Tigercat TH570 HARVESTING HEAD SERVICE MANUAL SN 5700101 to 5701000 - PDF DOWNLOAD

TH570 HARVESTING HEAD

SERVICE MANUAL SERIAL NUMBER 5700101 to 5701000

ISSUE 1.1, NOVEMBER 2016 Tigercat Industries Inc. P.O. Box 637 Brantford, Ontario Canada N3T 5P9 Tel: (519) 753-2000 Fax: (519) 753-8272

Tigercat TH570 Harvesting Head

Introduction

ii

Tigercat TH570 HARVESTING HEAD Tigercat TH570 Harvesting Head

Introduction

TABLE OF CONTENTS INTRODUCTION.............................................................................................................................. v NON-APPROVED FIELD PRODUCT CHANGES........................................................................... vi SAFETY............................................................................................................................................ 1 CONTROLS AND OPERATION....................................................................................................... 2 COMPUTER SYSTEM...........SEE SEPARATE MEASURING AND CONTROL SYSTEM MANUAL LUBRICATION AND MAINTENANCE.............................................................................................. 3 HYDRAULIC SYSTEM..................................................................................................................... 4 ELECTRICAL................................................................................................................................... 6 MEASURING SYSTEMS (LENGTH AND DIAMETER).................................................................... 7 SAWS............................................................................................................................................... 8 ROTATOR, LINK AND TILT FRAME................................................................................................. 9 WHEEL ARMS AND WHEEL MOTORS ........................................................................................ 10 DELIMBER ARMS AND KNIVES................................................................................................... 11 OPTIONS....................................................................................................................................... 12

TH570 Available Literature Operator's Manual.........................................................................................................Part No. 45353AENG Service Manual (This Manual) ......................................................................................Part No. 45354AENG Parts Catalog.................................................................................................................Part No. 45355A Measuring and Control System - Tigercat D5 PRIO Operators Manual........................Part No. 43637AENG Measuring and Control System - Tigercat D5 PRIO Service Manual............................Part No. 45360AENG iii

Tigercat TH570 Harvesting Head

Introduction

iv

Tigercat TH570 Harvesting Head Tigercat TH570 Harvesting

INTRODUCTION

Head

Introduction

An Operator's manual, Service manual, Measuring and Control System manual, and a Parts catalog are made available by Tigercat to assist the dealer, customer and operator in becoming familiar with the features of the TH570 Harvesting Head serial number 5700101 to 5701000.

The Operator and Maintenance manual will assist the operator with the techniques of proper and safe operation of the Harvesting Head. It contains important information regarding the safe operation of the head, a preventive maintenance schedule and servicing procedures to ensure optimum performance.

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 harvesting head and machine operator.

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

The information contained in this manual is current at time of printing. Improvements to the harvesting head 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 harvesting head serial number HIGHER than the serial number preceding the “and up”.

Tigercat reserves the right to make changes to the harvesting head 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 harvesting head 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.

SERIAL NUMBER PLATE

570-33

v

Tigercat TH570 Harvesting Head

Introduction

NON-APPROVED FIELD PRODUCT CHANGES

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

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

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

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

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

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

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

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

Tigercat Industries Inc.

vi

Tigercat TH570 Harvesting Head SECTION 1 – SAFETY Read and understand the entire contents of this manual, and all manuals for any attachments or accessories associated with this equipment, prior to operating or servicing.

CONTENTS – SECTION 1

ISSUE 2.2, NOVEMBER 2016

B

BATTERY SAFETY...................................................................................................................................................... 1.6

C

CAB EXITS................................................................................................................................................................... 1.7 CHAIN SHOT............................................................................................................................................................. 1.12

E

EMERGENCY CAB EXITS......................................................................................................................................... 1.7

F

FELLING TREES....................................................................................................................................................... 1.12 FIRE PREVENTION DRY CHEMICAL CLEANUP PROCEDURES...................................................................................................... 1.27 FIRE PREVENTION GUIDELINES....................................................................................................................... 1.23 WHAT TO DO AFTER A MACHINE FIRE HAS OCCURRED.............................................................................. 1.26 WHAT TO DO TO PREPARE FOR A MACHINE FIRE........................................................................................ 1.24 WHAT TO DO WHEN A MACHINE FIRE OCCURS............................................................................................. 1.25 FLUID INJECTION INJURY...................................................................................................................................... 1.18

G

GREASE INJECTION INJURY................................................................................................................................. 1.19

H

HARVESTING ATTACHMENT – GENERAL SAFETY............................................................................................. 1.8 HARVESTING HEAD DO NOTS.............................................................................................................................. 1.33 HAZARD ZONE........................................................................................................................................................... 1.3

L

LIGHTNING SAFETY AWARENESS....................................................................................................................... 1.20

O

OPERATING SAFETY PRECAUTIONS.................................................................................................................... 1.7

P

PARKING THE HEAD................................................................................................................................................ 1.16 PROTECTIVE CLOTHING.......................................................................................................................................... 1.2

S

SAFETY LABELS HARVESTING HEAD............................................................................................................................................. 1.28 SAFETY PRECAUTIONS, GENERAL SAFETY HAZARDS - VITON SEALS..................................................................................................................... 1.5 SAFETY PRECAUTIONS, OPERATING HARVESTING ATTACHMENT................................................................................................................................. 1.8 HARVESTING HEAD CONTACT WITH CAB....................................................................................................... 1.10 SAFETY PRECAUTIONS, SERVICING................................................................................................................... 1.15 FLUID INJECTION INJURY.................................................................................................................................. 1.18 GREASE INJECTION INJURY.............................................................................................................................. 1.19 PARKING THE HEAD............................................................................................................................................ 1.16 TILT FRAME LOCK BOLTS................................................................................................................................... 1.17 SAFTEY SYMBOLS..................................................................................................................................................... 1.2 SIGNAL WORDS......................................................................................................................................................... 1.2

T

TILT FRAME............................................................................................................................................................... 1.16 TILT FRAME LOCK BOLTS...................................................................................................................................... 1.17

W

WORKING WITH OIL.................................................................................................................................................. 1.4

Safety

Tigercat TH570 Harvesting Head

SAFTEY SYMBOLS

Remember that safety is a prime responsibility of all.

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

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

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

UNDERSTANDING SIGNAL WORDS

• Follow all instructions from safety inspector and supervisors.

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

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

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

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

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

• 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 that the operator should be familiar with and adhere to. More specific measures are illustrated with pictograms which may also be attached to the machine in locations pertinent to their respective message. Keep safety labels in good condition. Repair or replace damaged labels.

1.2

Tigercat TH570 Harvesting Head

Safety WARNING

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

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

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.

A

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

A

A

• Do not jump off the machine at any time.

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

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

A

822D-117

A 150 m (500 ft)

Hazard Zone

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

• Do not use the machine foot controls as steps.

• When mounting or dismounting the machine always use the 3 point technique; use one hand with 2 feet or 2 hands with 1 foot.

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

WARNING

NOTE: opening the cab front door will stop machine functions. Opening the cab side door will NOT stop machine functions.

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

1.3

Safety

Tigercat TH570 Harvesting Head • Do not operate the machine with any defective or inoperable components.

WARNING

• Check all fluid levels.

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

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

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

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

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

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

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

Hydraulic oil leaks, excess grease, fuel and oil accumulation (including spillage) should be eliminated immediately, always shut off engine before cleaning machine.

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

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

Some advice which should be observed: • Oils used in this machine may be hot enough to cause serious burns.

• Avoid contact with oil, particularly heated oil.

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

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

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

• Machine should be washed completely at every major service.

• Don't put oily rags in your pockets.

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

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

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

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

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

• Check windows and door guards for damage.

• Avoid breathing in oil fumes.

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

All damaged windows must be replaced with original equipment.

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

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

1.4

Tigercat TH570 Harvesting Head

Safety

SAFETY HAZARDS – VITON SEALS

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

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

• 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.

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

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

Refer to specific machine Operators manual for vehicle moving instructions page in SECTION 2.

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

• Stopping the engine immediately after it has been working under load can result in overheating and premature wear of the engine components.

Reduce engine speed to LOW IDLE and let run for approximately 5 minutes to allow gradual dissipation of heat and also to reduce turbo speed. This will also prevent loss of coolant by after boil and possible hot spot damage to the engine.

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

• If these are found, do not touch!!!

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

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

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

• 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.

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

SAFETY HAZARDS - OPERATING • Maintain a charged fire extinguisher on the vehicle at all times and KNOW HOW TO USE IT.

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

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

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

WARNING

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

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

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

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

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

1.5

Safety

Tigercat TH570 Harvesting Head WARNING

AVOID INJURY FROM BACKOVER ACCIDENTS

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

Wash hands after handling.

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

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

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

CAUTION

• To avoid backover accidents: Lead-acid batteries contain sulfuric acid which can severely damage eyes or skin on contact.

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

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

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

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

• Keep motion warning alarm in working condition.

The motion warning alarm must sound when the machine is moving in forward or reverse.

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

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

• Keep windows, mirrors and lights in good condition.

• Disconnect battery before working on electrical systems as follows:

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

1. Turn OFF the battery disconnect switch in the cab 2. Disconnect negative starter motor cable from both battery posts 3. Disconnect positive master solenoid cable from both battery posts NOTE: Connect ground terminal last when reconnecting.

• Do not short out battery terminals for any reason.

Serious burns or an explosion can result.

1.6

Tigercat TH570 Harvesting Head

Safety

OPERATING SAFETY PRECAUTIONS

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

1. Front door, this is also the main point of entry and is the only door that should be used under normal operating conditions to enter or leave the cab. This door is also equipped with a safety interlock switch.

See safety interlock switch on front door in machine operators manual.

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

2. Side door, should be used for emergency exits only.

Do not use this door to routinely enter or leave the cab. This door is not equipped with a safety interlock switch and therefore when left open will not deactivate the pilot controls in the cab. ALWAYS shut OFF engine before using the side door exit.

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

• Sound the machine horn before starting the machine.

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

This hatch is not equipped with a safety interlock switch and therefore when left open will not deactivate the pilot controls in the cab. ALWAYS shut OFF engine before using the escape hatch exit.

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

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

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

• Start the engine according to the instructions titled "OPERATING MACHINE" in SECTION 2 of the machine manual.

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

WARNING Never use a liquid starting aid to start an engine.

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

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

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

1.7

Safety

Tigercat TH570 Harvesting Head

HARVESTING ATTACHMENT – GENERAL SAFETY: Improper operation, maintenance or repair of this product can be dangerous and could result in injury or death. Do not operate or perform any maintenance or repair of this product until you have read and understood the operation and repair information contained in the manuals provided by the attachment manufacturer.

OPERATION: Felling trees with the harvester is very dangerous and should be done only by properly trained and experienced operators.

• Lower attachment to ground and turn pilot system off whenever machine is not in use.

• Always fell trees in the direction that they are leaning.

The following are general safety guidelines for harvesting attachments. Note the design, operation, and maintenance of attachments varies among manufacturers. Always follow the specific safety, maintenance, and operating procedures provided by the attachment manufacturer.

• Never fell trees close to overhead power lines, vehicles, houses, roads/pathways, etc.

WARNING The operator must release trees from the attachment, place attachment on the ground, and shut pilot system off if someone enters into the hazard zone.

The operator of the carrier and harvesting head must be properly trained in the operation of the equipment and its safety requirements.

PRIOR TO STARTING OPERATION:

• Never fell trees when there are personnel on the ground within the 150 metre (500 ft) “hazard zone.”

WARNING

• During operation do not allow anyone within the safety zone of at least 150 metres (500 ft) from the machine.

The attachment may release held trees when the cab front door is opened, the pilot system is turned off or the fire suppression system is activated. Never exit the cab with a tree suspended in the attachment.

• Never fell trees in the direction of the operator’s cab.

• Ensure no one is near the machine where the risk of personal injury is present.

• Ensure no one is in the line of the chain saw when starting or operating the harvesting head. The hydraulically driven saw chain reaches high speeds and is an extreme hazard if the chain breaks.

• Regularly inspect, check and maintain the saw guide (bar), the saw chain and sprocket, ensuring that all components are secure and not damaged as detailed in the harvesting attachment operator’s manual.

• Ensure that all safety equipment upgrades available from the attachment manufacturer have been installed.

• Before starting each shift the operator must test ALL functions of the carrier and attachment to ensure that they are in proper working order.

1.8

Tigercat TH570 Harvesting Head

Safety

WARNING Avoid the risk of chain shot. Never operate the attachment so that the saw bar is directly in line with the cab or any personnel!

• Do not process trees with the saw guide (bar) aligned with the operator’s cab. The hydraulically driven saw chain reaches high speeds and is an extreme hazard if the chain breaks.

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

• Be particularly observant with the zone in line with the chain saw.

1.9

Safety

Tigercat TH570 Harvesting Head

HARVESTING HEAD CONTACT WITH CAB

Working with the harvesting head in close to the machine: • Increases operator visibility, permitting better placement of the head on the tree and improving awareness of saw bar location and penetration, tree species and areas of rot, splits and crooks.

• Reduces the potential for damage to both the standing trees and the harvesting head and stick boom components.

• Improves the stability of a machine working on uneven ground as the weight of the boom, head and tree need not be extended as far out in front of the machine.

The boom of this machine is designed to enable the harvesting head to be tucked in close to the operator’s cab. This ability maximizes the manoeuvrability of the harvesting head to work around standing trees and while thinning in dense stands. See both the upper and lower sections of Figure 1.

800-01A

• Broadens the working area that can be reached by the boom and thereby lessens the need to reposition the machine as frequently during harvesting operations.

Figure 2. Harvesting Head Swinging

Figure 1. Harvesting Head Tucked in Close

1.10

Tigercat TH570 Harvesting Head However operators of these machines are advised that working with the harvesting head in close to the machine also increases the chances of the harvesting head making contact with the front area of the cab, particularly if the head is swinging backwards as it dangles from the end of the stick boom. See both the upper and lower sections of Figure 2.

For all machines equipped with a harvesting head, the following procedures must be followed during the operation of the machine to avoid contact of the harvesting head with the cab.

Safety Should contact between the harvesting head and the cab occur at any time during the operation of the machine, the following procedure must be completed.

1. Inspect the cab, the front door and the front window immediately to determine if any damage has occurred.

2. Be certain to read, understand and follow the sections in the machine manual titled “CARE OF POLYCARBONATE WINDOWS IN CAB” and “INSPECTION AND MAINTENANCE”.

1. When nearing boom positions shown in Figure • Always keep the head in the upright harvesting position.

• Do not tilt the head from the harvesting to the processing position as the saw housing may contact the cab.

• Reduce the speed of boom movement. Rapid movement could cause the base of the harvesting head to swing backwards towards the cab.

• Avoid any sudden movements with the track drive system as this could cause the head to swing backwards into the cab.

2. Never bring the harvesting head in close to the machine while the harvesting head is swinging on the end of the stick boom. See Figure 2.

3. Do not use the head to pull downed trees directly towards the cab. If the clamping arms slip on the tree, the head may quickly swing towards the cab.

1.11

Safety

Tigercat TH570 Harvesting Head

CHAIN SHOT - LOGGING SAFETY

A

Chain Shot is the high-speed ejection of chain parts that can occur in the event of a derailed or broken chain.

While the risk of a chain shot event can't be eliminated, it can be minimized by following some simple operational recommendations.

WARNING

B

There is risk of serious injury or death to machine operators and bystanders from chain shot. Follow the manufacturer's application and maintenance instructions and those provided for the equipment on which the cutting chain is used.

Generally, chain shot originates near the driven end of the cutting system, but can also originate from the guide bar tip area. In either situation, it poses the same risk of serious injury or death to the machine operator and any ground personnel nearby.

575-500

A Chain Travel B Chain's Free End

Figure 2

2. If the chain is not contained by the saw box or by a chain shot guard, the broken saw chain’s free end can speed up rapidly, carrying immense dynamic energy.

A

HOW CHAIN SHOT OCCURS A

575-501

B

D A Chain Travel

C 575-499

A B C D

Chain Travel Drive Sprocket Chain Break Guide Bar Tip

Figure 1

Figure 3

3. At the peak of the whip, chain parts may break loose and be ejected at high speed, especially if the free end of the saw chain strikes the saw box.

1. After a chain breaks, the free end of the chain begins to whip away from the break.

1.12

Tigercat TH570 Harvesting Head

Safety CAN CHAIN SHOT BE ELIMINATED?

WARNING CHAIN SHOT HAZARD! It is the operator's responsibility to ensure any bystanders and themselves are not in the plane of the cutting chain.

Orient bar and chain so high velocity parts are thrown away from people and equipment.

Refer to applicable manuals for additional safety information

In simple terms, no, it can’t. Properly designed chain shot guards and shields reduce the danger of a chain shot from the drive sprocket area. However, there is currently no known way to place similar guards in the guide bar tip area without significant disruption to the cutting operation. Because no guarding is currently possible in the guide bar tip area, chain shots can be generated and pose the same risk of serious injury or death as those generated at the drive sprocket area.

Care should be taken to minimize the exposure of the machine operator and ground personnel to the cutting plane of the cutting system and Shot Cone Zone.

Ground personnel should stay back at least 150 m (500 ft) away and outside the Shot Cone Zone of a working harvester.

A

A 575-502

A Cutting Plane

Saw chain pieces usually travel in the cutting plane of the guide bar, but can deviate to either side. Although the 'Shot Cone Zone' reflects the most likely chain shot path, deflection can occur, substantially expanding the distance and area chain pieces may travel.

860C-446

A 150 m (500 ft)

Hazard Zone

Chain shot projectiles travelling at the speed of a bullet can travel far beyond the above recommended stay back distance.

The stay back distance will help reduce the risk of a chain shot injury, but not eliminate it.

The following items should be observed in accordance with the saw manufacturer's recommendations: A

• Cutting system maintenance.

A

• Saw chain maintenance.

575-503

• Clean and dress guide bars on a regular basis.

A Shot Cone Zone

• Replace worn drive sprockets.

1.13

Safety Do not exceed the manufacturer’s recommendations for chain speed. Cutting systems must be inspected frequently. Dull, damaged saw chains should be immediately removed from service for inspection, repair or replacement. Saw chain loops which have broken twice, must be removed from service.

Drive sprockets must be aligned with the groove of the guide bar. Ensure the saw chain/guide bar lubrication system is functioning properly: 0.404-pitch cutting systems should use approximately 7.6 L (2 US gal) of guide bar/chain lubricant or more per eight hour shift in harvesting operations - more when used in processing operations. Three-quarter-pitch cutting systems should use approximately 9.5 L (2.5 US gal) or more per eight hour shift in harvesting applications - more when used in processing operations.

OPERATIONAL RECOMMENDATIONS IN GENERAL: • Never begin a cut with the machine operator and ground personnel in the Shot Cone Zone.

• Always begin a cut as close to the ground as possible.

• Always use new and approved parts when assembling and repairing chain.

• Maintain chain in agreement with chain manufacturer’s recommendations.

• Never force a dull chain to cut. A sharp chain places less wear and tear on the cutting system.

• Chain should be sharpened or replaced with a sharp chain at least once per operational shift, or more often if damaged.

Tigercat TH570 Harvesting Head IN COLD CUTTING CONDITIONS: • Use a lighter weight lubricant, if possible, doubling the flow rate.

• Periodically cycle the guide bar without cutting (air cuts), this increases lubricant present on the cutting system.

• Reduce bar feed force.

CONDUCT PROPER GUIDE BAR MAINTENANCE: • Clean the guide bar groove from bar tip to bar tail and keep the oil hole open.

• Turn the guide bar over on a daily basis to equalize wear.

• Cycle the guide bar several times to remove moisture from the guide bar tip.

• Maintain proper chain tension, checking it often.

• During work breaks and at the end of each shift, relieve chain tension to prevent damage to the guide bar tip, saw motor and/or the chain as the chain cools and contracts.

• Reduce chain speed.

In simple terms, your harvester head, when operational, should be treated as if it is two loaded guns (the bar tip and the bar tail) that pose a risk of serious injury or death to the machine operator and ground personnel.

The risk of a chain shot event cannot be eliminated, but the risks can be reduced by following the recommendations provided by your cutting system manufacturer, and the operational recommendations presented here.

• Depth gauges (rakers) must be maintained through the life of a chain.

• Never exceed your chain manufacturer’s operation recommendations.

1.14

Tigercat TH570 Harvesting Head

Safety

SERVICING SAFETY PRECAUTIONS

• Release hydraulic pressure on all accumulators on the harvesting head. Follow the specific safety, maintenance, and operating procedures provided by the harvesting head manufacturer.

• Never place any part of your body between the roll arms or delimbing arms. This area is a crush zone.

Keep clear to avoid personal injury or death.

• Never place any part of your body near the rolls.

Avoid the risk of entanglement in moving parts.

Keep clear to avoid personal injury or death.

• Never place any part of your body in front of the saw guide (bar). Avoid the risk of dismemberment. Keep clear to avoid personal injury or death.

• Conduct maintenance inspections at least as frequently as recommended in section 3 of the THIS MANUAL.

• When working in the area of the roll arms, delimbing arms, or rolls and when changing the saw guide (bar) or saw chain the machine must be completely shut down, with the battery disconnect switch to the OFF position.

24863A

OFF

ON 24863A R0

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

This machine is equipped with a remotely operated battery disconnect relay. Some wiring on the machine is live even when the battery disconnect switch is off. When servicing the electrical system, remove the battery cables from the batteries disconnecting the negative cables first.

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

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

1.15

• Do not change the pressure settings of any hydraulic valves or make structural modifications to the harvesting head without obtaining authorized instructions from the harvesting head manufacturer.

Safety

Tigercat TH570 Harvesting Head

PARKING THE HEAD

PARKING THE HEAD TILTED DOWN

Before beginning any service work on the harvesting head, it must be parked in one of two service positions: upright or tilted down.

1. Park the machine on level ground.

PARKING THE HEAD UPRIGHT

3. Tilt the head DOWN.

1. Park the machine on level ground.

4. Close all the knife arms.

2. Fully extend the main and stick booms and lower the head straight down until its full weight rests on the ground.

5. Fully open the feed wheel arms.

3. Close all the knife arms.

4. Close the feed wheel arms.

5. Turn OFF the system switch on the electrical control box.

2. Raise the boom to provide clearance to tilt the head down.

6. Fully extend the main and stick booms. Lower the head to rest on the front knife arms and feed wheels with the saw housing off the ground as shown below.

7. Turn OFF the system switch on the electrical control box.

8. Turn off the pilot switch.

6. Turn off the pilot switch.

9. Turn OFF the engine.

7. Turn OFF the engine.

10. Turn OFF the battery disconnect switch.

8. Turn OFF the battery disconnect switch.

11. Install the tilt frame lock bolts as outlined on next page.

9. Install the tilt frame lock bolts as outlined on next page.

570-40

Head Parked Tilted Down

570-33

Head Parked Upright

1.16

Tigercat TH570 Harvesting Head

Safety

TILT FRAME LOCK BOLTS The tilt frame is equipped with two service locking bolts.

The lock bolts, one on each side of the attachment, are used to lock the attachment in the upright or tilted down position for service and repair.

A

A

570-34

A Lock Bolt Position For upright parking

570-33

A Lock Bolt Storage Location

When not in use the lock bolts are stored in the lock bolt storage hole on the attachment frame.

A

570-40

A Lock Bolt Position For tilt-down parking

1.17

Safety

Tigercat TH570 Harvesting Head

FLUID INJECTION INJURY Hydraulic and diesel fuel systems on forestry machines operate at very high pressures, often 207 bar (3000 psi) and above. If a loose connection or a defect in a hose should occur, a fine, high velocity stream of fluid will result. Even for systems pressurized to as little as 7 bar (100 psi), this fluid stream can penetrate human skin as if it were a hypodermic needle.

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

IN THE EVENT OF ANY SUSPECTED FLUID INJECTION INJURY • Report the injury to your supervisor immediately.

• Seek professional medical attention immediately.

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

As always the best defence against suffering the effects of fluid injection is to prevent the accident from occurring in the first place.

WHEN SEARCHING FOR POSSIBLE FLUID LEAKS • Never search for leaks with your bare hands. Always wear thick protective gloves.

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

• Be sure to wear safety goggles for eye protection.

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

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

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

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

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

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

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

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

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

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

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

1.18

Tigercat TH570 Harvesting Head

Safety

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

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

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

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

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

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

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

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

• Ensure that protective shrouds are installed on all grease gun nozzles as safety devices.

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

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

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

1.19

Safety

Tigercat TH570 Harvesting Head

LIGHTNING SAFETY AWARENESS

LIGHTNING SAFETY

WHAT IS A LIGHTNING STRIKE?

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

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

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

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

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

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

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

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

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

1. Designate a member of your crew to: • Monitor daily weather forecasts • Observe local weather conditions • Alert all other members of the crew when a possible lightning threat develops.

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

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

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

5. Do not follow the now obsolete guideline to take shelter when the time between seeing lightning and hearing thunder is 30 seconds or less. This does not provide sufficient time to ensure safety. Always follow step 4.

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

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

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

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

1.20

Tigercat TH570 Harvesting Head The second safest location during lightning activity is inside a fully enclosed car, van, truck or bus with a metal roof and metal sides. The electrical energy of a lightning strike to these vehicles is carried to ground by the conducting outer metal surfaces. This is called the skin effect.

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

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

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

Safety WHAT TO DO IF YOU ARE OUTSIDE AND SEE LIGHTNING OR HEAR THUNDER. IF YOU CAN, GET INSIDE: Run to the nearest building, motor vehicle or fully enclosed ROPS equipment cab immediately. Being anywhere outside is not safe.

IF INSIDE A BUILDING: • Don’t watch the lightning storm from open windows or doorways. Stay in inner rooms.

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

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

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

Rubber tires on motor vehicles and heavy equipment do not increase safety from lightning strikes. Lightning has already travelled a great distance through the air to strike the vehicle. In comparison a few inches of rubber in a tire offers absolutely no additional insulation.

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

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

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

1.21

Safety IF YOU ARE CAUGHT OUTSIDE AND HAVE NO WHERE ELSE TO GO: • Avoid wide-open areas where you project above the surrounding landscape.

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

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

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

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

• Avoid entering any small enclosures or shelters.

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

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

Tigercat TH570 Harvesting Head WHAT TO DO IF A CO-WORKER HAS BEEN STRUCK BY LIGHTNING: • The victim does not carry any electrical charge.

There is no danger to anyone helping this person.

You can touch him or her immediately.

• Call your local emergency response telephone number immediately.

• If the victim has no pulse, their heart has stopped or they have stopped breathing, start cardiopulmonary resuscitation (CPR) or mouth – to-mouth resuscitation immediately. Use a portable defibrillator if one is available.

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

• To further increase your awareness about lightning safety, see the following web sites.

• National Weather Service Lightning Safety http://www.lightningsafety.noaa.gov

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

• National Lightning Safety Institute http://www.lightningsafety.com

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

• Do not use the telephone except for emergencies.

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

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

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

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

1.22

Tigercat TH570 Harvesting Head

Safety

FIRE PREVENTION

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

1.23

Safety

Tigercat TH570 Harvesting Head

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

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

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

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

• Any pressurized water systems on the machine (if applicable) must be charged and in working order. Refer to PRESSURIZED WATER SYSTEM MAINTENANCE in SECTION 3.

• You must have the proper fire extinguishers on site.

Most fires involving mobile forestry equipment will be Class A or B. • Dry chemical extinguishers should be rated ABC and pressurized water extinguishers should be rated A.

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

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

• Class A fires involve ordinary combustibles such as wood, cloth, paper, rubber and many plastics, Class B fires occur with flammable liquids such as diesel fuel, oil and grease and Class C fires apply to energized electrical equipment.

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

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

• The fire detection system* must be in working order.

Refer to FIRE DETECTION SYSTEM in SECTION 2.

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

• The fire suppression system** must be charged and in working order. Refer to FIRE SUPPRESSION SYSTEM (OPTIONAL) in SECTION 2.

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

• You must be familiar with the recommended procedures for fire contained in the emergency action plan of your company.

1.24

Tigercat TH570 Harvesting Head • You must follow all national, state/provincial and local regulations dealing with fire fighting in effect in your specific geographic region. Regulations will vary from region to region but most will usually require: • Workers assigned to fire fighting duties must be physically capable of performing them safely and effectively.

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

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

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

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

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

Safety BEFORE DECIDING TO FIGHT THE FIRE, BE CERTAIN THAT: 8. The fire is small and not rapidly spreading.

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

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

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

12. Be aware, hoses containing engine coolant, diesel fuel or hydraulic hoses could fail during a fire. If this happens, hot coolant, fuel or oil could possibly be ignited by the fire.

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

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

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

WHAT TO DO WHEN A MACHINE FIRE OCCURS

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

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

2. Turn OFF the engine.

3. Activate the fire suppression system**.

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

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

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

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

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

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

1.25

Safety

Tigercat TH570 Harvesting Head WHAT TO DO AFTER A MACHINE FIRE HAS OCCURRED •Before returning the machine to work: • Make sure the cause of the fire is determined and all appropriate repairs are completed.

• Make sure the fire detection system* or the fire suppression system** is properly serviced and in working order (if applicable).

• All extinguishers used in fighting the fire must be replaced or recharged.

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

800051

Typical Fire Extinguisher Access Hole

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

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

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

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

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

• Remain with the machine until help arrives.

1.26

Tigercat TH570 Harvesting Head

Safety

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

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

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

• All electrical systems must be completely deenergized prior to any cleanup.

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

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

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

To neutralize the acidic paste on large surfaces, spray or wash these areas with a mixture of three parts hot water to one part baking soda. Allow this mixture to stand for several minutes before rinsing with warm water. Wash the area with a mild soap and water solution. Rinse thoroughly with water.

Blow-dry to remove all residual water. Cleaning of electrical contacts should be done using an electrical contact cleaner that has no flash or fire point and is non-corrosive and non-conductive such as CRC Contact Cleaner 2000.

1.27

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

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

Safety

SAFETY LABELS

Tigercat TH570 Harvesting Head READ OPERATOR’S & SERVICE MANUALS

HEAD SAFETY LABELS – TH570 HARVESTING HEAD The following safety labels are installed on the harvesting head. All labels must be periodically cleaned and inspected to ensure legibility is maintained. Replace any label that becomes illegible, damaged or removed.

READ THE OPERATORS MANUAL

This label informs you that before starting any service work you must turn the machine’s engine off, remove the key, and consult the operator’s manual and service manual for proper service procedures. Operating, servicing or making machine adjustments without fully understanding how the machine works can result in damage to the machinery, serious injury or death. Only trained and qualified personnel should service this equipment.

This label informs you that before operating this head, CAREFULLY read and understand the operator’s manual completely. Observe the instructions and safety rules. If an operator does not follow instructions and safety rules, they expose themselves as well as any bystanders to unnecessary hazards. Keep the manual in a safe and easily accessible location for future reference.

There is one of these labels located on the harvesting head, on the side of the main frame. Only trained and qualified personnel should operate this equipment.

1.28

Tigercat TH570 Harvesting Head TILT FRAME LOCK BOLTS:

Safety CAUTION, CUTTING HAZARD

Two tilt frame lock bolts are provided. There is one located on either side of the head. The locking bolts are used to lock the head to the tilt frame in one of two positions. One is in an upright (vertical) position for lubrication and service. The other is a down (horizontal) position for access to the hydraulic control valves and components attached to the back of the head.

LOCK BOLT, STORAGE LOCATION

This label informs you of the storage location for the tilt frame lock bolt. Always store the tilt frame lock bolts in their storage locations while operating the harvesting head for easy access when they are required.

LOCK BOLT, LOCK LOCATION

TILT FRAME LOCK BOLT LOCK POSITION

This label informs you of potential cutting hazards. The chain saws, knife arms, drive wheels and measuring wheels have razor sharp edges. KEEP CLEAR of these edges unless performing service and maintenance.

ALWAYS wear protective gloves and clothing to prevent cutting injuries when having to service or maintain these items. There are two of these labels located on the harvesting head, one on each side of the main frame.

29903A R1

This label informs you of the lock location for the tilt frame lock bolt. Always install the tilt frame lock bolts in their lock positions when the head is not operating.

1.29

Safety WARNING, CRUSH HAZARD

Tigercat TH570 Harvesting Head WARNING, THROWN OBJECTS HAZARD

WARNING

• THROWN OBJECTS HAZARD. • KEEP CLEAR AS HIGH SPEED EJECTION OF CHAIN SAW PARTS CAN CAUSE SERIOUS INJURY OR DEATH.

This label informs you of the crush hazard posed by the tilt frame. The tilt frame is a potential crush hazard with the machine on or off, as well as when the head is not pinned to a machine at all. NEVER stand in front of the head or have any part of your body between the tilt frame and main frame unless the engine and head computer are turned off, head is parked on firm ground with the boom fully extended and the tilt frame lock bolts are installed in their lock position. There are two of these labels located on the harvesting head, one on each leg of the tilt frame.

WARNING, CUTTING HAZARD

• NEVER POSITION HEAD SO THAT CHAIN SAW BARS ARE IN LINE WITH ANY BYSTANDERS, OTHER MACHINES OR CAB. 29921A R1

This label informs you of the thrown objects hazard that exists when operating this harvesting head. Warn all personnel to stay 500 feet (152 meters) away when operating the machine and head. During operation objects can be thrown or ejected at high speed and can travel long distances. Ejection of chain saw parts or other objects can cause serious injury or death.

NEVER operate or position the head with the chain saw bars in line with any bystanders, other machines or facing towards the operator’s cab.

Orient the bar and chain so high velocity parts are thrown away from any bystanders and equipment.

ALWAYS follow chain manufacturer’s guidelines for proper use and maintenance.

This label informs you of the cutting hazard that exists when operating the chain saws on this harvesting head.

KEEP CLEAR of the chain saws to avoid serious injury or death. NEVER stand or work in the cutting direction of the chain saws unless the engine and head computer are turned off. Ensure all personnel are at least 500 feet (152 meters) away while the engine is running. There are either two or four of these labels located on the harvesting head depending on the number of chain saws, one on each side of the saw housing(s).

ALWAYS be aware of the location of other machines and personnel who are working in the harvesting area and be prepared to stop operations if they enter your working area without warning. Be prepared for this potential and take appropriate action if required!

This label is located inside the cab in full view of the operator. In the case that this harvesting head is purchased “loose” without a machine, one of these labels will be sent along with the head to be affixed to the inside of the cab at a future date.

1.30

Tigercat TH570 Harvesting Head

Safety

WARNING, ENTANGLEMENT HAZARD

WARNING, MULTIPLE CRUSH HAZARDS

This label informs you of the entanglement hazards that exist when operating this harvesting head. KEEP CLEAR of entanglement hazards caused by rotating components. ALWAYS ensure that the engine and head computer are turned off, the head is parked on firm ground with the boom fully extended and the tilt frame lock bolts are installed in their lock position. There are two of these labels located on the harvesting head, one on each wheel arm.

This label informs you of the multiple crush hazards that exist when operating this harvesting head. KEEP CLEAR of potential crush zones: knife arms, wheel arms and chain saw bars. NEVER have any part of your body between the knife arms, wheel arms or between a chain saw bar and saw housing unless the engine and head computer are turned off, head is parked on firm ground with the boom fully extended and the tilt frame lock bolts are installed in their lock position. There are two of these labels located on the harvesting head, one on each side of the main frame.

1.31

Safety FIRE PREVENTION

Tigercat TH570 Harvesting Head FIRE EXTINGUISHER ACCESS HOLE

This label indicates the location of each FIRE EXTINGUISHER ACCESS HOLE. The label is installed on each fire extinguisher hole on the engine door, pump compartment door and L.H. service door.

This label advises operator's of the following: Read understand and follow the FIRE PREVENTION guidelines in this manual. These guidelines provide all the necessary action required to preventing fires on this machine. DO NOT OPERATE THIS MACHINE until you have read these instructions and have performed any necessary maintenance required that will prevent the potential of a fire from starting on this machine.

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

Maintain a CHARGED fire extinguisher on the machine at all times, know where it is and KNOW HOW TO USE IT

1.32

Tigercat TH570 Harvesting Head

Safety

THE FOLLOWING ARE SOME HARVESTING HEAD DO NOTS: • Do not allow anyone in areas of the harvesting head or machine where they may be crushed by moving components including knife arms, wheel arms and tilt link. All personnel must remain at least 500' (150m) away • Do not operate or position the head with the chain saw bars in line with any bystanders, other machines or facing towards the operator’s cab.

• Do not operate a harvesting head in a populated area.

• Do not allow anyone to be in line with a rotating saw chain.

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

• Do not operate the head with any of the saw chain guards removed.

• Do not use your bare hand to check for fluid leaks.

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

• Do not stand, sit or climb on any part of the attachment, either with the clamping arms and wheel arms open or closed.

• Do not stand under the harvesting head.

• Do not remove or alter any part of the head or control system.

• Do not exceed the capacity of the head or machine.

• Do not neglect saw chain inspection, maintenance and replacement.

• Do not neglect to repair worn or damaged components.

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

• Do not exit the machine or perform any maintenance or service unless the head is placed in the park position and the head computer and engine are turned off.

• Do not assume that visitors and other workers are aware of harvesting head dangers.

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

• Do not leave the machine unattended while the engine is running.

• Do not work alone. Regularly inform other crew members of your intentions, location and length of time to perform duties.

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

• Do not neglect to read and follow all instructions provided by the harvesting head and machine manufacturer.

1.33

Safety

Tigercat TH570 Harvesting Head

1.34

Tigercat TH570 Harvesting Head SECTION 2 - CONTROLS AND OPERATION Read and understand the entire contents of this manual, and all manuals for any attachments or accessories associated with this equipment, prior to operating or servicing.

ISSUE 2.2, NOVEMBER 2016

CONTENTS - SECTION 2 C

CLEAR CUT HARVESTING..................................................................................................................................... 2.16 CONTROL HANDLE KEYPAD BUTTON FUNCTIONS......................................................................................... 2.12 CONTROL HANDLES - 4 BUTTON........................................................................................................................... 2.8 CONTROL HANDLES - 18 BUTTON......................................................................................................................... 2.4 CONTROL SYSTEM COMPONENTS....................................................................................................................... 2.3 CUTTING................................................................................................................................................................... 2.19 CUT TO LENGTH AT THE STUMP......................................................................................................................... 2.18

D

DELIMBING............................................................................................................................................................... 2.17

F

FALLING AND DELIMBING..................................................................................................................................... 2.17 FELLING PROCESS................................................................................................................................................ 2.16 FULL TREE THINNING............................................................................................................................................ 2.18

H

HARVESTING PLAN................................................................................................................................................ 2.15

O

OPERATION............................................................................................................................................................. 2.15

P

PARKING THE HEAD............................................................................................................................................... 2.22 PREPARATION......................................................................................................................................................... 2.15

S

SELECT TREE THINNING...................................................................................................................................... 2.18 SPECIAL TECHNIQUES.......................................................................................................................................... 2.21 SYSTEM SHUT DOWN.............................................................................................................................................. 2.3

W

WELDING.................................................................................................................................................................... 2.3

Controls and Operation

Tigercat TH570 Harvesting Head B A

1 2

3

4

5

C

8 6A 7 6

9

570-04 TH570-008

Control system 2.2components

Tigercat TH570 Harvesting Head

Controls and Operation

CONTROL SYSTEM COMPONENTS

4. PRINTER This is an optional device for typically printing harvesting related details. The printer is located in the cab to the right of the operator’s seat. This printer connects to the main controller through one of the USB ports.

1. CAB ELECTRICAL CONTROL BOX

The electrical control box mounted on the cab wall behind the operator’s seat houses the main controller and the joystick input module.

The electrical terminal assembly (A) contains fuses for various circuits, and wiring connections for the main controller and joystick modules.

5. CONTROL HANDLES Two control handles are used for operator control of machine and harvesting head functions. Control handles and button arrangement vary depending on option selected, see CONTROL HANDLES in this section.

There are two primary switches located on the electrical control box. A red locking switch (B) on the top left of the box, and a black switch with a green LED (C) on the bottom right of the box. The red locking switch (B) is a service disconnect which must not be switched unless the system has been shut down for over 90 seconds and only power # 8 LED on the main controller is on. The only case for switching the service disconnect is when welding work is required or for long term storage the switch will isolate the valuable measuring system components. The black switch (C) controls initialization of the system and display. The head modules are only active when the carrier pilot system is active.

IMPORTANT !

Prior to operating the machine, navigate to the “Keypad Status/Test” page to check the keypad layout and familiarize yourself with the button functions for the current operator.

6. D5 PRIO DISPLAY The computer display is located in the cab typically on the LH side facing the operator. It has a multifunction colour display with touch screen functionality.

6A. D5 PRIO PC/OPTIMIZATION DISPLAY

IMPORTANT !

If welding must be done, fully shut down the Tigercat D5 measuring system. This includes turning the main system switch off, then after 90 seconds, turn the red service disconnect switch off. Failure to follow this procedure will result in irreparable damage to valuable measuring system components.

This computer display is located in the cab and is used with the PC/optimization operating system.It has a multifunction colour display with touch screen functionality.

7. HEAD ELECTRICAL BOX The head electrical box is located on the harvesting head and contains fuses for each module and a terminal strip for making connections between the modules and solenoids on the head.

PROCEDURE FOR FULL SYSTEM SHUT DOWN • Turn ignition off • Turn off battery disconnect (if equipped)

8. 8. D5IO12 (AG046) INPUT AND OUTPUT MODULE

• Turn off system switch (C)

Two modules are attached to the head electrical box that control output to coils for all functions.

Instructions come from the main controller and communicates via the CAN 1.

• Wait at least 90 seconds for computer to back up • Turn off service disconnect switch (B) 2. D5MC-F (AG060) MAIN CONTROLLER

9. D5CI12 (AG055) HEAD CONTROLLER

The main controller is the computer for the complete Tigercat D5 measuring system. The main controller communicates with all other modules via the CANBUS, interfaces with the display via DVI and USB cables, and has USB interface for the printer, license key, and memory stick transfers.

The head controller has inputs for all head sensors and communicates with the main controller and head modules via the CAN 1.

3. D5IO48 (AG054) CONTROL HANDLE INPUT MODULE The control handle input module is located in the electrical control box mounted on the cab wall behind the operator’s seat. This module accepts input from the control handles and communicates with the main controller via CAN 2.

2.3

Controls and Operation

Tigercat TH570 Harvesting Head

CONTROL HANDLES - 18 BUTTON

LEFT CONTROL HANDLE

575 - A40

Tigercat 800 series machine typical control layout. Other machine controls may be different, refer to specific machine Operators manual.

STICK • Move joystick BACK to move stick IN. • Move joystick FORWARD to move stick OUT. SWING • Move joystick RIGHT to swing upper frame RIGHT. • Move joystick LEFT to swing upper frame LEFT.

2.4

Tigercat TH570 Harvesting Head

Controls and Operation

RIGHT CONTROL HANDLE

575 - A41

Tigercat 800 series machine typical control layout. Other machine controls may be different, refer to specific machine Operators manual.

MAIN BOOM • Move joystick BACK to RAISE boom.

• Move joystick FORWARD to LOWER boom.

HEAD ROTATE • Move joystick RIGHT to ROTATE attachment CLOCKWISE. • Move joystick LEFT to ROTATE attachment COUNTERCLOCKWISE.

2.5

Controls and Operation

Tigercat TH570 Harvesting Head A - SHIFT - Push for secondary function assigned to the same button, similar to a computer keyboard.

LEFT CONTROL HANDLE - THUMBSWITCHES AND TRIGGER SWITCH

B - NOT USED

A

B C

D

E F G

H

C - NOT USED

1 2 3 4 5 6 7 8 9 10

D - SAW - Push to operate manual or automatic sawing.

E - TILT UP - Push to tilt attachment up.

F - TILT DOWN - Push to tilt attachment down.

G - Levelling Machine Tilt upper structure to the LEFT G - Harvesting Head

J

Knives OPEN H - Levelling Machine Tilt upper structure to the RIGHT H - Harvesting Head Knives CLOSE J - HEAD OPEN/CLOSE Push UP trigger switch to open head.

Pull DOWN trigger switch to close head.

LEFT CONTROL HANDLE - BUTTON SWITCHES

575 - A40

1. Species 1 2. Species 2 3. Species 3 4. Species 4 5. Grade 1 6. Reset IMPORTANT !

Prior to operating the machine, navigate to the “Keypad Status/Test” page to check the keypad layout and familiarize yourself with the button functions for the current operator.

7. Grade 2 8. Grade 3 9. Back knife OPEN 10. Front knives OPEN

NOTE: All control handle thumbswitches, and buttons are programable to suit operator preferences. To reprogram the buttons refer to the MEASURING AND CONTROL SYSTEM - TIGERCAT D5 PRIO OPERATORS MANUAL - KEYPAD BUTTON MAPPING. For a list of button functions, refer to CONTROL HANDLE KEYPAD BUTTON FUNCTIONS.

2.6

Tigercat TH570 Harvesting Head

Controls and Operation

RIGHT CONTROL HANDLE - THUMBSWITCHES AND TRIGGER SWITCH

A - FIND END - Push to operate the find end feature at the next start of automatic feeding.

B - ALL KNIVES OPEN - Push to pulse open all knives.

2 1 4 3 6 5 8 7 10 9

A

B C E F

C - WHEEL ARMS OPEN - Push to pulse open wheel arms.

D

D - STOP - Push to stop any automatic functions such as feeding.

G H

E - UP PRESET - Push to change to a longer preset.

F - DOWN PRESET - Push to change to a shorter preset.

G - Levelling Machine

J

Tilt upper structure FORWARD G - Harvesting Head Slow feed forward H - Levelling Machine Tilt upper structure BACKWARD H - Harvesting Head Slow feed reverse J - FEED 575 - A41

Push UP trigger switch to FEED REVERSE Pull DOWN trigger switch to FEED FORWARD RIGHT CONTROL HANDLE - BUTTON SWITCHES 1. Preset 1 2. Preset 2 3. Preset 3 4. Preset 4

IMPORTANT !

Prior to operating the machine, navigate to the “Keypad Status/Test” page to check the keypad layout and familiarize yourself with the button functions for the current operator.

5. Preset 5 6. Preset 6 7. Preset 7

NOTE: All control handle thumbswitches, and buttons are programable to suit operator preferences.

To reprogram the buttons refer to MEASURING AND CONTROL SYSTEM - TIGERCAT D5 PRIO OPERATORS MANUAL - KEYPAD BUTTON MAPPING. For a list of button functions, refer to CONTROL HANDLE KEYPAD BUTTON FUNCTIONS.

8. Preset 8 9. Front knives CLOSE 10. Back knife CLOSE

2.7

Controls and Operation

Tigercat TH570 Harvesting Head

CONTROL HANDLES - 4 BUTTON

LEFT CONTROL HANDLE

A

570-45

A Front of machine

Tigercat 800 series machine typical control layout. Other machine controls may be different, refer to specific machine Operator’s Manual.

STICK • Move handle BACK to move stick IN. • Move handle FORWARD to move stick OUT. SWING • Move handle RIGHT to swing upper structure RIGHT (clockwise).

• Move handle LEFT to swing upper structure LEFT (counterclockwise).

2.8

Tigercat TH570 Harvesting Head

Controls and Operation

RIGHT CONTROL HANDLE

A

570-46

A Front of machine

Tigercat 800 series machine typical control layout. Other machine controls may be different, refer to specific machine Operator’s Manual.

MAIN BOOM • Move handle BACK to RAISE boom.

• Move handle FORWARD to LOWER boom.

HEAD ROTATE • Move handle RIGHT to ROTATE head CLOCKWISE. • Move handle LEFT to ROTATE head COUNTERCLOCKWISE.

2.9

Controls and Operation LEFT CONTROL HANDLE - BUTTONS AND ROCKER SWITCH

Tigercat TH570 Harvesting Head RIGHT CONTROL HANDLE - BUTTONS AND ROCKER SWITCH

A A B

C B D C E D F F

E

570-45

570-46

F Front of machine

F Front of machine

IMPORTANT !

Prior to operating the machine, navigate to the “Keypad Status/Test” page to check the keypad layout and familiarize yourself with the button functions for the current operator.

IMPORTANT !

Prior to operating the machine, navigate to the “Keypad Status/Test” page to check the keypad layout and familiarize yourself with the button functions for the current operator.

NOTE: All control handle buttons are programable to suit operator preferences. The rocker switch is not programable. To reprogram the buttons refer to KEYPAD BUTTON MAPPING. For a list of button functions, refer to CONTROL HANDLE KEYPAD BUTTON FUNCTIONS.

NOTE: All control handle buttons are programable to suit operator preferences. The rocker switch is not programable. To reprogram the buttons refer to KEYPAD BUTTON MAPPING. For a list of button functions, refer to CONTROL HANDLE KEYPAD BUTTON FUNCTIONS.

A. ALL KNIVES OPEN/CLOSE

A. FEED

Push rocker switch to the LEFT to open knives.

Push rocker switch to RIGHT to FEED REVERSE

Push rocker switch to the RIGHT to close knives.

Push rocker switch to LEFT to FEED FORWARD

B. SAW - Push to operate manual or automatic sawing,

B. HEAD CLOSE - Push to close knives and feed wheel arms, or alternate CLOSE FEED WHEEL ARMS only.

C. TILT UP - Push to tilt head up.

D. TILT DOWN - Push to tilt head down.

E. TOP SAW - Push to operate manual or automatic sawing for the top saw.

C. HEAD OPEN - Push to open knives and feed wheel arms, or alternate OPEN FEED WHEEL ARMS only.

D. SLOW FEED REVERSE - Push to manually feed the tree slowly in reverse, or alternate extra programable button.

E. BACK KNIFE OPEN - Push for manual control of the back knife open.

2.10

Tigercat TH570 Harvesting Head

Controls and Operation

18 BUTTON KEYPAD

1 2 3

4 5

6

7 10 13 16

8 11 14 17

A

9 12 15 18

570-47

A Front of machine

NOTE: All buttons are programable to suit operator preferences. To reprogram the buttons refer to KEYPAD BUTTON MAPPING. For a list of button functions, refer to CONTROL HANDLE KEYPAD BUTTON FUNCTIONS. 1. SPECIES 1 2. UP PRESET - Push to change to a longer preset.

3. DOWN PRESET - Push to change to a shorter preset.

4. PRESET 1 5. FIND END - Push to operate the find end feature at the next start of automatic feeding.

6. TOP MEASURE - Push to increase measured length to use top saw.

7 - 18. PROGRAMABLE - Programable to suit operator preference. For a list of button functions, refer to Control Handle Keypad Button Functions.

2.11

Controls and Operation

Tigercat TH570 Harvesting Head

CONTROL HANDLE KEYPAD BUTTON FUNCTIONS

HEAD CLOSED SEQUENCED

The following is a list of all the functions available that can be assigned to the control handle buttons and a description of the action of the function. Refer to the Measuring and Control System - Tigercat D5 Prio Operators Manual for additional details.

Closes the front knives only while the button is pressed, then closes the back knife and wheel arms when the button is released. Also see settings Front Knives Close Latch Delay, Back Knife(s) Close Delay and Wheel Arms Close Delay.

HEAD OPEN

FRONT KNIVES OPEN

Opens all the knife arms and wheel arms. Also see settings Head Open Delay, Head Open (Knives) Latch Delay and Head Open (wheel Arms) Delay. Pressing the Head Open button for longer than the delay times, the system will actuate the valves for knives open and wheel arms open for a set time (enough to fully open the head).

Manual control of the front knives open. A tap of the button will pulse the front knives open for a set time and a long press of the button will operate the function continuously until the button is released. Also see settings Pulse Open Times – Button (Front Knives) and Delay – Continuous Open.

HEAD CLOSE

FRONT KNIVES CLOSE

Closes all the knife arms and wheel arms. Also see settings Front Knives Close Latch Delay, Back Knife(s) Close Delay and Wheel Arms Close Delay. Pressing the Head Close button for longer than the delay times, the system will actuate the valves for knives close and wheel arms close for a set time (enough to fully close the head).

Manual control of the front knives close. A tap of the button will pulse the front knives close for a set time and a long press of the button will operate the function continuously until the button is released. Also see setting Pulse Close Times – Button (Front Knives).

KNIVES OPEN Opens all the knife arms. Also see settings Knives Open Latch Delay. Pressing the Knives Open button for longer than the delay time, the system will actuate the valves for knives open for a set time (enough to fully open the knives).

KNIVES CLOSE Closes all the knife arms. Also see settings Front Knives Close Latch Delay and Back Knife(s) Close Delay.

Pressing the Knives Close button for longer than the delay times, the system will actuate the valves for knives close for a set time (enough to fully close the knives).

WHEEL ARMS OPEN Opens all the wheel arms. Also see settings Wheel Arms Open Latch Delay. Pressing the Wheel Arms Open button for longer than the delay time, the system will actuate the valves for wheel arms open for a set time (enough to fully open the wheel arms).

WHEEL ARMS CLOSE Closes the wheel arms. Also see settings Wheel Arm Close Delay. Pressing the Wheel Arms Close button will actuate the valves for wheel arms close for a set time (enough to fully close the wheel arms).

HP FRONT KNIVES CLOSE Manual control of the front knives close at a higher pressure. A tap of the button will pulse the front knives close for a set time and a long press of the button will operate the function continuously until the button is released. Also see setting Pulse Close Times – Button (Front Knives).

WHEEL ARMS OPEN (TEMP) Manual control of the wheel arms open. A tap of the button will pulse the wheel arms open for a set time and a long press of the button will operate the function continuously until the button is released. If the head is otherwise closed, after the wheel arms open, it will revert to closed. Also see also settings Pulse Open Times – Button (Wheel Arms) and Delay – Continuous Open.

WHEEL ARMS CLOSE (MANUAL) Manual control of the wheel arms close. Press the button to operate the function continuously until the button is released.

BACK KNIFE(S) OPEN Manual control of the back knife(s) open. A tap of the button will pulse the back knife(s) open for a set time and a long press of the button will operate the function continuously until the button is released. Also see settings Pulse Open Times – Button (Back Knife(s)) and Delay – Continuous Open.

2.12

Tigercat TH570 Harvesting Head

Controls and Operation

BACK KNIFE(S) CLOSE

SLOW FEED FORWARD

Manual control of the back knife(s) close. A tap of the button will pulse the back knife(s) close for a set time and a long press of the button will operate the function continuously until the button is released. Also see setting Pulse Close Times – Button (Back Knife(s)).

Press to manually feed the tree forward slowly. Pressing the Slow Feed Forward button at any point during an automatic feeding cycle will cancel the automatic feeding and switch to manual control. Also use to free a stuck main saw bar.

ALL KNIVES OPEN

SLOW FEED REVERSE

Performs the same as the Front Knives Open or Back Knife(s) Open. Operates all knife arms instead of just the front or back knife(s).

Press to manually feed the tree slowly in reverse.

Pressing the Slow Feed Reverse button at any point during an automatic feeding cycle will cancel the automatic feeding and switch to manual control.

TILT UP Operates the tilt up function when the button is pressed.

Also see setting Tilt Up Time, refer to the MEASURING AND CONTROL SYSTEM - TIGERCAT D5 PRIO OPERATORS MANUAL. If the Tilt Up button is pressed for less than the Tilt Up Time then the tilt will return to float. If the button is pressed for longer than the Tilt Up Time, the tilt will then lock in the tilted up position.

ALIGN LH FEED FWD Used to operate the left hand feed when handling multiple stems.

ALIGN RH FEED FWD Used to operate the right hand feed when handling multiple stems.

TILT UP AND LOCK

ALIGN LH FEED REV

When this button is pressed, the tilt up will activate as long as the button is pressed. When released, the tilt will be locked in that position. Useful for positioning the head in intermediate positions. Often this button assignment is a double-click of the tilt up button.

Used to operate the left hand feed when handling multiple stems.

TILT DOWN Tilts the head down as long as the button is pressed and also has a delay off set by the setting Tilt Down Time.

After tilting down, the head will revert to tilt float.

TILT FLOAT When pressed, the head will go into tilt float allowing the head to swing freely within the tilt frame.

FEED FORWARD Press to manually feed the tree forward. Pressing the Feed Forward button at any point during an automatic feeding cycle will cancel the automatic feeding and switch to manual control. This button can also be assigned as a start key (see Settings > Operating > Feed Start Keys), refer to the MEASURING AND CONTROL SYSTEM - TIGERCAT D5 PRIO OPERATORS MANUAL. In this case, a short tap of the button will start the automatic feeding. A long press will feed manually.

FEED REVERSE Press to manually feed the tree in reverse. Pressing the Feed Reverse button at any point during an automatic feeding cycle will cancel the automatic feeding and switch to manual control.

ALIGN RH FEED REV Used to operate the right hand feed when handling multiple stems.

SAW Used to operate manual or automatic sawing, depending on various saw settings. The saw button will operate the currently selected saw (main saw or top saw).

TOP MEASURE (IF EQUIPPED) Press to toggle the selected saw between the main saw and top saw. If a feeding cycle is in progress, the system will feed the length to the selected saw.

This button can also be assigned as a start key (see Settings > Operating > Feed Start Keys), refer to the MEASURING AND CONTROL SYSTEM - TIGERCAT D5 PRIO OPERATORS MANUAL. In this case, pressing the button will select the top saw and start the automatic feeding.

TOP SAW CUT (IF EQUIPPED) Used to operate manual or automatic sawing for the top saw, depending on various saw settings.

STOP This button function is used to stop or interrupt any automatic functions such as feeding.

2.13

Controls and Operation

Tigercat TH570 Harvesting Head

SHIFT KEY

SPECIES #

The shift button allows multiple functions to be assigned to the same button. For example, a function can be assigned to button ‘A’ and a different function is assigned if the Shift Key and ‘A’ are pressed together. Works similar to a computer keyboard.

Selects a specific species number, This button can also be assigned as a start key (see Settings > Operating > Feed Start Keys), refer to the MEASURING AND CONTROL SYSTEM - TIGERCAT D5 PRIO OPERATORS MANUAL. In this case, pressing the button will select the species and start the automatic feeding.

RESET Resets the length and restarts measurement of the tree.

FIND END Press this button to indicate that the system should operate the ‘Find End’ feature at the next start of automatic feeding. This button can also be assigned as a start key (see Settings > Other > Find End Button as Start Key), refer to the MEASURING AND CONTROL SYSTEM - TIGERCAT D5 PRIO OPERATORS MANUAL. In this case, pressing the button will start automatic feeding. The system will operate the find end function, then proceed to feed to the selected length.

NEAREST Pressing this button during automatic feeding will override the current selected length and feed the tree to the nearest length.

PRESET + Selects the next higher priority preset selection (generally longer length). This button can also be assigned as a start key (see Settings > Operating > Feed Start Keys), refer to the MEASURING AND CONTROL SYSTEM - TIGERCAT D5 PRIO OPERATORS MANUAL. In this case, pressing the button will select the next higher preset and start the automatic feeding.

PRESET Selects the next lower priority preset selection (generally shorter length). This button can also be assigned as a start key (see Settings > Operating > Feed Start Keys), refer to the MEASURING AND CONTROL SYSTEM TIGERCAT D5 PRIO OPERATORS MANUAL. In this case, pressing the button will select the next lower preset and start the automatic feeding.

PRESET # Selects a specific preset length number. This overrides the current selected preset and only applies to the current feeding cycle (reset when a saw cut is made).

This button can also be assigned as a start key (see Settings > Operating > Feed Start Keys), refer to the MEASURING AND CONTROL SYSTEM - TIGERCAT D5 PRIO OPERATORS MANUAL. In this case, pressing the button will select the preset and start the automatic feeding.

2.14

Tigercat TH570 Harvesting Head

OPERATION The efficient operation of the harvesting head depends on practice and experience. The head will not operate to its full potential if the adjustments are not correct and/or knife edges and saw chain are dull.

PLANNING THE HARVESTING AREA

Controls and Operation Planned, regular site meetings need to be held to ensure the conditions of the plan are being upheld and to address possible aspects encountered not already accommodated in the plan.

PREPARATION It is mandatory that the operator has had experience operating the harvester prior to felling trees.

A

Planning plays a decisive role in mechanized timber harvesting. Successful planning utilizes previous experience.

Many aspects are considered when formulating a harvesting plan. These include terrain (area to be harvested), ground conditions, water ways, soil type, erosion control, species, stem density, stem form, under growth, access, roading, boundaries, historic sites, environmental areas, transmission lines, gas lines, public access ways, storage sites, landings, equipment to be used, staff ability and haul distance.

These factors all determine the way a plan is formulated to gain a safe, productive and profitable harvesting operation.

Site inspection is necessary by operators before harvesting operations commence. Ensure all members of the harvesting team are aware of the constraints, hazards and requirements of this harvesting operation.

B

TH575-065A

A Left side B Right side

Orientation/Direction

The machine has been completely serviced and is in good condition with clean windows.

Inspection of the saw chains - sharpened, tensioned, and in good condition.

Test all controls before commencing work.

Run all the functions to ensure that the hydraulic components have been warmed up. If hot oil under high pressure runs through cold components the thermal shock can cause excessive wear and/or damage.

Determine location of roads, waterways and boundaries.

Before work begins identify additional hazards.

2.15

Controls and Operation

CLEAR CUT HARVESTING

FELLING

Tigercat TH570 Harvesting Head THE FELLING PROCESS The direction of fall is determined by the position of the head on the tree. The tree should fall in a direct line with the hanging bracket.

Position the head on the tree as low as possible while gaining the correct felling angle. This requires the head to be fully opened, both delimber and drive wheels in the tilt up position, and close the delimber and drive wheels once the selected tree is positioned in the opening.

A slight amount of pressure is then applied to the tree to ensure the saw will not jam as the tree is being cut and also assist with tree fall direction.

When the saw is activated the “Head Close” circuits will operate to ensure the tree does not move within the head while cutting is taking place. A visual indication of the cutting taking place is the chips exiting the saw box area. Keep the saw activated until the tree is ready to be dropped. Stop the saw, which automatically retracts, and apply force to the tree in the direction of fall.

The felling stage in clear cut harvesting influences the whole operation.

The felling direction and log presentation for extraction requires careful attention in order to reduce breakage and to be able to present a well delimbed stem for quick extraction or further processing.

To reduce breakage and provide a larger working radius it is preferable to fall trees against standing trees to cushion the fall and reduce the amount of under growth around the base of trees to be felled. This is achieved by falling the tree just off center to a standing tree preventing the falling tree from becoming “hung up”.

When felling, tree control is reduced if the head is at full reach. Optimum felling is achieved using the head as close as possible to approximately 3/4 of maximum reach. During these manoeuvres the machine chassis/ undercarriage should remain stationary at all times.

Should the machine chassis/undercarriage become unstable a reduction in reach should be applied immediately. Ensure the tracks are on a firm footing at all times, avoiding locating one or both tracks on stumps which could allow the machine to move unexpectedly during manoeuvres.

Positioning of the machine chassis/undercarriage will determine the working envelope. Higher production is achieved through maximum ground coverage with minimal track movement. This also reduces environmental impact.

It is preferable an operator has had manual falling experience, which allows a better understanding of felling techniques.

2.16

Tigercat TH570 Harvesting Head

Controls and Operation

DELIMBING

FALLING AND DELIMBING

At this point the tree is ready to be delimbed which involves slewing the base and driving the stem through the head while obtaining the correct direction of the butt.

Once the butt has been positioned the remainder of the tree can be delimbed by using the momentum of the base to assist the delimbing effort of the head.

To improve delimbing it is beneficial to feed the tree through while falling, allowing the weight of the tree to assist with the delimbing operation.

While the tree is falling, the drive wheels can be activated to allow the tree to pass through the head and delimb. Once the drive wheels are activated, the knife arms and feed wheel arms will automatically go into proportional clamp mode allowing the tree to pass through the head.

Ensure the head is kept to a minimum height in this operation to reduce the impact on the head from the falling tree.

To improve delimbing performance slew into the feed direction.

WARNING Due to variations in tree weight, the operator must be aware of the machine manufacturers specifications in regard to the ability of the machine to safely handle the tree being processed.

Care must be exercised when swinging stems around not to allow contact with the operator’s structure and be aware of tail swing which could damage other trees or stems.

• Ensure the delimbing knives are kept sharp and in form to reduce the effort required to remove limbs.

• The delimbing procedure is about balance and stem control, which when perfected gives excellent results and increases production.

• Do NOT feed the stem through the head while the stem is facing the operator’s structure.

It is recommended to delimb the stem with head just high enough to position the butt and clear objects. Operating the head too high will result in loss of control of the stem and also stem breakage.

2.17

Controls and Operation

THINNING TECHNIQUES Falling in thinning requires the harvester to be placed approximately 2 meters up the tree and then driven down the stem. This allows the back knives to provide a clear area for the harvester to grip when felling.

In order to gain the maximum merchantable volume and reduce bark damage to remaining trees, different methods are used, cut to length or full length, within the stand.

Tigercat TH570 Harvesting Head FULL TREE THINNING Again the procedure is similar to the above.

This system is used in conjunction with skidding extraction.

The path way is harvested in the same manner at the same spacing.

CUT TO LENGTH AT THE STUMP A path of stems approximately 4 meters wide is felled to allow access to both the harvester and the forwarder.

While this path is being harvested stems both sides of the path are harvested and processed.

More care is required when felling to correctly position the stem allowing processing without damage to standing stems due to the longer lengths being handled.

Stems are stacked either side ready to be removed by the forwarder.

• Decide where to stack the stems.

Fell the tree on the left and process it to the left or right.

Process the stems over the path and lay the stems on the opposite side. This method results in the harvesting slash being left on the path, thus providing a load bearing surface for both harvester and forwarder and a clean area for the stacks.

The major differences being the direction the processed stems are stock piled allowing extraction with minimal damage. It is not always possible to process over the path way, so harvesting slash is distributed over the complete swath.

Stems need to be processed and piled with the butts placed outwards providing easy access for extraction.

SELECT THINNING Select thinning depends on the finished crop stocking levels and area available to manoeuvre a machine between trees.

This method also requires a reduction in paths cut from a block, while still providing access for extraction.

With this system trees can be felled consecutively left and right to reduce the amount of machine movement, ensuring stacks are positioned so that the forwarder can easily load.

When stacking use colour marking and separate piles to identify grades which will assist the loading by the forwarder.

2.18

Tigercat TH570 Harvesting Head

CUTTING

GENERAL

Trees with a heavy forward lean can be fallen by placing multiple front cuts to create a larger area to compress while back cutting.

Larger trees should be released once the tree is falling.

This will avoid harvester damage.

Tops of hills and uneven ground can also cause the tree to swing up causing the machine to lift or harvester damage.

Releasing trees as they are falling into another standing tree can sometimes allow the tree to roll off.

If the fallen tree is hung up in another be careful when pulling it down. Watch that the holding tree is not being pulled in same direction. If so, pushing the tree will release the tree away from machine.

USING THE MAIN SAW UNIT Prior to using the chainsaw keep in mind -

Controls and Operation A side tear along the tree may stop the chainsaw from returning if it is not cut on the downward pass. The cut should be made past this tear. Stems should be supported when cutting, as this will avoid splitting.

A small amount of upward lift may be required as the chainsaw completes the cut. This will keep the cut open and avoid chain stall.

Care should be taken that the end of the bar does not cut into the ground when completing a cut. The chainsaw may also cut into another log damaging the log or if the harvester head is moving, may result in damage to the bar and chain.

USING THE TOPPING SAW UNIT (IF EQUIPPED) The topping saw is designed for cutting small diameter tops off trees. The tip of the chainsaw can be pinched if larger diameters are attempted. The topping saw chain can be derailed if branches or the end of the log is under load. It is advised that the topping saw bar be visible when cutting.

• View of the chainsaw bar if possible.

• The head will fall over when saw is activated.

• Protection of boom hydraulics and cab.

• How the tree is positioned for delimbing.

While cutting, push in the felling direction avoiding upward pressure. As the cutting unit completes the cut the saw will increase in speed and the bark chips maybe visible.

Once the cut is completed, release the saw button and the saw will return automatically.

When falling it is possible to jam the saw. Stop the activation of the saw and slowly lift the head supporting the weight of the tree. The lifting distance should be just enough to release the saw.

Check that the saw has returned by the saw home indicator before moving the tree too far.

Ensure the tree is clamped before the chainsaw is activated. A loose tree may move after the chainsaw begins the cut, this may derail the chain or stop the chainsaw from cutting.

2.19

Controls and Operation

Tigercat TH570 Harvesting Head

PROCESSING

GENERAL

• When working on confined landings ensure safety procedures and practices are in place and adhered too.

• DO NOT process toward the cab.

Once the tree has been delimbed it is ready to be crosscut into desired lengths.

Depending on log size when cross cutting it will be necessary to support the large end.

If a multiple of log grades is being processed it is necessary to ensure planning has taken place to ensure placement of various grades for easy identification during extraction operations.

MEASURING Inspect butt of tree and recut if needed.

When using the find end function, length accuracy will be poor for the following reasons: • Tree is crooked • The butt is not cut square • Sensor is dirty • Tree is too small • Sensor gets a false signal from bark or debris • Sensor gets reflections if the head is too close to the ground or other objects For best results use the saw to cut the butt square if accuracy is critical.

Avoid reversing when measuring; returning to the end of log and starting again will give more accurate length measuring.

Observing of the diameter readout and the length controller is essential before activating the chainsaw.

Calibration checks should be carried out at regular intervals if measuring equipment is being used.

2.20

Tigercat TH570 Harvesting Head

Controls and Operation

SPECIAL TECHNIQUES

In some cases several quarter cuts will prevent the tree snapping off too soon. This method is used on large butt flares, heavy leaners, badly swept butts, multi leaders, and any other situation the operator requires more control in the felling procedure to prevent damaging the tree or machine.

In instances where crutched trees, multi leaders and other abnormalities are encountered during falling, delimbing and processing, it may be necessary to use special techniques to be able to safely handle stems, with minimal damage to the machine

FALLING MULTILEADERS

USE OF DOUBLE CUTS

Crutched trees can be cut either at a point where both separate, or if one side is of small diameter it can be lifted until the crutch splits.

Double cuts allow the tree to fall freely and minimises butt damage. It is recommended that larger diameter trees be double cut to prevent bar damage.

Crutched trees at the base may need to be fallen separately if the split line is close to the ground.

Two cuts, front (or compression) cut and then a back (or release) cut are advised for larger trees. Using the two cut method means the top or tip of the cutting unit is not travelling over the direction of fall, which can cause damage if the tree moves forward and down.

Position the harvester to the front or the desired direction of fall of the tree. Make the front cut with no side or upward pressure. The cut should finish when the cut is square with the direction of fall. The back cut should be higher than the front cut, this will allow the tree to fall to the front cut level and avoid splitting wood towards the cutting unit. According to the lean and size of tree, a slight side and upward pressure should be applied to the tree as it being cut.

1

The aligning of the two cuts is important as there may be holding wood left on either side, which may cause damage to the saw unit if they are not parallel. Over cutting the back cut with the front cut can also stop the cutting unit from returning if the tree begins to fall.

QUARTER CUTTING This method is used on various occasions to gain better control when felling. Use a saw cut placed at the base of the tree in the direction of fall approximately quarter of the diameter into the tree. The head is then moved to the back of the tree ready for falling.

Carefully assess the situation and identify whether the tree is sound at the base in which case the possibility of falling complete could be considered.

If signs of rot (1) exist it identifies the need to remove each leader individually. This is done in a conventional manner except at a greater height.

WARNING

WARNING

Do not over cut the tree. Always work on one tree at the time and do not leave trees quarter cut.

Ensure the back cut is placed higher in the tree than the quarter cut - approximately quarter of the tree diameter.

When placing these cuts ensure both cuts are parallel to ensure a hinge affect is achieved otherwise loss of control will result.

Caution must be exercised to ensure leaders do not break away unexpectedly. When cutting leaders, ensure that the saw is not pinched between leaders.

FALLING ON HILLSIDES Falling trees on hillsides may expose the saw to dirt and debris on the uphill side of trees.

When falling on hilly terrain ensure the harvester is positioned correctly and not allowing the bar tip to enter the ground on the uphill side of the tree.

2.21

Controls and Operation

Tigercat TH570 Harvesting Head

PARKING THE HEAD The harvesting head can be parked in two positions: upright or tilted down. Refer to PARKING THE HEAD in SECTION 1.

2.22

Tigercat TH570 Harvesting Head SECTION 3 - LUBRICATION AND MAINTENANCE Read and understand the entire contents of this manual, and all manuals for any attachments or accessories associated with this equipment, prior to operating or servicing.

CONTENTS - SECTION 3

ISSUE 2.2, NOVEMBER 2016

A

APPROVED HYDRAULIC OILS................................................................................................................................ 3.5

C

CHAIN OIL................................................................................................................................................................... 3.5 COMMERCIAL WOOD– WEIGHTS......................................................................................................................... 3.12

F

FIRE PREVENTION................................................................................................................................................... 3.2

L

LUBRICATION SCHEDULE....................................................................................................................................... 3.6

N

NEW MACHINE MAINTENANCE FIRST 125 HOUR INSPECTION REPORT........................................................................................................... 3.2 INITIAL PRE-DELIVERY INSPECTION................................................................................................................ 3.2 TIGHTENING POINTS............................................................................................................................................ 3.2

P

PREVENTIVE MAINTENANCE SCHEDULE........................................................................................................... 3.2

S

SCHEDULED MAINTENANCE 8 HOURS..................................................................................................................................................................

24 HOURS................................................................................................................................................................

125 HOURS..............................................................................................................................................................

250 HOURS..............................................................................................................................................................

500 HOURS..............................................................................................................................................................

1000 HOURS............................................................................................................................................................

3.3 3.3 3.3 3.4 3.4 3.4

T

TORQUE CHART, GENERAL.................................................................................................................................. 3.11 TORQUE, FLUID CONNECTIONS.......................................................................................................... 3.8, 3.9, 3.10

W

WEIGHTS OF COMMERCIAL WOOD.................................................................................................................... 3.12

Lubrication and Maintenance

Tigercat TH570 Harvesting Head

PREVENTIVE MAINTENANCE SCHEDULE

FIRE PREVENTION

NEW MACHINE MAINTENANCE

Fire can result in a machine loss which can be financially devastating.

INITIAL PRE-DELIVERY INSPECTION Perform the initial pre-delivery inspection using Tigercat form numbers 5343: PDI and 125 hour inspection report.

FIRST 125 HOUR INSPECTION AND SERVICE REPORT With the owner’s mechanic present, perform an inspection and service according to the Tigercat form numbers 5343: PDI and 125 hour inspection report.

This must be completed within the first 125 hour time frame.

IMPORTANT! To qualify for continued warranty, this report must be completed and returned to Tigercat Industries Inc. Warranty department.

• Clean around filler caps before checking or adding fluids.

1. Pine needles and bark when allowed to accumulate, form a fuel source that when ignited is extremely difficult to extinguish. A thorough program of regular cleaning and washing will reduce the possibility of a fire starting. In the event a fire does start, the regular cleaning program will improve the chances of successfully extinguishing a fire.

2. Pay close attention to wiring and plumbing routing during maintenance, ensure that ALL wiring harnesses or hydraulic hoses are properly restrained and clamped to prevent damage from chaffing.

3. In case of fire lower the boom system to the ground and shut off the engine before discharging the fire suppression system.

Also refer to FIRE PREVENTION in SECTION 1 of THIS MANUAL for additional information.

• Clean around hydraulic fittings before breaking connection. Plug or cap immediately.

• Clean up all spills immediately.

• Always use clean oil and containers.

• Drain dirty oil while still warm.

• Do not exceed recommended fluid levels.

• Always have a fire extinguisher at hand.

TIGHTENING POINTS All hydraulic connections Hose clamps All cylinder and boom pin retainers Check rotator bearing bolt torque Any other loose nut, bolt or fitting

3.2

Tigercat TH570 Harvesting Head

Lubrication and Maintenance

SCHEDULED MAINTENANCE

• Tilt cylinders; 4 fittings – purge

FREQUENTLY

• Link and rotator; 6 fittings - NOTE: Rotate head 45° and grease till purged. Repeat until rotator is greased at all points along path.

• Check saw bar, chain and sprocket for wear, damage, sharpness of chain, proper tension, integrity of mounting hardware etc. Replace saw bar, chain and or sprocket as necessary. Repair or replace any damaged saw component mounts or hardware.

• Lubricate hose swivel; 3 fittings - 1 shot each • Floating front knife option; 4 fittings - purge • Manually extend saw bar and give 4 shots each at 0, 30, 60, and 90 degree.

• Check chain lubrication oil level. Refill as necessary.

EVERY 40 HOURS WEEKLY

• Clean the harvesting head. Remove all debris, dirt, ice, packed snow etc.

PERFORM

EVERY 8 HOURS

• 8 HOUR maintenance CHECK

• Fill chain lubrication reservoir. Clean the area around the reservoir cap of all debris and dirt and remove the cap. Fill completely with chain oil per the recommended chain oil chart.

• Knife arm and wheel arm pivot pins and retaining bolts.

• Condition of drive wheel, hub nuts and mounting bolts.

CHECK • For loose nuts, bolts and fittings and fix as required.

• Inspect the frame and arms for cracks or excessive wear. Replace components and sharpen knives as required.

• Saw chain condition. Inspect saw chain for excessive wear, cracking, or broken teeth. Replace chain if necessary.

EVERY 125 HOURS:

• Knife arms for excessive wear, cracking, or broken parts. Repair or replace components if necessary.

PERFORM • 8 HOUR maintenance

• Conduct visual inspection of the measuring equipment and sensors. Ensure they are clean, clear and free of obstacles.

• 40 HOUR maintenance CHECK

• Conduct overall visual inspection. Check valves, motors, cylinders, and all hoses for leaks or wear.

Tighten or replace fittings and hoses as necessary.

• Torque tightening points as per new machine maintenance

CLEAN

VISUALLY CHECK FOR DAMAGE TO • Main frame.

• Remove potentially damaging limbs or sticks.

• Tilt frame.

LUBRICATE ALL GREASE FITTINGS

• Make repairs immediately

• Knife arms; 6 fittings – purge

VISUALLY INSPECT FOR

• Knife arm cylinders; 6 fittings – purge

• Signs of cracks beginning in main and tilt frames.

Failure to properly repair cracks in structures in a timely manner can result in component failure and costly repairs which are not covered under warranty.

• Wheel arm pivots; 4 fittings – purge • Wheel arm cylinders; 4 fittings – purge • Wheel arm motor Seals; 2 fittings – 4 shots • Measuring wheel pivot; 2 fittings – purge • Saw; swivel bearing 1 fitting – 4 shots * • Saw; feed out rack 1 fitting – 4 shots * • Tilt bearings; 4 fittings – purge 3.3

Lubrication and Maintenance

Tigercat TH570 Harvesting Head

EVERY 250 HOURS:

EVERY 2000 HOURS:

PERFORM

PERFORM

• 8 HOUR maintenance

• 8 HOUR maintenance

• 40 HOUR maintenance

• 40 HOUR maintenance

• 125 HOUR maintenance

• 125 HOUR maintenance

CHECK

• 250 HOUR maintenance

• Control valve mounting bolts and electrical box bracket mounting bolts.

• 500 HOUR maintenance • 1000 HOUR maintenance

• Valve plate and electrical box isolation bushings and replace if deteriorated.

• Turn feed rollers to distribute wear evenly.

• Replace tilt frame stop pads (processing applications).

• The condition of the tilt frame pins and bushes.

• Drive wheel and arm and knife arm pivot pin and retaining bolts.

• Main saw assembly mounting bolts and saw motor mounting bolts.

• Recharge length measuring and wheel arm accumulator.

SEASONAL: • Change bar chain oil to recommended seasonal oil.

• Remove cover and check rotator pinion mounting bolt and visually check gear faces.

EVERY 500 HOURS: PERFORM • 8 HOUR maintenance • 40 HOUR maintenance • 125 HOUR maintenance • 250 HOUR maintenance • Replace feed wheel arm stop pads

EVERY 1000 HOURS: PERFORM • 8 HOUR maintenance • 40 HOUR maintenance • 125 HOUR maintenance • 250 HOUR maintenance • 500 HOUR maintenance • Check rotator assembly to bearing mounting bolts and rotator motor mounting bolts.

• Replace tilt frame stop pads (harvesting applications).

3.4

Tigercat TH570 Harvesting Head

Lubrication and Maintenance

APPROVED HYDRAULIC OILS

Recommended Chain Oil Viscosity

Supplier

Brand Name

Pour Point

Flash Point

200 cSt @ 40°C 60 cSt @ 40°C

ESSO ESSO

HD Chain Oil (Summer) Light Chain Oil (Winter)

Minus 15°C max Minus 33°C max

260°C 200°C

Mobil Mobilux EP - 2

BP EPEnegrease EP - 2

Petro Canada Supreme EP - 2

Recommended Lubricants Esso Beacon EP - 2

CHAIN OIL.XL

Shell Alvania EP - 2

3.5

Lubrication and Maintenance

Tigercat TH570 Harvesting Head

1

2 3

3 4

7

5 6

8 9

10 570-15

Tigercat® Model TH570 HARVESTING HEAD LUBRICATION AND MAINTENANCE SCHEDULE

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20

LINK ROTATOR BEARING & PINION TILT FRAME STOP PADS ** L.H. KNIFE ARM & CYLINDER MEASURING WHEEL ARM MEASURING WHEEL HUB R.H. KNIFE ARM & CYLINDER CHAIN OIL WHEEL ARM STOP PADS

BACK KNIFE ARM & CYLINDER HOSE SWIVEL TILT FRAME CYLINDER PINS TILT FRAME PIVOT PINS R.H. FEED WHEEL ARM & CYLINDER L.H. FEED WHEEL MOTOR SEAL L.H. FEED WHEEL ARM & CYLINDER MAIN SAW FEED OUT RACK MAIN SAW BEARING R.H. FEED WHEEL MOTOR SEAL FLOATING FRONT KNIFE (OPTION)

REMARKS/LUBRICANT

QTY

USG

LUB LUB

3 4

PURGE* PURGE*

4 2 1 4 1

PURGE* PURGE* 1 SHOT* PURGE* See recommended chain oil in this section

4 3 4 4 4 1 4 1 1 1 4

PURGE* 1 SHOT* EACH FITTING PURGE* PURGE* PURGE* 4 SHOTS* PURGE* 4 SHOTS* 4 SHOTS* 4 SHOTS* PURGE*

REP REP LUB LUB LUB LUB CHK

14

3.7

REP LUB LUB LUB LUB LUB LUB LUB LUB LUB LUB LUB

*LITHIUM BASED EP2 GREASE CONTAINING 5% MOLYBDENUM DISULFIDE † Use of filters other than genuine Tigercat replacement filters is not recommended. ** Replace at 1000 hours in "harvesting" application, and 2000 hours in "processing" application

TH570 LUBECHART.XLS

LITRE

3000 

2000 

1000 

500 

250 

125 

DESCRIPTION

8

ITEM NO.

REFER TO Tigercat OPERATOR'S MANUAL FOR FURTHER INFORMATION SERVICE EVERY CAPACITY

3.6

LEGEND: CHK - CHECK DRN - DRAIN D/R - DRAIN AND REFILL LUB - LUBRICATE REP - REPLACE

Tigercat TH570 Harvesting Head

Lubrication and Maintenance

11

12

12

13

15

17

14

10

18

16

570-24

3

13

20 19

9 570-37 570-13

3.7

Lubrication and Maintenance

Tigercat TH570 Harvesting Head

Parker

Assembly Torque Torque

The four-bolt port is simply a circular opening (flow passage) surrounded by four tapped holes in a certain pattern for acceptance of the flange clamping bolts. The flat surface of the port compresses the O-ring contained in the groove in the flange head when the clamp bolts are torqued. In some instances, the groove is in the port and not in the flange head. The bolts, through the clamp halves, clamp down the flange head onto the flat surface of the port compressing and trapping the O-ring in the groove and leaving no gap for it to extrude under pressure. The hydraulic pressure is thus sealed by the compressed O-ring as long as the bolts are tightened enough to maintain solid metal to metal contact between the flange head at the outside diameter of the O-ring and the top of the port.

A B C

D E F

Flange Port Assembly The steps to properly assemble the flange port clamping bolts are:

FLANGE.JPG

A B C D E F

4-Bolt Split Flange Components

Washers Bolts Flange Clamp Flange Head O-Ring Tapped Holes

1. Make sure sealing surfaces are free of burrs, nicks, scratches or any foreign particles.

2. Lubricate the o-ring.

3. Position flange and clamp halves.

• The 4-Bolt Split Flange consists of four main components:

4. Place lock washers on bolts and insert through clamp halves.

• A body (flange head)

5. Hand tighten bolts.

• An O-ring • One captive or two split flange clamps • Four bolts and washers Dash Size

Flange Size

Inch Bolt (J518)

Torque lbf-ft

Metric Bolt (ISO 6162)

Torque Nm

8 12 16 20 24 32 40 48 56 64 80

1/2 3/4 1 1-1/4 1-1/2 2 2-1/2 3 3-1/2 4 5

5/16-18 3/8-16 3/8-16 7/16-14 1/2-13 1/2-13 1/2-13 5/8-11 5/8-11 5/8-11 5/8-11

17 +/- 2 25 +/- 3.5 31 +/- 4.5 41 +/- 5 52 +/- 6 60 +/- 6 85 +/- 9 144 +/- 15 125 +/- 8 125 +/- 8 125 +/- 8

M8 M10 M10 M12 M12 M12 M12 M16 M16 M16 M16

25 49 49 85 85 135 95 220 220 220 220

FLANGE2.JPG

A

Flange Bolt Tightening Sequence

6. Torque bolts in diagonal sequence in small increments to the appropriate torque level listed in Table T6 or Table T7 on this page.

Table T6– Code 61 Flange Recommended Bolt Torque

NOTE: Does not meet ISO 6162 specification.

Dash Size

Flange Size

Inch Bolt (J518)

Torque lbf-ft

Metric Bolt (ISO 6162)

Torque N-m

8 12 16 20 24 32

1/2 3/4 1 1 1/4 1 1/2 2

5/16-18 3/8-16 7/16-14 1/2-13 5/8-11 3/4-10

17 +/- 2 30 +/- 4.5 46 +/- 4.5 69 +/- 6 125 +/- 8 208 +/- 20

M8 M10 M12 M14 M16 M20

25 49 85 135 210 425

Table T7– Code 62 Flange Recommended Bolt Torque

NOTE: Does not meet ISO 6162 specification.

3.8

Tigercat TH570 Harvesting Head

Lubrication and Maintenance

Parker

Assembly Torque JIC 37 Degree Flare

SAE Dash Size -2 -3 -4 -5 -6 -8 -10 -12 -14 -16 -20 -24 -32 -40

Thread Size

NPTF

Tube Connection Swivel or Hose Connection FFWR FFWR

5/16-24 3/8-24 7/16-20 1/2-20 9/16-18 3/4-16 7/8-14 1 1/16-12 1 3/16-12 1 5/16-12 1 5/8-12 1 7/8-12 2 1/2-12 3-12

NA NA 2 2 1 1/2 1 1/2 1 1/2 1 1/4 1 1 1 1 1 1

SAE Dash Size

NA NA 2 2 1 1/4 1 1 1 1 1 1 1 1 1

-2 -3 -4 -5 -6 -8 -10 -12 -14 -16 -20 -24 -32 -40

F.F.W.R : Flats From Wrench Resistance All values are for Steel, Stainless Steel and Brass

1/8-27 NA 1/4-18 NA 3/8-18 1/2-14 7/8-14 3/4-14 NA 1-11 1/2 1 1/4-11 1/2 1 1/2-11 1/2 2-11 1/2 NA

-2 -3 -4 -5 -6 -8 -10 -12 -14 -16 -20 -24 -32 -40

Thread Size NA NA 9/16-18 NA 11/16-16 13/16-16 1-14 1 3/16-12 NA 1 7/16-12 1 11/16-12 2-12 NA NA

2-3 NA 2-3 NA 2-3 2-3 NA 2-3 NA 1.5-2.5 1.5-2.5 1.5-2.5 1.5-2.5 NA

BSPT

Tube Connection Swivel or Hose Connection FFWR FFWR NA NA 1/4 TO 1/2 NA 1/4 TO 1/2 1/4 TO 1/2 1/4 TO 1/2 1/4 TO 1/2 NA 1/4 TO 1/2 1/4 TO 1/2 1/4 TO 1/2 NA NA

2-3 NA 2-3 NA 2-3 2-3 NA 2-3 NA 1.5-2.5 1.5-2.5 1.5-2.5 1.5-2.5 NA

T.F.F.T. : Turns from finger tight All pipe values are for Steel, Stainless Steel and Brass

O'ring Face Seal / Seal-Lok SAE Dash Size

Tube Connection Swivel or Hose Connection TFFT TFFT

Thread Size

SAE Dash Size

NA NA 1/2 TO 3/4 NA 1/2 TO 3/4 1/2 TO 3/4 1/2 TO 3/4 1/3 TO 1/2 NA 1/3 TO 1/2 1/3 TO 1/2 1/3 TO 1/2 NA NA

-2 -3 -4 -5 -6 -8 -10 -12 -14 -16 -20 -24 -32 -40

F.F.W.R : Flats From Wrench Resistance All values are for Steel, Stainless Steel and Brass

Thread Size

Tube Connection Swivel or Hose Connection TFFT TFFT

1/8-28 NA 1/4-19 NA 3/8-19 1/2-14 NA 3/4-14 NA 1-11 1 1/4-11 1 1/2-11 2-11 NA

2-3 NA 2-3 NA 2-3 2-3 NA 2-3 NA 1.5-2.5 1.5-2.5 1.5-2.5 1.5-2.5 NA

2-3 NA 2-3 NA 2-3 2-3 NA 2-3 NA 1.5-2.5 1.5-2.5 1.5-2.5 1.5-2.5 NA

T.F.F.T. : Turns from finger tight All pipe values are for Steel, Stainless Steel and Brass

SAE J1926 Straight Thread Port Assembly Torques ASSEMBLY TORQUE = 10 % -0 SAE DASH SIZE

2 3 4 5 6 8 10 12 14 16 20 24 32

THREAD SIZE

5/16-24 3/8-24 7/16-20 1/2-20 9/16-18 3/4-16 7/8-14 1 1/16-12 1 3/16-12 1 5/16-12 1 5/8-12 1 7/8-12 2 1/2-12

SEAL-LOK lbf-ft (lbf-in) (310) (310) (310) (360) (420) 60 100 135 175 200 250 305 375

Nm 20 20 20 40 46 80 135 185 235 270 340 415 510

TRIPLE-LOK FERULOK PIPE FITTINGS lbf-ft Nm (lbf-in) (85) 10 (155) 18 (260) 29 (280) 32 (350) 40 (620) 70 85 115 135 183 175 237 200 271 250 339 305 414 375 509

PLUGS

ADJUSTABLE

NON-ADJUSTABLE

SEAL-LOK lbf-ft (lbf-in) (310) (310) (310) (360) (420) 60 100 135 175 200 250 305 375

3.9

Nm 20 20 20 40 46 80 135 185 235 270 340 415 510

TRIPLE-LOK FERULOK PIPE FITTINGS lbf-ft Nm (lbf-in) (60) 7 (100) 11 (180) 20 (250) 28 (350) 40 (620) 70 85 115 135 183 175 237 200 271 250 339 305 414 375 509

HOLLOW HEX

HEX HEAD

HP5ON-S

P5ON-S

lbf-ft (lbf-in) (30) (55) (120) (170) (410) 60 100 135 175 200 250 305 375

Nm 3.5 6 13.5 19 46 80 135 185 235 270 340 415 510

lbf-ft (lbf-in) (85) (155) (260) (280) (350) (620) 85 135 175 200 250 305 375

Nm 10 18 29 32 40 70 115 183 237 271 339 414 509

Lubrication and Maintenance

Tigercat TH570 Harvesting Head

EATON Aeroquip

Assembly Torque

Recommended Parallel Connection Assembly torque

Eaton recommends that a Torque wrench be used to assure proper fitting assembly of these connections.

Straight Thread O-Ring Boss Low Pressure with 37º (SAEJ514)

Straight Thread O-Ring Boss High Pressure with ORS (J1453)

Thread Size (inches) 3/8-24 7/16-20 1/2-20 9/16-18 3/4-16 7/8-14 1 1/16-12 1 3/16-12 1 5/16-12 1 5/8-12 1 7/8-12 2 1/2-12

Dash Size -03 -04 -05 -06 -08 -10 -12 -14 -16 -20 -24 -32

The values listed are for steel connections. Contact Teaton for torque values for other materials.

Jam Nut or Jam Nut or Straight Straight Fitting Torque Fitting Torque lb.-ft.

Newton Meters 8-9 12-13 13-15 18-20 14-15 19-21 23-24 32-33 40-43 55-57 43-48 59-64 68-75 93-101 83-90 113-122 112-123 152-166 146-161 198-218 154-170 209-230 218-240 296-325

ORS

Dash Size -04 -06 -08 -10 -12 -16 -20 -24

Dash Size -03 -04 -05 -06 -08 -10 -12 -14 -16 -20 -24

Thread Size (inches) 3/8-24 7/16-20 1/2-20 9/16-18 3/4-16 7/8-14 1 1/16-12 1 3/16-12 1 5/16-12 1 5/8-12 1 7/8-12

Jam Nut or Jam Nut or Straight Straight Fitting Torque Fitting Torque lb.-ft.

Newton Meters 8-10 11-16 14-16 20-22 18-20 24-27 24-26 33-35 50-60 68-78 72-80 98-110 125-135 170-183 160-180 215-245 200-220 270-300 210-280 285-380 270-360 370-490

SAE 37º (JIC) Thread Size (inches) 9/16-18 11/16-20 13/16-16 1-14 1 3/16-12 1 7/16-12 1 11/16-12 2-12

Swivel Nut Torque lb.-ft.

10-12 18-20 32-35 46-50 65-70 92-100 125-140 150-165

Swivel Nut Torque Newton Meters 14-16 24-27 43-47 62-68 88-95 125-136 170-190 204-224

Metric Thread Size mm M10x1 M12x1.5 M14x1.5 M16x1.5 M18x1.5 M20x1.5 M22x1.5 M26x1.5 M27x2 M33x2 M42x2 M48x2

Dash Size -04 -05 -06 -08 -10 -12 -16 -20 -24 -32

Thread Size (inches) 7/16-20 1/2-20 9/16-18 3/4-16 7/8-14 1 1/16-12 1 5/16-12 1 5/8-12 1 7/8-12 2 1/2-12

Swivel Nut Torque lb.-ft.

11-12 15-16 18-20 38-42 57-62 79-87 108-113 127-133 158-167 245-258

Swivel Nut Torque Newton Meters 15-16 20-22 24-28 52-58 77-85 108-119 148-154 173-182 216-227 334-352

BSPP Straight Adapter or Locknut Torque lb.-ft.

Newton Meters 13-15 18-20 15-19 20-25 19-23 25-30 33-40 45-55 37-44 50-60 52-66 70-90 55-70 75-95 81-96 110-130 96-111 130-150 162-184 220-250 170-192 230-260 258-347 350-470

Nominal Thread Size Straight Adapter or Locknut Torque inches** lb.-ft.

Newton Meters G1/8-28 13-15 18-20 G1/4-19 19-23 25-30 G3/8-19 33-40 45-55 G1/2-14 55-70 75-95 G3/4-14 103-118 140-160 G1-11 162-184 220-250 G1 1/4-11 170-192 230-260 G1 1/2-11 258-347 350-470 ** "G" denotes parallel threads, other than ISO 6149 (Port connection only)

Eaton Aeroquip Fluid Conveyance Products A-HOOV-MC001-E January 2005

3.10

Tigercat TH570 Harvesting Head

Lubrication and Maintenance

GENERAL TORQUE SPECIFICATIONS

The torque values listed below are for general use only.

DO NOT use these values if a different torque value or tightening procedure is shown for a specific application.

IMPERIAL GRADE 8 BOLTS

GRADE 5 BOLTS

IMPERIAL BOLT TORQUE SPECIFICATIONS GRADE 8 BOLTS GRADE 5 BOLTS LUBRICATED lbf-ft Nm 8 - 10 11 - 13 20 - 28 27 - 38 33 - 36 45 - 49 52 - 57 71 - 77 80 - 88 109 - 119 115 - 127 156 - 172 159 - 175 216 - 237 282 - 310 393 - 420 455 - 501 617 - 679 682 - 750 925 - 1016 966 - 1062 1310 - 1441 1360 - 1496 1844 - 2027 LUBRICATED lbf-ft Nm 10 - 13 14 - 17 18 - 25 25 - 33 37 - 41 50 - 55 58 - 64 79 - 86 90 - 99 122 - 134 128 - 141 174 - 191 180 - 198 244 - 268 315 - 347 427 - 470 501 - 550 679 - 745 746 - 821 1012 - 1113 1083 - 1191 1469 - 1613 1509 - 1660 2046 - 2250 8.8

10.9

8.8

10.9

12.9

8.8

10.9

12.9

10

10

10

METRIC

10

DRY LUBRICATED COARSE THREAD lbf-ft Nm lbf-ft Nm 1/4" - 20 7- 8 10 - 11 8 - 10 11 - 13 5/16" - 18 14 - 18 19 - 24 10 - 15 13 - 20 3/8" - 16 31 - 34 42 - 46 23 - 25 31 - 34 7/16" - 14 49 - 54 66 - 73 37 - 41 50 - 55 1/2" - 13 75 - 83 102 - 112 57 - 63 77 - 85 9/16" - 12 109 - 120 148 - 162 82 - 90 111 - 122 5/8" - 11 150 - 165 204 - 223 113 - 124 152 - 168 3/4" - 10 266 - 293 360 - 397 200 - 220 271 - 298 7/8" - 9 394 - 433 535 - 586 296 - 326 402 - 441 1" - 8 591 - 649 802 - 879 443 - 489 601 - 663 1 1/8" - 7 794 - 873 1077 - 1183 596 - 656 808 - 889 1 1/4" - 7 1120 - 1232 1519 - 1670 840 - 924 1139 - 1252 FINE DRY LUBRICATED lbf-ft Nm lbf-ft Nm THREAD 1/4" - 28 9 - 10 12 - 13 9 - 10 12 - 13 5/16" - 24 17 - 22 23 - 29 16 - 20 21 - 27 3/8" - 24 35 - 39 48 - 53 26 - 29 35 - 39 7/16" - 20 55 - 61 75 - 83 41 - 45 56 - 61 1/2" - 20 85 - 94 116 - 127 64 - 70 87 - 95 9/16" - 18 121 - 133 164 - 180 91 - 100 124 - 135 5/8" - 18 170 - 187 231 - 253 128 - 141 174 - 191 3/4" - 16 297 - 327 403 - 443 223 - 245 303 - 332 7/8" - 14 434 - 477 589 - 646 326 - 359 442 - 486 1" - 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 12.9

10

12.9

12.9

12

12

DRY lbf-ft Nm 11 - 12 15 - 16 26 - 30 35 - 40 44 -48 60 - 65 70 - 77 95 - 104 106 - 117 144 - 158 153 - 168 208 - 228 212 - 233 288 - 316 376 - 414 510 - 561 606 - 667 822 - 904 909 - 1000 1233 - 1355 1288 - 1417 1746 - 1921 1817 - 1999 2464 - 2710 DRY lbf-ft Nm 13 - 14 18 - 19 23 - 28 31 - 38 49 - 54 67 - 73 78 - 86 106 - 116 120 - 132 163 - 179 171 - 188 232 - 255 240 - 264 326 - 358 420 - 462 570 - 626 668 - 735 906 - 996 995 - 1096 1359 - 1486 1445 - 1590 1960 - 2155 2012 - 2213 2728 - 2997

10

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

12

METRIC BOLT TORQUE SPECIFICATIONS CLASS 8.8

SIZE PITCH LUBRICATED mm Nm lbf-ft M6 1 8-9 6-7 M8 1.25 20 - 22 15 - 16 M10 1.5 39 - 43 29 - 32 M12 1.75 68 - 75 50 - 55 M14 2 109 - 120 80 - 89 M16 2 169 - 186 125 - 137 M18 2.5 234 - 257 172 - 190 M20 2.5 330 - 364 244 - 268 M22 2.5 451 - 496 332 - 366 M24 3 571 - 628 421 - 463 M27 3 837 - 921 618 - 679 M30 3.5 1135 - 1249 837 - 921 M33 3.5 1545 - 1699 1139 - 1253 M36 4 1985 - 2183 1464 - 1610

CLASS 10.9 LUBRICATED DRY Nm lbf-ft Nm lbf-ft Nm lbf-ft 11 - 12 8-9 11 - 12 8-9 15 - 17 11 - 12 26 - 29 19 - 21 27 - 30 20 - 22 36 - 40 27 - 30 52 - 57 38 - 42 54 - 60 40 - 44 72 - 79 53 - 59 91 - 100 67 - 74 94 - 104 70 - 77 126 - 138 93 - 102 145 - 160 107 - 118 151 - 166 111 - 122 201 - 221 148 - 163 226 - 248 166 - 183 234 - 257 173 - 190 312 - 343 230 - 253 312 - 343 230 - 253 324 - 356 239 - 262 431 - 474 318 - 350 441 - 485 325 - 357 457 - 503 337 - 371 610 - 670 450 - 495 601 - 661 443 - 487 623 - 686 460 - 506 831 - 914 613 - 674 761 - 838 562 - 618 790 - 869 583 - 641 1053 - 1159 777 - 855 1116 - 1228 823 - 906 1158 - 1274 854 - 940 1544 - 1699 1139 - 1253 1514 - 1665 1116 - 1228 1570 - 1727 1158 - 1274 2094 - 2303 1544 - 1699 2060 - 2266 1519 - 1671 2137 - 2351 1576 - 1734 2849 - 3134 2102 - 2312 2646 - 2911 1952 - 2147 2745 - 3020 2025 - 2227 3661 - 4027 2700 - 2970 DRY

3.11

CLASS 12.9 LUBRICATED DRY Nm lbf-ft Nm lbf-ft 13 - 14 10 - 11 18 - 19 13 - 14 32 - 35 24 - 26 43 - 47 31 - 35 63 - 70 47 - 51 84 - 93 62 - 68 110 - 121 81 - 90 147 - 162 109 - 119 176 - 194 130 - 143 235 - 259 173 - 191 274 - 301 202 - 222 365 - 401 269 - 296 378 - 416 279 - 307 504 - 554 372 - 409 534 - 588 394 - 433 712 - 784 525 - 578 728 - 801 537 - 591 971 - 1068 716 - 788 923 - 1016 681 - 749 1231 - 1354 908 - 999 1354 - 1489 998 - 1098 1805 - 1985 1331 - 1464 1835 - 2019 1354 - 1489 2447 - 2692 1805 - 1985 2498 - 2747 1842 - 2026 3330 - 3663 2456 - 2702 3208 - 3529 2366 - 2603 4278 - 4706 3155 - 3471

Lubrication and Maintenance

Tigercat TH570 Harvesting Head

WEIGHTS OF COMMERCIAL WOOD

Alder, Red

SPECIES

KG/M3 LB/FT3 737

769 Ash, White 689 Aspen, Quaking 817 Bald Cypress 673 Basswood, American 865 Beech, American 801 Birch, Paper 929 Birch, Yellow 577 Cedar, Alaska 721 Cedar, Incense 449 Cedar, Northern White 897 Cedar, Port-Orford 433 Cedar, Western Red 721 Cherry, Black 785 Cottonwood, Eastern 881 Douglas Fir, Coast 577 Douglas Fir, Inland North 865 Elm, American 449 Fir, Alpine 721 Fir, Balsam 481 Fir, Nobel 769 Fir, Red 577 Fir, Silver 753 Fir, White 721 Gum, Black 1121 Gum, Blue 801 Gum, Red 897 Gum, Tupelo 801 Hemlock, Eastern 657 Hemlock, Western 993 Hickory, Pecan 1009 Hickory, True 769 Larch, Western 929 Locust, Black 785 Magnolia, Cucumber NOTE: The values shown here are green weights.

46 48 43 51 42 54 50 58 36 45 28 36 57 45 49 55 36 54 28 45 30 48 36 47 45 70 50 56 50 41 62 63 48 58 49

SPECIES

Maple, Big Leaf Maple, Black Maple, Red Maple, Silver Maple, Sugar Oak, Black Oak, Chestnut Oak, Red Oak, Red, Swamp Oak, Swamp Chestnut Oak, White Oak, White, Swamp Pine, Jack Pine, Loblolly Pine, Lodgepole Pine, Long Leaf Pine, Norway, Red Pine, Short Leaf Pine, Slash Pine, Sugar Pine, Western Yellow Pine, White-Western Pine, White-Eastern Poplar, Yellow Redwood Spruce, Black Spruce, Engleman Spruce, Red Spruce, Sitka Spruce, White Sweetgum Sycamore, American Tamarack Walnut, Black Willow, Black

3.12

KG/M3 LB/FT3 753 865 801 721 897 1009 977 1009 1073 1041 993 1105 801 993 625 993 673 993 993 817 721 561 577 609 801 513 625 545 529 545 801 833 753 929 801

47 54 50 45 56 63 61 63 67 65 62 69 50 62 39 62 42 62 62 51 45 35 36 38 50 32 39 34 33 34 50 52 47 58 50

Tigercat TH570 Harvesting Head SECTION 4 – HYDRAULIC SYSTEM Read and understand the entire contents of this manual, and all manuals for any attachments or accessories associated with this equipment, prior to operating or servicing.

CONTENTS – SECTION 4

ISSUE 1.1, NOVEMBER 2016

A

ACCUMULATORS CHARGING............................................................................................................................................................. 4.14 FEED WHEEL......................................................................................................................................................... 4.13 MEASURING WHEEL............................................................................................................................................ 4.13 PRE-CHARGE PRESSURE.................................................................................................................................. 4.12

C

CYLINDERS............................................................................................................................................................... 4.22 CYLINDER CHECK VALVE................................................................................................................................... 4.23 CYLINDER IDENTIFICATION............................................................................................................................... 4.23 CYLINDER SEALS..............................................................................................................................4.24, 4.25, 4.26

H

HYDRAULIC COMPONENTS ACCUMULATORS.................................................................................................................................................. 4.12 COUNTERBALANCE MANIFOLD........................................................................................................................ 4.16 CROSSOVER RELIEF MANIFOLD...................................................................................................................... 4.16 CYLINDER CHECK VALVE................................................................................................................................... 4.23 CYLINDERS............................................................................................................................................................ 4.22 HOSE SWIVEL....................................................................................................................................................... 4.27 MAIN CONTROL VALVE........................................................................................................................................ 4.10 CONTROL VALVE FUNCTIONS.......................................................................................................................... 4.4 FEED REDUCERS AND SPOOL STOPS........................................................................................................... 4.7 PRESSURE REDUCING VALVES....................................................................................................................... 4.8 RELIEF VALVES................................................................................................................................................... 4.8 SOLENOID PILOT ORIFICE SIZE IDENTIFICATION....................................................................................... 4.9 SPLIT FLANGE BOLT TORQUE........................................................................................................................ 4.10 TEST PORTS........................................................................................................................................................ 4.6 TIE ROD TORQUE.............................................................................................................................................. 4.10 VALVE SOLENOIDS AND WIRE NUMBERS...................................................................................................... 4.5 MAIN SAW MANIFOLD.......................................................................................................................................... 4.11 MOTORS ROTATE............................................................................................................................................................... 4.16 SAW MOTOR....................................................................................................................................................... 4.18 RETURN LINE MANIFOLD AND CHECK VALVE................................................................................................ 4.19

P

PILOT CIRCUIT SCHEMATIC.................................................................................................................................. 4.35 PRESSURES AND SPEEDS.................................................................................................................................... 4.31 PRESSURE TESTS CARRIER SET-UP.................................................................................................................................................. 4.33 CONTROL VALVE QUICK REFERENCE............................................................................................................. 4.32 PILOT PRESSURE................................................................................................................................................ 4.34 TEST EQUIPMENT................................................................................................................................................ 4.30

Hydraulic System

Tigercat TH570 Harvesting Head

R

REMOVING THE SAW CHAINS............................................................................................................................... 4.30 ROTATE CIRCUIT PRESSURE AND FLOW ADJUSTMENT................................................................................. 4.16

S

SAW MOTOR INSTALLATION AND BLEEDING..................................................................................................... 4.18 MOTOR BREAK IN PROCEDURE....................................................................................................................... 4.18 SWIVEL CARTRIDGE SEAL KITS........................................................................................................................... 4.27 SWIVEL HOSE CONNECTIONS.............................................................................................................................. 4.27

T

TEST EQUIPMENT................................................................................................................................................... 4.30 TILT FRAME LOCK BOLTS...................................................................................................................................... 4.28

4.2

Tigercat TH570 Harvesting Head

Hydraulic System

HYDRAULIC SYSTEM COMPONENTS MAIN CONTROL VALVE The main control valve is mounted on the back of the harvesting head frame. The following head functions are controlled by the main control valve: 1. Feed motors 2. Feed wheel arms 3. Knife arms 4. Saw motor 5. Frame tilt 6. Measuring wheel

570-05 570-04

4.3

Hydraulic System

Tigercat TH570 Harvesting Head

MAIN CONTROL VALVE VALVE FUNCTIONS A. B. C. D.

Saw motor and saw bar pressure LH wheel arm motor - forward and reverse RH wheel arm motor - forward and reverse Tilt frame - up, down and lock. Main inlet and pilot pressure E. Push and rotate button to detent for normal operations. Push and rotate until button pops out for manual engagement of tilt float.

F. Back knife - open and close G. Wheel arms - open and close H. Front knives - open and close I. Measuring wheel, front and back knife proportional pressure control

E

B

C

D

F

G

H

A

I

570-05

4.4

Tigercat TH570 Harvesting Head

Hydraulic System

VALVE SOLENOIDS AND WIRE NUMBERS A. B. C. D. E. F. G. H. I.

J. K. L. M. N. O. P. Q. R.

View A Front knives open - wire #190 Front knives close - wire #187 Wheel arms open - wire #176 Wheel arms close - wire #177 Back knife open - wire #180 Back knife close - wire #179 RH wheel arm feed motor reverse - wire #185 RH wheel arm feed motor forward - wire #232

LH wheel arm feed motor reverse - wire #182 LH wheel arm feed motor forward - wire #181 Tilt lock - wire #174 Measuring wheel extend - wire #195 Pressure control back knife close - wire #165 Pressure control front knives close - wire #173 Tilt frame down - wire #175 Tilt frame up - wire #172 Saw motor on - wire #170

A

J K

H L

I

F

D

B

G

E

C M

P N Q O

R

TH570-009A TH570-009B

A

4.5

Hydraulic System

Tigercat TH570 Harvesting Head

TEST PORTS A. B. C. D. E. F. G.

Saw bar PRV Main pressure Load sense Pilot supply Tank pressure Measuring wheel PRV Case drain

A

B

C

D

F

G

570-05

4.6

E

Tigercat TH570 Harvesting Head

Hydraulic System

FEED REDUCERS AND SPOOL STOPS A. B. C. D. E. F. G. H. I. J. K. L.

Feed reducer - front knives open Feed reducer - front knives close Feed reducer - back knife open Feed reducer - back knife close Spool stop - front knives close Spool stop - back knife close Spool stop - front knives open Spool stop - back knife open RH feed motor forward LH feed motor forward RH feed motor reverse LH feed motor reverse

H J

G

I

D

L

K

TH570-009A

4.7

C

F

B

A

E

Hydraulic System

Tigercat TH570 Harvesting Head

RELIEF VALVES - NON ADJUSTABLE

PRESSURE REDUCING VALVES - ADJUSTABLE

A. B. C. D. E. F. G. H.

A. Pilot supply = 35 bar (507 psi) B. Measuring wheel = 48 bar (696 psi) C. Saw bar = 76 bar (1102 psi) (0.404" saw) 69 bar (1000 psi) (0.75" saw)

Main pressure = 350 bar (5076 psi) Pilot supply = 50 bar (725 psi) Back knife proportional = 10 bar (145 psi) bias Front knives proportional = 10 bar (145 psi) bias Measuring wheel = 80 bar (1160 psi) Tilt down = 160 bar (2320 psi) Tilt up = 230 bar (3335 psi) Saw motor = 320 bar (4641 psi) (except 25cc motor = 280 bar (4061 psi)

B C

A

570-18

A E 570-18

B D

F

C

G

570-05

H

570-06

4.8

Tigercat TH570 Harvesting Head

Hydraulic System

SOLENOID PILOT ORIFICE SIZE IDENTIFICATION 2.0 mm diameter = marked 2 1.5 mm = marked 15 1.3 mm = marked 13 1.2 mm = marked 12 1.1 mm = marked 11 1.0 mm = marked 10 0.9 mm = marked 9 0.8 mm = marked 8 0.7 mm = marked 7 0.6 mm = marked 6 NOTE: New solenoids are supplied with a 3.0 mm orifice. This orifice is not used and must be replaced with the original sized orifice used for that hydraulic function.

NOTE: When removing the solenoid ensure that the orifice comes out of the valve cavity attached to the solenoid. Carefully pry the orifice off and snap the new orifice on. Torque the solenoid mounting bolts to 3 N-m (26.5 lbf-in).

10 B

C

TH575-179 TH575-105

A

570-05

A Typical Solenoid Pilot Valve B Orifice

Main Control Valve

C #10 = 1 mm

4.9

Hydraulic System MAIN CONTROL VALVE TORQUES

Tigercat TH570 Harvesting Head SPLIT FLANGE BOLT TORQUE

TIE ROD NUT TORQUE M10 x 1.5 Tie Rod Nuts

A

B 570-05 570-05

Hose Split Flanges M10 x 1.5 Tie Rod Nut Torque Sequence

Apply hydraulic oil to threads.

Torque the M10x1.5 nuts in 3 steps, 13 N-m (10 lbf-ft) 34 N-m (25 lbf-ft) 47 N-m (35 lbf-ft) in sequence as shown in illustration.

M12 x 1.75 Tie Rod Nuts

A. Tank Hose Split Flange (Upper) Install hardened flat washers under the M12-1.75X40 socket head screws. Torque the socket head screws to 88 N-m (65 lbf-ft) as shown in tightening sequence illustration.

B. Pressure Hose Split Flange (Lower) Install hardened flat washers under the M12-1.75X55 socket head screws. Torque the socket head screws to 101 N-m (75 lbf-ft) as shown in tightening sequence illustration.

570-06

M12 x 1.75 Tie Rod Nut Torque Sequence

Apply hydraulic oil to threads.

FLANGE2.JPG

Flange Bolt tightening Sequence

Torque the M12x1.75 nuts in 3 steps, 20 N-m (15 lbf‑ft) 61 N-m (45 lbf-ft) 81 N-m (60 lbf-ft) in sequence as shown in illustration.

4.10

Tigercat TH570 Harvesting Head

Hydraulic System

MAIN SAW MANIFOLD - SAW FEED AND CHAIN TENSIONING

D

C

The main saw manifold receives oil from the control valve. The manifold supplies oil to the saw unit for chain tensioning and the saw bar feed cylinder.

L1

C D 3

F C 1

F C 2

D2

A

The manifold has a solenoid valve to direct oil to the saw bar feed cylinder (extend and retract), a pressure reducing valve for the chain tensioning circuit, and flow control valves for regulating the saw bar feed speeds.

B 1 SV

2

A. Solenoid valve - bar feed

P2

PRV

SAW MANIFOLD COMPONENTS

SV

SV

B

A

B. Pressure reducing valve - saw tension

TH575-005

C. Flow control valves - bar feed and retract

Saw Manifold

D. Gauge port - saw tension pressure

L1

D 3 F C 1

F C 2

D2

A B P2

SV

2

4.11

1

PRV

570-02

SV

SV

TH575-005

Hydraulic System

Tigercat TH570 Harvesting Head

HYDRAULIC SYSTEM COMPONENTS

ACCUMULATOR PRE-CHARGE PRESSURE

ACCUMULATORS

Measuring wheel arm accumulator pre-charge = 45 Bar (650 psi)

A. Measuring wheel arm B. Feed wheel arms (5700101–5700110) The measuring wheel arm and the feed wheel arm accumulators are diaphragm type and are installed with a nitrogen pre-charge pressure.

Feed wheel arm accumulator pre-charge = 180 Bar (2610 psi)

B A

570-20

570-08

A

E

D B

C A00171

A B C D E

Accumulator

Gas Valve with Hex Locking Screw and Sealing Washer Poppet (seats against oil port after oil evacuation) Fluid Port Diaphragm Shell

4.12

Tigercat TH570 Harvesting Head

Hydraulic System

MEASURING WHEEL ARM ACCUMULATOR

FEED WHEEL ARM ACCUMULATOR

The accumulator is connected to the base end of the measuring wheel arm cylinder. After the measuring wheel extends and makes contact with the stem the valve stays on and oil is trapped in the cylinder base.

As the measuring wheel travels along the stem during feeding, there may be some force trying to move the wheel off the stem. The accumulator pre-charge provides a shock absorbing pressure which will maintain a downward force on the measuring wheel to maintain contact with the stem.

5700101–5700109

A low pre-charge pressure in the measuring wheel arm accumulator will reduce the amount of shock absorbing and may allow the measuring wheel to lose contact with the stem. This will result in inaccurate length measuring.

The accumulator is connected to the base end of the feed wheel arm cylinders. During the feeding process oil is trapped in the base end of the feed wheel arm cylinders. The accumulator will allow some outward movement caused from obstacles on the stem, i.e. knots etc. The feed wheels will maintain contact with the stem and feed will continue.

A low pre-charge pressure in the feed wheel arms accumulator will reduce the ability for the arms/wheels to absorb shocks and follow the stem, increasing potential for motor arm and frame damage and greater chance of wheel spin.

C A

A B

B C TH570-030

TH570-029

A Accumulator B Feed Wheel Arm Cylinders C To Control Valve

A Accumulator B Measuring Wheel Arm Cylinder C To Control Valve

4.13

B

Hydraulic System

Tigercat TH570 Harvesting Head

CHARGING THE ACCUMULATORS

WARNING Hydraulic circuits with accumulators store hydraulic oil under pressure and may remain pressurized after the engine is turned off.

WARNING The accumulator must not be altered in any way.

Do not weld or machine the pressure vessel.

Use only NITROGEN for charging accumulators, never use oxygen or air due to risk of explosion.

NOTE: A detailed instruction sheet is provided with the charging and testing device.

CHECKING THE PRE-CHARGE PRESSURE After the accumulator has been put in service, the precharge pressure should be checked with an accumulator charging and testing device.

Prior to beginning any service work on the measuring wheel arm cylinder or the feed wheel arm cylinders, pressure must first be released to prevent injury from oil spraying. Park the head in the upright position with the tilt lock bolts installed. Open the wheel arms and shutoff the engine. The measuring wheel arm, or feed wheel arm accumulator can now be removed from the circuit.

Install the charging and testing device on the gas valve.

While depressing the button on the charging device, observe gas pressure reading on gauge.

If the gas pre-charge pressure is low, investigate the cause and correct it. Possible causes of lost pre-charge pressure include a leaking or damaged gas valve, or a damaged diaphragm.

4.14

Tigercat TH570 Harvesting Head

Hydraulic System

HYDRAULIC SYSTEM COMPONENTS MOTORS A. Feed wheel drive motors. Radial piston 800cc, 900cc and 1000cc.

B. Rotate motor. Gerotor 337cc, or 315cc.

C. Saw motor (0.404 saw) bent axis fixed displacement piston 19cc, 25cc, and 30cc.

Saw motor (0.75 saw) bent axis fixed displacement piston 40cc.

A

570-03

B

570-22

C

TH575-032

570-02

4.15

Hydraulic System

Tigercat TH570 Harvesting Head

ROTATE MOTOR Rotate motors have a separate crossover relief manifold with fixed 80 Bar (1160 psi) relief valves. In addition to the crossover relief manifold there is a counterbalance manifold on the lower side of the stick boom with relief valves set at 127 Bar (1850 psi).

ROTATE CIRCUIT PRESSURE AND FLOW ADJUSTMENT NOTE: Pressure settings for the rotate circuit are very sensitive to the flow setting of the direction valve on the carrier as the components on the carrier are capable of much higher flows than the rotate is using.

1. Set the rotate flows (in both directions) to 8-10 gpm.

IQAN can be used if the main pump has a swash angle sensor, or a flow meter can be installed to verify the flow setting.

A

2. Disconnect and cap the rotate hoses and open ports as they exit the counter balance manifold on the boom. This removes the rotate motor and the crossline relief manifold from the circuit.

B

3. Connect a 350 Bar (5000 psi) gauge to the main pump LS test port.

4. Fully operate the rotate function in one direction and hold the function on.

5. Lower the corresponding port relief on the main valve rotate section and monitor the pressure reading at LS. 6. Once you have verified the relief was able to lower the pressure, increase the relief setting to 137 Bar (2000 psi).

570-29

A Rotate Motor B Crossover Relief Manifold

A

C

B

D

TH575-548

A Counterbalance Manifold B Stick Boom

Counterbalance Manifold

C Connection to Crossover Relief Manifold on Rotate Motor D Counterbalance Valves

4.16

Tigercat TH570 Harvesting Head

Hydraulic System

7. If the pressure will not adjust to this value but stops increasing in the 124-131 Bar (1800-1900 psi) range, then the counterbalance valve is set correctly.

8. Lower the port relief setting to 103 Bar (1500 psi).

9. If the pressure does not go to 124-131 Bar (18001900 psi) then adjust the counter balance valve on the boom. Do not adjust the relief too far beyond where it stopped increasing the pressure (1/4 turn = 110 Bar (1600 psi).

10. Adjust the counter balance valve on the boom to 127 Bar (1850 psi). If the presure will not increase to this value, increase the port relief on the main valve.

11. After the counter balance valve is set, lower the port relief setting to 103 Bar (1500 psi).

12. Repeat the pressure setup for the other direction.

13. Reconnect the rotate hoses. Operate in both directions to purge out any air introduced.

14. Adjust the spool stops on the carrier control valve to achieve rotate speed of 5 seconds, stop to stop, in both directions.

15. Once the speeds are correct. Check the port relief settings. Depending on how much the flows were adjusted, the port relief settings may have changed.

Adjust as required.

16. Check pressure while rotating head in IQAN / Measure / Sensors / LS Pressure = 70 – 90 Bar (1000 – 1300 PSI).

17. Check for smooth and consistent rotate movement. If rotation is not well controlled, adjust counterbalance valves CCW ¼ turn.

4.17

Hydraulic System

Tigercat TH570 Harvesting Head

SAW MOTOR INSTALLATION AND BLEEDING INSTALLATION NOTE: Refer to illustration for correct bolts for saw motor mounting. If the saw motor requires replacement, do not remove bolts used to hold motor housings together. If motor (19cc) housing bolts are removed, the motor will be disassembled. Refer to timing illustration to assemble the 19cc motor. Failure to correctly time the motor will result in motor failure.

Mounting bolts = 102 lbf-ft (138 N-m)

Saw Motor– 19 cc 0.404 Saw

MOTOR HYDRAULIC BLEEDING

C

A

B

575-38

Saw Motor– 25 cc 0.75 Saw

A Do not remove bolts (4) to remove motor.

B Motor Mounting Bolts (6) C Case Drain (Bleed) Port

1. Loosen case drain connection on motor.

2. Start engine and operate at idle. Do not engage saw.

3. Let air purge from motor case, this can take several minutes. Shut off engine and tighten connection.

NEW MOTOR BREAK IN AND COLD MOTOR START UP PROCEDURE The majority of hydraulic motor failures are caused during the first minutes of a new motor installation or during a cold start. The life of a hydraulic motor may be drastically reduced during a cold start if the shaft speed exceeds 5000 rpm and the pressure at the motor is in excess of 100 Bar (1450 psi).

1. Start engine and measuring system.

2. To break in a new motor, or to warm up a cold motor, select a log with a diameter of less than 15 cm to make a minimum of 20 short cuts each less than 1 second and pause for a minimum 2 seconds.

A

C

575-542

B

575-543

Saw Motor– 19 cc 0.404 Saw

A Do not remove bolts (4) to remove motor.

B Case Drain (Bleed) Port C Motor Mounting Bolts (4)

4.18

Tigercat TH570 Harvesting Head

Hydraulic System

RETURN LINE MANIFOLD AND CHECK VALVE

maintained (tank pressure measured at the head w/ H855C at operating temperature and 360 lpm = 14 Bar, (203 psi).

The return (tank) line check valve has two purposes: 1. Maintains minimum pressure in the tank line and tank galleries of the head control valve to improve anticavitation characteristics. Nominal cracking pressure is 5 Bar (72.5 psi). Oil from the tank galleries will flow through the anti-cavitation check valves incorporated into valve section port reliefs if pressure in the work lines drops below tank gallery pressure. This helps to prevent cavitation and component damage and component drift.

In addition, the cam/piston type feed motors require a minimum charge pressure maintained in both work lines to ensure pistons have positive contact with the cam lobe, rollers roll properly and do not skid or skip. Loss of charge pressure will cause severe motor damage and premature failure. Higher speeds require higher charge pressures (recommend minimum 12-15 Bar, (174-217 psi) at factory set wheel speeds).

Passive charge pressure is created by operating head functions that return oil through the tank line. Once pressure in the tank gallery exceeds the cracking pressure of the check valve, it opens to allow oil to return to the carrier. The long hoses between boom-mounted check valve and head provide a slight accumulator effect, further improving anti-cavitation characteristics.

The flow characteristics of the check valve and manifold provide the desired increase in tank pressure as flows increase to ensure minimum charge pressure is A

In addition, the harvesting head is equipped with an active-fill or charge valve, marked PRV-T, in the midinlet manifold section of the main control valve. This is a differential pressure sensing (DPS) valve taking oil directly from the main pressure gallery and reducing its pressure to 2.8 Bar (40.6 psi) to charge the tank gallery.

This ensures a minimum pressure in the tank gallery before passive charge can build or if passive charge is lost. Note the PRV references to case, so case pressure directly affects the pressure setting. A restricted or otherwise high case pressure can cause the charge valve pressure to exceed the check valve cracking pressure, causing the charge valve to continuously flow oil. This causes lost head performance, excessive heat, increased fuel consumption and premature charge valve failure.

2. Hose break protection, if a tank hose between boom and head breaks, the check valve closes preventing draining of the hydraulic tank.

The Tigercat check valve manifold was designed for our 800 series carriers, where a single tank line from the head is split to 2 separate lines on the carrier. This minimizes pressure rise as flow increases providing the most efficient operation. If the manifold is used with only a single carrier tank line, tank pressure will be higher at high flows decreasing system efficiency.

B

575-560

A Stick Boom

B Manifold and Check Valve

4.19

Hydraulic System

Tigercat TH570 Harvesting Head

RETURN MANIFOLD PORT IDENTIFICATION The manifold has the following inlet ports: A1 = Main tank line connection to head A2 = Auxiliary lower flow tank connection that bypasses the check valve GA1 = Location for -04 ORB test fitting to measure pressure before the check valve GA2 = Location for -04 ORB test fitting to measure pressure after the check valve C1 = Auxiliary lower flow side tank connection that bypasses the check valve B1 = Primary return port to carrier (A -16 ORB or -20 ORB custom check seat/adapter is available.

Note: DO NOT replace this custom adapter with a standard port adapter.)

B2 = Secondary return port to carrier (-12 ORB) All carriers equipped with Tigercat harvesting head require a minimum 5 Bar (72.5 psi) cracking pressure check valve in the tank line.

Consult Tigercat if installing a Tigercat head on a non -Tigercat carrier.

GA1

C1

B1

A2

A1

GA2

B2 575-564

575-563

Manifold Rear Ports

Manifold Front Ports B2

B1

B2

C1

B1

C1 A

A GA2

GA2 A2 A1

575-561

Check Valve Poppet Seated

A Poppet Seated

A2 575-562

A Poppet Open

4.20

A1

Check Valve Poppet Open

Tigercat TH570 Harvesting Head

J

Hydraulic System

I

H

A

B D

C

G

570-05 A00203

A B C D E F G H I J

F

E

Return Manifold Check Valve and Mid-Inlet Manifold Charge Valve Schematic Valve RV-PS PRV-PS RV-A1 PRV-T RV-MAIN Return Manifold Check Valve

Case Drain Manifold Tilt Frame Hose Swivel Case Drain Return from Rotate Motor Counterbalance Valve Return 1 Return 2 Return Manifold and Check Valve Pump Supply DPS Charge Valve Mid-Inlet Manifold

4.21

Pressure Setting 50 bar (725.2 psi) 35 bar (507.6 psi) 10 bar bias (145 psi) 2.8 bar (40.6 psi) 350 bar (5076.3 psi) 5 bar (72.5 psi)

Hydraulic System

Tigercat TH570 Harvesting Head

HYDRAULIC SYSTEM COMPONENTS CYLINDERS Hydraulic cylinders are used to operate the delimbing knives, feed wheel arms, measuring wheel arm, and tilt frame.

The Hultdins SC100 saw option is equipped with a feed out cylinder that is an integral part of the saw assembly.

A. Front delimbing knives cylinder: 2.5" bore.

B. Measuring wheel cylinder: 1.5" bore.

D

D

C. Saw feed cylinder (integral to saw unit) D. Tilt frame cylinder: 2.5" bore.

E. Back delimbing knife cylinder: 2.5" bore.

F.

E

Feed wheel arms cylinder: 2.75" bore.

F F 570-04

A A

B

C

TH575-032

570-02

4.22

Tigercat TH570 Harvesting Head

Hydraulic System

HYDRAULIC SYSTEM COMPONENTS

CYLINDER IDENTIFICATION

CYLINDER CHECK VALVE

Cylinder part numbers are stamped on the cylinder. See illustrations for location. Check Parts Catalog to identify the seal kit used.

The delimbing knives and feed wheel arm cylinders are equipped with a base end cushion. A check valve is incorporated to allow fast extension out of the cushion.

The tilt cylinders have a cushion on the rod end, see CYLINDER SEALS - TILT CYLINDER in this section.

Check valve torque = 50 N-m (37 lbf-ft) lubricated.

A

575-549

TH575-538

A Part-Number Stamp

Typical Cylinder

A

A 575-550

Measuring Wheel Arm Cylinder

TH575-539

A Part-Number Stamp

A 2.5 in. Cylinder

4.23

Hydraulic System

Tigercat TH570 Harvesting Head

CYLINDER SEALS KNIFE AND WHEEL ARM CYLINDERS WITH 2 PIECE PISTON ASSEMBLY NOTES AND TORQUES 1. Note the direction of the wiper seal and install with Loctite #271. Install the spiral retaining ring ensuring that the ring is fully seated in the groove.

2. Gland bolt torque = 32.5 N-m (24 lbf-ft)lubricated.

3. Piston torque = 1708 N-m (1260 lbf-ft)lubricated.

TH575-159

TH575-161

A

B

TH575-160

A Piston Seals

B Gland Seals

4.24

Tigercat TH570 Harvesting Head

Hydraulic System

CYLINDER SEALS TILT CYLINDERS WITH 2 PIECE PISTON ASSEMBLY NOTES AND TORQUES 1. Note the direction of the wiper seal and install with Loctite #271. Install the spiral retaining ring ensuring that the ring is fully seated in the groove.

2. Gland bolt torque = 32.5 N-m (24 lbf-ft)lubricated.

3. Piston torque = 1708 N-m (1260 lbf-ft)lubricated.

TH575-033

TH575-032

A

B

C

TH575-031

A Piston Seals B Gland Seals

C Cylinder Cushion

4.25

Hydraulic System

Tigercat TH570 Harvesting Head

CYLINDER SEALS MEASURING WHEEL ARM CYLINDER ASSEMBLY NOTES AND TORQUES 1. Piston retaining nut (12mm) = Lubricated and torque to 81 N-m (60 lbf-ft).

Piston retaining nut (5/8 UNF) = Lubricated and torque to 176 N-m (130 lbf-ft).

2. Thread the gland on the barrel until it bottoms out.

3. Back off the gland until the hydraulic port lines up with the barrel hydraulic port.

4. Use Loctite #271 on the gland locking ring and torque to 122-134 N-m (90-99 lbf-ft).

A

TH575-108

TH575-107

A Gland Locking Ring

4.26

Tigercat TH570 Harvesting Head

Hydraulic System

HYDRAULIC SYSTEM COMPONENTS

SWIVEL CARTRIDGE SEAL KITS

HOSE SWIVEL

B

The hose swivel provides hydraulic and electrical connections between the machine and head to allow for 310º rotation of the harvesting head. Individual swivel cartridges (A) are installed in the swivel for the return, pump supply, case drain, and electrical connections to the head.

B

A A

A

C

A

D

TH575-156

A B C D

Male JIC Swivel Cartridge Seal Kit

O-Ring (2 used) Backup Ring (2 used) O-Ring (1 used) Thrust Washer (1 used)

A seal kit is available for each of the two male JIC swivel sizes: -12 (case drain, and electrical) and -20 (return).

Refer to the parts catalog for the seal kit part numbers.

TH575-155

A Swivel Cartridge

The swivel cartridge installation torque is:

SWIVEL - HOSE CONNECTIONS

Size -12 = 475 N-m (350 lbf-ft)

The swivel housing has 3 fittings to allow for lubricating the swivel bushing inside diameter and upper and lower surfaces.

Size -20 = 542 N-m (400 lbf-ft)

D

A B

B

B

E

C

A TH575-157

575-559

A B C D

F

D

Male ORS Swivel Cartridge Seal Kit

O-Ring (2 used) Backup Ring (2 used) O-Ring (1 used) Thrust Washer (1 used)

A seal kit is available for the -20 male ORS (pump supply) swivel. Refer to the parts catalog for the seal kit part number.

575-558

A B C D E F

A C

Load Sense Return Pump Supply Case Drain Electrical Bushing

The swivel cartridge installation torque is: Size -20 = 542 N-m (400 lbf-ft)

4.27

Hydraulic System

Tigercat TH570 Harvesting Head

HYDRAULIC PRESSURE TESTS

5. Turn head power OFF, turn pilot switch OFF and shut engine OFF.

DANGER Do not service the head from the front. Always service from the side or the rear. Failure to follow these safety precautions can lead to risk of serious injury!

NOTE: It is necessary to park the head in the TILTED DOWN position to remove the valve cover and access the main valve for test gauge installation or when any service to the hydraulic valve is required.

PARKING HEAD TILTED DOWN 1. Park machine on level ground.

6. Install tilt frame lock bolts as outlined in TILT FRAME LOCK BOLTS. 7. Remove the cover on the back of the attachment to access test ports on the valves.

WARNING The engine is running and the head is hydraulically powered during the pressure testing procedure. Ensure that personnel performing this operation are clear of the knife and wheel arms' capture zones, rotating components and the saw bar openings!

2. Raise boom to provide clearance to tilt head down.

3. Tilt head DOWN. 4. Extend boom and stick and lower harvesting head to the ground. Lower head enough to rest the full weight of the head on the ground as shown.

B

A

570-40

A Remove Valve Cover

Head Parked Tilted Down

B Install Tilt Lock Bolts (2)

4.28

Tigercat TH570 Harvesting Head

Hydraulic System

TILT FRAME LOCK BOLTS The tilt frame is equipped with two service locking bolts.

The lock bolts, one on each side of the attachment, are used to lock the attachment in the tilt DOWN or tilt UP position for service and repair.

When not in use the lock bolts are stored in the lock bolt hole storage location on the attachment frame.

A A

570-11

570-12

A Lock Bolt Storage Location

A Lock Bolt Position for Tilt Up

A

570-40

A Lock Bolt Position for Tilt Down

4.29

Hydraulic System

Tigercat TH570 Harvesting Head

HYDRAULIC PRESSURE TESTS DANGER Do not service the head from the front. Always service from the side or the rear. Failure to follow these safety precautions can lead to risk of serious injury!

REMOVE THE SAW CHAINS IMPORTANT! All service and repairs should be carried out by qualified personnel or an authorized repair shop with suitable tools and lifting devices.

TEST EQUIPMENT TEST GAUGE CONNECTIONS IMPORTANT: Use gauges with long hoses. This allows gauges to reach from the attachment to inside the cab of the carrier. Keep gauge hoses clear of any moving parts on the attachment and carrier.

ELECTRONIC PHOTOELECTRIC TACHOMETER An electronic (non contact) photoelectric tachometer is required for measuring the speeds of the various functions being tested.

575-148 575-147

Remove Saw Chain(s)

Prior to performing any tests remove the main saw chain and top saw chain (if equipped). Refer to chain saw manufacturers service manual, for replacing the saw chain.

IMPORTANT! When working on the saw chain always ensure the engine is shut off and wear safety gloves to prevent injuries.

4.30

575-148A

Tigercat TH570 Harvesting Head

Hydraulic System

HYDRAULIC PRESSURE TESTS - PRESSURES AND SPEEDS PRESSURES MAIN CONTROL VALVE Pilot pressure reducing valve.......................................................................................................... 35 Bar (508 psi) Pilot pressure relief valve (non-adjustable)..................................................................................... 50 Bar (725 psi) Front Knives Open (B)...................................................................................................................95 Bar (1375 psi) Front Knives Close (A)................................................................................................................ 210 Bar (3045 psi) Wheel Arms Open (B)................................................................................................................. 140 Bar (2030 psi) Wheel Arms Close (A).................................................................................................................250 Bar (3625 psi) Back Knife Open (B)......................................................................................................................95 Bar (1375 psi) Back Knife Close (A)................................................................................................................... 210 Bar (3045 psi) Tilt Down relief valve (non-adjustable)........................................................................................230 Bar (3335 psi) Tilt Up relief valve (non-adjustable).............................................................................................160 Bar (2320 psi) Rotate crossline reliefs (non-adjustable)....................................................................................... 80 Bar (1160 psi) Rotate counterbalance valves (factory set DO NOT ADJUST) Measuring Wheel pressure reducing valve..................................................................................... 48 Bar (700 psi) Measuring Wheel relief valve (non-adjustable)............................................................................. 80 Bar (1160 psi) Saw bar feed (0.404" saw) (main control valve PRV-SAW).......................................................... 76 Bar (1100 psi) Saw chain tension (0.404" saw) (saw manifold PRV).....................................................................31 Bar (450 psi) Saw bar feed (0.75" saw) (main control valve PRV-SAW)..............................................................34 Bar (490 psi) Saw chain tension (0.75" saw) (saw manifold valve PRV)..............................................................45 Bar (650 psi) ACCUMULATORS Wheel Arms................................................................................................................................. 180 Bar (2611 psi) Measuring Wheel............................................................................................................................ 45 Bar (650 psi)

SPEEDS FEED WHEELS 800 cc......................................................................................................................... MAX 215 rpm (Fwd and Rev) 900 cc......................................................................................................................... MAX 195 rpm (Fwd and Rev) 1000 cc.......................................................................................................................MAX 180 rpm (Fwd and Rev) SAW MOTORS 0.404" saw (with 13 tooth sprocket) CHAIN REMOVED........................................................................... 9200 rpm 0.404" saw (with 14 tooth sprocket) CHAIN REMOVED........................................................................... 8500 rpm 0.404" saw (with 16 tooth sprocket) CHAIN REMOVED........................................................................... 7400 rpm 0.75" saw (with 9 tooth sprocket) CHAIN REMOVED............................................................................... 5800 rpm 0.75" saw (with 11 tooth sprocket) CHAIN REMOVED............................................................................. 4500 rpm NOTE: Pressures measured with engine at idle, speeds measured at full throttle. All hydraulic settings to be performed with hydraulic oil at operating temperature 60 ºC (140 ºF) for summer oil, or 38 ºC (100 ºF) for winter oil. Also see HYDRAULIC PRESSURE TESTS, CARRIER SET-UP for basic carrier set-up requirements.

4.31

Hydraulic System

Tigercat TH570 Harvesting Head

CONTROL VALVE QUICK REFERENCE

FEED REDUCERS AND TEST PORTS

VALVE SOLENOIDS AND WIRE NUMBERS

F

A

J K

H I

E

H L

I

G

F

D

B

G

E

C

J

K

M

D

C

B

A

TH570-009A

Feed Reducers A. Feed reducer - front knives open B. Feed reducer - front knives close C. Feed reducer - back knife open D. Feed reducer - back knife close Test Ports E. Saw bar PRV F. Main pressure G. Load sense H. Pilot supply I. Tank pressure J. Case drain K. Measuring wheel

P

N

Q

O

R

SPOOL STOPS A

TH570-009A TH570-009B

C

D

F

E

B

A

A View A

B. C. D. E. F. G. H. I. J. K. L. M. N. O. P. Q. R.

Front knives open - wire #190 Front knives close - wire #187 Wheel arms open - wire #176 Wheel arms close - wire #177 Back knife open - wire #180 Back knife close - wire #179 RH Wheel arm feed motor reverse - wire #185 RH Wheel arm feed motor forward - wire #232 LH Wheel arm feed motor reverse - wire #182 LH Wheel arm feed motor forward - wire #181 Tilt lock - wire #174 Measuring wheel extend - wire #195 Pressure control back knife close - wire #165 Pressure control front knives close - wire #173 Tilt frame down - wire #175 Tilt frame up - wire #172 Saw motor on - wire #170

H

G

TH570-009A

A. B. C. D. E. F. G. H. 4.32

LH feed motor forward RH feed motor forward Spool stop - back knife open Spool stop - front knives open Spool stop - front knives close Spool stop - back knife close RH feed motor reverse LH feed motor reverse

Tigercat TH570 Harvesting Head

Hydraulic System

HYDRAULIC PRESSURE TESTS CARRIER SET-UP NOTE: Set-up will differ from each carrier. Refer to specific carrier manual for test procedures.

BASIC CARRIER SET-UP REQUIREMENTS 1. Supply pressure (maximum) 310 Bar (4500 psi) 2. Supply flow (minimum at 175 Bar, 2500 psi) 325 L/ min (85 US gpm) 3. Supply flow (maximum) 370 L/min (98 US gpm) 4. Return line pressure (maximum at maximum flow) 25 Bar (360 psi) 5. Case drain pressure (maximum while feeding at full speed) 2 Bar (30 psi) 6. Rotate pressure 110 Bar (1600 psi) 7. Rotate flow 20 L/min (5 US gpm)

4.33

Hydraulic System

Tigercat TH570 Harvesting Head

HYDRAULIC PRESSURE TESTS PILOT PRESSURE

WARNING The attachment will be operating during this procedure. Operator must ensure that no one is near the attachment during this procedure.

The swing brake should be applied at all times during this procedure.

During this test procedure the pilot supply pressure reducing valve and relief valve will be checked.

B

Pressure reducing valve = 35 Bar (508 psi)

C

D

570-18

Relief valve = 50 Bar (725 psi) (non adjustable) 1. Get the hydraulic oil up to operating temperature.

2. Park the head titled down Refer to PARKING THE HEAD in Section 1.

3. Remove the saw chain.

4. Connect a 0 – 1000 psi gauge to the pilot supply gauge test port on the main control valve. Route the hose to the cab.

5. Disconnect all electrical connections on the control valve spool solenoids. This will disable all cylinder and motor functions.

E

6. From inside the cab, close and latch the cab door.

7. Start engine and run at IDLE. 8. Start the measuring system. Operate the Head Close function.

9. Observe gauge reading. Gauge pressure should indicate the pilot pressure reducing valve pressure of 35 Bar (508 psi).

10. Check the pilot pressure relief valve setting by slowly increasing the pressure reducing valve until the gauge pressure stops increasing. The non‑adjustable relief valve pressure is 50 Bar (725 psi). If the pressure is less than that, the relief valve cartridge will require replacement.

11. Adjust the pressure reducing valve setting to 35 Bar (508 psi) 12. Shut engine off and remove gauge.

570-14

A B C D E

4.34

Main Control Valve Pilot Supply Gauge Test Port Pilot Supply Relief Valve Pilot Supply Pressure Reducing Valve Tilt Lock Bolt

A

Tigercat TH570 Harvesting Head

Hydraulic System

A

B C

D

E

F

G

A00204

A B C D E F G

Pilot Pressure Reducing Valve Pilot Supply Pilot Relief Valve To Back Knife Circuit To Case Drain Manifold Pump Supply To Return Manifold

Pilot Circuit Schematic Valve RV-PS PRV-PS RV-A1 PRV-T RV-MAIN

4.35

Pressure Setting 50 bar (725.2 psi) 35 bar (507.6 psi) 10 bar bias (145 psi) 2.8 bar (40.6 psi) 350 bar (5076.3 psi)

Hydraulic System

Tigercat TH570 Harvesting Head

4.36

Tigercat TH570 Harvesting Head SECTION 6 – ELECTRICAL Read and understand the entire contents of this manual, and all manuals for any attachments or accessories associated with this equipment, prior to operating or servicing.

CONTENTS – SECTION 6 E

ISSUE 1.1, NOVEMBER 2016

ELECTRICAL SCHEMATIC BOOM AND HEAD FUNCTIONS................................................................................................................ 6.17, 6.19 BOOM AND HEAD MODULES.............................................................................................................................. 6.15 CAB AND CONTROLS 18-BUTTON CONTROL HANDLES............................................................................................................. 6.5, 6.7 FOUR-BUTTON CONTROL HANDLES.............................................................................................................. 6.9 CAB ELECTRICAL BOX FOUR-BUTTON CONTROL HANDLES............................................................................................................ 6.11 INDEX........................................................................................................................................................................ 6.3 TERMINAL STRIP CONNECTIONS..................................................................................................................... 6.13

Electrical

Tigercat TH570 Harvesting Head

6.2

Tigercat TH570 Harvesting Head

Electrical Electrical Schematic – Index

A

B

Electrical Schematic – Index

6.3

6.4

Tigercat TH570 Harvesting Head

Electrical

dxPC (DISPLAY AND COMPUTER)

d5DI9 (DISPLAY)

d5IO12c (CAB I/O) A5

A12 A13

A4 A14

LEVELING UNDERCARRIAGE OPTION ONLY

A15

C4

1

B3

2

C5

LEVEL RIGHT

A2

A5

B14

C3

C2 B

A

B3

A12 A13

B5 B4

A15

A14 C4

C5

D12

D14

D15

D13

4

F3

5

F2 A

F4

LEVEL BACKWARD

D2

LEVEL FORWARD

D3

D5

D12

E2 E5

D4

D13

E4 E13

C2

F5

B

E12

B15

LEVELING UNDERCARRIAGE OPTION ONLY

3

E15

B12

B14

A3

E14

B13

C3

A2

E13

E3 B2

A4

STICK IN

2

E5

E12 STICK OUT

1

E3

E2 E4

B12

B15

A3

TELESCOPIC STICK BOOM OPTION ONLY

B4

B13

4 5

B2

B5

3 LEVEL LEFT

D5 D4

E15

D15

D14 F4

F5

E14 F3 F2 D2

D3

Electrical Schematic – Cab and Controls

6.5

6.6

Tigercat TH570 Harvesting Head

Electrical

d5MC-F (MAIN CONTROLLER) d5IO48 (JOYSTICK I/O)

RIGHT HANDLE FUNCTIONS

RIGHT KEYPAD FUNCTIONS

LEFT KEYPAD FUNCTIONS

LEFT HANDLE FUNCTIONS

CONTROL HANDLES CONTINUED FROM SHEET 2

Electrical Schematic – Cab Electrical Box – 18-Button Control Handles

6.7

6.8

Tigercat TH570 Harvesting Head

Electrical

dxPC (DISPLAY AND COMPUTER)

d5DI9 (DISPLAY)

d5IO12c (CAB I/O) SPECIES 1

ALL KNIVES OPEN

C12 /C14

C13 /C14

ALL KNIVES CLOSE

C2

SAW

C3

TILT UP

C4

TILT DOWN

C5

TOP SAW

PRESET + PRESET -

D2

D3

D4

PRESET 1

NEW STEM

TOP MEASURE

D5

D12

D13

1

2

3

D14

D15

E2

4

5

6

E3

E4

E5

7

8

9

E12

E13

E14

10

12

11

E15

A2

A3

FEED FWD

HEAD CLOSE / WHEELS CLOSE

F2

HEAD OPEN / WHEELS OPEN

F3

SLOW FEED REV / OPTION

F4

BACK KNIFE OPEN

F5

F12 /F14

F13 /F14

FEED REV

D2 D3 D4 D5 D12 C12

C14

F12

D13

C13 D14

F14

F13

D15 E2 E3 E4 E5

C2

F2

E12 C3

F3

E13 E14

C4

F4

E15 C5

F5

A2 A3

Electrical Schematic – Cab Electrical Box – Four Button Control Handles

6.9

6.10

Tigercat TH570 Harvesting Head

Electrical

d5MC-F (MAIN CONTROLLER) d5IO48 (JOYSTICK I/O)

RIGHT HANDLE FUNCTIONS

LEFT HANDLE FUNCTIONS

KEYPAD FUNCTIONS CONTROL HANDLES CONTINUED FROM SHEET 4

Electrical Schematic – Cab Electrical Box – Four Button Control Handles

6.11

6.12

Tigercat TH570 Harvesting Head

Electrical

Electrical Schematic – Terminal Strips Connections

6.13

6.14

Tigercat TH570 Harvesting Head

Electrical

d5IO12b

d5IO12a

HEAD CONTROLLER

HEAD I/O A

HEAD I/O B

ALTERNATE CABLE

DASA CARRIER & BOOM CONNECTIONS

d5CI12

Electrical Schematic – Boom and Head Modules

6.15

6.16

Tigercat TH570 Harvesting Head

Electrical

FRONT KNIVES

B

A

WHEEL ARMS

B

A

BACK KNIFE

B

A B

A B

A

LH ARM FEED

RH ARM FEED

VALVE ASSEMBLY (^ TOP OF HEAD)

OR

Electrical Schematic – Boom and Head Functions

6.17

6.18

Tigercat TH570 Harvesting Head

Electrical

FRONT KNIVES

B

A

WHEEL ARMS

B

A

BACK KNIFE

B

A B

A B

A

LH ARM FEED

RH ARM FEED

VALVE ASSEMBLY (^ TOP OF HEAD)

OR

Electrical Schematic – Boom and Head Functions

6.19

6.20

Tigercat TH570 Harvesting Head SECTION 7 – MEASURING SYSTEMS Read and understand the entire contents of this manual, and all manuals for any attachments or accessories associated with this equipment, prior to operating or servicing.

CONTENTS – SECTION 7

ISSUE 1.1, NOVEMBER 2016

D

DIAMETER ENCODER............................................................................................................................................... 7.3 BEARINGS AND SEAL REPLACEMENT............................................................................................................. 7.24 DRIVE GEAR BACKLASH..................................................................................................................................... 7.26 ELECTRICAL TEST............................................................................................................................................... 7.20 REPLACEMENT........................................................................................................................................... 7.22, 7.24

M

MEASURING SYSTEMS............................................................................................................................................ 7.2 COMPUTER DISPLAY............................................................................................................................................. 7.3 MEASURING WHEEL ARM REPLACEMENT............................................................................................................................................ 7.14 COMPONENTS........................................................................................................................................................ 7.4 ELECTRICAL TEST............................................................................................................................................... 7.18 ENCODER................................................................................................................................................................ 7.4 ENCODER REPLACEMENT................................................................................................................................... 7.9 HUB COMPONENTS............................................................................................................................................... 7.5 HYDRAULIC PRESSURE TESTS........................................................................................................................ 7.16 SEAL, BEARING AND O-RING REPLACEMENT................................................................................................ 7.10 TORQUES................................................................................................................................................................. 7.6 WHEEL REPLACEMENT....................................................................................................................................... 7.13 WIRING HARNESS REPLACEMENT.................................................................................................................... 7.7

Measuring Systems

Tigercat TH570 Harvesting Head

MEASURING SYSTEMS

D

A C

B

570-16

A Front Knife Arm B Diameter Encoder Assembly

C Measuring Wheel and Encoder D Front Knife Arm

MEASURING WHEEL AND ENCODER A pulse generator type encoder is mounted in the hub of the measuring wheel assembly. A wheel is attached to the hub. When the measuring wheel arm cylinder is activated, the wheel is positioned against the tree.

As the tree is fed through the harvesting head the measuring wheel turns the encoder which produces a 500 pulse per revolution output signal. This signal is translated into log length by the system computer.

7.2

Tigercat TH570 Harvesting Head

Measuring Systems

DIAMETER ENCODERS

A

B

C

D

TH575-048

570-20

A Gear Shaft B Encoder

C Bracket D Encoder Housing

A drive gear attached to the front knives and a diameter encoder are used to determine tree diameter.

A pulse generator type encoder is mounted inside the diameter encoder assembly. A gear shaft on the encoder assembly turns the pulse generator. The gear shaft is in contact with the front knife arm drive gear and as the front knives close the gear turns the gear shaft that turns the encoder which produces a 500 pulse per revolution output signal.

COMPUTER DISPLAY–TIGERCAT D5

C

A

B

TH575-565

A Measured Diameter (in mm) B Log Profile C Measured Length (in cm)

This signal is translated into log diameter by the system computer.

The signals generated by the diameter encoders and measuring wheel encoder are transmitted to the system computer where the log data is calculated. The data is then transmitted to the computer display where it is displayed as measured length, diameter and log profile.

7.3

Measuring Systems

Tigercat TH570 Harvesting Head

MEASURING WHEEL

MEASURING WHEEL COMPONENTS A

B

C

F E A

D 570-28A

A B C D E F

570-09

A Measuring Wheel Assembly

The measuring wheel components are mounted in the main frame below the front knife arms.

A cover plate on the right side of the main frame can be removed to access the cylinder and hoses.

D

A C B

570-26

A B C D

Cover Plate Removed

Retainer Bolt Hoses (3) Retainer Pin Hydraulic Cylinder

7.4

Arm Wire Harness Guard and Strain Relief Wheel Hub Encoder (mounted inside hub) Cylinder

Tigercat TH570 Harvesting Head

Measuring Systems

MEASURING WHEEL HUB COMPONENTS

H

B

C

J

I

K

G F E D

B

C

O

A TH575-269

N TH575-268A

A. Encoder B. Coupling hub C. Flexible insert D. Access cover E. Foam vibration suppressor F.

O-Ring

G. Socket head capscrew - encoder mounting (3 used) H. Shaft seal I.

O-Ring

J.

O-Ring (grease passage)

K. Grease fitting L. Bearing cover M. Spring pin N. Bearing O. Auxiliary seal. Not factory installed. Can be fitted to reduce wheel spin when not contacting the tree for certain processing applications.

7.5

N

M

L

Measuring Systems

Tigercat TH570 Harvesting Head

MEASURING WHEEL ASSEMBLY COMPONENTS S

R

H N N

Q

L

O

M

A J

T

I

C

G

B E

K

F

D

P

TH570-034

A. Encoder

ENCODER INSTALLATION NOTES

B. Coupling hub

1. Apply 1 drop of Loctite 668 to the inside bore of the coupling hub (B).

C. Flexible insert D. Access cover E. Foam vibration suppressor F.

O-Ring

2. Install the coupling hub (B) on the encoder with the coupling hub face flush with the encoder shaft.

3. Coat the encoder body and shaft with dielectric grease.

G. Socket-head cap screw - encoder mounting (3 used)

4. Install spring pin (M) in hub. Allow the pin to protrude from the hub 9.25mm (3/8").

H. Shaft seal

5. Fill the cavity around the encoder with dielectric grease

I.

O-Ring

J.

O-Ring (grease passage)

K. Grease fitting L. Bearing cover M. Spring pin N. Bearing O. Axle mounting cap screws P. Access cover cap screws Q. Bearing cover cap screws R. Axle

TORQUES 1. Coupling hub (B) clamp screw = 0.7 N-m (6 lbf-in) 2. Encoder mounting screws (G) with anti-seize = 5 N-m (48 lbf-in) 3. Encoder access cover screws (P) with anti-seize = 15 N-m (138 lbf-in) 4. Bearing cover cap screws (Q) with anti-seize = 15 N-m (138 lbf-in) 5. Axle to arm mounting cap screws (O) with Loctite 248 in a cross pattern in two steps to final torque = 81 N-m (60 lbf-ft).

S. Arm T.

Seal. Not factory installed. Can be fitted for certain processing applications.

7.6

Tigercat TH570 Harvesting Head

Measuring Systems

MEASURING WHEEL ENCODER WIRING HARNESS REPLACEMENT

6. Remove the encoder cover three socket head capscrews and washers and remove the cover and O-ring. The encoder cover has a M6 X 1.0 X .25" deep, tapped hole in the centre to assist removal.

Remove the foam vibration suppressor.

1. Park the head titled down. Refer to PARKING THE HEAD in SECTION 1.

2. Remove the key from the ignition switch and install a DO NOT START ENGINE sign on ignition key switch.

7. Tag, then disconnect the four wires from the encoder connector.

8. Remove the two socket head screws for the wire harness guard and remove the guard from the measuring wheel arm. Remove the wire harness strain relief from the measuring wheel arm.

3. Remove the valve cover form the harvesting head frame.

4. Remove tilt lock bolts and start the engine. Tilt the harvesting head to the upright position and install the tilt lock bolts. Engage the swing brake and turn OFF the engine. Remove the key from the ignition switch and install a DO NOT START ENGINE sign on ignition key switch.

9

Pull the wire harness out of the measuring wheel arm.

5. Pull the measuring wheel assembly out of the frame.

The measuring wheel arm has a hole in it to install a support rod to hold the arm in the out position.

A C

A

B

TH570-059

A Wire Harness Guard B Measuring Wheel Arm C Strain Relief

570-27

A Hole for Support Rod

7.7

Measuring Systems

Tigercat TH570 Harvesting Head

9. Locate the harness at the back, left side of the head.

Unplug the 4 pin connector and loosen the strain relief connector. Note the routing of the harness for reference to install the new harness. Remove the wire harness and protective tubing from the head.

B

12. Connect the four wires to the encoder as shown in the following illustration. After the wires are connected to the encoder and routed in the housing, tighten the strain relief in the measuring wheel arm.

A

A

30190A R1

Encoder Pin Functions

13. Install the foam vibration suppressor.

14. Install the encoder access cover and O-ring. Apply Loctite 668 to the three cap screws and torque to 15 N-m (138 lbf-in).

TH570-059

15. Remove the temporary rod used to support the measuring wheel assembly for servicing. Install the valve cover.

A Strain Relief B Four-Pin Connector

10. Install new harness with protective tubing following the routing of the original harness. Route the new harness behind the guard above the measuring wheel pivot.

11. Feed the harness and protective tubing through the measuring wheel arm and strain relief to the encoder.

7.8

Tigercat TH570 Harvesting Head

Measuring Systems

MEASURING WHEEL ENCODER REPLACEMENT 1. Park the head upright with the exception of keeping the wheel arms open. Refer to PARKING THE HEAD in SECTION 1.

2. Remove the key from the ignition switch and install a DO NOT START ENGINE sign on ignition key switch.

7. Remove the wire harness guard two socket head screws and remove the guard from the measuring wheel arm. Loosen the wire harness strain relief in the measuring wheel arm enough to pull the wires out of the housing and provide clearance to remove the encoder 8. Remove the three socket head screws and remove the encoder.

9. Loosen the clamping screw on the coupling hub and slide the coupling hub off the encoder shaft.

3. Relieve the hydraulic oil pressure by venting the carrier hydraulic oil tank (refer to carrier service manual for proper procedure).

10. Thoroughly clean and inspect all parts.

4. Pull the measuring wheel assembly out of the frame.

The measuring wheel arm has a hole in it to install a support rod to hold the arm in the out position while servicing the encoder.

A

570-27

A Hole for Support Rod

5. Remove the encoder cover three socket head screws and washers and remove the cover and O-ring. The encoder cover has a M6 X 1.0 X .25" deep, tapped hole in the centre to assist removal.

Remove the foam vibration suppressor.

6. Tag, then disconnect the four wires from the encoder connector.

7.9

11. Replace parts as required.

Measuring Systems ENCODER INSTALLATION 1. Apply 1 drop of Loctite 668 to the inside bore of the coupling hub.

2. Install the coupling hub on the encoder with the coupling hub face flush with the encoder shaft.

Tigercat TH570 Harvesting Head MEASURING WHEEL SEAL, BEARING AND O-RING REPLACEMENT 1. Park the head upright with the exception of keeping the wheel arms open. Refer to PARKING THE HEAD in SECTION 1.

3. Torque the coupling hub clamp screw to 0.7 N-m (6 lbf-in).

2. Remove the key from the ignition switch and install a DO NOT START ENGINE sign on ignition key switch.

4. Coat the encoder body and shaft with dielectric grease.

3. Relieve the hydraulic oil pressure by venting the carrier hydraulic oil tank (refer to carrier service manual for proper procedure).

5. Coat the encoder mounting screws with anti-seize and torque to 5 N-m (48 lbf-in).

6. Pull the wiring harness through the strain relief and connect the four wires to the encoder as shown in the following illustration. Tighten the strain relief in the measuring wheel arm.

A

D

B

30190A R1

Encoder Pin Functions

C

7. Install the foam vibration suppressor.

8. Install the encoder access cover and O-ring. Apply Loctite 668 to the three capscrews and torque to 15 N-m (138 lbf-in).

9 . Remove the temporary rod used to support the measuring wheel assembly for servicing.

570-26

A B C D

Cover Plate Removed

Retainer Bolt Stud Hoses (3) Hydraulic Cylinder

4. Remove the cover plate on the right side of the head to access the measuring wheel cylinder.

5. Remove the retainer bolt from the cylinder rod end and lower the cylinder in the frame housing.

6. Remove the stud from the measuring wheel arm.

7.10

Tigercat TH570 Harvesting Head

Measuring Systems 9. Remove the snap ring (A) and retainer ring (B) and pull the bearing assembly (C) off the axle (D). Be careful to not damage the axle when removing the snap ring.

10. Remove the seal and bearings from the bearing housing.

A

11. Thoroughly clean all parts.

12. Obtain a new seal and O-rings. Do not reuse the old seal and O-rings.

570-27

A Hole for Support Rod

7. Pull the measuring wheel assembly out of the frame.

The measuring wheel arm has a hole in it to install a support rod to hold the arm in the out position while servicing the assembly.

TH570-037

Bearing Cover Removal

8. Remove the five socket head screws and lift the bearing cover off the left side of the wheel hub.

B

A C D TH570-035

7.11

Measuring Systems

Tigercat TH570 Harvesting Head

INSTALLATION C

7. Clean the threads and shank of the retainer bolt.

Lubricate shank and underside of the head with antiseize and Loctite 243 on threads.

B

8. Reposition the hydraulic cylinder over the stud and install the retainer bolt. Torque the retainer bolt to 270 N-m (200 lbf-ft).

A

9. Reinstall the cover plate on the access hole on right side of frame.

A

TH570-036

1. Install the bearings (A) in the bearing housing (B) using a suitable press and special tool shown in Section 12. Seat the bearings against the inner shoulder inside the housing (B).

A

2. Install the new seal (C) in the bearing housing (B) (note the orientation of the seal lips) being careful not to damage the seal during installation. Use special tool for seal installation as shown in Section 12. Seat the seal fully against the shoulder in the bearing housing.

D

B C

4 3 2

1

570-26

TH570-037

Bearing Cover Removal

A B C D

3. Install the bearing assembly (C) on the wheel arm (D). Place the retainer ring (B) on the wheel arm and install the snap ring (A).

4. Install the O-rings and apply anti-seize to the bearing cover screws and install cover on wheel arm housing. Torque screws to 15 N-m (138 lbf-in).

5. Lift the wheel arm and remove the support rod.

Lower the wheel arm back down into the frame.

6. Clean stud threads and apply Loctite 243 (blue) on stud threads. Reinstall the stud through the right side access hole. Torque the stud to 475 N-m (350 lbf-ft).

7.12

Cover Plate Removed

Retainer Bolt Stud Hoses (3) Hydraulic Cylinder

Tigercat TH570 Harvesting Head

Measuring Systems

MEASURING WHEEL REPLACEMENT 1. Park the head upright with the exception of keeping the wheel arms open. Refer to PARKING THE HEAD in SECTION 1.

5. Remove the lock nuts (A), washers (B) and socket head screws (C) and remove the wheel (D) from the hub.

2. Remove the key from the ignition switch and install a DO NOT START ENGINE sign on ignition key switch.

D

3. Relieve the hydraulic oil pressure by venting the carrier hydraulic oil tank (refer to carrier service manual for proper procedure).

4. Pull the measuring wheel assembly out of the frame.

The measuring wheel arm has a hole in it to install a support rod to hold the arm in the out position while servicing the assembly.

A

B

B C

TH570-028

6. Apply loctite 243 (blue) to threads of the socket head screws. Reverse removal procedure for installation of wheel (D). Torque the socket head screws (C) to 38 N-m (28 lbf-ft), install washers (B) and lock nuts (A) and torque to 61 N-m (45 lbf-ft).

A

7. Lift the wheel arm and remove the support rod.

Lower the wheel arm back down into the frame.

570-27

A Hole for Support Rod

7.13

Measuring Systems

Tigercat TH570 Harvesting Head

MEASURING WHEEL ARM REPLACEMENT 1. Park the head upright with the exception of keeping the knife arms and wheel arms open. Refer to PARKING THE HEAD in SECTION 1.

7. Pull the measuring wheel assembly out of the frame.

The measuring wheel arm has a hole in it to install a support rod to hold the arm in the out position while servicing the assembly.

2. Remove the key from the ignition switch and install a DO NOT START ENGINE sign on ignition key switch.

3. Relieve the hydraulic oil pressure by venting the carrier hydraulic oil tank (refer to carrier service manual for proper procedure).

A

4. Remove the cover plate on the right side of the head to access the measuring wheel cylinder.

570-27

A Hole for Support Rod A

D

8. Remove the encoder cover three socket head cap screws and washers and remove the cover and O-ring. The encoder cover has a M6 X 1.0 X .25" deep, tapped hole in the centre to assist removal.

Remove the foam vibration suppressor.

9. Tag, then disconnect the four wires from the encoder connector.

B C

10. Remove the two socket head cap screws for the wire harness guard and remove the guard from the measuring wheel arm. Remove the wire harness strain relief from the arm.

570-26

A B C D

A

Cover Plate Removed

Retainer Bolt Stud Hoses (3) Hydraulic Cylinder

C

5. Remove the retainer bolt from the cylinder rod end and lower the cylinder in the frame housing.

6. Remove the stud from the measuring wheel arm.

B TH570-059

A Wire Harness Guard B Measuring Wheel Arm C Strain Relief

11. Pull the wire harness out of the measuring wheel arm.

7.14

Tigercat TH570 Harvesting Head

Measuring Systems

12. Remove the three socket head screws and remove the encoder.

Note: The left knife arm (as view from the Operators seat) must be removed in order to access the pivot pin for the measuring wheel arm.

13. Remove the left knife cylinder rod end pin and left knife arm, support the cylinder after removing the knife. Refer to FRONT KNIFE ARM REPLACEMENT in SECTION 11 for detailed instructions for knife arm removal and installation.

16. Transfer the measuring wheel to the new arm. Refer to MEASURING WHEEL REPLACEMENT in this section.

17. Transfer the hub assembly to the new arm.

Replace bearings and seal if necessary. Refer to MEASURING WHEEL SEAL, BEARING AND O-RING REPLACEMENT in this section.

18. Install the encoder in the new arm. Coat the encoder mounting screws with anti-seize and torque to 5 N-m (48 lbf-in).

19. Install the new measuring wheel arm in the frame.

Use shims to position the arm in the frame to achieve 1/16" maximum total clearance in the frame.

20. Install pivot pin, tapered sleeves, and jam nuts.

21. Torque jam nuts to 350 N-m (258 lbf-ft). Maintain a gap of 1/8" between the frame and jam nut after installation.

A

22. Route the encoder wiring harness through the arm and install the strain relief in the arm. Connect wires to the encoder as tagged during removal.

B

23. Install the foam vibration suppressor.

24. Install the encoder access cover and O-ring. Apply Loctite 668 to the three cap screws and torque to 15 N-m (138 lbf-in).

25. Clean the measuring wheel cylinder stud threads and apply Loctite 243 (blue) on threads. Reinstall the stud through the right side access hole. Torque the stud to 475 N-m (350 lbf-ft)

570-16

A Remove Cylinder Pin B Remove Left Knife Arm

14. Remove the pivot pin jam nuts. Remove the tapered sleeves from the frame.

A

26. Clean the threads and shank of the retainer bolt.

Lubricate shank and underside of the head with antiseize and Loctite 243 on threads.

27. Reposition the hydraulic cylinder over the stud and install the retainer bolt. Torque the retainer bolt to 270 N-m (200 lbf-ft).

28. Reinstall the cover plate on the access hole on right side of frame.

29. Reinstall the left knife arm and cylinder. Refer to FRONT KNIFE ARM REPLACEMENT in SECTION 11 for detailed instructions for knife arm installation.

B

570-16

A Remove Pivot Pin Jam Nuts B Remove Tapered Sleeves in Frame

15. Support the measuring wheel arm and remove the pivot pin and shims. Remove the measuring wheel arm.

7.15

Measuring Systems

Tigercat TH570 Harvesting Head

MEASURING WHEEL HYDRAULIC PRESSURE TESTS WARNING The attachment will be operating during this procedure. Operator must ensure that no one is near the attachment during this procedure.

ADJUSTMENT PROCEDURE 1. Connect a pressure gauge to the "G-MW" test port (B).

2. Start engine and measuring system. Run engine at idle. Operate the head close switch.

3. Adjust pressure reducing valve (PRV-MW) (C) to 48 bar (695 psi).

The swing brake should be applied at all times during this procedure.

PRELIMINARY STEPS Complete the following before starting the hydraulic pressure test: 1. Get the hydraulic fluid up to operating temperature.

2. Park the head tilted down. Refer to PARKING THE HEAD in SECTION 1.

3. Remove the saw chain.

4. Disconnect all electrical connections on the main control valve. This will disable all cylinder and motor functions.

C B

A

570-18

570-14

A Tilt Lock Bolts (2) B G-MW– Measuring Wheel Test Port

C PRV-MW– Measuring Wheel Pressure Reducing Valve

7.16

Tigercat TH570 Harvesting Head

Measuring Systems

H

G F

E

I

J

A

B

D

C

A00205

A B C D E F G H I J

Extend Measuring Wheel Retract Measuring Wheel To Drain Manifold To Inlet Manifold (Tube) Pump Supply Pilot Supply Pilot Drain To Inlet Manifold P2 Port (Short Hose) Orifice Diameter 1.0 mm Orifice Diameter 3/32 in.

Measuring Wheel Hydraulic Schematic

Valve PRV-MW RV-MW Measuring Wheel Arm Accumulator

7.17

Pressure Setting 48 bar (696.2 psi) 80 bar (1160.3 psi) 45 bar (652.7 psi)

Measuring Systems

Tigercat TH570 Harvesting Head

MEASURING WHEEL ENCODER ELECTRICAL TEST 1. Park the head tilted down. Refer to PARKING THE HEAD in SECTION 1.

2. Open the cover on the back of the head to access the electrical box.

3. The encoder has four wires attached to it as follows: 220 - White.......................... Voltage Supply (2) G220 - Green.................................. Ground (3) 206 - Brown ................................Signal Out (5) 207 - Yellow.................................Signal Out (4) 4. Locate the encoder wires in the electrical box.

5.

With head power turned on and ENGINE OFF, use an analog voltmeter to check for power (24 volts) supply at wires 220 and G220. If power is not observed check for cause.

• •

Loose connection or broken wires Fuse Blown / Power turned Off

6. If power and ground are OK, connect voltmeter to wires G220 and 206. Rotate the encoder wheel slowly (1 rev/min) a pulse 0 volt to 24 volt should be observed on the meter every 1.44° of rotation.

A

7. Connect the voltmeter to wires G220 and 207.

Rotate the encoder wheel slowly (1 rev/min) a pulse 0 volt to 24 volt should be observed on the meter every 1.44° of rotation.

B

D5-002 D5-003 570-04 570-008

A Electrical Box Terminal Strip B D5CI12 Head Controller

7.18

Tigercat TH570 Harvesting Head

Measuring Systems

A

BF

BE

B

C

570-052

A Length Measuring Wheel Encoder B Electrical Box Terminal Strip

Measuring Wheel Electrical Schematic

C D5CI12 Head Controller

7.19

Measuring Systems

Tigercat TH570 Harvesting Head

DIAMETER ENCODER ELECTRICAL TEST 1. Park the head tilted down. Refer to PARKING THE HEAD in SECTION 1.

2. Open the cover on the back of the head to access the electrical box.

3. Each encoder has four wires attached to it as follows: LH Encoder Optional 218 - White................................ Voltage supply G218 - Green........................................Ground 201 - Yellow .....................................Signal Out 200 - Brown......................................Signal Out RH Encoder Optional 219 - White................................ Voltage supply G219 - Green........................................Ground 204 - Yellow .....................................Signal Out 205 - Brown......................................Signal Out 4. Locate the encoder wires in the electrical box.

5.

With head power turned on and ENGINE OFF, use an analog voltmeter to check for power (24 volts) supply at wires 218 and G218. If power is not observed check for cause.

• •

A

Loose connection or broken wires Fuse Blown / Power turned Off

6. If power and ground are OK, connect voltmeter to wires G218 and 200. Rotate the encoder wheel slowly (1 rev/min) a pulse 0 volt to 24 volt should be observed on the meter every 1.44° of rotation.

7. Connect the voltmeter to wires G218 and 201.

Rotate the encoder wheel slowly (1 rev/min) a pulse 0 volt to 24 volt should be observed on the meter every 1.44° of rotation.

8. Steps 5-7 apply to the LH encoder wire numbers, test the RH encoder similarly to steps 5-7 using the appropriate wires.

B

D5-002 D5-003 570-04 570-008

A Electrical Box Terminal Strip B D5CI12 Head Controller

7.20

Tigercat TH570 Harvesting Head

Measuring Systems

B

A

BF

BE

C

D

570-051

A Right Diameter Encoder B Left Diameter Encoder

Diameter Encoder Electrical Schematic

C Electrical Box Terminal Strip D D5CI12 Head Controller

7.21

Measuring Systems

Tigercat TH570 Harvesting Head

DIAMETER ENCODER REPLACEMENT B

A

C E1

D

F K

M K

L

E2

H

G

J

I

A A00216

A00209

A B C D E1 E2 F

Bolt Washer Access Cover Foam O-Ring O-Ring Screw

G H I J K L M

Encoder Coupling Coupling Hub Spider Insert Lower Housing Strain Relief Upper Housing

REMOVAL 1. Park the head upright. Refer to PARKING THE HEAD in SECTION 1.

11. Thoroughly clean and inspect all parts. Replace parts as required.

2. Put a line of paint across the lower and upper housings (K, M) to mark the position of the lower housing within the upper, which will assist with installation later.

3. Remove the 3 bolts (A) and washers (B) that attach the encoder access cover (C), foam (D), and O-ring (E1) to the lower housing (K).

4. Tag then disconnect the electrical wires from the encoder (G).

5. Loosen the strain relief (L) and pull the wiring out of the lower housing (K).

6. Remove the lower housing (K) out of the upper housing (M).

7. Remove the spider insert (J) from the coupling hub (I).

8. Remove the 3 screws (F) and lower the encoder (G) out of the lower housing (K).

9. Loosen the clamping screw on the coupling hub (I) and slide it off the encoder shaft (G).

10. Remove the second O-ring (E2) from the lower housing (K).

7.22

Tigercat TH570 Harvesting Head

Measuring Systems

INSTALLATION

M

J I

G E2

30190A R1

K

A00210

A

Encoder Pin Functions

D

C

E1

14. Connect the wires to the applicable terminals on the encoder (G).

L

15. Apply anti-seize to the 3 bolts (A).

1. Apply a light coat of dielectric grease to the encoder (G) body and connector terminals but not to its shaft.

2. Insert the encoder (G) into the lower housing (I).

3. Apply anti-seize grease to the body and threads of the 3 screws (F).

4. Install the 3 screws (F) to attach the encoder (G) to the lower housing (K). Tighten the screws to 1.0 N-m (9 lbf-in).

5. Apply Loctite 668 to the encoder shaft (G).

6. Apply medium strength Loctite to the threads of the coupling hub screw (I).

7. Install the screw to attach the coupling hub (I) to the encoder shaft (G) such that the hub body is flush with the top of the shaft.

8.

Torque the screw to 0.5 N-m (4.4 lbf-in).

9. Install the spider insert (J) on the coupling hub (I).

10. Apply anti-seize grease to the shaft of the lower housing (K), which will be put into the upper housing (M).

11. Install an O-ring (E2) on the lower housing (K).

12. Put the lower housing (K) back into the upper (M) in the marked position.

13. Put the wiring harness through the strain relief (L) then tighten it.

7.23

16. Install the 3 bolts (A) and washers (B) to attach the foam (D), an O-ring (E1), and the access cover (C) to the lower housing (K) and to attach the lower housing to the upper (M). Tighten the bolts to 32 N-m (24 lbf‑ft).

Measuring Systems

Tigercat TH570 Harvesting Head

DIAMETER ENCODER HOUSING BEARINGS AND SEAL REPLACEMENT

C E1

F L

M L F A00216

A

H

H

A

B

D

E2 G

N

P

O

Q

M K

J

I

H

TH575-128 A00211

A B C D E1 E2 F G H

Bolt Washer Access Cover Foam O-Ring O-Ring Lower Housing Retaining Ring Upper Housing

I J K L M N O P Q

Bearing Retaining Ring Seal Mounting Bracket Screw Screw Mating Hub Gear Shaft Strain Relief

REMOVAL 1. Park the head upright. Refer to PARKING THE HEAD in SECTION 1.

9. Remove the second O-ring (E2) from the lower housing (F).

2. Remove the 3 bolts (A) and washers (B) that attach the access cover (C), foam (D), and O-ring (E1) to the lower housing (F).

NOTE: For further disassembly of the lower housing (F), refer to DIAMETER ENCODING REPLACEMENT in this section.

3. Tag then disconnect the electrical wires from the encoder.

10. Remove the retaining ring (G) from the gear shaft (P) then remove the gear shaft out of the upper housing (H).

4. Loosen the strain relief (Q) and pull the wiring out of the lower housing (F).

5. Mark the position of the upper housing (H) in the mounting bracket (L) to assist with installation later.

6. Loosen the mounting bracket screw (M).

7. Using a flat screw driver or pry bar, pry open the mounting bracket (L) to free the upper housing (H).

Lower the encoder assembly of out the bracket.

11. Remove the seal (K) and retaining ring (J) then press the bearings (I) out of the upper housing (H).

12. If required, remove the screw (N) attaching the mating hub (O) to the gear shaft (P).

13. Thoroughly clean and inspect all parts. Replace parts as required.

8. Remove the lower housing (F) out of the upper (H).

7.24

Tigercat TH570 Harvesting Head

Measuring Systems 7. Fill the cavity between the seal and top bearing with grease.

INSTALLATION

8. If required, install screw (N) to assemble the gear shaft (P) and mating hub (O). Apply mediumstrength Loctite to the threads and torque to 13 N-m (9.5 lbf-ft).

M

J I

9. Insert the gear shaft (P) into the upper housing (H) and install the retaining ring (G) on the gear shaft.

G

10. Apply anti-seize grease to the shaft of the lower housing (F), which will be put into the upper housing (H).

E2 K

11. Install an O-ring (E2) on the lower housing (F)and assemble the upper housing (H) on the lower.

A00210

A

D

C

E1

12. Put the wiring harness through the strain relief (Q) then tighten it.

L

TH575-145

35-mm Bearing Installation Tool 32780B

1. Place one bearing (I) on the bearing installation tool.

2. Press the bearing (I) into the upper housing (H) evenly until it is fully seated. Use the assembly tool and a small hydraulic press or tap gently with a steel hammer. Lightly oiling the housing bearing bore will help with installation.

3. Place the second bearing (I) onto the assembly tool and repeat step 2 for the second bearing until it is seated against the first.

4. Using an appropriate set of retaining ring pliers, install the retaining ring (J), seating it fully into the housing groove.

30190A R1

Encoder Pin Functions

13. Connect the wires to the applicable connectors on the encoder.

14. Apply anti-seize to the 3 bolts (A).

15. Install the 3 bolts (A) and washers (B) to attach the foam (D), an O-ring (E1), and the access cover (C) to the lower housing (F) and to attach the lower housing to the upper (H).Tighten the screws to 32 N-m (24 lbf‑ft).

16. Install the encoder assembly back into the mounting bracket (L) in the same position it was removed.

17. Tighten the mounting bracket screw (M) to 15 N-m (132 lbf-in).

TH575-147

45-mm Seal Installation Tool 32773B

18. Check the encoder drive gear backlash. See procedure in this section.

5. Place the seal (K) on the seal installation tool with the seal lips facing the tool.

6. Press the seal (K) evenly into the upper housing (H) using the assembly tool and a small hydraulic press or light taps with a steel hammer. Ensure that the seal is fully seated and contained within the housing.

Lightly oiling the housing seal bore will help with installation.

7.25

Measuring Systems

Tigercat TH570 Harvesting Head

DIAMETER ENCODER DRIVE GEAR BACKLASH A B H

C D

5. With the front knives in the position that has the least amount of backlash, loosen the three hex head screws on the bottom of the encoder housing.

Then loosen the socket head screw on the mounting bracket and pry open slightly with a flat screw driver or pry bar. Put a wrench across 2 of the encoder housing bolts to hold the lower housing stationary, then rotate the upper housing either clockwise or counter clockwise to obtain zero backlash.

6. Once zero backlash has been observed, rotate the upper housing to increase backlash clearance to allow a slight gear movement.

E G A00212

A B C D E F G H

A

F

Backlash Front Knife Arm Drive Gear Diameter Encoder Pinion Gear Mounting Bracket Screw Mounting Bracket Encoder Housing Bolt Encoder Lower Housing Encoder Upper Housing

1. Park the head upright. Refer to PARKING THE HEAD in SECTION 1.

TH575-192

A Backlash

NOTE: The upper housing is not concentric with the pinion gear. As the upper housing is rotated the clearance between the gear teeth will increase in one direction and decrease in the opposite direction.

2. Remove the encoder drive gear cover.

3. Check the backlash between the diameter encoder pinion gear and the front knife arm drive gear with the front knives closed mid way and again with the front knives open.

4. Use a feeler gauge to determine which position has the least amount of backlash.

7. Tighten the three encoder housing screws to 32 N-m (24 lbf‑ft).

8. Tighten the mounting bracket screw to 15 N-m (132 lbf-in).

9. Recheck the backlash between the diameter encoder pinion gear and the front knife arm drive gear with the front knives closed and again with the front knives open to determine that the backlash clearance is maintained.

7.26

Tigercat TH570 Harvesting Head SECTION 8 – SAW Read and understand the entire contents of this manual, and all manuals for any attachments or accessories associated with this equipment, prior to operating or servicing.

CONTENTS – SECTION 8

ISSUE 1.1, NOVEMBER 2016

C

CHAIN LUBRICATION................................................................................................................................................ 8.5 CHAIN OIL RESERVOIR......................................................................................................................................... 8.4 SAW HOUSING........................................................................................................................................................ 8.5 CHAIN TENSIONING SAW HOUSING........................................................................................................................................................ 8.8

H

HYDRAULIC SCHEMATIC CHAIN TENSIONING............................................................................................................................................. 8.11 SAW BAR FEED..................................................................................................................................................... 8.13 SAW MOTOR.......................................................................................................................................................... 8.17

P

PRESSURE TESTS SAW CHAIN TENSION.......................................................................................................................................... 8.10

S

SAWS SAW BAR FEED..................................................................................................................................................... 8.12 SAW MOTOR.......................................................................................................................................................... 8.16 SAW SENSORS..................................................................................................................................................... 8.18 CHECK MAIN SAW HOME AND SAW POSITION SENSOR OPERATION................................................... 8.21 SAW FIND END SENSOR ADJUSTMENT........................................................................................................ 8.19 SAW FIND END SENSOR (FES)....................................................................................................................... 8.18 SAW HOME AND SAW POSITION.................................................................................................................... 8.20 SAW SENSOR INSTALLATION AND ADJUSTMENT...................................................................................... 8.20 SPEED TEST SAW BAR FEED..................................................................................................................................................... 8.14 SAW MOTOR.......................................................................................................................................................... 8.16

NOTE: Refer to Saw Manufacturer's service manuals for complete service and maintenance details.

Saw

Tigercat TH570 Harvesting Head

TH575-031 570-01

Saw

8.2

Tigercat TH570 Harvesting Head

Saw

The saw is a high speed chain saw, located in the saw housing on the bottom of the harvesting head. The saw is available in two options, a 0.404" pitch, or a 0.75" pitch.

The saw consists of the following components: A. Bar holder B. Saw stand and bearing C. Tensioning device D. Saw sensors E. Motor F. Feed out cylinder G. Chain lubricating pump G F E

D

A B C

TH575-032

Saw Components

8.3

Saw

Tigercat TH570 Harvesting Head

CHAIN LUBRICATION

Hoses and fittings allow the chain oil to flow from the reservoir through the filter to a common manifold. The chain saw pump draws the chain oil from the manifold when the saw bar is retracted. This provides lubricating oil to the chain during the cutting mode.

CHAIN OIL RESERVOIR A portion of the harvesting head frame is used as a reservoir for chain oil. The saw is equipped with a lubricating pump to draw oil from the reservoir and lubricate the chain. The reservoir capacity is approximately 14 litres (3.6 gal US).

B A

F B E

C D A A00206

C

A B C D E F

D

570-25

A B C D

Chain Oil Reservoir Components

Reservoir (Head Frame) Fill Cap/Breather Strainer Magnetic Drain Plug

There is a fill cap (B) used to fill the reservoir. The fill cap provides a breather for pressure and vacuum relief for the reservoir. Remove the cap to add chain oil to the reservoir.

There is also a strainer (C) (100 mesh screen) used to filter the oil as it is pumped to the chain from the reservoir.

Magnetic drain plug (D) in the side of the reservoir will collect metal particles that settle in the reservoir and provide a means of drainage and clean-out when draining the reservoir.

8.4

Chain Oil Reservoir Circuit

Reservoir (Head Frame) Fill Cap/Breather Strainer To Saw Unit 0.069 bar (1.0 psi) 0.034 bar (0.5 psi)

Tigercat TH570 Harvesting Head

Saw

CHAIN LUBRICATION SAW HOUSING The saw is equipped with a lubrication oil pump integrated with the feed out cylinder. The lubrication oil pump supplies oil via a piston operation to the saw chain during the entire feed out process.

The lubrication oil pump is fed with oil from the reservoir (A), through the inlet check valve (B) and to a reservoir in the piston rod (C).

When the saw bar (H) is fed out, the oil goes through the outlet check valve (D), via a hydraulic hose (E) to the swivel in the saw motor (F) and finally through the bar holder to the saw bar (H).

A

D

The purpose of the pressure relief valve (I) is to limit the pressure in the lubrication circuit to prevent damages on the swivel seals in the saw motor. The cracking pressure of the valve is between 30 to 50 bar (435 to 725 psi).

The supply of oil is proportional, which means that the volume of oil supplied depends on how much the saw bar is fed out.

By using different lubrication oil pumps, the amount of oil supplied to the saw bar can be varied depending on different lubrication requirements.

C

E

I

B

H

G

F

SC100-2.TIF

SAW HOUSING COMPONENTS A. Reservoir (head frame) B. Inlet check valve

D

B

A

C. Piston rod D. Outlet check valve J

E. Hydraulic hose F.

Swivel in saw motor

G. Bar holder

K

H. Saw bar I.

Pressure relief valve

J.

Saw bar feed

C

K. Saw bar retract

TH575-246

8.5

Saw

Tigercat TH570 Harvesting Head

CHAIN TENSIONING The machine hydraulic pumps supply oil to the main control valve located on the head frame.

Oil for the saw chain tensioning and bar feed circuit is supplied via a pressure reducing valve (PRV) (B) in the main control valve. The pressure can be read with test port (A).

The pressure reducing valve supplies oil to the saw manifold located in the saw housing. The saw manifold contains a pressure reducing valve (C) to reduce pressure for the chain tensioner. The pressure reducing valve is adjustable depending on which saw option is installed. The pressure can be read using the test port (D).

The pressure reducing valve is adjustable. Pressure settings vary depending on which saw option is installed.

A

B

570-18

570-14

A Test Port

Main Control Valve

B Pressure Reducing Valve

8.6

Tigercat TH570 Harvesting Head

Saw

L1

D 3 F C 1

D

F C 2

D2

A B 1 P2

SV

PRV

2

TH575-005

570-19

570-01

C Pressure Reducing Valve

Saw Manifold

D Test Port

8.7

SV

SV

C

Saw

Tigercat TH570 Harvesting Head

CHAIN TENSIONING SAW HOUSING When the machine is started the supply line (G) is pressurised. The pressure on the supply must be constant until the machine is shut down.

A reduced pressure acts on the pistons (A) and (B).

The piston (A) keeps the chain tight while the pistons (B) hold the bar holder to the tensioning device when sawing is in process.

The spring (D) delivers auxiliary tension during the first sawing operation after replacing the chain. The check valve (C) prevents the chain from becoming slack from external obstructions.

When replacing the saw chain, the chain tension system can be depressurized by pressing the pilot valve button (F).

F

B

E A

D

C A

D

E

G

F TH575-004 TH575-243

A B C D

B

Piston Piston Check Valve Spring

E Pilot Valve F Pilot Valve Button G Supply Line

8.8

C

Tigercat TH570 Harvesting Head

Saw

SAW CHAIN TENSION HYDRAULIC PRESSURE ADJUSTMENT WARNING The attachment will be operating during this procedure. Operator must ensure that no one is near the attachment during this procedure.

The swing brake should be applied at all times during this procedure.

PRELIMINARY STEPS Complete the following before starting the hydraulic pressure test: 1. Get the hydraulic oil up to operating temperature.

2. Park the head tilted down. Refer to PARKING THE HEAD in SECTION1.

3. Remove the saw chain.

4. Disconnect all electrical connections on the main control valve. This will disable all cylinder and motor functions.

A

570-06 570-14

A Tilt Lock Bolts

Main Control Valve

8.9

Saw

Tigercat TH570 Harvesting Head

SAW CHAIN TENSION AND BAR FEED PRESSURE ADJUSTMENT PROCEDURE 1. Connect a pressure gauge to the G-BAR gauge test port on the main control valve and L2 gauge test port on the saw manifold.

2. Start engine and measuring system. Run engine at idle. Activate pump 1.

3. Adjust the pressure reducing valve (PRV-BAR) on the main control valve to: 0.404" saw = 76 Bar (1100 psi) 0.75" saw = 69 Bar (1000 psi) 3. Adjust the pressure reducing valve (PRV) on the saw manifold to: 0.404" saw = 31 Bar (450 psi)

A

0.75" saw = 45 Bar (650 psi).

4. Shut off engine and remove gauges.

L1

3

D 1

C

F

A F C 2

A

D2

B

SV

B

SV

1 P2

SV

2

PRV

570-19

TH575-005

B

Saw Manifold

A L2 (Tension) Pressure Test Port B Tension Pressure Reducing Valve

570-06

Main Control Valve

A G-BAR Pressure Test Port B PRV-BAR Pressure Reducing Valve

Main Control Valve Pressure Reducing Valve:

Saw Manifold Pressure Reducing Valve: 0.404" saw = 31 Bar (450 psi) 0.75" saw = 45 Bar (650 psi)

0.404" saw = 76 Bar (1100 psi) 0.75" saw = 69 Bar (1000 psi)

8.10

Tigercat TH570 Harvesting Head

Saw

G

A

B

G

C

F

D E

H

I

K

J 570-06 570-19 A00207

A B C D E F G H I J K

Saw Unit Pressure Test Port Saw Manifold Saw Manifold Chain Tension PRV To Drain Manifold To Chain Lubrication Circuit To Saw Motor Circuit Pump Supply from Machine Main Control Valve Bar Feed PRV Main Control Valve End Section Pressure Test Port

Chain Tensioning and Bar Feed

Valve Saw Option Saw Manifold Chain Tension PRV (D) 0.404 0.75 Main Control Valve Bar Feed PRV (I) 0.404 0.75

8.11

Pressure 31 bar (450 psi) 45 bar (650 psi) 76 bar (1100 psi) 69 bar (1000 psi)

Saw

Tigercat TH570 Harvesting Head

SAW BAR FEED The machine hydraulic pumps supply oil to the main control valve located on the head frame.

Oil for the saw bar feed circuit is supplied via a pressure reducing valve (PRV-BAR) (A) in the main control valve.

Pressure settings vary depending on which saw option is installed. Test port (B) is used for reading the PRV pressure setting The PRV (A) supplies oil to the saw manifold located in the saw housing. The saw manifold contains a solenoid valve (C) to direct oil to the feed cylinder. When the solenoid valve is de-energized oil is ported to the base end of the cylinder to retract the saw bar. Energizing the solenoid valve directs oil to the rod end of the cylinder to feed the saw bar.

Flow control valves (D) located in the saw manifold are used to adjust the saw bar feed speed.

D L1

B D 3

F C 1

F C 2

D2

A B 1 P2

SV

2

PRV

C 570-19

570-18

TH575-005

C Solenoid Valve D Flow Control Valve

570-14

Main Control Valve

A PRV-BAR Pressure Reducing Valve B Test Port

8.12

Saw Manifold

SV

SV

A

Tigercat TH570 Harvesting Head

Saw

G A

B

G

C D

F E

H

I

K

J 570-06 570-19 A00207

A B C D E F G H I J K

Saw Unit Flow Control Valve Saw Manifold Solenoid Valve To Drain Manifold To Chain Lubrication Circuit To Saw Motor Circuit Pump Supply from Machine Main Control Valve Bar Feed PRV Main Control Valve End Section Pressure Test Port

Saw Bar Feed

Valve Saw Option Pressure Main Control Valve Bar Feed PRV (I) 0.404 76 bar (1100 psi) 0.75 69 bar (1000 psi)

8.13

Saw

Tigercat TH570 Harvesting Head

SAW BAR FEED SPEED ADJUSTMENT WARNING The attachment will be operating during this procedure. Operator must ensure that no one is near the attachment during this procedure.

The swing brake should be applied at all times during this procedure.

PRELIMINARY CHECKS Complete the following before starting the speed test: 1. Get the hydraulic oil up to operating temperature.

2. Park the head tilted down. Refer to PARKING THE HEAD in SECTION1.

3. Remove the saw chain.

4. Disconnect all electrical connections on the main control valve. This will disable all cylinder and motor functions.

A

570-14

A Tilt Lock Bolts

8.14

Tigercat TH570 Harvesting Head

Saw

ADJUSTMENT PROCEDURE 1. Connect main saw solenoid valve wire #194.

2. Start engine and measuring system. Run engine at high idle.

A

3. Operate main saw switch.

B C

4. Turn the flow control adjusting screw in and out slightly to determine what the adjustment directions are.

Note: The adjustment directions depends on the unit configuration.

5. Turn the screw in the correct direction to adjust the flow controls for the saw bar extend and retract to the specified speeds.

Note: Adjustments are very sensitive, a slight adjustment of screw will cause a significant speed change.

5. Disconnect main saw solenoid valve wire.

SPEED ADJUSTMENTS Retract = 1.0 seconds Extend = 1.5 seconds 570-19

Saw Manifold in Saw Housing

A Saw Bar Retract (Port A) B Saw Bar Extend (Port B) C Solenoid Wire #194

8.15

Saw

Tigercat TH570 Harvesting Head

SAW MOTOR

SAW MOTOR SPEED TEST

The saw motor is controlled by the main control valve.

A solenoid valve (A) (wire #170) on the main control valve directs pump flow to the saw motor.

The saw motor speed is adjustable with the spool compensator (B) in the main control valve.

WARNING The attachment will be operating during this procedure. Operator must ensure that no one is near the attachment during this procedure.

The swing brake should be applied at all times during this procedure.

PRELIMINARY CHECKS

A

Complete the following before starting the hydraulic pressure test: 1. Get the hydraulic oil up to operating temperature.

2. Park the head tilted down. Refer to PARKING THE HEAD in SECTION 1.

3. Remove the saw chain.

4. Disconnect all electrical connections on the main control valve. This will disable all cylinder and motor functions.

ADJUSTMENT PROCEDURE 1. Apply a piece of reflective tape to drive sprocket.

B

2. Connect saw motor solenoid wire #194 on the saw manifold.

570-04

3. Turn ON the engine and measuring system.

Note: Pump 2 saw setting may require adjustment.

Refer to D5 Measuring and Control System Service Manual, Machine Settings - (Page 1) to confirm settings for application.

4. Position engine throttle to Full. Operate main saw switch. Check saw sprocket speed with the hand held photo tachometer. Adjust the compensator screw to obtain RPM specified. Turn screw out to increase speed, turn screw in to decrease speed.

SPEED ADJUSTMENTS 0.404" saw (with 13 tooth sprocket) = 9200 rpm 0.404" saw (with 14 tooth sprocket) = 8500 rpm 0.404" saw (with 16 tooth sprocket) = 7400 rpm 0.75" saw (with 9 tooth sprocket) = 5800 rpm 0.75" saw (with 11 tooth sprocket) = 4500 rpm

570-04

Main Control Valve

A Solenoid Valve B Spool Compensator

8.16

Tigercat TH570 Harvesting Head

Saw

A

B

E

C D

K

J F G I

H 570-06 570-19 A00208

Saw Motor

A B C D E F G H I J K

Saw Unit Saw Manifold To Drain Manifold To Chain Tensioning and Saw Bar Feed Circuit To Chain Lubrication Circuit Pump Supply from Machine Solenoid Valve Main Control Valve End Section Saw Relief Valve Saw Orifice Spool Compensator

8.17

Motor Displacement (cc)

Saw Orifice (J) Diameter (mm)

Saw Relief Valve (I) Pressure Setting

19 25 30 40

0.438 0.469 0.469 0.531

320 bar (4640 psi) 280 bar (4060 psi) 320 bar (4640 psi) 320 bar (4640 psi)

Saw

Tigercat TH570 Harvesting Head

SAW SENSOR SAW FIND END SENSOR (FES) The find end sensor locates the end of the tree stem to start the length measuring.

A diffuse type sensor is mounted in the lower saw housing with adjustable sensitivity and indicator lights to set target sensing distance.

TH570-014 570-02

8.18

Tigercat TH570 Harvesting Head

Saw

SAW FIND END SENSOR AK209 ADJUSTMENT PRELIMINARY CHECKS Complete the following before starting the adjustment procedure: A

1. Park the head upright. Refer to PARKING THE HEAD in SECTION 1.

2. Remove the saw chain.

B

ADJUSTMENT PROCEDURE

C

1. Turn the ignition key to the run position.

2. Turn the pilot system ON. 3. Turn head power ON.

570-44

4. Turn the measuring system ON. 5. Place an object in front of the sensor at approximately 360mm to 400mm (14 1/8” to 15 3/4”).

FIND END SENSOR AK209 COMPONENTS A. Yellow indicator light. Status of received light beam.

B. Green indicator light. Power on.

6. Set the sensitivity adjuster (3) until the yellow light indicator (1) turns ON.

C. Sensitivity Adjustment

8.19

Saw

Tigercat TH570 Harvesting Head

SAW SENSORS

SAW SENSOR INSTALLATION AND ADJUSTMENT

SAW HOME AND SAW POSITION

PRELIMINARY CHECKS

The saw home and saw position sensors are located in the saw housings and both sensors are the same.

Ensure the following is completed before starting the adjustment procedure:

These sensors send signals/pulses to the measuring system to communicate the saw position which will allow other activities for the harvesting functions, i.e. feeding and sawing.

1. Park the head upright. Refer to PARKING THE HEAD in SECTION 1.

The saw home sensor (B) detects the cylinder rod (C), and the saw position sensor (A) detects a sensor wheel (D) engaged with the saw feed bearing.

2. Remove the saw chain.

SENSOR INSTALLATION 1. Ensure saw bar is completely home.

2. Install sensor hand tight. Do not use tools or Loctite on sensors.

3. Lightly screw the sensor in until contact then out 1/2 turn = 0.5 mm

A

A

B

C

B

D

575-516 575-512 575-511

A Saw Position Sensor B Saw Home Sensor

C Cylinder Rod D Sensor Wheel

8.20

Tigercat TH570 Harvesting Head

Saw

CHECK MAIN SAW HOME AND SAW POSITION SENSOR OPERATION 1

6. Select the head controller (CI12) (D).

D

Park the head upright. Refer to PARKING THE HEAD in SECTION 1.

2. Turn the ignition key to run, but do not start the engine.

3. Turn the measuring system on. From the main operating page, tap the menu button (A).

D5-177

7. To check the Main Saw Position sensor, have an assistant slowly move the main saw bar out with a gloved hand. View the Main Saw Position DIN on the display (E).

A D5-01

4. Tap the Diagnostics button (B).

B

E D5-177

The display should count up as the saw bar is moved out and continue to count up as the bar is moved in, and then reset to 0 when fully retracted.

The sensor count should be approximately 36 - 40 pulses from fully retracted to full out.

D5-62

5. Tap the System Status button (C).

If the sensor does not count at all, the sensor may be out of adjustment, defective, or have a failure in the wiring. Also, the Main Saw Home sensor may require adjustment or replacement, see step 7.

C

If the sensor count is incorrect (missing pulses), then it is likely the sensor is out of adjustment. The sensor has an LED to indicate the status. See SAW SENSOR INSTALLATION AND ADJUSTMENT in this section.

D5-172

8.21

Saw

Tigercat TH570 Harvesting Head

7. To check the Main Saw Home sensor, tap the A7 A12 tab (F) on the system status page.

F

G

D5-280

To check the Main Saw Home sensor, have an assistant slowly move the main saw bar out with a gloved hand. View the Main Saw Home DIN on the display (G). The display should show 1 when the saw bar is home, and 0 when the saw bar is out.

If the sensor does not indicate 1 or 0, the sensor may be out of adjustment, defective, or have a failure in the wiring.

The sensor has an LED to indicate the status. See SAW SENSOR INSTALLATION AND ADJUSTMENT in this section.

8.22

Tigercat TH570 Harvesting Head SECTION 9 – ROTATOR, LINK, AND TILT FRAME Read and understand the entire contents of this manual, and all manuals for any attachments or accessories associated with this equipment, prior to operating or servicing.

CONTENTS – SECTION 9

ISSUE 1.1, NOVEMBER 2016

L

LINK REPLACEMENT....................................................................................................................................................... 9.6

R

ROTATOR..................................................................................................................................................................... 9.2 BEARING REPLACEMENT..................................................................................................................................... 9.7 LINK REPLACEMENT............................................................................................................................................. 9.6 ROTATOR MOTOR AND PINION REPLACEMENT................................................................................................. 9.4

T

TILT FRAME................................................................................................................................................................. 9.3 TILT FRAME LOCK BOLTS..................................................................................................................................... 9.3

Rotator, Link, and Tilt Frame

Tigercat TH570 Harvesting Head

ROTATOR, LINK AND TILT FRAME A

B

C

D

570-13

A Link B Rotator

C Tilt Frame D Tilt Lock Bolt

ROTATOR The rotator consists of a rotator head, hydraulic motor and bearing. A pinion gear is attached to the hydraulic motor shaft, the gear teeth mate with teeth on the bearing.

When the hydraulic motor turns the pinion gear, the bearing turns resulting in head rotation. Stop blocks installed on the rotator head and tilt frame prevent continuous rotation and limit rotation to 310°.

D

A C B

570-17

A B C D

9.2

Rotator Head Stop Bearing Hydraulic Motor

Tigercat TH570 Harvesting Head

Rotator, Link, and Tilt Frame

LINK

TILT FRAME

The link connects the harvesting head to the carrier boom and provides two direction pivoting action (fore and aft and side to side) to maintain a vertical axis required for harvesting head positioning.

The tilt frame carries the harvesting head and provides a means of positioning the head when approaching trees through rotation and tilt angle. When a tree is cut, the frame can float, tilt down, or stay locked until the operator activates the tilt down or float (refer to CONTROL HANDLES in SECTION 2) providing delimbing assistance and lays the tree down for processing.

Two hydraulic cylinders, one on each side of the tilt frame, are used for the tilt function. Tilt Up, Tilt Down and Tilt Float positions are controlled by the hydraulic control valve.

TILT FRAME LOCK BOLTS The tilt frame is equipped with two service locking bolts.

The lock bolts, one on each side of the attachment, are used to lock the attachment in the tilt up or tilt down position when performing service such as lubrication or repairs. When not in use the lock bolts are stored in the lock bolt hole storage location on the attachment frame.

A TH575-066

TH575-113

B

570-12

Tilt Up

B

570-13

Tilt Down

A Tilt Lock Bolt Storage Location B Tilt Lock Bolt

TH575-043

9.3

Rotator, Link, and Tilt Frame ROTATOR MOTOR AND PINION REPLACEMENT DISASSEMBLY 1. Park the head tilted down with the tilt lock bolts (A) installed. Refer to PARKING THE HEAD in SECTION 1.

Tigercat TH570 Harvesting Head 4. Tag and disconnect the hoses (B) at the manifold attached to the rotate motor cover. Plug and cap the hose ends and fittings.

B A

570-17

5. Remove the 2 hoses (C) at the manifold and rotate motor. Plug and cap the hose ends and fittings.

570-40

Head Parked Tilted Down

2. Remove the key from the ignition switch and install a DO NOT START ENGINE sign on ignition key switch.

3. Relieve the hydraulic oil pressure by venting the carrier hydraulic oil tank (refer to carrier service manual for proper procedure). Apply a vacuum pressure to the tank to prevent oil loss.

6. Remove the M10 socket head cap screw (D) used to attach the manifold to the motor cover.

7. Remove the four cap screws (E) and washers (F).

Remove the motor cover (G).

8. Remove the four socket head screws (H) from the mounting flange of the rotate motor (I).

9. Use two pry bars to lift the motor (I) and pinion (L) straight out of the rotator housing.

NOTE: If required reach up through the access hole in the bottom of the tilt arm and use a punch and hammer to tap on the pinion cap screw to aid in removal.

10. Remove the cap screw (J) and washers (K) from the bottom of the motor drive shaft and remove the pinion (L) from the drive shaft.

11. Thoroughly clean and inspect the parts.

12. Check for any damage or wear. Replace parts as required.

9.4

Tigercat TH570 Harvesting Head

Rotator, Link, and Tilt Frame ASSEMBLY

E

1. Reverse removal procedure for installation and assembly.

F

ASSEMBLY TORQUES: Item E = Lubricate and torque to 271 N-m (200 lbf-ft) Item H = Lubricate and torque to 128 N-m (95 lbf-ft)

G

Item J = Loctite 242 and torque to 244-268 N-m (180198 lbf-ft)

H D

I

C

L K J

TH575-114

9.5

Rotator, Link, and Tilt Frame

Tigercat TH570 Harvesting Head

ROTATOR LINK REPLACEMENT

K

1. Park the head tilted down with the tilt lock bolts (A) installed. Refer to PARKING THE HEAD in SECTION 1.

J

I

L H

P

A

O

N

M

TH575-172

5. Loosen the set screws (H) on the threaded two piece collar (I) so that the collar is loose on the rotator pin (L). See Section 12 - SPECIAL TOOLS for a 3" spanner wrench for the two piece collar.

6. Remove the cap screw (O), washer (N) and spacer (M).

7. Remove the lower pin (L) using a slide hammer (P). See Section 12 - SPECIAL TOOLS for the slide hammer.

570-40

8. Remove the link.

Head Parked Tilted Down

2. Remove the key from the ignition switch and install a DO NOT START ENGINE sign on ignition key switch.

3. Remove the nut (C) and washer (D) on the boom pin. Remove the cap screw (E), washer (F), and spacer (G).

4. Remove the boom pin and shims (B).

B E

F

G C

D

ASSEMBLY 1. Reverse removal procedure for link installation.

NOTE: Shims (J and K) are used to obtain zero clearance when pin (L) is installed.

2. Install the pin (L) in the rotator housing with the link in place.

3. Install shims (J and K) to provide minimal clearance.

Install the threaded two piece collar (I) so that the collar is tight against the shims. Turn the collar on the threads using a spanner wrench to obtain zero clearance and tighten set screws to lock collar in place on the pin.

4. Install rotator pin cap screw (O) washer (N) and spacer (M).

570-15

5. Install boom pin. Install shims equally on each side of the link as required to achieve 1/32" clearance.

Torque the retaining nut to 610-678 N-m (450-500 lbf-ft).

9.6

Tigercat TH570 Harvesting Head

Rotator, Link, and Tilt Frame

ROTATOR BEARING REPLACEMENT

4. Start the engine and partially raise the boom and swing the upper to the right or left to clear the attachment. Lower the boom tip to the ground to support the weight of the boom. Engage the swing brake and stop engine.

1. Park the head tilted down with the tilt lock bolts (A) installed. Refer to PARKING THE HEAD in SECTION 1.

F

A

E

G H

TH575-141A

5. Remove the 24 cap screws (F) securing the inner race of the bearing (E) and, if equipped, the bearing spacer (G) to the tilt frame (H).

6. Remove the bearing (E).

570-40

Head Parked Tilted Down

ASSEMBLY 1. Install the 24 cap screws (F) to attach the inner race of the bearing (E) and, if equipped, the bearing spacer (G) to the tilt frame (H). Torque the cap screws to 108-119 N-m (80-88 lbf-ft).

2. Remove the key from the ignition switch and install a DO NOT START ENGINE sign on ignition key switch.

3. Remove the 16 cap screws (C) and washers (D) securing the rotator housing (B) to the outer race of the bearing (E).

2. Install the 16 cap screws (C) and washers (D) to attach the rotator housing (B) to the outer race of the bearing (E). Torque the cap screws to 170-183 N-m (125-135 lbf-ft).

B C

D

E

570-15

9.7

Rotator, Link, and Tilt Frame

Tigercat TH570 Harvesting Head

9.8

Tigercat TH570 Harvesting Head SECTION 10 – WHEEL ARMS AND WHEEL MOTORS Read and understand the entire contents of this manual, and all manuals for any attachments or accessories associated with this equipment, prior to operating or servicing.

CONTENTS – SECTION 10

ISSUE 1.1, NOVEMBER 2016

F

FEED WHEEL MOTOR INSTALLATION AND BLEEDING................................................................................... 10.13

H

HYDRAULIC SCHEMATIC LEFT FEED MOTOR............................................................................................................................................ 10.16 RIGHT FEED MOTOR......................................................................................................................................... 10.17

T

TAPER LOCK PINS................................................................................................................................................... 10.3

W

WHEEL ARM CYLINDER REPLACEMENT......................................................................................................... 10.10 WHEEL MOTOR REPLACEMENT......................................................................................................................... 10.11 WHEEL MOTOR SPEED TEST.............................................................................................................................. 10.14 WHEEL REPLACEMENT.......................................................................................................................................... 10.7

Wheel Arms and Wheel Motors

Tigercat TH570 Harvesting Head

WHEELS AND WHEEL ARMS

edge/serrated wheel, and the serrated straight bar Alpine wheel.

The thumbnail, and debarking tread bars are available as repair parts to repair feed wheels. Check the parts catalog for part numbers. Use standard MIG welding process.

B

A

TH570-006

570-01

Feed Wheel– Thumbnail

A Right Wheel Arm and Wheel B Left Wheel Arm and Wheel

The right and left wheel arms and wheels provide clamping, holding, feeding and debarking of the tree through the harvesting head.

A B C

TH570-005

Feed Wheel– Debarking Single Edge/Serrated

570-03

A Wheel Arm B Motor C Wheel

Each feed wheel is bolted to the hub of the hydraulic motor mounted on the wheel arm. The hydraulic motors drive the wheels to feed the trees through the harvesting head.

WHEELS There are various styles of feed wheels available.

Thumbnail wheel options are 22 × 20 mm, and 20 × 24 mm. Debarking wheel options are the single

TH570-040

Feed Wheel– Debarking Serrated

10.2

Tigercat TH570 Harvesting Head

Wheel Arms and Wheel Motors

TAPER LOCK PINS The right and left wheel arms are held in place in the main frame with taper lock pins.

Taper lock pins are also used to attach the wheel arm cylinders to the wheel arms.

TH575-180A

TH575-265 570-04

10.3

Wheel Arms and Wheel Motors

Tigercat TH570 Harvesting Head

PIN REMOVAL 1. Park the head upright with the tilt lock bolts installed.

Refer to PARKING THE HEAD in SECTION 1.

A

570-33

A Tilt Lock Bolt

Head Parked Upright

2. Remove the key from the ignition switch and install a DO NOT START ENGINE sign on ignition key switch.

3. Use an over head crane and a proper lifting device to support the wheel arm during taper lock pin removal.

4. Remove the nuts and washers on both sides of the pins. Install thread protector tool flush to the end of the pin. See Section 12 - SPECIAL TOOLS for pin removal tools. Use a dead blow hammer and tap on the thread protector to loosen the tapered bushings on the pin.

5. Remove the tapered bushings on the front and rear of the pin.

6. Remove the pin and at the same time remove the thrust washers on each side of the wheel arm.

7. Remove the pin assembly from the wheel arm cylinder, follow steps 3 to 5.

10.4

Tigercat TH570 Harvesting Head

Wheel Arms and Wheel Motors C

F

E

D

WHEEL ARM TAPER LOCK PIN INSTALLATION

A

1. Reverse removal procedure to install new pins.

2. Apply anti seize compound to pin surface and both sides of thrust washers.

3. Start pin in through the rear and install thrust washers and shims on both sides of wheel arm (same quantity as removed).

G

Install steel shims between the frame and thrust washer so that there is between 1/32" and 1/16" total clearance for each pivot.

H

4. Apply anti seize compound to tapered bushings surfaces and install in place on pin ends.

5. Apply Loctite #248 to nut threads.

6. Install washers and nuts hand tight to centre pin assembly so that gaps A and B are equal. Torque nuts equally (to keep pin assembly centred) to 475 N-m (350 lbf-ft).

7. Attach the wheel arm cylinder and reassemble the cylinder taper lock pin.

G

8.

Remove lifting device.

F E D

B

TH575-265

A B C D E F G H

Wheel Arm Taper Lock Pin

Gap Gap Pin Nut and Washer Tapered Bushing Frame Thrust Washer and Shims Wheel Arm and Bushing

D

570-04

10.5

Wheel Arms and Wheel Motors

Tigercat TH570 Harvesting Head C

A

D E F G H

2. Apply anti seize compound to pin surface and both sides of thrust washers.

3. Start pin in through the rear and install shims to centre cylinder rod eye in wheel arm lugs so that there is between 1/8" - 3/16" clearance for each pivot.

G

4. Apply anti seize compound to tapered bushings surfaces and install in place on pin ends.

F

5. Apply Loctite #248 to nut threads.

E D B

WHEEL ARM CYLINDER TAPER LOCK PIN INSTALLATION 1. Reverse removal procedure to install new pins.

6. Install washers and nuts hand tight to centre pin assembly so that gaps A and B are equal. Torque nuts equally (to keep pin assembly centred) to 340 N-m (250 lbf-ft).

7.

Remove lifting device.

TH575-180A

A B C D E F G H

Cylinder Taper Lock Pin

Gap Gap Pin Nut and Washer Tapered Bushing Wheel Arm Lug Thrust Washer and Shims Cylinder Rod Eye

D 570-04

10.6

Tigercat TH570 Harvesting Head

Wheel Arms and Wheel Motors

WHEEL REPLACEMENT REMOVAL

A

B

1. Park the head upright with the tilt lock bolts installed.

Refer to PARKING THE HEAD in SECTION 1.

A

C 570-01

A M20 Screw B Motor Guard Cover C Wheel Disc

6. Thoroughly clean all parts and surfaces.

7. Inspect the parts for wear or damage and replace any defective parts as required.

570-33

A Tilt Lock Bolt

Head Parked Upright

2. Remove the key from the ignition switch and install a DO NOT START ENGINE sign on ignition key switch.

NOTE: If wheels are to be rotated, perform steps 1 to 6 for the opposite wheel as well. When rotating the wheel, the wheel disc is removed from the front and installed on the rear. See WHEEL DISC INSTALLATION for bolt torques.

INSTALLATION 1. Install the wheel on the motor in the reverse order as removed.

A

2. Apply Loctite 243 (blue) to the threads of the M20 cap screws and torque the 8 cap screws in a crisscross pattern equally to 650 N-m (480 lbf-ft).

3. Install the rear cover plates and torque the 10 M12 cap screws to 110 N-m (80 lbf-ft).

A

B

570-04

C

D

A Rear Cover Plates

3. Remove the cover plates on the rear of the wheel to be removed.

4. Remove the eight M20 screws and washers and remove the motor guard. Use a suitable lifting device to support the wheel.

5. Lift the wheel off the motor.

10.7

TH575-149

A B C D

Wheel Cover Plates Washer M12 Screw

Wheel Rear Covers

Wheel Arms and Wheel Motors

Tigercat TH570 Harvesting Head

WHEEL DISC INSTALLATION

A

A

570-01

A Wheel Disc

BOLT TORQUE SEQUENCE 1. Torque all M12 and M16 screws to 68 N-m (50 lbf-ft).

2. Torque M16 screws as shown in sequence A to 270 N-m (200 lbf-ft).

3. Torque M12 screws as shown in sequence B to 110 N-m (80 lbf-ft).

10.8

FIRST USED WHERE USED SUPERSEDES

Tigercat TH570 Harvesting Head

3

Wheel Arms and Wheel Motors

1 5

7

E D

10

A

9

B C

6

8 2

TH575-175

4

A

A00214

T igerc at

Wheel Disc Mounting– Torque Sequence A

A 1.5-in. Spacer B Lock Nut C M16 Screw

R

D Wheel Rim E Wheel Disc

THE INFORMATION, DATA, AND DRAWINGS EMBODIED IN THIS DOCUMENT ARE STRIC NOT BE DISCLOSED TO THIRD PARTIES WITHOUT THE PRIOR WRITTEN CONSENT OF

AHM

1 5

3

FIRST USED WHERE USED SUPERSEDES

9

7

A A

A

T igerc at

R

Tigercat Industries Inc.

THE INFORMATION, DATA, AND DRAWINGS EMBODIED IN THIS DOCUMENT ARE STRICTLY CONFIDENTIAL AND SHALL NOT BE DISCLOSED TO THIRD PARTIES WITHOUT THE PRIOR WRITTEN CONSENT OF TIGERCAT INDUSTRIES INC.

AHM

D 8

10

C 6

4

TH575-176

2

A

A00214

Mounting– Torque Sequence B igeDisc rc at TWheel C M12 Screw R

A Wheel Disc B Wheel Rim

Tigercat Industries Inc.

THE INFORMATION, DATA, AND DRAWINGS EMBODIED IN THIS DOCUMENT ARE STRICTLY CONFIDENTIAL AND SHALL NOT BE DISCLOSED TO THIRD PARTIES WITHOUT THE PRIOR WRITTEN CONSENT OF TIGERCAT INDUSTRIES INC.

D Lock Nut

AHM

10.9

Tigercat

B

Wheel Arms and Wheel Motors

Tigercat TH570 Harvesting Head

WHEEL ARM CYLINDER REPLACEMENT REMOVAL 1. Park the head upright with the tilt lock bolts installed.

Refer to PARKING THE HEAD in SECTION 1.

A

4. Remove rear cover and lower side covers.

Disconnect the hydraulic hoses on the cylinder being removed. Plug and cap hose ends and cylinder ports.

5. Remove the taper lock pin from the rod end of the cylinder as outlined earlier in this section.

6. Remove the taper lock pin from the base end of the cylinder.

7. Remove the hydraulic cylinder.

8. Thoroughly clean all parts and surfaces.

9. Inspect the parts for wear or damage and replace any defective parts as required.

INSTALLATION 1. Install cylinder in reverse order as removed.

2. Install taper lock pins on the rod end and base end of the cylinder as outlined earlier in this section.

3. Install washers and nuts. Torque nuts to 340 N-m (250 lbf-ft).

570-33

A Tilt Lock Bolt

Head Parked Upright

2. Remove the key from the ignition switch and install a DO NOT START ENGINE sign on ignition key switch.

A

3. Relieve the hydraulic oil pressure by venting the carrier hydraulic oil tank (refer to carrier service manual for proper procedure). Apply a vacuum pressure to the tank to prevent oil loss.

NOTE: Wheel arms closed could trap pressure in the accumulator.

C 570-04

A Wheel Arm Cylinders B Base End Taper Lock Pins C Rod End Taper Lock Pins

10.10

B

Tigercat TH570 Harvesting Head

Wheel Arms and Wheel Motors

FEED WHEEL MOTOR REPLACEMENT REMOVAL 1. Park the head upright with the tilt lock bolts installed.

Refer to PARKING THE HEAD in SECTION 1.

B

A

C

570-41

B Screw C Upper Cover Plate

5. Remove three screws (B), washers, and upper cover plate (C) on the rear of the wheel arm.

6. Thoroughly clean all debris from the wheel arm cavity prior to removing any hoses.

570-02

A Tilt Lock Bolt

Head Parked Upright G

2. Remove the key from the ignition switch and install a DO NOT START ENGINE sign on ignition key switch.

F

3. Relieve the hydraulic oil pressure by venting the carrier hydraulic oil tank (refer to carrier service manual for proper procedure). Apply a vacuum pressure to the tank to prevent oil loss.

4. Remove the wheel as outlined in this section.

E

D

570-42

D E F G

Feed Wheel Motor Reverse Drive Hose Case Drain Hose Screw

7. Disconnect the case drain hose (F) and the forward and reverse drive hoses (E) from motor (D). See Section 12 - SPECIAL TOOLS for a 5/16" hex socket, 6" long, 3/8" drive, to assist with drive hose removal and installation.

8. Remove two screws (G) and remove the lower guard.

10.11

Wheel Arms and Wheel Motors 9. Disconnect the two grease line hoses from the drive motor.

10. Use an overhead crane and a proper lifting device to support the weight of the wheel motor.

11. Remove 2 plugs (H).

12. Remove the ten M16 socket head screws (K), washers (J), and spacers (I).

Tigercat TH570 Harvesting Head 14. Note the orientation of the manifolds (L and M), the word TOP on the manifolds, and that the lower manifold is angled. Remove manifolds from the motor and transfer to the new feed motor using new O-rings on upper and lower manifold surfaces.

Torque manifold socket head screws to 47 N-m (35 lbf-ft).

13. Lift the motor off the wheel arm taking care not to damage the grease and case drain port adapters.

L

M 575-570

H

570-43

L Upper Manifold M Lower Manifold

H Plug

I J K 575-536

I Spacer J Washer K M16 Screw

10.12

Tigercat TH570 Harvesting Head

Wheel Arms and Wheel Motors

FEED WHEEL MOTOR INSTALLATION AND BLEEDING INSTALLATION

MOTOR HYDRAULIC BLEEDING 1. Start engine. Tilt head up, and install tilt lock bolts.

Shut off engine.

2. Rotate feed wheel to position the bleeder screws at the top.

1. Install the feed wheel motor to the wheel arm assembly with the case drain fitting facing to the outside of the wheel arm and the two motor lube fittings aligned to the clearance holes in the arm.

The motor pilot must sit in the arm pilot bore.

3. Loosen the bleeder screws on both motors.

2. Lubricate the fasteners using medium strength Loctite stick #248 (or equivalent) and torque as per the bolt torque sequence as follows:

4. Start engine and operate at idle. Do not engage feed.

5. Let air purge fully from bleeder screws.

6. Shut off engine and tighten bleeder screws.

Step 1 = 108 N-m (80 lbf-ft)

MOTOR BREAK IN PROCEDURE

Step 2 = 217 N-m (160 lbf-ft)

1. Start engine and measuring system. Tilt head forward to tilt float position.

Step 3 = 325 N-m (240 lbf-ft) 3. Install lower guard, case drain hose and forward/ reverse drive hoses. Torque the split flange socket head screws to 47 N-m (35 lbf-ft). Install upper hose cover.

2. With engine at idle, operate slow forward feed for 2 minutes then slow reverse feed for 2 minutes.

3. For the first few hours of operation avoid excessive speed, extreme loads, and continuous running.

DO NOT operate fast feed with motors unloaded.

Loading is required for proper break-in.

4. Monitor for signs of noise or excessive temperature and stop and correct problems before damage occurs.

F

A

575-537

B A

C D E

TH575-254

Torque Sequence 575-536

A Motor Seal Lubrication Fitting B Case Drain Fitting C Spacer

D Washer E M16 Screw F Bleeder Screw

10.13

Wheel Arms and Wheel Motors

Tigercat TH570 Harvesting Head

WHEEL MOTOR SPEED TEST WARNING The attachment will be operating during this procedure. Operator must ensure that no one is near the attachment during this procedure.

The swing brake should be applied at all times during this procedure.

PRELIMINARY STEPS Complete the following before starting the speed test: 1. Get the hydraulic oil up to operating temperature.

2. Park the head tilted down with the tilt lock bolts installed. Refer to PARKING THE HEAD in SECTION 1.

3. Remove the saw chain.

4. Disconnect all electrical connections on the main control valve except for the feed wheel motor solenoid electrical connections. This will disable all other cylinder and motor functions.

A

570-17

A Tilt Lock Bolts

10.14

Tigercat TH570 Harvesting Head

Wheel Arms and Wheel Motors

ADJUSTMENT PROCEDURE 1. Attach a piece of reflective tape to the face of each of the feed wheels.

2. Start engine and measuring system.

Note: Pump 2 feed setting may require adjustment.

Refer to D5 Measuring and Control System Service Manual, Machine Settings - (Page 1 and 2) to confirm settings for application.

3. Position engine throttle to Full. Operate the feed forward function.

4. Have an assistant use an electronic photoelectric tachometer to measure the speed of both the right and left feed wheels.

A

5. Maximum wheel speeds should be: 800cc motor = 215 rpm (forward/reverse) 900cc motor = 195 rpm (forward/reverse) 1000cc motor = 180 rpm (forward/reverse) 6. If motor speeds require adjustment, use the control valve spool stop to adjust the speed. Turn the screw in to increase speed or out to decrease speed.

7. Repeat steps 3 and 4 for feed reverse speed check.

Ensure right and left wheel speeds are equal within 2 rpm.

8. Discontinue operation of function, set throttle to low idle and shut engine off.

NOTE: Do not operate feed motors at fast feed for more than a few seconds for testing. Excessive running at high speeds without load will cause motor damage.

B

C

D

TH570-009A

A Left Feed Forward B Right Feed Forward

Main Control Valve

C Left Feed Reverse D Right Feed Reverse

10.15

Wheel Arms and Wheel Motors

Tigercat TH570 Harvesting Head A

B

C

D E

F G

570-05 TH570-019

A B C D

Case Drain Feed Reverse Solenoid Feed Forward Solenoid Pilot Drain

Left Feed Motor

E Pilot Supply F Tank Return G Pump Supply

10.16

Tigercat TH570 Harvesting Head

Wheel Arms and Wheel Motors A

B

C

D E

F G

570-05 TH570-020

A B C D

Case Drain Feed Reverse Solenoid Feed Forward Solenoid Pilot Drain

Right Feed Motor

E Pilot Supply F Tank Return G Pump Supply

10.17

Wheel Arms and Wheel Motors

Tigercat TH570 Harvesting Head

10.18

Tigercat TH570 Harvesting Head SECTION 11 – KNIFE ARMS AND KNIVES Read and understand the entire contents of this manual, and all manuals for any attachments or accessories associated with this equipment, prior to operating or servicing.

CONTENTS – SECTION 11

ISSUE 1.1, NOVEMBER 2016

B

BLADE REPLACEMENT BACK KNIFE........................................................................................................................................................... 11.9 FRONT FLOATING KNIFE...................................................................................................................................11.11 FRONT KNIFE...................................................................................................................................................... 11.10 WELDING PROCEDURE...................................................................................................................................... 11.8

F

FIXED KNIFE REPLACEMENT.............................................................................................................................. 11.12 FRONT KNIFE REPLACEMENT............................................................................................................................. 11.2

H

HYDRAULIC SCHEMATIC BACK KNIFE ARM................................................................................................................................................ 11.24 FRONT KNIFE ARMS.......................................................................................................................................... 11.20 KNIFE ARMS PRESSURE CONTROL....................................................................................................11.21, 11.25

K

KNIFE ARM HYDRAULIC CYLINDER..................................................................................................................... 11.4 KNIFE ARMS AND KNIVES...................................................................................................................................... 11.2 KNIFE CUTTING EDGE............................................................................................................................................ 11.8 KNIFE CUTTING EDGE ANGLES BACK ARM KNIFE................................................................................................................................................ 11.16 BACK FIXED KNIFE............................................................................................................................................ 11.17 FRONT ARM KNIFE............................................................................................................................................. 11.15 FRONT FIXED KNIFE.......................................................................................................................................... 11.13 FRONT FLOATING KNIFE.................................................................................................................................. 11.14

P

PRESSURE TESTS BACK KNIFE......................................................................................................................................................... 11.22 FRONT KNIVES................................................................................................................................................... 11.18

R

REBUILDING CUTTING EDGE................................................................................................................................ 11.8

T

TAPER LOCK PINS................................................................................................................................................... 11.3 TREE GUIDE REPLACEMENT.............................................................................................................................. 11.12 WELDING PROCEDURE.................................................................................................................................... 11.12

Knife Arms and Knives

Tigercat TH570 Harvesting Head FRONT KNIFE ARM REPLACEMENT

KNIFE ARMS AND KNIVES

REMOVAL

DANGER

A

Do not service the head from the front. Always service from the side or the rear. Failure to follow these safety precautions can lead to risk of serious injury!

B C C

D

1. Park the head upright with both tilt lock bolts installed. Refer to PARKING THE HEAD in SECTION 1.

A

E

F

570-02

Knife arms and knives provide clamping components to hold the tree as well as delimbing devices to remove tree limbs.

A. Front Fixed Knife or Front Floating Knife B. Front Tree Guide C. Front Knife Arms D. Mid Tree Guide E. Back Knife Arm F.

Fixed Back Knife

The front fixed knife, or a front floating knife is bolted to the harvester frame.

570-02

A Tilt Lock Bolt

Head Parked Upright

The back fixed knife is welded to the harvester frame.

2. Remove the key from the ignition switch and install a DO NOT START ENGINE sign on ignition key switch.

The front and back knife arms are connected to the frame through taper lock pins and are hydraulically opened and closed.

3. Relieve the hydraulic oil pressure by venting the carrier hydraulic oil tank (refer to carrier service manual for proper procedure).

Replaceable wear plates are mounted on the upper and mid sections of the main frame to provide a tree guide during the delimbing process. A procedure for wear plate replacing is detailed later in this section.

11.2

Tigercat TH570 Harvesting Head

Knife Arms and Knives

TAPER LOCK PINS

INSTALLATION 1. Reverse removal procedure to install new pins.

C

A

2. Apply anti seize compound to pin (C) surface and both sides of thrust washers.

D E

3. Start pin in through the rear and install thrust washers on both sides of front knife arm (same quantity as removed).

F G H

The thrust washers provide zero clearance when front knife arm is installed.

4. Apply anti seize compound to tapered bushing (E) surfaces and install in place on pin ends.

G

5. Apply loctite # 248 to threads of taper lock pin (C).

F

A

E D B

TH575-180A

A B C D E F G H

Cylinder Taper Lock Pin

Gap Gap Pin Nut and Washer Tapered Bushing Knife Arm / Main Frame Thrust Washer Location (if applicable) Pivoting Component with Bushing

B TH575-180A

6. Install washers and nuts (D) hand tight to centre pin assembly so that gaps A and B are equal. Torque nuts equally (to keep pin assembly centred) to 340 N-m (250 lbf-ft).

The front knife arms are held in place in the main frame with taper lock pins.

Taper lock pins are also used to attach the hydraulic cylinders to the front knife arms.

PIN REMOVAL 1. Use an over head crane and a proper lifting device to support the front knife arms during taper lock pin removal.

2. Install thread protector tool. Remove the nuts (2) on both sides of the pins (1). Use a dead blow hammer and tap on the nuts to loosen the tapered bushings on the pin.

3. Remove the nuts (2), washers and tapered bushings (3) on the top and bottom of the pin.

4. Lower the pin and at the same time remove the thrust washers on each side of the front knife arm being removed.

5. Remove the pin assembly from the front knife arm cylinder (6), follow steps 2 to 4.

11.3

7.

Remove lifting device.

Knife Arms and Knives

Tigercat TH570 Harvesting Head

KNIFE ARM HYDRAULIC CYLINDER

INSTALLATION

REMOVAL

1. Reverse removal procedure for installation.

A

DANGER Do not service the head from the front. Always service from the side or the rear. Failure to follow these safety precautions can lead to risk of serious injury!

C D E F G H

1. Park the head upright with both tilt lock bolts installed. Refer to PARKING THE HEAD in SECTION 1.

G A

F E D B

B

TH575-180A

2. Apply anti seize compound to pin (C) surface .

3. Install cylinder (H) in the knife arm and frame lugs (F) and insert pins through lug and cylinder pin bores.

4. Apply anti seize compound to tapered bushing (E) surfaces and install in place on pin ends.

5. Apply loctite # 248 to threads of taper lock pins (C).

570-02

Head Parked Upright

A Tilt Lock Bolt B Front Knife Cylinders

6. Install washers and nuts (D) hand tight to centre pin assembly so that gaps A and B are equal. Torque nuts equally (to keep pin assembly centred) to 340 N-m (250 lbf-ft).

2. Remove the key from the ignition switch and install a DO NOT START ENGINE sign on ignition key switch.

3. Relieve the hydraulic oil pressure by venting the carrier hydraulic oil tank (refer to carrier service manual for proper procedure).

4. Tag, then disconnect the hydraulic hoses. Plug and cap hose ends and fittings.

5. Remove the taper lock pins from both rod and base end of the cylinder. See procedure earlier in this section.

6. Lift the cylinder out of the head.

7. Thoroughly clean and inspect the parts.

8. Repair or replace any worn or damaged parts.

11.4

Tigercat TH570 Harvesting Head

Knife Arms and Knives

FRONT FIXED KNIFE REPLACEMENT

DANGER Do not service the head from the front. Always service from the side or the rear. Failure to follow these safety precautions can lead to risk of serious injury!

1. Park the head tilted down with both tilt lock bolts installed. Refer to PARKING THE HEAD in SECTION 1.

A 570-13

A Front Fixed Knife

The front fixed knife is bolted to a spacer plate which is attached to the frame just above the front knife arms.

A

REMOVAL 1. Remove the five cap screws, washers and nuts.

2. Lift the front fixed knife off the head.

INSTALLATION 1. Reverse removal procedure for knife installation.

2. Clean the cap screw threads and apply Loctite # 243 to the threads.

3. Torque the five cap screws to 540 N-m (400 lbf-ft).

570-13

Head Parked and Tilted Down

A Tilt Lock Bolt

2. Remove the key from the ignition switch and install a DO NOT START ENGINE sign on ignition key switch.

3. Relieve the hydraulic oil pressure by venting the carrier hydraulic oil tank (refer to carrier service manual for proper procedure).

11.5

Knife Arms and Knives FRONT FLOATING KNIFE The front floating knife slides under guide plates which are fastened to the frame above the front knife arms.

Shims placed under the guide plates allow the knife to slide freely against compression springs housed in the guide plates. Two pins that fasten to the knife and protrude through the top frame plate limit the amount of knife travel.

Tigercat TH570 Harvesting Head The pins are also used with locks to hold the knife in position during shipping. These locks are removed and stored in the machine cab during harvesting operations.

E

A B

C

D A00217

570-37

A Guide Plate B Shim C Pin

D Pin Lock E Compression Spring

11.6

Tigercat TH570 Harvesting Head

Knife Arms and Knives

FRONT FLOATING KNIFE

REMOVAL

REPLACEMENT

1. To remove only the knife (J), remove four bolts (L) and two pins(K). Slide knife forward being careful of the spring preload.

DANGER

2. To service the complete assembly, remove the M16 set screws (A) from the guide plates (H).

Do not service the head from the front. Always service from the side or the rear. Failure to follow these safety precautions can lead to risk of serious injury!

3. Remove the spring seats (B) compression springs (C) and spring inserts (D) from the guide plates (H).

4. Remove the eight M16 socket head cap screws (E).

1. Park the head tilted down with both tilt lock bolts installed. Refer to PARKING THE HEAD in SECTION 1.

5. Remove the two M20 socket head cap screws (F) and lock nuts (G).

2. Remove the key from the ignition switch and install a DO NOT START ENGINE sign on ignition key switch.

6. Remove the guide plates (H) and shims (I).

3. Relieve the hydraulic oil pressure by venting the carrier hydraulic oil tank (refer to carrier service manual for proper procedure).

INSTALLATION

7. Remove the knife (J) from the head.

1. Clean the M16 socket head cap screw (E) and apply anti-seize to the threads.

2. Clean the M20 socket head cap screws (F) and apply anti-seize to the threads.

E

3. Install knife (J) guide plates (H) and shims (I) to provide .006" to .010" clearance and smooth sliding of the knife.

B A

F

H C

4. Torque the eight M16 socket head cap screws (E) to 270 N-m (200 lbf-ft).

I L

D

K

5. Torque the two M20 lock nuts (G) to 540 N-m (400 lbf-ft).

J

6. Apply anti-seize to spring seats (B), springs (C), spring inserts (D), and set screws (A).

7.

G

KNIFE ADJUSTMENT 1. Remove shims to reduce up and down movement.

A00218

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

Install set screws (A) to attach spring seats (B), springs (C), and spring inserts (D) to guide plates (H). Thread in the screws until end is flush with the back of guide plates.

2. Loosen bolts (E) and (F) and push guide plates (H) in for side to side movement.

M16 Set Screw Spring Seat Compression Spring Spring Insert M16 Socket Head Cap Screw M20 Socket Head Cap Screw Lock Nut Guide Plate Shim Knife Pin Bolt

To lock the floating knife, install locks and bolts.

There are two positions for the locks, align to suit application.

11.7

Knife Arms and Knives

Tigercat TH570 Harvesting Head

KNIFE CUTTING EDGES

WELDING PROCEDURE

The knife cutting edges must be kept sharp at all times for proper delimbing operation. The illustrations on the following pages show the cutting edge angle for the inner and outer edge of the knives.

1. Follow preheat and interpass temperatures on illustrations. Use GMAW weld process.

Sharpen the cutting edges using a file and finish by honing edges using an oil stone. Do not use a high speed grinder due to high localized heating will reduce knife edge hardness.

3. Maintain preheat and interpass temperature from start to finish.

REBUILDING CUTTING EDGE Cutting edges can be rebuilt using weld bead and then grinding the surface down to dimensions shown in the appropriate illustration. Use appropriate weld techniques for high strength quenched and tempered plate to minimize heating and avoid cracking or loss of blade hardness.

KNIFE BLADE REPLACEMENT Knife blades on the knife arms are available as replacement parts. The knife arm part number is stamped in the arm tube. Refer to the Parts Catalog for the replacement blade part numbers.

2. Use an AWS A5.28, class E110C-G-H4 electrode or equivalent. Electrode is to be thoroughly dried.

4. Blend welds for smooth transitions.

5. Peen welds after each pass to relieve residual stresses in the weld areas. Weld in short passes using a back - step technique and alternate welds to minimize distortion. Do not exceed 260ºC (500ºF) knife edge temperature or loss of hardness will result.

6. Part is to be slow cooled immediately after welding using suitable means. Cover part with sand or heat blanket for 4 hours minimum.

A

570-09

A Knife Arm Part Number

Use the replacement blade as a template for where to cut the old blade, then arc-gouge or grind to cut the welds all along the rib. Grind the edges of the rib to make 7.9 mm (5/16") minimum chamfer top and bottom for a weld prep.

Replace knife blades using the outlined welding procedures.

11.8

Tigercat TH570 Harvesting Head

Knife Arms and Knives

B B

A A

C C

B B

C

A A

C

E

1/2 1/2

3/8 3/8

D

1/2 1/2

3/8 3/8

A-A A-A

B-B B-B

C-C C-C

570-02 TH570-043 TH570-044 TH570-045 TH570-046

1/2 1/2 1/2 X 3/4 x 3/4 1/2

Back Knife Replacement Weld Details

D Preheat and Interpass 198 – 226°C (390 – 440°F)

E Preheat and Interpass 150°C (300°F)

11.9

Knife Arms and Knives

Tigercat TH570 Harvesting Head

1/2 1/2

1/2 3/8 3/8 3/8 3/8 3/8 3/8 1/2

3/8 3/8 3/8 3/8 GG

1/2 1/2

G

G

E

C

A-A A-A

B-B B-B D

B B

C E A A

B B

A A

570-02 TH570-047 TH570-048 TH570-049

D Preheat and Interpass 150°C (300°F)

Front Knife Replacement Weld Details

11.10

Tigercat TH570 Harvesting Head

Knife Arms and Knives A

B TH570-053 TH570-054 TH570-055

Front Floating Knife Edge Removal

A Cut Weld Between Weld and Support

B

Grind Cut Surfaces Smooth

B

C AA

5/16

5/16

AA

G G

90°

A-A A-A

570-39 TH570-056 TH570-057 TH570-058

B Preheat and Interpass 120°C (250°F)

Front Floating Knife Replacement Weld Details C

11.11

Edge to Be 90° to Bottom Surface

Knife Arms and Knives

Tigercat TH570 Harvesting Head

TREE GUIDES AND FIXED KNIFE REPLACEMENT

5/16 5/16

TH570-010 5/16 5/16

TH570-011

5/16 5/16

5/16 5/16 TH570-012 570-21

WELDING PROCEDURE 1. Preheat components to 150ºC (300ºF).

2. Use GMAW weld process.

3. Use an AWS A5.28, class E110C-G-H4 electrode or equivalent. Electrode is to be thoroughly dried.

4. Maintain preheat and interpass temperature from start to finish.

5. Blend welds for smooth transitions.

6. Peen welds after each pass to relieve residual stresses in the weld areas. Weld in short passes using a back - step technique and alternate welds to minimize distortion. Do not exceed 260ºC (500ºF) knife edge temperature or loss of hardness will result.

7. Part is to be slow cooled immediately after welding using suitable means. Cover part with sand or heat blanket for 4 hours minimum.

11.12

Tigercat TH570 Harvesting Head

Knife Arms and Knives 0.000 0.015 0.12 0.300 0.250 36° ±1°

5.5° 1 1/4" REF. REF.

28°

A

1/2" REF REF.

TH575-119

570-02

A Tree Side of Knife

Front Fixed Knife Cutting Edge Angles

11.13

Knife Arms and Knives

Tigercat TH570 Harvesting Head

.000 .015

TYP TYP 125

.290 .295

30°±1° 1.88 25° .030 .040

3" REF. REF.

A

.20 R R.25 1/2"

5/16" X 45 CHAMFER CHAMFER

TH570-002

570-39

A Tree Side of Knife

Front Floating Knife Cutting Edge Angles

11.14

Tigercat TH570 Harvesting Head

Knife Arms and Knives

TYP. TYP.

TYP. TYP.

125

125

.000 .015

.000 .015

.33

.33 30° 30°

1.14

1.14 25° 25° 2.22

2.22 .035 .045

.035 .045

.20 R.25 R

.20 R.25 R

A

A 5/8"

5/8"

.20 R.25 R

.035 .045 .20 R.25 R

.035 .045

35°

35° 1.86

1.86

1.00

1.00 25°

.58 REF. REF.

.58 REF. REF.

.000 .015

.000 .015 .15

.15

TH570-041

TH570-042

570-02

A Tree Side of Knife

25°

Front Arm Knife Cutting Edge Angles

11.15

Knife Arms and Knives

Tigercat TH570 Harvesting Head

.015 .000 2X 2×

.250 .300

36° 25°

1.12

.055 .080 2X 2×

5/8"

.050 .060

A R.25 .25 R TYP TYP

.87

25°

50°

.200 .250

TH575-120

570-02

A Tree Side of Knife

Back Arm Knife Cutting Edge Angles

11.16

Tigercat TH570 Harvesting Head

Knife Arms and Knives

5/16"

10°

A

R R .25

9/16" 25° .875

.000 .015

.090 .060

.250 .200 25° TH575-178

570-02

A Tree Side of Knife

Back Fixed Knife Cutting Edge Angles

11.17

Knife Arms and Knives

Tigercat TH570 Harvesting Head

HYDRAULIC PRESSURE TESTS FRONT KNIFE ARMS OPEN AND CLOSE

WARNING The attachment will be operating during this procedure. Operator must ensure that no one is near the attachment during this procedure.

The swing brake should be applied at all times during this procedure.

ADJUSTMENT PROCEDURE 1. Get the hydraulic oil up to operating temperature.

2. Park the head titled down with the tilt lock bolts installed. Refer to PARKING THE HEAD in SECTION 1.

3. Remove the saw chain.

4. Connect a hydraulic gauge to the 'G - LS' test port on the main control valve and route the hose to the cab.

5. Disconnect all electrical connections on all the control valve spool solenoids except the front knife arms solenoids. This will disable all cylinder and motor functions. Do not disconnect the pressure control solenoids.

6. From inside the cab, close and latch the cab door.

7. Start engine and run at Idle.

8. Start measuring system and operate the Head Close function. Record knife proportional pressures. Set current species proportional pressures to 100%.

9. Observe gauge on 'G - LS' test port on the control valve. Front knives close pressure should be 210 Bar (3045 psi).

10. Discontinue Head Close operation, raise attachment 2 meters (6 feet) off the ground and operate Head Open function.

11. Observe gauge on 'G - LS' test port on the control valve. Front knives open pressure should be 95 Bar (1375 psi).

12. Discontinue operation of function, lower attachment to the ground and shut engine off.

13. If pressures are not within specifications, loosen the locknut and adjust the feed reducer. Turn the screw IN to increase pressure and OUT to decrease pressure.

14. Repeat steps 6 - 12.

15. Reset proportional pressures to recorded values.

11.18

Tigercat TH570 Harvesting Head

C

D

Knife Arms and Knives

E

F

H G 570-18

A B

570-14

A B C D

Tilt Lock Bolt Main Control Valve Front Knives Open Feed Reducer Front Knives Close Feed Reducer

Front Knife Arms Pressure Adjustment E F G H

11.19

Front Knives Solenoids G-LS Gauge Test Port SRV-A2 – Front Knives Pressure Control Solenoid RV-A2 – Front Knives Proportional Relief Valve (Non-adjustable)

Knife Arms and Knives

Tigercat TH570 Harvesting Head A

B

C

L

K D E

J

F

I

G

H

570-05 TH570-021

A B C D E F

Right Cylinder Left Cylinder Cross-Port Reliefs – 140 bar (2031 psi) Pilot Drain Pilot Supply Knives Open Feed Reducer

Front Knife Arms Hydraulic Schematic G H I J K L

11.20

Knives Close Feed Reducer To Front Knife Pressure Control Pump Supply Tank Return Front Knife Arms Close Solenoid Front Knife Arms Open Solenoid

Tigercat TH570 Harvesting Head

Knife Arms and Knives

G

F

E

A

A

D

C

570-05 A00220

A B C D

B

Knife Arms Pressure Control Hydraulic Schematic

To Measuring Wheel Cylinder To Back Knife Arm Circuit Back Knife Arm Pressure Control Solenoid Front Knife Arms Pressure Control Solenoid

E To Front Knife Arms Circuit F RV-A2 Pressure – 10 bar (145 psi) Bias G Tank Return

11.21

Knife Arms and Knives

Tigercat TH570 Harvesting Head

HYDRAULIC PRESSURE TESTS BACK KNIFE ARM OPEN AND CLOSE

WARNING The attachment will be operating during this procedure. Operator must ensure that no one is near the attachment during this procedure.

The swing brake should be applied at all times during this procedure.

ADJUSTMENT PROCEDURE 1. Get the hydraulic oil up to operating temperature.

2. Park the head titled down with the tilt lock bolts installed. Refer to PARKING THE HEAD in SECTION 1.

3. Remove the saw chain.

4. Connect a hydraulic gauge to the 'G - LS' test port on the main control valve and route the hose to the cab.

5. Disconnect all electrical connections on all the control valve spool solenoids except the back knife arm solenoids. This will disable all cylinder and motor functions. Do not disconnect the pressure control solenoids.

6. From inside the cab, close and latch the cab door.

7. Start engine and run at IDLE. 8. Start measuring system and operate the Head Close function. Record knife proportional pressures. Set current species proportional pressures to 100%.

9. Observe gauge on 'G - LS' test port on the control valve. Back knife close pressure should be 210 Bar (3045 psi).

10. Discontinue Head Close operation, raise attachment 2 meters (6 feet) off the ground and operate Head Open function.

11. Observe gauge on 'G - LS' test port on the control valve. Back knife open pressure should be 95 Bar (1375 psi).

12. Discontinue operation of function, lower attachment to the ground and shut engine off.

13. If pressures are not within specifications, loosen the locknut and adjust the feed reducer. Turn the screw IN to increase pressure and OUT to decrease pressure.

14. Repeat steps 6 - 12.

15. Reset proportional pressures to recorded values.

11.22

Tigercat TH570 Harvesting Head

C

Knife Arms and Knives E

D

F

H

G 570-18

A B

570-14

A B C D

Tilt Lock Bolt Main Control Valve Back Knife Open Feed Reducer Back Knife Close Feed Reducer

Back Knife Arm Pressure Adjustment E F G H

11.23

Back Knife Solenoids G-LS Gauge Test Port RV-A1 – Back Knife Proportional Relief Valve (Non-adjustable) SRV-A1 – Back Knife Pressure Control Solenoid

Knife Arms and Knives

Tigercat TH570 Harvesting Head

K J

I H

A

G F

B

E

D 570-05 TH570-023

A B C D E F

Knife Open Feed Reducer Knife Close Feed Reducer To Back Knife Pressure Control Part of Inlet Manifold RV-A1 Pressure – 10 bar (145 psi) Bias Pump Supply

C

Back Knife Arm Hydraulic Schematic G H I J K

11.24

Tank Return Pilot Supply Pilot Drain Back Knife Arm Close Solenoid Back Knife Arm Open Solenoid

Tigercat TH570 Harvesting Head

Knife Arms and Knives

G

F

E

A

A

D

C

570-05 A00220

A B C D

B

Knife Arms Pressure Control Hydraulic Schematic

To Measuring Wheel Cylinder To Back Knife Arm Circuit Back Knife Arm Pressure Control Solenoid Front Knife Arms Pressure Control Solenoid

E To Front Knife Arms Circuit F RV-A2 Pressure – 10 bar (145 psi) Bias G Tank Return

11.25

Knife Arms and Knives

Tigercat TH570 Harvesting Head

11.26

Tigercat TH570 Harvesting Head SECTION 12 – OPTIONS Read and understand the entire contents of this manual, and all manuals for any attachments or accessories associated with this equipment, prior to operating or servicing.

CONTENTS – SECTION 12 S

ISSUE 1.1, NOVEMBER 2016

SPECIAL TOOLS....................................................................................................................................................... 12.2

Options

Tigercat TH570 Harvesting Head

SPECIAL TOOLS Special tools are available through the Tigercat Parts Department.

A

Refer to the Parts Manual for part numbers.

B C

D

TH575-129

E

1. Slide hammer to assist with the rotator link pin and wheel arm cylinder base end pins.

TH575-132

2. Socket, 1-13/16", 6 point, 3/4" drive for taper lock pins.

TH575-140 TH575-139 TH575-138 TH575-137 TH575-133

5. Super Cut 300 saw tool kit, contains tools to service the SC300 saw unit: A. Puller used for removal and installation of saw motor. Thread centre bolt into end of saw motor shaft.

B. Assembly tool used when replacing cylinder seal.

Position large end next to piston and slide the cylinder seal assembly over and into the piston groove.

TH575-131

C. Compression tool used after replacing cylinder seal. Press tool onto piston to compress the cylinder seal assembly. Leave in place for a couple minutes.

3. Spanner wrench, 2-13/16". Used for the length measuring cylinder gland retaining nut.

D. Retraction tool is used to retract the saw bar when replacing the saw chain. Connect the tool to the extended pin in the bar holder and to the special adapter in the tension housing. Pull the tool to retract the saw bar and bar holder.

Press locking pin to keep bar holder in retracted position.

TH575-130

4. Spanner wrench, 3" diameter. Used for the rotator pin threaded collar.

E. Used for removal and installation of check valve for chain tensioning.

12.2

Tigercat TH570 Harvesting Head

Options

A

TH575-144

8. 75mm seal installation tool (frame drive assembly).

B

C

TH575-147

9. 45mm seal installation tool (diameter measuring assembly).

D

TH575-137 TH575-135 TH575-134 TH575-133

6. Super Cut 100 saw tool kit, contains tools to service the SC100 saw unit.

A. Puller used for removal and installation of saw motor. Thread correct set screw into end of saw motor shaft and into centre bolt.

TH575-146

10. 120mm bearing installation tool (frame drive assembly).

B. Compression tool used after replacing cylinder seal. Press tool onto piston to compress the cylinder seal assembly. Leave in place for a couple minutes.

C. Check valve key used for removal and installation of the check valve for the chain lubrication oil pump. Insert end prongs in holes in check valve.

D. Used for removal and installation of check valve for chain tensioning.

TH575-141

TH575-143

11. 90mm seal installation tool (measuring wheel assembly).

TH575-145

7. 70mm HP seal installation tool (measuring wheel assembly).

12. 35mm bearing installation tool (diameter measuring assembly).

12.3

Options

Tigercat TH570 Harvesting Head

TH575-142

13. 75mm bearing installation tool (measuring wheel assembly).

TH575-168

18. 1 7/8" open end wrench.

TH575-148

14. 70mm pin removal tool.

TH575-169

19. 1 13/16" open end, 12 point box end wrench.

TH575-149

15. 45mm pin removal tool.

TH575-177

20. 2.5" pin installation tool.

TH575-152

16. 5/16" hex socket, 6" long, 3/8" drive. For servicing the wheel arm hoses.

TH570-013

21. 3" to 3/4" drive wrench. Used for installing and removing the tilt frame main pivot pin.

TH575-167

17. 1 3/8" open end wrench.

12.4