Complete repair service manual with electrical wiring diagrams for Bobcat Loaders 943, 953, 963, 970, M970, 974, 975, 980, with all the technical information to maintain, diagnose, repair, and rebuild like professional mechanics.

Bobcat Loaders 943, 953, 963, 970, M970, 974, 975, 980 official workshop service repair manual includes:
* Numbered table of contents easy to use so that you can find the information you need fast.
* Detailed sub-steps expand on repair procedure information
* Numbered instructions guide you through every repair procedure step by step.
* Troubleshooting and electrical service procedures are combined with detailed wiring diagrams for ease of use.
* Notes, cautions and warnings throughout each chapter pinpoint critical information.
* Bold figure number help you quickly match illustrations with instructions.
* Detailed illustrations, drawings and photos guide you through every procedure.
* Enlarged inset helps you identify and examine parts in detail.

MANUAL LIST:
6545555 (12-82) - Model 970 Loader Diesel Gasoline Owner's Manual.pdf
6545690 (5-85) - M970 (Gasoline & Diesel) Service Manual.pdf
6545690 (6-12) - M970 (Diesel & Gasline) Service Manual.pdf
6556214 (6-12) - 974, 975 Service Manual.pdf
6556214 (11-85) - 974, 975 Service Manual.pdf
6570001 (8-96) - 943 Operation & Maintenance Manual.pdf
6570008 (4-86) - 943 Service Manual.pdf
6570008 (6-12) - 943 Service Manual.pdf
6570157 (2-96) - 974, 975 Operation & Maintenance Manual.pdf
6570340 (2-96) - 980 Operation & Maintenance Manual.pdf
6570341 (2-87) - 980 Service Manual.pdf
6570341 (6-12) - 980 Service Manual.pdf
6570615 (4-96) - 943 Operation & Maintenance Manual.pdf
6724087 (9-98) - 953 Operation & Maintenance Manual.pdf
6724352 (6-12) - 953 Service Manual.pdf
6724352 (11-95) - 953 Service Manual.pdf
6724543 (7-98) - 963 Operation & Maintenance Manual.pdf
6724545 (6-12) - 963 Service Manual.pdf
6724545 (11-97) - 963 Service Manual.pdf
6900792 (9-00) - 963 Operation & Maintenance Manual.pdf
6900878 (2-01) - 963 Operation & Maintenance Manual.pdf
6900988 (3-06) - 963 Service Manual.pdf
6900988 (6-12) - 963 Service Manual.pdf

Total Pages: 6,211 pages
File Format: PDF (bookmarked, Searchable, Printable, high quality)
Language: English

CONTENTS
FOREWORD . . ii
SAFETY INSTRUCTIONS . . v
SERIAL NUMBER LOCATIONS . . vii
DELIVERY REPORT . . vii
BOBCAT LOADER IDENTIFICATION . . viii
PREVENTIVE MAINTENANCE . . 1–1
HYDRAULIC SYSTEM . . 2–1
HYDROSTATIC SYSTEM . . 3–1
DRIVE SYSTEM . . 4–1
MAIN FRAME . . 5–1
ELECTRICAL SYSTEM . . 6–1
ENGINE SERVICE . . 7–1
SYSTEM ANALYSIS . . 8–1
SPECIFICATIONS . . 9–1
ADVANCED HAND CONTROL SYSTEM . . 10–1
...
CONTENTS
FOREWORD . . ii
SAFETY INSTRUCTIONS . . v
SERIAL NUMBER LOCATIONS . . vii
DELIVERY REPORT . . vii
BOBCAT LOADER IDENTIFICATION . . viii
PREVENTIVE MAINTENANCE . . 1–1
HYDRAULIC SYSTEM . . 2–1
HYDROSTATIC SYSTEM . . 3–1
DRIVE SYSTEM . . 4–1
MAIN FRAME . . 5–1
ELECTRICAL SYSTEM . . 6–1
ENGINE SERVICE . . 7–1
BICS™ SYSTEM . . 8–1
SPECIFICATIONS . . 9–1
...
CONTENTS
SERIAL NUMBER LOCATIONS . . i
DELIVERY REPORT . . i
BOBCAT LOADER IDENTIFICATION . . ii
PREVENTIVE MAINTENANCE . . 1–1
HYDRAULIC SYSTEM . . 2–1
HYDROSTATIC SYSTEM . . 3–1
DRIVE SYSTEM . . 4–1
MAIN FRAME . . 5–1
ELECTRICAL SYSTEM . . 6–1
ENGINE SERVICE . . 7–1
TECHNICAL DATA . . 8–1
…

MAINTENANCE SAFETY...3
ALPHABETICAL INDEX...5
CONTENTS...7
  FOREWORD...8
  SAFETY INSTRUCTIONS...11
  FIRE PREVENTION...12
  SERIAL NUMBER LOCATIONS...13
  LOADER SERIAL NUMBER...13
  ENGINE SERIAL NUMBER...13
  DELIVERY REPORT...13
  963 BOBCAT LOADER IDENTIFICATION...14
PREVENTIVE MAINTENANCE...15
  SERVICE SCHEDULE...17
  LIFTING AND BLOCKING THE LOADER...18
    Procedure...18
  TRANSPORTING THE LOADER...19
    Procedure...19
  TOWING THE LOADER...20
    Procedure...20
  LIFT ARM SUPPORT DEVICE...21
    Engaging The Lift Arm Support Device...21
    Disengaging The Lift Arm Support Device...22
  OPERATOR CAB...23
    Description...23
    Raising The Operator Cab...23
    Lowering The Operator Cab...24
    Emergency Exit...25
  SEAT BAR RESTRAINT SYSTEM...26
    Description...26
    Inspecting The Seat Bar...26
    Maintaining The Seat Bar...26
  AIR CLEANER SERVICE...27
    Replacing Filter Elements...27
  FUEL SYSTEM...29
    Fuel Specifications...29
    Filling The Fuel Tank...29
    Fuel Filters...30
    Removing Air From The Fuel System...30
  ENGINE LUBRICATION SYSTEM...31
    Checking Engine Oil...31
    Replacing The Oil And Filter...31
  ENGINE COOLING SYSTEM...32
    Checking The Coolant Level...32
    Cleaning The Cooling System...32
    Replacing The Coolant...33
  ALTERNATOR BELT...34
    Adjusting The Alternator Belt...34
  HYDRAULIC/HYDROSTATIC SYSTEM...35
    Checking And Adding Fluid...35
    Hydraulic/Hydrostatic Filter Replacement...35
    Replacing The Hydraulic Fluid...36
  SPARK ARRESTOR MUFFLER...37
    Cleaning Procedure...37
  TIRE MAINTENANCE...38
    Wheel Nuts...38
    Tire Rotation...38
    Tire Mounting...38
  FINAL DRIVE TRANSMISSION (CHAINCASE)...39
    Checking And Adding Oil...39
  FAN GEARBOX...39
    Checking And Maintaining...39
  LUBRICATING THE LOADER...40
    Procedure...40
  BOB?TACH...42
    Inspection And Maintenance...42
  REMOTE START SWITCH...43
    Procedure...43
HYDRAULIC SYSTEM...45
  HYDRAULIC / HYDROSTATIC SCHEMATICS...48
  TROUBLESHOOTING...55
  HYDRAULIC SYSTEM INFORMATION...56
    Tighten Procedures...56
  LIFT CYLINDER...57
    Checking the Lift Cylinder(s)...57
    Removal and Installation...57
  TILT CYLINDER...60
    Checking The Tilt Cylinder(s)...60
    Removal And Installation...61
  HYDRAULIC CYLINDER...64
    Lift Cylinder Parts Identification...64
    Tilt Cylinder Parts Identification...65
    Disassembly...66
    Assembly...68
  TILT JUNCTION BLOCK...71
    Removal And Installation...71
  MAIN RELIEF VALVE...73
    Checking Main Relief Valve At Front Auxiliary Hydraulics...73
    Checking Main Relief Valve At Control Valve...75
    Removal And Installation...77
    Adjustment...77
  BICS? VALVE...79
    Lift Arm By?Pass Orifice...79
    Lock Valve...80
    Check Valve...81
    BICS? Valve Solenoid...82
    BICS Valve Removal And Installation...83
  HYDRAULIC CONTROL VALVE...84
    Removal And Installation...84
    Identification Chart...86
    Disassembly And Assembly...87
    Load Check Valve...87
    Main Relief Valve...88
    Port Relief Valve (Lift Section)...89
    Anti?Cavitation/Port Relief Valve...90
    Anti?Cavitation Valve...91
    Port Relief Valve (Tilt Section)...92
    Rubber Boot...93
    Lift Spool And Detent...94
    Tilt Spool And Centering Spring...98
    Auxiliary Spool...99
    Auxiliary Electric Solenoid...100
    H?Port ? Auxiliary Section...101
    Inspection...101
    Spool Seal Installation...102
  LIFT ARM BY?PASS CONTROL VALVE...103
    Removal And Installation...103
    Disassembly And Assembly...103
  BUCKET POSITION VALVE...104
    Removal And Installation...104
    Disassembly And Assembly...105
  HYDRAULIC PUMP...107
    Checking the Output of the Pump...107
    Removal And Installation...108
    Disassembly And Assembly...110
    Inspection...113
  HYDRAULIC/HYDROSTATIC FILTER...114
    Removal And Installation...114
  HYDRAULIC FLUID RESERVOIR...115
    Draining The Hydraulic Fluid Reservoir...115
    Removal And Installation...115
  CONTROL PEDALS...117
    Removal And Installation...117
    Pedal Adjustment...117
  PEDAL INTERLOCK LINKAGE...118
    Removal And Installation...118
    Adjustment...119
  FRONT SIDE PANEL...119
    Removal and Installation...119
  CONTROL PEDALS MOUNTING PANEL...120
    Removal and Installation...120
HYDROSTATIC SYSTEM...123
  TROUBLESHOOTING...125
  HYDROSTATIC SYSTEM INFORMATION...126
    Replenishing Valve Function...126
    Checking The Charge Pressure...126
  CONTROL PANEL...127
    Removal And Installation...127
  STEERING LEVERS...130
    Disassembly And Assembly...130
  STEERING LINKAGE...134
    Neutral Adjustment...134
  HYDROSTATIC CONTROLLER...136
    Removal and Installation...136
    Disassembly and Assembly...138
    Adjustment...141
  HYDROSTATIC MOTOR...142
    Removal and Installation...142
    Throttle Control...144
    Shuttle Check Valve...144
    Flushing Valve...145
    Disassembly...146
    Inspection...149
    Assembly...151
  HYDROSTATIC PUMP...156
    Removal And Installation...156
    Hydraulic Pump Removal And Installation...157
    Replenishing/High Pressure Relief Valve...158
    Charge Relief Valve...159
    DA Controller...159
    Disassembly...160
    Inspection...168
    Assembly...171
    Hydrostatic Pump Start?Up...181
    Timing Procedure...182
  DRIVE BELT BELT SHIELD...184
    Removal And Installation...184
  DRIVE BELT...185
    Replacing The Drive Belt...185
    Adjusting The Drive Belt...185
  DRIVE BELT TENSIONER PULLEY...186
    Removal And Installation...186
    Tension Spring...187
    Disassembly And Assembly...188
    Pivot Shaft...189
  DRIVE BELT IDLER PULLEY...190
    Removal And Installation...190
  HYDROSTATIC MOTOR COVER...191
    Removal And Installation...191
  OIL COOLER...192
    Removal And Installation...192
DRIVE SYSTEM...193
  PARKING BRAKE PEDAL...195
    Removal And Installation...195
    Disassembly And Assembly...196
  BRAKE/TWO SPEED BLOCK...197
    Removal And Installation...197
    Disassembly And Assembly...199
  PARKING BRAKE ...201
    Removal And Installation...201
    Disassembly And Assembly...202
  AXLE SEAL...205
    Removal And Installation...205
  AXLE, BEARINGS AND SPROCKET...208
    Removal And Installation...208
  DRIVE CHAINS...213
    Removal And Installation...213
  FRONT CHAINCASE COVER...214
    Removal And Installation...214
  REAR CHAINCASE COVER...214
    Removal and Installation...214
  REDUCTION GEARCASE...215
    Removal And Installation...215
    Disassembly And Assembly...218
  CHAINCASE FLUID...227
    Removing The Fluid From The Chaincase...227
MAIN FRAME...229
  SEAT BAR...231
    Removal And Installation...231
    Assembling Components...234
    Compression Spring Disassembly And Assembly...234
  OPERATOR CAB GAS CYLINDER...235
    Removal And Installation...235
    Gas Cylinder Mounting Bracket...236
  OPERATOR CAB...237
    Removal And Installation...237
  OPERATOR SEAT...239
    Removal And Installation...239
  BOB?TACH...240
    Removal And Installation...240
    Bob?Tach Lever And Wedge...242
    Bob?Tach Stops...243
  LIFT ARMS...244
    Removal And Installation...244
  REAR GRILL...248
    Gas Cylinder Removal And Installation...248
    Removal And Installation...248
  REAR DOOR...249
    Removal And Installation...249
    Adjusting The Rear Door Latch...250
  FRONT FUEL TANK...251
    Removal And Installation...251
    Fuel Level Sender...251
  REAR FUEL TANK...252
    Removal And Installation...252
    Pickup Tube Screen...253
ELECTRICAL SYSTEM...255
  ELECTRICAL SCHEMATICS...257
  TROUBLESHOOTING...277
  ELECTRICAL SYSTEM INFORMATION...278
    Description...278
    Fuse Location...278
  RELAY SWITCHES...278
    Location...278
  BATTERY...279
    Removal And Installation...279
    Servicing The Electrical System...281
    Using A Booster Battery (Jump Starting)...282
  ALTERNATOR...283
    Alternator Output Test...283
    Rectifier (Diode) Test...283
    Alternator Regulator Test...284
    Removal And Installation...285
    Adjusting the Alternator Belt...287
    Disassembly...288
    Stator Continuity Test...288
    Stator Ground Test...288
    Rotor Continuity Test...289
    Rotor Ground Test...289
    Rectifier Continuity (Diode) Test...289
    Assembly...290
  STARTER...291
    Removal And Installation...291
    Parts Identification...292
    Disassembly And Assembly...293
    External Pinion...296
    Inspection And Repair...297
    Magnetic Switch Test...300
    No Load Test...300
  STANDARD INSTRUMENT PANEL...301
    Removal And Installation...301
  FRONT LIGHTS...302
    Removal And Installation...302
ENGINE SERVICE...303
  TROUBLESHOOTING...307
  ENGINE SPEED CONTROL...308
    Removal And Installation...308
  ENGINE MUFFLER...309
    Removal And Installation...309
    Exhaust Extension Pipe...310
  AIR CLEANER HOUSING...311
    Removal And Installation...311
  COOLANT RECOVERY TANK...312
    Removal And Installation...312
  RADIATOR...313
    Removal And Installation...313
  FAN DRIVE TENSION PULLEY...316
    Removal And Installation...316
  FAN GEARBOX/BLOWER HOUSING...318
    Removal And Installation...318
  BLOWER FAN...320
    Removal And Installation...320
  FAN GEARBOX...321
    Disassembly...321
    Assembly...327
    Checking Backlash...332
  FLYWHEEL...334
    Removal And Installation...334
    Ring Gear Removal...335
    Ring Gear Installation...335
  ENGINE MOUNTING BRACKET...335
    Removal and Installation...335
  VALVE CLEARANCE...336
    Adjustment...336
  FUEL LIFT PUMP...337
    Checking...337
    Removal And Installation...337
  FUEL INJECTION PUMP...338
    Removal And Installation...338
  FUEL INJECTOR NOZZLES...341
    Removal and Installation...341
    Checking...343
  ENGINE...344
    Removal And Installation...344
  INTAKE MANIFOLD...349
    Removal and Installation...349
  EXHAUST MANIFOLD...350
    Removal and Installation...350
  CYLINDER HEAD...351
    Removal...351
    Inspection...353
    Installation...353
  ROCKER SHAFT...356
    Disassembly And Assembly...356
  VALVES, VALVE GUIDES AND SPRINGS...357
    Valve Removal...357
    Checking Valve Springs...357
    Checking Valve Depth...358
    Checking Valve Guides...358
    Valve Guide Removal...359
    Valve Guide Installation...359
    Checking Valves...360
    Cutting A Valve Seat...360
    Assembly...360
    Changing Valve Springs (With Cylinder Head Installed)...361
  TIMING CASE AND DRIVE ASSEMBLY...362
    Description...362
    Timing Cover Removal...362
    Timing Cover Installation...363
    Front Oil Seal Removal...364
    Front Oil Seal Installation...364
    Timing Case And Gear Removal...364
    Timing Case And Gear Installation...365
  CAMSHAFT AND TAPPETS...366
    Removal...366
    Installation...367
  PISTONS AND CONNECTING RODS...368
    Description...368
    Removal...368
    Disassembly...369

Bobcat Loaders 943, 953, 963, 970, M970, 974, 975, 980 Repair Service Manuals