Description

Timberjack 848G 660D Skidder Operators Manual

Timberjack 848G 660D Skidder INDEX:

Safety — Safety Features Make Welding Repairs Safely. . . . . . . . . . . . . . 1-4-3
848G/660D Skidder Safety Features . . . . . . . . 1-1-1 Drive Metal Pins Safely . . . . . . . . . . . . . . . . . . 1-4-3
Safety—General Precautions Safety — Safety Signs
Recognize Safety Information. . . . . . . . . . . . . . 1-2-1 848G/660D Skidder Safety Signs . . . . . . . . . . . 1-5-1
Follow Safety Instructions. . . . . . . . . . . . . . . . . 1-2-1
Operate Only If Qualified . . . . . . . . . . . . . . . . . 1-2-1 Operator’s Station
Wear Protective Equipment . . . . . . . . . . . . . . . 1-2-2 Instrument Panel . . . . . . . . . . . . . . . . . . . . . . . 2-1-1
Avoid Unauthorized Machine Modifications. . . . 1-2-2 Instrument Panel Functions . . . . . . . . . . . . . . . 2-1-2
Inspect Machine . . . . . . . . . . . . . . . . . . . . . . . . 1-2-2 Instrument Bulb Test Button . . . . . . . . . . . . . . . 2-1-3
Stay Clear Of Moving Parts . . . . . . . . . . . . . . . 1-2-3 Cab Temperature Control . . . . . . . . . . . . . . . . . 2-1-3
Avoid High-Pressure Fluids . . . . . . . . . . . . . . . 1-2-3 Road and WorkLights . . . . . . . . . . . . . . . . . . . 2-1-5
Handle Starting Fluid Safely . . . . . . . . . . . . . . . 1-2-4 Windshield Washer and Wiper . . . . . . . . . . . . . 2-1-6
Beware Of Exhaust Fumes. . . . . . . . . . . . . . . . 1-2-4 Ignition Switch . . . . . . . . . . . . . . . . . . . . . . . . . 2-1-7
Prevent Fires . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2-5 Battery Disconnect Switch . . . . . . . . . . . . . . . . 2-1-7
Prevent Battery Explosions. . . . . . . . . . . . . . . . 1-2-5 Horn Button . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1-8
Handle Chemical Products Safely. . . . . . . . . . . 1-2-6 Cold Start Pump Unloading Button. . . . . . . . . . 2-1-8
Dispose of Waste Properly . . . . . . . . . . . . . . . . 1-2-6 Cold Weather Starting Aid (Option) . . . . . . . . . 2-1-9
Prepare for Emergencies . . . . . . . . . . . . . . . . . 1-2-6 Electronic Gear Selector (EGS) . . . . . . . . . . . . 2-1-9
EGS Override Switch . . . . . . . . . . . . . . . . . . . . 2-1-9
Safety—Operating Precautions Winch Control Lever . . . . . . . . . . . . . . . . . . . . 2-1-10
Parking Brake Switch . . . . . . . . . . . . . . . . . . . 2-1-10
Use Steps And Handholds Correctly . . . . . . . . 1-3-1
Pedals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1-10
Start Only From Operator’s Seat . . . . . . . . . . . 1-3-1
Transmission De-clutch Switch. . . . . . . . . . . . 2-1-11
Use And Maintain Seat Belt . . . . . . . . . . . . . . . 1-3-1
Axle Differential LockSwitch . . . . . . . . . . . . . 2-1-11
Prevent Unintended Machine Movement . . . . . 1-3-2 First Aid Kit Location . . . . . . . . . . . . . . . . . . . 2-1-11
Avoid WorkSite Hazards . . . . . . . . . . . . . . . . . 1-3-2 Alternate Exit . . . . . . . . . . . . . . . . . . . . . . . . . 2-1-12
Operate Machine Safely . . . . . . . . . . . . . . . . . . 1-3-3 Fire Extinguisher . . . . . . . . . . . . . . . . . . . . . . 2-1-12
Keep Riders Off Machine . . . . . . . . . . . . . . . . . 1-3-3 Air Vents . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1-12
Avoid Backover Accidents . . . . . . . . . . . . . . . . 1-3-4 Fuse Panel — Lower . . . . . . . . . . . . . . . . . . . 2-1-13
Avoid Machine Tip Over . . . . . . . . . . . . . . . . . . 1-3-4 Radio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1-13
Operating on Slopes. . . . . . . . . . . . . . . . . . . . . 1-3-5 Fuse Panel — Upper . . . . . . . . . . . . . . . . . . . 2-1-13
Operating Or Traveling On Public Roads . . . . . 1-3-5 Two-Way Radio Location . . . . . . . . . . . . . . . . 2-1-14
Inspect and Maintain ROPS . . . . . . . . . . . . . . . 1-3-5 Pressurized Water Tank(Option) . . . . . . . . . . 2-1-14
Keep the Operator Protective Structure Seat Controls . . . . . . . . . . . . . . . . . . . . . . . . . 2-1-14
(OPS) in Place . . . . . . . . . . . . . . . . . . . . . . . 1-3-6 Door Stop. . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1-15
Add And Operate Attachments Safely . . . . . . . 1-3-6
Operating the Machine
Safety—Maintenance Precautions Pre-Start Checks . . . . . . . . . . . . . . . . . . . . . . . 2-2-1
ParkAnd Prepare For Service Safely. . . . . . . . 1-4-1 Before Starting the Engine . . . . . . . . . . . . . . . . 2-2-2
Service Cooling System Safely. . . . . . . . . . . . . 1-4-1 Starting the Engine — Above 4°C (40° F) . . . . 2-2-3

Starting the Engine — Below 4°C (40° F). . . . . 2-2-4 Maintenance — As Required
Engine Warm Up . . . . . . . . . . . . . . . . . . . . . . . 2-2-5 Coolant System Cleaning . . . . . . . . . . . . . . . . . 3-3-1
Idling the Engine . . . . . . . . . . . . . . . . . . . . . . . 2-2-5 Bleed Fuel System. . . . . . . . . . . . . . . . . . . . . . 3-3-1
Cold Weather Warm-Up . . . . . . . . . . . . . . . . . . 2-2-6 Clear Cab Drain Holes . . . . . . . . . . . . . . . . . . . 3-3-3
Stopping the Engine . . . . . . . . . . . . . . . . . . . . . 2-2-7
Reducing Engine Load . . . . . . . . . . . . . . . . . . . 2-2-8 Maintenance — Every 10 Hours or Daily
Engine Break-In Procedure . . . . . . . . . . . . . . . 2-2-8 CheckEngine Oil Level . . . . . . . . . . . . . . . . . . 3-4-1
Operating the Transmission . . . . . . . . . . . . . . . 2-2-9 CheckEngine Air Intake. . . . . . . . . . . . . . . . . . 3-4-1
Steering the Skidder . . . . . . . . . . . . . . . . . . . . 2-2-15 Checkand Clean Engine Air Filter . . . . . . . . . . 3-4-2
Using the Decking Blade . . . . . . . . . . . . . . . . 2-2-15 CheckFuel/Water Separator . . . . . . . . . . . . . . 3-4-2
Using the Winch . . . . . . . . . . . . . . . . . . . . . . . 2-2-16 CheckEngine Coolant Level . . . . . . . . . . . . . . 3-4-3
Using the Grapple . . . . . . . . . . . . . . . . . . . . . 2-2-17 Lubricate Rear Frame Grease Block . . . . . . . . 3-4-3
Roading the Skidder . . . . . . . . . . . . . . . . . . . . 2-2-20 CheckFuel Level . . . . . . . . . . . . . . . . . . . . . . . 3-4-4
Transporting the Skidder . . . . . . . . . . . . . . . . 2-2-21 CheckHydraulic Fluid Level . . . . . . . . . . . . . . . 3-4-4
Towing the Skidder. . . . . . . . . . . . . . . . . . . . . 2-2-22 CheckTransmission Oil Level . . . . . . . . . . . . . 3-4-5
Tilting the Cab . . . . . . . . . . . . . . . . . . . . . . . . 2-2-27 Lubricate Front Frame Grease Blocks . . . . . . . 3-4-6
Lubricate Rear Steering Cylinder Pins . . . . . . . 3-4-6
Lubricate Frame Hinge Pins . . . . . . . . . . . . . . . 3-4-7
Maintenance — Machine Lubricate Decking Blade Pins. . . . . . . . . . . . . . 3-4-7
Maintenance Preparation . . . . . . . . . . . . . . . . . 3-1-1 Lubricate Arch, Boom and Grapple Pins. . . . . . 3-4-8
Fluids and Lubricants Specifications Table . . . . 3-1-2 CheckSnubber Adjustment . . . . . . . . . . . . . . 3-4-10
Break-in Oil . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1-4 Clean External Surfaces & Engine
Diesel Engine Oil . . . . . . . . . . . . . . . . . . . . . . . 3-1-5 Compartment . . . . . . . . . . . . . . . . . . . . . . . 3-4-11
Recommended Hydraulic System Oils . . . . . . . 3-1-6 Fill Windshield Washer Reservoir . . . . . . . . . . 3-4-11
Transmission/Winch Oil . . . . . . . . . . . . . . . . . . 3-1-7 Clean Air Conditioner Primary Filter . . . . . . . . 3-4-12
Axle Oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1-8 CheckWater TankPressure . . . . . . . . . . . . . . 3-4-12
Diesel Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1-9 CheckCab Tilt Locking Pin Bolts . . . . . . . . . . 3-4-14
Low Sulfur Diesel Fuel Conditioner. . . . . . . . . 3-1-10
Diesel Fuel Storage . . . . . . . . . . . . . . . . . . . . 3-1-10 Maintenance — Every 50 Hours or Weekly
Grease . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1-11 Clean Oil Cooler and Radiator Fins . . . . . . . . . 3-5-1
Diesel Engine Coolant . . . . . . . . . . . . . . . . . . 3-1-12 CheckAxle Differential Oil Level . . . . . . . . . . . 3-5-2
Sampling Programs . . . . . . . . . . . . . . . . . . . . 3-1-13 Checkand Clean Axle Breathers . . . . . . . . . . . 3-5-2
Supplemental Coolant Additives . . . . . . . . . . . 3-1-14 CheckFire Extinguisher Pressure. . . . . . . . . . . 3-5-3
Replenishing Supplemental Coolant Inspect For Loose Bolts, Oil Leaks, Wear or
Additives (SCA’s) Between Coolant Damage . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5-3
Changes . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1-15 CheckTire Condition and Pressure . . . . . . . . . 3-5-3
Fire Suppression Water TankFill . . . . . . . . . . 3-1-16 CheckWheel Fastener Torque. . . . . . . . . . . . . 3-5-4
Lubricant Storage . . . . . . . . . . . . . . . . . . . . . . 3-1-16 CheckAir Conditioner Secondary Filter . . . . . . 3-5-4
Alternative and Synthetic Lubricants. . . . . . . . 3-1-17 CheckHeater Air Filter (Cable Option Only) . . . 3-5-4
Mixing of Lubricants . . . . . . . . . . . . . . . . . . . . 3-1-17 CheckAir Conditioner Condenser Fins. . . . . . . 3-5-5
CheckHand Pump Oil Level . . . . . . . . . . . . . . 3-5-5
Maintenance — Periodic Maintenance Maintenance — Every 100 Hours or Two Weekly
Service Your Machine at Specified Intervals. . . 3-2-1 Lubricate Drive Shafts . . . . . . . . . . . . . . . . . . . 3-6-1
Checkthe Hourmeter Regularly . . . . . . . . . . . . 3-2-1
Use Correct Fuels and Lubricants . . . . . . . . . . 3-2-1 Maintenance — Every 250 Hours
Using the Frame Lock . . . . . . . . . . . . . . . . . . . 3-2-1 Drain Water From Fuel Tank . . . . . . . . . . . . . . 3-7-1
Engine Breakin Period. . . . . . . . . . . . . . . . . . . 3-2-2 Clean Transmission Breather . . . . . . . . . . . . . . 3-7-1
Maintenance and Repair Record Change Engine Oil and Filter . . . . . . . . . . . . . . 3-7-2
Keeping System . . . . . . . . . . . . . . . . . . . . . . 3-2-3 Change Hydraulic Oil Filter. . . . . . . . . . . . . . . . 3-7-3
OILSCAN PLUS, COOLSCAN PLUS, CheckStep Condition. . . . . . . . . . . . . . . . . . . . 3-7-4
and 3-Way Coolant Test Kit . . . . . . . . . . . . . 3-2-4
Periodic Maintenance Table . . . . . . . . . . . . . . . 3-2-5 Continued on next page
ii 060104
PN=2
Contents
Page Page
Maintenance — Every 500 Hours Miscellaneous — Troubleshooting
Change Hydraulic Oil . . . . . . . . . . . . . . . . . . . . 3-8-1 General Troubleshooting . . . . . . . . . . . . . . . . . 4-3-1
Change Engine Air Filter Elements. . . . . . . . . . 3-8-2 Diagnose Engine . . . . . . . . . . . . . . . . . . . . . . . 4-3-2
CheckRadiator Hoses . . . . . . . . . . . . . . . . . . . 3-8-2 Diagnose Electrical System . . . . . . . . . . . . . . . 4-3-5
Replace Primary Fuel Filter (Water Diagnose Transmission . . . . . . . . . . . . . . . . . . 4-3-6
Separator). . . . . . . . . . . . . . . . . . . . . . . . . . . 3-8-3 Diagnose Transmission Controller . . . . . . . . . . 4-3-7
Replace Final Fuel Filter. . . . . . . . . . . . . . . . . . 3-8-4 Diagnose Service Brake . . . . . . . . . . . . . . . . . . 4-3-7
Change Transmission Oil Filter. . . . . . . . . . . . . 3-8-6 Diagnose Parking Brake. . . . . . . . . . . . . . . . . . 4-3-8
Inspect Serpentine Belt . . . . . . . . . . . . . . . . . . 3-8-7 Diagnose Drivetrain . . . . . . . . . . . . . . . . . . . . . 4-3-9
CheckEngine Valve Lash Clearance . . . . . . . . 3-8-7 Diagnose Hydraulic Pump . . . . . . . . . . . . . . . 4-3-10
Diagnose Hydraulic Cylinders. . . . . . . . . . . . . 4-3-10
Maintenance — Every 1000 Hours Diagnose Steering System. . . . . . . . . . . . . . . 4-3-11
Change Transmission Oil . . . . . . . . . . . . . . . . . 3-9-1 Diagnose Implements (Decking Blade,
Change Winch Oil . . . . . . . . . . . . . . . . . . . . . . 3-9-3 Arch, Grapple) . . . . . . . . . . . . . . . . . . . . . . 4-3-11
Change Axle Differential Oil . . . . . . . . . . . . . . . 3-9-4 Diagnose Winch . . . . . . . . . . . . . . . . . . . . . . . 4-3-12
Test Engine Coolant . . . . . . . . . . . . . . . . . . . . . 3-9-6 Diagnose Cab Heater . . . . . . . . . . . . . . . . . . . 4-3-13
Diagnose Air Conditioning . . . . . . . . . . . . . . . 4-3-14
Maintenance — Every 2000 Hours
Adjust Engine Valve Lash Clearance . . . . . . . 3-10-1 Miscellaneous — Storage
CheckBrak e Wear . . . . . . . . . . . . . . . . . . . . . 3-10-1 Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4-1
Maintenance — Every 3000 Hours Miscellaneous — Serial Numbers
Change Engine Coolant . . . . . . . . . . . . . . . . . 3-11-1 Keep Machines Secure . . . . . . . . . . . . . . . . . . 4-5-1
Keep Proof of Ownership . . . . . . . . . . . . . . . . . 4-5-1
Miscellaneous — Machine Model and Serial Number Record. . . . . . . . . . . 4-5-2
Checking the Engine Torsional Damper . . . . . . 4-1-1
Cleaning the Crankcase Vent Tube . . . . . . . . . 4-1-1 Miscellaneous — Specifications
Service Batteries Carefully . . . . . . . . . . . . . . . . 4-1-2 660D Cable Skidder Machine Dimensions . . . . 4-6-1
Using Booster Batteries . . . . . . . . . . . . . . . . . . 4-1-3 848G/660D Skidder Machine Dimensions. . . . . 4-6-3
Precautions for Alternator and Regulator . . . . . 4-1-5 130 in. Grapple Head Dimensions . . . . . . . . . . 4-6-5
Welding on Machine. . . . . . . . . . . . . . . . . . . . . 4-1-5 Power Unit Specifications . . . . . . . . . . . . . . . . . 4-6-6
Replacing Fuses. . . . . . . . . . . . . . . . . . . . . . . . 4-1-6 Power Train Specifications . . . . . . . . . . . . . . . . 4-6-7
Inspecting the Air Conditioning System . . . . . . 4-1-8 Brake Specifications . . . . . . . . . . . . . . . . . . . . . 4-6-8
Accelerator Pedal Adjustment. . . . . . . . . . . . . 4-1-12 Electrical System Specifications . . . . . . . . . . . . 4-6-8
Service Brake Pedal Adjustment . . . . . . . . . . 4-1-13 Hydraulic Specifications . . . . . . . . . . . . . . . . . . 4-6-9
Inspecting and Cleaning Windows . . . . . . . . . 4-1-14 Winch Specifications (Grapple Skidder) . . . . . 4-6-12
CheckOil Lines and Fittings. . . . . . . . . . . . . . 4-1-15 Winch Specifications (Cable Skidder) . . . . . . . 4-6-12
Wheel Installation Instructions . . . . . . . . . . . . 4-1-15 Miscellaneous Specifications . . . . . . . . . . . . . 4-6-13

Miscellaneous — Operational Checkout
Operational Checkout. . . . . . . . . . . . . . . . . . . . 4-2-1
Gauge Instrument Panel Checks . . . . . . . . . . . 4-2-1
Ignition System Checks . . . . . . . . . . . . . . . . . . 4-2-3
Brake Checks. . . . . . . . . . . . . . . . . . . . . . . . . . 4-2-4
Driving Checks . . . . . . . . . . . . . . . . . . . . . . . . . 4-2-5
Hydraulic Functions Checks . . . . . . . . . . . . . . . 4-2-8
Winch. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2-11
Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2-18
Heater/Pressurizer and Air Conditioner
Checks . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2-20
Operator’s Compartment Checks . . . . . . . . . . 4-2-22
Miscellaneous Checks . . . . . . . . . . . . . . . . . . 4-2-24

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