John Deere 848G Skidder Operation Manual PDF Download

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John Deere 848G Skidder Operator’s Manual – PDF DOWNLOAD

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John Deere 848G Skidder Operator’s Manual – PDF DOWNLOAD

P/N: OMT186595_SJ
Language: English
Division: Forestry
Product Lines: Skidders
Publication Type: Operator’s Manuals
Associated Models: 848G
Series: G SERIES
Serial: 001001–001010

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TABLE OF CONTENTS:

John Deere 848G Skidder Operator’s Manual – PDF DOWNLOAD

Table of Contents 1
1 Introduction 9
1 1 Foreword 10
1 2 Customer Feedback 11
1 3 Emissions Control Warranty Statement 12
1 4 Model and Serial Number Record 14
1 5 Modifications or Repairs to Roll-over Protective Structures (ROPS) 15
1 6 Non-approved Field Product Changes 16
2 Warranty 17
2 1 Warranty 18
3 Safety Rules 19
3 1 Skidder Safety Features 20
3 2 General 21
3 3 Safety Symbol 21
3 4 Understanding Signal Words 21
3 5 General Safety Precautions 22
3 6 Operating Safety Precautions 26
3 7 Servicing Safety Precautions 34
3 8 Transporting on Public Roads 45
3 9 Fire Prevention 47
3 10 What to Do if the Machine Catches Fire 48
4 Safety Signs 49
4 1 Safety Signs 50
4 1 1 848G Skidder Safety Decals 50
5 Description 61
5 1 Introduction 62
5 2 Equipment Nomenclature 62
5 2 1 Dual Arch Grapple Skidder Major Components 62
5 2 2 Dual Arch Grapple Skidder Major Components 63
5 3 Controls and Instrumentation 64
5 3 1 Operator Controls and Instruments 64
5 3 2 Monitor Instrument Panel 66
5 3 3 Switches and Indicators 78
5 3 4 Driving/Operating Controls 84
5 3 5 Safety Items 90
5 3 6 Miscellaneous Items 91
6 Operation 97
6 1 Driving the Skidder 98
6 1 1 Pre-start checks 98
6 1 2 Before Starting The Engine 99
6 1 3 Starting the Engine 100
6 1 4 Stopping the Engine 103
6 1 5 Reducing Engine Load 104
6 1 6 Engine Break-in Procedure 104
6 1 7 Operating the Transmission 105
6 1 8 Operating the Driving Controls 111
6 2 Using the Implements 114
6 2 1 Operating the Decking Blade 114
6 2 2 Operating the Winch 114
6 2 3 Fairlead Position 116
6 2 4 Operating the Dual Arch Grapple 117
6 3 Skidding Technique 119
6 3 1 Cable Skidding 119
6 3 2 Grapple Skidding 121
6 4 Roading the Skidder 125
6 5 Transporting the Skidder 126
6 6 Towing the Skidder 127
6 6 1 Towing Very Short Distances 127
6 6 2 Manual Parking Brake Release 128
6 6 3 Towing Procedure – General 129
6 7 Tilting the Cab 130
6 7 1 Raising the Cab 130
6 7 2 Lowering the Cab 132
6 8 Using Booster Batteries 134
6 9 Storage 136
7 Fluids and Lubricants 139
7 1 Fluids and Lubricants Specifications 140
7 2 Recommended Fluids and Lubricants 141
7 2 1 Break-in Oil 141
7 2 2 Diesel Engine Oil 142
7 2 3 Transmission/Winch Oil 143
7 2 4 Axle Oil 144
7 2 5 Hydraulic System Oil 145
7 2 6 Diesel Fuel 146
7 2 7 Grease 148
7 2 8 Engine Coolant 149
7 2 9 Sampling Programs 150
7 2 10 Supllemental Coolant Additives 151
7 2 11 Testing Engine Coolant 152
7 2 12 Replenishing Supplemental Coolant Additives (SCA’s) Between Coolant Changes 153
7 2 13 Disposing of Coolant 154
7 2 14 Water Tank 155
7 2 15 Lubricants – General 156
8 Periodic Maintenance 157
8 1 Maintenance Preparation 158
8 2 Engine Break in Period 160
8 3 Periodic Maintenance Schedule 161
8 4 Periodic Maintenance Procedures 165
8 4 1 Maintenance 8 Hours 165
8 4 2 Maintenance 50 Hours 177
8 4 3 Maintenance 250 Hours 184
8 4 4 Maintenance 500 Hours 187
8 4 5 Maintenance 1000 Hours 194
8 4 6 Maintenance 2000 Hours 198
8 4 7 Maintenance 3000 Hours 200
8 4 8 Unscheduled Maintenance 201
8 5 Periodic Maintenance Checklist 205
9 General Maintenace 209
9 1 Maintenance Preparation 210
9 2 General Maintenance Procedures 212
9 2 1 Checking and replacing the Engine Torsional Damper 212
9 2 2 Cleaning the Crankcase Vent Tube 213
9 2 3 Bleed Fuel System 214
9 2 4 Servicing the Batteries 216
9 2 5 Welding on Machine 222
9 2 6 Replacing Fuses 223
9 2 7 Inspecting the Air Conditioning System 225
9 2 8 Winch BRAKE OFF Adjustment 229
9 2 9 Accelerator Pedal Adjustment 230
9 2 10 Service Brake Pedal Adjustment 231
9 2 11 Checking/Cleaning Windows 232
9 2 12 Fastener Torque Recommendations 233
9 2 13 Hydraulic Fittings Torque Recommendations 238
10 Operational Checkout 247
10 1 Operational Checkout 248
10 1 1 Controls and Instrumentation 249
10 1 2 Brakes 252
10 1 3 Driving 254
10 1 4 Hydraulic Functions 260
10 1 5 Winch 265
10 1 6 Accessories 272
10 1 7 ROPS and Compartment 276
10 1 8 Miscellaneous Checks 280
11 Troubleshooting 283
11 1 General Troubleshooting 284
11 2 Engine Troubleshooting 284
11 3 Electrical System Troubleshooting 288
11 4 Transmission Troubleshooting 289
11 4 1 Transmission 289
11 4 2 Transmission Controller 290
11 5 Brake System Troubleshooting 291
11 5 1 Service Brake 291
11 5 2 Parking Brake 291
11 6 Drivetrain Troubleshooting 292
11 7 Hydraulic System Troubleshooting 293
11 7 1 Hydraulic Pump 293
11 7 2 Hydraulic Cylinders 294
11 7 3 Steering 294
11 7 4 Implements (Decking Blade, Arch, Grapple) 295
11 8 Winch Troubleshooting 296
11 9 Miscellaneous Troubleshooting 297
11 9 1 Cab Heater 297
11 9 2 Air Conditioning System 298
12 Specifications 299
12 1 Dimensions – 848G Dual Arch Grapple Skidder 300
12 2 Grapple head Dimensions 301
12 3 Equipment Specifications 302
12 3 1 Power Train 302
12 3 2 Cooling System 303
12 3 3 Engine Air Intake and Exhaust 303
12 3 4 Fuel System 303
12 3 5 Electrical System 303
12 3 6 Brake System 303
12 3 7 Hydraulic System 304
12 3 8 Winch 306
12 3 9 Miscellaneous 307
13 Miscellaneous 309
13 1 Measurement Conversions 310
13 1 1 Miscellaneous Conversions 311
13 1 2 Metric and Imperial Unit Expressions 311
13 2 Wood Measurement Equivalents 312
13 3 Weights of Commercially Important Woods 313
13 4 General Bolt Torque Values 314
13 5 Crime Prevention Tips 315
13 6 Periodic Maintenance Checklist 317
13 7 John Deere Service Literature Available 321
13 8 John Deere Service Keeps You on the Job 323
Index 325

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