John Deere 848G SKIDDER Operator’s Manual OMF383045 – PDF DOWNLOAD

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John Deere 848G SKIDDER Operator’s Manual OMF383045 – PDF DOWNLOAD

FILE DETAILS:

John Deere 848G SKIDDER Operator’s Manual OMF383045 – PDF DOWNLOAD

P/N: OMF383045_SJ
Language: English
Division: Forestry
Product Lines: Skidders
Publication Type: Operator’s Manuals
Associated Models: 848G
Series: G SERIES
Serial: 001021–

IMAGES PREVIEW OF THE MANUAL:

TABLE OF CONTENTS:

John Deere 848G SKIDDER Operator’s Manual OMF383045 – PDF DOWNLOAD

Contents 5
Safety — Safety Features 9
John Deere 848G Skidder Safety Features 9
Safety—General Precautions 10
Recognize Safety Information 10
Follow Safety Instructions 10
Operate Only If Qualified 10
Wear Protective Equipment 11
Avoid Unauthorized Machine Modifications 11
Inspect Machine 11
Stay Clear Of Moving Parts 12
Avoid High-Pressure Fluids 12
Handle Starting Fluid Safely 13
Beware Of Exhaust Fumes 13
Prevent Fires 14
Prevent Battery Explosions 14
Handle Chemical Products Safely 15
Dispose of Waste Properly 15
Prepare for Emergencies 15
Safety—Operating Precautions 16
Use Steps And Handholds Correctly 16
Start Only From Operator’s Seat 16
Use And Maintain Seat Belt 16
Prevent Unintended Machine Movement 17
Avoid Work Site Hazards 17
Operate Machine Safely 18
Keep Riders Off Machine 18
Avoid Backover Accidents 19
Avoid Machine Tip Over 19
Operating on Slopes 20
Operating Or Traveling On Public Roads 20
Inspect and Maintain ROPS 20
Keep the Operator Protective Structure (OPS) in Place 21
Add And Operate Attachments Safely 21
Safety—Maintenance Precautions 22
Park And Prepare For Service Safely 22
Service Cooling System Safely 22
Remove Paint Before Welding or Heating 23
Make Welding Repairs Safely 23
Drive Metal Pins Safely 23
Safety — Safety Signs 24
848G Skidder Safety Signs 24
Operator’s Station 27
Instrument Panel 27
Instrument Panel Functions 28
Instrument Bulb Test Button 29
Cab Temperature Control 29
Road and Work Lights 31
Windshield Washer and Wiper 32
Ignition Switch 33
Battery Disconnect Switch 33
Horn Button 34
Cold Start Pump Unloading Button 34
Cold Weather Starting Aid (Option) 35
Electronic Gear Selector (EGS) 35
EGS Override Switch 35
Winch Control Lever 36
Parking Brake Switch 36
Pedals 36
Transmission Declutch Switch 37
Rear Axle Differential Lock Switch 37
First Aid Kit Location 37
Alternate Exit 38
Fire Extinguisher 38
Air Circulating Fan 38
Air Vents 39
Fuse Panel — Lower 39
Fuse Panel — Upper 40
Two-Way Radio Location 40
Pressurized Water Tank (Option) 41
Seat Controls 41
Seat Belt 43
Door Stop 43
Operating the Machine 44
Pre-Start Checks 44
Before Starting the Engine 45
Starting the Engine — Above 4°C (40° F) 46
Starting the Engine — Below 4°C (40° F) 47
Engine Warm Up 48
Idling the Engine 48
Cold Weather Warm-Up 49
Stopping the Engine 50
Reducing Engine Load 51
Engine Break-In Procedure 51
Operating the Transmission 52
Steering the Skidder 58
Using the Decking Blade 58
Using the Winch 59
Using the Grapple 60
Roading the Skidder 63
Transporting the Skidder 64
Towing the Skidder 65
Tilting the Cab 69
Maintenance — Machine 73
Maintenance Preparation 73
Fluids and Lubricants Specifications Table 74
Break-in Oil 76
Diesel Engine Oil 77
Transmission/Winch Oil 78
Axle Oil 79
Hydraulic System Oil 80
Diesel Fuel 81
Low Sulfur Diesel Fuel Conditioner 82
Diesel Fuel Storage 82
Grease 83
Diesel Engine Coolant 84
Sampling Programs 85
Supplemental Coolant Additives 86
Replenishing Supplemental Coolant Additives (SCA’s) Between Coolant Changes 87
Fire Suppression Water Tank Fill 88
Lubricant Storage 88
Alternative and Synthetic Lubricants 89
Mixing of Lubricants 89
Maintenance — Periodic Maintenance 90
Service Your Machine at Specified Intervals 90
Check the Hourmeter Regularly 90
Use Correct Fuels and Lubricants 90
Using the Frame Lock 90
Engine Break in Period 91
Maintenance and Repair Record Keeping System 92
OILSCAN PLUS®, COOLSCAN PLUS®, and 3-Way Coolant Test Kit 93
Periodic Maintenance Table 94
Maintenance — As Required 99
Coolant System Cleaning 99
Bleed Fuel System 99
Clear Cab Drain Holes 101
Maintenance — Every 10 Hours or Daily 102
Check Engine Oil Level 102
Check Engine Air Intake Pre-Cleaner 102
Check and Clean Engine Air Filter 103
Check Fuel/Water Separator 103
Check Engine Coolant Level 104
Lubricate Rear Frame Grease Block 104
Check Fuel Level 105
Check Hydraulic Fluid Level 105
Check Transmission Oil Level 106
Lubricate Front Frame Grease Blocks 107
Lubricate Rear Steering Cylinder Pins 107
Lubricate Frame Hinge Pins 108
Lubricate Decking Blade Pins 108
Lubricate Arch, Boom and Grapple Pins 109
Check Snubber Adjustment 111
Clean External Surfaces & Engine Compartment 112
Fill Windshield Washer Reservoir 112
Clean Air Conditioner Primary Filter 113
Check Water Tank Pressure 113
Check Cab Tilt Locking Pin Bolts 115
Maintenance — Every 50 Hours or Weekly 116
Clean Oil Cooler and Radiator Fins 116
Check Axle Planetary Hub Oil Level 116
Check Axle Differential Oil Level 117
Check and Clean Axle Breathers 117
Check Fire Extinguisher Pressure 118
Lubricate Drive Shafts 118
Inspect For Loose Bolts, Oil Leaks, Wear or Damage 118
Check Tire Condition and Pressure 119
Check Wheel Nut Torque 119
Check Air Conditioner Secondary Filter 119
Check Heater Air Filter 120
Check Air Conditioner Condenser Fins 120
Check Hand Pump Oil Level 120
Maintenance — Every 250 Hours 121
Drain Water From Fuel Tank 121
Clean Transmission Breather 121
Change Engine Oil and Filter 122
Change Hydraulic Oil Filter 123
Check Step Condition 124
Maintenance — Every 500 Hours 125
Change Hydraulic Oil 125
Change Engine Air Filter Elements 126
Check Radiator Hoses 126
Replace Primary Fuel Filter (Water Separator) 126
Replace Final Fuel Filter 128
Change Transmission Oil Filter 130
Inspect Serpentine Belt 131
Check Engine Valve Lash Clearance 131
Maintenance — Every 1000 Hours 132
Change Transmission Oil 132
Change Winch Oil 134
Change Axle Planetary Oil 135
Change Axle Differential Oil 136
Test Engine Coolant 137
Maintenance — Every 2000 Hours 138
Adjust Engine Valve Lash Clearance 138
Maintenance — Every 3000 Hours 139
Change Engine Coolant 139
Miscellaneous — Machine 140
Checking the Engine Torsional Damper 140
Cleaning the Crankcase Vent Tube 140
Service Batteries Carefully 141
Using Booster Batteries 142
Precautions for Alternator and Regulator 144
Welding on Machine 144
Replacing Fuses 145
Replacing Fuses 146
Inspecting the Air Conditioning System 147
Accelerator Pedal Adjustment 151
Service Brake Pedal Adjustment 152
Inspecting and Cleaning Windows 153
Check Oil Lines and Fittings 154
Miscellaneous — Operational Checkout 155
Operational Checkout 155
Gauge Instrument Panel Checks 155
Ignition System Checks 157
Gauge Instrument Panel Checks 158
Driving Checks 161
Hydraulic Functions Checks 164
Winch 167
Accessories 174
Heater/Pressurizer and Air Conditioner Checks 176
Operator’s Compartment Checks 178
Miscellaneous Checks 180
Miscellaneous — Troubleshooting 182
General Troubleshooting 182
Diagnose Engine 183
Diagnose Electrical System 186
Diagnose Transmission 187
Diagnose Transmission Controller 188
Diagnose Service Brake 188
Diagnose Parking Brake 189
Diagnose Drivetrain 190
Diagnose Hydraulic Pump 191
Diagnose Hydraulic Cylinders 191
Diagnose Steering System 192
Dianose Implements (Decking Blade, Arch, Grapple) 192
Diagnose Winch 193
Diagnose Cab Heater 194
Diagnose Air Conditioning 195
Miscellaneous — Storage 196
Storage 196
Miscellaneous — Serial Numbers 198
Model and Serial Number Record 198
Miscellaneous — Specifications 199
848G Skidder Machine Dimensions 199
130 in Grapple Head Dimensions 201
Power Unit Specifications 202
Power Train Specifications 203Brake Specifications 204
Electrical System Specifications 204
Hydraulic Specifications 205
Winch Specifications 208
Miscellaneous Specifications 209
Miscellaneous — Crime Prevention Tips 211
Help Prevent Crime 211
Record Identification Numbers 211
Keep Proof of Ownership 211
Park Indoors Out of Sight 211
When Parking Outdoors 212
Reduce Vandalism 212
Report Thefts Immediately 213

S.V 03/24