Komatsu Backhoe Loaders WB140PSN, WB150PSN Repair Service Manual
Complete service repair manual with Electrical Wiring Diagrams for Komatsu Backhoe Loaders WB140PS-2N, WB150PS-2N, with all the technical information to maintain, diagnose, repair, and rebuild like professional mechanics.
Komatsu Backhoe Loaders WB140PS-2N, WB150PS-2N 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.
CEAM009402 - Backhoe Loader WB140PS-2N, WB150PS-2N Operation & Maintenance Manual.pdf
CEAM010800 - Backhoe Loader WB140PS-2N, WB150PS-2N Operation & Maintenance Manual.pdf
CEAM012502 - Backhoe Loader WB140PS-2N, WB150PS-2N Operation & Maintenance Manual.pdf
CEAM012602 - Backhoe Loader WB140PS-2N, WB150PS-2N Operation & Maintenance Manual.pdf
CEBM011100 - Backhoe Loader WB140PS-2N, WB150PS-2N Shop Manual.pdf
CEBM012801 - Backhoe Loader WB140PS-2N, WB150PS-2N Shop Manual
PRODUCT DETAILS:
Total Pages: 1,512 pages
File Format: PDF (Internal Links, Bookmarked, Table of Contents, Searchable, Printable, high quality)
Language: English
TABLE OF CONTENTS
CEAM009402 - Backhoe Loader WB140PS-2N, WB150PS-2N Operation & Maintenance Manual....1
COVER....1
INTRODUCTION....5
FOREWORD....6
SAFETY INFORMATION....7
APPROVED AND NON-APPROVED USES....8
APPROVED....8
NON-APPROVED....8
PRODUCT INFORMATION....9
MAIN FEATURES....9
BREAK-IN PERIOD....9
SYNTHETIC BIODEGRADABLE OIL TYPES....9
PRODUCT IDENTIFICATION....10
MACHINE SERIAL NUMBER....10
MACHINE IDENTIFICATION PLATE....10
ENGINE SERIAL NUMBER AND EMISSION LABEL....11
FRONT AXLE SERIAL NUMBER....11
REAR AXLE SERIAL NUMBER....11
TRANSMISSION SERIAL NUMBER....12
CAB SERIAL NUMBER....12
CANOPY SERIAL NUMBER....12
SERIAL NUMBERS AND DEALER INFORMATION....13
MODEL: WB140-2N / WB150-2N....13
CONTENTS....14
SAFETY....23
GENERAL SAFETY RULES AND PRECAUTIONS....24
GENERAL SAFETY RULES....24
SAFETY FEATURES....25
PERSONAL PROTECTIVE EQUIPMENT....25
UNAUTHORIZED MODIFICATIONS....25
LEAVING OPERATOR’S COMPARTMENT....26
MOUNTING AND DISMOUNTING....27
FIRE PREVENTION FOR FUEL AND OIL....27
DUST HAZARD PRECAUTIONS....28
CRUSH OR PINCH POINT DANGERS....28
FIRE EXTINGUISHER AND FIRST AID KIT....28
INSIDE OPERATOR’S COMPARTMENT....29
PRECAUTIONS WHEN USING ROPS....29
PRECAUTIONS FOR ATTACHMENTS....29
PRECAUTIONS BEFORE STARTING WORK OPERATIONS....30
PRE-OPERATIONAL CHECKS....30
PERFORM A WALK AROUND CHECK OF YOUR MACHINE....30
UNDER THE HOOD....30
IN THE OPERATOR’S CAB....31
START-UP CHECKS....31
STARTING YOUR WORK OPERATIONS....31
WORK SITE HAZARDS....32
WORKING CLEARANCES....32
RULES FOR ROAD TRAVEL....33
RULES FOR TRAVELING IN REVERSE....34
TRAVELING ON ICY OR SNOW-COVERED SURFACES....34
WORKING ON LOOSE OR UNSTABLE GROUND....34
PRECAUTIONS DURING MAINTENANCE OPERATIONS....35
WARNING TAGS....35
EQUIPMENT STORAGE....35
WORKING UNDER THE MACHINE....36
USING DROP LAMPS....36
KEEPING THE MACHINE CLEAN....36
RUNNING THE MACHINE DURING MAINTENANCE....37
RULES FOR REFUELING THE MACHINE....37
COOLING SYSTEM PRECAUTIONS....37
BATTERY PRECAUTIONS....38
STARTING THE MACHINE....38
HIGH PRESSURE HOSES....39
HIGH TEMPERATURES AREAS....39
ROTATING PARTS....39
DISPOSAL OF WASTE MATERIALS....40
INFLATING TIRES....40
CRITICAL PARTS....40
VIBRATIONS TO WHICH THE OPERATOR IS EXPOSED....40
SAFETY AND WARNING DECALS....41
LOCATION OF THE SAFETY DECALS....41
LOCATION OF THE PICTOGRAM DECALS....55
OPERATION....57
GENERAL VIEW OF MACHINE....58
FRONT VIEW OF MACHINE....58
REAR VIEW OF MACHINE....59
PICTOGRAMS....60
WORK AREA DANGERS....60
MOVING OR ROTATING ENGINE COMPONENTS....60
FILLING THE HYDRAULIC SYSTEM....60
ENGINE OIL FILTER....60
BRAKE FLUID....60
FUEL FILTER....61
ENGINE COOLANT....61
AIR FILTER....61
ENGINE COOLANT PRESSURE WARNING....61
HYDRAULIC OIL LEVEL....61
HYDRAULIC OIL FILTER....61
TRANSMISSION OIL LEVEL....62
TRANSMISSION FLUID FILTER....62
ANCHORAGE POINT....62
EMERGENCY EXIT....62
BOOM LOCK....62
SWING LOCK....62
DESCRIPTION OF MACHINE OPERATION CONTROLS....63
INSIDE THE CAB....63
FRONT INSTRUMENT BEZEL AND CONTROLS....64
TRANSMISSION OIL TEMPERATURE ALERT....64
ENGINE COOLANT TEMPERATURE ALERT....64
FOUR-WHEEL DRIVE (IN/OUT) INDICATOR....64
LOW FUEL ALERT....64
DIRECTIONAL SIGNAL INDICATOR....65
HIGH BEAM INDICATOR....65
PARKING BRAKE AND BRAKE FLUID ALERT....65
DIFFERENTIAL (LOCK/UNLOCK) INDICATOR....65
MULTIFUNCTIONAL DIRECTIONAL SWITCH....65
FOUR-WHEEL DRIVE SWITCH....66
WINDSHIELD WIPER/WASHER SWITCH....66
FRONT WORK LAMPS SWITCH....66
EMERGENCY (HAZARD) SWITCH....66
OPTIONAL EQUIPMENT SWITCH....66
SIDE INSTRUMENT BEZEL AND CONTROLS....67
FUEL LEVEL GAUGE....67
TACHOMETER AND HOUR METER....67
ENGINE COOLANT TEMPERATURE GAUGE....68
AIR CLEANER RESTRICTION ALERT....68
ENGINE OIL PRESSURE ALERT....68
GLOW PLUGS PREHEAT INDICATION....68
ALTERNATOR ALERT....68
ENGINE COOLANT TEMPERATURE ALERT....69
OPTIONAL EQUIPMENT ALERT....69
AUDIBLE WARNING SYSTEM....69
REAR WORK LAMPS....69
WINDSHIELD WIPER/WASHER SWITCH....69
EMERGENCY FLASHING LIGHT SWITCH....69
REAR HORN....70
LOAD STABILIZER SWITCH (OPTIONAL)....70
AIR CONDITIONING SWITCH (OPTIONAL)....70
IGNITION SWITCH....70
BLOWER SWITCH....70
BACKHOE POWER CONTROL SWITCH....71
BACKHOE BOOM LOCK SWITCH....71
OPTIONAL SWITCH LOCATIONS....71
FRONT END LOADER CONTROLS....72
LOADER DECLUTCH CONTROL BUTTON....72
DIFFERENTIAL LOCK BUTTON....72
BUCKET OPEN BUTTON....73
BUCKET CLOSE BUTTON....73
FRONT END LOADER SPEED CONTROL BUTTON....73
GEAR SHIFT LEVER CONTROLS....74
DECLUTCH BUTTON....74
CHANGING SPEED RANGES....74
DIRECTIONAL CONTROL LEVER....74
BRAKES, PARKING BRAKE, ACCELERATOR AND THROTTLE CONTROL....75
BRAKE PEDALS....75
PARKING BRAKE....75
ACCELERATOR PEDAL....76
HAND THROTTLE....76
CAB ENVIRONMENT AND SAFETY EQUIPMENT....77
HEATING AND VENTILATION SYSTEM....77
AIR CONDITIONING....77
HEATING SYSTEM....77
SEAT AND SEAT BELT....78
SEAT....78
SEAT BELT....78
SAFETY EQUIPMENT AND STORAGE AREAS....79
FIRE EXTINGUISHER....79
FIRST AID KIT....79
DOCUMENT STORAGE....79
TOOL CASE....79
CAB AND GUARDS....80
CAB....80
DOORS AND WINDOWS....80
ENGINE HOOD....81
ELECTRICAL....82
SWITCHES AND EXTRA ACCESSORIES....82
OVERHEAD LAMP....82
BATTERY DISCONNECT....82
OPTIONAL ELECTRICAL SWITCH LOCATION....82
FUSES AND RELAYS....83
FUSE AND RELAY PANEL LOCATION....83
DASHBOARD RELAY LOCATION....83
FUSE AND RELAY PANEL LAY OUT....84
ENGINE FUSE AND RELAY LOCATION....85
OPERATING THE MACHINE....87
CHECKING THE FUEL SUPPLY....87
STARTING THE ENGINE....87
STARTING THE ENGINE IN COLD WEATHER....88
WARMING THE MACHINE UP....89
SHUTTING THE ENGINE DOWN....89
OPERATING THE FRONT END LOADER AND BACKHOE....90
OPERATING THE FRONT END LOADER....90
CONTROL LEVER POSITIONS....90
PERFORMING LOADING OPERATIONS....91
BUCKET POSITION INDICATOR....91
ORGANIZING YOUR WORK AREA....91
LOADING HEAPED MATERIAL....92
LOADING A TRUCK BED OR TRAILER....92
WORKING ON SLOPES WITH A LOADED BUCKET....93
CHANGING THE FRONT BUCKET....93
OPERATING THE BACKHOE....94
POSITIONING THE MACHINE....94
ADJUSTING THE DIGGING BUCKET....95
DIGGING METHODS....96
CHANGING THE BACKHOE BUCKET....97
ISO BACKHOE CONTROLS....98
KOMATSU BACKHOE CONTROLS....99
SAFETY LOCK USAGE....100
BACKHOE LOCKS....102
MOVING OR TRAVELING WITH THE MACHINE....103
TRAVELING....103
TRAVELING ON SLOPES....104
TRAVELING OR WORKING IN SWAMPY OR WET AREAS....105
PARKING THE MACHINE....106
FOR SHORT OR LONG PERIODS OF TIME....106
PARKING ON AN INCLINE....107
TRANSPORTING THE MACHINE....108
LOADING AND SECURING THE MACHINE....108
EMERGENCY RECOVERY....109
HOW TO MOVE THE MACHINE....109
PRECAUTIONS DURING SEASONAL CHANGES....110
COLD SEASONS....110
FUEL AND LUBRICANTS....110
COOLANT....110
BATTERY....110
WARM SEASONS....111
BASIC TROUBLESHOOTING....112
THE BATTERY....112
SERVICING THE BATTERY....112
REMOVAL AND INSTALLATION....112
STARTING THE ENGINE WITH BOOSTER CABLE....113
ELECTRICAL CIRCUITS....115
HYDRAULIC SYSTEM....115
BRAKING SYSTEM....116
TORQUE CONVERTER SYSTEM....116
ENGINE....117
MAINTENANCE....119
GUIDE TO MAINTENANCE....120
MAINTENANCE NOTES....121
NOTES REGARDING THE ENGINE....121
ENGINE OIL....121
COOLANT....122
FUEL....122
NOTES REGARDING THE HYDRAULIC SYSTEM....122
NOTES REGARDING THE ELECTRICAL SYSTEM....123
NOTES REGARDING LUBRICATION....123
PARTS SUBJECT TO WEAR THAT PERIODICALLY NEED CHANGING....124
FUEL, COOLANT, AND LUBRICANTS....125
PROPER SELECTION ACCORDING TO THE AMBIENT TEMPERATURE....125
GREASE....126
HOMOLOGATED (HEES) SYNTHETIC BIODEGRADABLE LUBRICANTS....129
LUBRICATION DIAGRAMS....130
GENERAL....130
MULTIPURPOSE BUCKET AND PALLET FORKS....131
FRONT BUCKET QUICK COUPLINGS....132
TELESCOPIC ARM....133
PERIODIC REPLACEMENT OF COMPONENTS CONNECTED WITH SAFETY....134
CRITICAL PARTS FOR SAFETY....135
FUEL SUPPLY SYSTEM....135
DELIVERY / RETURN HYDRAULIC SYSTEM....136
LOADER AND BACKHOE HYDRAULIC SYSTEM....137
OPERATOR’S SAFETY....138
STANDARD TIGHTENING TORQUE....139
STANDARD TIGHTENING TORQUE FOR BOLTS AND NUTS....139
SPECIFIC TIGHTENING TORQUES....139
MAINTENANCE PLAN....140
CHECKS BEFORE STARTING....144
VARIOUS CHECKS....144
CHECKING FUEL LEVEL....144
CHECKING COOLANT LEVEL....145
CHECKING ENGINE OIL LEVEL....145
CHECKING HYDRAULIC SYSTEM OIL LEVEL....146
DRAINING WATER SEPARATOR....147
MAINTENANCE EVERY 10 HOURS OF OPERATION....147
LUBRICATING JOINTS (GREASE FITTINGS)....147
JOINT LUBRICATION POINTS....148
FRONT LOADER LUBRICATION LOCATIONS....148
BACKHOE LUBRICATION LOCATIONS....149
MAINTENANCE AFTER FIRST 50 HOURS OF OPERATION....150
CHANGE HYDRAULIC OIL DRAIN FILTER (ONLY FOR MACHINES WITH SYNTHETIC BIODEGRADABLE OIL)....150
MAINTENANCE EVERY 50 HOURS OF OPERATION....150
CHECKING RADIATOR FLUID LEVEL....150
CHECKING BRAKE SYSTEM OIL LEVEL....150
LUBRICATING PROPELLER SHAFTS....151
LUBRICATING FRONT AXLE JOINTS CENTRAL COUPLING....152
CHECKING TIRE PRESSURE....152
CHECKING ELECTRICAL SYSTEM....153
MAINTENANCE AFTER THE FIRST 250 HOURS OF OPERATION....153
CHANGE FRONT AXLE OIL....165
CHANGE REAR AXLE OIL....166
CHANGE HYDRAULIC TRANSMISSION OIL....167
CHANGE HYDRAULIC TRANSMISSION OIL FILTER....168
CHECK AND ADJUST ENGINE VALVE CLEARANCE....168
CHANGE HYDRAULIC OIL DRAIN FILTER....169
MAINTENANCE EVERY 250 HOURS OF OPERATION....154
ADJUSTING FAN BELT TENSION....154
CLEANING OUTSIDE OF RADIATOR....155
CHECKING BATTERY ELECTROLYTE LEVEL....155
CHECKING FRONT AXLE OIL LEVELS....156
CHECKING REAR AXLE OIL LEVELS....156
CHECKING HYDRAULIC TRANSMISSION OIL LEVEL....157
CHECKING WHEEL LUG NUT TORQUE....157
MAINTENANCE AFTER FIRST 500 HOURS OF OPERATION....158
MAINTENANCE EVERY 500 HOURS OF OPERATION....159
CHANGING ENGINE OIL....159
CHANGING ENGINE OIL FILTER....160
CHANGING HYDRAULIC SYSTEM OIL FILTER....161
CHANGING FUEL FILTER....162
FUEL FILTER....162
BLEEDING THE CIRCUIT....162
DRAINING FUEL TANK....163
DRAINING HYDRAULIC OIL TANK....164
MAINTENANCE EVERY 1000 HOURS....165
CHANGING FRONT AXLE OIL....165
DIFFERENTIAL....165
PLANETARY....165
CHANGING THE REAR AXLE OIL....166
DIFFERENTIAL....166
PLANETARY....166
CHANGING HYDRAULIC TRANSMISSION OIL....167
CHANGING HYDRAULIC TRANSMISSION FILTER....168
CHECKING AND ADJUSTING ENGINE VALVE CLEARANCE....168
MAINTENANCE EVERY 2000 HOURS OF OPERATION....169
CHANGING HYDRAULIC SYSTEM OIL AND CLEANING SUCTION FILTER....169
CHANGING COOLANT....171
CHANGING THE BRAKING SYSTEM OIL....173
CHECKING ALTERNATOR AND STARTER....173
WHEN REQUIRED....174
CHECKING, CLEANING, OR CHANGING AIR CLEANER CARTRIDGE....174
CHECKING AND CLEANING CAB AIR FILTERS....175
BLEEDING BRAKE SYSTEM....176
FLUSHING COOLING SYSTEM....177
CLEANING THE WATER SEPARATOR....179
CHECKING AND ADJUSTING FRONT WHEEL TOE-IN....179
CHECKING AND ADJUSTING PARKING BRAKE....180
CHECK....180
ADJUSTMENT....180
CHECKING THE BRAKING EFFICIENCY....181
CHECKING AND ADJUSTING BRAKE PEDAL STROKE....182
ADJUSTING AUTOMATIC RETURN OF FRONT BUCKET TO THE DIGGING POSITION....182
MAINTENANCE INTERVALS IN CASE OF DEMOLITION HAMMER USE....183
CHANGING HYDRAULIC OIL FILTER....183
CHANGING HYDRAULIC OIL....183
LONG TERM STORAGE....184
BEFORE STORAGE....184
DURING STORAGE....185
AFTER STORAGE....185
SPECIFICATIONS....187
TECHNICAL DATA....188
STANDARD OVERALL DIMENSIONS....188
TECHNICAL CHARACTERISTICS WB140-2N (ASPIRATED ENGINE)....189
TOTAL MASS....189
STANDARD BUCKET CAPACITY....189
ASPIRATED ENGINE....189
ELECTRICAL SYSTEM....189
TRAVEL SPEEDS....189
TIRES....189
TECHNICAL CHARACTERISTICS WB140-2N (TURBOCHARGED ENGINE)....190
TOTAL MASS....190
STANDARD BUCKET CAPACITY....190
ASPIRATED ENGINE....190
ELECTRICAL SYSTEM....190
TRAVEL SPEEDS....190
TIRES....190
TECHNICAL CHARACTERISTICS WB150-2N....191
TOTAL MASS....191
STANDARD BUCKET CAPACITY....191
ASPIRATED ENGINE....191
ELECTRICAL SYSTEM....191
TRAVEL SPEEDS....191
TIRES....191
LIFTING CAPACITIES....192
SYMBOLS....192
LIFTING CAPACITY WB140-2N....193
LIFTING CAPACITY WB150-2N....195
OPTIONAL ATTACHMENTS....197
AUTHORIZED OPTIONAL EQUIPMENT....198
BASIC PRECAUTIONS....198
OPTIONAL EQUIPMENT MEASUREMENTS FOR (WB140-2N)....199
FRONT END LOADER....199
BACKHOE UNIT....199
OPTIONAL EQUIPMENT MEASUREMENTS FOR (WB150-2N)....200
FRONT END LOADER....200
BACKHOE UNIT....200
FRONT EQUIPMENT QUICK COUPLING DEVICES....201
MANUAL CONTROL QUICK COUPLING....201
MULTIPURPOSE BUCKET....202
BUCKET OPERATION....203
DESCRIPTION....203
BUCKET USES....203
PALLET FORKS KIT....204
REMOVING AND INSTALLING THE FORKS....204
BACKHOE TELESCOPIC ARM....206
DESCRIPTION AND CONTROL....206
SAFETY LOCKS....206
MAINTENANCE....207
DEMOLITION HAMMER....209
DESCRIPTION AND CONTROL....209
RULES FOR HAMMER USAGE....210
ALWAYS AVOID THE FOLLOWING USES:....211
INSTALLATION AND REMOVAL OF THE DEMOLITION HAMMER....213
CLAMSHELL BUCKET....214
DESCRIPTION AND CONTROL....214
INSTALLATION AND REMOVAL OF THE CLAMSHELL BUCKET....215
OPERATING THE CLAMSHELL BUCKET....215
HYDRAULIC JACK HAMMER....216
DESCRIPTION AND CONTROL....216
CONNECTING AND REMOVING THE JACK HAMMER....217
USING THE JACK HAMMER....217
CEAM010800 - Backhoe Loader WB140PS-2N, WB150PS-2N Operation & Maintenance Manual....221
COVER....221
INTRODUCTION....227
FOREWARD....228
SAFETY INFORMATION....229
APPROVED AND NON-APPROVED USES....230
NON-APPROVED....230
PRODUCT INFORMATION....231
MAIN FEATURES....231
BREAK IN PERIOD....231
SYNTHETIC, BIODEGRADABLE OIL....231
PRODUCT IDENTIFICATION....232
MACHINE SERIAL NUMBER....232
MACHINE IDENTIFICATION PLATE....232
ENGINE SERIAL NUMBER AND EMISSION LABEL....233
FRONT AXLE SERIAL NUMBER....233
REAR AXLE SERIAL NUMBER....233
TRANSMISSION SERIAL NUMBER....234
CAB SERIAL NUMBER....234
CANOPY SERIAL NUMBER....234
SERIAL NUMBERS AND DEALER INFORMATION....235
MODEL: WB140PS-2/WB150PS-2....235
CONTENTS....236
SAFETY....245
GENERAL SAFETY RULES AND PRECAUTIONS....246
GENERAL SAFETY RULES....246
SAFETY FEATURES....247
PERSONAL PROTECTIVE EQUIPMENT....247
UNAUTHORIZED MODIFICATIONS....247
LEAVING OPERATOR'S COMPARTMENT....248
ENTERING AND EXITING THE MACHINE....249
CHECKING THE REAR VIEW MIRROR....249
FIRE PREVENTION FOR FUEL AND OIL....250
PREVENTING BURNS....250
CAB STRUCTURE PRECAUTIONS....250
OPTIONAL EQUIPMENT PRECAUTIONS....250
DUST HAZARD PRECAUTIONS....251
CRUSH OR PINCH POINT DANGERS....251
FIRE EXTINGUISHER AND FIRST AID KIT....251
INSIDE THE OPERATOR'S COMPARTMENT....252
PRECAUTIONS BEFORE STARTING ENGINE....253
PREOPERATIONAL CHECKS....253
WALK AROUND CHECK OF MACHINE....253
UNDER THE HOOD....253
IN THE OPERATOR'S CAB....254
START UP CHECKS....254
ROOM VENTILATION....254
STARTING WORK OPERATIONS....255
WORK HAZARDS....255
WORKING CLEARANCES....256
ROAD TRAVEL....257
TRAVELING IN REVERSE....259
TRAVELING ON ICY OR SNOW COVERED SURFACES....259
WORKING ON LOOSE OR UNSTABLE GROUND....259
VISIBILITY....259
PREVENTING DAMAGE CAUSED BY THE WORK EQUIPMENT....259
TRAVEL POSITIONS....260
TRAVELING ON SLOPES....261
BUCKET PRECAUTIONS....263
PARKING THE MACHINE....264
PARKING ON LEVEL GROUND....264
PARKING FOR LONG PERIODS OF TIME....264
PARKING ON AN INCLINE....265
SAFETY LOCK USAGE....266
FRONT END LOADER CYLINDER LOCK....266
BACKHOE LOCKS....267
TRANSPORTING THE MACHINE....269
LOADING AND SECURING THE MACHINE....269
EMERGENCY RECOVERY....271
MOVING THE MACHINE....271
PRECAUTIONS DURING MAINTENANCE....272
WARNING TAGS....272
EQUIPMENT STORAGE....272
WORKING UNDER THE MACHINE....273
USING DROP LAMPS....273
KEEPING THE MACHINE CLEAN....273
ENGINE OPERATION DURING MAINTENANCE....274
REFUELING PRECAUTIONS....274
COOLING SYSTEM PRECAUTIONS....274
GEARSHIFT PRECAUTIONS....275
TOOLS....276
BATTERY PRECAUTIONS....277
STARTER PRECAUTIONS....278
HIGH PRESSURE HOSES....279
HIGH TEMPERATURES AREAS....279
ROTATING PARTS....280
DISPOSAL OF WASTE MATERIALS....280
INFLATING TIRES....280
EXHAUST SYSTEM PRECAUTION....281
HYDRAULIC OIL ENVIRONMENTAL ESTER SYNTHETIC (HEES)....281
CRITICAL PARTS....282
VIBRATIONS TO WHICH THE OPERATOR IS EXPOSED....282
SAFETY AND WARNING DECALS....283
SAFETY DECAL LOCATIONS....283
OTHER DECALS....299
LOCATION....299
DECALS DEFINED....301
OPERATION....305
GENERAL VIEW OF MACHINE....306
FRONT VIEW OF MACHINE....306
REAR VIEW OF MACHINE....307
MACHINE CONTROLS....308
FRONT INSTRUMENTS AND CONTROLS....309
TRANSMISSION OIL TEMPERATURE ALERT....309
ENGINE COOLANT TEMPERATURE ALERT....309
FOUR WHEEL DRIVE INDICATOR....309
LOW FUEL ALERT....310
DIRECTIONAL SIGNAL INDICATOR....310
HIGH BEAM INDICATOR....310
PARKING BRAKE/LOW BRAKE FLUID ALERT....310
DIFFERENTIAL LOCK/UNLOCK INDICATOR....310
MULTIFUNCTIONAL DIRECTIONAL SWITCH....310
FOUR WHEEL DRIVE SWITCH....311
WINDSHIELD WIPER/WASHER SWITCH....311
FRONT WORK LAMPS SWITCH....311
EMERGENCY/HAZARD SWITCH....311
OPTIONAL EQUIPMENT SWITCH....311
ELECTRIC SAFETY VALVE SWITCH....311
SIDE INSTRUMENTS AND CONTROLS....312
FUEL LEVEL GAUGE....312
TACHOMETER AND HOUR METER....313
ENGINE COOLANT TEMPERATURE GAUGE....313
AIR CLEANER RESTRICTION ALERT....313
ENGINE OIL PRESSURE ALERT....313
GLOW PLUG PREHEAT INDICATOR....314
ALTERNATOR ALERT....314
ENGINE COOLANT TEMPERATURE ALERT....314
OPTIONAL EQUIPMENT ALERT....314
AUDIBLE WARNING SYSTEM....314
REAR WORK LAMPS....315
REAR WINDSHIELD WIPER/WASHER SWITCH....315
EMERGENCY FLASHING LIGHT SWITCH....315
REAR HORN....315
LOAD STABILIZER SWITCH....315
AIR CONDITIONING SWITCH....315
IGNITION SWITCH....316
BLOWER SWITCH....316
BACKHOE POWER CONTROL SWTCH....316
BACKHOE BOOM LOCK SWITCH....316
OPTIONAL SWITCH LOCATIONS....316
LOADER CONTROLS....317
LOADER DECLUTCH CONTROL....317
DIFFERENTIAL LOCK....317
BUCKET OPEN....317
BUCKET CLOSE....317
LOADER SPEED CONTROL....318
KICKDOWN....318
GEARSHIFT....319
CONTROLS....320
STARTING THE ENGINE....321
ANTITHEFT....321
DIM BUTTON....322
FOUR WHEEL DRIVE BUTTON....322
SHIFTING GEARS WITH SEMIAUTOMATIC LOGIC (SA)....322
PREVENTING THE ACCIDENTAL SELECTION OF THE FWD/REV GEAR....323
AUTOMATIC LOGIC....323
SHIFTING GEARS WITH AUTOMATIC LOGIC....324
SWITCHING DIRECTION OF TRAVEL....324
KICKDOWN....325
DECLUTCH....325
DIAGNOSTIC FUNCTION - MACHINE INOPERATIVE....326
DIAGNOSTIC FUNCTION - MACHINE OPERABLE....326
BRAKES AND ACCELERATOR....327
BRAKE PEDALS....327
PARKING BRAKE....327
ACCELERATOR PEDAL....328
HAND THROTTLE....328
THROTTLE OPERATING TIPS....328
CAB ENVIRONMENT AND SAFETY EQUIPMENT....329
HEATING AND AIR CONDITIONING....329
AIR CONDITIONING....329
HEATING SYSTEM....329
SEAT AND SEAT BELT....330
SEAT....330
SEAT BELT....330
SAFETY EQUIPMENT AND STORAGE AREAS....331
FIRE EXTINGUISHER....331
FIRST AID KIT....331
DOCUMENT STORAGE....331
TOOL CASE....331
CAB AND GUARDS....332
CAB....332
DOORS AND WINDOWS....332
ENGINE HOOD....334
ELECTRICAL....335
SWITCHES AND EXTRA ACCESSORIES....335
OVERHEAD LAMP....335
BATTERY DISCONNECT....335
OPTIONAL ELECTRICAL SWITCH LOCATION....335
FUSES AND RELAYS - ACCESSORIES....336
FUSE AND RELAY GRID....336
FUSES IDENTIFIED....337
RELAYS IDENTIFIED....338
DASHBOARD RELAYS....338
FUSES AND RELAYS - ENGINE....339
FUSE GRID....340
FUSES IDENTIFIED....340
RELAYS IDENTIFIED....340
OPERATING THE MACHINE....341
DAILY CHECKS BEFORE STARTING....341
OPERATIONAL CHECKS....341
CHECKING THE FUEL SUPPLY....342
STARTING THE ENGINE....342
STARTING THE ENGINE IN COLD WEATHER....343
WARMING UP THE MACHINE....344
MOVING THE MACHINE....345
DIFFERENTIAL LOCK....346
FOUR WHEEL DRIVE....346
BEFORE TURNING THE ENGINE OFF....347
OPERATING THE LOADER....348
CONTROL LEVER POSITIONS....349
LOADER BUCKET/ARM POSITIONS....349
DUAL FUNCTIONAL BUCKET/ARM POSITIONS....349
PERFORMING LOADING OPERATIONS....350
BUCKET POSITION INDICATOR....350
ORGANIZING THE WORK AREA....351
LOADING HEAPED MATERIAL....351
LOADING A TRUCK BED OR TRAILER....352
WORKING ON SLOPES WITH A LOADED BUCKET....353
CHANGING THE FRONT BUCKET....353
OPERATING THE BACKHOE....354
POSITIONING THE MACHINE....354
ADJUSTING THE DIGGING BUCKET....355
DIGGING METHODS....356
CHANGING THE BACKHOE BUCKET....358
ISO BACKHOE CONTROLS....359
KOMATSU BACKHOE CONTROLS....360
TRAVELING....361
TRAVELING OR WORKING IN WATER....361
MAINTENANCE....363
MAINTENANCE GUIDE....364
PRECAUTIONS DURING SEASONAL CHANGES....365
COLD WEATHER....365
FUEL AND LUBRICANTS....365
COOLANT....365
BATTERY....365
WARM WEATHER....366
BASIC TROUBLESHOOTING....367
THE BATTERY....367
SERVICING THE BATTERY....367
REMOVAL AND INSTALLATION....367
ELECTRICAL CIRCUITS....368
HYDRAULIC SYSTEM....368
BRAKING SYSTEM....369
TORQUE CONVERTER SYSTEM....369
ENGINE....370
MAINTENANCE NOTES....371
NOTES REGARDING THE ENGINE....371
ENGINE OIL....371
COOLANT....372
FUEL....372
NOTES REGARDING THE HYDRAULIC SYSTEM....372
NOTES REGARDING THE ELECTRICAL SYSTEM....373
NOTES REGARDING LUBRICATION....373
NORMAL WEAR PARTS....374
FUEL, COOLANT, AND LUBRICANTS....375
SELECTION ACCORDING TO AMBIENT TEMPERATURE....375
GREASE....376
HEES - SYNTHETIC, BIODEGRADABLE HYDRAULIC OIL....379
LUBRICATION DIAGRAMS....380
GENERAL....380
MULTIPURPOSE BUCKET AND PALLET FORKS....381
FRONT BUCKET QUICK COUPLINGS....382
TELESCOPIC ARM....383
SAFETY RELATED PARTS MAINTENANCE....384
CRITICAL SAFETY PARTS....385
FUEL SUPPLY SYSTEM....385
DELIVERY/RETURN HYDRAULIC SYSTEM....386
LOADER AND BACKHOE HYDRAULIC SYSTEM....387
OPERATOR'S SAFETY....388
TORQUE VALUES....389
GENERAL TORQUE VALUES - BOLTS AND NUTS....389
SPECIFIC TORQUE VALUES....389
MAINTENANCE PLAN....390
CHECKS BEFORE STARTING....390
MAINTENANCE EVERY 10 HOURS OF OPERATION....390
MAINTENANCE AFTER THE FIRST 50 HOURS OPERATION....390
MAINTENANCE EVERY 50 HOURS OF OPERATION....391
MAINTENANCE AFTER FIRST 250 HOURS OF OPERATION....391
MAINTENANCE EVERY 250 HOURS OF OPERATION....391
MAINTENANCE AFTER THE FIRST 500 HOURS OF OPERATION....392
MAINTENANCE EVERY 500 HOURS OF OPERATION....392
MAINTENANCE EVERY 1000 HOURS OF OPERATION....392
MAINTENANCE EVERY 2000 HOURS OF OPERATION....392
WHEN REQUIRED....393
MAINTENANCE INTERVALS WHEN DEMOLITION HAMMER IS USED....393
CHECKS BEFORE STARTING....394
VARIOUS CHECKS....394
CHECK THE FUEL LEVEL....394
CHECK THE COOLANT LEVEL....395
CHECK THE ENGINE OIL LEVEL....395
CHECK THE HYDRAULIC OIL LEVEL....396
DRAIN THE WATER SEPARATOR....397
MAINTENANCE EVERY 10 HOURS OF OPERATION....397
LUBRICATING JOINTS (GREASE FITTINGS)....397
JOINT LUBRICATION POINTS....398
LUBRICATION LOCATIONS - LOADER....398
LUBRICATION LOCATIONS - BACKHOE....399
MAINTENANCE AFTER FIRST 50 HOURS OF OPERATION....400
MAINTENANCE EVERY 50 HOURS OF OPERATION....400
CHECK THE RADIATOR COOLANT LEVEL....400
CHECK THE BRAKE FLUID LEVEL....400
LUBRICATE THE PROPELLER SHAFTS....401
LUBRICATE THE KING PIN....402
CHECK TIRE PRESSURE....402
CHECK THE ELECTRICAL SYSTEM....403
MAINTENANCE AFTER THE FIRST 250 HOURS OF OPERATION....403
MAINTENANCE EVERY 250 HOURS OF OPERATION....404
ADJUST THE FAN BELT TENSION....404
CLEAN THE OUTSIDE OF RADIATOR....405
CHECK BATTERY ELECTROLYTE LEVEL....405
CHECK THE FRONT AXLE OIL LEVEL....406
CHECK THE REAR AXLE OIL LEVELS....406
CHECK THE TRANSMISSION OIL LEVEL....407
CHECK THE WHEEL LUG NUT TORQUE....407
MAINTENANCE AFTER FIRST 500 HOURS OF OPERATION....408
MAINTENANCE EVERY 500 HOURS OF OPERATION....408
CHANGE THE ENGINE OIL....408
CHANGE THE ENGINE OIL FILTER....409
CHANGE THE HYDRAULIC OIL FILTER....410
CHANGE THE FUEL FILTER....412
DRAIN THE FUEL TANK....413
DRAIN THE HYDRAULIC OIL TANK....414
MAINTENANCE EVERY 1000 HOURS....415
CHANGE THE FRONT AXLE OIL....415
DIFFERENTIAL....415
PLANETARY....415
CHANGE THE REAR AXLE OIL....416
DIFFERENTIAL....416
PLANETARY....416
CHANGE THE TRANSMISSION OIL....417
CHANGE THE TRANSMISSION FILTER....418
CHECKING AND ADJUSTING ENGINE VALVE CLEARANCE....419
MAINTENANCE EVERY 2000 HOURS ....419
CHANGE THE HYDRAULIC OIL AND CLEAN THE SUCTION FILTER....419
CHANGE THE COOLANT....421
CHANGE THE BRAKE FLUID....423
CHECK THE ALTERNATOR AND STARTER....423
WHEN REQUIRED....424
CHECK, CLEAN, OR CHANGE THE AIR CLEANER CARTRIDGE....424
CHECK AND CLEAN CAB AIR FILTERS....425
BLEED THE BRAKE SYSTEM....426
FLUSH THE COOLING SYSTEM....427
CLEAN THE WATER SEPARATOR....430
CHECK AND ADJUST THE FRONT WHEEL TOE-IN....430
CHECK AND ADJUST THE PARKING BRAKE....431
CHECK THE SERVICE BRAKE....432
CHECK AND ADJUST BRAKE PEDAL STROKE....432
ADJUST AUTOMATIC RETURN OF FRONT BUCKET TO DIG POSITION....433
MAINTENANCE INTERVALS WHEN DEMOLITION HAMMER USED....434
CHANGE THE HYDRAULIC OIL FILTER....434
CHANGE THE HYDRAULIC OIL....434
LONG TERM STORAGE....435
BEFORE STORAGE....435
DURING STORAGE....436
REMOVING FROM STORAGE....436
SPECIFICATIONS....437
TECHNICAL DATA....438
STANDARD OVERALL DIMENSIONS....438
TECHNICAL CHARACTERISTICS WB140PS-2N....439
TOTAL MASS....439
STANDARD BUCKET CAPACITY....439
TURBOCHARGED ENGINE....439
ELECTRICAL SYSTEM....439
TRAVEL SPEEDS....439
TIRES....439
TECHNICAL CHARACTERISTICS WB150PS-2N....440
TOTAL MASS....440
STANDARD BUCKET CAPACITY....440
TURBOCHARGED ENGINE....440
ELECTRICAL SYSTEM....440
TRAVEL SPEEDS....440
TIRES....440
LIFTING CAPACITIES....441
LIFTING CAPACITY - WB140PS-2N....442
LIFTING CAPACITY - WB150PS-2N....444
OPTIONAL ATTACHMENTS....447
AUTHORIZED OPTIONAL EQUIPMENT....448
BASIC PRECAUTIONS....448
OPTIONAL EQUIPMENT MEASUREMENTS - WB140PS-2N....449
FRONT END LOADER....449
BACKHOE UNIT....449
OPTIONAL EQUIPMENT MEASUREMENTS - WB150PS-2N....450
FRONT END LOADER....450
BACKHOE....450
MULTIPURPOSE BUCKET....451
MULTIPURPOSE BUCKET COUPLING....453
MANUAL COUPLING....453
HYDRAULIC COUPLING....454
MULTIPURPOSE BUCKET INSTALLATION....455
MULTIPURPOSE BUCKET USES....456
MULTIPURPOSE BUCKET WITH FORK LIFT....457
FORK ADJUSTMENT....457
BEFORE TRAVELING....458
REMOVING AND INSTALLING THE FORKS....458
BACKHOE TELESCOPIC ARM....459
DESCRIPTION AND CONTROL....459
SAFETY LOCKS....459
MAINTENANCE....460
DEMOLITION HAMMER....462
DESCRIPTION AND CONTROL....462
HAMMER USAGE RULES....463
ALWAYS AVOID THE FOLLOWING....465
DEMOLITION HAMMER INSTALLATION AND REMOVAL....467
INSTALLATION....467
REMOVAL....469
CLAMSHELL BUCKET....470
DESCRIPTION AND CONTROL....470
CLAMSHELL BUCKET INSTALLATION....471
STANDARD ARM....471
TELESCOPIC ARM....472
CLAMSHELL BUCKET REMOVAL....472
OPERATING THE CLAMSHELL BUCKET....472
HYDRAULIC JACK HAMMER....473
DESCRIPTION AND CONTROL....473
CONNECTING THE JACK HAMMER....474
DISCONNECTING THE JACK HAMMER....474
USING THE JACK HAMMER....474
OPTIONAL EQUIPMENT WITH UNIDIRECTIONAL OIL FLOW....475
INSTALLING AND CONNECTING THE EQUIPMENT....475
LOAD STABILIZER SYSTEM (LSS)....476
CEAM012502 - Backhoe Loader WB140PS-2N, WB150PS-2N Operation & Maintenance Manual....479
INTRODUCTION....485
FOREWORD....486
SAFETY INFORMATION....487
APPROVED AND NON APPROVED USES....488
APPROVED....488
NON APPROVED....488
PRODUCT INFORMATION....489
MAIN FEATURES....489
BREAK IN PERIOD....489
SYNTHETIC BIODEGRADABLE OIL TYPES....489
PRODUCT IDENTIFICATION....490
MACHINE SERIAL NUMBER....490
MACHINE IDENTIFICATION PLATE....490
ENGINE SERIAL NUMBER AND EMISSION LABEL....490
FRONT AXLE SERIAL NUMBER....491
REAR AXLE SERIAL NUMBER....491
TRANSMISSION SERIAL NUMBER....492
CAB SERIAL NUMBER....492
CANOPY SERIAL NUMBER....492
SERIAL NUMBERS AND DISTRIBUTOR INFORMATION....493
MODEL: WB140-2N / WB150-2N....493
CONTENTS....494
SAFETY....505
SAFETY AND WARNING DECALS....506
LOCATION OF THE SAFETY DECALS....506
LOCATION OF THE PICTOGRAM DECALS....520
DECALS DEFINED....522
SAFETY RULES AND PRECAUTIONS....524
GENERAL SAFETY RULES....524
SAFETY FEATURES....524
PERSONAL PROTECTIVE EQUIPMENT....525
UNAUTHORIZED MODIFICATIONS....525
LEAVING OPERATOR’S COMPARTMENT....526
MOUNTING AND DISMOUNTING....527
CHECKING THE REAR VIEW MIRROR....527
FIRE PREVENTION FOR FUEL AND OIL....528
PREVENTING BURNS....528
DUST HAZARD PRECAUTIONS....528
CRUSH OR PINCH POINT DANGERS....529
FIRE EXTINGUISHER AND FIRST AID KIT....529
INSIDE OPERATOR’S COMPARTMENT....529
PRECAUTIONS WHEN USING ROPS....530
PRECAUTIONS FOR ATTACHMENTS....530
PRECAUTIONS BEFORE STARTING WORK....530
PREOPERATIONAL CHECKS....530
PERFORM A WALK AROUND CHECK OF YOUR MACHINE....530
UNDER THE HOOD....530
IN THE OPERATOR’S CAB....531
START UP CHECKS....531
ROOM VENTILATION....531
STARTING YOUR WORK OPERATIONS....531
WORK SITE HAZARDS....532
FIRE PREVENTION....532
WORKING CLEARANCES....532
RULES FOR ROAD TRAVEL....533
RULES FOR TRAVELING IN REVERSE....534
TRAVELING ON ICY/SNOW COVERED SURFACES....535
WORKING ON LOOSE OR UNSTABLE GROUND....535
VISIBILITY....535
PREVENTING DAMAGE CAUSED BY THE WORK EQUIPMENT....535
TRAVEL POSITIONS....535
TRAVELING ON SLOPES....536
BUCKET PRECAUTIONS....537
PARKING THE MACHINE....538
PARKING ON LEVEL GROUND....538
PARKING FOR LONG PERIODS OF TIME....539
PARKING ON AN INCLINE....539
SAFETY LOCK USAGE....540
FRONT END LOADER CYLINDER LOCK....541
BACKHOE LOCKS....542
TRANSPORTING THE MACHINE....544
LOADING AND SECURING THE MACHINE....544
EMERGENCY RECOVERY....545
MOVING THE MACHINE....545
PRECAUTIONS DURING MAINTENANCE....546
WARNING TAGS....546
EQUIPMENT STORAGE....546
WORKING UNDER THE MACHINE....546
USING DROP LAMPS....547
KEEPING THE MACHINE CLEAN....547
ENGINE OPERATING DURING MAINTENANCE....547
RULES FOR REFUELING THE MACHINE....547
COOLING SYSTEM PRECAUTIONS....548
USING LAMPS....548
ELECTRICAL PRECAUTIONS....548
BATTERY....548
CONNECTING CABLES....549
DISCONNECTING CABLES....549
ALTERNATOR....549
STARTER....550
HIGH PRESSURE HOSES....550
HIGH TEMPERATURES AREAS....551
ROTATING PARTS....551
DISPOSAL OF WASTE MATERIALS....551
INFLATING TIRES....551
EXHAUST SYSTEM PRECAUTION....552
HYDRAULIC ENVIRONMENTAL ESTER SYNTHETIC (HEES) OIL....552
CRITICAL PARTS....552
VIBRATIONS TO WHICH OPERATOR IS EXPOSED....552
OPERATION....553
GENERAL VIEW OF MACHINE....554
FRONT VIEW OF MACHINE....554
REAR VIEW OF MACHINE....555
MACHINE CONTROLS....556
MACHINE CONTROLS - PPC SYSTEM....557
FRONT INSTRUMENTS AND CONTROLS....558
TRANSMISSION OIL TEMPERATURE ALERT....559
ENGINE COOLANT TEMPERATURE ALERT....559
FOUR WHEEL DRIVE INDICATOR....559
LOW FUEL ALERT....559
DIRECTIONAL SIGNAL INDICATOR....560
HIGH BEAM INDICATOR....560
PARKING BRAKE LOW BRAKE FLUID ALERT....560
DIFFERENTIAL LOCK/UNLOCK INDICATOR....560
MULTIFUNCTIONAL DIRECTIONAL SWITCH....560
FOUR WHEEL DRIVE SWITCH....560
WINDSHIELD WIPER/WASHER SWITCH....561
FRONT WORK LAMPS SWITCH....561
EMERGENCY HAZARD SWITCH....561
ELECTRIC SAFETY VALVE SWITCH....561
SIDE INSTRUMENTS AND CONTROLS....562
FUEL LEVEL GAUGE....562
TACHOMETER AND HOUR METER....562
ENGINE COOLANT TEMPERATURE GAUGE....563
AIR CLEANER RESTRICTION ALERT....563
ENGINE OIL PRESSURE ALERT....563
PREHEAT INDICATOR....563
ALTERNATOR ALERT....563
ENGINE COOLANT TEMPERATURE ALERT....564
OPTIONAL EQUIPMENT ALERT....564
AUDIBLE WARNING SYSTEM....564
REAR WORK LAMPS....564
REAR WINDSHIELD WIPER/WASHER SWITCH....564
EMERGENCY FLASHING LIGHT SWITCH....565
REAR HORN....565
LOAD STABILIZER SWITCH....565
AIR CONDITIONING SWITCH....565
IGNITION SWITCH....565
BLOWER SWITCH....566
BACKHOE POWER CONTROL SWITCH....566
BACKHOE BOOM LOCK SWITCH....566
OPTIONAL SWITCH LOCATIONS....566
SIDE INSTRUMENTS AND CONTROLS - PPC SYSTEM....567
FUEL LEVEL GAUGE....567
TACHOMETER AND HOUR METER....568
ENGINE COOLANT TEMPERATURE GAUGE....568
AIR CLEANER RESTRICTION ALERT....568
ENGINE OIL PRESSURE ALERT....568
PREHEAT INDICATOR....568
ALTERNATOR ALERT....568
ENGINE COOLANT TEMPERATURE ALERT....569
OPTIONAL EQUIPMENT ALERT....569
AUDIBLE WARNING SYSTEM....569
REAR WORK LAMPS....569
REAR WINDSHIELD WIPER/WASHER SWITCH....569
EMERGENCY FLASHING LIGHT SWITCH....570
REAR HORN....570
LOAD STABILIZER SWITCH....570
AIR CONDITIONING SWITCH....570
IGNITION SWITCH....570
BLOWER SWITCH....571
BACKHOE CONTROL SWITCH....571
BACKHOE BOOM LOCK SWITCH....571
LOCK OUT SWITCH....571
LEFT OUTRIGGER CONTROL SWITCH....571
RIGHT OUTRIGGER CONTROL SWITCH....572
LOADER LEVER BUTTONS....572
DECLUTCH CONTROL....572
DIFFERENTIAL LOCK....572
BUCKET OPEN....572
BUCKET CLOSE....572
LOADER SPEED CONTROL....573
KICK DOWN....573
GEAR SHIFT LEVER BUTTON....573
ELECTRICAL ACCESSORIES....574
OVERHEAD LAMP....574
ELECTRIC OUTLET....574
POWER OUTLET....574
BATTERY DISCONNECTION SWITCH....574
MACHINE CONTROLS....575
DIRECTIONAL GEAR LEVER....576
BRAKE PEDALS....576
ACCELERATOR PEDAL....577
LOADER LEVER....577
GEAR SHIFT LEVER....578
PARKING BRAKE....579
HAND THROTTLE....579
BACKHOE BOOM LOCK CONTROL SWITCH....580
OPTIONAL SWITCH....581
DECLUTCH BUTTON....581
DIFFERENTIAL LOCK BUTTON....581
MP BUCKET OPEN BUTTON....582
MP BUCKET CLOSE BUTTON....582
FRONT LOADER SPEED BUTTON....582
DECLUTCH CONTROL BUTTON....582
BACKHOE CONTROL LEVERS....583
STABILIZER CONTROL LEVERS....583
ISO CONTROLS (EXCAVATOR sTYLE)....584
LEVER 16 BASIC MANEUVERS....584
LEVER 17 BASIC MANEUVERS....584
LEVER 16 COMBINED MANEUVERS....584
LEVER 17 COMBINED MANEUVERS....584
OPT CONTROLS (BACKHOE STYLE)....585
LEVER 16 BASIC MANEUVERS....585
LEVER 17 BASIC MANEUVERS....585
LEVER 16 COMBINED MANEUVERS....585
LEVER 17 COMBINED MANEUVERS....585
STEERING WHEEL LOCK LEVER....586
MACHINE CONTROLS - PPC SYSTEM....587
DIRECTIONAL GEAR LEVER....589
BRAKE PEDALS....589
ACCELERATOR PEDAL....590
LOADER LEVER....590
GEAR SHIFT LEVER....591
PARKING BRAKE....592
HAND THROTTLE....592
BACKHOE BOOM LOCK SWITCH....593
BACKHOE LOCKOUT SWITCH....594
BACKHOE POWER SWITCH....594
DECLUTCH BUTTON....594
DIFFERENTIAL LOCK BUTTON....594
MP BUCKET OPEN BUTTON....595
MP BUCKET CLOSE BUTTON....595
FRONT LOADER SPEED BUTTON....595
BACKHOE PPC LEVERS....596
OUTRIGGER SWITCHES....597
STEERING WHEEL LOCK LEVER....598
ISO CONTROLS (EXCAVATOR sTYLE)....599
LEVER 16 BASIC MANEUVERS....599
LEVER 17 BASIC MANEUVERS....599
LEVER 16 COMBINED MANEUVERS....599
LEVER 17 COMBINED MANEUVERS....599
OPT CONTROLS (BACKHOE STYLE)....600
LEVER 16 BASIC MANEUVERS....600
LEVER 17 BASIC MANEUVERS....600
LEVER 16 COMBINED MANEUVERS....600
LEVER 17 COMBINED MANEUVERS....600
JOYSTICK LOCK LEVERS....601
SUPPORT ADJUSTING KNOB....601
JOYSTICK STROKE ADJUSTING KNOB....602
HORN BUTTON....603
TELESCOPIC ARM BUTTONS....603
ARM RETRACTED....603
HAMMER BUTTON....604
PATTERN CHANGE LEVER....605
DECLUTCH CONTROL BUTTON....605
FUSES AND RELAYS - A20637 TO A20813/A60029 TO A60048....606
EQUIPMENT FUSES AND RELAYS....606
FUSES....606
RELAYS - A20637 TO A20813....607
ENGINE FUSES AND RELAYS....608
FUSES....609
RELAYS....609
SIDE INSTRUMENT PANEL RELAYS....609
FUSES AND RELAYS - A20814 AND UP/A60049 AND UP....610
EQUIPMENT FUSES AND RELAYS....610
FUSES....610
RELAYS....611
ENGINE FUSES AND RELAYS....612
FUSES....613
RELAYS....613
SIDE DASHBOARD....613
RELAYS....613
SIDE DASHBOARD - PPC SYSTEM....614
RELAYS....614
GUARDS, CAB AND DRIVER’S SEAT....615
ENGINE HOOD....615
CANOPY....615
CAB....615
GENERAL....615
REAR WINDOW....616
SIDE WINDOWS....616
ENTRY DOORS....618
OPERATOR ENVIRONMENT....619
AIR CONDITIONER....620
SAFETY SEAT BELT....621
DRIVER’S SEAT....622
SAFETY EQUIPMENT AND STORAGE AREAS....622
FIRE EXTINGUISHER....622
FIRST AID KIT....622
DOCUMENT STORAGE....623
TOOL CASE....623
OPERATING THE MACHINE....624
CHECKS BEFORE STARTING THE ENGINE....624
VISUAL CHECKS....624
DAILY CHECKS....624
OPERATIONAL CHECKS....625
CHECKING THE FUEL SUPPLY....625
STARTING THE ENGINE....626
TEMPERATE CLIMATES....626
COLD WEATHER....626
WARMING THE ENGINE....627
HEATING THE HYDRAULIC OIL....628
MOVING THE MACHINE....628
DIFFERENTIAL LOCK....629
FOUR WHEEL DRIVE....630
WORKING ON SLOPES....630
MAXIMUM IMMERSION DEPTH....631
PARKING THE MACHINE....632
PARKING ON LEVEL GROUND....632
PARKING ON SLOPES....633
STOPPING THE ENGINE....635
TRANSPORTING THE MACHINE....636
LOADING AND UNLOADING....636
TRANSPORT....637
COLD SEASON PRECAUTIONS....637
FUEL AND LUBRICANTS....637
COOLANT....637
BATTERY....638
OTHER PRECAUTIONS....638
END OF WORK PRECAUTIONS....638
WARM SEASON PRECAUTIONS....638
OPERATING THE LOADER....639
BUCKET POSITION INDICATOR....639
ORGANIZING THE WORK AREA....639
LOADING HEAPED AND LEVEL MATERIAL....640
LOADING OPERATIONS ON SLOPES....640
CHANGING THE FRONT BUCKET....641
USING THE BACKHOE....642
BUCKET POSITIONS....642
POSITION FOR DIGGING OPERATIONS....643
DIGGING METHOD....643
CHANGING THE BACKHOE BUCKET....645
LONG TERM STORAGE....645
BEFORE OFF SEASON....645
DURING OFF SEASON....646
AFTER THE PERIOD OF INACTIVITY....646
TROUBLESHOOTING....647
HOW TO REMOVE THE MACHINE....647
IF FUEL HAS BEEN COMPLETLY DEPLETED....647
BATTERY IS DISCHARGED....648
OTHER TROUBLES....650
ELECTRICAL CIRCUIT....650
HYDRAULIC SYSTEM....651
BRAKING SYSTEM....651
CONVERTER....651
ENGINE....652
MAINTENANCE....653
GUIDE TO MAINTENANCE....654
MAINTENANCE NOTES....655
NOTES REGARDING THE ENGINE....655
ENGINE OIL....655
COOLANT....656
FUEL....656
NOTES REGARDING THE HYDRAULIC SYSTEM....656
NOTES REGARDING THE ELECTRICAL SYSTEM....656
NOTES REGARDING LUBRICATION....657
PARTS SUBJECT TO WEAR THAT PERIODICALLY NEED CHANGING....657
FUEL COOLANT AND LUBRICANTS....658
SELECTION ACCORDING TO THE AMBIENT TEMPERATURE....658
GREASE....659
HEES SYNTHETIC BIODEGRADABLE LUBRICANTS....660
LUBRICATION DIAGRAMS....661
GENERAL....661
MULTIPURPOSE BUCKET AND PALLET FORKS....662
TELESCOPIC ARM....663
PERIODIC REPLACEMENT OF COMPONENTS FOR SAFETY....664
CRITICAL PARTS FOR SAFETY....665
FUEL SUPPLY SYSTEM....665
DELIVERY RETURN HYDRAULIC SYSTEM....666
LOADER AND BACKHOE HYDRAULIC SYSTEM....667
OPERATOR’S SAFETY....668
TIGHTENING TORQUE....669
STANDARD TORQUE FOR BOLTS AND NUTS....669
SPECIFIC TORQUES....669
MAINTENANCE SCHEDULE....670
WHEN REQUIRED....670
WHEN DEMOLITION HAMMER IS USED....670
CHECKS BEFORE STARTING....670
EVERY 10 HOURS OF OPERATION....670
INITIAL 50 HOURS OF OPERATION....671
EVERY 50 HOURS OF OPERATION....671
INITIAL 250 HOURS OF OPERATION....671
EVERY 250 HOURS OF OPERATION....671
INITIAL 500 HOURS OF OPERATION....672
EVERY 500 HOURS OF OPERATION....672
EVERY 1000 HOURS OF OPERATION....672
EVERY 2000 HOURS OF OPERATION....672
EVERY 4000 HOURS OF OPERATION....673
WHEN REQUIRED....674
AIR CLEANER CARTRIDGE....674
CAB AIR FILTERS....675
BRAKE SYSTEM....676
COOLING SYSTEM....677
FUEL WATER SEPARATOR....678
FRONT WHEEL TOE IN....678
PARKING BRAKE....679
BRAKING EFFICIENCY....680
BRAKE PEDAL STROKE....680
LOADER RETURN TO THE DIG....681
DEMOLITION HAMMER INTERVALS....682
CHANGING THE HYDRAULIC OIL FILTER....682
CHANGING THE HYDRAULIC OIL....682
CHECKS BEFORE STARTING....683
VARIOUS CHECKS....683
FUEL LEVEL....683
COOLANT LEVEL....684
ENGINE OIL LEVEL....684
HYDRAULIC SYSTEM OIL LEVEL....685
DRAINING WATER SEPARATOR....685
10 HOURS OF OPERATION....686
LUBRICATION POINTS....686
FIRST 50 HOURS OF OPERATION....688
HEES OIL TYPE....688
50 HOURS OF OPERATION....688
RADIATOR FLUID LEVEL....688
BRAKE SYSTEM OIL LEVEL....688
DRIVE SHAFTS....689
FRONT AXLE JOINTS AND COUPLING....690
TIRE PRESSURE....690
ELECTRICAL SYSTEM....690
FIRST 250 HOURS OF OPERATION....691
250 HOURS OF OPERATION....691
FAN BELT TENSION....691
AC COMPRESSOR BELT TENSION....692
RADIATOR OUTSIDE....693
A/C CONDENSER OUTSIDE....693
BATTERY ELECTROLYTE LEVEL....694
FRONT AXLE OIL LEVELS....694
REAR AXLE OIL LEVELS....695
TRANSMISSION OIL LEVEL....695
WHEEL LUG NUT TORQUE....695
FIRST 500 HOURS OF OPERATION....696
500 HOURS OF OPERATION....696
ENGINE OIL....696
ENGINE OIL FILTER....697
HYDRAULIC SYSTEM OIL FILTER....697
FUEL FILTER....698
FUEL TANK....700
HYDRAULIC OIL TANK....700
1000 HOURS OF OPERATION....701
FRONT AXLE OIL....701
REAR AXLE OIL....702
TRANSMISSION OIL....703
TRANSMISSION FILTER....704
ENGINE VALVE CLEARANCE....704
2000 HOURS OF OPERATION....705
HYDRAULIC SYSTEM OIL AND SUCTION FILTER....705
RADIATOR COOLANT....707
BRAKE SYSTEM OIL....709
ALTERNATOR AND STARTER....709
A/C SYSTEM COOLANT....710
4000 HOURS OF OPERATION....710
A/C DEHYDRATING FILTER....710
OPERATING CONDITIONS OF THE A/C COMPRESSOR....710
LONG TERM STORAGE....711
BEFORE STORAGE....711
DURING STORAGE....712
AFTER STORAGE....712
SPECIFICATIONS....713
SPECIFICATIONS....714
DIMENSIONS....714
LIFTING CAPACITIES....716
WB140-2N STANDARD ARM....716
WB140-2N TELESCOPIC ARM....717
WB150-2N STANDARD ARM....718
WB150-2N TELESCOPIC ARM....719
OPTIONAL ATTACHMENTS....721
AUTHORIZED OPTIONAL EQUIPMENT....722
BASIC PRECAUTIONS....722
OPTIONAL EQUIPMENT MEASUREMENTS FOR WB140-2N....723
FRONT END LOADER....723
BACKHOE UNIT....723
OPTIONAL EQUIPMENT MEASUREMENTS FOR WB150-2N....723
FRONT END LOADER....723
BACKHOE UNIT....723
MULTI PURPOSE BUCKET....724
BUCKET OPERATION....724
DESCRIPTION....724
BUCKET USES....724
INSTALLATION....725
MP BUCKET USE....726
MAINTENANCE....726
PALLET FORK KIT....727
DESCRIPTION....727
SAFETY DEVICES....727
PREPARING FORKS FOR USE....728
ROTATING FORKS FOR ROAD TRAVEL....728
FORK REMOVAL....729
FORK INSTALLATION....730
MAINTENANCE....730
BACKHOE TELESCOPIC ARM....731
DESCRIPTION AND CONTROL....731
SAFETY LOCKS....732
MAINTENANCE....732
DEMOLITION HAMMER....734
DESCRIPTION AND CONTROL....734
RULES FOR HAMMER USAGE....735
CORRECT USAGE....735
INCORRECT USES....736
INSTALLATION AND REMOVAL....738
INSTALLATION....738
REMOVAL....740
HAMMER USE....740
MAINTENANCE....740
UNIDIRECTIONAL OIL FLOW EQUIPMENT....741
STANDARD BACKHOE CONTROLS....741
DESCRIPTION AND CONTROL....741
INSTALLING AND CONNECTING THE EQUIPMENT....741
MAINTENANCE....742
PPC SYSTEM....742
DESCRIPTION AND CONTROL....742
INSTALLING AND CONNECTING THE EQUIPMENT....743
CLAMSHELL BUCKET....744
STANDARD BACKHOE CONTROLS....744
DESCRIPTION AND CONTROL....744
PPC SYSTEM....745
INSTALLATION....746
REMOVAL....747
OPERATING THE CLAMSHELL BUCKET....747
MAINTENANCE....747
HYDRAULIC JACK HAMMER....748
DESCRIPTION AND CONTROL....748
CONNECTING THE JACK HAMMER....749
DISCONNECTING THE JACK HAMMER....749
USING THE HAMMER....749
MAINTENANCE....749
LOAD STABILIZER SYSTEM (LSS)....750
ACCUMULATORS....750
CEAM012602 - Backhoe Loader WB140PS-2N, WB150PS-2N Operation & Maintenance Manual....753
COVER....753
INTRODUCTION....759
FOREWORD....760
SAFETY INFORMATION....761
APPROVED AND NON APPROVED USES....762
APPROVED....762
NON APPROVED....762
PRODUCT INFORMATION....763
MAIN FEATURES....763
BREAK IN PERIOD....763
SYNTHETIC BIODEGRADABLE OIL TYPES....763
PRODUCT IDENTIFICATION....764
MACHINE SERIAL NUMBER....764
MACHINE IDENTIFICATION PLATE....764
ENGINE SERIAL NUMBER AND EMISSION LABEL....764
FRONT AXLE SERIAL NUMBER....765
REAR AXLE SERIAL NUMBER....765
TRANSMISSION SERIAL NUMBER....766
CAB SERIAL NUMBER....766
CANOPY SERIAL NUMBER....766
SERIAL NUMBERS AND DISTRIBUTOR INFORMATION....767
MODEL: WB140PS-2N / WB150PS-2N....767
CONTENTS....768
SAFETY....781
SAFETY AND WARNING DECALS....782
LOCATION OF THE SAFETY DECALS....782
LOCATION OF THE PICTOGRAM DECALS....796
DECALS DEFINED....798
SAFETY RULES AND PRECAUTIONS....800
GENERAL SAFETY RULES....800
SAFETY FEATURES....801
PERSONAL PROTECTIVE EQUIPMENT....801
UNAUTHORIZED MODIFICATIONS....801
LEAVING OPERATOR’S COMPARTMENT....802
MOUNTING AND DISMOUNTING....803
CHECKING THE REAR VIEW MIRRORS....803
FIRE PREVENTION FOR FUEL AND OIL....804
PREVENTING BURNS....804
DUST HAZARD PRECAUTIONS....804
CRUSH OR PINCH POINT DANGERS....805
FIRE EXTINGUISHER AND FIRST AID KIT....805
INSIDE OPERATOR’S COMPARTMENT....805
PRECAUTIONS WHEN USING ROPS....806
PRECAUTIONS FOR ATTACHMENTS....806
PRECAUTIONS BEFORE STARTING WORK....806
PRE OPERATIONAL CHECKS....806
PERFORM A WALK AROUND CHECK OF YOUR MACHINE....806
UNDER THE HOOD....807
IN THE OPERATOR’S CAB....807
START UP CHECKS....808
ROOM VENTILATION....808
STARTING YOUR WORK OPERATIONS....808
WORK SITE HAZARDS....809
FIRE PREVENTION....809
WORKING CLEARANCES....809
RULES FOR ROAD TRAVEL....810
RULES FOR TRAVELING IN REVERSE....812
TRAVELING ON ICY/SNOW COVERED SURFACES....812
WORKING ON LOOSE OR UNSTABLE GROUND....812
VISIBILITY....813
PREVENTING DAMAGE CAUSED BY THE WORK EQUIPMENT....813
TRAVEL POSITIONS....813
TRAVELING ON SLOPES....813
BUCKET PRECAUTIONS....814
PARKING THE MACHINE....815
PARKING ON LEVEL GROUND....815
PARKING FOR LONG PERIODS OF TIME....816
PARKING ON AN INCLINE....816
SAFETY LOCK USAGE....817
LOADER CYLINDER LOCK....818
BACKHOE LOCKS....819
TRANSPORTING THE MACHINE....821
LOADING AND SECURING THE MACHINE....821
EMERGENCY RECOVERY....822
MOVING THE MACHINE....822
PRECAUTIONS DURING MAINTENANCE....823
WARNING TAGS....823
EQUIPMENT STORAGE....823
WORKING UNDER THE MACHINE....823
USING DROP LAMPS....824
KEEPING THE MACHINE CLEAN....824
ENGINE OPERATING DURING MAINTENANCE....824
RULES FOR REFUELING THE MACHINE....824
COOLING SYSTEM PRECAUTIONS....825
USING LAMPS....825
ELECTRICAL PRECAUTIONS....825
BATTERY....825
CONNECTING CABLES....826
DISCONNECTING CABLES....826
ALTERNATOR....826
STARTER....827
HIGH PRESSURE HOSES....827
HIGH TEMPERATURES AREAS....828
ROTATING PARTS....828
DISPOSAL OF WASTE MATERIALS....828
INFLATING TIRES....828
TOOLS....829
EXHAUST SYSTEM PRECAUTION....829
HEES OIL....830
CRITICAL PARTS....830
VIBRATIONS TO WHICH OPERATOR IS EXPOSED....830
OPERATION....831
GENERAL VIEW OF MACHINE....832
FRONT VIEW OF MACHINE....832
REAR VIEW OF MACHINE....833
VIEW OF MACHINE CONTROLS - STANDARD....834
VIEW OF MACHINE CONTROLS - PPC SYSTEM....835
MACHINE CONTROLS....836
FRONT INSTRUMENTS PANEL....836
TRANSMISSION OIL TEMPERATURE ALERT....836
ENGINE COOLANT TEMPERATURE ALERT....836
FOUR WHEEL DRIVE INDICATOR....836
LOW FUEL ALERT....836
DIRECTIONAL SIGNAL INDICATOR....837
HIGH BEAM INDICATOR....837
PARKING BRAKE LOW BRAKE FLUID ALERT....837
DIFFERENTIAL LOCK/UNLOCK INDICATOR....837
MULTIFUNCTIONAL SWITCH LEVER....837
FOUR WHEEL DRIVE SWITCH....837
WINDSHIELD WIPER/WASHER SWITCH....838
FRONT WORK LAMPS SWITCH....838
EMERGENCY HAZARD SWITCH....838
ELECTRIC SAFETY VALVE SWITCH....838
SIDE INSTRUMENTS PANEL - STANDARD CONTROLS....839
FUEL LEVEL GAUGE....839
TACHOMETER AND HOURMETER....839
ENGINE COOLANT TEMPERATURE GAUGE....840
AIR CLEANER RESTRICTION ALERT....840
ENGINE OIL PRESSURE ALERT....840
PREHEAT INDICATOR....840
ALTERNATOR ALERT....840
ENGINE COOLANT TEMPERATURE ALERT....841
OPTIONAL EQUIPMENT ALERT....841
AUDIBLE WARNING SYSTEM....841
REAR WORK LAMPS....841
REAR WINDSHIELD WIPER/WASHER SWITCH....841
EMERGENCY FLASHING LIGHT SWITCH....842
REAR HORN....842
AIR CONDITIONING SWITCH....842
LOAD STABILIZER SWITCH....842
IGNITION SWITCH....842
BLOWER SWITCH....843
BACKHOE POWER CONTROL SWITCH....843
BACKHOE BOOM LOCK SWITCH....843
OPTIONAL SWITCH LOCATIONS....843
SIDE INSTRUMENTS PANEL - PPC SYSTEM....844
FUEL LEVEL GAUGE....844
TACHOMETER AND HOUR METER....845
ENGINE COOLANT TEMPERATURE GAUGE....845
AIR CLEANER RESTRICTION ALERT....845
ENGINE OIL PRESSURE ALERT....845
PREHEAT INDICATOR....845
ALTERNATOR ALERT....845
ENGINE COOLANT TEMPERATURE ALERT....846
OPTIONAL EQUIPMENT ALERT....846
AUDIBLE WARNING SYSTEM....846
REAR WORK LAMPS....846
REAR WINDSHIELD WIPER/WASHER SWITCH....846
EMERGENCY FLASHING LIGHT SWITCH....847
REAR HORN....847
AIR CONDITIONING SWITCH....847
LOAD STABILIZER SWITCH....847
IGNITION SWITCH....847
BLOWER SWITCH....848
BACKHOE CONTROL SWITCH....848
BACKHOE BOOM LOCK SWITCH....848
LOCK OUT SWITCH....848
LEFT OUTRIGGER CONTROL SWITCH....848
RIGHT OUTRIGGER CONTROL SWITCH....849
LEVERS AND PEDALS....850
TRANSMISSION LEVER....851
DIRECTIONAL CONTROL....851
SPEED CONTROL....851
BRAKE PEDALS....852
ACCELERATOR PEDAL....852
LOADER CONTROL LEVER....853
LEVER FUNCTION....853
LEVER BUTTON FUNCTIONS....854
STEERING WHEEL LOCK LEVER....855
PARKING BRAKE....855
HAND THROTTLE....856
BACKHOE BOOM LOCK CONTROL....856
BACKHOE CONTROLS - STANDARD....857
ISO CONTROLS - EXCAVATOR STYLE....858
OPT CONTROLS - BACKHOE STYLE....859
STABILIZER CONTROL LEVERS....860
BACKHOE CONTROLS - PPC SYSTEM....860
PPC LEVERS....861
OUTRIGGER SWITCHES....862
ISO CONTROLS - EXCAVATOR sTYLE....863
OPT CONTROLS - BACKHOE STYLE....864
JOYSTICK LOCK LEVERS....865
SUPPORT ADJUSTING KNOB....865
JOYSTICK STROKE ADJUSTING KNOB....866
HORN BUTTON....867
TELESCOPIC ARM BUTTONS....867
PATTERN CHANGE LEVER....868
HAMMER BUTTON....869
CONTROL PATTERNS....869
OPTIONAL EQUIPMENT....870
ELECTRICAL ACCESSORIES....871
OVERHEAD LAMP....871
ELECTRIC OUTLET....871
12V SUPPLY OUTLET....871
BATTERY DISCONNECTION SWITCH....871
FUSES AND RELAYS....872
A40034 TO A400042 OR A70010 TO A70013....872
FUSES AND RELAYS....876
A40043 AND UP OR A70014 AND UP....876
ENGINE FUSES AND RELAYS....878
ENGINE HOOD....881
OPERATOR’S COMFORT....881
CANOPY....881
CAB....881
GENERAL....881
REAR WINDOW....882
SIDE WINDOWS....882
ENTRY DOORS....884
OPERATOR ENVIRONMENT....884
AIR CONDITIONER....885
SAFETY SEAT BELT....887
DRIVER’S SEAT....887
SAFETY EQUIPMENT AND STORAGE AREAS....888
FIRE EXTINGUISHER....888
FIRST AID KIT....888
DOCUMENT STORAGE....888
TOOL CASE....888
OPERATING THE MACHINE....889
CHECKS BEFORE STARTING THE ENGINE....889
VISUAL CHECKS....889
DAILY CHECKS....889
OPERATIONAL CHECKS....890
CHECKING THE FUEL SUPPLY....890
STARTING THE ENGINE....891
TEMPERATE CLIMATES....891
COLD WEATHER....891
WARMING THE ENGINE....892
HEATING THE HYDRAULIC OIL....893
MOVING THE MACHINE....893
DIFFERENTIAL LOCK....894
FOUR WHEEL DRIVE....895
WORKING ON SLOPES....895
MAXIMUM IMMERSION DEPTH....896
PARKING THE MACHINE....897
PARKING ON LEVEL GROUND....897
PARKING ON SLOPES....898
STOPPING THE ENGINE....900
TRANSPORTING THE MACHINE....901
LOADING AND UNLOADING....901
TRANSPORT....902
COLD SEASON PRECAUTIONS....902
FUEL AND LUBRICANTS....902
COOLANT....902
BATTERY....903
OTHER PRECAUTIONS....903
END OF WORK PRECAUTIONS....903
WARM SEASON PRECAUTIONS....904
OPERATING THE LOADER....905
BUCKET POSITION INDICATOR....905
ORGANIZING THE WORK AREA....905
LOADING HEAPED AND LEVEL MATERIAL....906
LOADING OPERATIONS ON SLOPES....906
CHANGING THE GP BUCKET....907
USING THE BACKHOE....907
BUCKET POSITIONS....908
POSITION FOR DIGGING OPERATIONS....908
DIGGING METHOD....909
CHANGING THE BACKHOE BUCKET....910
OFF SEASON....912
BEFORE OFF SEASON....912
DURING OFF SEASON....913
AFTER THE PERIOD OF INACTIVITY....913
TROUBLESHOOTING....914
HOW TO MOVE THE MACHINE....914
IF THE FUEL HAS BEEN COMPLETLY DEPLETED....914
BATTERY IS DISCHARGED....915
OTHER TROUBLES....917
ELECTRICAL CIRCUIT....917
HYDRAULIC SYSTEM....917
BRAKING SYSTEM....918
CONVERTER....918
ENGINE....919
MAINTENANCE....921
GUIDE TO MAINTENANCE....922
MAINTENANCE NOTES....923
NOTES REGARDING THE ENGINE....923
ENGINE OIL....923
COOLANT....923
FUEL....924
NOTES REGARDING THE HYDRAULIC SYSTEM....924
NOTES REGARDING THE ELECTRICAL SYSTEM....924
NOTES REGARDING LUBRICATION....924
PARTS SUBJECT TO WEAR THAT PERIODICALLY NEED CHANGING....925
FUEL COOLANT AND LUBRICANTS....926
SELECTION ACCORDING TO THE AMBIENT TEMPERATURE....926
GREASE....927
HEES SYNTHETIC BIODEGRADABLE LUBRICANTS....928
LUBRICATION DIAGRAMS....929
GENERAL....929
MULTIPURPOSE BUCKET AND PALLET FORKS....930
TELESCOPIC ARM....931
PERIODIC REPLACEMENT OF COMPONENTS FOR SAFETY....932
CRITICAL PARTS FOR SAFETY....933
FUEL SUPPLY SYSTEM....933
FUEL SUPPLY SYSTEM....934
A40043 and UP or A700014 and UP....934
DELIVERY RETURN HYDRAULIC SYSTEM....935
LOADER AND BACKHOE HYDRAULIC SYSTEM....936
OPERATOR’S SAFETY....937
TIGHTENING TORQUE....938
STANDARD TORQUE FOR BOLTS AND NUTS....938
SPECIFIC TORQUES....938
MAINTENANCE SCHEDULE....939
WHEN REQUIRED....939
WHEN DEMOLITION HAMMER IS USED....939
CHECKS BEFORE STARTING....939
EVERY 10 HOURS OF OPERATION....939
FIRST 50 HOURS OF OPERATION....940
EVERY 50 HOURS OF OPERATION....940
FIRST 250 HOURS OF OPERATION....940
EVERY 250 HOURS OF OPERATION....940
FIRST 500 HOURS OF OPERATION....941
EVERY 500 HOURS OF OPERATION....941
EVERY 1000 HOURS OF OPERATION....941
EVERY 2000 HOURS OF OPERATION....941
EVERY 4000 HOURS OF OPERATION....941
WHEN REQUIRED....942
AIR CLEANER ELEMENT....942
CAB AIR FILTERS....943
BRAKE SYSTEM....944
COOLING SYSTEM....945
FUEL WATER SEPARATOR....946
FRONT WHEEL TOE IN....947
PARKING BRAKE....947
BRAKING EFFICIENCY....948
BRAKE PEDAL STROKE....949
LOADER RETURN TO THE DIG....949
DEMOLITION HAMMER INTERVALS....950
CHANGING THE HYDRAULIC OIL FILTER....950
CHANGING THE HYDRAULIC OIL....950
CHECKS BEFORE STARTING....951
VARIOUS CHECKS....951
FUEL LEVEL....951
COOLANT LEVEL....952
ENGINE OIL LEVEL....952
HYDRAULIC SYSTEM OIL LEVEL....953
DRAINING WATER SEPARATOR....953
EVERY 10 HOURS OF OPERATION....954
LUBRICATION POINTS....954
FIRST 50 HOURS OF OPERATION....956
HEES OIL TYPE....956
EVERY 50 HOURS OF OPERATION....957
RADIATOR FLUID LEVEL....957
BRAKE SYSTEM OIL LEVEL....957
DRIVE SHAFTS....957
FRONT AND REAR AXLE JOINTS AND FRONT PIVOT....958
TIRE PRESSURE....959
ELECTRICAL SYSTEM....959
FIRST 250 HOURS OF OPERATION....960
EVERY 250 HOURS OF OPERATION....961
FAN BELT TENSION....961
A/C COMPRESSOR BELT TENSION....961
RADIATOR OUTSIDE....963
CONDENSER OUTSIDE....963
BATTERY ELECTROLYTE LEVEL....964
FRONT AXLE OIL LEVEL....964
REAR AXLE OIL LEVEL....965
TRANSMISSION OIL LEVEL....965
WHEEL LUG NUT TORQUE....965
FIRST 500 HOURS OF OPERATION....966
EVERY 500 HOURS OF OPERATION....967
ENGINE OIL....967
ENGINE OIL FILTER....968
HYDRAULIC SYSTEM OIL FILTER....968
FUEL FILTER....969
FUEL TANK....971
HYDRAULIC OIL TANK....971
EVERY 1000 HOURS OF OPERATION....972
FRONT AXLE OIL....972
REAR AXLE OIL....973
TRANSMISSION OIL....974
TRANSMISSION FILTER....974
ENGINE VALVE CLEARANCE....975
EVERY 2000 HOURS OF OPERATION....976
HYDRAULIC SYSTEM OIL AND SUCTION FILTER....976
RADIATOR COOLANT....978
BRAKE SYSTEM OIL....980
ALTERNATOR AND STARTER....980
A/C SYSTEM COOLANT....981
EVERY 4000 HOURS OF OPERATION....982
A/C DEHYDRATING FILTER....982
A/C COMPRESSOR....982
LONG TERM STORAGE....983
BEFORE STORAGE....983
DURING STORAGE....984
AFTER STORAGE....984
SPECIFICATIONS....987
DIMENSIONS....988
MACHINE....988
LOADER, BACKHOE - STANDARD ARM....989
WB140PS-2N....989
WB150PS-2N....990
LOADER, BACKHOE - TELESCOPIC ARM....991
WB140PS-2N....991
WB150PS-2N....992
MISCELLANEOUS....993
LIFTING CAPACITIES....994
WB140PS-2N STANDARD ARM....994
WB140PS-2N TELESCOPIC ARM....995
WB150PS-2N STANDARD ARM....996
WB150PS-2N TELESCOPIC ARM....997
OPTIONAL ATTACHMENTS....999
AUTHORIZED OPTIONAL EQUIPMENT....1000
BASIC PRECAUTIONS....1000
OPTIONAL EQUIPMENT MEASUREMENTS....1001
WB140PS-2N....1001
WB150PS-2N....1001
MULTI PURPOSE BUCKET....1002
BUCKET OPERATION....1002
DESCRIPTION....1002
BUCKET USES....1002
INSTALLATION....1003
MP BUCKET USE....1004
MAINTENANCE....1004
MP BUCKET FORKS....1005
DESCRIPTION....1005
SAFETY DEVICES....1005
PREPARING FORKS FOR USE....1006
ROTATING FORKS FOR ROAD TRAVEL....1006
FORK REMOVAL....1007
FORK INSTALLATION....1008
MAINTENANCE....1008
OPTIONAL FRONT EQUIPMENT....1009
BACKHOE TELESCOPIC ARM....1010
DESCRIPTION AND CONTROL....1010
SAFETY LOCKS....1011
MAINTENANCE....1011
GUIDE SLACK ADJuSTMENT....1011
DEMOLITION HAMMER....1013
DESCRIPTION AND CONTROL....1013
RULES FOR HAMMER USAGE....1014
CORRECT USAGE....1014
INCORRECT USAGE....1015
INSTALLATION AND REMOVAL....1017
INSTALLATION....1017
REMOVAL....1019
HAMMER USE....1019
MAINTENANCE....1019
UNIDIRECTIONAL OIL FLOW EQUIPMENT....1020
STANDARD BACKHOE CONTROLS....1020
DESCRIPTION AND CONTROL....1020
INSTALLING AND CONNECTING THE EQUIPMENT....1020
MAINTENANCE....1021
PPC SYSTEM....1021
DESCRIPTION AND CONTROL....1021
INSTALLING AND CONNECTING THE EQUIPMENT....1022
CLAMSHELL BUCKET....1023
DESCRIPTION AND CONTROL....1023
STANDARD CONTROLS....1023
PPC SYSTEM....1024
INSTALLATION....1025
REMOVAL....1026
OPERATING THE CLAMSHELL BUCKET....1026
MAINTENANCE....1026
HAND HELD JACK HAMMER....1027
DESCRIPTION AND CONTROL....1027
CONNECTING THE JACK HAMMER....1028
DISCONNECTING THE JACK HAMMER....1028
USING THE HAMMER....1028
MAINTENANCE....1028
LOAD STABILIZER SYSTEM (LSS)....1029
ACCUMULATORS....1029
CEBM011100 - Backhoe Loader WB140PS-2N, WB150PS-2N Shop Manual....1033
COVER....1033
CONTENTS....1034
FOREWORD....1036
SAFETY....1035
SAFETY NOTICE....1035
IMPORTANT SAFETY NOTICE....1035
GENERAL PRECAUTIONS....1035
PREPARATIONS FOR WORK....1035
PRECAUTIONS DURING WORK....1035
GENERAL....1037
HOW TO READ THE SHOP MANUAL....1038
VOLUMES....1038
DISTRIBUTION AND UPDATING....1038
FILING METHOD....1038
REVISED EDITION MARK....1038
REVISIONS....1038
SYMBOLS....1038
HOISTING INSTRUCTIONS....1039
HOISTING....1039
WIRE ROPES....1039
COATING MATERIALS....1040
STANDARD TIGHTENING TORQUE....1042
STANDARD TIGHTENING TORQUE OF BOLTS AND NUTS....1042
TIGHTENING TORQUE OF HOSE NUTS....1043
TIGHTENING TORQUE OF SPLIT FLANGE BOLTS....1043
TIGHTENING TORQUE FOR FLARED NUTS....1043
ELECTRIC WIRE CODE....1044
CLASSIFICATION BY THICKNESS....1044
CLASSIFICATION BY COLOR AND CODE....1044
CONVERSION TABLES....1045
METHOD OF USING THE CONVERSION TABLE....1045
10 STRUCTURE AND FUNCTION....1053
POWER TRAIN....1056
TRANSMISSION....1058
DIAGRAM OF THE POWER TRAIN....1058
HYDRAULIC CONVERTER-TRANSMISSION CIRCUIT DIAGRAM....1059
TRANSMISSION....1060
DRIVE SHAFTS....1065
DRIVE SHAFT FOR FORWARD AND REVERSE MOVEMENT....1065
DRIVE SHAFT....1065
DRIVEN GEAR SHAFT....1066
DRIVEN SHAFT 4WD....1066
CONTROL VALVE BLOCK....1067
FRONT AXLE....1069
DIFFERENTIAL....1069
FINAL-REDUCTION-JOINT....1071
STEERING CYLINDER....1073
REAR AXLE....1075
DIFFERENTIAL....1075
FINAL REDUCTION....1077
BRAKES....1079
DIFFERENTIAL LOCKING....1081
HYDRAULIC PUMP....1083
FUNCTION....1088
STRUCTURE....1088
OPERATION....1089
PUMP OPERATION....1089
CONTROL OF DELIVERY....1090
PC VALVE, LS VALVE, SERVO PISTON....1091
LS VALVE....1092
FUNCTION....1092
OPERATION....1093
PC VALVE....1098
FUNCTION....1098
OPERATION....1099
WORKING MODE SOLENOID VALVE....1103
FUNCTION....1103
OPERATION....1103
STEERING UNIT....1105
TECHNICAL DATA....1105
OPERATION....1105
HYDRAULIC CIRCUIT....1106
SHOVEL CONTROL VALVE....1108
2-SPOOL....1108
3-SPOOL....1112
BACKHOE CONTROL VALVE....1116
6-SPOOL....1116
7-SPOOL....1123
FOR TELESCOPIC ARM....1123
FOR HAMMER....1123
8-SPOOL....1127
FOR HAMMER AND TELESCOPIC ARM....1127
CLSS (CLOSED CENTER LOAD SENSING SYSTEM)....1130
DESCRIPTION....1130
CHARACTERISTICS....1130
STRUCTURE....1130
OPERATION....1131
UNLOADING VALVE....1133
FUNCTION....1133
OPERATION....1133
INTRODUCTION OF THE LS PRESSURE....1136
OPERATION....1136
DELIVERY COMPENSATION....1137
INTRODUCTION....1137
FUNCTION....1137
OPERATION....1137
LIFD CONTROL SYSTEM....1140
FUNCTION....1140
OPERATION....1140
LS DECOMPRESSION VALVE....1141
DESCRIPTION....1141
OPERATION....1141
PRESSURE CUT-OFF VALVE....1142
DESCRIPTION....1142
OPERATION....1142
PRIORITY VALVE (ONLY FOR THE 2-3-SPOOL CONTROL VALVE)....1143
FUNCTION....1143
SOLENOID VALVE....1144
SOLENOID VALVE BLOCK ST1 - DIFFERENTIAL LOCKING - BACKHOE BOOM LOCKING....1144
SAFETY VALVE....1145
BRAKE PUMP....1147
SHOVEL CYLINDERS....1149
RAISING CYLINDER....1149
DUMPING CYLINDER....1149
DUMP CYLINDER....1150
RAISE CYLINDER....1150
BACKHOE CYLINDERS....1151
BOOM....1151
ARM....1151
BUCKET....1152
OUTRIGGERS....1152
BOOM SWING....1152
TELESCOPIC ARM....1153
CHARACTERISTICS....1153
BACKHOE CYLINDER MAINTENANCE STANDARD....1154
BOOM....1154
ARM....1154
BUCKET....1154
BOOM SWING....1154
OUTRIGGER....1156
TELESCOPIC ARM....1156
FRONT WORKING EQUIPMENT....1158
SWING BRACKET....1160
BACKHOE WORK EQUIPMENT....1162
AIR-CONDITIONING UNIT....1164
AIR-CONDITIONING UNIT FUNCTION....1165
20 TESTING, ADJUSTING AND TROUBLESHOOTING....1167
NORMAL OR STANDARD TECHNICAL DATA....1170
FOR ENGINE....1170
FOR MACHINE....1171
SPECIAL TOOLS....1183
MEASURING ENGINE SPEED....1184
ADJUSTING VALVE CLEARANCE....1185
MEASURING COMPRESSION PRESSURE....1186
FUEL INJECTION TIMING....1187
FAN BELT....1189
TENSION CHECK....1189
FAN BELT TENSION....1189
COMPRESSOR BELT....1190
CHECKING TENSION....1190
FAN BELT TENSION....1190
ACCELERATOR PEDAL AND LEVER....1191
OPERATING TRAVEL....1191
ACCELERATOR PEDAL TRAVEL ADJUSTING....1191
ACCELERATOR LEVER TRAVEL ADJUSTING....1192
BRAKE PEDAL AND ALIGNMENT....1193
TRAVEL AND MICRO SWITCHES....1193
MASTER CYLINDER ROD ADJUSTMENT....1193
MICROSWITCHES ADJUSTMENT....1193
AIR BLEEDING....1194
RELEASING RESIDUAL PRESSURE....1194
AIR BLEEDING FROM PUMP....1194
AIR BLEEDING FROM CYLINDERS....1194
AIR BLEEDING FROM OIL TANK....1195
HYDRAULIC OIL TANK PRESSURIZATION....1195
RELEASING RESIDUAL PRESSURE FROM CIRCUITS....1195
AIR BLEEDING FROM BRAKING CIRCUIT....1195
CHECKING AIR BLEEDING FROM BRAKING CIRCUIT....1196
ATTACHMENTS HYDRAULIC CIRCUIT....1197
CHECKING AND SETTING PRESSURE....1197
INTRODUCTION....1197
TESTING AND SETTING GENERAL VALVES....1199
TESTING AND SETTING SECONDARY VALVES....1199
MAIN AND SECONDARY VALVES SETTING....1202
SENSING SIGNAL (LS VALVE)....1204
UNLOADING VALVE....1205
ADJUSTING THE UNLOADING VALVE....1205
UNLOADING VALVE FUNCTIONALITY....1206
PRIORITY VALVE....1207
TESTING PRIORITY VALVE OPERATION....1207
CLEANING PRIORITY VALVE....1207
STEERING CONTROL SYSTEM PRESSURE....1208
TESTING....1208
SETTING....1208
BRAKE SYSTEM....1209
TESTING CIRCUIT AND BRAKE TIGHTNESS....1209
TESTING BRAKING GROUP LEAK TIGHTNESS....1210
ENGINE SPEED CONTROL....1211
UNDER LOAD....1211
PREPARING THE MACHINE....1211
TESTING WITH THE TORQUE CONVERTER UNDER STRESS....1212
TESTING THE TORQUE CONVERTER AND HYDRAULIC SYSTEM UNDER STRESS....1212
POWER TRAIN PRESSURES....1213
PREPARING THE MACHINE....1213
CONVERTER OIL PRESSURE....1213
CLUTCH ENGAGEMENT PRESSURE....1214
POWER TRAIN CLUTCHES FUNCTION....1215
PREPARATION OF THE MACHINE....1215
TESTING....1215
RETURN TO DIG DEVICE SENSOR....1216
ANALYSIS OF HYDRAULIC DRIFT....1217
FRONT EQUIPMENT....1217
TESTING FRONT BUCKET LIFTING....1217
TESTING FRONT BUCKET DUMPING....1218
BACKHOE....1219
BOOM TESTING....1219
ARM TESTING....1219
BUCKET TESTING....1220
OUTRIGGERS TESTING....1221
AIR-CONDITIONING UNIT....1222
TESTING THE WORKING TEMPERATURE....1222
CHECKING THE UNIT....1223
EMPTYING THE AIR CONDITIONING UNIT....1224
FRONT AXLE TROUBLESHOOTING....1225
REAR AXLE TROUBLESHOOTING....1230
TRANSMISSION TROUBLESHOOTING....1237
ELECTRONIC CONTROL UNIT INSPECTION....1240
FAILURE....1240
NUMERICAL ERROR....1240
ANOMALY....1240
30 DISASSEMBLY AND ASSEMBLY....1243
METHOD OF USING MANUAL....1248
PRECAUTIONS DURING OPERATION....1249
SPECIAL TOOLS....1252
STARTING MOTOR....1255
REMOVAL....1255
INSTALLATION....1255
ALTERNATOR....1256
REMOVAL....1256
INSTALLATION....1256
AIR CONDITIONING COMPRESSOR....1257
REMOVAL....1257
INSTALLATION....1258
INJECTION PUMP....1259
REMOVAL....1259
INSTALLATION....1262
INJECTION NOZZLES....1263
REMOVAL....1263
INSTALLATION....1264
THERMOSTAT....1265
REMOVAL....1265
INSTALLATION....1266
COOLING LIQUID PUMP....1267
REMOVAL....1267
INSTALLATION....1269
TURBOCHARGER....1270
REMOVAL....1270
INSTALLATION....1271
CYLINDER HEAD....1272
REMOVAL....1272
INSTALLATION....1274
ACCUMULATOR DISCONNECT SWITCH....1277
REMOVAL....1277
INSTALLATION....1277
FRONT COUNTERWEIGHT....1278
REMOVAL....1278
INSTALLATION....1278
RADIATOR OIL COOLER UNIT....1279
REMOVAL....1279
INSTALLATION....1281
CONDENSER....1282
REMOVAL....1282
INSTALLATION....1282
MUFFLER....1283
REMOVAL....1283
INSTALLATION....1283
EXHAUST PIPE....1284
REMOVAL....1284
INSTALLATION....1284
ENGINE HOOD....1285
REMOVAL....1285
INSTALLATION....1286
CAB....1287
REMOVAL....1287
INSTALLATION....1290
HEAT AND AIR CONDITIONING GROUP....1291
REMOVAL....1291
INSTALLATION....1292
FUEL TANK....1293
REMOVAL....1293
INSTALLATION....1294
HYDRAULIC OIL TANK....1295
REMOVAL....1295
INSTALLATION....1296
ENGINE-GEARBOX-PUMP GROUP....1297
REMOVAL....1297
INSTALLATION....1301
PISTON PUMP....1304
REMOVAL....1304
INSTALLATION....1305
TRANSMISSION....1306
REMOVAL....1306
INSTALLATION....1309
TRANSMISSION....1311
DISASSEMBLY CONVERTER....1311
ASSEMBLY CONVERTER....1312
DISASSEMBLY PLUGS AND FILTERS....1314
ASSEMBLY PLUGS AND FILTERS....1315
DISASSEMBLY OIL PUMP....1317
ASSEMBLY OIL PUMP....1318
DISASSEMBLY PIPES AND SENSORS....1320
ASSEMBLY PIPES AND SENSORS....1326
DISASSEMBLY HYDRAULIC CONTROL VALVE....1331
ASSEMBLY HYDRAULIC CONTROL VALVE....1333
DISASSEMBLY TRANSMISSION HOUSING....1335
ASSEMBLY TRANSMISSION HOUSING....1342
DISASSEMBLY SHAFT A....1350
ASSEMBLY SHAFT A....1359
DISASSEMBLY SHAFT B....1367
ASSEMBLY SHAFT B....1373
DISASSEMBLY SHAFT C....1378
ASSEMBLY SHAFT C....1387
DISASSEMBLY SHAFT E....1398
ASSEMBLY SHAFT E....1403
CONVERTER....1408
REMOVAL....1408
INSTALLATION....1409
HEADLIGHT CONTROL GROUP....1410
REMOVAL OF THE TRANSMISSION INDICATOR AND HEADLIGHT DIMMER....1410
INSTALLATION OF THE TRANSMISSION- INDICATOR AND HEADLIGHT DIMMER....1410
STEERING UNIT....1411
REMOVAL....1411
INSTALLATION....1411
WORKING BRAKE PUMP GROUP....1412
REMOVAL....1412
INSTALLATION....1412
FRONT WORK EQUIPMENT CONTROL VALVE....1413
REMOVAL....1413
INSTALLATION....1413
FRONT AXLE....1414
REMOVAL....1414
INSTALLATION....1415
FRONT AXLE....1416
DISASSEMBLY....1416
ASSEMBLY....1425
PINION GROUP ASSEMBLY....1425
DIFFERENTIAL CARRIER GROUP ASSEMBLY....1428
AXLE BEAM GROUP ASSEMBLY....1432
WHEEL HUB GROUP ASSEMBLY....1433
EPICYCLIC REDUCTION GEAR ASSEMBLY....1436
STEERING CYLINDERS GROUP ASSEMBLY....1436
TOE-IN ADJUSTMENT....1438
STEERING ANGLE ADJUSTMENT....1439
REAR AXLE....1441
REMOVAL....1441
INSTALLATION....1442
DISASSEMBLY....1443
EPICYCLIC REDUCTION GEAR DISASSEMBLY....1443
WHEEL HUB GROUP DISASSEMBLY....1444
AXLE BEAM TRUMPETS AND BRAKE GROUPS DISASSEMBLY....1445
BRAKE CONTROL GROUP DISASSEMBLY....1448
DIFFERENTIAL GROUP DISASSEMBLY....1454
PINION GROUP DISASSEMBLY....1455
ASSEMBLY....1457
PINION GROUP ASSEMBLY....1457
DIFFERENTIAL GROUP ASSEMBLY....1460
BRAKE FLANGE AND DIFFERENTIAL HOUSING ASSEMBLY....1461
BRAKE CONTROL GROUP ASSEMBLY....1466
WORK EQUIPMENT....1476
FRONT BUCKET BOOM-RAISING CYLINDER....1476
REMOVAL....1476
INSTALLATION....1477
FRONT BUCKET TILT CYLINDERS....1478
REMOVAL....1478
INSTALLATION....1479
FRONT BUCKET....1480
REMOVAL....1480
INSTALLATION....1480
FRONT WORK EQUIPMENT....1481
REMOVAL....1481
INSTALLATION....1482
BACKHOE CONTROL VALVE....1483
REMOVAL....1483
INSTALLATION....1484
BACKHOE BOOM CYLINDER....1485
REMOVAL....1485
INSTALLATION....1486
BACKHOE ARM CYLINDER....1487
REMOVAL....1487
INSTALLATION....1487
TELESCOPIC ARM CYLINDER....1488
REMOVAL....1488
INSTALLATION....1488
BACKHOE BUCKET CYLINDER....1489
REMOVAL....1489
INSTALLATION....1490
OUTRIGGER CYLINDERS....1491
REMOVAL....1491
INSTALLATION....1491
BACKHOE SWING CYLINDERS....1492
REMOVAL....1492
INSTALLATION....1492
CYLINDERS....1494
DISASSEMBLY....1494
FRONT BUCKET RAISE AND TILT, BOOM, ARM, BUCKET, OUTRIGGERS....1494
ASSEMBLY....1496
FRONT BUCKET RAISE AND TILT, BOOM, ARM, BUCKET, OUTRIGGERS AND TELESCOPIC ARM....1496
BOOM SWING CYLINDER....1500
DISASSEMBLY....1500
ASSEMBLY....1501
BOOM SAFETY CYLINDER....1503
REMOVAL....1503
INSTALLATION....1504
BACKHOE WORKING EQUIPMENT....1505
REMOVAL....1505
INSTALLATION....1506
BACKHOE BUCKET....1506
REMOVAL....1506
INSTALLATION....1506
BACKHOE ARM....1507
REMOVAL....1507
INSTALLATION....1507
TELESCOPIC ARM, COMPLETE....1508
REMOVAL....1508
INSTALLATION....1508
2nd ARM....1509
REMOVAL....1509
INSTALLATION....1509
2nd ARM GUIDES....1510
REMOVAL....1510
INSTALLATION....1510
BACKHOE BOOM....1511
REMOVAL....1511
INSTALLATION....1511
BACKHOE SWING BRACKET....1512
REMOVAL....1512
INSTALLATION....1512
BACKHOE OUTRIGGERS....1513
REMOVAL....1513
INSTALLATION....1514
90 OTHERS....1515
HYDRAULIC CIRCUIT (CONTROL VALVE)....1517
HYDRAULIC CIRCUIT (PUMP AND TANK)....1519
ELECTRICAL SCHEMATIC (Sheet 1 of 3)....1521
ELECTRICAL SCHEMATIC (Sheet 2 of 3)....1523
ELECTRICAL SCHEMATIC (Sheet 3 of 3)....1525
AIR CONDITIONER CIRCUIT....1527
Komatsu Backhoe Loaders WB140PSN, WB150PSN Repair Service Manual
