP AND ADJUSTMENTS SAW CIRCUIT PRESSURE CHECK ................................................................

SAW SPEED ADJUSTMENT ............................................................................

SET BEGIN OF STROKE ..................................................................................

START-UP PROCEDURE .................................................................................

SCHEMATIC DIAGRAM ........................................................................................

TEST CHECK VALVE ...........................................................................................

2.28 2.38 2.49 2.46 2.47 2.44 2.40 2.28 2.10 2.44 2.28 2.72 2.73 2.72 2.27 2.26 2.73 2.65 2.70 2.68 2.67 2.66 2.65 2.72

Tigercat Bunching/Felling Saw Tigercat Saws

SECTION 2 - OPERATING, SERVICE AND MAINTENANCE Continued from page 1

SAW DRIVE SPINDLE CHECKING SAW DRIVE SPINDLE HOUSING TEMPERATURE .......................

END PLAY ADJUSTMENT ....................................................................................

END PLAY CHECKING PROCEDURE, DETAILED .............................................

END PLAY CHECKING PROCEDURE, EVERY DAY ..........................................

END PLAY DEFINITION .......................................................................................

INSTALLATION .....................................................................................................

PULLER, SAW DRIVE SPINDLE ..........................................................................

REMOVAL .............................................................................................................

SPECIAL TOOL FOR TURNING LOCKNUT ........................................................

SPINDLE ASSEMBLY ILLUSTRATION ................................................................

SPINDLE PULLER COMPONENTS .....................................................................

SAW TEETH INSPECTING .........................................................................................................

REPLACING ..........................................................................................................

ROTATING ............................................................................................................

2.29 2.34 2.31 2.30 2.30 2.52 2.51 2.50 2.50 2.53 2.51 2.36 2.42 2.41

TORQUE CHART ...................................................................................................... 2.24 TORQUE SPECIFICATIONS, GENERAL ................................................................. 2.25 WRIST ASSEMBLY - 110 DEGREES ADJUST OIL FLOW .............................................................................................. 2.84 CYLINDER ATTACHMENT POINTS .................................................................... 2.81 DESCRIPTION ...................................................................................................... 2.80 HYDRAULIC CIRCUIT DESCRIPTION ................................................................ 2.82 SCHEMATIC DIAGRAM ........................................................................................ 2.83 WRIST ASSEMBLY ............................................................................................... 2.81 WRIST CYCLE TIMES .......................................................................................... 2.84 WRIST ASSEMBLY - 30 DEGREES ........................................................................ 2.74 ADJUST OIL FLOW .............................................................................................. 2.78 DESCRIPTION ...................................................................................................... 2.74 HYDRAULIC CIRCUIT DESCRIPTION ................................................................ 2.76 SCHEMATIC DIAGRAM ........................................................................................ 2.77 WRIST ASSEMBLY ............................................................................................... 2.75 WRIST CYCLE TIMES .......................................................................................... 2.78 WRIST ASSEMBLY - 340 WRIST ASSEMBLY - 340 DEGREES DESCRIPTION ...................................................................................................... 2.86 HYDRAULIC CIRCUIT DESCRIPTION (TYPICAL) .............................................. 2.88 HYDRAULIC DISTRIBUTION MANIFOLD ............................................................ 2.88 INITIAL START-UP PROCEDURE ....................................................................... 2.90 INSTALL ‘V’ CUP SEAL ONTO WRIST MOTOR SHAFT .................................. 2.104 OUTPUT SHAFT ASSEMBLY ............................................................................. 2.102 OUTPUT SHAFT DISASSEMBLY/ASSEMBLY .................................................. 2.102 SCHEMATIC DIAGRAM ........................................................................................ 2.89 SETTING CROSSLINE RELIEF PRESSURE WRIST SPOOL ON MAIN VALVE ..................................................................... 2.92 WRIST SPOOL ON WRIST/CLAMPS VALVE .................................................. 2.94 SETTING FLOW CONTROL VALVES WRIST SPOOL ON MAIN VALVE ..................................................................... 2.98 WRIST SPOOL ON WRIST/CLAMPS VALVE WITH STOPS ........................ 2.100 WRIST SPOOL ON WRIST/CLAMPS VALVE WITHOUT STOPS ................... 2.96 SPECIAL TOOLS S AVAILABLE FROM TIGERCAT ......................................... 2.105 WRIST ASSEMBLY ............................................................................................... 2.87 WRIST CYCLE TIMES .......................................................................................... 2.96 WRIST BEARING SEAL REPLACEMENT ............................................................. 2.106

2.2

Tigercat Saws OPERATING PRINCIPAL

Operating Instructions SAW CONTROLS

Tigercat saws are high speed continuous motion type disc saw felling heads designed to be more productive by accumulating larger bunches of trees with faster cycle times. Larger felling head bunches makes it easier to build large neatly aligned skidder piles reducing the amount of maneuvering required by the skidder.

All Tigercat carriers (sold with saw attachments) are equipped with the following: • • • • • • •

The harvesting concept employed here is generally referred to as “High speed continuous motion felling”. In the case of DRIVE TO TREE felling, this involves lining up the felling head with the tree and travelling or driving forward with both the clamp and accumulating arms open and the saw blade turning at full speed, and without stopping, continuing to drive into the tree with the saw blade to cut the tree. The butt of the tree slides onto a butt plate, positioned just above the blade, which supports the tree. Immediately after the tree is cut both clamp arms close, transferring the tree to the pocket and holding it secure, as the process repeats itself.

Saw switch Saw pressure gauge (wheel feller bunchers only) Accumulator arm control Clamp arm control Wrist control (track feller bunchers only) Saw control valve Saw pump

The location and type of saw controls varies according to base machine model.

For specific information on saw operating controls refer to SECTION 2 of the base machine OPERATOR’S MANUAL.

In the case of SWING AND BOOM TO TREE felling, the procedure is the same except that the blade is fed into the tree by combining the boom, stick and tilt controls.

The saw blade is a “ high inertia” type blade.

Cutting is done with the inertia (stored energy) in the rotating blade. The hydrostatic drive motor brings the blade back up to speed after each cut is made.

Tigercat saws can be installed on either a wheel (DRIVE TO TREE) or track (SWING AND BOOM TO TREE) type carrier.

2.3

Operating Instructions

Tigercat Saws

Tigercat DOUBLE POST FELLING SAW PART NAMES UPPER HORN STRUCTURE

• ACCUMULATOR ARM

•

FRAME

•

•

• CLAMP ARM

•

• LOG POCKET

• DRIVE SPINDLE (SPLINE ADAPTER, SHAFT AND BEARING)

BUTT PLATE

SAW DRIVE MOTOR (UNDER PROTECTIVE COVER)

•• •

• •

HOUSING SKIRT

•

••

•

SAW BLADE

•

TOOTH

SNOUTS

SKIS SAW30

2.4

Tigercat Saws

Operating Instructions

Tigercat SINGLE POST FELLING SAW PART NAMES UPPER HORN STRUCTURE

LINK

•

CLAMP ARM

•

• •

•

ACCUMULATOR ARM

CLAMP ARM

SAW DRIVE MOTOR AND SPINDLE (UNDER PROTECTIVE COVER)

•

BUTTPLATE SAW HOUSING

•

SAW BLADE

•

•

HOUSING SKIRT

•

• •

• • • SNOUT SAW87

SKIS

2.5

Tigercat Saws

Operating Instructions

TIGERCAT SAW FELLING TECHNIQUES 1.

2.

3.

4.

5.

7. SWING AND BOOM TO TREE: Assuming the tree is within reach, swing the boom around and line up the Before operating any Tigercat Saw read and feling head with the tree, then use a combination of the understand the SAFETY INSTRUCTIONS at the machine's boom, stick and tilt controls (non ER booms) beginning of THIS BOOK. to feed the saw blade through the tree with a smooth Start engine and ensure that hydraulic oil is at horizontal action and at a steady speed. The correct operating temperature. blade feed speed for a 12" tree is approximately 1/2 second.

Ensure that ALL personnel are clear of the cutting area.

Moving the head up or down during the cut will cause the blade to undergo unnecessary stress and it may Turn saw blade ON and bring it up to operating stall before the cut is complete. The correct technique speed: is quickly learned.

It takes approximately 25 to 35 seconds for the Feeding too fast makes a poor cut and stalls the blade. saw blade to reach full speed from the stationary Feeding too slow creates excessive heat. position.

8. As the cut is being made begin to close both the clamp Open both the CLAMP ARM(S) and the and accumulating arms around the tree. Immediately ACCUMULATING ARM(S). after the cut is complete, close the clamp arm(s) tightly.

This will transfer the severed tree into the back of the log storage pocket making room for additional trees.

TILT FELLING HEAD FORWARD 3° TO 5°

IMPORTANT: DO NOT clamp the tree until after the cut is complete.

IMPORTANT: DO NOT hold the clamp arm control switch in the CLOSE position once the tree is pulled into the log storage pocket. It will cause the hydraulic oil temperature to rise and result in hydraulic component wear.

9. To avoid stalling the blade on the stump, raise the felling head as soon as the cut is complete.

SAW36A

NOTE: If stalling does occur part way through the cut, DO NOT move or tilt the head up or down to pry it loose, this could damage the head or bend the blade.

Pull the blade straight back out of the cut and allow the blade to reach full rotational speed before continuing to cut.

DRIVE TO TREE FELLING HEAD POSITION FOR MODELS DW5000/5500/5600

TILT FELLING HEAD FORWARD 3° TO 5°

WARNING Do not leave the operator's cab until the partially cut tree has been felled TO ACCUMULATE ADDITIONAL TREE(S) IN THE LOG STORAGE POCKET:

SAW84

10. Close ACCUMULATING ARM(S) and hold first tree in pocket. Completely open CLAMP ARM(S) and position felling head in front of next tree.

SWING AND BOOM TO TREE FELLING HEAD POSITION FOR MODELS ST5400/5700

6. Place the felling head in the slightly tilted forward position (No more than 5°).

11. Cut second tree and close clamp arm(s).

12. Open the accumulating arm(s). The accumulating arm(s) will slide out from between the first and second tree. Close accumulating arm(s) to hold both trees in the pocket.

7. DRIVE TO TREE: Drive the machine forward toward the tree and feed the saw blade into the tree at a steady speed. The correct blade feed speed for a 12" tree is approximately 1/2 second. 13. Fully open clamp arm(s) and proceed to third tree and repeat steps 11, 12 and 13 until pocket is full.

2.6

Operating Instructions

Tigercat Saws

Tigercat DRIVE TO TREE DOUBLE POST FELLING SAW, MODEL NOS. DW5000/5500/5600 ACCUMULATING ARM

•

3.

CLAMP ARM

2.

•

SAW30

SAW31

2. CUT CONTINUES AND CLAMP ARM (2) BEGINS TO CLOSE ON TREE, IMMEDIATELY FOLLOWED BY ACCUMULATING ARM (3).

1. OPEN BOTH CLAMP AND ACCUMULATING ARMS, ADVANCE TO CUT FIRST TREE.

SAW33

SAW32

4. HOLD FIRST TREE WITH ACCUMULATING ARM, ADVANCE TO CUT SECOND TREE AND CLOSE CLAMP ARM.

3. IMMEDIATELY AFTER COMPLETION OF CUT, BOTH SETS OF ARMS CLOSE ON TREE.

SAW35

SAW34

6. HOLD TWO TREES WITH ACCUMULATING ARM, ADVANCE TO CUT THIRD TREE AND CLOSE CLAMP ARM. REPEAT STEPS (4) & (5) UNTIL LOG POCKET IS FULL.

5. WITH BOTH TREES HELD WITH CLAMP ARM, WITHDRAW ACCUMULATING ARM

2.7

Tigercat Saws

Operating Instructions

Tigercat SWING AND BOOM TO TREE SINGLE POST FELLING SAW, MODEL NO. ST5400

CLAMP ARMS

2.

• •

•

3.

ACCUMULATING ARM

SAW87

SAW88

1. OPEN BOTH CLAMP AND ACCUMULATING ARMS, ADVANCE TO CUT FIRST TREE.

2. CUT CONTINUES AND CLAMP ARMS (2) BEGINS TO CLOSE ON TREE, IMMEDIATELY FOLLOWED BY ACCUMULATING ARM (3).

SAW89

SAW90

3. IMMEDIATELY AFTER COMPLETION OF CUT, BOTH SETS OF ARMS CLOSE ON TREE.

4. HOLD FIRST TREE WITH ACCUMULATING ARM, ADVANCE TO CUT SECOND TREE AND CLOSE CLAMP ARMS.

SAW91

SAW92

6. HOLD TWO TREES WITH ACCUMULATING ARM, ADVANCE TO CUT THIRD TREE AND CLOSE CLAMP ARMS. REPEAT STEPS (4) & (5) UNTIL ACCUMULATION AREA IS FULL.

5. WITH BOTH TREES HELD WITH CLAMP ARMS, WITHDRAW ACCUMULATING ARM

2.8

Operating Instructions

Tigercat Saws

Tigercat SWING AND BOOM TO TREE SINGLE POST FELLING SAW, MODEL NO. ST5700

CLAMP ARMS

• • •

2.

2.

•

3.

3.

ACCUMULATING ARMS

SAW77

SAW76

1. OPEN BOTH CLAMP AND ACCUMULATING ARMS, ADVANCE TO CUT FIRST TREE.

2. CUT CONTINUES AND CLAMP ARMS (2) BEGINS TO CLOSE ON TREE, IMMEDIATELY FOLLOWED BY ACCUMULATING ARM (3).

SAW81

SAW78

3. IMMEDIATELY AFTER COMPLETION OF CUT, BOTH SETS OF ARMS CLOSE ON TREE.

4. HOLD FIRST TREE WITH ACCUMULATING ARMS, ADVANCE TO CUT SECOND TREE AND CLOSE CLAMP ARMS.

SAW83

SAW82

6. HOLD TWO TREES WITH ACCUMULATING ARMS, ADVANCE TO CUT THIRD TREE AND CLOSE CLAMP ARMS. REPEAT STEPS (4) & (5) UNTIL ACCUMULATION AREA IS FULL.

5. WITH BOTH TREES HELD WITH CLAMP ARMS, WITHDRAW ACCUMULATING ARMS

2.9

Tigercat Saws

Operating Instructions

STOPPING THE SAW BLADE WHEN LOCATED IN BUSH CUTTING AREA; To stop the blade from rotating, place throttle control in "IDLE" position. Turn the saw switch to the OFF position and CAREFULLY lower the saw blade onto a stump. This should be done gently to prevent unnecessary loading of the saw blade, saw housing and bearings.

Do not let it "free-wheel" it will take several minutes to come to a complete stop.

WHEN LOCATED IN A SHOP AREA; Place throttle control in "IDLE" position, wait (approximately 30 seconds) for saw blade to slow down sufficiently that a pressure of less than 500 psi shows on the pressure gauge.

Turn the saw switch to the OFF position and wait until the saw blade has stopped turning before shutting the engine off. If the saw blade guard is not installed, cordon off the blade area to protect other personnel in the area.

WARNING Never leave a saw head unattended with the saw blade running, or the boom in the raised position. Always rest the felling head on the ground and stop the blade.

WARNING Never leave the operator's cab until the saw blade has stopped rotating.

WARNING Never shut the engine off until the saw blade has come to a complete stop.

WARNING •

•

•

Before installing or removing saw blade guard or locking bolt, saw must be at a complete stop and engine must be shut down.

Saw guard MUST BE INSTALLED when working on the saw motor hydraulic circuit or when the saw head is not being used.

Refer to individual procedures in THIS MANUAL for proper use of saw blade guard and locking bolt.

2.10

Service and Maintenance

Tigercat Saws

PREVENTIVE MAINTENANCE SCHEDULE FOR Tigercat SAWS NEW SAW MAINTENANCE *INITIAL PRE-DELIVERY INSPECTION:PERFORM THE INITIAL PRE-DELIVERY INSPECTION USING Tigercat FORM NUMBER 5281; "PDI AND 50-100 HOUR INSPECTION REPORT"

*FIRST 50-100 HOUR INSPECTION AND SERVICE REPORT:WITH THE OWNER'S MECHANIC PRESENT, PERFORM AN INSPECTION AND SERVICE ACCORDING TO THE Tigercat FORM NUMBER 5281; "PDI AND 50-100 HOUR INSPECTION REPORT" THIS MUST BE COMPLETED WITHIN THE FIRST 50-100 HOUR TIME FRAME. *IMPORTANT: TO QUALIFY FOR CONTINUED WARRANTY, THIS REPORT MUST BE COMPLETED AND RETURNED TO Tigercat Industries Inc. WARRANTY DEPARTMENT. INITIAL START-UP OF A NEW SAW HEAD

PORT 'M'

The following procedure should be performed whenever a new saw head is installed (or major maintenance has been done to a saw head). This procedure will ensure that the spindle bearings have been properly set before operating the saw under load. Refer also to SAW DRIVE, HYDRAULIC: HYDRAULIC SETUPS AND ADJUSTMENTS: START-UP PROCEDURE and WRIST ASSEMBLY - 340 DEGREES: INITIAL START-UP PROCEDURE (if applicable).

••

MINIMUM DISPLACEMENT ADJUSTING SCREW

DANGER

••

Observe all safety precautions outlined in this manual and the base machine service manual when performing this procedure.

SAW-D01

1. Park machine on firm level ground, lower felling head to the ground, engage parking brake or swing brake (as applicable) and stop engine. Block wheels or tracks. Properly install the saw blade guard using all hardware provided. Guard must be secure.

FRONT VIEW OF MOTOR

SAW SPEED ADJUSTMENT

'X'

2. Ensure hydraulic oil is at operating temperature.

3. If saw blade speed has not yet been set :check saw motor minimum displacement adjusting screw.

TYPICAL 'X' DIMENSION FOR MIN. DISPLACEMENT ADJUSTING SCREW b. Remove the minimum displacement adjusting screw from the side of the motor housing and measure its length.

DIM X

a. Remove saw motor cover.

2.11

Continued on page 12

Service and Maintenance

Tigercat Saws

NEW SAW MAINTENANCE Continued from page 11

12. Check spindle housing temperature. Spindle bearing housing should be roughly the same as hydraulic oil temperature or less.

Maximum temperature should not be higher than 180°F (82°C). If temperature is too high check saw drive spindle assembly end play (as per PDI), check spindle and bearing lubrication and check vent fittings for proper operation. Refer also to SAW DRIVE SPINDLE ~CHECKING SAW DRIVE SPINDLE HOUSING TEMPERATURE in THIS SECTION for more information.

c. Reinstall the minimum displacement adjusting screw and locknut into the motor housing and set Dimension 'X' to 9.5 mm for a 110 mm screw.

For different length screws, measure the length of the screw and add or subtract the difference based on the data given here. d. Reinstall saw motor cover.

13. Place the throttle control in the IDLE position.

Wait for blade to slow down (pressure less than 500 psi) then turn saw switch OFF and wait for blade to come to a complete stop before shutting the engine off.

DANGER Carry out this procedure with care. Make sure that there are no chips or blocks of wood remaining in the saw housing that could be thrown by the rotating blade.

14. Allow spindle bearings to cool before operating the saw under load.

WARNING

15. Spindle bearings are now properly seated.

Never leave the operator's cab until the saw blade has stopped rotating.

16. Continue with hydraulic setup and initial start procedures. Refer also to SAW DRIVE, HYDRAULIC: HYDRAULIC SETUPS AND ADJUSTMENTS and WRIST ASSEMBLY 340 DEGREES: INITIAL START-UP PROCEDURE (if applicable).

WARNING Never shut the engine off until the saw blade has come to a complete stop.

4. Clear area under saw of all loose dirt, stones, wood and debris.

5. Raise saw head 6" off the ground and position wrist in the vertical plane (if applicable).

6. Warn all persons to stay clear of the area, especially the discharge side of saw head.

7. Start engine and place throttle in IDLE position.

8. Turn saw switch ON. 9. Run saw with engine at IDLE for 10 minutes.

10. Slowly increase engine speed to FULL rpm.

11. Run saw with engine at FULL for 10 minutes.

2.12

Service and Maintenance

Tigercat Saws

SCHEDULED MAINTENANCE EVERY DAY:~

EVERY WEEK:~

• Check saw tooth condition and rotate or replace teeth as necessary.

• Perform DAILY service and in addition:~ • Remove drive motor guard and inspect for debris build up around motor. Remove debris and replace guard.

• Check for damage to disc blade.

• Check spindle end play. (0.003"-0.006")

• Inspect saw housing for wear. If a problem is found corrective action should be taken immediately. Repair or replace excessively worn wear liners or wear pads. The wear pad at the saw blade inlet must be maintained to minimize blade and housing wear and possible circulation of large debris.

• Check tooth retaining bolt torques.

• Check saw blade bolt torques.

• Check butt plate bolt torques, where applicable.

• Lubricate clamp arms, accumulator arms, cylinders and links as applicable to saw model. See lubrication chart for number of fittings, purge*

WARNING

• Lubricate upper and lower saw drive spindle bearings (At operating temperature).

The wear liners in the saw housing must be maintained to prevent perforation of the saw housing and possible uncontrolled discharge of debris.

2-fittings, one shot of grease for every hour of operation at each fitting.

IMPORTANT: Use a manual grease gun to prevent damage to seal*.

EVERY 175 HOURS:~

• Lubricate wrist bearing, cylinders and gears where applicable.

• Perform DAILY and WEEKLY service and in addition:~ • Lubricate spindle spline adapter.

1-fitting, eight shots*

• Lubricate tilt cylinder and boom attachment points.

Refer to base machine service manual.

• Lubricate upper and lower saw drive spindle bearings (At operating temperature)

CAUTION When lubricating the upper and lower saw drive spindle bearings, Use a manual grease gun to prevent damage to seal, NEVER use a power grease gun.

2-fittings, until grease purges from vent (relief) fittings.

EVERY 500 HOURS:~ • Perform DAILY, WEEKLY and 175 HOUR service and in addition:~ • Check saw blade rpm

WARNING

• Check all hydraulic pressures.

Pay attention to all safety instructions outlined in section 1 of this manual.

Wear safety gloves at all times when handling and working around the saw blade.

Use recommended safety stands and devices when called for.

Always block wheels or tracks of carrier.

Work on solid ground.

• Inspect saw and boom attachment for damage and repair as necessary.

USE LITHIUM BASED EP2 GREASE CONTAINING * 3% - 5% MOLYBDENUM DISULFIDE.

2.13

Service and Maintenance

Tigercat Saws

LUBRICATION

EVERY DAY

1 2 3 4 5

LUB LUB LUB LUB LUB

EVERY 175 HOURS

ITEM

Refer to the SCHEDULED MAINTENANCE and the following charts and illustrations to determine frequency and location of lubrication points:

LUBRICATION SCHEDULE FOR Tigercat® MODEL DW5000, DW5500 AND DW5600 NUMBER OF LUB. FITTINGS

DESCRIPTION

CLAMP ARM CLAMP ARM CYLINDER ACCUMULATOR ARM ACCUMULATOR ARM CYLINDER LUB SAW DRIVE SPINDLE BEARINGS

2 2 2 2 2 WITH NOTE: A MANUAL GREASE GUN MUST 2 VENT BE USED TO PREVENT DAMAGE TO THE FITTINGS SEAL. DO NOT USE POWER GREASE GUN.

6

REMARKS / LUBRICANT

PURGE WITH LITHIUM BASED EP2 GREASE* LUBRICATE AT OPERATING TEMPERATURE. USE LITHIUM BASED EP2 GREASE*.

DAILY: ONE SHOT FOR EVERY HOUR OF OPERATION FOR EACH FITTING EVERY 175: UNTIL GREASE PURGES FROM VENT FITTINGS.

LUB SPINDLE SPLINE ADAPTER 1 8 SHOTS* * LITHIUM BASED EP2 GREASE CONTAINING 3%-5% MOLYBDENUM DISULFIDE

2.14

Tigercat Saws

Service and Maintenance LUBRICATION POINTS MODELS DW5000, DW5500 & DW5600

TYPICAL BOOM ON WHEEL MACHINE

4

• 3 3 4 1 2 1

'C' 'B' 'A'

DW5600 (EARLY DESIGN 2 LOCATION)

FRAME WELDMENT

SPINDLE SPLINE

•

6 ADAPTER LUB FITTING 2 CLAMP CYL. BEARING

• •

SAWPLT

PLUG

VIEW 'B'

VIEW 'A' UNDERSIDE OF BLADE SAW MOTOR VENT FITTINGS FRAME WELDMENT (SAW DRIVE HOUSING)

SAW72

•

• •

UPPER VENT FITTING

FRAME WELDMENT (SAW DRIVE HOUSING)

• • •

MODEL DW5600 (LATER DESIGN) ONLY

UPPER SPINDLE BEARING LOWER SPINDLE BEARING

5 LOWER VENT FITTING

5

5 LOWER

SPINDLE BEARING

5 UPPER

SPINDLE BEARING

VIEW 'C'

MODEL DW5600 SAW79

SAW80

SAW70

2.15

•

•

•

• •

•

•

VIEW 'B'

2 CLAMP CYL. BEARING

MODEL DW5000 & DW5500 ONLY

EVERY DAY

1 2 3 4 5

LUB LUB LUB LUB LUB

6 7 8 9

EVERY 175 HOURS

ITEM

Tigercat Saws

Service and Maintenance

LUBRICATION SCHEDULE FOR Tigercat® MODEL DT5000 SAW NUMBER OF FITTINGS

DESCRIPTION

CLAMP ARM CLAMP ARM CYLINDER ACCUMULATOR ARM ACCUMULATOR ARM CYLINDER LUB SAW DRIVE SPINDLE BEARINGS

2 2 2 2 2

REMARKS / LUBRICANT

PURGE WITH LITHIUM BASED EP2 GREASE*

LUBRICATE AT OPERATING TEMPERATURE. NOTE: A MANUAL GREASE GUN MUST USE LITHIUM BASED EP2 GREASE*.

BE USED TO PREVENT DAMAGE TO THE DAILY: ONE SHOT FOR EVERY SEAL. DO NOT USE POWER GREASE HOUR OF OPERATION FOR EACH GUN. FITTING EVERY 175: UNTIL GREASE PURGES FROM VENT FITTINGS. LUB SPINDLE SPLINE ADAPTER 1 8-SHOTS* LUB Tigercat 30° WRIST BEARING 4 PURGE* LUB KW WRIST BEARING 4 PURGE* LUB WRIST CYLINDER 2 PURGE* * LITHIUM BASED EP2 GREASE CONTAINING 3%-5% MOLYBDENUM DISULFIDE

2.16

Service and Maintenance

Tigercat Saws 9

LUBRICATION POINTS MODEL DT5000 SAW

9

•

3 3 ALTERNATIVE LOCATION

4 4 1 2

TYPICAL BOOM ON TRACK MACHINE

'C'

1

'B'

'A' SPINDLE SPLINE

FRAME WELDMENT ACCUM. CYLINDER

•

•

PLUG

LOWER VENT FITTING

5 LOWER

SPINDLE BEARING

5 UPPER

SPINDLE BEARING

SAW80

FOR LATER DESIGN DT5000

UPPER VENT FITTING

FRAME WELDMENT (SAW DRIVE HOUSING)

FRAME WELDMENT

•

•

•

• •

•

•

8

•

•

•

4

VIEW 'C'

SAW73

VIEW 'A' UNDERSIDE OF BLADE

8

WRIST BEARING

2 CLAMP CYL. BEARING

SAW85

•

4 ACCUM. CYLINDER

VIEW 'C'

• • 8

8

WRIST

FOR EARLIER DESIGN DT5000 HEADS BEARING (USING KOEHRING WATEROUS WRIST)

VIEW 'B'

SAW71

2.17

8

WRIST BEARING

6 ADAPTER LUB FITTING

SAWPLT

7

EVERY DAY

1 2 3 4 5 6

LUB LUB LUB LUB LUB LUB

EVERY 175 HOURS

ITEM

Tigercat Saws

Service and Maintenance

LUBRICATION SCHEDULE FOR Tigercat® MODEL ST5400 SAW NUMBER OF FITTINGS

DESCRIPTION

CLAMP ARMS CLAMP ARMS CYLINDER CLAMP ARM LINK ACCUMULATOR ARM ACCUMULATOR ARM CYLINDER LUB SAW DRIVE SPINDLE BEARINGS

3 2 2 2 2 2

NOTE: A MANUAL GREASE GUN MUST BE USED TO PREVENT DAMAGE TO THE SEAL. DO NOT USE POWER GREASE GUN.

7 8

LUB

9

LUB

10

LUB

LUB SPINDLE SPLINE ADAPTER WRIST BEARING (30° WRIST) WRIST BEARING (110° WRIST) WRIST BEARING (340° WRIST) WRIST CYLINDER (30° WRIST) WRIST CYLINDERS (110° WRIST) WRIST PINIONS (340° WRIST)

REMARKS / LUBRICANT

PURGE WITH LITHIUM BASED EP2 GREASE* LUBRICATE AT OPERATING TEMPERATURE. USE LITHIUM BASED EP2 GREASE*.

DAILY: ONE SHOT FOR EVERY HOUR OF OPERATION FOR EACH FITTING EVERY 175: UNTIL GREASE PURGES FROM VENT FITTINGS.

1 4 4 2 2 4

8-SHOTS* PURGE* PURGE* 4-SHOTS* EVERY 45° STOP -TO-STOP PURGE* PURGE*

3

10-SHOTS* AT EACH FITTING

* LITHIUM BASED EP2 GREASE CONTAINING 3%-5% MOLYBDENUM DISULFIDE

WRIST BEARING

WRIST PINIONS 3-PLACES

8

10

VIEW 'B' WRIST BEARING LUBRICATION

'B' 9

8

WRIST CYLINDER BEARINGS SAW138

110° WRIST LUBRICATION

WRIST BEARING SAW139

2.18

340° WRIST LUBRICATION

Service and Maintenance

Tigercat Saws LUBRICATION POINTS MODEL ST5400 SAW (WITH 30° WRIST)

9

8

SAW98

SAW97

'A'

LOWER VENT FITTING

6 LOWER

SPINDLE BEARING

UPPER 6 SPINDLE BEARING

UPPER VENT FITTING BEHIND COVER

WRIST BEARING

1 3 2

2

SPINDLE SPLINE ADAPTER LUB FITTING

7 1 4

•

SAW100

5

PLUG

1

5

SAWPLT

VIEW 'A' UNDERSIDE OF BLADE

CLAMP AND ACCUMULATING ARMS LUB POINTS

2.19

EVERY DAY

1 2 3 4 5 6 7

LUB LUB LUB LUB LUB LUB LUB

8 9 10

EVERY 175 HOURS

ITEM

Tigercat Saws

Service and Maintenance

LUBRICATION SCHEDULE FOR Tigercat® MODEL ST5700 SAW NUMBER OF FITTINGS

DESCRIPTION

CLAMP ARMS CLAMP ARMS CYLINDER CLAMP ARMS LINK ACCUMULATOR ARMS ACCUMULATOR ARMS CYLINDER ACCUMULATOR ARMS LINK LUB SAW DRIVE SPINDLE BEARINGS

3 2 2 5 2 2 2

REMARKS / LUBRICANT

PURGE WITH LITHIUM BASED EP2 GREASE*

LUBRICATE AT OPERATING TEMPERATURE. NOTE: A MANUAL GREASE GUN MUST BE USE LITHIUM BASED EP2 GREASE*.

USED TO PREVENT DAMAGE TO THE DAILY: ONE SHOT FOR EVERY SEAL. DO NOT USE POWER GREASE GUN. HOUR OF OPERATION FOR EACH FITTING EVERY 175: UNTIL GREASE PURGES FROM VENT FITTINGS. LUB SPINDLE SPLINE ADAPTER 1 8-SHOTS* Tigercat 30° WRIST BEARING LUB 4 PURGE* LUB WRIST CYLINDER 2 PURGE* * LITHIUM BASED EP2 GREASE CONTAINING 3%-5% MOLYBDENUM DISULFIDE

2.20

Service and Maintenance

Tigercat Saws

LUBRICATION POINTS MODEL ST5700 SAW 10

9

'A'

SAW93

SAW94

'B'

UPPER VENT FITTING BEHIND COVER

UPPER VENT FITTING

WRIST SPINDLE BEARING BEARING

7 UPPER

7

LOWER VENT FITTING

UPPER SPINDLE BEARING

2

7 LOWER

VIEW 'B'

SAW99

SPINDLE BEARING

1

SPINDLE SPLINE ADAPTER LUB FITTING

8 3

4

•

VIEW 'A'

SAWPLT

SAW96

PLUG

UNDERSIDE OF BLADE

4

6

5

4

1

6

5

CLAMP AND ACCUMULATING ARMS LUB POINTS

2.21

EVERY DAY

1 2 3 4 5 6 7

LUB LUB LUB LUB LUB LUB LUB

8

EVERY 175 HOURS

ITEM

Tigercat Saws

Service and Maintenance

LUBRICATION SCHEDULE FOR Tigercat® MODEL SW5700 SAW NUMBER OF FITTINGS

DESCRIPTION

CLAMP ARMS CLAMP ARMS CYLINDER CLAMP ARMS LINK ACCUMULATOR ARMS ACCUMULATOR ARMS CYLINDER ACCUMULATOR ARMS LINK LUB SAW DRIVE SPINDLE BEARINGS

3 2 2 5 2 2 2

REMARKS / LUBRICANT

PURGE WITH LITHIUM BASED EP2 GREASE*

LUBRICATE AT OPERATING TEMPERATURE. NOTE: A MANUAL GREASE GUN MUST USE LITHIUM BASED EP2 GREASE*.

BE USED TO PREVENT DAMAGE TO THE DAILY: ONE SHOT FOR EVERY SEAL. DO NOT USE POWER GREASE HOUR OF OPERATION FOR EACH GUN. FITTING EVERY 175: UNTIL GREASE PURGES FROM VENT FITTINGS. LUB SPINDLE SPLINE ADAPTER 1 8-SHOTS* * LITHIUM BASED EP2 GREASE CONTAINING 3%-5% MOLYBDENUM DISULFIDE

2.22

Service and Maintenance

Tigercat Saws

LUBRICATION POINTS MODEL SW5700 SAW

SAW101

'A'

SAW102

'B' UPPER VENT FITTING BEHIND COVER

UPPER VENT FITTING

7 UPPER

SPINDLE BEARING

7

LOWER VENT FITTING

UPPER SPINDLE BEARING

2

7 LOWER

VIEW 'B'

SAW99

SPINDLE BEARING

1

SPINDLE SPLINE ADAPTER LUB FITTING

8 3

4

•

SAW96

PLUG

4

SAWPLT

VIEW 'A' UNDERSIDE OF BLADE

6

5

4

1

6

5

CLAMP AND ACCUMULATING ARMS LUB POINTS

2.23

Tigercat Saws

Service and Maintenance

TORQUE CHART: LOCATION Saw Blade Mounting bolts Motor Mounting bolts Mounting cap bolts Clamp Arm Stub shaft bolts (earlier design) Stub shaft bolts Stub shaft bolts Stub shaft bolts (earlier design) Stub shaft bolts Pin retaining bolts All Butt Plate Retaining bolts (earlier design only) Retaining bolts (earlier design only) Lower Guard/Ski Retaining bolts Retaining bolts Retaining bolts Retaining bolts Retaining bolts

SAW MODEL

THREAD DIAMETER

ALL

TORQUE (LUBRICATED)

NOTES

lbf-ft

Nm

3/4"-16 UNF GR.8

280-320

380-434

Use anti-seize.

ALL ALL

3/4"-10 UNC GR.8 1/2"-13 UNC GR.8

200-220 80-85

271-298 108-115

Lubricated

5000 5000 5500 5600 5600

5/8"-11 3/4"-10 3/4"-10 5/8"-11 3/4"-10

GR.8 GR.8 GR.8 GR.8 GR.8

160-175 280-310 280-310 160-175 280-310

217-237 380-420 380-420 217-237 380-420

3/4"-10 UNC GR.8 5/8"-11 UNC GR.8

200-220 160-175

271-298 217-237

Lubricated

5000 5600

5/8"-11 UNC GR.8 5/8"-11 UNC GR.8

160-175 160-175

217-237 217-237

Lubricated

5000 5400 5500 5600 5700

5/8"-11 3/4"-10 3/4"-10 3/4"-10 3/4"-10

160-175 280-310 280-310 280-310 280-310

217-237 380-420 380-420 380-420 380-420

As Applic.

UNC UNC UNC UNC UNC

UNC UNC UNC UNC UNC

GR.8 GR.8 GR.8 GR.8 GR.8

TRACK FELLER BUNCHERS ONLY Wrist cylinder, 30° and 110° rotation Pin retainer bolts 3/4"-10 UNC GR.8 280-310 Wrist - 30° and 110° rotation 670-690 Bearing to felling head bolts 1"-14 UNF GR.8 400 + half Bearing to boom adapter locknuts 1 1/8"-12 UNF L9 turn Wrist - 340° rotation Bearing to head bolts 3/4"-16 UNF GR.8 290-310 Bearing to boom adapter bolts 7/8"-14 UNC GR.8 440-460 High torque motor to boom adapter bolts 5/8"-11 UNC GR. 8 160-175 Output shaft assy to boom adapter bolts 5/8"-11 UNC GR. 8 160-175 Std. torque motor to output shaft assy bolts 1/2"-13 UNC GR. 8 80-85

2.24

380-420

Use loctite (red permanent).

Lubricated

Use anti-seize.

908-936 Use anti-seize.

1274-1302 Use anti-seize.

393-420 596-624 217-237 217-237 108-115

Use anti-seize.

Use anti-seize.

Use anti-seize.

Use anti-seize.

Lubricated

Service and Maintenance

Tigercat Saws

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 5 BOLT

GRADE 8 BOLT

IMPERIAL BOLT TORQUE SPECIFICATIONS GRADE 8 BOLTS GRADE 5 BOLTS COARSE THREAD 1/4" - 20 5/16" - 18 3/8" - 16 7/16" - 14 1/2" - 13 9/16" - 12 5/8" - 11 3/4" - 10 7/8" - 9 1" - 8 1 1/8" - 7 1 1/4" - 7 FINE THREAD 1/4" - 28 5/16" - 24 3/8" - 24 7/16" - 20 1/2" - 20 9/16" - 18 5/8" - 18 3/4" - 16 7/8" - 14 1" - 12 1 1/8" - 12 1 1/4" - 12

DRY lbf-ft Nm 11 - 12 15 - 16 20 - 28 27 - 38 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 26 - 30 35 - 40 33 - 36 45 - 49 52 - 57 71 - 77 80 - 88 109 - 119 115 - 127 156 - 172 159 - 175 216 - 237 282 - 310 393 - 420 455 - 501 617 - 679 682 - 750 925 - 1016 966 - 1062 1310 - 1441 1360 - 1496 1844 - 2027 LUBRICATED lbf-ft Nm 10 - 13 14 - 17 18 - 25 25 - 33 37 - 41 50 - 55 58 - 64 79 - 86 90 - 99 122 - 134 128 - 141 174 - 191 180 - 198 244 - 268 315 - 347 427 - 470 501 - 550 679 - 745 746 - 821 1012 - 1113 1083 - 1191 1469 - 1613 1509 - 1660 2046 - 2250

DRY LUBRICATED COARSE lbf-ft Nm lbf-ft Nm THREAD 1/4" - 20 7- 8 10 - 11 8 - 10 11 - 13 5/16" - 18 14 - 18 19 - 24 38275 13 - 20 3/8" - 16 31 - 34 42 - 46 23 - 25 31 - 34 7/16" - 14 49 - 54 66 - 73 37 - 41 50 - 55 1/2" - 13 75 - 83 102 - 112 57 - 63 77 - 85 9/16" - 12 109 - 120 148 - 162 82 - 90 111 - 122 5/8" - 11 150 - 165 204 - 223 113 - 124 152 - 168 3/4" - 10 266 - 293 360 - 397 200 - 220 271 - 298 7/8" - 9 394 - 433 535 - 586 296 - 326 402 - 441 1" - 8 591 - 649 802 - 879 443 - 489 601 - 663 1 1/8" - 7 794 - 873 1077 - 1183 596 - 656 808 - 889 1 1/4" - 7 1120 - 1232 1519 - 1670 840 - 924 1139 - 1252 FINE DRY LUBRICATED lbf-ft Nm lbf-ft Nm THREAD 1/4" - 28 9 - 10 12 - 13 9 - 10 12 - 13 5/16" - 24 17 - 22 23 - 29 16 - 20 21 - 27 3/8" - 24 35 - 39 48 - 53 26 - 29 35 - 39 7/16" - 20 55 - 61 75 - 83 41 - 45 56 - 61 1/2" - 20 85 - 94 116 - 127 64 - 70 87 - 95 9/16" - 18 121 - 133 164 - 180 91 - 100 124 - 135 5/8" - 18 170 - 187 231 - 253 128 - 141 174 - 191 3/4" - 16 297 - 327 403 - 443 223 - 245 303 - 332 7/8" - 14 434 - 477 589 - 646 326 - 359 442 - 486 1" - 12 646 - 711 876 - 965 484 - 534 657 - 724 1 1/8" - 12 891 - 980 1208 - 1328 668 - 735 906 - 996 1 1/4" - 12 1240 - 1364 1682 - 1849 931 - 1024 1262 - 1387

METRIC

ISSUE 2 395

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

2.25

Tigercat Saws

Service and Maintenance

SAW BLADE LOCK PIN

For in-woods maintenance, position the felling head with the base of the head supported on firm level ground. Tilt the head back slightly to allow access to the exposed portion of the blade and teeth.

The saw blade lock pin must be used for all maintenance procedures requiring access to the exposed portion of the blade and teeth, such as saw tooth replacement and saw tooth sharpening.

Before using the saw blade lock pin the engine must be shutdown, the saw blade must have come to a complete stop and the felling head must be supported.

3. Stop the engine and turn the master disconnect switch OFF. 4. Ensure the saw blade has come to a complete stop.

For all other maintenance procedures install the saw blade guard and locking bolt. Refer to SAW BLADE GUARD AND LOCKING BOLT in THIS SECTION. PROCEDURE: 1. Turn the saw OFF and allow saw blade to come to a COMPLETE STOP. DO NOT exit the cab or approach the felling head until the blade is stopped.

2. Park the machine on firm level ground. Block the wheels or tracks. Engage the parking brake or swing brake. Position the saw head vertically and supported on horses or similar devices strong enough to withstand the weight of the saw head.

SAW BLADE LOCK PIN

•• ••

BOLT

SAW145

TYPICAL SAW BLADE LOCK PIN STORAGE LOCATION

5. Remove the saw blade lock pin from its storage location.

BOLT SAW BLADE LOCK PIN

••

•• STORAGE LOCATION

••

•

SAW38

SLOTTED INSPECTION COVER

WARNING Pay attention to all safety instructions outlined in section 1 of this manual.

Wear safety gloves at all times when handling and working around the saw blade.

Use recommended safety stands and devices when called for.

Always block wheels or tracks of carrier.

Work on solid ground.

SAW145

TYPICAL SAW BLADE LOCK PIN INSTALLATION

6. Install the saw blade lock pin in the slotted inspection cover. The saw blade may need to be rotated slightly to allow the pin to engage completely.

2.26

Service and Maintenance

Tigercat Saws

SAW BLADE GUARD AND LOCKING BOLT

CAUTION Wear gloves and keep fingers clear of rotating blade and pinch points. A slowly rotating blade has enough stored energy to crush and cut hands or fingers.

The saw blade guard and locking bolt are to be used for maintenance procedures which do not require access to the exposed portion of the blade and teeth. The saw blade guard and locking bolt are used for any hydraulic pressure or blade speed adjustment procedures.

7. Bolt the saw blade lock pin securely into position with the same bolt provided to hold the pin in its storage location.

Before using the saw blade guard and locking bolt the engine must be shutdown, the saw blade must have come to a complete stop and the felling head must be supported.

8. Perform the maintenance required on the exposed portion of the saw blade and teeth.

Refer to specific maintenance procedures elsewhere in this manual for further instructions and safety information.

For all maintenance procedures which require access to the exposed portion of the blade and teeth the saw blade lock pin must be used.

Refer to SAW BLADE LOCK PIN in THIS SECTION.

9. Remove the saw blade lock pin from the slotted inspection cover and carefully rotate the saw blade to expose a different section of blade.

PROCEDURE:

10. Install the saw blade lock pin in the slotted inspection cover, slightly rotate the blade for full engagement and bolt securely into position.

1. Turn the saw OFF and allow saw blade to come to a COMPLETE STOP. DO NOT exit the cab or approach the felling head until the blade is stopped.

11. Perform the maintenance on this portion of the saw blade.

2. Park the machine on firm level ground. Block the wheels or tracks. Engage the parking brake or swing brake. Position the saw head vertically and supported on horses or similar devices strong enough to withstand the weight of the saw head.

12. Continue to repeat steps 9, 10, and 11 until all maintenance is completed all around the saw blade.

3. Stop the engine and turn the master disconnect switch OFF.

CAUTION DO NOT use this blade lock pin for any hydraulic pressure or blade speed adjustments. The saw blade guard and locking bolt are to be used for any hydraulic pressure or blade speed adjustments. Refer to SAW BLADE GUARD AND LOCKING BOLT in THIS SECTION.

4. Ensure the saw blade has come to a complete stop.

LOCKING BOLT

13. Remove the saw blade lock pin from the slotted inspection cover and install it into its storage location.

• •

14. Bolt the saw blade lock pin securely in the storage location.

SAW 63

SAW BLADE GUARD

BLOCK SAW BLADE

5. Install saw blade guard and block saw blade rotation using the locking bolt provided.

6. Perform the maintenance required. Refer to specific maintenance procedures elsewhere in this manual for further instructions and safety information.

2.27

Tigercat Saws

Service and Maintenance

SAW BLADE SPECIFICATION CHART Head model series

5500 5600 5700

5400

5000

Blade details

Narrow kerf (series 24) Narrow kerf (series 26) Wide kerf (series 13) Wide kerf (series 14) Shankless (series 74)

Blade Tooth diameter thickness (Nominal)

56" - 57"

Narrow kerf (series 24) Narrow kerf (series 26) Wide kerf (series 14) Shankless (series 74)

54"

Narrow kerf (series 24) Narrow kerf (series 26) Wide kerf (series 13) Wide kerf (series 14) Shankless (series 74)

50 1/2"

1 7/8" 1 7/8" 2 5/16" 2 5/16" 2 1/4" 1 7/8" 1 7/8" 2 5/16" 2 1/4" 1 7/8" 1 7/8" 2 5/16" 2 5/16" 2 1/4"

Tooth retaining bolt size

Tooth retaining Blade retaining Blade retaining Blade Maximum bolt torque. bolts bolt torque speed allowable use anti-seize use anti-seize ( ± 25 rpm) saw blade run-out

1/2"-20 UNF X 2 1/4" LG. GR. 8 1/2"-20 UNF X 3" LG. GR. 8 5/8"-18 UNF X 2 1/4" LG. GR. 8 5/8"-18 UNF X 2 1/4" LG. GR. 8 1"-14 UNS X 4 1/2 LG GR. 8 + WASHER 1/2"-20 UNF X 2 1/4" LG. GR. 8 1/2"-20 UNF X 3" LG. GR. 8 5/8"-18 UNF X 2 1/4" LG. GR. 8 1"-14 UNS X 4 1/2 LG GR. 8 + WASHER 1/2"-20 UNF X 2 1/4" LG. GR. 8 1/2"-20 UNF X 3" LG. GR. 8 5/8"-18 UNF X 2 1/4" LG. GR. 8 5/8"-18 UNF X 2 1/4" LG. GR. 8 1"-14 UNS X 4 1/2 LG GR. 8 + WASHER

85lbf-ft/115Nm 85lbf-ft/115Nm 160lbf-ft//217Nm 160lbf-ft//217Nm 500lbf-ft//678Nm 3/4"-16 UNF GR. 8 x 2 1/4" LG. SOC. 85lbf-ft/115Nm Without mounting 85lbf-ft/115Nm flange 160lbf-ft//217Nm 300lbf-ft/405Nm OR 500lbf-ft//678Nm 3/4"-16 UNF GR. 8 x 3 1/2" LG. SOC. 85lbf-ft/115Nm W/mounting flange 85lbf-ft/115Nm 160lbf-ft//217Nm 160lbf-ft//217Nm 500lbf-ft//678Nm

CENTRED WEB SERIES X3

Tigercat saw blades can be identified by checking the blade serial number. The first two digits of the blade serial number represent the blade series number.

OFFSET WEB SERIES X4 AND X6

NEW LOCATION

EARLIER LOCATION SAW-74

•• SERIES NO. DATE CODE K

SAW104

D

BLADE SERIAL NUMBER LOCATION

Tigercat blade series numbers are decoded below. Tigercat BLADE SERIAL NUMBER K

= 1 Wide kerf (2 5/16") = 2 Narrow kerf (1 7/8") = 7 Wide kerf shankless (2 1/4")

D

= 3 Centred web blade = 4 Offset web blade = 6 Offset web blade (modified)

0.100"

1275 rpm

BLADECHART2-R3.XLS 03/05

TIGERCAT BLADE SERIES DESIGNATIONS

•

1150 rpm

EXAMPLE: A series 13 blade uses a wide kerf (2 5/16") and a centred web.

2.28

BLADE PROFILES

Service and Maintenance

Tigercat Saws CHECKING SAW DRIVE SPINDLE HOUSING TEMPERATURE The normal temperature of the spindle bearing housing should be roughly the same as the hydraulic oil operating temperature or less.

The hydraulic oil operating temperature varies by carrier and hydraulic oil type but should be in the range of approximately 120°F to 170°F (48°C to 77°C).

Maximum saw drive spindle housing temperature should not be higher than 180°F (82°C). This maximum temperature may be further limited by the type of grease used, refer to manufacturer's recommendations.

If saw drive spindle housing temperature is too high: •

Check saw drive spindle assembly end play.

Refer to DRIVE SPINDLE END PLAY in THIS SECTION.

•

Check spindle and bearings for proper lubrication.

•

Check vent fittings for proper operation.

CAUTION When lubricating the upper and lower saw drive spindle bearings, Use a manual grease gun to prevent damage to seal, NEVER use a power grease gun.

•

Check for signs of excessive greasing.

•

Check for use of the proper type of grease* * USE LITHIUM BASED EP2 GREASE CONTAINING 3% - 5% MOLYBDENUM DISULFIDE.

•

Check bearings for damage.

•

Check bearing seal for damage.

•

Check saw blade speed. Refer to SAW DRIVE, HYDRAULIC ~ SAW SPEED ADJUSTMENT and SAW BLADE SPEED in THIS SECTION.

•

Check saw blade for damage.

•

Check drive spindle housing for damage.

•

Check saw drive motor.

2.29

Service and Maintenance

Tigercat Saws DRIVE SPINDLE END PLAY DEFINITION End play is a measurement of the internal axial clearance of the drive spindle bearings that is, allowable up and down movement of the spindle.

End play is determined by measuring the axial movement of the drive spindle. Correct end play adjustment will maximize the life of the saw drive components. The recommended end play is 0.003"-0.006" measured when the components are cool for Tigercat spindle bearings.

A "quick" end play check can be performed by following the EVERY DAY CHECKING PROCEDURE. If excessive or NO end play movement is detected, refer to the DETAILED CHECKING PROCEDURE and ADJUSTMENT PROCEDURE in THIS SECTION.

SAW38

be secure. Refer to SAW BLADE LOCK PIN in THIS SECTION for instructions on the proper use of this safety device.

EVERY DAY DRIVE SPINDLE END PLAY CHECKING PROCEDURE: This procedure must be performed when the spindle housing, spindle, and bearings are cool to the touch 10°C to 30°C (50°F to 90°F).

BOLT SAW BLADE LOCK PIN

WARNING Pay attention to all safety instructions outlined in section 1 of this manual.

Wear safety gloves at all times when handling and working around the saw blade.

Use recommended safety stands and devices when called for.

Always block wheels or tracks of carrier.

Work on solid ground.

1. Turn the saw OFF and allow saw blade to come to a COMPLETE STOP. DO NOT exit the cab or approach the felling head until the blade is stopped.

2. Park the machine on firm level ground. Block the wheels or tracks. Engage the parking brake or swing brake. Position the saw head vertically and supported on horses or similar devices strong enough to withstand the weight of the saw head.

3. Stop the engine and turn the master disconnect switch OFF. 4. Ensure the saw blade has come to a complete stop.

STORAGE LOCATION

•

SLOTTED INSPECTION COVER

SAW145

TYPICAL SAW BLADE LOCK PIN INSTALLATION

CAUTION Wear gloves and keep fingers clear of rotating blade and pinch points. A slowly rotating blade has enough stored energy to crush and cut hands or fingers.

6. Wearing gloves, grasp the saw blade and lift up and down several times. Check for any movement. The saw blade is very heavy, do not overstrain.

NOTE: If using the saw blade lock pin care should be taken to ensure that there is no interference between the blade lock pin and saw blade while performing this step.

5. If the saw you are working on is equipped with a saw blade lock pin it must be used for this procedure.

Install the saw blade lock pin using all the hardware provided. The blade lock pin must

••

••

••

7. Rotate the saw blade 1/4 turn and repeat procedure (5) in at least four places.

2.30

Service and Maintenance

Tigercat Saws 8. If excessive or NO end play movement is detected, refer to the DETAILED DRIVE SPINDLE END PLAY CHECKING PROCEDURE and ADJUSTMENT PROCEDURE in THIS SECTION. DETAILED DRIVE SPINDLE END PLAY CHECKING PROCEDURE: This procedure is the most accurate way to measure end play and must be used before doing any end play adjustment. This procedure must be performed when the spindle housing, spindle, and bearings are cool to the touch 10°C to 30°C (50°F to 90°F).

SAW MOTOR RETAINING BOLTS (4) MOTOR MOUNTING CAP RETAINING BOLTS (6) MOTOR MOUNTING CAP

WARNING Pay attention to all safety instructions outlined in section 1 of this manual.

Wear safety gloves at all times when handling and working around the saw blade.

Use recommended safety stands and devices when called for.

Always block wheels or tracks of carrier.

Work on solid ground.

132-16A

SAW DRIVE HOUSING

••

••

••

••

SAW MOTOR RETAINING BOLTS

8. Remove the four saw motor retaining bolts and remove the saw motor. Leave the spline adapter in the top of the spindle (drive shaft).

LEAVE SPLINE ADAPTER IN TOP OF SPINDLE

LOCKNUT

• •

1. Turn the saw OFF and allow saw blade to come to a COMPLETE STOP. DO NOT exit the cab or approach the felling head until the blade is stopped.

2. Park the machine on firm level ground. Block the wheels or tracks. Engage the parking brake or swing brake. Position the saw head vertically and supported on horses or similar devices strong enough to withstand the weight of the saw head.

• INNER RACE OF UPPER BEARING

3. Stop the engine and turn the master disconnect switch OFF.

SAW 46

SAW DRIVE HOUSING

SPLINE ADAPTER AND LOCKNUT

9. Remove the six motor mounting cap retaining bolts and remove the mounting cap. Note grease fitting location for reassembly.

4. Ensure the saw blade has come to a complete stop.

5. Properly install the saw blade guard using all hardware provided. Guard must be secure.

6. Remove the saw motor guard and thoroughly clean the area.

7. Disconnect all hydraulic hoses from the saw motor. Plug all hose ends and motor ports to prevent dirt getting into the system. Label the hose ends for easy reassembly.

2.31

Tigercat Saws If this procedure is being carried out WITHOUT A BLADE installed continue on with STEP 10.

If a blade IS INSTALLED go to STEP 16.

10. Use the SPECIAL END PLAY ADJUSTMENT TOOL KIT available from Tigercat.

For all 5000 series heads use part number 18364A, includes tool and all hardware).

For all 5400, 5500, 5600 and 5700 series heads use part number 14613A, includes tool and all hardware).

Service and Maintenance ADJUSTMENT TOOL RETAINING BOLTS (QTY 3)

3

•

• 8

• •

BOLT

4 END PLAY BOLT

•

1 ADJUSTMENT TOOL

6

INNER NUT

9 LOCKNUT

DRIVE HOUSING

2

•

11 UPPER

BEARING

•

Position the end play tool (1) over the drive housing (2) and install using 3 bolts (3). Thread the end play bolt (4) into the end of drive spindle (5). It may be necessary to adjust the inner nut (6) and outer nut (7) to allow installation of the end play bolt (4).

Install a single bolt (8) through the end play tool and into the locknut (9) to prevent the spindle from turning.

11. Turn the outer nut (7) (on the end play bolt (4)) clockwise to pull the spindle up and remove all clearance from the lower saw drive bearing (10).

7 OUTER NUT

5

•

DRIVE SPINDLE

10 LOWER

BEARING

• •

14613A

SPINDLE END PLAY ADJUSTMENT SET MAGNETIC BASE OF DIAL INDICATOR ON SAW DRIVE HOUSING AND INDICATOR PROBE ON TOP OF LOCKNUT

Rotate the saw spindle from side to side by hand to compensate for grease build up in the bearing rollers.

NOTE: Do not tighten the nut excessively as this will cause bearing preload and an incorrect measurement. Tighten to "snug" only.

SPLINED ADAPTER

13. Lower spindle by turning the outer nut (7) counter-clockwise, allowing the spindle to drop.

Turn the inner nut (6) counter-clockwise to push the spindle down and properly seat the upper bearing (11) and ensure that all end play is measured.

NOTE: Do not tighten the nut excessively as this will cause bearing preload and an incorrect measurement. Tighten to "snug" only.

14. Rotate the saw spindle from side to side by hand to compensate for grease build up in the bearing rollers and take several readings around the nut.

DIAL INDICATOR

•

TOP OF LOCKNUT

• •

12. Position the magnetic base of a dial indicator on the machined surface of the saw drive housing.

Place the indicator probe on the top of the locknut and set the indicator to '0'.

RESET BUTTON

•

SAW DRIVE HOUSING

• INDICATOR PROBE

• MAGNETIC BASE SAW49

USE DIAL INDICATOR TO CHECK END PLAY 15. The correct reading is 0.003" - 0.006". If the reading falls outside these limits, note the amount and direction of adjustment required.

Refer to END PLAY ADJUSTMENT in THIS SECTION. NOTE: Operating the saw when the endplay is outside of these limits will cause premature bearing failure and possible motor, spindle, locknut and seal damage.

2.32

Tigercat Saws

Service and Maintenance

If a blade IS INSTALLED when performing this procedure continue with the following:

Install the saw blade lock pin using all the hardware provided. The blade lock pin must be secure. Refer to SAW BLADE LOCK PIN in THIS SECTION for instructions on the proper use of this safety device.

16. Position a lifting device such as a hydraulic jack, on a solid surface beneath the center of the saw blade. Raise the jack to apply an upward force to the spindle to remove all clearance from the lower saw drive bearing.

CAUTION Wear gloves and keep fingers clear of rotating blade and pinch points. A slowly rotating blade has enough stored energy to crush and cut hands or fingers.

21. Rotate the saw blade 1/4 turn by hand and repeat steps (16) through (20) in at least four places.

22. The correct reading is 0.003" - 0.006". If the reading falls outside these limits, note the amount and direction of adjustment required.

Refer to END PLAY ADJUSTMENT in THIS SECTION. NOTE: Operating the saw when the endplay is outside of these limits will cause premature bearing failure and possible motor, spindle, locknut and seal damage.

RAISE THE JACK TO APPLY AN UPWARD SAW27 FORCE TO THE SPINDLE 17. Position the magnetic base of a dial indicator on the machined surface of the saw drive housing (fig. SAW49). Place the indicator probe on the top of the locknut and set the indicator to '0'.

23. If no adjustment is required: a. Remove the end play tool. b. Install the splined adapter.

18. Lower the jack allowing the spindle to drop.

Rotate the saw blade (spindle) from side to side until the indicator needle settles down.

The amount shown on the dial indicator will be the end play.

c. Install motor mounting adapter. Torque bolts to 80-85 lbf-ft. d. Install drive motor. Torque bolts to 200220 lbf-ft.

19. Remove the saw blade guard.

e. Reconnect hoses. f.

BOLT SAW BLADE LOCK PIN

••

•• STORAGE LOCATION

••

•

SLOTTED INSPECTION COVER

SAW145

TYPICAL SAW BLADE LOCK PIN INSTALLATION

20. If the saw you are working on is equipped with a saw blade lock pin it must be used for this procedure.

2.33

Install saw motor cover.

Tigercat Saws

Service and Maintenance

SPINDLE END PLAY ADJUSTMENT

REFERENCE MARKS ON SPLINES OF BOTH LOCKNUT AND THE SPINDLE

NOTE: All steps in DRIVE SPINDLE END PLAY CHECKING PROCEDURES must be performed first to determine the amount and direction of the required adjustment.

LOCKNUT

•

WARNING Pay attention to all safety instructions outlined in section 1 of this manual.

Wear safety gloves at all times when handling and working around the saw blade.

Use recommended safety stands and devices when called for.

Always block wheels or tracks of carrier.

Work on solid ground.

1. Repeat steps (1) through (9) from DETAILED DRIVE SPINDLE END PLAY CHECKING PROCEDURE.

• INNER RACE OF UPPER BEARING

SAW DRIVE HOUSING

NOTE: ROTATING LOCKNUT ONE (1) SPLINE REPRESENTS .004" OF END PLAY MOVEMENT SAW37 REFERENCE MARK SPLINES 3. Remove the splined adapter. Special tool Tigercat PART NO. 20320A can be used if available.

2. Position a lifting device such as a hydraulic jack, on a solid surface beneath the center of the saw blade. Raise the jack to apply an upward force to the spindle to remove all clearance from the lower saw drive bearing.

20320AIL.PLT

SPLINED ADAPTER REMOVAL TIGERCAT SPECIAL TOOL 20320A

4. Place a reference mark on matching spline teeth of both the locknut and the spindle.

LOCKING BOLT

RAISE THE JACK TO APPLY AN UPWARD FORCE TO THE SPINDLE

SAW27

• • SAW 63

SAW BLADE GUARD

BLOCK SAW BLADE

5. Block saw blade to prevent it from turning using the locking bolt provided..

2.34

Tigercat Saws

Service and Maintenance 11. Remove the Tigercat wrench.

12. Lower the jack allowing the spindle to drop.

• •

SAW37

USE (2) 1/2"-13 UNC X 3/4" LONG BOLTS FOR LOCKNUT ON MODEL 5400, 5500, 5600 AND 5700 AND LATER 5000 HEADS. USE (2) 3/8"-16 UNC X 3/4" LONG BOLTS FOR LOCKNUT ON EARLIER MODEL 5000 HEAD.

CAUTION: DO NOT USE BOLTS THAT ARE TOO LONG.

SPECIAL TOOL FOR ADJUSTING END PLAY

13. Verify end play adjustment by following steps (10) through (15) (no blade installed) or (16) through (23) (with blade installed) in DETAILED DRIVE SPINDLE END PLAY CHECKING PROCEDURE. 14. If spindle end play IS NOT within the 0.003" - 0.006" tolerance re-adjust as described above.

15. If no further adjustment is required: a. Install motor mounting adapter. Torque bolts to 80-85 lbf-ft.

6. Use special tool Tigercat PART NO. 7600A to adjust the locknut.

7. End play is adjusted by turning the locknut clockwise to reduce, or counter-clockwise to increase end play. Rotating the locknut one spline tooth will represent 0.004" of end play movement.

8

Tightening the locknut pulls the spindle up through the inner race of the upper bearing. It will be necessary to assist movement of the spindle up through the upper bearing by using a blunt ended mild steel punch. Moving around the bearing, strike the inner race as close to the locknut as possible. DO NOT strike the bearing cage holding the rollers as a damaged cage will require the installation of a new bearing.

b. Install drive motor. Torque bolts to 200-220 lbf-ft. c. Reconnect hoses. d. Install saw motor cover.

16. For start-up after adjusting endplay refer to INITIAL START-UP OF A NEW SAW HEAD in THIS SECTION.

9. Alternate between striking the inner race and turning the locknut until the spline teeth in the locknut and the spindle are properly aligned to allow installation of the splined adapter into the top of the spindle through the locknut.

10. The locknut must always remain tight against the inner race. To verify this, attempt to insert a 0.002" feeler gauge between the locknut and the top of the inner race at four different places around the locknut, if the feeler gauge goes in repeat step (9) until no gap is present.

NOTE: If the end play is too tight, it will be necessary to push the spindle DOWN relative to the upper bearing. This is best accomplished by using a puller (Tigercat part no. 5553B) to pull the spindle DOWN. For more information on the use of this puller refer to PULLER, SAW DRIVE SPINDLE in THIS SECTION.

2.35

Tigercat Saws

Service and Maintenance

INSPECTING SAW TEETH 1. Turn the saw OFF and allow saw blade to come to a COMPLETE STOP. DO NOT exit the cab or approach the felling head until the blade is stopped.

6. Check that tooth mounting bolts are torqued to given specifications for blade type. Refer to SAW BLADE SPECIFICATION CHART in THIS SECTION.

IMPORTANT

2. Park the machine on firm level ground. Block the wheels or tracks. Engage the parking brake or swing brake. Position the saw head vertically and supported on horses or similar devices strong enough to withstand the weight of the saw head.

For in-woods maintenance, position the felling head with the base of the head supported on firm level ground. Tilt the head back slightly to allow access to the exposed portion of the blade and teeth.

If tooth mounting bolts are found to be loose all saw teeth should be removed and inspected. Inspect teeth and blade for cracks, excessive wear or other damage.

Replace all cracked, worn or damaged components.

7. Check all teeth and blade for cracks, missing carbide tips or other damage. Replace damaged teeth promptly. Refer to REPLACING SAW TEETH in THIS SECTION.

3. Stop the engine and turn the master disconnect switch OFF. 4. Ensure the saw blade has come to a complete stop.

A

BOLT SAW BLADE LOCK PIN

••

••

•• B C

STORAGE LOCATION

•

SLOTTED INSPECTION COVER

SAW145

TYPICAL SAW BLADE LOCK PIN INSTALLATION

SAW-P08 TOOTH WEAR LIMITS 8. Check for wear of the cutting edges of the teeth.

The two cutting edges of the tooth should always be (See fig. SAW-P08):-

5. If the saw you are working on is equipped with a saw blade lock pin it must be used for this procedure.

A. At the furthest distance from the blade centre.

Install the saw blade lock pin using all the hardware provided. The blade lock pin must be secure. Refer to SAW BLADE LOCK PIN in THIS SECTION for instructions on the proper use of this safety device.

B. The widest point between the top and bottom of the tooth.

C. Wider than the saw blade (B>C).

The teeth protect the saw blade from wear.

Tooth wear limits are intended to ensure that only the cutting edge of the teeth comes in contact with the tree being cut.

The rest of the tooth and blade should pass within the cut made by the cutting edge in order to reduce blade wear.

CAUTION Wear gloves and keep fingers clear of rotating blade and pinch points. A slowly rotating blade has enough stored energy to crush and cut hands or fingers.

2.36

Service and Maintenance

Tigercat Saws Head model series

5500 5600 5700

5400

5000

Blade details Narrow kerf (series 24) Narrow kerf (series 26) Wide kerf (series 14)

Dimension "B" New Tooth Maximum thickness allowable wear 1 7/8" 1 3/4" 1 7/8" 1 3/4" 2 5/16" 2 1/8"

Shankless (series 74)

2 1/4"

2 1/8"

Narrow kerf (series 24)

1 7/8"

1 3/4"

Narrow kerf (series 26)

1 7/8"

1 3/4"

Wide kerf (series 14) Shankless (series 74)

2 5/16" 2 1/4"

2 1/8" 2 1/8"

Narrow kerf (series 24)

1 7/8"

1 3/4"

Narrow kerf (series 26)

1 7/8"

1 3/4"

Wide kerf (series 13)

2 5/16"

2 1/8"

Wide kerf (series 14)

2 5/16"

2 1/8"

Shankless (series 74)

2 1/4"

2 1/8" R1 10/03

In addition, carbide tipped teeth should be replaced when wear extends as far as the body of the tooth at the tip, regardless of cutting edge position. Also replace the tooth when the gap between the carbide tips becomes greater than 1/16".

NO WIDER THAN 1/16"

SAW-123

CARBIDE TIP WEAR LIMIT

WARNING Failure to replace damaged or worn teeth will result in premature blade wear, poor cutting performance, blade cracks and a safety hazard and will VOID the blade warranty.

If the wear is not too excessive the tooth may be rotated 180° in the housing. Refer to ROTATING SAW TEETH in THIS SECTION. If excessive wear has taken place the tooth must be replaced. Refer to REPLACING SAW TEETH in THIS SECTION.

CAUTION Two-piece teeth are not recommended for use on Tigercat saw blades series 10, 13, 14, 24 and 26.

These teeth can cause damage to the tooth holder of the blade which could cause the tooth to separate creating a safety hazard.

2.37

Tigercat Saws

Service and Maintenance

INSPECTING SAW BLADE

Install the saw blade lock pin using all the hardware provided. The blade lock pin must be secure. Refer to SAW BLADE LOCK PIN in THIS SECTION for instructions on the proper use of this safety device.

The saw blade should be inspected at the same time as the teeth. Special attention should be paid to tooth holders which hold excessively worn or damaged teeth.

Daily inspection of the blade and teeth is normally done with the blade installed on the saw and the teeth installed on the blade. As a result some surfaces are not visible for inspection. A more thorough inspection of the entire blade and/or teeth should always be done whenever a blade or tooth is removed as a result of performing any service or maintenance procedure.

CAUTION Wear gloves and keep fingers clear of rotating blade and pinch points. A slowly rotating blade has enough stored energy to crush and cut hands or fingers.

6. Inspect the saw blade for cracks in the areas indicated by the arrows. If any cracks are found the blade must be replaced immediately.

1. Turn the saw OFF and allow saw blade to come to a COMPLETE STOP. DO NOT exit the cab or approach the felling head until the blade is stopped.

CAUTION

2. Park the machine on firm level ground. Block the wheels or tracks. Engage the parking brake or swing brake. Position the saw head vertically and supported on horses or similar devices strong enough to withstand the weight of the saw head.

DO NOT perform any welding on the disc blade or saw teeth.

7. Inspect the blade for signs of excessive wear in the areas indicated by the arrows.

For in-woods maintenance, position the felling head with the base of the head supported on firm level ground. Tilt the head back slightly to allow access to the exposed portion of the blade and teeth.

3. Stop the engine and turn the master disconnect switch OFF. 4. Ensure the saw blade has come to a complete stop.

BOLT SAW BLADE LOCK PIN

SAW-P03

•

• STORAGE LOCATION

ARROWS INDICATE AREAS OF BLADE TO INSPECT FOR CRACKS AND WEAR

••

••

SLOTTED INSPECTION COVER

SAW145

TYPICAL SAW BLADE LOCK PIN INSTALLATION

SAW-D11

ARROWS INDICATE AREAS OF BLADE TO INSPECT FOR CRACKS

5. If the saw you are working on is equipped with a saw blade lock pin it must be used for this procedure.

2.38

Service and Maintenance

Tigercat Saws

Wear limits for both wide kerf blades and narrow kerf blades are shown in fig. SAW113.

These wear limits apply to all Tigercat series 13, 14, 24, 26 and 74. Special care should be taken in inspecting tooth holders when excessively worn or damaged teeth are found.

IMPORTANT: THIS FACE MUST BE FLAT FOR PROPER TOOTH SEATING

'C'

If blade wear is greater than the wear limit shown the blade must be replaced immediately.

'C'

8. Inspect blade for correct blade runout. Refer to CHECK BLADE RUNOUT (WOBBLE) in THIS SECTION.

'A' 'B'

'A' 'A'

SAW114

'C'

SERIES 13 BLADE

SAW115

'C'

TYPICAL FOR SERIES 14 AND 24 BLADE

'C' SAW141

SERIES 26 BLADE 'C'

SAW142

BUTT PLATE

SERIES 74 BLADE WEAR

'D'

TOOTH

SAW140

SAW BLADE

WEAR LOCATION 'A' 'B' 'C' 'D' SAW113

WEAR

BLADE WEB WEAR TYPICAL FOR ALL BLADES

BLADE WEAR LIMITS SERIES SERIES SERIES SERIES 13 14 24 26 0.190" 0.190" 0.190" 0.190" 1.40" 1.40" 1.25" 1.25" 0.5" 0.375" 0.375" 0.5" 0.80"

BLADE WEAR LIMITS

SERIES 74 0.25" 1.40" 0.375" R1 10/03

2.39

Tigercat Saws

Service and Maintenance

CHECK BLADE RUNOUT (OR WOBBLE) 1. Turn the saw OFF and allow saw blade to come to a COMPLETE STOP. DO NOT exit the cab or approach the felling head until the blade is stopped.

2. Park the machine on firm level ground. Block the wheels or tracks. Engage the parking brake or swing brake. Position the saw head vertically and supported on horses or similar devices strong enough to withstand the weight of the saw head.

SAW42

For in-woods maintenance, position the felling head with the base of the head supported on firm level ground. Tilt the head back slightly to allow access to the exposed portion of the blade and teeth.

CHECK BLADE FOR RUNOUT (OR WOBBLE)

6. The head should be in the vertical position, (saw blade horizontal).

7. Grasp the blade and move it up and down.

8. Rotate the blade by hand to check that it rotates freely without runout or (wobble).

3. Stop the engine and turn the master disconnect switch OFF. 4. Ensure the saw blade has come to a complete stop.

BOLT SAW BLADE LOCK PIN

•

• STORAGE LOCATION

•

••

SLOTTED INSPECTION COVER

SAW145

TYPICAL SAW BLADE LOCK PIN INSTALLATION

SAW-P09

USE A DIAL INDICATOR TO MEASURE BLADE RUNOUT

9. In addition use a dial indicator to measure blade runout (or wobble).

5. If the saw you are working on is equipped with a saw blade lock pin it must be used for this procedure.

a. Place the dial indicator on the butt plate of the saw .

Install the saw blade lock pin using all the hardware provided. The blade lock pin must be secure. Refer to SAW BLADE LOCK PIN in THIS SECTION for instructions on the proper use of this safety device.

b. Zero the dial indicator and rotate the blade by hand. c. Runout should not exceed 0.100".

10. If runout is greater than 0.100" is observed check for:

CAUTION

a. A bent or distorted blade.

Wear gloves and keep fingers clear of rotating blade and pinch points. A slowly rotating blade has enough stored energy to crush and cut hands or fingers.

b. Excessive spindle end play, causing vertical blade movement. Refer to SPINDLE END PLAY in THIS SECTION. 2.40

Service and Maintenance

Tigercat Saws ROTATING SAW TEETH Saw teeth can be rotated 180° to extend the service life of the teeth.

Normally all teeth are rotated at the same time.

Teeth should be rotated when any one of the following conditions exist: •

Tooth corners are chipped exposing the blade to wear.

•

Cutting edges are dull or worn excessively exposing the rest of the tooth and blade to wear.

•

Carbide tips broken off, missing or worn as far as the tooth body.

•

Visible wear appears on the tooth mounting lug. Refer to INSPECTING THE BLADE in THIS SECTION for limits on acceptable blade wear.

•

Any sign of excessive wear or damage which could result in an imbalance or unsafe operation of the blade. In cases of severe damage which may present a safety hazard, replacement of the tooth is recommended.

NEW TOOTH

WORN TOOTH ROTATED 180°

SAW41

ROTATE WORN TEETH

Rotate teeth 180° as shown. Refer to REPLACING SAW TEETH in THIS SECTION for information about removing and installing teeth.

IMPORTANT Always check cutting edge clearance and blade balance after rotating teeth.

2.41

Tigercat Saws REPLACING SAW TEETH

Service and Maintenance SAW TOOTH REMOVAL

1. Turn the saw OFF and allow saw blade to come to a COMPLETE STOP. DO NOT exit the cab or approach the felling head until the blade is stopped.

2. Park the machine on firm level ground. Block the wheels or tracks. Engage the parking brake or swing brake. Position the saw head vertically and supported on horses or similar devices strong enough to withstand the weight of the saw head.

For in-woods maintenance, position the felling head with the base of the head supported on firm level ground. Tilt the head back slightly to allow access to the exposed portion of the blade and teeth.

NOTE: To maintain balance, saw teeth should be replaced in pairs opposite to each other, However if the majority of the teeth are excessively worn then ALL of the teeth on the blade should be replaced at the same time.

6. If saw teeth are to be reused (after rotating) do not hammer on the side of the teeth.

7. Loosen tooth retaining bolt two or three turns.

8. Tap the bolt head until the tooth is loose.

9. Remove the bolt and the tooth.

CAUTION Two-piece teeth are not recommended for use on Tigercat saw blades series 10, 13, 14, 24 and 26.

These teeth can cause damage to the tooth holder of the blade which could cause the tooth to separate creating a safety hazard.

Use only the factory recommended shanktype teeth

3. Stop the engine and turn the master disconnect switch OFF. 4. Ensure the saw blade has come to a complete stop.

BOLT SAW BLADE LOCK PIN

•

• STORAGE LOCATION

••

••

SLOTTED INSPECTION COVER

SAW145

TYPICAL SAW BLADE LOCK PIN INSTALLATION

5. If the saw you are working on is equipped with a saw blade lock pin it must be used for this procedure.

Install the saw blade lock pin using all the hardware provided. The blade lock pin must be secure. Refer to SAW BLADE LOCK PIN in THIS SECTION for instructions on the proper use of this safety device.

CAUTION Wear gloves and keep fingers clear of rotating blade and pinch points. A slowly rotating blade has enough stored energy to crush and cut hands or fingers.

2.42

Service and Maintenance

Tigercat Saws SAW TOOTH INSTALLATION IMPORTANT: DO NOT RE-USE THE ORIGINAL BOLTS. 10. Thoroughly clean all mating surfaces and remove any burrs that may be present before installing teeth. Use fine Emery paper on both the tooth shank and inside the hole.

11. Apply an anti-seize compound to the tooth shank and the retaining bolt threads and under the head of the bolt.

SAW TOOTH RETAINING BOLT TOOTH SHANK

•

• SAW41

•

SAW TOOTH

SAW TOOTH ASSEMBLY

12. Slide the tooth into the hole in the disc, ensure that the tooth seats tightly against the shoulder of the disc blade.

13. Torque the tooth retaining bolts to the specified torque value.

DO NOT USE AN IMPACT WRENCH AND DO NOT OVER TORQUE

2.43

Tigercat Saws

Service and Maintenance

SERVICE PROCEDURES

4. Ensure the saw blade has come to a complete stop.

SAW BLADE REMOVAL

5. Remove the 1 1/4" plug from the base of the log pocket, (Models 5000 and 5600 heads only).

NOTE: With regard to track feller bunchers, there are two alternative methods that may be employed to remove the saw blade.

CAUTION

DANGER

Wear gloves and keep fingers clear of rotating blade and pinch points. A slowly rotating blade has enough stored energy to crush and cut hands or fingers.

Observe all safety precautions outlined in this manual when performing this service procedure.

1. Turn the saw OFF and allow saw blade to come to a COMPLETE STOP. DO NOT exit the cab or approach the felling head until the blade is stopped.

6. Rotate the saw blade until two of the 1" tapped holes in the blade line up with the two holes in the base of the saw housing.

7. Using Tigercat special tool kit, (part no.

7709B) thread a 1"-8 UNC nut, washer and a spacer onto the end of each threaded rod.

REMOVE PLUG (MODELS 5000 AND 5600) HEADS ONLY

THREADED ROD

NUT

•

•

SPACER

WASHER

•

•

18" QTY. PT. NO. 1 7709B 2 10703A 2 2442A100 4 2450A100 2 10849A SAW44

SAW27

DESCRIPTION BLADE INSTAL. KIT, CONSISTING OF:ROD, THREADED NUT, HEX. 1" UNC GR.5 WASHER, 1" GR. 9 SPACER.

THREADED ROD FOR BLADE REMOVAL

PARK MACHINE, BLOCK WHEELS AND SAW36B REST FELLING ON GROUND

8. Insert the rods into the two holes in the saw head base and screw the rods at least 2" into the saw blade.

TYPICAL LOCATION OF THREADED RODS

TIGERCAT SAW MODELS 5000 AND 5600 SHOWN.

PARK MACHINE, BLOCK TRACKS AND REST FELLING ON GROUND

SAW43A

SAW84A

2. Park the machine on firm level ground. Block the wheels or tracks. Engage the parking brake or swing brake. Position the saw head vertically on the ground.

3. Stop the engine and turn the master disconnect switch OFF.

SAW BLADE REMOVAL

LOCATION IN SIMILAR PLACE FOR MODELS 5400, 5500 AND 5700

CAUTION This saw blade is heavy and the teeth are sharp, do not use hands to assist with removal.

2.44

Service and Maintenance

Tigercat Saws 9. Tighten the nuts down onto the saw base taking care not to let the threaded rod turn at the same time.

LOG POCKET

SCREW THE RODS AT LEAST 2" INTO THE SAW BLADE

• • •

11. Raise felling head and remove any guarding that may interfere with removal of the saw blade from the underside of the felling head.

12. Remove the twelve socket head blade retaining bolts and remove the flange (when used).

1" - 8 UNC NUT AND WASHER

SPACER, PART NO. 10849A. INCL. IN KIT 7709B

SAW BLADE

THREADED ROD IN POSITION TO LOWER (OR RAISE) BLADE SAW43B 10. Turn the battery disconnect switch ON, start the engine and place the felling head onto support stands or, two blocks of wood on flat ground. NOTE: ensure support stands are close enough together to support blade after removal.

CAUTION The saw blade is now supported only by the two threaded rods.

13. With felling head positioned 1" or 2" above horses, Lower the blade onto the support stands by screwing the 1" nuts counterclockwise on the threaded rods. Make sure that the threaded rods do not turn out of the saw blade when unscrewing the nuts.

If the blade does not release itself from the saw drive spindle after 2 or 3 turns of the nuts, it may be necessary to pry the blade loose at several different places around the blade.

NOTE: TWO BLOCKS OF WOOD ON FLAT GROUND MAY ALSO BE USED INSTEAD OF HORSES SAW38

REMOVE WHEEL BLOCKS AND BACK AWAY FROM SAW BLADE

POSITION HEAD ON SUPPORT STANDS FOR BLADE REMOVAL

SAW39 SAW BLADE REMOVAL 14. After removal, inspect the teeth and blade as described in INSPECTING SAW TEETH and INSPECTING SAW BLADE in THIS SECTION. Also check end of drive spindle for burrs or other damage.

SAW84B

POSITION HEAD ON SUPPORT STANDS FOR BLADE REMOVAL

2.45

Service and Maintenance

Tigercat Saws SAW BLADE INSTALLATION 1. Clean blade mounting surfaces on both the blade and the spindle. If a flange plate or spindle pilot adapter is being used this should also be cleaned.

2. Lubricate spindle contact surfaces with an anti-seize compound.

3. With the blade resting on support stands, position the felling head over the blade and align the two large holes in the felling head base with the two tapped holes in the blade.

4. Place a 1" nut and washer onto each threaded rod.

5. Insert the rods into each of the two holes and screw the rods at least 2" into the saw blade.

6. Raise the blade by alternately tightening the nuts. When the blade approaches the spindle, raise the felling head and guide the blade onto the pilot of the spindle.

7. Line up the 12 holes in the blade with the tapped holes in the spindle. Always use new (12) 3/4" bolts, lubricate with an anti-seize compound and install the bolts hand tight.

8. Tighten all 12 bolts evenly and in several stages to draw the blade up the spindle pilot and seat the blade. Torque bolts in stages: 1st to 1/2 torque; 2nd. to 2/3 torque and 3rd. to full torque of 280-320 lbf-ft.

9

5

3

1 12

7 UNDER SIDE OF SAW BLADE

11

8

2

4 6

SAW64

10

BLADE BOLT TIGHTENING SEQUENCE

9. Slowly rotate the blade by hand and check for any interference with the butt plate, saw guard or housing.

CAUTION Wear gloves and keep fingers clear of rotating blade and pinch points. A slowly rotating blade has enough stored energy to crush or cut the hands or fingers.

2.46

Tigercat Saws

Service and Maintenance

SAW BLADE REMOVAL, ALTERNATIVE METHOD FOR TRACK FELLER BUNCHERS

6. Install a 1" eye bolt into one of the four tapped holes in the saw blade.

DANGER Observe all safety precautions outlined in this manual when performing this service procedure.

1. Turn saw OFF and allow saw blade to come to a COMPLETE STOP. 2. Park machine on flat solid ground with felling head tilted forward 90° and resting on ground.

NOTE: Open clamp arms sufficiently to allow felling head to be resting in a horizontal position.

• SAW106

1" EYE BOLT

7. Place a sling over the stick boom as shown, attached a chain hoist to the end of the sling and the end of the chain to the eye bolt.

SLING

• CHAIN HOIST

•

SAW105

3. Block tracks to prevent machine movement.

4. Stop engine and turn battery disconnect switch OFF.

•

1" EYE BOLT

TURN BATTERY DISCONNECT SWITCH OFF 5. Remove all blade guards and skiis to gain access to saw blade.

SAW107

8. Remove the blade retaining bolts and remove the bottom flange if fitted.

CAUTION Use a suitable lifting device when removing the bottom flange, bottom flange is heavy.

2.47

Service and Maintenance

Tigercat Saws 9. Use the hoist to remove the saw blade from the drive spindle hub, it may be necessary to pry the blade loose at several different places around the blade.

SAW108

CAUTION Saw blade is heavy, make sure that the blade is supported by the chain hoist before prying it loose from the drive spindle hub.

10. Place saw blade onto support stands to facilitate inspection and possible maintenance.

SAW109

11. Check condition of saw blade and saw teeth as described in INSPECTING SAW BLADE and INSPECTING SAW TEETH in THIS SECTION. 12. Check condition of drive spindle hub, remove any burrs or scoring that might interfere with reinstallation of saw blade.

2.48

Tigercat Saws

Service and Maintenance

SAW BLADE INSTALLATION USING CHAIN HOIST AND SLING

6. Tighten all 12 bolts evenly and in several stages to draw the blade up the spindle pilot and seat the blade. Torque bolts in stages: 1st to 1/2 torque; 2nd. to 2/3 torque and 3rd. to full torque of 280-320 lbf-ft.

1. Clean blade mounting surfaces on both the blade and the drive spindle hub. If a flange plate or spindle pilot adapter is being used this should also be cleaned.

9

5

3

2. Lubricate drive spindle contact surfaces with an anti-seize compound.

1 12

7

3. To assist with lining up the blade and drive spindle hub, install two dowel pins (Tigercat part no. 12083A) into two of the twelve 3/4" bolt holes in the flange of the drive spindle hub.

UNDER SIDE OF SAW BLADE

11

8

2

4 6

SAW64

10

BLADE BOLT TIGHTENING SEQUENCE

7. Slowly rotate the blade by hand and check for any interference with the butt plate, saw guard or housing.

CAUTION

•

Wear gloves and keep fingers clear of rotating blade and pinch points. A slowly rotating blade has enough stored energy to crush and cut hands or fingers.

• • INSTALL TWO DOWEL PINS

DRIVE SPINDLE HUB

SAW110

4. Use the chain hoist to lift the blade off the support stands and place into position opposite the drive spindle hub.

5. Line up the dowel pins with two holes in the saw blade and install the saw blade onto the drive spindle hub. Lubricate the twelve 3/4" saw blade retaining bolts with an anti-seize compound and install the bolts hand tight, always use new bolts.

2.49

Service and Maintenance

Tigercat Saws

POSITION HEAD ON SUPPORT STANDS FOR SAW DRIVE SPINDLE REMOVAL

SAW84B

SAW38

4. Using the drive spindle puller shown, Pull the drive spindle down until the locknut makes contact with the inner race of the upper bearing.

POSITION FELLING HEAD FOR SAW DRIVE SPINDLE REMOVAL

DRIVE SPINDLE REMOVAL CAUTION DANGER

Do not hammer directly on the locknut or on the splines, this could damage the threads or spindle.

Observe all safety precautions outlined in this manual when performing this service procedure.

5. Remove the locknut .

1. Remove saw blade. Refer to SAW BLADE REMOVAL in THIS SECTION.

6. Insert an eye bolt (1/2"-13 UNC) into the tapped hole located in the top of the drive spindle and support the spindle with a suitable wire rope attached to the upper part of the felling head.

2. Remove saw motor cover, saw motor and motor mounting adapter ring.

WIRE ROPE ATTACH OTHER END TO UPPER PART OF FELLING HEAD (ARM)

• •

USE (2) 1/2"-13 UNC X 3/4" LONG BOLTS FOR LOCKNUT ON MODEL 5400, 5500, 5600 AND 5700 AND LATER 5000 HEADS.

• • •

SAW37

• EYE BOLT

SAW DRIVE SPINDLE

•

USE (2) 3/8"-16 UNC X 3/4" LONG BOLTS FOR LOCKNUT ON EARLIER MODEL 5000 HEAD. CAUTION: DO NOT USE BOLTS THAT ARE TOO LONG.

•

UNDER SIDE OF SAW HOUSING

•

•

INSERT 3/4" FINE THREAD OF THREADED RODS INTO DRIVE SPINDLE FLANGE

LOCKNUT - LOOSEN AND BACK OFF HALF WAY

SAW DRIVE UPPER HOUSING BEARING

TIGHTEN NUTS (C/W) EVENLY TO PULL OUT SPINDLE

SPECIAL TOOL FOR TURNING LOCKNUT 3. Loosen the bearing locknut on the spindle and back it off half way.

SAW 51C

2.50

•

• • •

PULLER. SEE FIG. SAW 45 FOR ASSEMBLY ORDER OF COMPONENTS

REMOVE SAW DRIVE SPINDLE

Service and Maintenance

Tigercat Saws •

2

•

•

8

• 5

•

6

3 ASSEMBLE AS SHOWN FOR 5500 SAW ASSEMBLE AS SHOWN FOR 5000 SAW ASSEMBLE AS SHOWN FOR 5400 SAW ASSEMBLE AS SHOWN FOR 5600 SAW

•

•

5

•

•

6

•

• 7

5

4 ASSEMBLE AS SHOWN FOR 5700 SAW

ITEM QTY. PART NO. 1 1 5553B 2 2 13958A 3 1 9053A 4 1 9050A 5 16 2450A088 6 2 2444A088 7 1 2434A500 8 1 9036A

DESCRIPTION Kit, spindle/bearing puller, consisting of:. Rod, puller, spindle . Bar, support . Spacer . Washer, flat, 7/8" . Nut, hex. 7/8"-9 UNC Gr. 8 . Bolt, hx. 3/4"-10 UNC x 5" lg. Gr. 8 . Support, puller

SAW45

1 KIT, SPINDLE/BEARING PULLER

SAW DRIVE SPINDLE PULLER COMPONENTS

7. Continue to pull out the spindle while at the same time loosening the rope.

can be used to push the lower bearing cone off of the spindle.

For small saws (model 5000 only) two 1/2" bolts can be used through the two 1/2" tapped holes in the bottom of the spindle to push the lower bearing cone off of the spindle. Or alternatively a soft steel punch can be used in the two 1/2" tapped holes in the bottom of the spindle to push the lower bearing cone off of the spindle.

CAUTION The spindle is heavy (83lbs.) handle with a suitable lifting device to prevent personal injury and damage to the spindle.

8. Lower the spindle and remove it from saw housing.

9. Remove the spindle seal from the housing and discard it. (Note: Always use a new seal when re-installing the spindle.) Normally the lower spindle seal is dislodged by interference with the lower bearing during removal of the spindle. If it is not dislodged it must be removed from the housing.

10. Once the spindle is free, remove the rope and eye bolt and remove the upper bearing cone.

11. Remove the lower bearing cone from the spindle. A bearing puller is the best tool to use for removing the lower bearing cone.

However if a bearing puller is not available:

12. Remove the steel seal ring from the spindle.

13. Remove the upper bearing cup and grease retainer from the saw housing.

14. Remove the lower bearing cup from the saw housing.

15. Clean all components and thoroughly inspect for wear and damage. Inspect the drive spindle for cracks and the splines and threads for damage.

16. Clean out the inside of the saw housing and check for cracks/damage.

For large saws (models 5400,5500,5600 and 5700) bolts threaded in through the blade installation holes in the bottom of the spindle

2.51

Service and Maintenance

Tigercat Saws

the locknut and tapping the bearing cone down onto the spindle with a mild steel punch. While tightening the locknut check that the lower grease seal is seating properly in the recess. Continue to tighten until the upper bearing cone is firmly up against the bearing cup.

DRIVE SPINDLE INSTALLATION INSTALLATION NOTES: Always use NEW bearings, seals and a locknut.

Refer to illustration on facing page for correct order of assembly of parts.

1. Install the lower bearing cup into the housing, with the smaller inside diameter facing up and firmly up against the shoulder in the lower part of the saw housing.

SAW HOUSING

•

2. Install the upper grease retainer into the upper part of the saw housing with the lip facing up.

3. Install the upper bearing cup into the saw housing with the smaller inside diameter facing down and firmly down against the upper grease retainer in the upper part of the saw housing.

•

WARNING

•

To avoid personal injury caused by burning, handle these heated components with extreme care.

USE TAPPED HOLES IN SPINDLE BASE FOR SEATING SEAL ON MODEL 5000 FELLING HEAD

4. Heat lower seal ring in oil to approx. 280°F and slide the seal ring onto the spindle making sure that the 45° chamfer faces down.

SEAT GREASE SEAL IN HOUSING 13. IMPORTANT, Tap around the grease seal in several places using a flat faced mild steel punch to make sure that the seal is seated properly in the housing and is not rubbing against the top side of the spindle flange. On the model 5000 saw use the twelve blade mounting holes. On models 5400, 5500, 5600 and 5700 saws use the two 3/8" dia. plain holes.

SAW 52

7. Heat lower bearing cone in oil to approx. 280°F and install onto spindle with wide side of cone facing down and pressed against the seal ring.

8. Pack the lower bearing cone with grease.

FLAT FACED MILD STEEL PUNCH

USE THE (2) PLAIN HOLES IN SPINDLE BASE TO SEAT SEAL ON MODELS 5400, 5500, 5600 AND 5700 FELLING HEADS

5. Apply a thin coating of grease to the lip of the grease seal.

6. Install the grease seal onto the spindle and around the seal ring with the open side of the seal facing up.

SAW DRIVE SPINDLE FLANGE

9. Place the drive spindle onto a jack and proceed 14. Pack the upper bearing cone with grease. to raise the spindle into the saw housing. Take care not to damage the grease seal. Carefully 15. Apply grease at the grease fittings to the upper and guide the grease seal into the small recess in the lower saw spindle bearings until the grease begins to saw housing. come out of the vent fittings. Use a hand grease gun to prevent damage to the grease seal.

NOTE: The outer mounting surface of the grease seal has a special coating which acts as a 16. Set correct spindle end play, IMPORTANT, Allow all lubricant during assembly and then as an heated components to cool down prior to setting end adhesive to help hold the seal in place after play otherwise false readings will result. Refer to assembly.

SPINDLE END PLAY ADJUSTMENT in THIS 10. Pre-heat upper bearing cone to approx. 280°F and install onto spindle with small end of cone facing down.

SECTION. 17. Install the saw blade as described in SAW BLADE INSTALLATION in THIS SECTION.

11. Apply grease to the threads on the spindle and install a NEW locknut.

18. For start-up after installing or servicing the spindle, bearings or adjusting endplay refer to INITIAL STARTUP OF A NEW SAW HEAD in THIS SECTION. 12. Pull the spindle through the housing by tightening 2.52

Service and Maintenance

Tigercat Saws

CAP MOUNTING BOLTS (6)

•

• MOTOR MOUNTING BOLTS (4)

• •

•

MOTOR MOUNTING CAP

GREASE FITTING VENT FITTING

•

LOCKNUT

•

SPLINED ADAPTER

•

UPPER BEARING CONE

• •

THESE FITTINGS MAY BE REMOTE MOUNTED ON SAW HOUSING

UPPER BEARING CUP

• •

GREASE RETAINER

VENT FITTING GREASE FITTING

•

SAW DRIVE HOUSING LOWER BEARING CUP LOWER BEARING CONE

• • • •

GREASE SEAL SEAL RING SAW DRIVE SPINDLE

SAW TOOTH

•

•

•

• •

BLADE RETAINING BOLTS 2 1/4" LONG WITHOUT FLANGE 3 1/2" LONG WITH FLANGE

PLUG

SAW112

SPACER SPACER (PILOT TO SPIGOT) BOLTING FLANGE

•

• •

SAW DRIVE SPINDLE ASSEMBLY

2.53

USED ON EARLIER MODEL 5600 ONLY WITH QUADCO OR KOEHRING WATEROUS BLADES USED ON ALL TIGERCAT 'ST' HEADS

GREASE FITTING (FOR LUBRICATING SPLINED ADAPTER)

Service and Maintenance

Tigercat Saws BUTT PLATE AND POCKET FLOOR REPLACEMENT - Tigercat SAW HEAD MODELS 5000, 5400, 5500 AND 5600

BOLT SAW BLADE LOCK PIN

DESCRIPTION: Early 5000, 5500 and 5600 saw heads can be updated to the one-piece design following the details in PSB1506. Early 5400 saw heads can be updated to the one-piece design following the details in kit 18331B.

•

• STORAGE LOCATION

•

••

WARNING SLOTTED INSPECTION COVER

Observe all safety precautions outlined in this manual when performing this service procedure.

SAW145

INSTALLATION NOTE: The following instructions are based on replacing a butt plate on a Tigercat model DW5600 saw head.

Although the other models have slightly different shaped butt plates this replacement procedure may be used as a guide.

1. Turn the saw OFF and allow saw blade to come to a COMPLETE STOP. DO NOT exit the cab or approach the felling head until the blade is stopped.

TYPICAL SAW BLADE LOCK PIN INSTALLATION

6. If the saw you are working on is equipped with a saw blade lock pin it must be used for this part of the procedure.

Install the saw blade lock pin using all the hardware provided. The blade lock pin must be secure. Refer to SAW BLADE LOCK PIN in THIS SECTION for instructions on the proper use of this safety device.

CAUTION

2. Park the machine on firm level ground. Block the wheels or tracks. Engage the parking brake or swing brake. Position the saw head vertically and supported on horses or similar devices strong enough to withstand the weight of the saw head.

Wear gloves and keep fingers clear of rotating blade and pinch points. A slowly rotating blade has enough stored energy to crush and cut hands or fingers.

3. Stop the engine and turn the master disconnect switch OFF.

7. Remove guards and clean all debris from the saw head to minimize the chance of fire.

4. Ensure the saw blade has come to a complete stop.

8. Measure blade to butt plate clearance, use this measurement and the butt plate position as a guide for installing the new butt plate.

5. Ensure all hydraulic pressure in the pilot lines has been released.

9. Remove the saw blade lock pin.

CAUTION Do not allow the bearing housing to exceed 250° F (120° C) at any time during removal or installation of butt plate.

10. Remove skis and underside guard. Remove saw blade. Refer to SAW BLADE REMOVAL in THIS SECTION. 11. Remove existing butt plate by gouging the welds on the top and bottom surfaces.

12. Remove existing pocket floor by cutting.

Follow the inside profile of the vertical side pocket plate. Completely remove the floor 2.54

Tigercat Saws INSIDE PROFILE POCKET SIDE PLATE

Service and Maintenance BRACE, SUGGESTED 2"X4"X3/8" STEEL TUBE

EXISTING BUTTPLATE

TACK WELD SHIMS TO BUTT PLATE AND BRACE.

••

••

•

SAW118

• 1" AT EACH END OF 1 1/8" - 1 3/16" BRACE AT CENTER OF SAW NEW BUTT PLATE

PRELOAD BUTT PLATE PRIOR TO WELDING

•

saw head and fits inside the vertical pocket side plates. Trim pocket floor portion if required to clear existing welds.

EXISTING WEAR LINER (IF EQUIPPED)

SAW-148

UNDERSIDE VIEW WITH SAW BLADE REMOVED from the bearing housing and the bottom edge of the vertical rear pocket plate.

13. Clean all surfaces of paint, rust, weld, etc. in the areas where the new butt plate will be located.

14. Position the new buttplate and pocket floor and tack weld.

15. Caution – the pocket floor portion is not horizontal and slopes up to the rear of the

SAW-149

• •

•• EXISTING POCKET FLOOR

1/4" FILLET WELD AT EACH END OF BRACE

16. Position brace 1” above the flat new butt plate and weld to housing at ends.

17. To compensate for stresses due to welding, shim between the brace and new butt plate to preload the butt plate by 1/8” – 3/16” at the center of the saw as shown. More preload may be required depending on welding techniques.

18. Tack weld the shims to both the new plate and the brace.

UNDERSIDE VIEW WITH NEW PLATE IN POSITION

2.55

Service and Maintenance

Tigercat Saws

SAW-151

BUTTPATE INSTALLATION WELDING SEQUENCE

19. Weld new plate into position on bottom and top. Weld in the sequence and direction as shown for each pass.

BOLT SAW BLADE LOCK PIN

NOTE: Preheat the weld area to a minimum of 300° F (150° C).

20. Note the location of the “NO WELD” and the transition of welding from top to bottom (weld sequence 13).

•

• STORAGE LOCATION

CAUTION Do not allow the bearing housing to exceed 250° F (120° C) at any time during removal or installation of butt plate.

••

••

SLOTTED INSPECTION COVER

21. Peen the face of each weld immediately after each pass using ¼” ball nose pneumatic peener. This will help reduce the stress build up in the weld due to cooling and minimize distortion of the butt plate.

SAW145

TYPICAL SAW BLADE LOCK PIN INSTALLATION

26. If the saw you are working on is equipped with a saw blade lock pin it must be used for this part of the procedure.

22. Recommended weld rod number ER8018E or wire number ER480S6.

Install the saw blade lock pin using all the hardware provided. The blade lock pin must be secure. Refer to SAW BLADE LOCK PIN in THIS SECTION for instructions on the proper use of this safety device.

23. Wait until the new buttplate and pocket floor and the welds are cool to the touch. Remove the brace and shims. Grind all tack welds flush.

CAUTION

24. Check new buttplate and pocket floor for flatness (maximum 1/16” buttplate variation allowed). Straighten as required.

Wear gloves and keep fingers clear of rotating blade and pinch points. A slowly rotating blade has enough stored energy to crush and cut hands or fingers.

25. Install saw blade. Refer to SAW BLADE INSTALLATION in THIS SECTION.

2.56

Tigercat Saws

Service and Maintenance

CHECK GAPS

SAW-153

BUTT PLATE GAP, SEE CHART

BUTT PLATE/BLADE CLEARANCE BLADE GAP SERIES 13 1/8" 14 1/8" - 1/4" 24 1/8" - 3/16" 26 1/8" - 3/16"" 74 1/8" - 1/4"

1/8" MAX.

SAW-154

SAW BLADE

NEW SAW TOOTH

CHECK GAP BETWEEN NEW BUTT PLATE AND SAW BLADE

SAW-152

CHECK GAP BETWEEN NEW POCKET FLOOR AND TEETH 27. Check gap between new butt plate and saw blade, it should measure between 1/8" and 3/16".

28. Check the clearance between the saw blade teeth and the underside of the pocket floor.

Clearance should be a minimum of 5/16”.

Correct as required.

29. Install skis and underside guard.

30. Ensure all guards are in place. Do not operate the saw head without the guards installed.

2.57

Service and Maintenance

Tigercat Saws BUTT PLATE REPLACEMENT (WELDED) - Tigercat SAW HEAD MODELS 5000,5400, 5500, 5600 & 5700

Install the saw blade lock pin using all the hardware provided. The blade lock pin must be secure. Refer to SAW BLADE LOCK PIN in THIS SECTION for instructions on the proper use of this safety device.

INSTALLATION NOTE: The following instructions are based on replacing a butt plate on a Tigercat model 5700 saw head.

Although the other models have slightly different shaped butt plates this replacement procedure may be used as a guide.

CAUTION Wear gloves and keep fingers clear of rotating blade and pinch points. A slowly rotating blade has enough stored energy to crush and cut hands or fingers.

WARNING

7. Remove guards and clean all debris from the saw head to minimize the chance of fire.

Observe all safety precautions outlined in this manual when performing this service procedure.

8. Measure blade to butt plate clearance, use this measurement and the butt plate position as a guide for installing the new butt plate.

1. Turn the saw OFF and allow saw blade to come to a COMPLETE STOP. DO NOT exit the cab or approach the felling head until the blade is stopped.

9. Remove the saw blade lock pin.

10. Remove skis and underside guard. Remove saw blade. Refer to SAW BLADE REMOVAL in THIS SECTION.

2. Park the machine on firm level ground. Block the wheels or tracks. Engage the parking brake or swing brake. Position the saw head vertically and supported on horses or similar devices strong enough to withstand the weight of the saw head.

CAUTION Do not allow the bearing housing to exceed 250° F (120° C) at any time during removal or installation of butt plate.

11. Remove existing butt plate by gouging the welds on the top and bottom surfaces.

3. Stop the engine and turn the master disconnect switch OFF. 4. Ensure the saw blade has come to a complete stop.

12. Clean all surfaces of paint, rust, weld, etc. in the areas where the new butt plate will be located.

5. Ensure all hydraulic pressure in the pilot lines has been released.

CREATE 3/8" X 45° CHAMFER IN TWO PLACES

BOLT SAW BLADE LOCK PIN

••

•• STORAGE LOCATION

•• CLEAN BUTT PLATE MOUNTING SURFACE

•

PREPARE BUTT PLATE MOUNTING SURFACE 13. Create a new chamfer to lower edge of end of the butt plate mounting surface by grinding off old weld to size shown in fig. SAW116.

SLOTTED INSPECTION COVER

SAW145

UNDERSIDE VIEW WITH BUTT PLATE REMOVED

SAW116

TYPICAL SAW BLADE LOCK PIN INSTALLATION

14. Position new butt plate as shown and tack weld on both sides.

6. If the saw you are working on is equipped with a saw blade lock pin it must be used for this part of the procedure.

2.58

Tigercat Saws

Service and Maintenance 18. Weld new butt plate into position on bottom and top. Weld in the sequence and direction as shown for each pass.

TACK WELD BOTH SIDES RADIUS 'R'

NOTE: Preheat the weld area to a minimum of 300° F (150° C).

3/8"

3/8"

3/8" FILLET WELD

NO WELD IN BEARING HOUSING AREA UNDERSIDE VIEW WITH BUTT PLATE IN PLACE SAW117

SAW MODEL 5000 5400 5500 5600 5700

RADIUS 'R' 20 3/4" 22 3/8" 23 9/16" 23 13/16" 23 9/16"

DO NOT WELD BETWEEN POINTS

POSITION NEW BUTT PLATE

15. Position brace 1” above the flat new butt plate and weld to housing at ends.

DO NOT START OR STOP WELD IN THIS AREA

16. To compensate for stresses due to welding, shim between the brace and new butt plate to preload the butt plate by 1/8” – 3/16” at the center of the saw as shown. More preload may be required depending on welding techniques.

BRACE, SUGGESTED 2"X4"X3/8" STEEL TUBE

1/4" FILLET WELD AT EACH END OF BRACE

TACK WELD SHIMS TO BUTT PLATE AND BRACE.

•

WELDS 9 & 10 TO HAVE CONTINUOUS PATH FLOW FROM FILLET TO BEVEL WELDS AND FROM TOP SURFACE TO BOTTOM SURFACE. 3/8" FILLET WELD

DO NOT START OR STOP WELD IN THIS AREA

TOP VIEW WITH BUTT PLATE IN PLACE

SAW119

•

BUTT PLATE INSTALLATION WELDING SEQUENCE

• •

SAW118

1 1/8" - 1 3/16" AT CENTER OF SAW

1" AT EACH END OF BRACE SEE NOTE

NEW BUTT PLATE

UNDERSIDE VIEW WITH BUTT PLATE IN PLACE

PRELOAD BUTT PLATE PRIOR TO WELDING 17. Tack weld the shims to both the new butt plate and the brace.

NOTE: WELDS SEQUENCES 9 AND 10 SAW-D10

DO NOT START OR STOP WELD IN THIS AREA MAINTAIN A CONTINUOUS FLOW WHEN MAKING TRANSITION FROM TOP SURFACE TO BOTTOM SURFACE.

19. Note the location of the “NO WELD” and the transition of welding from top to bottom (weld sequences 9 and 10).

CAUTION Do not allow the bearing housing to exceed 250° F (120° C) at any time during removal or installation of butt plate.

2.59

Tigercat Saws

Service and Maintenance

20. Peen the face of each weld immediately after each pass using ¼” ball nose pneumatic peener. This will help reduce the stress build up in the weld due to cooling and minimize distortion of the butt plate.

26. Check gap between new butt plate and saw blade, it should measure between 1/8" and 3/16".

21. Recommended weld rod number ER8018E or wire number ER480S6.

22. Wait until the new butt plate and its welds are cool to the touch. Remove the brace and shims. Grind all tack welds flush.

23. Check new butt plate for flatness (maximum 1/16” variation allowed). Straighten as required.

CHECK GAP

24. Install saw blade. Refer to SAW BLADE INSTALLATION in THIS SECTION.

BUTT PLATE GAP, SEE CHART

BOLT

1/8" MAX.

SAW BLADE LOCK PIN

••

•• STORAGE LOCATION

BUTT PLATE/BLADE CLEARANCE BLADE GAP SERIES 13 1/8" 14 1/8" - 1/4" 24 1/8" - 3/16" 26 1/8" - 3/16"" 74 1/8" - 1/4"

••

CHECK GAP BETWEEN NEW BUTT PLATE AND SAW BLADE

•

SAW120/1

27. Install skis and underside guard.

SLOTTED INSPECTION COVER

SAW145

SAW BLADE

28. Ensure all guards are in place. Do not operate the saw head without the guards installed.

TYPICAL SAW BLADE LOCK PIN INSTALLATION

25. If the saw you are working on is equipped with a saw blade lock pin it must be used for this part of the procedure.

Install the saw blade lock pin using all the hardware provided. The blade lock pin must be secure. Refer to SAW BLADE LOCK PIN in THIS SECTION for instructions on the proper use of this safety device.

CAUTION Wear gloves and keep fingers clear of rotating blade and pinch points. A slowly rotating blade has enough stored energy to crush and cut hands or fingers.

2.60

Service and Maintenance

Tigercat Saws BUTT PLATE REPLACEMENT (BOLTED) - Tigercat SAW HEAD MODELS 5001 AND 5601 ON WHEEL MACHINE.

TIGHTEN THESE TWO BOLTS

REPLACEMENT NOTE FOR: WELD ON BUTT PLATE If the BOLT ON butt plate installed on earlier design saw head models DW5001, DT5001 AND DW5601 is found to be unacceptable, a WELD ON butt plate replacement kit is available. Refer to Tigercat Product Support Bulletin numbers PSB1024 and PSB1054 for details.

ADD 1/16" SHIM TO HOLD BRACKET OUT

• • • •

BUTT PLATE BRACKET

ATTACH BUTT PLATE BRACKET TO FELLING HEAD

SAW 58

BUTT PLATE INSTALLATION (BOLTED): 3. Attach butt plate bracket to felling head as shown in illustration. Add shims where shown to ensure that there is a 1/16" clearance between the bottom of the bracket and the mounting surface. While pushing bracket down, tighten only two (2) of the bolts to hold the bracket securely in place.

The butt plate and the bracket are supplied loose from the factory and must be welded together during installation. This is necessary to ensure correct alignment with the saw blade after installation.

WARNING

TIGHTEN THESE TWO BOLTS

Observe all safety precautions outlined in this manual when performing this service procedure.

•• •

• BUTT PLATE MOUNTING SURFACE (UNDERSIDE)

SAW 57

STRAIGHT EDGE

CHAMFERED EDGE OF BRACKET

CHECK BRACKET ALIGNMENT

4. To ensure the bracket is positioned correctly in relationship to the butt plate, place a straight edge up against the butt plate mounting surface and across to the chamfered edge of the bracket, if the bracket interferes with straight edge, the bracket must be ground away until there is no interference.

POSITION HEAD ON HORSES FOR BUTT PLATE INSTALLATION 1. Remove saw blade. Refer to SAW BLADE REMOVAL in THIS SECTION..

5. Install butt plate to felling head and tighten all recessed bolts.

SAW38A

2. Remove old butt plate from saw head.

2.61

Service and Maintenance

Tigercat Saws

on the butt plate where the square was located when taking the dimension.

(6) AFTER ESTABLISHING GAP, TACK WELD TWO PLACES (4) TIGHTEN THESE BOLTS

SECURE BUTT PLATE TO TABLE WITH CLAMPS AS SHOWN. NOTE: AFTER WELDING, DO NOT REMOVE CLAMPS UNTIL BUTT PLATE HAS COMPLETELY COOLED DOWN

BUTT PLATE

(5) CHECK GAP BETWEEN BUTT PLATE AND SAW BLADE

CHECK BUTT PLATE GAP 6. To check gap between butt plate and saw blade, temporarily reinstall saw blade or, install a 3/8" spacer ring to the under side of the spindle flange and extend a straight edge from the spacer out to the butt plate. Which ever method is used, the space between the butt plate and the saw blade/straight edge should measure between 1/8" and 3/16". If a discrepancy exists, make sure that the butt plate is not slightly bent or that further grinding of the bracket is necessary.

SAW 55

SAW 53

9. Remove saw blade.

10. Remove butt plate with bracket from the felling head.

11. Place butt plate assembly on a flat metal table and secure with clamps as shown, in preparation for welding. NOTE: clamping and clamp locations are important to prevent warping during welding.

12. Weld bracket to butt plate as follows: NOTE: When weld is finished it should be a 3/ 8" multi pass weld.

7. After the correct gap has been established, tack weld bracket to butt plate as shown in illustration.

(a) Make two runs along edge (1) (back side).

8. Place a square on the butt plate and up against the bracket as shown and measure the gap between the square and the bracket mounting surface at the top of the bracket, the measurement should be between 3/4" - 1" (dimension 'X').

OBSERVE THIS DIMENSION AND ADD 5/32"

CLAMP BUTT PLATE TO TABLE

BOTTOM END OF BRACKET WILL LIFT OFF BUTT PLATE DUE TO WELDING OPERATION

BUTT PLATE

•

BRACKET

•

•

• • MAKE TWO RUNS ALONG EDGE (1) SAW62

1/16" SHIM CHALK MARK THIS LOCATION FOR LATER USE

SAW 54

NOTE: as this weld is being made, the gap between the far end of the bracket and the butt plate will increase.

• •

WELDING INSTRUCTIONS (TOP VIEW)

On completion of the two runs of weld along edge (1), place the square on the butt plate at the chalk marked location and measure the distance between the edge of the square and the back of the bracket (dimension 'X'). There will be a significant increase over the previous measurement.

RECORD BRACKET ALIGNMENT DIMENSION

Add 5/32" to the actual dimension (dimension 'X') and record this total ('X'+5/32") for use later. Also, with a piece of chalk, place a mark

2.62

Service and Maintenance

Tigercat Saws TIGHTEN THESE SIX BOLTS FIRST

MOVE CLAMP TO LOCATION SHOWN AND TIGHTEN UNTIL THE EARLIER RECORDED DIMENSION (X+5/32") IS ACHIEVED

(1)

(3) (2)

CLAMP BUTT PLATE SAW56 BRACKET (b) Place a large clamp on the end of the bracket and tighten the clamp until the gap is reduced to the earlier "recorded" dimension ('X' + 5/32").

CHECK BUTT PLATE GAP 17. At this stage the gap between the butt plate and the blade at point (1) should be close to being the same as at point (2) (approx. 1/8" to 3/16").

SAW 66

(c) Continue with next run of weld on opposite side along edge (2) (front side).

18. It may be necessary to die grind the bracket holes slightly to obtain the required dimension.

CLAMP BUTT PLATE

19. Once the gap at point (1) is established, tighten the bracket retaining bolts in the sequence shown.

BRACKET

• •

•

EDGE (2)

•

20. When all the bolts are tightened the gap at point (3) should be close to points (1) and (2).

•

STITCH WELD TWO PLACES

EDGE (3)

• •

• 6

EDGE (1)

4 3

WELDING INSTRUCTIONS (TOP VIEW) (d) Complete weld on back side along edge (3) to meet edge (1) weld.

SAW62

(e) It may be necessary to make three runs to complete the weld to specifications.

7

1 5

SAW 60

13. IMPORTANT: Let butt plate cool COMPLETELY before removing clamps otherwise the butt plate assembly will warp and possibly not fit the felling head housing properly.

14. Install butt plate into saw housing. Check for clearance around spindle.

15. Tighten the six retaining bolts in the butt plate.

16. Install saw blade and tighten all saw blade retaining bolts. Refer to SAW BLADE INSTALLATION in THIS SECTION.

2.63

• 8

2

BOLT TIGHTENING SEQUENCE

21. "Stitch weld" bracket to saw housing in location shown.

Tigercat Saws

Service and Maintenance

WELD

SAW67

WELD BUTT PLATE AT RAMP

22. To complete the operation weld butt plate at ramp. This will prevent debris from wedging between ramp and butt plate.

2.64

Service and Maintenance

Tigercat Saws

SAW DRIVE DESCRIPTION The saw blade is driven by a variable displacement hydraulic motor (axial piston, bent axis) which is mounted directly above the saw blade and coupled to the saw blade through a drive spindle. Typically on Tigercat installations, A variable displacement hydraulic pump supplies oil flow to the motor via a saw control valve. The saw control valve, usually pilot operated with a built in relief, controls the flow of hydraulic oil from the pump to the motor.

A saw switch on the control panel in the cab turns the saw ON or OFF. The switch is a 2 position switch controlling the flow of electrical current to the solenoid operated saw pilot valve.

IMPORTANT: To maximize saw motor life, do not shut the engine off until the saw blade has come to a complete stop.

A check valve is installed between the pressure line and the return line of the saw motor.

SAW 28

If the main oil flow from the pump to the motor is reduced due to other machine functions being used, the check valve will allow the blade to free wheel until the pump flow increases to match the motor volume.

RETURN SIDE

•• ••

For additional information on the saw pump and saw control valves, refer to the BASE MACHINE SERVICE MANUAL.

•• CHECK VALVE

SAW SPEED ADJUSTING SCREW (MINIMUM DISPLACEMENT)

207-8A

If the engine stalls or the saw is shut off while the blade is rotating, the blade will continue to rotate and turn the motor. In this case the check valve will open and allow oil to flow from the return side to the pressure side preventing cavitation damage to the hydraulic motor. The check valve will continue to allow the blade to "free wheel" until it comes to a complete stop. Refer to STOPPING THE SAW BLADE in THIS SECTION.

PRESSURE SIDE

••

TYPICAL SAW CIRCUIT

SAW MOTOR

2.65

Service and Maintenance

Tigercat Saws SAW DRIVE HYDRAULIC SETUP AND ADJUSTMENTS 1. START-UP PROCEDURE 2. SET BEGIN OF STROKE

4. With the high pressure line disconnected at the pump, Fill as much of the line as possible with oil through the end of the hose.

Reconnect hose and check all hose connections are tight.

3. SAW SPEED ADJUSTMENT

DANGER

4. SAW CIRCUIT PRESSURE CHECK

Observe all safety precautions outlined in this manual when performing this service procedure.

1. START-UP PROCEDURE

WARNING

When a pump or motor has been removed or replaced, It is necessary to prime the circuit and remove as much air as possible from the pump, motor and lines before start-up.

1. Park machine on firm level ground, lower felling head to the ground, engage the parking brake or swing brake and stop engine. Block the wheels or tracks. Properly install the saw blade guard using all hardware provided.

Guard must be secure.

2. Fill the pump case with the recommended filtered hydraulic oil through the highest case drain port.

3. Fill the motor case through the highest case drain port. As the motor is being filled, rotate the saw blade by hand to allow better entry of the oil to the lower part of the motor.

6. Raise saw head 6" off the ground and position wrist in the vertical plane (if applicable).

7. Warn all persons to stay clear of the area, especially the discharge side of saw head.

8. Start engine and place throttle in IDLE position.

9. Turn saw switch ON. 10. Operate saw with engine at LOW IDLE for 10 minutes. During the 10 minute idle period occasionally crack open the case drain connection on the motor to allow air to escape.

BEGIN OF STROKE ADJUSTING SCREW

•

MAXIMUM DISPLACEMENT ADJUSTING SCREW NOT USED IN THIS APPLICATION. DIM. 'X' FACTORY SET TO 11 MM. WITH 50 MM ADJUSTING SCREW. (USED TO PLUG HOLE AND HAS NO EFFECT AT ANY ADJUSTMENT).

Carry out this procedure with care. Make sure that there are no chips or blocks of wood remaining in the saw housing that could be thrown out by the rotating blade.

5. Clear area under saw of all loose dirt, stones, wood and debris.

PORT 'G' • 6 ORB 1/4" ALLEN KEY

PORT 'X'

- 3MM ALLEN KEY - 10MM WRENCH

• 'A' PORT 'A'

PORT 'B'

AQ013-4

MINIMUM DISPLACEMENT ADJUSTING SCREW THE DIMENSION 'X' WILL - 6MM ALLEN KEY VARY DEPENDING ON SAW - 19MM WRENCH HEAD MODEL. ~ SEE TEXT

• 'X'

AQ013-5

SAW DRIVE MOTOR (160CC) 2.66

VIEW 'A'

PORT 'M1' • 6 ORB 1/4" ALLEN KEY

Service and Maintenance

Tigercat Saws 2. SET BEGIN OF STROKE

7. Start engine and move throttle to half speed.

NOTE: The following procedure is an initial setup and only applies if a new or replacement motor has been installed. When performing a regular periodic maintenance check of the hydraulic pressures, refer to SAW CIRCUIT PRESSURE CHECK in THIS SECTION.

8. Adjust saw pump POR to 3100 psi on gauge at saw valve or motor 'G' port. (same value as motor begin of stroke).

9. Loosen jamnut and turn motor "begin of stroke" adjusting screw OUT until gauge at motor 'M' port reads 0 psi. Now turn adjusting screw IN until the pressure starts to rise (500800 psi.). Lock jamnut on adjusting screw.

1. Park machine on firm level ground, lower felling head to the ground, engage the parking brake or swing brake and stop engine. Block the wheels or tracks. Properly install the saw blade guard using all hardware provided.

Guard must be secure.

PORT 'G'

BEGIN OF STROKE ADJUSTING SCREW

PORT 'X'

2. Ensure that hydraulic oil is at operating temperature.

3. Remove saw motor cover.

4. Install a 0-5000 psi pressure gauge in the SAW CONTROL VALVE gauge test port or the 'G' PORT on the SAW MOTOR. (to read system pressure).

REAR VIEW OF MOTOR

MAXIMUM DISPLACEMENT ADJUSTING SCREW (NOT USED) MOTOR CASE DRAIN CONNECTION (PORT 'T')

PORT 'M'

BEGIN OF STROKE ADJUSTING SCREW (BEGIN OF REGULATION)

207-1A

•

10. Re-adjust pump POR to 3600 psi on gauge at saw valve or motor 'G' port.

11. Turn the saw OFF and allow saw blade to come to a COMPLETE STOP. DO NOT exit the cab or approach the felling head until the blade is stopped.

MINIMUM DISPLACEMENT ADJUSTING SCREW

•

12. Move throttle control to IDLE. Stop engine.

13. Remove all pressure gauges and reinstall plugs.

FRONT VIEW OF MOTOR

14. Remove locking bolt from saw blade guard.

SAW MOTOR PORT 'M' LOCATION 5. Install a 0-5000 psi pressure gauge in the 'M' port on the SAW MOTOR. SAW-D01

LOCKING BOLT

• • SAW 63

SAW BLADE GUARD

BLOCK SAW BLADE

6. Block saw blade to prevent it from turning using the locking bolt provided..

2.67

Service and Maintenance

Tigercat Saws 3. SAW SPEED ADJUSTMENT

6. ON EARLIER MODEL FELLING HEADS:

1. Park machine on firm level ground, lower felling head to the ground, engage the parking brake or swing brake and stop engine. Block the wheels or tracks. Properly install the saw blade guard using all hardware provided.

Guard must be secure.

Raise and tilt the felling head up to allow access to the underside of the saw blade.

Affix a piece of reflective tape to the under side of the blade.

ON LATER MODEL FELLING HEADS: Remove the clean-out access cover on top of the saw housing and affix the reflective tape to the top of the blade as shown.

2. Ensure that hydraulic oil is at operating temperature.

3. Remove saw motor cover.

REMOVE CLEANOUT COVER AND AFFIX REFLECTIVE TAPE TO BLADE AS SHOWN

PORT 'M'

•• •• MINIMUM DISPLACEMENT ADJUSTING SCREW

• SAW-D01

SAW-D22

FRONT VIEW OF MOTOR

LATER MODEL SAW HEADS WITH CLEAN-OUT COVER

DANGER

SAW SPEED ADJUSTMENT

Observe all safety precautions outlined in this manual when performing this service procedure.

4. Remove the minimum displacement adjusting screw from the side of the motor housing and measure its length.

WARNING

5. Reinstall the minimum displacement adjusting screw and locknut into the motor housing and set Dimension 'X' to 9.5 mm for a 110 mm screw.

Carry out this procedure with care. Make sure that there are no chips or blocks of wood remaining in the saw housing that could be thrown out by the rotating blade.

For different length screws, measure the length of the screw and add or subtract the difference based on the data given here.

7. Clear area under saw of all loose dirt, stones, wood and debris.

8. Raise saw head 6" off the ground and position wrist in the vertical plane (if applicable).

'X'

9. Warn all persons to stay clear of the area, especially the discharge side of saw head.

10. Start engine and place throttle in FULL position.

11. Turn saw switch ON.

DIM X

12. Using an electronic photo tachometer in conjunction with the reflective tape, check blade speed. Refer to SAW BLADE SPECIFICATION CHART in THIS SECTION for correct blade speed.

TYPICAL 'X' DIMENSION FOR MIN. DISPLACEMENT ADJUSTING SCREW

2.68

Service and Maintenance

Tigercat Saws 13. If blade speed requires adjustment; Turn minimum displacement adjusting screw on motor OUT (counter-clockwise) to increase speed or IN (clockwise) to decrease speed.

14. This motor also incorporates a "MAX." displacement adjusting screw on the opposite side of the motor to the "MIN." displacement screw. This "MAX." displacement screw is not used for this application. The adjusting screw is 50 mm long and the dimension "X" is factory set to 11 mm. The 50 mm long screw is too short to have any effect on the motor setting and is only used as a plug. It should not be touched.

2.69

Service and Maintenance

Tigercat Saws 4. SAW CIRCUIT PRESSURE CHECK

PORT 'G'

BEGIN OF STROKE ADJUSTING SCREW

PORT 'X'

SAW MOTOR BEGIN OF STROKE ...... 3100 PSI SAW PUMP POR. ................................ *3600 PSI SAW MAIN RELIEF ............................. *3900 PSI * Refer to BASE MACHINE SERVICE MANUAL for these pressure setting procedures.

1. Park machine on firm level ground, lower felling head to the ground, engage the parking brake or swing brake and stop engine. Block the wheels or tracks. Properly install the saw blade guard using all hardware provided.

Guard must be secure.

MOTOR CASE DRAIN CONNECTION (PORT 'T')

2. Install a 0-5000 psi pressure gauge in the saw control valve gauge test port or the 'G' port on the saw motor (to read system pressure).

BEGIN OF STROKE ADJUSTING SCREW (BEGIN OF REGULATION)

207-1A

TIME SPAN

DANGER Observe all safety precautions outlined in this manual when performing this service procedure.

PRESSURE READING

HYDRAULIC SITUATION

1-12 secs 3600 -3500 psi (main relief setting) *12-14 secs 3100 -2900 psi (begin of stroke) 14-32 secs 1700 -1100 psi (Blade reaches full speed) 6. Start engine and place throttle in FULL position.

WARNING Carry out this procedure with care. Make sure that there are no chips or blocks of wood remaining in the saw housing that could be thrown out by the rotating blade.

3. Clear area under saw of all loose dirt, stones, wood and debris.

7. Turn saw ON and observe the pressure gauge reading as the blade increases in speed. They should be as shown in the following chart and corresponding graph: The blade should reach full speed after approximately 25 to 30 seconds.

4. Raise saw head 6" off the ground and position wrist in the vertical plane (if applicable).

*

5. Warn all persons to stay clear of the area, especially the discharge side of saw head.

THIS IS A GENERIC CHART, VALUES MAY VARY SLIGHTLY.

MAXIMUM DISPLACEMENT ADJUSTING SCREW (NOT USED)

REAR VIEW OF MOTOR

If "begin of stroke" reading is between 3100 - 2900 psi., no adjustment is necessary.

BEGIN OF STROKE

BLADE REACHES FULL SPEED

PRESSURE (PSI)

MAIN RELIEF SETTING

TIME (SECONDS) SAW61

SAW BLADE ACCELERATION TIME AND PRESSURE CURVE 2.70

Service and Maintenance

Tigercat Saws *

If it is below 2900 psi turn "begin of stroke" adjusting screw OUT slightly and re-check.

*

If it is above 3100 psi turn "begin of stroke" adjusting screw IN slightly and recheck.

NOTE: Values may vary slightly from those shown above.

8. Turn the saw OFF and allow saw blade to come to a COMPLETE STOP. DO NOT exit the cab or approach the felling head until the blade is stopped.

9. Move throttle control to IDLE. Stop engine.

10. Remove all pressure gauge and reinstall cap.

2.71

Service and Maintenance

Tigercat Saws TROUBLE SHOOTING BLADE SPEED

TEST CHECK VALVE

To verify correct blade speed, check the following:-

1. Park machine on firm level ground, lower felling head to the ground, engage the parking brake or swing brake and stop engine. Block the wheels or tracks. Properly install the saw blade guard using all hardware provided.

Guard must be secure.

1. "Begin of stroke" pressure is set too low: Check begin of stroke pressure. Refer to SAW CIRCUIT PRESSURE CHECK in THIS SECTION. Readjust pressure if necessary, as described in SET BEGIN OF STROKE in THIS SECTION. 2. Saw drive check valve faulty: Verify that the check valve is not leaking by performing the test shown below. Refer to TEST CHECK VALVE in THIS SECTION.

•

Replace check valve as required.

3. Motor stroking piston seized in maximum displacement position: May be Indicated by failure to reach full blade speed.

Repair or replace motor as required.

•

LOCKING BOLT

SAW BLADE GUARD

BLOCK SAW BLADE

SAW 63

2. Block saw blade to prevent it from turning using the locking bolt provided.

4. Loss of pump flow: May be Indicated by failure to reach full blade speed.

RETURN SIDE

• ••

•

Repair or replace the pump as required.

5. Excessive motor case drain: Verify case drain volume by performing CHECK MOTOR CASE DRAIN FLOW in THIS SECTION.

MOTOR PORT 'A'

•

••

PLUG HOSE END DISCONNECT AND PLUG RETURN HOSE.

Repair or replace the motor as required.

207-12A

CHECK VALVE TEST

•• •

PRESSURE SIDE

CHECK VALVE

• DISCONNECT STEEL TUBE FROM CHECK VALVE

3. Disconnect main RETURN hose at motor port 'A' and plug hose as shown (Tigercat wheel machine installation shown) NOTE: For track machine installations the PRESSURE and RETURN hoses are located on top of the motor port manifold blocks.

4. Disconnect tube from bottom of check valve as shown.

5. Start engine and move throttle to 1/4 speed.

6. Turn saw switch ON. 7. Any oil flow from the bottom of the check valve indicates that the check valve is not closing properly and should be replaced, or it has been installed the wrong way.

8. Oil flow from the motor return port 'A', indicates that the motor control valve inside the motor is leaking. NO OIL from either of these places 2.72

Service and Maintenance

Tigercat Saws indicates that the check valve and motor control valve are operating properly.

9. Reconnect all hoses and tubes taking care not to allow any dirt or contaminants to enter the hydraulic lines.

10. The saw blade locking bolt and guard may be removed. Clean up any oil spills.

CHECK MOTOR CASE DRAIN FLOW

REAR VIEW OF MOTOR

1. Park machine on firm level ground, lower felling head to the ground, engage the parking brake or swing brake and stop engine. Block the wheels or tracks. Properly install the saw blade guard using all hardware provided.

Guard must be secure.

2. Trace the case drain hose from the motor 'T' port to an accessible bulkhead connection on the machine, see fig 207-17A. DISCONNECT HOSE AND PLUG FITTING

•• • •

•• • •

207-17A

DRAIN HOSE

•

SAW MOTOR CASE DRAIN 207-1A PORT 'T' 5. Start engine and move throttle to FULL speed.

•

6. Turn saw switch ON. 7. Measure the amount of oil flowing from the hose into the bucket. Case drain leakage up to 2 gallons per minute is acceptable.

SAW MOTOR CASE DRAIN HOSE

OPERATOR'S CAB (FRONT)

MOTOR CASE DRAIN CONNECTION (PORT 'T')

TO SAW MOTOR

8. Turn saw OFF and stop engine. Unblock saw blade and rotate blade 1/3 turn. Repeat steps (3) thru (7) two more times after rotating the saw blade 1/3 of a turn. This will test ALL of the pistons in the motor's rotating group.

CAUTION

BULKHEAD

Wear gloves and keep fingers clear of rotating blade and pinch points. A slowly rotating blade has enough stored energy to crush and cut hands or fingers.

FRONT CHASSIS

TYPICAL LOCATION ON A TIGERCAT 720/720B/726

CASE DRAIN HOSE BULKHEAD POSITION (Tigercat WHEEL MACHINES) On Tigercat track machines, this connection is located on a bulkhead at the end of the stick boom.

9. If leakage is in excess of 2 gallons/minute, repair/replace the motor.

10. After these test have been carried out, make sure that all temporary plugs have been removed, all hoses have been reconnected and all safety guarding has been reinstalled.

Disconnect the hose at that location and plug the fitting. Make sure that the hose is long enough to place the end into a clean bucket. If length is going to be a problem, disconnect the existing case drain hose from the motor 'T' port and plug the hose. Temporarily connect a four foot length of hose in it's place.

•

3. Block saw blade to prevent it from turning using the locking bolt provided..

•

4. Place end of case drain hose into a clean bucket.

LOCKING BOLT

SAW BLADE GUARD SAW 63

2.73

BLOCK SAW BLADE

Service and Maintenance

Tigercat Saws WRIST ASSEMBLY – 30 DEGREES DESCRIPTION This wrist assembly is designed to rotate the felling head a maximum of 30°. Note: Left, right, clockwise and counter-clockwise directions are always as viewed by the machine operator when seated in the cab facing forward.

A wrist bearing is installed with the outer race bolted to the back of the felling head and the inner race bolted to the boom adapter.

One hydraulic wrist cylinder is used to provide the wrist action. The base end of the cylinder is attached to the boom adapter and the rod end is attached to the felling head. A restrictor fitting is installed at the cylinder end of each line supplying hydraulic oil from the wrist control valve to control the flow of hydraulic oil to the wrist cylinder.

There are a total of two grease fittings on the wrist cylinder and four on the wrist bearing. Refer to LUBRICATION POINTS, MODEL ST5400 SAW in THIS SECTION.

2.74

Service and Maintenance

Tigercat Saws WRIST CYLINDER

•

FELLING HEAD FRAME

•

WRIST BEARING

•

••

••

RESTRICTOR

• •

• ••

GREASE SEAL

SPACER

ADAPTER PLATE (MAY BE PART OF FELLING HEAD FRAME)

• BOOM ADAPTER

20185BIL

WRIST ASSEMBLY - 30 DEGREES

2.75

Service and Maintenance

Tigercat Saws HYDRAULIC CIRCUIT DESCRIPTION

SPOOL STOP

The components of this circuit are; a fixed displacement (attachment) pump, two solenoid operated pilot valves, wrist spool of the control valve and one wrist cylinder. Note that the wrist spool is located on either the wrist/clamps control valve or the main control valve depending on which carrier the saw is used.

SPOOL

•

• •

Pressing one of the WRIST trigger switches located on the joystick handles energizes either the wrist clockwise or wrist counter-clockwise solenoid operated pilot valves on the pilot manifold. The pilot valves direct pilot oil from the manifold to either end of the spool in the WRIST of the control valve.

• PILOT END CAP

LOCKNUT/SEAL 90136-5

SPOOL STOPS WRIST CONTROL VALVE

SPOOL TRAVEL STOP • 19mm WRENCH • 6mm ALLEN KEY

When the spool shifts, oil from the fixed displacement pump is directed through the orifice fitting to one end of the cylinder. This rotates the felling head to either the counter clockwise or clockwise direction.

•

•

ADJUSTING SCREW • 5mm ALLEN KEY

Return oil from the cylinder is directed back through the WRIST control valve where it is returned to tank.

•

PORT RELIEF VALVE

MAIN VALVE BODY

90744-3

2.76

• •

LOCKNUT • 17mm WRENCH

PILOT END CAP

• SPOOL STOPS MAIN CONTROL VALVE

Service and Maintenance

Tigercat Saws

SAW143

SCHEMATIC DIAGRAM - 30° WRIST (860 INSTALLATION SHOWN) 2.77

Service and Maintenance

Tigercat Saws

ADJUST OIL FLOW TO 30° WRIST (CYCLE TIME)

WRIST CYCLE TIMES 30° WRIST The following instructions give typical cycle time and is based on recommended factory settings. It should be noted that over adjusting to provide faster cycle times could increase the stress on components and the hydraulic system.

NOTE: Constant loosening and tightening of the locknut (sealnut) on the adjusting screws will eventually cause the seal in the nut to break down and leak. Because of this it is best to keep the adjustment procedure brief.

Refer to the machine SERVICE MANUAL for more detailed information regarding the wrist control valve port relief pressure settings for your machine.

WRIST PORT RELIEF VALVES

GAUGE TEST PORT

•• •• • •• • •

MID INLET VALVE SECTION

••

•

SAW SECTION

SAW-30

Observe all safety precautions outlined in this manual and the base machine service manual when performing this procedure.

A stopwatch will be required for this procedure.

WRIST SPOOL SECTION

1. Park machine on firm level ground, lower felling head to the ground, engage swing brake and stop engine. Block tracks.

Properly install the saw blade guard using all hardware provided. Guard must be secure.

• •

MID INLET MAIN RELIEF VALVE

DANGER

2. Hydraulic oil must be at operating temperature.

3. Start engine and place engine throttle control in FULL position.

TRAVEL STOP FLOW ADJUSTING SCREW (2 PLACES)

4. Raise felling head and position head so that the wrist is in the vertical plane.

WRIST/CLAMPS CONTROL VALVE (STANDARD VALVE 860 SHOWN )

WRIST CCW PORT RELIEF

••

FLOW ADJUSTING SCREW FOR PORT 'A' (TYPICAL)

WARNING

CONTROL VALVE MANIFOLD

The felling head will be rotated side to side during this procedure. Operator must ensure that no one is near the felling head during this procedure.

The swing brake should be applied at all times during this procedure.

•• ••

5. Rotate head FULLY counter-clockwise.

B

B

B

B

A

A

A

A

6. Rotate the head FULLY clockwise and use stop watch to measure the time for a FULL clockwise rotation (30°).

7. The cycle time should be 3 ½ seconds for a FULL stop to stop clockwise rotation.

• WRIST CW PORT RELIEF 830D22A

MAIN CONTROL VALVE (830 SHOWN)

2.78

Service and Maintenance

Tigercat Saws FOR 822/830 – WRIST SPOOL SECTION ON THE MAIN CONTROL VALVE 8. To adjust cycle times use flow adjusting screws.

9. Loosen locknut and turn flow adjusting screw IN to slow down and OUT to speed up.

Tighten locknut on adjusting screw and recheck times.

10. Repeat this procedure rotating the felling head in the opposite direction to measure the speed in the counter-clockwise direction.

FOR 845/845B/860/870/870B – WRIST SPOOL SECTION ON WRIST/CLAMPS VALVE The 30° wrist speed is not adjustable on these models of machines due to the type of the wrist control valve used.

2.79

Service and Maintenance

Tigercat Saws WRIST ASSEMBLY - 110 DEGREES DESCRIPTION This wrist assembly is designed to rotate the felling head in any one of six different counter-clockwise (ccw)/clockwise (cw) combinations to a maximum of 110°. Note: Left, right, clockwise and counterclockwise directions are always as viewed by the machine operator when seated in the cab facing forward.

The boom adapter incorporates six cylinder attachment point holes, three on each side of the centre line. The wrist angle can be changed to any one of six different settings by varying the position of the cylinder rods on the boom adapter.

Refer to figures 130 to 136.

1

A wrist bearing is installed with the outer race bolted to the back of the felling head and the inner race bolted to the boom adapter.

Two hydraulic wrist cylinders are used to provide the wrist action. The base end of the cylinders are attached to the base of the felling head frame and the rod ends are attached to the boom adapter. On some models a restrictor fitting is installed at the manifold end of each line supplying hydraulic oil from the wrist control valve to the wrist manifold to control the flow of hydraulic oil to the wrist cylinders.

SAW131

HOLES 1 AND 6 20° CCW & 90° CW

SAW132

SAW134

HOLES 1 AND 5 20° CCW & 45° CW

SAW135

2

5 3

SAW130

6

CYLINDER ATTACHMENT POINTS

There are a total of four grease fittings on the two wrist cylinders and four for the wrist bearing.

Refer to LUBRICATION POINTS, MODEL ST5400 SAW in THIS SECTION.

HOLES 2 AND 5 45° CCW & 45° CW

HOLES 2 AND 4 45° CCW & 20° CW 2.80

4

SAW133

SAW136

HOLES 3 AND 4 90° CCW & 20° CW

HOLES 1 AND 4 20° CCW & 20° CW

Service and Maintenance

Tigercat Saws WRIST BEARING - OUTER RACE

WRIST BEARING - INNER RACE

• •

LINER HOSE GUARD

BOOM ADAPTER

TILT LINK ATTACHMENT PIN TO BULKHEAD ON BOOM (WRIST CONTROL VALVE)

• • •

•

•

• • •

• •

MANIFOLD FELLING HEAD

ORIFICE (SOME MODELS )

BOOM ATTACHMENT PIN

•

NOTE: APPLY SHIMS TO CENTER CYLINDER ROD BETWEEN BOOM ADAPTER LUGS.

•

•

• • WRIST CYLINDERS

SAW129

WRIST ASSEMBLY - 110 DEGREES 2.81

Service and Maintenance

Tigercat Saws HYDRAULIC CIRCUIT DESCRIPTION

SPOOL STOP

The components of this circuit are; a fixed displacement (attachment) pump, two solenoid operated pilot valves, wrist spool of the control valve and two wrist cylinders. Note that the wrist spool is located on either the wrist/clamps control valve or the main control valve depending on which carrier the saw is used.

SPOOL

•

• •

On some models a restrictor (orifice) fitting is installed at the manifold end of each line supplying hydraulic oil from the wrist control valve to the wrist manifold to control the flow of hydraulic oil to the wrist cylinders.

• PILOT END CAP

LOCKNUT/SEAL 90136-5

SPOOL STOPS WRIST CONTROL VALVE

SPOOL TRAVEL STOP • 19mm WRENCH • 6mm ALLEN KEY

Pressing one of the WRIST trigger switches located on the joystick handles energizes either the wrist clockwise or wrist counter-clockwise solenoid operated pilot valves on the pilot manifold. The pilot valves direct pilot oil from the manifold to either end of the spool in the WRIST of the control valve.

•

•

ADJUSTING SCREW • 5mm ALLEN KEY

When the spool shifts, oil from the fixed displacement pump is directed through the orifice fitting to the wrist manifold. The wrist manifold divides the flow of oil to the base end of one cylinder and the rod end of the other cylinder or vice-versa to ROTATE the felling head either clockwise or counter-clockwise.

•

PORT RELIEF VALVE

MAIN VALVE BODY

The speed of rotation of the wrist action is adjustable and is controlled by spool stops in the pilot end caps of wrist spool section of the wrist/ clamps valve or the main control valve.

90744-3

The speed from stop to stop should be set the same as the TILT FORWARD time of 5.6 seconds, times may vary for different machines.

Screw the stop IN to slow down and OUT to speed up.

Return oil from the cylinders is directed back through the WRIST control valve where it is returned to tank.

2.82

• •

LOCKNUT • 17mm WRENCH

PILOT END CAP

• SPOOL STOPS MAIN CONTROL VALVE

Service and Maintenance

Tigercat Saws

SAW137

SCHEMATIC DIAGRAM - 110° WRIST (860 INSTALLATION SHOWN) 2.83

Service and Maintenance

Tigercat Saws

ADJUST OIL FLOW TO 110° WRIST (CYCLE TIME)

WRIST CYCLE TIMES 110° WRIST The following instructions give typical cycle times and are based on recommended factory settings.

It should be noted that over adjusting to provide faster cycle times could increase the stress on components and the hydraulic system.

NOTE: Constant loosening and tightening of the locknut (sealnut) on the adjusting screws will eventually cause the seal in the nut to break down and leak. Because of this it is best to keep the adjusting procedure brief.

Refer to the machine SERVICE MANUAL for more detailed information regarding the wrist control valve port relief pressure settings for your machine.

DANGER Observe all safety precautions outlined in this manual and the base machine service manual when performing this procedure.

A stopwatch will be required for this procedure.

WRIST PORT RELIEF VALVES

GAUGE TEST PORT

• • • • • ••

MID INLET VALVE SECTION

•

••

SAW SECTION

SAW-30

2. Hydraulic oil must be at operating temperature.

•• ••

MID INLET MAIN RELIEF VALVE

1. Park machine on firm level ground, lower felling head to the ground, engage swing brake and stop engine. Block tracks.

Properly install the saw blade guard using all hardware provided. Guard must be secure.

WRIST SPOOL SECTION

3. Start engine and place engine throttle control in FULL position.

4. Raise felling head and position head so that the wrist is in the vertical plane.

TRAVEL STOP FLOW ADJUSTING SCREW (2 PLACES)

WARNING

WRIST/CLAMPS CONTROL VALVE (STANDARD VALVE 860 SHOWN )

WRIST CCW PORT RELIEF

•

FLOW ADJUSTING SCREW FOR PORT 'A' (TYPICAL)

The felling head will be rotated side to side during this procedure. Operator must ensure that no one is near the felling head during this procedure.

The swing brake should be applied at all times during this procedure.

CONTROL VALVE MANIFOLD

••

•

5. Rotate head FULLY counter-clockwise.

6. Rotate the head FULLY clockwise and use stop watch to measure the time for a FULL clockwise rotation (110°).

B

B

B

B

A

A

A

A

NOTE: When extending or retracting cylinders to record the time, stop the cylinder just before it gets to the end of it's stroke rather than let it bottom out and impose unnecessary loads on the cylinder parts and boom structures.

••

7. The cycle time should be as follows for a FULL clockwise rotation.

40° ROTATION .....

65° ROTATION .....

90° ROTATION .....

110° ROTATION ...

WRIST CW PORT RELIEF 830D22A

MAIN CONTROL VALVE (830 SHOWN)

2.84

3 4 5 6

seconds stop to stop seconds stop to stop seconds stop to stop seconds stop to stop

Service and Maintenance

Tigercat Saws FOR 822/830 - WRIST SPOOL SECTION ON THE MAIN CONTROL VALVE 8. To adjust cycle times use flow adjusting screws. Note: The 'A' port is connect to the WRIST CCW function and the 'B' port is connected to the WRIST CW function.

9. Loosen locknut and turn flow adjusting screw IN (CW) to slow down and OUT (CCW) to speed up. Tighten locknut on adjusting screw and recheck times.

FOR 845/845B/860/870/870B - WRIST SPOOL SECTION ON WRIST/CLAMPS VALVE 8. To adjust cycle times use wrist spool travel stop flow adjusting screws.

9. Loosen locknut and turn flow adjusting screw IN (CW) to slow down and OUT (CCW) to speed up. Tighten locknut on adjusting screw and recheck times.

10. Repeat this procedure rotating the felling head in the opposite direction to measure the speed in the counter-clockwise direction.

2.85

Service and Maintenance

Tigercat Saws WRIST ASSEMBLY - 340 DEGREES

The wrist bearing spacer is sandwiched between the wrist bearing and the back of the felling head.

It is located in the correct position on the felling head by two dowel pins.

DESCRIPTION This wrist assembly is designed to rotate the felling head a full 340°, 170° each side of the vertical position. Note: Left, right, clockwise and counter-clockwise directions are always as viewed by the machine operator when seated in the cab facing forward

Five grease fittings are provided for lubrication of the wrist, two for the wrist bearing and one each for the three pinions. Refer to LUBRICATION POINTS, MODEL ST5400 SAW in THIS SECTION.

A wrist bearing with teeth on the outer race is bolted to the back of the felling head, the inner race is bolted to the boom adapter.

Lubrication of the output shaft bearings is accomplished by using case drain oil from the hydraulic motors. For additional information refer to WRIST HYDRAULIC CIRCUIT DESCRIPTION in THIS SECTION.

Three hydraulic motors are mounted to three output shaft housings which are bolted to the back of the boom adapter. The hydraulic motor shaft is connected to each output shaft by splines, the pinion end of the output shafts are meshed with the gear teeth on the outer race of the wrist bearing. Running all three motors simultaneously causes the pinions on the output shafts to rotate the wrist bearing outer race and rotate the felling head. To prevent the felling head from exceeding the 340° rotation, a stop at the top of the wrist bearing spacer will make contact with a stop block positioned at the bottom of the boom adapter.

WRIST MOTOR

WRIST MOTORS

CASE PRESSURE TEST PORT (ON OUTPUT SHAFT HOUSING)

DISTRIBUTION MANIFOLD

•• •• •• ••

•

'A'

'B'

•• ••

••

WRIST CW CONNECTION

WRIST MOTOR DRAIN CONNECTION

WRIST CCW CONNECTION

SAW-D12

•• WRIST ASSEMBLY - 340 DEGREES

2.86

•

SAW MOTOR RETURN CONNECTION

Service and Maintenance

Tigercat Saws

WRIST BEARING LUBRICATION FITTINGS WRIST BEARING INNER RACE

• •

WRIST BEARING SPACER - STOP (MAY BE PART OF THE FELLING HEAD STRUCTURE)

FELLING HEAD

PLUGS

PINION COVER/ GREASE RETAINER

DOWEL PINS

WRIST BEARING OUTER RACE

WRIST BEARING INNER RACE

•

BOOM ADAPTER

•

2 - GREASE FITTINGS

•

•

•

HOSE GUARD MOTOR COVER

•

•

•

BOOM ADAPTER

•

•

•

•

•

PINION COVER/ GREASE RETAINER

• •

•

•

•

•

MOTOR COVER

• HOSE GUIDE STOP BLOCK

OUTPUT SHAFT ASSEMBLY HYDRAULIC MOTOR

SAW-124

WRIST ASSEMBLY - 340 DEGREES

2.87

LINER, HOSE GUARD

Service and Maintenance

Tigercat Saws HYDRAULIC CIRCUIT DESCRIPTION (TYPICAL) The components of this circuit are; a fixed displacement (attachment) pump, two solenoid operated pilot valves and the wrist spool of the control valve. Note that the wrist spool is located on either the wrist/clamps control valve or the main control valve depending on which carrier the saw is used. Mounted to the boom adapter are three gerotor type hydraulic motors and a distribution manifold containing two flow control valves, a crossover relief valve and two check valves.

UPPER TEST CROSSLINE RELIEF VALVE PORT CONNECTION

• ••

••

• ••

••

'B' PORT

Speed of rotation of the wrist action is adjustable and controlled by spool stops in the pilot end caps of the wrist spool section of the wrist/clamps valve or the main control valve. Additional control of rotation speed is provided by flow control valves in the distribution manifold. Some early models, not equipped with spool stops, rely entirely on the distribution manifold to control wrist rotation speed.

Two adjustable flow control valves are located on the distribution manifold, one is installed in each line between the motors and the wrist/clamps valve to control the speed at which the felling head rotates.

The flow control valves allow free flow to the wrist motors and restrict flow on the output side of the motors to help prevent cavitation. Also on the distribution manifold is an adjustable crossline relief valve which provides a cushioning effect on the high forces that occur when starting and stopping rotation of a "loaded" felling head. In the event that heavy loads cause the felling head to over power the wrist motors during rotation, additional make-up oil is drawn from the saw motor return line to prevent cavitation of the wrist motors. A check valve is installed in each bypass line from the saw motor return line (located on the distribution manifold) to control flow direction.

Most of the return oil from the motors is directed back through the WRIST valve where it is returned to tank.

For lubrication purposes a small percentage of oil is allowed to leak into the case of the motors and into the output shaft housing, filling them with hydraulic oil to lubricate the bearings. A drain line connected to each of the three output shaft housings directs 2.88 surplus oil back to tank.

CHECK VALVE, SAW RETURN

•

'A' PORT

Pressing one of the WRIST trigger switches located on the joystick handles energizes either the wrist clockwise or wrist counter-clockwise solenoid operated pilot valves on the pilot manifold. The pilot valves direct pilot oil from the manifold to either end of the wrist spool section of the control valve.

When the spool shifts, oil from the fixed displacement pump is directed simultaneously via the distribution manifold to either side of the three hydraulic motors to ROTATE the felling head head either clockwise or counter-clockwise.

FLOW CONTROL VALVE CCW ROTATION

•

LOWER TEST PORT CONNECTION FLOW CONTROL VALVE CW ROTATION

CHECK VALVE, SAW RETURN

••

SAW-D13

WRIST HYDRAULIC DISTRIBUTION MANIFOLD SPOOL STOP

SPOOL

•

• •

• PILOT END CAP

LOCKNUT/SEAL 90136-5

SPOOL STOPS WRIST CONTROL VALVE

SPOOL TRAVEL STOP • 19mm WRENCH • 6mm ALLEN KEY

•

•

ADJUSTING SCREW • 5mm ALLEN KEY

•

PORT RELIEF VALVE

MAIN VALVE BODY

90744-3

• •

LOCKNUT • 17mm WRENCH

PILOT END CAP

• SPOOL STOPS MAIN CONTROL VALVE

Service and Maintenance

Tigercat Saws

SAW-125

SCHEMATIC DIAGRAM - 340° WRIST (860 INSTALLATION SHOWN)

2.89

Service and Maintenance

Tigercat Saws INITIAL START-UP PROCEDURE When installing a wrist assembly for the first time or after performing a major service where hydraulic hoses have been disconnected, the wrist motors and output shaft housings must be filled with hydraulic oil prior to start-up.

DISTRIBUTION MANIFOLD

••

••

A newly installed wrist assembly must be lubricated before being used, Refer to LUBRICATION POINTS, MODEL ST5400 SAW in THIS SECTION.

WRIST MOTOR

••

••

MOTOR CASE DRAIN PLUG

•• DRAIN FITTING ON OUTPUT SHAFT

OUTPUT SHAFT SAW-D14

DRAINS - MOTOR CASE AND OUTPUT SHAFT

WRIST MOTOR

Observe all safety precautions outlined in this manual and the base machine service manual when performing this procedure.

This can be accomplished by pressurizing the hydraulic tank. Then loosen all three drain line fittings on the output shaft housings and also the case drain plugs on the three motors. Hydraulic oil under pressure from the hydraulic tank will flow backwards through the drain lines to fill the output shaft housings and motors and bleed the air from the system. When hydraulic oil appears at the fittings, tighten the fittings. Refer to BASE MACHINE SERVICE MANUAL for HYDRAULIC TANK PRESSURIZATION procedure.

•

TYPICAL FOR ALL THREE MOTORS

DANGER

There are two 90° fittings below the lower right hand motor. The left fitting (closest to the wrist center) is the SAW MOTOR RETURN CONNECTION. The right fitting (furthest from the wrist center) is the WRIST MOTOR DRAIN WRIST MOTORS

CASE PRESSURE TEST PORT (ON OUTPUT SHAFT HOUSING)

DISTRIBUTION MANIFOLD

• •• • •

••

'A'

'B'

• •

•

WRIST CW CONNECTION

WRIST MOTOR DRAIN CONNECTION

WRIST CCW CONNECTION

SAW-D12

• WRIST ASSEMBLY - 340 DEGREES 2.90

••

SAW MOTOR RETURN CONNECTION

Service and Maintenance

Tigercat Saws

WARNING

CAUTION

The felling head will be rotated side to side during this procedure. Operator must ensure that no one is near the felling head during this procedure.

The swing brake should be applied at all times during this procedure.

When installing or re-installing a 340° wrist it is very important that the SAW MOTOR RETURN and WRIST MOTOR DRAIN lines be connected correctly. If these lines are connected incorrectly failure of the wrist motors and/or wrist output shaft assemblies will result.

CONNECTION. It is very important that the SAW MOTOR RETURN and WRIST MOTOR DRAIN lines be connected correctly. If these lines are connected incorrectly failure of the wrist motors and/or wrist output shaft assemblies will occur. To verify correct connection always check case pressure in the output shaft housings before operating the saw under load.

DANGER Carry out this procedure with care. Make sure that there are no chips or blocks of wood remaining in the saw housing that could be thrown by the rotating blade.

4. Start engine and place throttle control in FULL position.

5. Raise head slightly off the ground and tilt forward so that head is horizontal.

6. Rotate wrist FULLY counter-clockwise then rotate wrist FULLY clockwise.

TEST PORT

7. Case pressure reading should not be higher than 20 psi. If pressure is too high check WRIST MOTOR DRAIN connection.

••

8. Position saw head vertically 6" off the ground.

9. Ensure the area under the saw is cleared of all loose dirt stones, wood and debris.

10. Warn all persons to stay clear of the area, especially the discharge side of the saw head.

11. Turn saw switch ON.

SAW-29

12. Case pressure reading should not be higher than 20 psi. If pressure reading is 100 psi or higher check SAW MOTOR RETURN line for correct connection. It is likely that the SAW MOTOR RETURN and WRIST MOTOR DRAIN have been crossed during installation.

Refer to figure SAW-D12. If case pressure reading is very high it may be that the case drain line is not connected, pinched, or otherwise plugged. Recheck all connections.

CASE PRESSURE TEST PORT (LEFT HAND OUTPUT SHAFT HOUSING)

CHECK CASE PRESSURE 1. Park machine on firm level ground, lower felling head to the ground, engage swing brake and stop engine. Block tracks.

Properly install the saw blade guard using all hardware provided. Guard must be secure.

13. Place the throttle control in the IDLE position.

Wait for blade to slow down (pressure less than 500 psi) then turn saw switch OFF and wait for blade to come to a complete stop before shutting the engine off.

2. Ensure hydraulic oil is at operating temperature.

3. Connect a 0-500 psi gauge to the case pressure test port, located on the left hand motor output shaft housing. Note the wrist will be operated during this procedure place the gauge in a location where it can be read safely.

14. Remove gauge.

2.91

Service and Maintenance

Tigercat Saws SETTING CROSSLINE RELIEF PRESSURE 822/830 - WRIST SPOOL SECTION ON THE MAIN CONTROL VALVE

WARNING The felling head will be rotated side to side during this procedure. Operator must ensure that no one is near the felling head during this procedure.

The swing brake should be applied at all times during this procedure.

NOTE: For 822/830 machines the crossline relief pressure should be checked after adjusting the wrist cycle times. Refer to WRIST ASSEMBLY 340 DEGREES ~WRIST CYCLE TIMES in THIS SECTION. UPPER TEST CROSSLINE RELIEF VALVE PORT CONNECTION

FLOW CONTROL VALVE CCW ROTATION

•• 'A' PORT

DANGER Observe all safety precautions outlined in this manual and the base machine service manual when performing this procedure.

CHECK VALVE, SAW RETURN

•

IMPORTANT

••

During the following procedures, DO NOT hold ANY function control for LONGER THAN 5 SECONDS.

••

••

IMPORTANT

•

Avoid blowing oil over relief longer than 5 seconds, as excessive heating of hydraulic fluid and damage to boom pump can occur.

• ••

'B' PORT LOWER TEST PORT CONNECTION

IMPORTANT

FLOW CONTROL VALVE CW ROTATION

•

Approach the gauge reading slowly and deliberately by turning the adjusting screw in a little at a time. The pressure setting must not exceed the set value.

CHECK VALVE, SAW RETURN

SAW-D13

WRIST HYDRAULIC DISTRIBUTION MANIFOLD

WRIST CCW PORT RELIEF

••

FLOW ADJUSTING SCREW FOR PORT 'A' (TYPICAL)

1. Park machine on firm level ground, lower felling head to the ground, engage swing brake and stop engine. Block tracks.

Properly install the saw blade guard using all hardware provided. Guard must be secure.

CONTROL VALVE MANIFOLD

••

2. Ensure that the hydraulic oil is at operating temperature.

••

3. Adjust the screws on both flow control valves on the wrist distribution manifold fully OUT then IN 3½ turns.

B

B

B

B

4. Connect two 0-5000 psi pressure gauges to UPPER and LOWER test ports on distribution manifold.

A

A

A

A

5. Turn wrist spool port relief valve adjusting screws fully IN (clockwise). Do not overtighten or breakage will result.

•

6. Start the engine and set throttle to IDLE. NOTE: Increase engine speed slightly if pressure reading on pressure gauge is erratic.

WRIST CW PORT RELIEF 830D22A

MAIN CONTROL VALVE (830 SHOWN) 2.92

Service and Maintenance

Tigercat Saws NOTE ALSO: Operating the wrist with the throttle set at IDLE, as required by this procedure, may result in slight chatter. This is normal.

LINDE MAIN VALVE MANIFOLD

•

7. Raise head slightly off the ground and tilt forward so that head is horizontal.

••

8. Rotate wrist FULLY counter-clockwise against the wrist rotate stop.

••

'P' GAUGE TEST PORT

10. While pressing and holding the WRIST CCW trigger switch, have an assistant read the LOWER pressure gauge, If less than 3200 psi, stop engine and turn the crossline relief adjusting screw a half turn IN. If greater than 3200 psi, stop engine and turn the crossline relief adjusting screw a half turn OUT. Repeat the above procedure until a gauge reading of 3200 psi is obtained.

LS PRESSURE ADJUSTMENT P2

•• 103-17A MAIN VALVE MANIFOLD 14. Return felling head to vertical position and lower to the ground.

15. Remove pressure gauges and STOP engine.

LOCKNUT AND ADJUSTING SCREW

• ••

CROSSLINE RELIEF VALVE CARTRIDGE

SAW-D15

•• L.S. GAUGE TEST PORT

9. Lower the head until the snouts make contact with the ground.

••

HIGH PRESSURE LIMITING CONTROL

CROSSLINE RELIEF VALVE

11. Tighten locknut on adjusting screw and recheck gauge reading.

12. Repeat steps 7 to 11, checking crossline setting in the opposite direction.

Pressing and holding the WRIST CW trigger switch and reading the UPPER pressure gauge.

There should be a maximum of 200 psi difference side to side.

13. Re-set the wrist spool port relief valve pressures to 3000 psi at 'P' test port. Refer to SET WRIST PORT RELIEF VALVES in SECTION 19 of the machine SERVICE MANUAL for complete instructions.

2.93

Service and Maintenance

Tigercat Saws SETTING CROSSLINE RELIEF PRESSURE.

WARNING

845/845B/860/870/870B - WRIST SPOOL SECTION ON WRIST/CLAMPS VALVE The port relief valves on the wrist spool section are adjusted to 3000 psi on both the A & B ports after setting the crossline relief pressure.

1. Park machine on firm level ground, lower felling head to the ground, engage swing brake and stop engine. Block tracks. Properly install the saw blade guard using all hardware provided.

Guard must be secure.

2. Ensure that the hydraulic oil is at operating temperature.

UPPER TEST CROSSLINE RELIEF VALVE PORT CONNECTION

Observe all safety precautions outlined in this manual and the base machine service manual when performing this procedure.

During the following procedures, DO NOT hold ANY function control for LONGER THAN 5 SECONDS.

CHECK VALVE, SAW RETURN

•

'A' PORT

DANGER

IMPORTANT

FLOW CONTROL VALVE CCW ROTATION

•

The felling head will be rotated side to side during this procedure. Operator must ensure that no one is near the felling head during this procedure.

The swing brake should be applied at all times during this procedure.

IMPORTANT

••

Avoid blowing oil over relief longer than 5 seconds, as excessive heating of hydraulic fluid and damage to boom pump can occur.

••

••

IMPORTANT

••

Approach the gauge reading slowly and deliberately by turning the adjusting screw in a little at a time. The pressure setting must not exceed the set value.

• •

'B' PORT LOWER TEST PORT CONNECTION FLOW CONTROL VALVE CW ROTATION

3. Connect a 0-5000 psi pressure gauge to LOWER test port on distribution manifold.

•

On earlier installations without this test port use test port on wrist/clamps control valve.

CHECK VALVE, SAW RETURN

SAW-D13

WRIST HYDRAULIC DISTRIBUTION MANIFOLD WRIST PORT RELIEF VALVES

GAUGE TEST PORT MID INLET VALVE SECTION

•

•

• •• • •

SAW SECTION MID INLET MAIN RELIEF VALVE

SAW-30

••

•• ••

WRIST SPOOL SECTION

TRAVEL STOP FLOW ADJUSTING SCREW (2 PLACES)

WRIST/CLAMPS CONTROL VALVE (STANDARD VALVE 860 SHOWN ) 2.94

Service and Maintenance

Tigercat Saws 4. Turn MID INLET main relief valve adjusting nut or screw on later style relief valves FULLY IN. 5. Turn wrist valve port reliefs fully IN on both A and B ports.

15. Set wrist spool port relief valve pressures to 3000 psi. Refer to WRIST SECTION of the machine service manual for complete instructions.

6. Adjust the wrist valve travel stop screws fully out on both the A and B ports.

16. Unscrew the MID INLET main relief valve adjusting screw three full turns.

7. Adjust the screws on both flow control valves on the wrist distribution manifold fully OUT then IN 3 turns.

17. Re-set the MID INLET main relief valve by pressing the WRIST CCW trigger switch, have an assistant read the pressure gauge.

If less than to 2700 psi (or 3600 psi for Big Wood hydraulic option), stop engine and turn the MID INLET relief adjusting screw a half turn IN. Repeat the above procedure until the correct gauge reading is obtained.

8. Start the engine and set throttle to IDLE. NOTE: Increase engine speed slightly if pressure reading on pressure gauge is erratic.

9. Raise head slightly off the ground and tilt forward so that head is horizontal.

18. Return felling head to vertical position and lower to the ground.

10. Using the WRIST CCW trigger switch, rotate wrist FULLY counter-clockwise against the wrist rotate stop.

19. Remove pressure gauges and STOP engine.

11. Lower the head until the snouts make contact with the ground.

12. While pressing and holding the WRIST CCW trigger switch, have an assistant read the LOWER pressure gauge, If less than 3200 psi, stop engine and turn the crossline relief adjusting screw a half turn IN. If greater than 3200 psi, stop engine and turn the crossline relief adjusting screw a half turn OUT. Repeat the above procedure until a gauge reading of 3200 psi is obtained.

LOCKNUT AND ADJUSTING SCREW

•

• ••

CROSSLINE RELIEF VALVE CARTRIDGE

CROSSLINE RELIEF VALVE 13. Tighten locknut on adjusting screw and recheck gauge reading.

SAW-D15

14. Repeat steps 9 to 13, checking crossline setting int he opposite direction.

Pressing and holding the WRIST CW trigger switch and reading the UPPER pressure gauge.

There should be a maximum of 200 psi difference side to side.

2.95

Service and Maintenance

Tigercat Saws WRIST CYCLE TIMES 340° WRIST

These valves have a hand-adjustment knob. They follow the conventional adjustment standard in that turning the knob clockwise restricts flow and counter-clockwise increases flow.

The following instructions give typical cycle times and are based on recommended factory settings.

It should be noted that over adjusting to provide faster cycle times could increase the stress on components and the hydraulic system.

DANGER Observe all safety precautions outlined in this manual and the base machine service manual when performing this procedure.

Note: For the 340° wrist additional flow control valves are located on the wrist distribution manifold. These flow control valves are used to fine tune the wrist rotation speed and should be used together with the main control valve adjustments described below. The flow control valves MUST be adjusted IN to provide sufficient backpressure to prevent cavitation damage.

Refer to CHECK BACK PRESSURE in EACH CYCLE TIME PROCEDURE.

A stopwatch will be required for this procedure.

1. Park machine on firm level ground, lower felling head to the ground, engage swing brake and stop engine. Block tracks.

Properly install the saw blade guard using all hardware provided. Guard must be secure.

Refer to the machine SERVICE MANUAL for more detailed information regarding the wrist control valve port relief pressure settings for your machine.

2. For cartridge style flow control valves, loosen the jam nuts and turn the adjusting screws all the way in then back out 3 1/4 turns. This will provide a good starting point.

SETTING FLOW CONTROL VALVES (CYCLE TIME)

3. Connect two 0-5000 psi pressure gauges to the upper and lower test ports on the distribution manifold.

EARLIER WRIST/CLAMPS CONTROL VALVE WITHOUT WRIST SPOOL TRAVEL STOPS MID INLET VALVE SECTION

4. Ensure that hydraulic oil is at operating temperature.

WARNING

WRIST SPOOL SECTION

GAUGE TEST PORT

The felling head will be rotated side to side during this procedure. Operator must ensure that no one is near the felling head during this procedure.

The swing brake should be applied at all times during this procedure.

• •• •

•

••

•

5. Start engine and place throttle control in FULL position.

6. Raise head slightly off the ground and tilt forward so that head is horizontal.

• SAW SECTION MID INLET MAIN RELIEF VALVE

104-9-

••

7. Rotate head FULLY counter-clockwise.

WRIST PORT RELIEF VALVES SCREWED

8. Rotate the head FULLY clockwise and use stop watch to measure the time for a FULL clockwise rotation (340°).

WRIST/CLAMPS CONTROL VALVE (EARLIER - WRIST SPOOL WITHOUT SPOOL STOPS)

9. If the time is greater than 11 seconds, increase flow by loosening locknut and backing the adjusting screw OUT on the LOWER flow control valve located on the distribution manifold (later machines) or by turning the control knob OUT on the flow control valve connected to the "B" PORT on the wrist/clamps control valve (early machines).

NOTE: Later units have cartridge-style flow control valves mounted in the distribution manifold under the right hand motor cover on the boom adapter.

Early units have two in-line flow control valves mounted on the carrier at the wrist/clamp valve.

2.96

Service and Maintenance

Tigercat Saws UPPER TEST CROSSLINE RELIEF VALVE PORT CONNECTION

FLOW CONTROL VALVE CCW ROTATION

••

LOCKNUT AND ADJUSTING SCREW

CHECK VALVE, SAW RETURN

•

••

'A' PORT

•

• ••

••

•• •

•

'B' PORT LOWER TEST PORT CONNECTION

••

FLOW CONTROL VALVE CW ROTATION

FLOW CONTROL VALVE CARTRIDGE

••

CHECK VALVE, SAW RETURN

SAW-D13 SAW-D16

WRIST HYDRAULIC DISTRIBUTION MANIFOLD

FLOW CONTROL VALVE CARTRIDGE

13. The low-pressure reading (return side of motors) should be 600-1500 psi.

10. If the time is less than 11 seconds, decrease flow by turning the adjusting screw on the LOWER flow control valve IN on the distribution manifold (later machines) or by turning the control knob IN on the flow control valve connected to the "B" PORT on the wrist/ clamps control valve (early machines).

14. Repeat for counter-clockwise rotation.

15. If reading is correct move to step 19 16. If the reading is less than 600 psi, adjust the flow control valve (distribution manifold) on the low pressure side IN to increase backpressure. NOTE: Adjusting for slower rotation speeds will cause increased back pressure.

11. Repeat this procedure rotating the felling head in the opposite direction to measure the speed in the counter-clockwise direction.

Make adjustments on the UPPER flow control valve on the distribution manifold (later machines) or the flow control valve connected to the ‘A” PORT on the wrist/clamps control valve (early machines). Set time for full rotation at 11 seconds, as above.

17. If reading is greater than 1500 psi, adjust the flow control valve (distribution manifold) on the low pressure side OUT to decrease backpressure.

18. Repeat steps 7 through 17 to reset rotation speed and recheck back pressure.

CHECK BACK PRESSURE Note: It is important to check back pressure in the wrist motors each time wrist rotation speed is adjusted. Rotation speed adjustments may create pressures in the hydraulic system which result in cavitation in the wrist motors. If this is found to be the case further adjustments are required to prevent component damage and ensure efficient and long term operation.

19. Set throttle to IDLE and remove pressure gauges from distribution manifold and stop engine.

12. While observing the two gauges rotate the wrist fully clockwise.

2.97

Service and Maintenance

Tigercat Saws SETTING FLOW CONTROL VALVES (CYCLE TIME)

UPPER TEST CROSSLINE RELIEF VALVE PORT CONNECTION

FLOW CONTROL VALVE CCW ROTATION

822/830 - WRIST SPOOL SECTION ON THE MAIN CONTROL VALVE

WRIST CCW PORT RELIEF

•

FLOW ADJUSTING SCREW FOR PORT 'A' (TYPICAL)

B

•• ••

B

•

• ••

B

•• •

'B' PORT

A

A

A

CHECK VALVE, SAW RETURN

••

'A' PORT

CONTROL VALVE MANIFOLD

•• B

•

LOWER TEST PORT CONNECTION

A

FLOW CONTROL VALVE CW ROTATION

••

••

CHECK VALVE, SAW RETURN

SAW-D13

WRIST HYDRAULIC DISTRIBUTION MANIFOLD

WRIST CW PORT RELIEF 830D22A

MAIN CONTROL VALVE (830 SHOWN)

5. Start engine and place throttle control in FULL position.

WARNING

A stopwatch will be required for this procedure.

The felling head will be rotated side to side during this procedure. Operator must ensure that no one is near the felling head during this procedure.

The swing brake should be applied at all times during this procedure.

DANGER Observe all safety precautions outlined in this manual and the base machine service manual when performing this procedure.

1. Park machine on firm level ground, lower felling head to the ground, engage swing brake and stop engine. Block tracks.

Properly install the saw blade guard using all hardware provided. Guard must be secure.

2. For cartridge style flow control valves, loosen the jam nuts and turn the adjusting screws all the way OUT then back in 3½ turns.

3. Connect two 0-5000 psi pressure gauges to the upper and lower test ports on the distribution manifold.

4. Ensuring that hydraulic oil is at operating temperature.

6. Raise head slightly off the ground and tilt forward so that head is horizontal.

7. Rotate head FULLY counter-clockwise.

8. Rotate the head FULLY clockwise and use stop watch to measure the time for a FULL clockwise rotation (340°).

9. The cycle time should be approximately 12½ seconds for a FULL clockwise rotation.

10. To adjust cycle times use flow adjusting screws. Note: The 'A' port is connect to the WRIST CCW function and the 'B' port is connected to the WRIST CW function.

11. Loosen locknut and turn flow adjusting screw IN (CW) to slow down and OUT (CCW) to speed up. Tighten locknut on adjusting screw and recheck times.

2.98

Service and Maintenance

Tigercat Saws LOCKNUT AND ADJUSTING SCREW

18. If reading is greater than 1500psi, adjust the flow control valve (distribution manifold) on the low pressure side OUT to decrease backpressure.

• ••

19. Repeat steps 7 through 18 to reset rotation speed and recheck back pressure.

20. Set throttle to IDLE and remove pressure gauges from distribution manifold and stop engine.

• FLOW CONTROL VALVE CARTRIDGE

SAW-D16

FLOW CONTROL VALVE CARTRIDGE

12. Repeat this procedure rotating the felling head in the opposite direction to measure the speed in the counter-clockwise direction.

NOTE: due to spool configuration, flow screw adjustment on the A port will differ from the B port.

CHECK BACK PRESSURE Note: It is important to check back pressure in the wrist motors each time wrist rotation speed is adjusted. Rotation speed adjustments may create pressures in the hydraulic system which result in cavitation in the wrist motors. If this is found to be the case further adjustments are required to prevent component damage and ensure efficient and long term operation.

13. While observing the two gauges rotate the wrist fully clockwise.

14. The low-pressure reading (return side of motors) should be 600-1500 psi.

15. Repeat for counter-clockwise rotation.

16. If readings are correct move to step 20.

17. If the reading is less than 600 psi, adjust the flow control valve (distribution manifold) on the low pressure side IN to increase backpressure.

2.99

Service and Maintenance

Tigercat Saws SETTING FLOW CONTROL VALVES (CYCLE TIME)

UPPER TEST CROSSLINE RELIEF VALVE PORT CONNECTION

845/845B/860/870/870B - WRIST SPOOL SECTION ON WRIST/CLAMPS VALVE (LATER MODELS) WRIST PORT RELIEF VALVES

GAUGE TEST PORT MID INLET VALVE SECTION

••

•• •• • • • • •

SAW SECTION

••

• ••

•

WRIST SPOOL SECTION

••

•

•

'B' PORT TRAVEL STOP FLOW ADJUSTING SCREW (2 PLACES)

LOWER TEST PORT CONNECTION

WRIST/CLAMPS CONTROL VALVE (STANDARD VALVE 860 SHOWN )

A stopwatch will be required for this procedure.

CHECK VALVE, SAW RETURN

••

'A' PORT

••

MID INLET MAIN RELIEF VALVE

SAW-30

FLOW CONTROL VALVE CCW ROTATION

••

FLOW CONTROL VALVE CW ROTATION

••

CHECK VALVE, SAW RETURN

SAW-D13

WRIST HYDRAULIC DISTRIBUTION MANIFOLD

DANGER Observe all safety precautions outlined in this manual and the base machine service manual when performing this procedure.

1. Park machine on firm level ground, lower felling head to the ground, engage swing brake and stop engine. Block tracks.

Properly install the saw blade guard using all hardware provided. Guard must be secure.

2. For cartridge style flow control valves, loosen the jam nuts and turn the adjusting screws all the way OUT then back in 3½ turns.

3. Connect two 0-5000 psi pressure gauges to the upper and lower test ports on the distribution manifold.

4. Ensuring that hydraulic oil is at operating temperature.

5. Start engine and place throttle control in FULL position.

WARNING The felling head will be rotated side to side during this procedure. Operator must ensure that no one is near the felling head during this procedure.

The swing brake should be applied at all times during this procedure.

6. Raise head slightly off the ground and tilt forward so that head is horizontal.

7. Rotate head FULLY counter-clockwise.

8. Rotate the head FULLY clockwise and use stop watch to measure the time for a FULL clockwise rotation (340°).

9. The cycle time should be approximately 12½ seconds for a FULL clockwise rotation.

10. To adjust cycle times use wrist spool travel stop flow adjusting screws.

11. Loosen locknut and turn flow adjusting screw IN (CW) to slow down and OUT (CCW) to speed up cycle time. Tighten locknut on adjusting screw and recheck times.

12. Repeat this procedure rotating the felling head in the opposite direction to measure the speed in the counter-clockwise direction.

NOTE: due to spool configuration, flow screw adjustment on the A port will differ from the B port.

CHECK BACK PRESSURE Note: It is important to check back pressure in the wrist motors each time wrist rotation speed is adjusted. Rotation speed adjustments may create pressures in the hydraulic system which result in cavitation in the wrist motors. If this is found to be the case further adjustments are 2.100

Service and Maintenance

Tigercat Saws LOCKNUT AND ADJUSTING SCREW

• •

•• FLOW CONTROL VALVE CARTRIDGE

SAW-D16

FLOW CONTROL VALVE CARTRIDGE

required to prevent component damage and ensure efficient and long term operation.

13. While observing the two gauges rotate the wrist fully clockwise.

14. The low-pressure reading (return side of motors) should be 600-1500 psi.

15. Repeat for counter-clockwise rotation.

16. If readings are correct move to step 20.

17. If the reading is less than 600 psi, adjust the flow control valve (distribution manifold) on the low pressure side IN to increase backpressure.

18. If reading is greater than 1500psi, adjust the flow control valve (distribution manifold) on the low pressure side OUT to decrease backpressure.

19. Repeat steps 7 through 18 to reset rotation speed and recheck back pressure.

20. Set throttle to IDLE and remove pressure gauges from distribution manifold and stop engine.

2.101

Service and Maintenance

Tigercat Saws OUTPUT SHAFT DISASSEMBLY/ASSEMBLY 1. Turn the saw OFF and allow saw blade to come to a COMPLETE STOP. DO NOT exit the cab or approach the felling head until the blade is stopped.

2. Park the machine on firm level ground. Block the wheels or tracks. Engage the parking brake or swing brake. Position the felling head tilted forward 90° and resting on ground.

NOTE: Open clamp arms sufficiently to allow felling head to be resting in a horizontal position.

MOTOR CASE DRAIN PLUG

MOTOR SECURING BOLTS (4)

3. Stop the engine and turn the master disconnect switch OFF.

• ••

OUTPUT SHAFT DRAIN CONNECTION

4. Ensure the saw blade has come to a complete stop.

•

•

5. Remove protective cover to access wrist motor.

OUTPUT SHAFT HOUSING SECURING BOLTS (8)

6. Before disassembly operation, remove any accumulation of dirt or debris from surrounding area.

• BOOM ADAPTER

SAW-D18

WRIST MOTOR AND OUTPUT SHAFT REMOVAL

7. Disconnect all hydraulic tubing from the affected wrist motor and the output shaft housing. Plug all ports and cap tubing to prevent entry of dirt.

Note: The motor shaft has no support bearings and will be loose (side to side, in and out). A loose shaft is NOT and indication of motor failure.

8. Remove the case drain plug from the wrist motor and drain any hydraulic oil remaining in the motor, replace plug.

10. Remove the (8) bolts securing the output shaft housing to the boom adapter and remove the output shaft from the boom adapter.

9. Remove the (4) bolts securing the wrist motor to the output shaft housing and remove the wrist motor from output shaft housing. Cover exposed shaft end of motor.

11. Before disassembly of output shaft, remove all grease and dirt accumulation from the outside of the assembly.

SEAL, ‘O’ RING

HOUSING SHIM(S) BETWEEN SHOULDER RING AND INNER RACE

SEAL RING, TEFLON

*SHOULDER RING (SEE NOTE)

•

RETAINING RING

•

MOTOR MOUNT ‘O’ RING

MOTOR SHAFT ‘V’ CUP SEAL RING

OUTPUT SHAFT SEAL COLLAR

••

•

•

•

•

• • WIPER

•

•

• *NOTE: EARLIER MACHINES DID NOT HAVE SHOULDER RING FACTORY INSTALLED. SAW126

UPPER BEARING

LOWER BEARING

OUTPUT SHAFT ASSEMBLY 2.102

SPACER (REQUIRED ON EARLIER MODELS)

Service and Maintenance

Tigercat Saws 12. Remove shoulder ring, retaining ring and shims from output shaft. (Note some earlier machines did not have a shoulder ring factory installed.)

hydraulic oil and use seal seating tool (Tigercat PART No. 19057A) or fingers to smooth out the inside diameter of the seal ring after installation.

13. Rest housing on blocks in upright position, pinion down and press out shaft complete with seal collar and inner race of lower bearing.

25. Check wiper groove in seal collar to ensure it is clean and dry. Insert a new wiper into the groove with lip facing out, see fig.126.

14. Remove old oil seal (teflon ring and ‘O’ ring) from groove of housing and discard. NEVER re-use any part of old seal.

26. Position housing with lower bearing facing up.

Support inner race of upper bearing with special tool Tigercat PART No. 19049A.

15. Remove wiper from collar and discard.

27. Oil teflon seal ring surface, wiper and bearings and install output shaft into housing, lightly tap into position so that sealing collar slips into the teflon seal ring and the wiper slips into the housing.

(Note: To prevent extrusion of the wiper, carefully push it in around the edge of the collar once it starts to engage the housing.)

If only replacing the seal go to step 23.

16. Remove seal collar and lower bearing inner race from shaft.

17. Press out both upper and lower bearings from housing.

18. Thoroughly clean housing and shaft.

Use only enough pressure to seat the bearings. Check to ensure the shaft is installed straight, collar clears housing and wiper is evenly positioned.

19. Lightly oil bore of housing and press a new upper bearing into the housing. Use special tool Tigercat PART No. 19047A. 20. Lightly oil bore of housing and press a new lower bearing into the housing. Use special tool Tigercat PART No. 19047A. 21. Heat sealing collar and lower bearing inner race in a bearing oven to 250°F (120°C), do not place on floor of oven. (Maximum 1.5 hours) 22. Install seal collar and lower bearing inner race onto shaft. Press both on simultaneously by supporting inner race (using a spacer Tigercat PART No. 19048A) and pressing down on pinion end of shaft.

28. On later machines install shoulder ring and retaining ring on shaft (square edge of shoulder ring next to snap ring) and check shaft end play, use feeler gauge between upper bearing inner race and shoulder ring, maximum allowable end play is 0.006”-0.010".

Add or remove shims between shoulder ring and inner race to achieve correct end play.

Using a soft-faced hammer gently tap the end of the shaft until the shoulder ring is snug to the snap ring.

On earlier machines without shoulder ring, install retaining ring on shaft and check shaft end play, use feeler gauge between upper bearing inner race and retaining ring, maximum allowable end play is 0.006”-0.010".

Add or remove shims between retaining ring and inner race to achieve correct end play.

23. Clean seal groove in housing and insert new ‘O’ ring part of seal into groove. Keep inside of housing clean and free from contaminants.

24. Insert new teflon part of seal into groove in housing on top of ‘O’ ring. Collapse ring as shown in fig. 127, taking care not to crease the seal ring. Place into groove as shown.

Coat the inside surface of the seal with TAKE CARE NOT TO CREASE THE SEAL RING WHILE FORMING

SAW127

29. Turn housing over. Check seal collar for runout. Place the base of a dial indicator on the housing and zero the dial on the seal collar, rotate the shaft one revolution (use tool Tigercat PART No. 19122A), maximum allowable run-out is 0.002”. Repeat in different locations of the seal collar.

TEFLON SEAL RING INSTALLATION 2.103

Service and Maintenance

Tigercat Saws OUTER FACE OF BOOM ADAPTER

SEAL COLLAR

ENSURE SEAL RING IS INSTALLED AS SHOWN

OUTPUT SHAFT HOUSING WRIST BEARING

•

••

• ••

• SAW-D19

INSTALL ‘V’ CUP SEAL ONTO MOTOR SHAFT

••

• SAW-D17 OUTER FACE OF BOOM ADAPTER 30. Clean mating surfaces and install output shaft assembly onto the boom adapter. Align gear teeth of pinion shaft with the gear teeth on the wrist bearing. Use special tool Tigercat PART No. 19056A to rotate housing to align mounting holes. Secure in place with (8) retaining bolts, torque bolts.

NOTE: Ensure that the seal collar does not protrude through the outer face of the boom adapter and interfere with the wrist bearing or grease retainers. Earlier housings may require shims between the output shaft housing and the inner face of the boom adapter to ensure that the seal collar is recessed 1/16” - 1/8” in from the outer face of the boom adapter.

POSITION SEAL RING IN RECESS AS SHOWN

INSTALL A NEW ‘O’ RING ONTO WRIST MOTOR HOUSING SAW-D20

INSTALL ‘V’ CUP SEAL ONTO MOTOR SHAFT

31. Install drain tube/fittings onto output shaft housing and fill housing with clean, filtered hydraulic oil.

MOTOR CASE DRAIN PLUG

MOTOR SECURING BOLTS (4)

32. Install ‘V’ cup seal onto wrist motor shaft as shown in fig. D19 and position in recess, fig.

D20. Install a new ‘O’ ring onto wrist motor housing.

33. Install the wrist motor onto the output shaft housing. Secure in place with (4) retaining bolts, torque bolts.

OUTPUT SHAFT DRAIN CONNECTION

Note: The wrist motor should easily fit onto the output shaft housing. Any interference, gap or misalignment will result in failure of the output shaft and/or the motor. Therefore fit problems must be corrected immediately.

34. Re-connect all hydraulic tubing and replace protective cover.

• •• •

•• OUTPUT SHAFT HOUSING SECURING BOLTS (8) SAW-D18

• BOOM ADAPTER

WRIST MOTOR AND OUTPUT SHAFT REMOVAL

35. Fill housing and motors with oil. See INITIAL START-UP PROCEDURE in THIS SECTION. 2.104

Service and Maintenance

Tigercat Saws

19048AIL.PLT

SEAL RING ASSEMBLY TOOL (PART # 19048A)

19047AIL.PLT

19057AIL.PLT

19049AIL.PLT

SHAFT ASSEMBLY BEARING SUPPORT TOOL (PART # 19049A)

BEARING ASSEMBLY TOOL, DOUBLE (PART # 19047A)

ROTARY SEAL ASSEMBLY TOOL (PART # 19057A)

19122AIL.PLT 19056AIL.PLT

19051AIL.PLT

SEAL RING REMOVAL TOOL (PART #19051A)

PINION ROTATING TOOL (PART # 19122A)

HOUSING ALIGNMENT TOOL (PART # 19056A)

WRIST ASSEMBLY - SPECIAL TOOLS AVAILABLE FROM TIGERCAT

2.105

Service and Maintenance

Tigercat Saws

WRIST BEARING SEAL

••

•

OUTER RACE

••

••

INNER RACE

WRIST BEARING ASSEMBLY

SAW-D21

WRIST BEARING SEAL REPLACEMENT A seal on either side of the wrist bearing is in place to prevent entry of dust and other foreign material that would cause damage to the bearing.

WRIST BEARING SEALS

•

3. Apply adhesive, 3M-1300 adhesive, into the groove of the wrist bearing.

4. Start inserting the seal into the groove, make sure that the end of the seal is cut square.

Work around the diameter pressing the seal all the way into the groove. The seal should be even with out any bumps.

5. Cut the end of the seal square with a sharp knife to form a butt joint. Bond ends of seal together with loctite 495 adhesive.

6. Wipe away any excess adhesive.

• • OUTER RACE SAW128

• INNER RACE

7. Apply grease to wrist bearing as outlined in felling head LUBRICATION SCHEDULE in THIS MANUAL.

WRIST BEARING ASSEMBLY

Inspect the seals for damage during maintenance of the wrist assembly. If a seal is damaged or is coming out of the groove it should be replaced.

The seal consists of a one piece strip long enough to go all the way around the groove.

1. Remove the damaged seal.

2. Clean the groove thoroughly with brake fluid.

Removing all traces of old adhesive, dirt and grease. Ensure that the groove is completely dry after cleaning.

2.106