Komatsu WB140-2 & WB150-2 Backhoe Loader Workshop Repair Service Manual PDF - MKMTSWB140WB150.zip
A full factory-style service and repair manual, complete with Electrical Wiring Diagrams, covering the Komatsu Backhoe Loader WB140-2 and WB150-2 models — packed with every technical detail needed to service, troubleshoot, overhaul, and rebuild these machines to professional mechanic standards.
The Komatsu Backhoe Loader WB140-2, WB150-2 workshop service repair manual contains:
* 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.
WEAM000902 - Backhoe Loader WB140-2, WB150-2 Operation & Maintenance Manual.pdf
WEAM000903 - Backhoe Loader WB140-2, WB150-2 Operation & Maintenance Manual.pdf
WEAM000904 - Backhoe Loader WB140-2, WB150-2 Operation & Maintenance Manual.pdf
WEBM001102 - Backhoe Loader WB140-2, WB150-2 Shop Manual.pdf
WEBM004200 - Backhoe Loader WB140-2, WB150-2 Shop Manual.pdf
WEBM004601 - Backhoe Loader WB140-2, WB150-2 Shop Manual.pdf
PRODUCT DETAILS:
Total Pages: 1,613 pages
File Format: PDF (Internal Links, Bookmarked, Table of Contents, Searchable, Printable, high quality)
Language: English
TABLE OF CONTENTS
WEAM000902 - Backhoe Loader WB140-2, WB150-2 Operation & Maintenance Manual....1
COVER....1
TABLE OF CONTENTS....2
FOREWORD....10
INFORMATION ON SAFETY....11
INTRODUCTION....13
INTENDED USES....13
IMPROPER OR UNAUTHORIZED USES....13
MAIN CHARACTERISTICS....14
RUNNING-IN ....14
PRODUCT IDENTIFICATION....15
MACHINE SERIAL NUMBER....15
MACHINE IDENTIFICATION PLATE....15
ENGINE SERIAL NUMBER AND EMISSION LABEL....16
FRONT AXLE SERIAL NUMBER....16
REAR AXLE SERIAL NUMBER....16
TRANSMISSION SERIAL NUMBER....17
CAB SERIAL NUMBER....17
CANOPY SERIAL NUMBER....17
SERIAL NUMBERS AND DEALER'S ADDRESS....18
SAFETY AND ACCIDENT PREVENTION....20
1. GENERAL PRECAUTIONS....21
1.1 GENERAL SAFETY RULES....21
1.2 SAFETY DEVICES AND GUARDS....21
1.3 CLOTHING AND PERSONAL PROTECTION ITEMS....21
1.4 UNAUTHORIZED MODIFICATIONS....21
1.5 LEAVING THE OPERATOR'S SEAT....22
1.6 GETTING ON AND OFF THE MACHINE....22
1.7 CHECKING THE REAR-VIEW MIRROR....23
1.8 PREVENTING FIRES DUE TO FUEL AND OIL....23
1.9 PREVENTING BURNS....23
1.10 PREVENTING DAMAGE DUE TO ASBESTOS POWDER ....24
1.11 PREVENTING DAMAGE CAUSED BY THE WORK EQUIPMENT....24
1.12 FIRE EXTINGUISHERS AND FIRST AID KIT....24
1.13 PRECAUTIONS CONCERNING THE CAB STRUCTURE....25
1.14 PRECAUTIONS CONCERNING THE EQUIPMENT....25
PRECAUTIONS....26
2. PRECAUTIONS TO BE TAKEN BEFORE STARTING THE ENGINE....27
2.1 SAFETY ON THE WORK SITE....27
2.2 FIRE PREVENTION....27
2.3 PRECAUTIONS TO BE TAKEN FOR THE OPERATOR'S CAB....27
2.4 ROOM VENTILATION....28
2.5 CLEANING WINDOWS, MIRRORS AND LIGHTS-CHECKING THE WINDSHIELD WIPER BLADES AND THE LIGHT BULBS....28
3. PRECAUTIONS TO BE TAKEN WHEN WORKING....29
3.1 STARTING THE ENGINE....29
3.2 RULES FOR ROAD TRAVEL....29
3.3 CHECKS FOR TRAVELING IN REVERSE....30
3.4 MOVING THE MACHINE....31
3.5 WORKING ON SLOPES....31
3.6 PREVENTING ELECTROCUTION....32
3.7 VISIBILITY....33
3.8 WORKING ON ICY OR SNOW-COVERED SURFACES....33
3.9 PREVENTING DAMAGE CAUSED BY THE WORK EQUIPMENT....33
3.10 WORKING ON LOOSE GROUND....33
3.11 PARKING THE MACHINE....34
4. TRANSPORTING THE MACHINE ON OTHER VEHICLES....35
4.1 LOADING AND UNLOADING....35
4.2 THE ROUTE....35
5. THE BATTERY....36
5.1 SAFETY PRECAUTIONS FOR WORK ON BATTERIES....36
5.2 STARTING THE ENGINE WITH JUMP LEADS....37
6. PRECAUTIONS FOR EMERGENCY RECOVERY....38
7. PRECAUTIONS TO BE TAKEN DURING MAINTENANCE....39
7.1 WARNING PLATES....39
7.2 TOOLS....39
7.3 PERSONAL PRECAUTIONS....39
7.4 EQUIPMENT....40
7.5 WORKING UNDER THE MACHINE....40
7.6 KEEPING THE MACHINE CLEAN....40
7.7 RUNNING THE ENGINE DURING MAINTENANCE....40
7.8 RULES FOR REFUELING AND ADDING OIL....41
7.9 LEVEL OF COOLANT IN THE RADIATOR....41
7.10 USING LAMPS....41
7.11 BATTERY AND ALTERNATOR PRECAUTIONS....42
7.12 PRECAUTIONS CONCERNING THE STARTER....42
7.13 PRECAUTIONS REGARDING HIGH PRESSURE HOSES....42
7.14 PRECAUTIONS TO BE TAKEN WHEN WORKING ON HIGH PRESSURE SYSTEMS....43
7.15 PRECAUTIONS FOR MAINTENANCE WORK INVOLVING HIGH TEMPERATURES AND PRESSURES....43
7.16 THE RADIATOR COOLING FAN AND FAN BELT....43
7.17 WASTE MATERIALS....44
7.18 PRECAUTIONS FOR INFLATING TIRES....44
7.19 PRECAUTIONS FOR THE INSTALLATION OF THE EXHAUST SYSTEM TAILPIPE....44
8. SAFETY PLATES....45
8.1 POSITION OF THE SAFETY PLATES....45
8.2 POSITION OF THE PICTOGRAMS....59
8.3 PICTOGRAMS AND RELEVANT MEANINGS....61
8.4 VIBRATIONS TO WHICH THE OPERATOR IS SUBJECTED....64
TECHNICAL SPECIFICATIONS....66
9. TECHNICAL DATA....67
9.1 STANDARD OVERALL DIMENSIONS....67
9.2 TECHNICAL CHARACTERISTICS WB140-2 (ASPIRATED ENGINE)....68
9.3 TECHNICAL CHARACTERISTICS WB140-2 (TURBOCHARGED ENGINE)....69
9.4 TECHNICAL CHARACTERISTICS WB150-2....70
9.5 LIFTING CAPACITIES....71
9.5.1 SYMBOL TABLE....71
9.5.2 LIFTING CAPACITY WB140-2....72
9.5.3 LIFTING CAPACITY WB150-2....74
DESCRIPTION AND USE OF THE MACHINE....76
10. SAFETY LOCKS....77
10.1 FRONT LOADER LOCK....77
10.2 BACKHOE LOCKS....79
11. GENERAL VIEWS....80
11.1 FRONT GENERAL VIEW....80
11.2 BACKHOE GENERAL VIEW....81
11.3 CAB INSIDE GENERAL VIEW....82
12. INSTRUMENTS AND CONTROLS....83
12.1 FRONT INSTRUMENTS....83
12.2 SIDE INSTRUMENTS....86
12.3 PUSH BUTTONS ON THE FRONT LOADER CONTROL LEVER....90
12.4 PUSH BUTTON ON THE GEARSHIFT LEVER....91
12.5 ELECTRICAL ACCESSORIES....91
12.6 MACHINE CONTROLS....92
13. FUSES AND RELAYS....105
13.1 EQUIPMENT FUSES AND RELAYS....105
13.2 ENGINE FUSES AND RELAYS....107
14. GUARDS, CAB AND DRIVER'S SEAT....109
14.1 ENGINE HOOD....109
14.2 CANOPY....109
14.3 CAB....110
14.4 VENTILATION AND HEATING....112
14.5 SEAT....113
14.6 SAFETY BELT....113
14.7 FIRE EXTINGUISHER....114
14.8 FIRST AID KIT....114
14.9 TECHNICAL DOCUMENTATION....114
14.10 ADDITIONAL TOOL CASE (IF PROVIDED)....114
15. USE OF THE MACHINE....116
15.1 CHECKS BEFORE STARTING THE ENGINE....116
15.1.1 VISUAL CHECKS....116
15.1.2 DAILY CHECKS....116
15.1.3 OPERATIONAL CHECKS....117
15.2 STARTING THE ENGINE....118
15.2.1 STARTING WITH WARM ENGINE OR IN TEMPERATE CLIMATES (MORE THAN 0°C (32°F))....118
15.2.2 STARTING WITH COLD ENGINE OR IN COLD CLIMATES (UP TO -16°C (3°F))....119
15.2.3 STARTING THE ENGINE IN VERY COLD AREAS (UP TO -30°C (-22°F))....119
15.3 WARMING THE ENGINE....120
15.4 HEATING THE HYDRAULIC OIL....120
15.5 HOW TO MOVE THE MACHINE....121
15.5.1 LOCKING THE DIFFERENTIAL....122
15.5.2 ENGAGING THE FOUR-WHEEL DRIVE....122
15.5.3 WORKING ON SLOPES....123
15.5.4 MAXIMUM IMMERSION DEPTH....124
16. PARKING THE MACHINE....125
16.1 PARKING ON LEVEL GROUND....125
16.2 PARKING ON SLOPES....126
17. STOPPING THE ENGINE....127
18. TRANSPORTING THE MACHINE ON OTHER SURFACES....128
18.1 LOADING AND UNLOADING THE MACHINE....128
18.2 TRANSPORT....129
19. PRECAUTIONS TO BE TAKEN IN THE COLD SEASON....130
19.1 FUEL AND LUBRICANTS....130
19.2 COOLANT....130
19.3 BATTERY....130
19.4 OTHER PRECAUTIONS....131
19.5 PRECAUTIONS TO BE TAKEN AT THE END OF WORK....131
20. PRECAUTIONS TO BE TAKEN IN THE WARM SEASON....132
21. USING THE MACHINE AS A LOADER....133
21.1 BUCKET POSITION INDICATOR....133
21.2 ORGANIZING THE WORK AREA....133
21.2.1 LOADING HEAPED AND LEVEL MATERIAL....134
21.2.2 LOADING OPERATIONS ON SLOPES....134
21.3 CHANGING THE STANDARD FRONT BUCKET....135
22. USING THE MACHINE AS AN EXCAVATOR....136
22.1 POSITIONING THE BUCKET ACCORDING TO THE WORK THAT MUST BE CARRIED OUT....136
22.2 POSITIONING THE MACHINE FOR DIGGING OPERATIONS....137
22.3 DIGGING METHOD....138
22.4 CHANGING THE BACKHOE BUCKET....139
23. TROUBLESHOOTING....140
23.1 IF THE FUEL HAS BEEN COMPLETELY DEPLETED....140
23.2 IF THE BATTERY IS DEPLETED....140
23.2.1 STARTING WITH BOOSTER CABLES....141
23.3 OTHER TROUBLES....142
23.3.1 ELECTRICAL CIRCUIT....142
23.3.2 HYDRAULIC SYSTEM....142
23.3.3 BRAKING SYSTEM....143
23.3.4 TORQUE CONVERTER SYSTEM....143
23.3.5 ENGINE....144
MAINTENANCE....146
24. GUIDE TO MAINTENANCE....147
25. MAINTENANCE NOTES....149
25.1 NOTES REGARDING THE ENGINE....149
25.1.1 ENGINE OIL....149
25.1.2 COOLANT....149
25.1.3 FUEL....150
25.2 NOTES REGARDING THE HYDRAULIC SYSTEM....150
25.3 NOTES REGARDING THE ELECTRICAL SYSTEM....151
25.4 NOTES REGARDING LUBRICATION....151
25.5 PARTS SUBJECT TO WEAR THAT PERIODICALLY NEED CHANGING....152
26. FUEL, COOLANT AND LUBRICANTS....153
26.1 LUBRICATION DIAGRAM....157
26.2 LUBRICATION DIAGRAM (MULTIPURPOSE BUCKET AND PALLET FORKS)....158
26.3 LUBRICATION DIAGRAM (FRONT BUCKET RAPID COUPLINGS)....159
26.4 LUBRICATION DIAGRAM (TELESCOPIC ARM)....160
27. NUT AND BOLT TIGHTENING TORQUES....161
27.1 STANDARD TIGHTENING TORQUES....161
27.2 SPECIFIC TIGHTENING TORQUES....161
28. MAINTENANCE PLAN....162
28.1 CHECK BEFORE STARTING....165
28.1.A VARIOUS CHECKS....165
28.1.B CHECKING THE FUEL LEVEL....165
28.1.C CHECKING THE COOLANT LEVEL....166
28.1.D CHECKING THE ENGINE OIL LEVEL....166
28.1.E CHECKING THE HYDRAULIC CIRCUIT OIL LEVEL....167
28.1.F LUBRICATING THE JOINTS....167
28.2 MAINTENANCE EVERY 50 HOURS OF OPERATION....170
28.2.A CHECKING THE RADIATOR FLUID LEVEL....170
28.2.B CHECKING THE BRAKING SYSTEM OIL LEVEL....170
28.2.C LUBRICATING THE PROPELLER SHAFTS....171
28.2.D LUBRICATING THE FRONT AXLE JOINTS CENTRAL COUPLING....172
28.2.E DRAINING THE WATER SEPARATOR....172
28.2.F CHECKING THE TIRE PRESSURE....173
28.2.G CHECKING THE ELECTRICAL SYSTEM....173
28.3 MAINTENANCE AFTER THE FIRST 250 HOURS OF OPERATION....174
28.4 MAINTENANCE EVERY 250 HOURS OF OPERATION....174
28.4.A ADJUSTING THE FAN BELT TENSION....174
28.4.B CLEANING THE OUTSIDE OF THE RADIATORS....175
28.4.C CHECKING THE BATTERY ELECTROLYTE LEVEL....175
28.4.D CHECKING THE FRONT AXLE OIL LEVELS....176
28.4.E CHECKING THE REAR AXLE OIL LEVELS....176
28.4.F CHECKING THE HYDRAULIC TRANSMISSION OIL LEVEL....177
28.4.G CHECKING THE WHEEL NUT DRIVING TORQUE....177
28.5 MAINTENANCE EVERY 500 HOURS OF OPERATION....178
28.5.A CHANGING THE ENGINE OIL....178
28.5.B CHANGING THE ENGINE OIL FILTER....178
28.5.C CHANGING THE HYDRAULIC SYSTEM OIL FILTER....179
28.5.D CHANGING THE FUEL FILTER....180
28.5.E DRAINING THE FUEL TANK....181
28.6 MAINTENANCE EVERY 1000 HOURS OF OPERATION....182
28.6.A CHANGING THE FRONT AXLE OIL....182
28.6.B CHANGING THE REAR AXLE OIL....183
28.6.C CHANGING THE HYDRAULIC TRANSMISSION OIL....184
28.6.D CHANGING THE HYDRAULIC TRANSMISSION FILTER....185
28.6.E CHECKING AND ADJUSTING THE ENGINE VALVE CLEARANCE....185
28.7 MAINTENANCE EVERY 2000 HOURS OF OPERATION....186
28.7.A CHANGING THE HYDRAULIC SYSTEM OIL AND CLEANING THE SUCTION FILTER....186
28.7.B CHANGING THE COOLANT....188
28.7.C CHANGING THE BRAKING SYSTEM OIL....189
28.7.D CHECKING THE ALTERNATOR AND THE STARTER....189
28.8 WHEN REQUIRED....190
28.8.A CHECKING, CLEANING OR CHANGING THE AIR CLEANER CARTRIDGE....190
28.8.B CHECKING AND CLEANING THE CAB AIR FILTER....191
28.8.C BLEEDING THE BRAKING CIRCUIT....192
28.8.D WASHING THE COOLING CIRCUIT....192
28.8.E CLEANING THE WATER SEPARATOR....194
28.8.F CHECKING AND ADJUSTING THE FRONT WHEEL TOE-IN....194
28.8.G CHECKING AND ADJUSTING THE PARKING BRAKE....195
28.8.H CHECKING THE BRAKING EFFICIENCY....196
28.8.J CHECKING AND ADJUSTING THE BRAKE PEDAL STROKE....197
28.8.K ADJUSTING THE AUTOMATIC RETURN OF THE FRONT BUCKET TO THE DIGGING POSTION....197
29. LONG PERIODS OF INACTIVITY....198
29.1 BEFORE THE PERIOD OF INACTIVITY....198
29.2 AFTER THE PERIOD OF INACTIVITY....198
AUTHORIZED OPTIONAL EQUIPMENT....200
30. AUTHORIZED OPTIONAL EQUIPMENT....201
30.1 PRECAUTIONS REGARDING SAFETY....201
30.2 CHARACTERISTICS OF THE OPTIONAL EQUIPMENT FOR MODEL WB140-2....202
30.3 CHARACTERISTICS OF THE OPTIONAL EQUIPMENT FOR MODEL WB150-2....203
31. FRONT EQUIPMENT RAPID COUPLING DEVICES....204
31.1 MANUAL CONTROL RAPID COUPLING....204
31.2 HYDRAULIC CONTROL RAPID COUPLING FOR STANDARD BUCKET....205
31.3 HYDRAULIC CONTROL RAPID COUPLING FOR MULTIPURPOSE BUCKET AND OPTIONAL EQUIPMENT WITH UNIDIRECTIONAL OIL FLOW....205
32. MULTIPURPOSE BUCKET ....206
32.1 DESCRIPTION AND CONTROLS....206
32.2 SAFETY DEVICES....206
32.3 INSTALLING THE MULTIPURPOSE BUCKET....207
32.4 USING THE MULTIPURPOSE BUCKET....208
32.5 MAINTENANCE....208
33. PALLET FORKS....209
33.1 DESCRIPTION....209
33.2 SAFETY DEVICES....209
33.3 USING THE FORKS....209
33.3.1 PREPARING THE PALLET FORKS FOR USE....210
33.3.2 OVERTURNING THE FORKS FOR TRAVEL ON ROADS....210
33.4 REMOVING THE FORKS....211
33.5 INSTALLING THE FORKS....211
33.6 MAINTENANCE....211
34. BACKHOE TELESCOPIC ARM....212
34.1 DESCRIPTION AND CONTROL....212
34.2 SAFETY DEVICES....212