Prentice 426 OPERATOR’S MANUAL

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Page 1

OPERATOR’S MANUAL

Delimber

426

Part No. 30011615

March 2012

Rev. C

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TO THE OPERATOR

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1008

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TO THE OPERATOR

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TO THE OPERATOR

INTRODUCTION

DO NOT OPERATE THIS DELIMBER WITHOUT FIRST READING AND UNDERSTANDING THIS MANUAL. OPERATORS MUST HAVE THE NECESSARY TRAINING AND AUTHORIZA TION TO OPERATE AND MAINTAIN THIS DELIMBER PROPERLY.

REMEMBER THAT THE OPERATOR IS THE KEY TO SAFETY. GOOD SAFETY PRACTICES PROTECT THE OPERATOR AND THE PEOPLE AROUND THE OPERATOR. MAKE THIS MANUAL A WORKING PART OF THE SAFETY PROGRAM.

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To safely operate this machine, follow the instructions in this operator’s manual. Directions in this manual are referenced from the operator’s seat facing forward (see diagram below).

FORWARD

LEFT RIGHT

BACK

You can help improve this manual. If you nd any mistakes, or if you know of a way to improve procedures, please let us know. Mail your suggestions or comments to the attention of Technical Publications, Caterpillar Forest Products, Inc., 3249 South County Road 45, PO Box 568, Owatonna, MN 55060-0568.

This operator’s manual includes information available and current at the time of approval for printing

Caterpillar Forest Products, Inc., reserves the right to improve its product without giving prior notice or incurring obligation.

This operator’s manual should be regarded as part of the machine. Suppliers of both new and second hand machines are advised to retain documentay evidence that this manual was provided with the machine.

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TO THE OPERATOR

WARNING

DANGER

CAUTION

NOTICE

SAFETY SYMBOLS

SAFETY ALERT SYMBOL

THE SAFETY ALERT SYMBOL MEANS

ATTENTION! BE ALERT! YOUR SAFETY IS INVOLVED!

This safety symbol is used for important safety messages. To avoid personal injury and/or property damage, when you see this symbol, follow the corresponding safety message.

Understand signal words: DANGER, WARNING, and

CAUTION are used with the SAFETY ALERT SYMBOL.

DANGER IDENTIFIES A HAZARD OR UNSAFE PRACTICE THAT WILL RESULT IN SEVERE PERSON AL INJURY OR DEATH.

WARNING identies a hazard or unsafe practice that could result in severe personal injury or death.

CAUTION identies a hazard or unsafe practice that could result in personal injury or property damage.

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NOTICE identies important installation, operation, or maintenance information.

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TO THE OPERATOR

CONTENTS

PRODUCT PROTECTION PLAN .............................................i

TO THE OPERATOR ..................................................................iii

Safety Symbols .................................................................iv

01  GENERAL SAFETY ........................................................11

Safety Alert Symbol .....................................................1-1

Operator Preparation ..................................................1-1

Danger Area ....................................................................1-2

Delimber Blade Safety ................................................1-2

Discharge Accumulator ..............................................1-3

Electric Lines ...................................................................1-4

Electric Storm .................................................................1-4

Fire Prevention/First Aid .............................................1-5

Fluids Under Pressure..................................................1-5

Handholds & Steps .......................................................1-6

Hand Signals ...................................................................1-6

Hoses & Fittings .............................................................1-7

No Climbing ....................................................................1-7

Operator Safety .............................................................1-7

Pinch Points ....................................................................1-8

Practice Safe Maintanance ........................................1-8

Pressure Settings ..........................................................1-8

Protctive Clothing.........................................................1-9

Protective Devices/Equipment ................................1-9

Saw Bar Safety ................................................................1-9

Saw Operation Safety ............................................... 1-10

Servicing Control Valves, Cylinders,

Pumps & Motors ................................................1-10

Support Components ..............................................1-10

Unauthorized Welding ............................................. 1-10

02  SAFETY DECALS ...........................................................21

Delimber Decals ............................................................2-1

Inside Cab Decals ..........................................................2-2

03  PRESTART INSPECTION ............................................31

04  OPERATION, CONT.

Gooseneck Trailer .........................................................4-6

Connections to Delimber Head ...............................4-6

Tagalong Trailer .............................................................4-7

Topping Saw Oiler ........................................................4-8

Bleeding Topping Saw Oiler ......................................4-8

Bar Oil Flow Adjustment ......................................... 4-10

Bar Oil Flow Adjustment Troubleshooting ....... 4-10

Charging the Accumulator ..................................... 4-11

Joystick Button Functions .......................................4-12

LH Joystick Rocker Switch ...................................... 4-12

RH Joystick Rocker Switch ...................................... 4-12

Removing Trapped Limbs from Knives .............. 4-13

Hydraulic System Adjustments .............................4-14

Preparing to Make Adjustments .......................... 4-14

Beginning Adjustments .......................................... 4-15

Adjustin Knife Arm Blade Open Pressure .......... 4-15

Adjusting Knife Arm Blade Close Pressure ....... 4-16

Adjusting Knife ARm Blade Open Speed .......... 4-16

Adjusting Swa Bar Up Pressure ............................. 4-17

Completing the Process ..........................................4-17

Adjustin Saw Bar Down Pressure ......................... 4-18

Completing the Process ..........................................4-19

Adjusting Saw Bar Up Speed ................................. 4-20

Completing the Process ..........................................4-20

Auto Tensioner Pressure Adjustment ................. 4-21

Completing the Process ..........................................4-21

Detaching the Delimber ......................................... 4-22

Discharging the Accumulator ............................... 4-23

Delimber Blade Safety ............................................. 4-23

05  LUBRICANTS ...................................................................51

Hydraulic Oil ...................................................................5-1

Topping Saw Oil ............................................................5-1

Grease ...........................................................................5-1

Storing Lubricants ........................................................5-2

04  OPERATION.....................................................................41

General Guidelines .......................................................4-1

Operator Preparation ..................................................4-1

General Description .....................................................4-2

Rotation Bearing & Mounting Base ........................4-2

Set Up ...........................................................................4-3

Mounting & Positioning Delimber Units ..............4-3

Cradle Mount Set Up ...................................................4-3

Positioning Delimber on a Gooseneck Trailer ....4-3

Adjusting Rollers ...........................................................4-4

Typical Landing Set Ups .............................................4-5

Hydraulic Connections ...............................................4-6

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06  MAINTENANCE SAFETY .............................................61

Practice Safe Maintenance ........................................6-1

Delimber Blade Safety ................................................6-2

Discharge Accumulator ..............................................6-2

Fluids Under Pressure..................................................6-3

Hoses & Fittings .............................................................6-3

During Maintenance ....................................................6-4

Hot Hydraulic Oil ...........................................................6-4

Pinch Points ....................................................................6-4

Pressure Settings ..........................................................6-4

Saw Bar Safety ................................................................6-5

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TO THE OPERATOR

NOTES

06  MAINTENANCE SAFETY, CONT.

Saw Operation Safety ..................................................6-5

Servicing Control Valves, Cylinders,

Pumps & Motors ...................................................6-5

Support components ..................................................6-6

Unauthorized Welding ................................................6-6

After Maintenance ........................................................6-7

Storing Flammable Materials ...................................6-7

07  SCHEDULED / PERIODIC

MAINTENANCE SERVICES ..........................................71

Lubricaton Notice .........................................................7-1

Position Machine for Maintenance ........................7-1

Maintenance Chart ......................................................7-2

Hydraulic Pressure ........................................................7-3

Preparing for Saw Bar and Chain Maint. .............7-4\

Maintenance - As Required .......................................7-5

Clean & Grease Cylinder Rods ..................................7-5

Replace Saw Chain .......................................................7-6

Sharpen Saw Chain ......................................................7-8

Machine Grinding Teeth .............................................7-8

Recondition Saw Bar ....................................................7-9

Sharpen Delimber Knife Arm Blades .....................7-9

Replace Delimber Knife Arm Blades ...................7-10

Reassemble Delimber Blade Arms ...................... 7-11

Adjust Bar Oil Flow .................................................... 7-12

Maintenance - Daily or Every 10 Hours .............. 7-13

Performa Daily Visual Inspection ......................... 7-13

Check Oil Level for Topping Saw Oiler ...............7-13

Maintenance - Weekly or Every 50 Hours ......... 7-14

Perform a Weekly Inspection ................................. 7-14

Lubricate Delimber ................................................... 7-15

Lube Knife Arm Tubes .............................................. 7-15

Lube Topping Saw Cylinder ...................................7-15

Lube Knife Arm Cylinder ......................................... 7-15

Lube Saw Bearings .................................................... 7-16

Lube Feed Roller Shafts ........................................... 7-16

Lube Cradle Rollers ................................................... 7-16

Inspect Knife Arm Blades ........................................ 7-17

Lube Large Rotation bearing ................................. 7-17

Lube Saw Bar Bearing .............................................. 7-17

Maintenance - Monthly or Every 250 Hours .... 7-18

Adjust Cradle Rollers ................................................7-18

10  SPECIFICATIONS ........................................................101

Delimber Specs .......................................................... 10-1

Hyd. Connection Torque Specs, 37 Deg. Flare . 10-2

Hyd. Connection Torque Specs, O-Ring ............. 10-3

Torque Chart for Fasteners ..................................... 10-4

Cylinder Torque Specs .............................................. 10-5

11  SERIAL NUMBERS ......................................................111

12  MSDS .............................................................................. 121

13  GLOSSARY ....................................................................131

08  TRANSPORTING ............................................................81

09  STORAGE .........................................................................91

Preparing for Storage ..................................................9-1

Taking Delimber Out of Storage..............................9-2

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DANGER

OPERATOR’S MANUAL.

GENERAL SAFETY

DO NOT OPERATE MACHINE WITHOUT READING AND UNDERSTANDING THIS

SAFETY ALERT SYMBOL

Read all safety messages.

To avoid personal injury and/or property damage, follow all safety messages.

OPERATOR PREPARATION

G.100.05

Before operating this machine Operator must:

• read and understand the Operator’s Manual

• be procient in the control of this machine

• understand the safety features of this machine

• be instructed in the local work sate safety rules

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WARNING

DELIMBER

LOADER

GENERAL SAFETY

DANGER AREA

Flying debris, falling trees, limbs and tops can cause severe personal injury or death. Do not operate delimber within 300 feet (91 meters) of personnel or property.

Any area within a 300 foot radius of the delimber, loader and slasher units is considered a danger area. Area illustrated serves as a guideline and should be enlarged when warranted by working conditions.

SLASHER

GROUND SAW

G.070.04

DELIMBER BLADE SAFETY

Charged accumulator can close delimber blades resulting in severe personal injury or death. DO NOT enter the delimber area without closing delimber blades, shutting engine down, discharging accumulator and blocking out tilting in delimber base frame.

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GENERAL SAFETY

WARNING

DISCHARGE ACCUMULATOR

the delimbing knife area or working on the hydraulic system can lead to serious personal injury or death.

Unless certain that the accumulator is discharged, do not stand or work in the delimbing knife area.

The accumulator is charged with hydraulic pressure to open and close the delimber blades during normal operation. The accumulator can close the delimber blades without the engine driving the hydraulic pump. Therefore, it is very important that BEFORE entering the area around the delimber blades or doing any work on the hydraulic system, the accumulator MUST be discharged. If the accumulator is not discharged, the blades may close, causing serious personal injury or death.

See Section 4, Operation, for instructions on discharging the accumulator.

Standing or working in

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GENERAL SAFETY

WARNING

DANGER

ELECTRIC LINES

DEATH WILL RESULT FROM CONTACT WITH ELEC TRIC LINES.

Never move any part of machine or load closer than 10 feet plus twice the line insulator length to electric lines. A line insulator is what connects an electric line to an electric pole.

For example, if a line insulator is 6 inches long, stay at least 10 feet plus twice the line insulator length (2x6 =12 inches or 1 foot) from electric line, which means machine must stay at least 11 feet from this electric line.

If machine touches an electric line, stay inside the cab. Carefully move machine or load away from electric line, without pulling the line down.

DO NOT allow anyone else to touch machine while it is touching an electric line. If machine cannot be moved away from the electric line without pulling line down, have someone contact the utility company to disconnect power from line. If this is not possible, or if machine begins to burn, jump away from machine to the ground with both feet together, in one smooth jump. DO NOT touch machine and ground at the same time or else electricity in the line will go through the body. Get away from machine after jumping.

SERIOUS INJURY OR

Notify utility company immediately. DO NOT let anyone near machine while it is touching an electric line.

ELECTRICAL STORM

Electrical storms (lightning) can cause severe personal injury or death.

When lightning is striking in the vicinity of the machine, the operator should NEVER attempt the following procedures:

Mount the machine

Dismount the machine

If you are in the operator’s station during an electrical storm, stay in the operator’s station. If you are on the ground during an electrical storm, stay away from the vicinity of the machine.

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GENERAL SAFETY

CAUTION

WARNING

FIRE PREVENTION/FIRST AID

injury and/or machine damage.

Keep machine clean. Forest debris, rags, and trash will cause res. Remove all debris, rags, and trash from machine, especially around engine and hydraulic components.

Repair all hydraulic and fuel leaks immediately. Do not operate machine with hydraulic or fuel leaks.

Fire prevention beats re ghting. Remove debris from all compartments after every 8 hours of operation, or more often, if warranted by working conditions.

At the end of each shift ALWAYS stay with the machine for 30 minutes after shutting down the engine to ensure there is no forest debris/trash re start up. Keep a re extinguisher ready during this 30 minute cool down.

Install a rst-aid kit in the cab.

Fires can cause personal

Properly maintain rst-aid kit and re extinguisher. Follow instructions provided with them.

FLUIDS UNDER PRESSURE

Fluids escaping under pressure can penetrate skin and cause severe personal injury or death.

Wear eye and personal protection equipment (PPE)!

Always use a board or cardboard when checking oil hoses, lines, and ttings for leaks, cracks, or defects. Be sure all clamps are in their proper position and torqued as required and specied. Be sure hoses are not twisted or touching parts.

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DO NOT use hands to search for leaks. Escaping uids can penetrate skin and enter the bloodstream. Before disconnecting lines, relieve all pressure.

DO NOT apply pressure to a damaged hose, line, or tting.

If ANY uid is injected beneath the skin, seek medical attention immediately. A serious infection or reaction can result without proper medical treatment.

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GENERAL SAFETY

WARNING

HAND HOLDS AND STEPS

severe personal injury or death.

Use provided hand holds and steps while maintaining at least 3 points of support (1 foot and 2 hands or 2 feet and 1 hand) when getting on and o machine. Face machine when getting on and o of it.

Never use controls as hand holds. Never use steering wheel as a hand hold. Moving the steering wheel from its center position will COMPLETELY turn machine right or left.

DO NOT mount machine if hand rails or steps are broken or missing. Get them repaired rst.

DO NOT jump on or o machine unless it has touched a live electrical wire and it must be exited.

Ensure rm foot position when getting on and o machine. Be careful of slippery conditions on platform, steps, and hand holds when getting on and o machine.

Slips and falls can cause

Remove oil, grease, mud, ice, etc. before mounting or dismounting machine.

To prevent slips and falls, replace skid-resistant material if it is worn, damaged or missing.

HAND SIGNALS

Accidents can cause severe personal injury or death.

Know and use hand signals required for particular jobs.

Know who has responsibility for signaling.

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GENERAL SAFETY

WARNING

HOSES AND FITTINGS

types of hoses and ttings can blow apart and cause severe personal injury or death.

DO NOT interchange brands or types of hoses and ttings.

DO NOT install a tting from one manufacturer on a hose from a dierent manufacturer.

DO NOT install crimp ttings on hoses meant for reusable ttings.

Wear eye and personal protection equipment (PPE)!

Always use a board or cardboard when checking oil hoses, lines, and ttings periodically for leaks, cracks or defects. Be sure all clamps are in their proper position and torqued as required and specied. Be sure hoses are not twisted or touching parts.

Mismatched brands or

NO CLIMBING

Personell can fall from delimbers or be injured by movement of delimber, causing severe personal injury or death. Slips and falls can cause severe personal injury or death.

DO NOT allow personell on any delimber that is operating.

NEVER jump on or o delimber.

ALWAYS use extreme caution when standing on or near delimber, which can tilt and cause operator to lose balance.

OPERATOR SAFETY

Flying debris, tree limbs, and/or other material can cause severe personal injury or death.

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When operating delimber:

1. Do not operate delimber within 300 feet (91 meters) of personnel or property.

2. Wear eye and personal protection equipment (PPE)!

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GENERAL SAFETY

WARNING

PINCH POINTS

tion of the body where delimber moves can cause severe personal injury or death. NEVER place hands or any portion of the body where injury could occur if delimber moves. NEVER check pin hole alignments with ngers.

PRACTICE SAFE MAINTENANCE

Understand services procedures before performing maintenance. When performing maintenance, keep area around machine clean and dry.

Placing hands or any por-

G.104.05

DO NOT service delimber while it is in operation. Keep away from power-driven parts. Disengage power. Shut engine down. Move controls in all directions to relieve hydraulic pressure. Depressurize delimber accumulator. Remove key from ignition. Allow machine to cool down.

Support all raised equipment.

Keep all delimber parts in good condition, and be sure parts are properly installed. Repair damage immediately. Repair all hydraulic and fuel leaks immediately. Replace worn or broken parts. Remove any buildup of grease, oil or debris.

Disconnect battery ground cable (-) before adjusting electrical system.

PRESSURE SETTINGS

Excessive hydraulic pressure can cause component or structural failure, which may result in severe personal injury or death. Wear eye and personal protection equipment (PPE)!

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DO NOT exceed factory-adjusted pressure settings.

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GENERAL SAFETY

WARNING

PROTECTIVE CLOTHING

Wear OSHA-approved protective clothing when working on or near this machine, such as

• ear protection • hard hat

• gloves • orange vest

• goggles • steel-toed shoes

Wear snug, protective clothing that is belted where required.

Remove jewelry before working on or near this machine.

PROTECTIVE DEVICES/EQUIPMENT

ignorance of protective equipment or devices can cause severe personal injury or death.

Misuse, interference and

Alarms, re prevention equipment, ROPS/FOPS/OPS, and other safety equipment is installed on machine for the operator’s protection.

Never ignore, disconnect, disable or modify protection equipment in any manner.

SAW BAR SAFETY

Loss of hydraulic pressure in the loader or delimber can cause the saw bar to fall. A falling saw bar can cause severe personal injury or death.

NEVER handle the saw bar when loader is running.

ALWAYS wear personal protection equipment (PPE), especially gloves, when handling the saw bar.

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GENERAL SAFETY

WARNING

NOTICE

WARNING

SAW OPERATION SAFETY

bris can cause severe injury or death. Keep loader door closed when operating saw.

To prevent damage from ying debris, align saw bar away from loader and other equipment.

Do not operate delimber within 300 feet (91 meters) of personnel or property.

SERVICING CONTROL VALVES, CYLINDERS, PUMPS AND MOTORS

settings could cause delimber or component failure resulting in severe personal injury or death. Do not change pressure settings. Do not switch lines from one valve to another.

Special tools and training are required to service control valves, cylinders, pumps and motors. If these parts need services, see an authorized dealer.

Flying particles and de-

Increasing relief valve

SUPPORT COMPONENTS

When working beneath delimber or delimber parts, if a hose breaks or a control is moved, machine parts such as boom or attachment may fall resulting in serious injury or death. Provide support for components. DO NOT depend on hydraulic cylinders for support.

UNAUTHORIZED WELDING

Unauthorized welding can cause structural failure and/or severe personal injury or death.

DO NOT weld on any structural member. Any unauthorized welding or repair will void the Warranty.

Once authorized, turn battery disconnect switch OFF and place welding ground (stinger) as close to the weld site as possible. Do not allow weld current to pass through bearings or pivot points.

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to the electrical system.

110

Welding can cause damage

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SAFETY DECALS

NOTICE

DANGER

10065084 1/05

STAY CLEAR IF DELIMBER IS ACTIVATED WITH PERSON IN AREA, SEVERE INJURY OR DEATH COULD OCCUR.

NEVER STAND IN AREA WHEN MACHINERY IS IN OPERATION.

DANGER

10065083 1/05

IF SAW IS OPERATING WITH PERSON IN IMMEDIATE AREA, SEVERE INJURY OR DEATH COULD OCCUR.

NEVER STAND IN THIS AREA WITH LOADER ENGINE RUNNING.

DANGER

10065084 1/05

STAY CLEAR IF DELIMBER IS ACTIVATED WITH PERSON IN AREA, SEVERE INJURY OR DEATH COULD OCCUR.

NEVER STAND IN AREA WHEN MACHINERY IS IN OPERATION.

SAFETY DECALS

The following safety decals are located in positions on the machine as continual reminders of HAZARDS. Serious injury or property damage can occur if safety instructions are not followed.

Keep all safety decals clean and readable. Use a soft cloth, water and soap to clean decals if they are too dirty to read. DO NOT clean safety decals with solvent. Solvent can damage them.

Replace safety decals immediately if they are damaged, missing or hard to read. Contact a CTR dealer for replacement safety decals. A CTR dealer will provide free replacement safety decals when provided a valid CTR machine serial number.

If replacing a part that has a safety decal, apply a new safety decal to the replacement part. Before putting a new decal on the machine or part, be sure the surface where decal wil lbe mounted is clean and dry.

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SAFETY DECALS

INSIDE CAB

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G.069.04

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PRESTART INSPECTION

WARNING

NOTICE

This machine may not be used until operators have read, studied, and understand this manual, and have learned how to properly operate this machine. Operating this machine without reading, studying, and understanding this manual could result in severe personal injury or death.

Failure to perform a daily inspection of the machine could result in machine damage and severe personal injury.

Inspector’s Initials

Check for protective clothing (wear it) and safety equipment (know where it is).

Check entire machine by performing a thorough walk-around inspection.

Check for loose or missing parts. Tighten loose parts; replace missing parts.

Check for leaks in hydraulic hoses and/or lines (replace defective hoses and/or lines).

Check hydraulic hoses and lines for wear and/or damage. Replace any defective hoses and/or lines.

Check that machine has been properly lubricated as described in Scheduled and Periodic Maintenance Services section.

Check shields and guards. They must be in place and undamaged. Replace damaged shields and guards.

Check for ice, snow, oil, and grease on steps and handrails. Clear away ice, snow, mud, oil, and grease to prevent slips and falls.

Check for any damaged or worn steps and handrails. Replace if damaged or worn.

Check that safety decals are on machine and that they are readable.

Check that shut-o valves are open (if equipped).

Check for dirt and grime on all hydraulic components. Remove dirt and grime to help prevent overheating.

Check hydraulic oil reservoir level. Add hydraulic oil to reservoir if necessary.

Check for combustible or ammable materials. Remove them from delimber, if found.

Check mounting hardware. Tighten, if necessary.

Check that machine will not be near electrical wires. See Operation section for more details.

Check bar chain oil reservoir. Add bar chain oil if necessary.

Check bar chain for damage or wear. Replace if damaged or worn.

Machine Serial NumberDate of Inspection

Pages in this section may be copied. Check o each inspection item before operating machine. File the copy as a record of inspection as required by OSHA or local governing body.

31

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NOTES

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OPERATION

WARNING

OPERATION

GENERAL GUIDELINES

Only a trained, qualied and authorized operator shall be allowed to operate this delimber. Only use this delimber after carefully reading this manual and learning how to safely operate and maintain this delimber. Unsafe operation can result in serious personal injury or death.

OPERATION PREPARATION

Operator must be fully trained, qualied and authorized to operate this delimber.

Before running this delimber, operator must know the location and purpose of

• controls

• instruments

• local operating safety rules and procedures

• safety and instruction decals (see Safety Decals

G.100.05

section)

Operator must be at least 18 years old to operate this delimber (Code of Federal Regulations: Labor).

Never operate this delimber while under the inuence of drugs or alcohol. Use of prescription or over-the-counter drugs or medications requires advice from a medical practitioner on whether or not delimber can be safely operated.

Do not operate this delimber if subject to dizziness, seizures or motion disturbance.

No personell is allowed on this delimber. Delimber personell can fall from machine or be injured by movement of machinery, causing severe personal injury or death. Do not allow personell on a delimber that is operating.

Follow all safety operating instructions and practices. (See General Safety section.)

Keep delimber away from power lines.

If this manual is lost, contact an authorized dealer for a new manual. Keep manual with delimber.

Report any noticeable delimber problems to people who can repair the problems before delimber is used.

Do not operate delimber within 300 feet (91 meters) of personnel or property.

REMEMBER THAT THE OPERATOR IS KEY TO THE SAFE OPERATION OF THIS DELIMBER.

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OPERATION

GENERAL DESCRIPTION

The delimber can be mounted on a gooseneck trailer with a loader or on a tagalong trailer.

This is a pull-through type delimber with a topping saw that is operated by loader controls. Its function is delimbing hardwoods or softwoods.

Power is supplied to the delimber through the loader hydraulic system.

The loader operator places a tree into the delimber. The operator then closes the delimber blades and pulls the felled tree through the delimber, pressing the stem gently against the roller. Once the tree has been delimbed, the operator may use the topping saw to top the tree or cut the stem to the desired length.

ROTATION BEARING AND MOUNTING BASE

The large rotation bearing in the mounting base permits the delimber to align with the tree stem as it is pulled through the delimber.

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OPERATION

WARNING

SET UP

MOUNTING AND POSITIONING DELIMBER UNITS

Contact with the delimber while lifting or tranporting can cause equipment damage, severe personal injury or death.

Welding of the delimber sub-base to the mounting platform is normally done at the factory or authorized dealership.

CRADLE MOUNT SET UP

The cradle mount sub-base is connected to the delimber by a pivot block cover bolted down on both sides.

POSITIONING DELIMBER ON A GOOSENECK TRAILER

When positioning a delimber on a gooseneck trailer, the delimber roller should be 4-6 inches (10-15 cm) away from the grapple when the knuckleboom is fully extended. Leaving a gap between the roller and grapple keeps the grapple from hitting and damaging the roller.

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CAUTION

TRANSPORT

CAUTION

SECURING CHAINS

OPERATION

SET UP, CONTINUED

When transporting the delimber, the cradle is secured to the sub-base with transport-securing chains. These transport-securing chains MUST be removed from the cradle before operating the delimber. If the chains are not removed, the delimber head cannot rotate freely, which may result in damage to the cradle mount and the delimber.

10081430.04

ADJUSTING ROLLERS

Failure to check and adjust rollers and rotation bearing will result in failure of the rotation bearing and the bolts that attach the rotation bearing to the cradle base. The cradle can also be damaged.

To adjust rollers

1. Locate support roller adjustment bolts (A) be-

neath the roller mounting brackets.

2. Adjust the roller to make contact. Turn the bolt

clockwise to raise the roller, and counterclockwise to lower the roller.

3. Adjust until snug contact of rollers with bottom of

cradle occurs.

CTR426

44

1008

Page 27

OPERATION

Deck Area

Deck

Area (Tree

Length)

Deck Area

Truck Trailer

Delimber

Slasher

Loader

Trailer

TYPICAL LANDING SET UPS

Cut-to-Length Set Up

Tree Length Set Up

CTR426

Tagalong Set Up

45

1008

Page 28

HYDRAULIC CONNECTIONS

CONNECTIONS TO DELIMBER HEAD

1. Saw Pressure

2. Return

3. Saw Bar Up

4. Open Knife Arm Blades

OPERATION

GOOSENECK TRAILER

The conguration on the left is typical for delimbers mounted on a gooseneck trailer with a loader. The 5 hydraulic hoses from the delimber head (not shown) are labeled for connection to the 5 hose ttings from the trailer.

5. Close Knife Arm Blades

For delimbers mounted on a loader or trailer, remove the accumulator box cover to access ports that supply hydraulic pressure to operate the delimbing blades and topping saw. The ports are numbered in the drawing and listed below:

Description

1. To knife arm open (loader).

2. To return line (loader).

3. To delimber knife open.

4. To delimber knife close.

5. Knife open speed control valve.

6. Accumulator drain valve.

CTR426

46

1008

Page 29

OPERATION

NOTICE

HYDRAULIC CONNECTIONS, CONTINUED

TAGALONG TRAILER CONNECTIONS

LABEL SIZE CONNECTS TO

TAGALONG TRAILER

The conguration on the left is typical for delimbers mounted on tagalong trailers. The 4 hydraulic hoses from the delimber head (not shown) are labeled for connection to the 4 hose ttings from the trailer. The two 3/8-inch lines are used for air brake lines. See the chart on the left for hydraulic line labeling.

Incorrectly connected hydraulic hoses from the delimber head to the mounting unit can cause the knife arm blades and topping saw functions to operate incorrectly and may cause damage to hydraulic components.

Warranty may be voided if hydraulic hoses are damaged due to incorrect hookup.

Tank 1-inch Return

Block 3/4-inch Open/Close Knives

Motor 3/4-inch Saw Pressure

Bar Up 1/2-inch Saw Bar Up

Air Brake (2) 3/8-inch Air Brake Lines

CTR426

47

1008

Page 30

OPERATION

NOTICE

WARNING

TOPPING SAW OILER

BLEEDING THE TOPPING SAW OILER SYSTEM

topping saw oil tank is full.

The topping saw oiler system must be bled of air any time the system runs dry. To rell and bleed the topping saw oiler system, follow the steps on page 4-9.

pressure can penetrate skin and cause severe personal injury or death. Wear eye and personal protection equipment (PPE)!

DO NOT use hands to search for leaks. Escaping uids can penetrate skin and enter the bloodstream. Before disconnecting lines, relieve all pressure.

Before operating, make sure

Fluids escaping under

DO NOT apply pressure to a damaged hose, line, or tting.

If ANY uid is injected beneath the skin, seek medical attention immediately. A serious infection or reaction can result without proper medical treatment.

Always close delimber

knives before shutting the unit down. Failure to do so could result in serious injury or death.

The topping saw oiler provides pressure to the bar and chain oiler line, feeding chain oil into the saw bar groove. The topping saw oil tank ller cap is located on the left side of the delimber base, under topping saw oiler access door (A).

G151.05

The topping saw oil tank capacity is 8.4 gallons (31.75 L). It has been lled with 2 gallons (7.5 L) of bar and chain oil at the factory, and the topping saw oiler has been bled and tested.

Caterpillar Forest Products recommends the use of bar and chain oil because it not only penetrates the saw chain rivet holes, but also resists being thrown o the

CTR426

48

1008

Page 31

OPERATION

WARNING

NOTICE

TOPPING SAW OILER, CONTINUED

chain.

ber knives before shutting unit down. Discharge accumulator after shutting unit down and before performing any maintenance, adjustments or service to the delimber.

Shut engine down, turn key to OFF position and

10085OP.05

remove key before bleeding the topping saw oiler system.

1. Remove cover (A) on left side of base.

2. Locate the topping saw oiler.

3. Open needle valve (B), to fully open position.

4. Start engine.

5. Operate BAR DOWN function 3-4 times.

6. Check to see that saw bar and chain are receiving

oil.

7. Shut engine down.

not receiving oil, shut engine down, check oil level and repeat steps 3-6.

Always close delim-

If the saw bar and chain are

8. Close needle valve (B) to the fully closed position.

9. Turn needle valve 1 1/2 turns counter clockwise.

100815062OP.05

CTR426

49

1008

Page 32

OPERATION

CAUTION

BAR OIL FLOW ADJUSTMENT

Caterpillar Forest Products bar and chain oilers are designed for years of trouble-free operation. To adjust the oil ow to the bar and chain, follow this procedure:

1. Turn the ow needle valve (A) clockwise to RE-

DUCE oil ow to the bar and chain; counterclockwise to INCREASE oil ow to the bar and chain.

100815062.04

BAR OIL FLOW ADJUSTMENT TROUBLESHOOTING

1008150622.04

If the oiler stops applying oil to the bar and chain:

1. Check oil level in tank; add if necessary.

2. Bleed the system if necessary (see previous).

3. Turn the ow needle valve counterclockwise as

needed to increase oil ow.

4. Check for leaks.

5. Examine check valves (B, C & D):

a. Remove check valves individually from the oiler system. b. Clean or replace check valve d. Reassemble oiler system noting the ow direction stamped on check valves. e. Bleed system (see previous).

Installing check valve in the wrong location or with the ow direction reversed can cause damage to the oiler system or personal injury.

1. Check valves are stamped with an arrow.

2. Install according to diagram at left.

CTR426

1008150622.04

410

1008

Page 33

OPERATION

WARNING

CHARGING THE ACCUMULATOR

danger area of all personnel before any operation can begin. Failure to do so may result in serious personal injury or death.

Operator must clear the

DELIMBER

LOADER

SLASHER

GROUND SAW

G.070.04

To ensure proper operation of knife arm blades, accumulator must be fully charged. Engine must be running to charge accumulator.

Start engine. From loader cab, OPEN and HOLD the knife arm blades for 2 minutes. The accumulator is now fully charged.

Always close delimber knives before shutting unit down. Discharge accumulator after shutting unit down and before performing any maintenance, adjustments or service to the delimber.

CTR426

411

1008

Page 34

OPERATION

WARNING

NOTICE

JOYSTICK BUTTON FUNCTIONS

knives before shutting unit down. Discharge accumulator after shutting unit down and before performing any maintenance, adjustments or service to the delimber.

If equipped with joysticks, functions are typically as follows:

instructions if joystick does not have a rocker switch.

LEFT HAND JOYSTICK ROCKER SWITCH

The left hand joystick rocker switch closes and opens delimber blades.

To CLOSE delimber blades, depress LEFT side of rocker switch.

To OPEN delimber blades, depress RIGHT side of rocker switch.

Always close delimber

Follow loader operation

RIGHT HAND JOYSTICK ROCKER SWITCH

The right hand joystick rocker switch moves the topping saw bar UP and DOWN.

To move topping saw bar DOWN, depress LEFT side of rocker switch.

To move topping saw bar UP, depress RIGHT side of rocker switch.

CTR426

412

1008

Page 35

OPERATION

WARNING

REMOVING TRAPPED LIMBS FROM KNIVES

DELIMBER BLADE SAFETY

FIRST ATTEMPT

1. Remove tree from delimber.

2. Open and close delimber knives to dislodge any

trapped limbs.

3. If this does not clear the trapped limbs, follow

instructions under Second Attempt.

SECOND ATTEMPT

1. Remove tree from delimber.

2. Open knives as far as possible.

3. Run tree back and forth through the open knives

several times to dislodge any trapped limbs.

4. If this does not clear the trapped limbs, go on to

the Third Attempt.

THIRD ATTEMPT

1. Remove tree from delimber.

2. Close knives.

3. Turn loader OFF.

4. Discharge accumulator.

Delimber knives are extremely sharp and will cause severe personal injury or death.

5. DO NOT ENTER delimbing area if the knives are

still open or partially open because knives will close once the trapped limbs are removed.

6. Either provide a stable work platform around the

delimber attached to its mounting unit.

CTR426

7. DO NOT ENTER THE DELIMBER KNIFE AREA!

8. Using a rod or similar object, push the trapped

limbs and debris from the knife area.

413

1008

Page 36

OPERATION

CAUTION

NOTICE

Accumulator Bleed Valve

Pressure Gauge Port

Knife Arm Blade

Open Cartridge

Knife Arm Blade

Close Cartridge

Knife Arm Open

Speed Control

Cartridge

HYDRAULIC SYSTEM ADJUSTMENTS

Delimber hydraulic system adjustments are initially set by an authorized dealer. If additional adjustments are required, contact an authorized dealer for assistance, or follow the instructions outlined here.

Additional ne tuning of the initial settings may be necessary to optimize performance for a particular application. Adjustments to the two hydraulic circuits are required.

The saw circuit controls the saw motor, the bar and chain oiler and lowers the saw bar.

ow rate of the color coded motor to the loader ow rate: Gray - LF (low ow 35-55 gpm)

G.152.02

Black - SF (standard ow 55-90 gpm)

Failure to properly match attachment motor ow rate to loader ow rate will result in motor failure.

The bar up circuit raises the saw bar and reloads the bar and chain oiler.

Make sure to match the

There are 6 adjustments that can be made to the delimber to suit the application:

1. Knife arm blade open pressure.

2. Knife arm blade close pressure.

3. Bar down pressure.

4. Bar up pressure.

5. Bar down speed.

6. Auto tensioner pressure.

PREPARING TO MAKE ADJUSTMENTS

Before making any hydraulic adjustments, thoroughly clean area, record (write down) the current settings of the ow control valves and pressure valve. The ow control (color ow) valves have knurled knobs with color bands to use as a guide for recording the current settings. Also record the number of turns required to initially open or close any valve.

Adjustments should be

made AFTER the completion of a cycle, allowing the person adjusting the valves to observe bar up and down movements.

Use the following guide for ow control and needle valves while making adjustments:

OPEN - counterclockwise

CLOSE - clockwise

CTR426

414

1008

Page 37

OPERATION

NOTICE

Accumulator Bleed Valve

Pressure Gauge Port

Knife Arm Blade

Open Cartridge

Knife Arm Blade

Close Cartridge

Knife Arm Open

Speed Control

Cartridge

HYDRAULIC SYSTEM ADJUSTMENTS, CONTINUED

BEGINNING ADJUSTMENTS

1. Loosen the jam nuts on the knife arm blade open

and the knife arm blade close cartridge valves.

2. Using an allen (hex) wrench, turn both cartridge

valves all the way open (counterclockwise). Record how many complete revolutions it takes to turn each valve all the way open.

3. Turn the cartridge valves all the way closed, and

then open them 2 complete turns.

Now it is possible to make adjustments designed for specic timber processing environments.

open/close system pressure above the recommended set-

G.152.02

tings can cause knife arm tubes to break.

pressure adjustment must be set before setting the blade close pressure.

Setting the knife arm blade

. The knife arm blade open

ADJUSTING KNIFE ARM BLADE OPEN PRESSURE

This procedure requires 2 people. Refer to the diagram on the left for component terminology.

To perform these steps, locate the pressure gauge port on the manifold block. Remove the plug from the pressure gauge port and install a pressure gauge with a rating of 0-3000 psi (0-20,685 kPa).

1. Start the engine.

2. Open the knife arm blades, keeping the knife arm

open button depressed.

3. Turn the adjustment screw (A) clockwise to de-

crease the knife arm blade open pressure.

4. Turn the adjustment screw counterclockwise to

increase the knife arm blade open pressure.

5. The knife arm blade open pressure should be

adjusted to 1500 psi (10,335 kPa). Do not adjust pressure outside the pressure range.

6. Tighten the jam nut on the knife arm blade open

cartridge valve.

7. Release the knife arm blade open button.

CTR426

415

1008

Page 38

OPERATION

NOTICE

Accumulator Bleed Valve

Pressure Gauge Port

Knife Arm Blade

Open Cartridge

Knife Arm Blade

Close Cartridge

Knife Arm Open

Speed Control

Cartridge

HYDRAULIC SYSTEM ADJUSTMENTS, CONTINUED

KNIFE ARM BLADE CLOSE PRESSURE

To perform these steps, locate the pressure gauge port on the manifold block. Discharge the accumulator. Clean area around the plug, remove the plug from the pressure gauge port and install a pressure gauge with a rating of 0-3000 psi (0-20,685 kPa).

1. Start the engine.

2. Loosen the jam nut (A) on the knife arm blade

close cartridge valve.

3. Open the delimber knife arms until the accumula-

tor is fully charged. (See instructions for charging the accumulator in this section.)

4. Close the delimber knife arm blades.

G.152.02

5. Adjust the knife arm blade close pressure to

600 psi (4134 kPa).

6. The pressure reading will slowly fall and stop at

the setting of the knife close cartridge valve.

7. Turn the adjustment screw counterclockwise to

decrease the knife arm blade close pressure and repeat steps 3-6.

8. Turn the adjustment screw clockwise to increase

the knife arm blade close pressure and repeat steps 3-6.

9. The knife arm blade close pressure should be

adjusted to 600 psi (4134 kPa). Do not adjust pressure outside the pressure range.

10. If the pressure reading is too low, turn the adjust-

ment screw clockwise to increase the knife arm blade close pressure, and repeat steps 3-5.

11. Tighten the jam nut on the knife arm blade close

cartridge valve.

KNIFE ARM BLADE OPEN SPEED

1. Locate knife arm blade speed control valve (B).

CTR426

2. Loosen set screws.

3. Turn the control valve knob counterclockwise to

increase the knife arm open speed.

4. Turn the control valve knob clockwise to decrease

the knife arm blade open speed.

5. After obtaining desired speed, tighten set screws.

Knife arm blade close speed

is not adjustable.

416

1008

Page 39

OPERATION

NOTICE

Accumulator Bleed Valve

Pressure Gauge Port

Knife Arm Blade

Open Cartridge

Knife Arm Blade

Close Cartridge

Knife Arm Open

Speed Control

Cartridge

HYDRAULIC SYSTEM ADJUSTMENTS, CONTINUED

Saw Bar Down

Pressure

Cartridge

SN DE22088 AND LOWER

Saw Bar Down

Pressure

Cartridge

SN DE22089 AND HIGHER

Saw Bar Up

Pressure

Cartridge

Saw Bar Down

Speed Cartridge

10081756.05

Saw Bar

Down Speed

Cartridge

Saw Bar Up

Pressure

Cartridge

10045.OPS.06

SAW BAR UP PRESSURE ADJUSTMENT

Adjusting the saw bar up pressure too high will cause the saw bar to slam into the saw box.

The saw bar up pressure is controlled by the pressure reducing valve (A) located in the pressure reducing block.

1. Clean area around gauge port in pressure reduc-

ing block.

2. Install a 0-3000 psi (0-20,685 kPa) pressure

gauge in the gauge port of the pressure reducing block.

3. Start the power source.

4. Check that the pressure adjustment screw (B)

on the bar down pressure cartridge valve is fully backed out.

5. Activate the valve to raise the saw bar.

6. Adjust the saw bar up pressure cartridge valve so

that it reads 1800 psi (5,512 kPa).

7. Tighten jam nut on the saw bar up pressure car-

tridge valve.

COMPLETING THE PROCESS

Be sure to tighten set screws on ow control (color ow) valves, and the jam nuts on the cartridge valves.

CTR426

G.152.02

Adjusting the saw bar up

pressure too low will cause the delimber knifes to drift shut.

417

1008

Page 40

OPERATION

NOTICE

CAUTION

NOTICE

Accumulator Bleed Valve

Pressure Gauge Port

Knife Arm Blade

Open Cartridge

Knife Arm Blade

Close Cartridge

Knife Arm Open

Speed Control

Cartridge

HYDRAULIC SYSTEM ADJUSTMENTS, CONTINUED

Saw Bar Down

Pressure

Cartridge

SN DE22088 AND LOWER

Saw Bar Down

Pressure

Cartridge

SN DE22089 AND HIGHER

Saw Bar Up

Pressure

Cartridge

Saw Bar Down

Speed Cartridge

10081756.05

Saw Bar

Down Speed

Cartridge

Saw Bar Up

Pressure

Cartridge

10045.OPS.06

SAW BAR DOWN PRESSURE ADJUSTMENT

Adjusting the saw bar down

pressure too high will cause excessive bar wear.

The bar down pressure can be increased or decreased to adjust for the type of timber being harvested and for the operator’s skill level. The objective is to create a consistent bar down speed as the bar travels through the wood during cutting.

If the power source cannot provide the correct ow to the delimber, contact an authorized dealer for additional information.

Make sure to match the ow rate of the color coded motor to the loader ow rate: Gray - LF (low ow 35-55 gpm) Black - SF (standard ow 55-90 gpm)

Failure to properly match attachment motor ow rate to loader ow rate will result in motor failure.

This procedure requires 2 people. Refer to the diagram on the left for component terminology.

1. Clean area around gauge port in pressure reduc-

ing block.

2. Install a 0-3000 psi (0-20,685 kPa) pressure gauge

in the gauge port of the pressure reducing block.

3. Start the engine.

4. Check that the pressure adjustment screw on

the bar down pressure cartridge valve (A) is fully backed out.

5. Activate the valve to lower the saw bar (saw bar

may not come out of the box) and hold the switch while reading the bar down pressure from the saw bar down pressure gauge.

Bar down pressure must not

exceed 650 psi (4482 kPa) or severe damage to the hydraulic motor will occur.

6. While the loader operator raises and lowers the

saw bar, adjust the bar down pressure cartridge valve by closing it in 1/4 turn increments until the pressure gauge reads the new bar down pressure number, between 400-600 psi (2758-4137 kPa).

CTR426

G.152.02

418

1008

Page 41

OPERATION

NOTICE

Accumulator Bleed Valve

Pressure Gauge Port

Knife Arm Blade

Open Cartridge

Knife Arm Blade

Close Cartridge

Knife Arm Open

Speed Control

Cartridge

HYDRAULIC SYSTEM ADJUSTMENTS, CONTINUED

Saw Bar Down

Pressure

Cartridge

SN DE22088 AND LOWER

Saw Bar Down

Pressure

Cartridge

Saw Bar Up

Pressure

Cartridge

Saw Bar Down

Speed Cartridge

10081756.05

Saw Bar

Down Speed

Cartridge

SAW BAR DOWN PRESSURE ADJUSTMENT, CONT.

Optimum bar down pressure

is 550 psi (3790 kPa).

7. Tighten the jam nut on the bar down cartridge

valve.

COMPLETING THE PROCESS

Be sure to tighten set screws on ow control (color ow) valves, and the jam nuts on the cartridge valves.

SN DE22089 AND HIGHER

Saw Bar Up

Pressure

Cartridge

10045.OPS.06

CTR426

G.152.02

419

1008

Page 42

NOTICE

SN DE22088 AND LOWER

Flow Control

Valve

OPERATION

HYDRAULIC SYSTEM ADJUSTMENTS, CONTINUED

SAW BAR UP SPEED ADJUSTMENT

Flow Control

Valve

The saw bar up speed is controlled by adjusting the saw bar up control valve. The saw bar up valve controls the amount of pressure supplied to the bar up cylinder.

To increase the saw bar up speed, turn the ow control valve (A) clockwise.

To decrease the saw bar up speed, turn the ow control valve counterclockwise.

1. Start the engine.

2. Raise and lower the saw bar 3 times to stabilize

10081756.05

the system.

3. While the loader operator raises and lowers the

saw bar, a second person must adjust the bar up speed control valve until the bar raises in 1-2 seconds total travel time.

too fast can cause the chain to come o the saw bar.

Setting the saw bar up speed

COMPLETING THE PROCESS

Be sure to tighten set screws on ow control (color ow) valves, and the jam nuts on the cartridge valves.

10045.OPS.06

CTR426

420

1008

Page 43

OPERATION

NOTICE

HYDRAULIC SYSTEM ADJUSTMENTS, CONTINUED

Auto Tensioner

Pressure Valve

SN DE22088 AND LOWER

Auto Tensioner

Pressure Valve

10081756.05

AUTO TENSIONER PRESSURE ADJUSTMENT

The auto tensioner pressure is controlled by adjusting the auto tensioner pressure control valve. The auto tensioner pressure meters the hydraulic pressure applied to the auto tensioner.

To increase the auto tensioner pressure, turn the ow control valve (A) clockwise.

To decrease the auto tensioner pressure, turn the ow control valve counterclockwise.

1. Start the engine.

2. Raise and lower the saw bar 3 times to stabilize

the system.

3. While the loader operator raises and lowers the

saw bar, a second person must adjust the auto tensioner pressure until correct setting is reached.

Setting the auto tensioner pressure too high can cause the chain to break. Setting the auto tensioner pressure too low can cause the chain to come o the saw bar. Auto tension pressure must not exceed 400 psi (2756 kPa) or severe damage or excessive wear to the saw bar and chain will result.

10045.OPS.06

COMPLETING THE PROCESS

Be sure to tighten set screws on ow control (color ow) valves, and the jam nuts on the cartridge valves.

CTR426

421

1008

0206

Page 44

WARNING

OPERATION

DETACHING THE DELIMBER

Always discharge the accumulator before performing any maintenance or service on the delimber.

DO NOT detach the delimber for transport. Only detach the delimber for maintenance or service purposes. Delimbers can be transported when mounted on their bases.

When detaching the delimber, always use a lifting harness. Lifting harnesses are available at authorized dealers.

To prevent equipment damage or personal injury, when lifting the delimber, use the lifting harness. Another line should be secured to the delimber to help balance the delimber while it is being lifted.

Equipment damage, severe personal injury or death can occur if the delimber is mishandled or dropped. Do not stand near or under the delimber head while it is being lifted.

PROCEDURE FOR DETACHING DELIMBER

1. Turn engine o.

2. Remove key.

3. Discharge accumulator (see instructions in this

section).

4. Relieve pressure from hydraulic reservoir.

5. Find hydraulic lines located under access cover on

base.

6. Disconnect and cap both ends of all hydraulic

lines.

7. Disconnect and cap both ends of all bar oiler lines.

8. Remove bolts and pivot blocks (both sides) (A).

9. Using a lifting harness, lift delimber head slightly,

making sure hydraulic lines are not tangled or in any way preventing the unit from being lifted o the supports.

10. Lift delimber head until it is clear of the mounting

cradle.

CTR426

422

1008

Page 45

OPERATION

WARNING

DISCHARGING ACCUMULATOR

DELIMBER BLADE SAFETY

close delimber blades resulting in severe personal injury or death. DO NOT enter the delimber area without closing delimber blades, shutting engine down, discharging accumulator and blocking out tilting in delimber base frame.

The accumulator cylinder contains a bladder (A). Accumulator pressure is set by pumping nitrogen gas into the bladder through the nitrogen charge and check port (B).

DISCHARGING THE ACCUMULATOR

Delimbers mounted on a loader or trailer have hydraulic oil pressure that must be bled from the accumulator

before performing any maintenance or disconnecting any hydraulic lines. If this is not done, the system will discharge oil under pressure when lines are disconnected or parts are removed.

Charged accumulator can

Fluids escaping under pressure can penetrate skin and cause severe personal injury or death. Wear eye and personal protection equipment (PPE)!

DO NOT use hands to search for leaks. Escaping uids can penetrate skin and enter the bloodstream. Before disconnecting lines, relieve all pressure.

DO NOT apply pressure to a damaged hose, line, or tting.

If ANY uid is injected beneath the skin, seek medical attention immediately. A serious infection or reaction can result without proper medical treatment.

CTR426

423

1008

Page 46

OPERATION

Accumulator Bleed Valve

Pressure Gauge Port

Knife Arm Blade

Open Cartridge

Knife Arm Blade

Close Cartridge

Knife Arm Open

Speed Control

Cartridge

DISCHARGING THE ACCUMULATOR, CONTINUED

To bleed pressure from the accumulator,

1. Make sure engine is OFF.

2. Open bleed valve in accumulator box by turning

3. Give the accumulator 45 seconds to bleed o

The accumulator bleed valve must be closed for operation.

G.152.02

the bleed valve handle counterclockwise.

pressure. In a quiet area, the bleed o will be audible.

CTR426

424

1008

Page 47

LUBRICANTS

NOTICE

LUBRICANTS

HYDRAULIC OIL

Hydraulic systems have been factory-lled with Premium All-Season Hydraulic Oil 46. Use the following hydraulic oils for the specicied ambient temperature range.

AMBIENT TEMP AMBIENT TEMP AMBIENT TEMP 25°F TO 80°F 10°F TO 95°F 0°F TO 105°F 32°C TO 27°C 23°C TO 35°C 18°C TO 41°C

Premium All-Season Premium All-Season Premium All-Season Hydraulic Oil 32 Hydraulic Oil 46 Hydraulic Oil 68

Check with an authorized dealer for hydraulic fulid recommendations and compatibilities.

Be sure hydraulic uid selection is compatible with the hydraulic system.

Be sure hydraulic uid selection assistance comes from a reputable dealer.

Be sure hydraulic specications meet or exceed Premium All-Season Hydraulic Oil specications. See an authorized dealer.

Be sure to use a mineral-base hydraulic oil.

TOPPING SAW OIL

The topping saw oil tank capacity is 8.4 gallons (31.75 L). It has been factory-lled with 2 gallons (7.5 L) of bar and chain oil. recommends the use of bar and chain oil because it penetrates the saw chain rivet holes and resists being thrown o the chain.

GREASE

All lubricating points use Premium Moly-Lith #2 grease. Use Premium Moly-Lith #2 when lubricating.

CTR426 1008

51

Page 48

LUBRICANTS

NOTICE

STORING LUBRICANTS

Store lubricants in a clean area that will keep them protected from water, dirt or other contamination.

Always use clean containers when handling lubricants.

Storing lubricant drums or other containers outdoors is a poor practice. To minimize the harmful eect of unavoidable outdoor storage, a few simple precautions and procedures can be very helpful.

1. Generally, lubricants in containers smaller than

drums (55, 30 and 16 gallon oil drums and 400 and 120 pound grease drums) should never be stored outdoors. When drums must be stored outdoors, a temporary shelter or lean-to, or a waterproof tarp will protect them from rain or snow.

2. Drums should be placed on their sides with the

bungs approximately horizontal. In this position, the bungs are below the level of the contents so that breathing of water or moisture is greatly reduced, and water cannot collect inside the chine (ridge of drum). For maximum protection, the drums should be stood on end with the bung ends down on a well-drained and contained surface. Where all of these approaches are impractical, drum covers can be used. These are available in metal and plastic.

3. When drums must be stored outdoors with the

bung end up, they should be blocked up with the bungs parallel to the block to keep water away from the bung openings.

4. Drums that have a bung on the side should be

stored either on end, or on their side with the bung down. Regardless of their position, drums should always be placed on blocks or racks several inches o the ground to avoid moisture damage.

DISPOSE OF USED FLUIDS PROPERLY.

(such as salt air or industrial pollution), apply Chrome Kote Corrosion Preventive with a sponge to portions exposed to air. See Storage section for more information.

CTR426

If machine will be stored for an extended period, or stored in a corrosive environment

52

1008

Page 49

MAINTENANCE SAFETY

WARNING

NOTICE

MAINTENANCE SAFETY

BEFORE MAINTENANCE

Maintaining this delimber improperly could result in severe personal injury or

death. Read this manual before performing maintenance. Follow all safety instructions.

Most maintenance procedures described in this section require 2 people. As an added

safety precaution, it is always advisable to have a second person available during any maintenance procedure.

1. Read all safety and maintenance instructions in

this operator’s manual.

2. Position equipment on rm, level ground.

3. Shut engine down.

4. Move controls in all directions to relieve hydraulic

pressure.

5. Discharge accumulator.

G.100.05

6. Remove key from ignition.

PRACTICE SAFE MAINTENANCE

Understand service procedures before doing maintenance. When doing maintenance, keep area around delimber clean and dry.

DO NOT service delimber while it is operating. Keep away from power-driven parts. Lower attachment to the ground. Disengage power. Stop the engine. Move controls in all directions to relieve hydraulic pressure and to discharge accumulator. Remove key from ignition. Allow machine to cool down.

Support all raised equipment.

Keep all delimber parts in good condition, and be sure parts are properly installed. Repair delimber damage immediately. Replace worn or broken parts. Remove any buildup of grease, oil or debris.

CTR426

Disconnect battery before adjusting electrical system.

61

1008

Page 50

MAINTENANCE SAFETY

WARNING

BEFORE MAINTENANCE

DELIMBER BLADE SAFETY

Charged accumulator can

DISCHARGE ACCUMULATOR

Standing or working in the delimbing knife area or working on the hydraulic system can lead to serious personal injury or death.

Unless certain that the accumulator is discharged, do not stand or work in the delimbing knife area.

The accumulator is charged with hydraulic pressure to close the delimber blades during normal operation. The accumulator can close the delimber blades without the engine driving the hydraulic pump. Therefore, it is very important that BEFORE entering the area around the delimber blades, or doing any work on the hydraulic system, the accumulator MUST be discharged. If the accumulator is not discharged, the blades may close.

See Operation section for instructions on discharging the accumulator.

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Page 51

MAINTENANCE SAFETY

WARNING

BEFORE MAINTENANCE

FLUIDS UNDER PRESSURE

pressure can penetrate skin and cause severe personal injury or death. Wear eye and personal protection equipment (PPE)!

DO NOT use hands to search for leaks. Escaping uids can penetrate skin and enter the bloodstream. Before disconnecting lines, relieve all pressure.

DO NOT apply pressure to a damaged hose, line, or tting.

If ANY uid is injected beneath the skin, seek medical attention immediately. A serious infection or reaction can result without proper medical treatment.

Fluids escaping under

HOSES AND FITTINGS

Mismatched brands or types of hoses and ttings can blow apart and cause severe personal injury or death.

DO NOT interchange brands or types of hoses and ttings.

DO NOT install a tting from one manufacturer on a hose from a dierent manufacturer.

DO NOT install crimp ttings on hoses meant for reusable ttings.

Wear eye and personal protection equipment (PPE)!

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Page 52

MAINTENANCE SAFETY

WARNING

CAUTION

DURING MAINTENANCE

HOT HYDRAULIC OIL

burns. A thermometer is located on the hydraulic oil tank. DO NOT work on the hydraulic system if oil temperature exceeds 120°F (49°C).

Hot oil can cause severe

PINCH POINTS

Placing hands or any portion of the body where delimber moves can cause severe personal injury or death. NEVER place hands or any portion of the body where injury could occur if delimber moves. NEVER check pin hole alignments with ngers.

PRESSURE SETTINGS

Excessive hydraulic pressure can cause component or structural failure, which may result in severe personal injury or death. Wear eye and personal protection equipment (PPE)!

CTR426

DO NOT exceed factory-adjusted pressure settings.

64

1008

Page 53

MAINTENANCE SAFETY

WARNING

DURING MAINTENANCE

SAW BAR SAFETY

in the pedestal or delimber can cause the saw bar to fall. A falling saw bar can cause severe personal injury or death.

NEVER handle the saw bar when loader is running.

ALWAYS wear personal protection equipment (PPE), especially gloves, when handling the saw bar.

Loss of hydraulic pressure

SAW OPERATION SAFETY

Flying particles and debris can cause severe injury or death. Keep loader door closed when operating saw.

To prevent damage from ying debris, align saw bar away from loader and other equipment. Replace damaged window material.

Do not operate delimber within 300 feet (91 meters) of personnel or property.

SERVICING CONTROL VALVES, CYLINDERS, PUMPS AND MOTORS

Increasing relief valve settings could cause delimber or component failure resulting in severe personal injury or death. Do not change pressure settings. Do not switch lines from one valve to another.

CTR426

Special tools and training are required to service control valves, cylinders, pumps and motors. If these parts need services, see an authorized dealer.

65

1008

Page 54

MAINTENANCE SAFETY

WARNING

NOTICE

WARNING

DURING MAINTENANCE

SUPPORT COMPONENTS

ber or delimber parts, if a hose breaks or a control is moved, machine parts such as boom or attachment may fall resulting in serious injury or death. Provide support for components. DO NOT depend on hydraulic cylinders for support.

UNAUTHORIZED WELDING

can cause structural failure and/or severe personal injury or death.

When working on delim-

Unauthorized welding

DO NOT weld on any structural member. Any unauthorized welding or repair will void the Warranty.

Once authorized, turn battery disconnect switch OFF and place welding ground (stinger) as close to the weld site as possible. Do not allow weld current to pass through bearings or pivot points.

Welding can cause damage to the electrical system.

CTR426

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Page 55

MAINTENANCE SAFETY

AFTER MAINTENANCE

DISPOSING OF WASTE

Follow local, state, federal, and international regulations when disposing of waste. Waste may include, but is not limited to oil, fuel, coolant, brake uid, lters, and batteries.

Use leakproof containers when draining uids. Do not use food or beverage containers. Do not pour waste on the ground, down a drain, or into any water source.

Clean up all spilled fuel, oil, grease, etc. and dispose of per local, state, federal, or international regulations.

STORING FLAMMABLE MATERIALS

• Do not smoke where ammable materials are

stored.

• Store fuels and lubricants in properly marked

containers.

• Store oily rags and other ammable materials in

protective containers.

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Page 56

MAINTENANCE SAFETY

NOTES

CTR426

68

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Page 57

SCHEDULED AND PERIODIC MAINTENANCE SERVICES

WARNING

SCHEDULED AND PERIODIC

MAINTENANCE SERVICES

LUBRICATION NOTICE

Listed maintenance intervals are for normal use applications. When greasing lubrication ttings, if grease is not forced out of bushing ends with the recommended shots, increase number of shots until grease is forced out. If grease cannot be forced out, check for blocked grease passageways.

If lubricated areas are dry at the end of a normal operating day, increase frequency of lubricating intervals rather than increaseing amount of grease used in one lubrication period.

POSITION DELIMBER FOR MAINTENANCE

To avoid serious personal injury or property damage, follow the steps below before performing any maintenance on this machine.

1. Shut engine down.

2. Move joystick controls in all directions to relieve

hydraulic pressure and discharge accumulator.

3. Remove key from ignition switch.

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71

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Page 58

NOTICE

WARNING

14, 18

SCHEDULED AND PERIODIC MAINTENANCE SERVICES

MAINTENANCE CHART

5, 6

7, 10

14, 18

2 , 3, 4, 7, 10

1, 9, 11, 12, 14

Use the KEY # and COMPONENT for locating the proper service and maintenance procedures in this section.

AS REQUIRED

KEY COMPONENT SERVICE SPECIFICATION MATERIAL USED

1. Cylinder Rods Clean and Grease Clean, then apply thin grease coat Prem. Grease

2. Saw Chain Replace See details in section Oregon 11BC or 11H Chain

3. Saw Chain Sharpen See details in section Files

4. Saw Bar Recondition See details in section

5. Delimber Blades Sharpen See details in section Use genuine parts

6. Delimber Blades Replace See details in section Use genuine parts

7. Bar Oil Flow Adjust See details in section

DAILY OR EVERY 10 HOURS

KEY COMPONENT SERVICE SPECIFICATION MATERIAL USED

8. Topping Saw Oiler Fill Check level daily; ll if necessary. Bar and Chain Oil

WEEKLY OR EVERY 50 HOURS

KEY COMPONENT SERVICE SPECIFICATION MATERIAL USED

9. Knife Arm Tubes Lubricate Lubricate until grease is forced out Prem. Grease

10. Topping Saw Cylinder Lubricate Lubricate until grease is forced out Prem. Grease

11. Knife Arm Cylinder Lubricate Lubricate until grease is forced out Prem. Grease

12. Knife Arm Shaft Bearing Lubricate Lubricate until grease is forced out Prem. Grease

13. Feed Roller Shaft Lubricate Lubricate until grease is forced out Prem. Grease

14. Cradle Roller Lubricate Lubricate until grease is forced out Prem. Grease

15. Knife Arm Blades Inspect Inspect for knicks, gaps and rolls.

16. Large Rotation Bearing Lubricate Lubricate with 3-5 shots of grease Prem. Grease

17. Saw Bar Bearing Lubricate Lubricate until grease is forced out Prem. Grease

MONTHLY OR EVERY 250 HOURS

KEY COMPONENT SERVICE SPECIFICATION MATERIAL USED

18. Cradle Roller Adjust See details in section

authorized dealer for diagnosis and repair or replacement.

CTR426

Lubricate with Premium Moly-Lith EP #2 Grease.

Do not weld on structures. Immediately report structural problems (cracks) to an

72

1008

Page 59

SCHEDULED AND PERIODIC MAINTENANCE SERVICES

HYDRAULIC PRESSURE

For delimbers mounted on a loader or trailer, remove

the accumulator box cover to access parts that supply hydraulic pressure to operate the delimbing blades and topping saw. The parts are numbered in the drawing and listed below:

Description PSI kPa

1. Nitrogen charge and 315 2172

check port

2. 5-Gallon nitrogen over

hydraulic accumulator

3. Relief cartridge 1700 11.722

for OPEN

4. Relief cartridge 500-700 3448-4827

for CLOSE

5. CLOSE line to

delimber

6. OPEN line to

delimber

7. Safety accumulator

bleed valve

8. Flow control valve

9. Pressure line 2250-3500 15,514-24,133

G.155.05

CTR426

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Page 60

SCHEDULED AND PERIODIC MAINTENANCE SERVICES

WARNING

PREPARING FOR SAW BAR AND CHAIN MAINTENANCE

Lowering the topping saw bar by hand can cause severe personal injury or death.

Follow the steps below to perform any chain or bar maintenance.

LOADER MOUNTED DELIMBERS WITHOUT AUTOBARUP FEATURE

1. Close delimber knives.

2. Depress rocker switch to lower saw bar.

3. Shut loader engine down.

4. Remove key.

5. Discharge accumulator.

6. Perform saw or bar maintenance.

7. Close accumulator bleed valve in accumulator box.

8. Start loader engine.

9. Depress rocker switch to raise saw bar.

LOADER MOUNTED DELIMBERS WITH AUTOBAR UP FEATURE

1. Turn toggle switch supplied with auto-bar-up system to OFF position.

2. Close delimber knives.

3. Depress rocker switch to lower saw bar.

4. Turn loader engine o.

5. Remove key.

6. Discharge accumulator.

7. Perform saw or bar maintenance.

8. Close accumulator bleed valve in accumulator box.

9. Turn toggle switch to ON position.

10. Start loader engine.

11. Depress rocker switch to raise saw bar.

Keep several chain loops on hand for quick change to save downtime on the job.

Caterpillar Forest Products recommends that chains be trued and sharpened by a saw

CTR426

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Page 61

SCHEDULED AND PERIODIC MAINTENANCE SERVICES

AS REQUIRED

1. CLEAN AND GREASE CYLINDER RODS

All exposed cylinder rods should be wiped clean when dirty. After wiping cylinder rods clean, wipe a thin lm of grease onto the cleaned surfaces.

CTR426

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Page 62

WARNING

SCHEDULED AND PERIODIC MAINTENANCE SERVICES

AS REQUIRED

2. REPLACE SAW CHAIN

Servicing system under pressure can result in serious personal injury or death. Always relieve pressure before performing service.

0151.06

141.06

knife arms, turn unit o and discharge the accumulator before performing any maintenance or service to the delimber. Failure to do so could result in severe personal injury or death.

Wear eye and personal protection equipment (PPE)!

1. Lower saw bar.

2. Shut machine down.

3. Remove key.

4. Discharge accumulator.

5. Place collar bar over end of saw bar located in saw

box (A).

6. Insert load binder assembly end (B) into hole on

saw bar (C).

binder assembly is properly engaged in the saw bar hole before engaging chain removal tool. Failure to do so could result in severe personal injury.

Always close delimber

Verify that pin on load

140.06

7. Attach load binder assembly to collar bar (D).

006.06

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Page 63

WARNING

Load Binder Assy

SCHEDULED AND PERIODIC MAINTENANCE SERVICES

AS REQUIRED

REPLACE SAW CHAIN, CONT.

pressure can result in serious personal injury or death. Always relieve pressure before performing service.

8. Compress saw bar by tightening lever (E) on load

binder assembly.

9. Remove old chain from saw bar and sprocket.

10. Visually inspect saw bar and sprocket for any dam-

age. Replace if damaged.

147.06

11. Lay the new chain out in a loop.

12. Install new chain making sure chain is properly

aligned with the bar and sprocket. If teeth do not point in the proper direction, op the loop over and repeat this step.

13. Loosen lever (E) on load binder assembly, remove

chain removal tool.

14. Store chain removal tool in a secure location.

Collar Bar

After the chain has run for approximately 15 minutes, stop and check the chain tension.

Servicing system under

10083564.06

CTR426

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SCHEDULED AND PERIODIC MAINTENANCE SERVICES

NOTICE

WARNING

AS REQUIRED

3. SHARPEN SAW CHAIN

and/or other material can cause severe personal injury or death. Wear personal protection equipment (PPE) such as a face shield or safety goggles.

Weather, soil and terrain determine how often the chain requires sharpening. Generally, sharpening is necessary only once or twice weekly. If the saw strikes hard foreign objects embedded in logs, extra sharpening may be required.

Filing or cutting chain teeth will shorten teeth and cause drag teeth to be too long. This will cause the saw to chatter up and down during operation. To prevent this, use a at le. Filing one or two strokes on drag teeth every other sharpening should be sucient.

Although 11BC and 11H type chains may be handled, it is more practical to machine-grind the chain.

Flying debris, tree limbs

MACHINEGRINDING TEETH

Set grinding wheel at 30 degrees for an 11BC chain, and 40 degrees for an 11H chain to achieve proper top plate angle.

Tilt grinding wheel 60 degrees for an 11BC and 50 degrees for an 11H chain to vise jaws to achieve proper side plat angle. Use a maximum 5/16 inch (11 mm) thick grinding wheel for Oregon 11BC and 11H chains.

Dress grinding wheel often to maintain correct shape (as shown). Use either rotary wheel dresser or dressing brick. The radius area of the wheel marked X grinds the 90 degree side angle.

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Page 65

SCHEDULED AND PERIODIC MAINTENANCE SERVICES

NOTICE

WARNING

AS REQUIRED

4. RECONDITION SAW BAR

and/or other material can cause severe personal injury or death. Wear personal protection equipment (PPE) such as a face shield or safety goggles, leather gloves and protective sleeves at all times around blades.

knife arms, turn unit o and discharge the accumulator before performing any maintenance or service to the delimber. Failure to do so could result in severe personal injury or death.

1. Discharge accumulator.

2. Remove chain (see replace saw chain earlier in this

section) and saw bar. After saw bar is removed, place bar on a smooth, at surface.

3. Place a square against the saw bar. Note the

distance between saw bar and square. If the distance is greater than 1/16 inch (1.5 mm), repair is needed.

Flying debris, tree limbs

Always close delimber

4. Using a disc sander, grind the rails evenly. Be care-

ful not to distort the normal curve of the saw bar.

5. SHARPEN DELIMBER KNIFE ARM

BLADES

1. Discharge accumulator.

2. Check knife arm blades weekly for gapped, rolled

or notched edges. Small nicks, gaps and rolls can be easily removed with an 8-inch or 10-inch at mill bastard le.

3. Sharpen blades as is done for an ax or bladed

cutting tool. The blades are made of an alloy steel that tends to self-sharpen, causing edges to wear thin. This may cause edges to roll, dulling the blades. Blades should need ling once a month.

Do not sharpen knife arm

blades unless absolutely necessary.

CTR426

4. When blades require sharpening, le the outside

to a keen edge using the recommended at le. After a keen edge is achieved on the outside, touch up the inside. DO NOT put a heavy sharpening on the inside. Remember, touch up only.

79

1008

Page 66

SCHEDULED AND PERIODIC MAINTENANCE SERVICES

NOTICE

WARNING

AS REQUIRED

Knife Arm Access Covers

Shaft & Collar

FIG. 1

Blade Arm Assemby

Weldment

Bottom Knife/

Chip Breaker

100822841.05

1 1/2” Roller

Retaining Nut

6. REPLACE DELIMBER KNIFE ARM

BLADES

Equipment damage, severe personal injury or death can occur if delimber lower blade arms are mishandled or dropped.

Always close delimber knife arms, turn unit o, block out tilting on base and discharge the accumulator before performing any maintenance or service to the delimber. Failure to do so could result in severe personal injury or death.

1. Remove knife arm access covers, see Fig. 1.

2. The blade arm assembly to be removed must be

securely supported before proceeding to the next step. Doing so will ensure the blade arm assembly does not fall or shift its position when the pivot shaft is moved.

3. Access knife arm cylinder through the knife arm

access cover. Disconnect grease lines from pin assembly and knife arm. Disconnect knife arm cylinder from the damaged blade arm assembly.

Roller Pin

Knife Arm

Assembly

Pivot

Shaft

FIG. 2

FIG. 3

10082284.05

Knife Arm

Assembly

5/8” Bolt &

Nylock Nut

100822871.05

4. Locate shaft collar which is secured to the blade

arm pivot shaft by a 5/8 inch bolt and nylock nut. The collar is located on the end of the shaft going through the hole in the bottom knife/chip breaker weldment. Remove the 5/8 inch bolt and nylock nut, see Fig. 3.

5. Locate 1 1/2 inch delimber roller retaining nut.

Loosen 1 1/2 inch delimber roller retaining nut and remove roller pin, see Fig. 2.

The roller must be securely

supported.

6. Remove roller.

7. Drive pivot shaft through hole in the shaft sup-

porting plate located near the roller assembly. Once the shaft clears the hole located in the weldment wall, it can be pulled through the blade arm assembly from the opposite end of the shaft.

8. Remove blade arm assembly by sliding the gear

end of the blade arm assembly through the knife arm access cover.

CTR426

710

1008

Page 67

WARNING

Knife Arm Access Covers

SCHEDULED AND PERIODIC MAINTENANCE SERVICES

Shaft & Collar

FIG. 1

Blade Arm Assemby

Weldment

Bottom Knife/

Chip Breaker

100822841.05

AS REQUIRED

6. REPLACE DELIMBER KNIFE ARM BLADES, CON TINUED

REASSEMBLING DELIMBER BLADE ARMS

(Typical for either right or left arm replacement)

Equipment damage, severe personal injury or death can occur if delimber lower blade arms are mishandled or dropped.

1. The blade arm assembly must be securely sup-

ported before proceeding. Doing so will ensure the blade arm assembly does not fall or shift its position when the pivot shaft is reinstalled.

2. Reinstall blade arm assembly through knife arm

access cover.

3. Slide pivot shaft through hole in bottom knife/

chip breaker weldment, blade arm assembly, and through appropriate hole in the shaft supporting plate.

Knife Arm Assembly

Pivot

Shaft

FIG. 2

Knife Arm Assembly

5/8” Bolt &

Nylock Nut

100822871.05

4. With arms of both blade arm assemblies open and

resting on timing plates, raise new blade arm assembly.

At this point it should be possible to close and

reopen opposite blade arm assembly without any restriction of movement. Move to the opposite side of the unit and raise the newly installed blade arm assembly. Both blade arm assemblies must be able to close and reopen without any restrictions.

5. Reconnect knife arm cylinder to blade arm assem-

bly. Reconnect grease line to pin assembly and knife arm.

6. Reconnect shaft collar, located on the end of the

shaft that goes through hole in bottom knife/chip breaker weldment. Replace the 5/8 inch bolt and nylock nut.

CTR426

711

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Page 68

SCHEDULED AND PERIODIC MAINTENANCE SERVICES

AS REQUIRED

7. ADJUST BAR OIL FLOW

If it is necessary to adjust the oil ow to the bar and chain, do the following:

1. Turn ow needle valve (A) clockwise to REDUCE

oil ow to the bar and chain; counterclockwise to INCREASE oil ow to the bar and chain.

100815062.04

CTR426

712

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Page 69

SCHEDULED AND PERIODIC MAINTENANCE SERVICES

WARNING

NOTICE

DAILY OR EVERY 10 HOURS

PERFORM A DAILY VISUAL INSPECTION

Failure to perform a daily inspection of machine can result in machine damage and severe personal injury or death.

In addition to the required daily inspection outlined in Pre-Start Inspection section perform a daily inspection of the following components:

• Structures • Load-bearing items

• Hoses • All mountings

• Cradle Rollers • Saw bar and chain

2.05

can cause structural failure and/or severe personal injury or death. DO NOT weld on any structural member. Any unauthorized welding or repair will void the warranty.

Unauthorized welding

G020.05

Immediately report any structural problems (cracks) to an authorized dealer for diagnosis and repair or replacement.

Unauthorized welding can cause damage to the electrical system.

8. CHECK OIL LEVEL FOR TOPPING SAW

OILER

The topping saw oil tank ller cap is located on the left side of the delimber toward the top, under topping saw access cover (B).

Tank capacity is 8.4 gallons (31.75 L).

The topping saw oiler system must be bled of air any time the system runs dry. To bleed the system, see page 4-8 of this manual.

CTR426

G.151.05

713

1008

Page 70

SCHEDULED AND PERIODIC MAINTENANCE SERVICES

WARNING

WEEKLY OR EVERY 50 HOURS

PERFORM A WEEKLY INSPECTION

INSPECTION GUIDELINES

1. Clean structure thoroughly. Remove all dirt, mud,

grease, oil, debris, and snow.

2. Look for rust lines in paint and missing or cracked

paint. These are indications of crack sites.

3. Inspect all welds.

4. Check all cylinders and pin keeper retainers for

broken fasteners. If broken or damaged, replace with new fasteners.

can cause structural failure and/or severe personal injury or death. Immediately report structural problems (cracks) to your authorized dealer for

2.05

diagnosis and repair or replacement.

Unauthorized welding

G020.05

DO NOT weld on any structural member. Any unauthorized welding or repair will void your warranty.

Once authorized, turn battery disconnect switch OFF and place welding ground (stinger) as close to the weld site as possible. Do not allow weld current to pass through bearings or pivot points.

6. Inspect safety decals. Replace safety decals

immediately if they are damaged, missing, or hard to read. Contact your authorized dealer for replacement safety decals. Authorized dealers will provide free replacement safety decals if you give them a valid serial number for your machine.

CTR426

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Page 71

SCHEDULED AND PERIODIC MAINTENANCE SERVICES

ROTATIONAL BEARING

SAW BEARING

KNIFE #4 PIN ROD END

KNIFE #3 PIN ROD END

KNIFE #2 PIN ROD END

KNIFE #2 TUBE

KNIFE #3 TUBE

KNIFE #4 TUBE

SAW CYL ROD END

CRADLE PIVOT

10065080 12/04 Rev B 01/06

ROTATIONAL BEARING

SAW BEARING

KNIFE #4 PIN ROD END

KNIFE #3 PIN ROD END

KNIFE #2 PIN ROD END

KNIFE #2 TUBE

KNIFE #3 TUBE

KNIFE #4 TUBE

SAW CYL ROD END

CRADLE PIVOT

10065080 12/04 Rev B 01/06

ROTATIONAL BEARING

SAW BEARING

KNIFE #4 PIN ROD END

KNIFE #3 PIN ROD END

KNIFE #2 PIN ROD END

KNIFE #2 TUBE

KNIFE #3 TUBE

KNIFE #4 TUBE

SAW CYL ROD END

CRADLE PIVOT

10065080 12/04 Rev B 01/06

WEEKLY OR EVERY 50 HOURS

View from Underneath Delimber

LUBRICATE DELIMBER

Lubricate delimber using the Lubrication Bank (A).

G13804

9. LUBRICATE KNIFE ARM TUBES

Lubricate knife arm tubes (B, C & D) with Premium Moly-Lith #2 grease until grease is forced out.

10065080

10. LUBRICATE TOPPING SAW CYLINDER

Lubricate topping saw cylinder (E) with Premium MolyLith #2 grease until grease is forced out.

10065080

11. LUBRICATE KNIFE ARM CYLINDER

Lubricate knife arm cylinder (F, G & H) with Premium Moly-Lith #2 grease until grease is forced out.

CTR426

10065080

715

1008

Page 72

ROTATIONAL BEARING

SAW BEARING

KNIFE #4 PIN ROD END

KNIFE #3 PIN ROD END

KNIFE #2 PIN ROD END

KNIFE #2 TUBE

KNIFE #3 TUBE

KNIFE #4 TUBE

SAW CYL ROD END

CRADLE PIVOT

10065080 12/04 Rev B 01/06

SCHEDULED AND PERIODIC MAINTENANCE SERVICES

WEEKLY OR EVERY 50 HOURS

12. LUBRICATE SAW BEARING

Lubricate saw bearing (A) with Premium Moly-Lith #2 grease until grease is forced out.

10065080

13. LUBRICATE FEED ROLLER SHAFTS

Lubricate feed roller shafts (B & C) with Premium MolyLith #2 grease until grease is forced out.

10082284.05

14. LUBRICATE CRADLE ROLLERS

Lubricate cradle rollers (D) with Premium Moly-Lith #2 grease until grease is forced out.

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716

1008

Page 73

SCHEDULED AND PERIODIC MAINTENANCE SERVICES

WEEKLY OR EVERY 50 HOURS

15. INSPECT KNIFE ARM BLADES

Inspect knife arm blades for gapped, rolled, or notched edges. Small knicks, gaps and rolls can be easily removed with an 8 or 10-inch at mill bastard le.

Touch up blades as is done for an ax or bladed cutting tool. Blades should need ling once a month. Blades are made of alloy steel that tends to self-sharpen, causing edges to wear thing. This may cause blade edges to roll, dulling the blades.

16. LUBRICATE LARGE ROTATION

BEARING

Lubricate large rotation bearing (B) weekly with Premium Moly-Lith #2 grease, 3-5 shots. If delimber is used intermittently or infrequently, less frequent lubrication intervals are appropriate.

10081430.04

17. LUBRICATE SAW BAR BEARING

Lubricate saw bar bearing (C) weekly with Premium Moly-Lith #2 grease until grease is forced out. If delimber is used intermittently or infrequently, less frequent lubrication intervals are appropriate.

CTR426

G14304

717

1008

Page 74

SCHEDULED AND PERIODIC MAINTENANCE SERVICES

MONTHLY OR EVERY 250 HOURS

18. ADJUST CRADLE ROLLERS

Adjust cradle rollers using the support roller adjustment bolts (A) located beneath the roller mounting brackets. Adjust the roller to make contact only. Turn bolt clockwise to raise roller, clockwise to lower roller.

10081430.04

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WARNING

TRANSPORTING

Failure to follow these important safety rules could result in serious personal injury or death.

• Remove any obstacles from trailer oor.

• Always use a ramp of proper height, loading angle

and strength.

• Load and unload trailer on level ground.

• Properly chain load to trailer bed.

• During transport, observe height clearance of

obstructions such as overhead bridges.

During transport, the delimber cradle is secured to the subbase with transport securing chains. These chains must be hooked to the cradle before transport (A and B). If the chains are not attached, the delimber head can rotate freely, which could cause damage to the cradle mount and the delimber.

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NOTES

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STORAGE

NOTICE

STORAGE

PREPARING DELIMBER FOR STORAGE

If possible, store delimber under cover and out of weather, in well-ventilated area. Block

tires to prevent accidental machine movement.

If delimber will be stored for an extended period or stored in a corrosive environment (such as salt air or industrial pollution), using a sponge, apply Chrome Kote Corrosion Preventive to portions exposed to air. Also apply Chrome Kote Corrosion Preventive to all wiring connections. Reapply Chrome Kote Corrosion Preventive every 3 months while delimber remains in storage.

1. Top o the hydraulic system with hydraulic uid.

2. Remove saw bar and saw chain. Submerse chain in a container of chain oil or engine oil to prevent rust.

3. Wash down saw bar with kerosene or a nonammable solvent to remove tree sap and gum. Scrape out any

material packed in saw bar groove with a piece of 0.122 thickness stock. Oil saw bar and wrap in oiled craft paper.

4. Clean and lubricate exposed saw bars, guide arm and blade arm cylinder rods with a light lm of grease.

5. Lubricate bearings and ttings as directed in Scheduled and Periodic Maintenance Services section.

6. Store the delimber in an area away from corrosive chemicals or fumes.

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STORAGE

TAKING DELIMBER OUT OF STORAGE

1. Clean machine and attachments thoroughly.

2. Check all uid levels. If low, check for leaks. Add uids as required.

3. Start machine. Cycle all hydraulic functions several times.

4. Check condition of all hoses and connections.

5. Review this operator’s manual.

Chrome Kote Corrosion Preventive is compatible with hydraulic oil and seal materials. It does not have to be removed when taking machine out of storage. When using a dierent brand of corrosion preventive, be sure to check manufacturer’s recommendations on whether it should be removed prior to operation.

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SPECIFICATIONS

C T R 4 2 6 D E L I M B E R

CTR 426 DELIMBER SPECIFICATIONS

CTR 426 DELIMBER APPLICATIONS

Small, Medium & Large Softwoods

Medium Hardwoods

smetS elpitluMsdoowdraH egraL

26” (1) 21” wide x 16” diameter NA 4 14” Standard 55 gpm low ow; up to 90 gpm standard ow 44”

X Optional Auto-tension 3/4 66 Automatic, 8.25 Gallon Reser voir Capacity Bore -- 2” with Cushions, Rod -- 1” Direct 4” Case Hardened, 9 Teeth 22” Diameter 83”, Length, 86” Width, 99.7” Height H-D Rotating Cradle, Pins -- 3” Diameter 7500 Lbs. with Accumulator Box

Hydraulic cushions in the three knife blade cylinders increases knife life.

Four knife design opens wide for increased stem capacity and handles tree diameters up to 24”.

Larger throat opening (26” nominal) 34 3/8” at top and 21 1/2” at bottom for easier and quicker loading.

5” diameter knife blade tubes pivoting on 1 7/8” shafts for increased strength.

Centralized lubrication allows easier maintenance from ground level.

Improved cradle design and bearing attachment to uniformly transfer stress loads.

One piece tubular log guide and boxed steel frame is more rigid for increased strength.

Topping saw with auto tensioner design developed to maintain production and minimize maintenance.

Knives sharpened on both sides to allow pull/push delimbing and increased production.

THE CTR 426 DELIMBER.

The new CTR 426 delimber contains design improvements and enhancements that will improve production, reliability, and component life. The knife design with 26” throat is ideal for multiple stem softwood, large pine and medium size hardwood applications. The 426 delimber also features a 44” topping saw with Auto-tensioner System that increases production and minimizes chain maintenance.

Throat Opening Nose Rollers Throat Rollers Number Knives Alloy Steel Blades Hydraulic Self-tensioning Blade Feed Required Flow from Loader Roller Tip Saw Bar Topping Saw Motor

Standard Low Flow

Oregon Brand 11H Bar Chain

Pitch

Drive Links Chain Oiler Knife Cylinders Saw Drive Drive Sprocket Rotating Bearing Frame Dimensions Mounting Base T

otal Weight

SPECIFICATIONS

CTR 426 DELIMBER

CTR RESERVES THE RIGHT TO CHANGE SPECIFICATIONS WITHOUT NOTICE TO FOLLOW ITS POLICY OF

CTR426

CONSTANTLY IMPROVING PRODUCTS.

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SPECIFICATIONS

HYDRAULIC CONNECTION TORQUE SPECIFICATIONS

SAE 37° FLARE CONNECTION

HOW CONNECTION WORKS:

This connection seals on two mating 37° seats.

HOW TO TIGHTEN CONNECTION: Use a torque wrench to rotate and tighten nut. Turn nut to value shown in table below.

TORQUE

DASH SIZE THREAD SIZE INCHLBS NEWTONMETERS

-3 3/8 - 24 8-9 11-12

-4 7/16 - 20 11-12 15-16

-5 1/2 - 20 14-16 19-21

-6 9/16 - 18 18-20 25-27

-8 3/4 - 16 36-39 49-53

-10 7/8 - 14 57-63 77-84

-12 1 1/16 - 12 79-88 108-118

-14 1 3/16 - 12 83-92 113-124

-16 1 5/16 - 12 108-113 147-153

-20 1 5/8 - 12 127-133 172-180

-24 1 7/8 - 12 158-167 215-225

-32 2 1/2 - 12 245-258 332-350

The above torque values are good for:

• machined adapters and hose ttings

• ared tubed (with sleeve and nut)

• universal radius ared tubes

CTR RESERVES THE RIGHT TO CHANGE SPECIFICATIONS WITHOUT NOTICE TO FOLLOW ITS POLICY OF

CONSTANTLY IMPROVING PRODUCTS.

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SPECIFICATIONS

HYDRAULIC CONNECTION TORQUE SPECIFICATION

ORING FACE SEAL CONNECTION

HOW CONNECTION WORKS

This connection seals with an o-ring on the male against a at surface.

HOW TO TIGHTEN CONNECTION

Use a torque wrench to rotate and tighten nut. Turn nut to value shown in table below.

TORQUE

DASH SIZE THREAD SIZE INCHLBS NEWTONMETERS

-4 9/16 - 18 19 26

-6 11/16 - 16 31 42

-8 13/16 - 16 46 62

-10 1-14 71 96

-12 1 3/16 - 12 91 123

-16 1 7/16 - 12 130 176

-20 1 11/16 - 12 171 232

-24 2 -12 210 285

Make sure the o-ring does not fall out of the male end before connection is made. Proper lubrication helps.

CTR RESERVES THE RIGHT TO CHANGE SPECIFICATIONS WITHOUT NOTICE TO FOLLOW ITS POLICY OF

CONSTANTLY IMPROVING PRODUCTS.

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SPECIFICATIONS

TORQUE CHART FOR FASTENERS

This torque chart applies to lubricated threads for bolts, capscrews, and studs.

These specications do not apply to self-locking nuts or capscrews. To obtain proper torque, do not use lock washers. Hardened at washers are recommended.

GRADE 8 FASTENERS

COARSE THREAD FINE THREAD

Nominal Size Torque (ft-lbs) Torque (N•m) Nominal Size Torque (ft-lbs) Torque (N•m)

1/4 - 20 8-9 11-12

5/16 - 18 17-19 23-26

3/8 - 16 33-36 45-49

7/16 - 14 52-57 71-77

1/2 - 13 76-84 103-114

9/16 - 12 105-115 142-156

5/8 - 11 162-178 220-241

3/4 - 10 266-294 361-399

7/8 - 9 437-483 593-655

1 - 8 646-714 876-968

1 1/8 - 7 912-1008 1237-1367

1 1/4 - 7 1292-1428 1752-1936

1 1/2 - 6 2242-2478 3040-3360

1 3/4 - 5 3048-3688 4133-5001

2 - 4 1/2 4610-5096 6251-6910

1/4 - 28 9-10 12-14

5/16 - 24 19-21 26-28

3/8 - 24 35-37 46-50

7/16 - 20 53-58 72-79

1/2 - 20 86-94 117-128

9/16 - 18 124-136 168-184

5/8 - 18 171-189 232-256

3/4 - 16 304-336 412-456

7/8 - 14 475-525 644-712

1 - 12 703-777 953-1054

1 1/8 - 12 979-1081 1328-1466

1 1/4 - 12 1425-1575 1932-2136

1 1/2 - 12 2527-2793 3427-3787

1 3/4 - 12 4004-4424 5429-5999

2-12 6116-6760 8293-9167

Use these torque values unless otherwise specied. Exceptions are noted where applicable. SAE Grade 8 fasteners (A.S.T.M. A354, Grade BD) are made from quenched and tempered medium carbon steel. Grade 8 fasteners have 6 equally spaced radial lines embossed on the head of the fastener (see illustration below).

CTR RESERVES THE RIGHT TO CHANGE SPECIFICATIONS WITHOUT NOTICE TO FOLLOW ITS POLICY OF

CONSTANTLY IMPROVING PRODUCTS.

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SPECIFICATIONS

CYLINDER TORQUE SPECIFICATIONS

G.103.04

CTR RESERVES THE RIGHT TO CHANGE SPECIFICATIONS WITHOUT NOTICE TO FOLLOW ITS POLICY OF

CONSTANTLY IMPROVING PRODUCTS.

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SPECIFICATIONS

NOTES

CTR RESERVES THE RIGHT TO CHANGE SPECIFICATIONS WITHOUT NOTICE TO FOLLOW ITS POLICY OF

CONSTANTLY IMPROVING PRODUCTS.

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SERIAL NUMBERS

Delimber model and serial number

Topping saw motor model and serial number

Saw bar and chain model and serial numbers

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SERIAL NUMBERS

NOTES

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MATERIAL SAFETY DATA SHEETS

MSDS

Federal Occupational Safety and Health Administration (OSHA) Standard 29 CFR 1910.1200, and in some cases state and local right-to-know laws may required specic material safety data sheets (MSDS) be made available to employees before operating this equipment. This may include information on substances contained in this equipment such as antifreeze, brake uid, battery acid, hydraulic uid, and R-134A refrigerant (if machine is equipped with air conditioning).

Caterpillar Forest Products will provide, free of charge, MSDS that apply to this machine. Simply request them from an authorized dealer.

To ensure a prompt response to an MSDS request, include return address (including zip or postal code) and machine model number and serial number with request.

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NOTES

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GLOSSARY

Accumulator - A device that stores uid to assure a

constant supply at working pressure in a hydraulic system.

Bleed - To purge air from a hydraulic line or system.

Chain Pitch - The distance between any two adjacent

links in a saw chain, the measurement being half the distance from the front rivet hole center of one link to the front rivet hole center of the next.

Chain Tooth - A one-piece link having a depth gauge

projection ahead of the cutting edge.

Crimp Fitting - A hose coupling press-tted to the

hose by deforming the metal.

Danger Area - The area around the delimber to be

kept clear of all personnel except machine operators in cabs.

Delimb - To remove tree limbs, leaving the tree stem.

Depth Gauge - The part of a saw chain tooth that

controls the depth of the cut, also called a “stop” or “drag.”

Drive Link - The part of the saw chain driven by the

sprocket.

Goal Post - A nickname given to the delimber stem

guide because it resembles a football goal post.

Hydraulic - Operated by water or other liquids in mo-

tion or under pressure.

Journal - The portion of a shaft or axle containing a

plain bearing.

Joystick - Originally an airplane control, now any stick-

type hand control.

Knuckleboom Loader - A loader with a exibly-joint-

ed boom.

Pedestal - A base for mounting something such as a

delimber.

Remote Control - A unit consisting of a transmitter

and receiver combination.

Slash - What remains of a tree after removal of the

marketable part.

Stem - Tree removed from its stump.

Stump - The part of a tree left in the ground after

removal of the stem.

Tie Strap - The chain link connecting the drive link to

the cutter.

Topping Saw - A saw that cuts o the tree top after

stem is delimbed.

Grapple - A device used to pick up and hold stems for

processing.

Grapple Skidder - A machine used to move logs or

slash.

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CALIFORNIA

Proposition 65 Warning

Diesel engine exhaust and some of its constituents are known to the State of California to cause cancer, birth defects, and other reproductive harm.

Battery post terminals and related accessories contain lead and lead components, chemicals known to the State of California to cause cancer and reproductive harm. Wash hands after handling.

CAT, CATERPILLAR, their respective logos and "Caterpillar Yellow," and the POWER EDGE trade dress as well as corporate and product identity used herein, are trademarks of Caterpillar and may not be used without permission.

2008 Caterpillar

Printed in the U.S.A.

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