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KOMATSU WB140PS-2 WB150PS-2 POWER SHIFT BACKHOE LOADER SHOP MANUAL – PDF DOWNLOAD
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KOMATSU WB140PS-2 WB150PS-2 POWER SHIFT BACKHOE LOADER SHOP MANUAL WEBM004700 – PDF DOWNLOAD
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Description
KOMATSU WB140PS-2 WB150PS-2 POWER SHIFT BACKHOE LOADER SHOP MANUAL WEBM004700 – PDF DOWNLOAD.
FILE DETAILS:
KOMATSU WB140PS-2 WB150PS-2 POWER SHIFT BACKHOE LOADER SHOP MANUAL WEBM004700 – PDF DOWNLOAD
Language : English
Pages : 492
Downloadable : Yes
File Type : PDF
IMAGES PREVIEW OF THE MANUAL:
TABLE OF CONTENTS:
KOMATSU WB140PS-2 WB150PS-2 POWER SHIFT BACKHOE LOADER SHOP MANUAL WEBM004700 – PDF DOWNLOAD
MAIN MENU.................................................................................................................... 0 COVER........................................................................................................................ 1 CONTENTS..................................................................................................................... 3 SAFETY....................................................................................................................... 7 FOREWORD..................................................................................................................... 9 HOW TO READ THE SHOP MANUAL.............................................................................................. 10 HOISTING INSTRUCTIONS.................................................................................................... 11 STANDARD TIGHTENING TORQUE............................................................................................... 12 COATING MATERIALS........................................................................................................ 14 WEIGHT TABLE............................................................................................................. 16 TABLE OF OIL AND COOLANT QUANTITIES...................................................................................... 17 CONVERSION TABLE......................................................................................................... 19 10 STRUCTURE AND FUNCTION.................................................................................................... 29 POWER TRAIN.............................................................................................................. 30 TRANSMISSION............................................................................................................. 32 DRIVE SHAFTS............................................................................................................. 36 CONTROL VALVE BLOCK...................................................................................................... 38 FRONT AXLE............................................................................................................... 40 REAR AXLE................................................................................................................ 43 HYDRAULIC PUMP........................................................................................................... 48 STEERING UNIT............................................................................................................ 69 HYDRAULIC CIRCUIT (WB140PS-2)............................................................................................ 71 HYDRAULIC CIRCUIT (WB150PS-2)............................................................................................ 72 SHOVEL CONTROL VALVE..................................................................................................... 74 BACKHOE CONTROL VALVE.................................................................................................... 78 CLSS..................................................................................................................... 85 SOLENOID VALVE........................................................................................................... 99 SAFETY VALVE.............................................................................................................100 BRAKE PUMP...............................................................................................................102 SHOVEL CYLINDERS.........................................................................................................103 BACKHOE CYLINDERS........................................................................................................104 AIR-CONDITIONING UNIT....................................................................................................107 HOW THE AIR CONDITIONING UNIT FUNCTIONS..................................................................................108 ELECTRICAL DIAGRAM.......................................................................................................109 ELECTRICAL DIAGRAM (AIR CONDITIONING)....................................................................................111 20 TESTING AND ADJUSTMENTS...................................................................................................115 NORMAL OR STANDARD TECHNICAL DATA........................................................................................116 SPECIAL TOOLS............................................................................................................140 MEASURING ENGINE SPEED...................................................................................................141 ADJUSTING VALVE CLEARANCE................................................................................................142 MEASURING COMPRESSION PRESSURE...........................................................................................143 TESTING AND ADJUSTING FUEL INJECTION TIMING..............................................................................144 CHECKING AND TIGHTENING THE FAN-BELT.....................................................................................146 CHECKING AND TIGHTENING THE COMPRESSOR FAN-BELT..........................................................................147 MEASURING ACCELERATOR PEDAL OPERATING TRAVEL AND ACCELERATOR LEVER.......................................................148 ADJUSTING BRAKE PEDAL TRAVEL, BRAKE ALIGNMENT, MICROSWITCHES.............................................................150 AIR BLEEDING- RELEASING RESIDUAL PRESSURE................................................................................151 CHECKING AND SETTING PRESSURE IN THE ATTACHMENTS HYDRAULIC CIRCUIT.......................................................154 TESTING AND ADJUSTING OF LOAD SENSING SIGNAL (LS VALVE)..................................................................160 TESTING AND ADJUSTING OF UNLOADING VALVE.................................................................................161 CHECKING UNLOADING VALVE FUNCTIONALITY...................................................................................162 TESTING PRIORITY VALVE OPERATION.........................................................................................163 TESTING AND SETTING STEERING CONTROL SYSTEM PRESSURE.....................................................................164 TESTING BRAKE SYSTEM.....................................................................................................165 CONTROL OF THE ENGINE SPEED UNDER LOAD...................................................................................167 TESTING PRESSURES IN THE POWER TRAIN GROUP...............................................................................169 TESTING THE CORRECT FUNCTIONING OF THE POWER TRAIN CLUTCHES..............................................................171 ADJUSTING THE SENSOR FOR RETURN TO DIG DEVICE............................................................................172 ANALYSIS OF CAUSES HYDRAULIC DRIFT.......................................................................................173 TESTING THE AIR-CONDITIONING UNIT........................................................................................178 EMPTYING THE AIR-CONDITIONING UNIT.......................................................................................180 TROUBLESHOOTING..........................................................................................................181 FRONT AXLE TROUBLESHOOTING...........................................................................................182 REAR AXLE TROUBLESHOOTING............................................................................................187 TRANSMISSION TROUBLESHOOTING.........................................................................................192 CHECKING AND INSPECTION OF THE ELECTRONIC CONTROL UNIT...............................................................195 30 REMOVAL AND INSTALLATION..................................................................................................199 HOW TO READ THE MANUAL...................................................................................................201 PRECAUTIONS TO BE TAKEN WHILE WORKING....................................................................................202 SPECIAL TOOLS............................................................................................................203 STARTING MOTOR...........................................................................................................207 REMOVAL OF STARTING MOTOR............................................................................................207 INSTALLATION OF THE STARTING MOTOR...................................................................................207 ALTERNATOR...............................................................................................................208 REMOVAL OF THE ALTERNATOR............................................................................................208 INSTALLATION OF THE ALTERNATOR.......................................................................................209 AIR-CONDITIONING UNIT COMPRESSOR.........................................................................................210 REMOVAL OF THE AIR-CONDITIONING UNIT COMPRESSOR......................................................................210 INSTALLATION OF THE AIR-CONDITIONING UNIT COMPRESSOR.................................................................211 INJECTION PUMP...........................................................................................................212 REMOVAL OF THE INJECTION PUMP........................................................................................212 INSTALLATION OF THE INJECTION PUMP...................................................................................215 INJECTION NOZZLES........................................................................................................216 REMOVAL AND INSTALLATION OF THE INJECTION NOZZLES....................................................................216 THERMOSTAT...............................................................................................................217 REMOVAL AND INSTALLATION OF THE THERMOSTAT...........................................................................217 COOLING LIQUID PUMP......................................................................................................218 REMOVAL OF THE COOLING LIQUID PUMP...................................................................................218 INSTALLATION OF THE COOLING LIQUID PUMP..............................................................................219 TURBOCOMPRESSOR..........................................................................................................220 REMOVAL OF THE TURBOCOMPRESSOR.......................................................................................220 INSTALLATION OF THE TURBOCOMPRESSOR..................................................................................221 CYLINDER HEAD............................................................................................................222 REMOVAL OF THE CYLINDER HEAD.........................................................................................222 INSTALLATION OF THE CYLINDER HEAD....................................................................................224 ACCUMULATOR DISCONNECTING SWITCH.........................................................................................226 REMOVAL AND INSTALLATION OF THE ACCUMULATOR DISCONNECTING SWITCH.....................................................226 FRONT COUNTERWEIGHT......................................................................................................227 REMOVAL AND INSTALLATION OF THE FRONT COUNTERWEIGHT..................................................................227 RADIATOR-OIL COOLER UNIT.................................................................................................228 REMOVAL OF THE RADIATOR-OIL COOLER UNIT..............................................................................228 INSTALLATION OF THE RADIATOR GROUP...................................................................................230 CONDENSER................................................................................................................231 REMOVAL AND INSTALLATION OF THE CONDENSER............................................................................231 MUFFLER..................................................................................................................232 REMOVAL AND INSTALLATION OF THE MUFFLER..............................................................................232 EXHAUST PIPE.............................................................................................................233 REMOVAL AND INSTALLATION OF THE EXHAUST PIPE.........................................................................233 ENGINE HOOD..............................................................................................................234 REMOVAL OF THE ENGINE HOOD...........................................................................................234 INSTALLATION OF THE ENGINE HOOD......................................................................................235 CAB......................................................................................................................236 REMOVAL OF THE CAB...................................................................................................236 INSTALLATION OF THE CAB..............................................................................................239 HEAT AND AIR-CONDITIONING GROUP..........................................................................................240 REMOVAL OF THE HEAT AND AIR-CONDITIONING GROUP.......................................................................240 INSTALLATION OF THE HEAT AND AIR-CONDITIONING GROUP..................................................................241 FUEL TANK................................................................................................................242 REMOVAL AND INSTALLATION OF THE FUEL TANK............................................................................242 HYDRAULIC OIL TANK.......................................................................................................243 REMOVAL AND INSTALLATION OF THE HYDRAULIC OIL TANK...................................................................243 ENGINE GEARBOX-PUMP GROUP................................................................................................244 REMOVAL OF THE ENGINE GEARBOX-PUMP GROUP.............................................................................244 INSTALLATION OF THE ENGINE GEARBOX-PUMP GROUP........................................................................249 PISTON PUMP..............................................................................................................250 REMOVAL OF THE PISTON PUMP...........................................................................................250 INSTALLATION OF THE PISTON PUMP......................................................................................251 TRANSMISSION.............................................................................................................252 REMOVAL OF THE TRANSMISSION..........................................................................................252 INSTALLATION OF THE TRANSMISSION.....................................................................................255 DISASSEMBLY AND ASSEMBLY OF TRANSMISSION.............................................................................257 CONVERTOR................................................................................................................355 REMOVAL AND INSTALLATION OF THE CONVERTOR............................................................................355 TRANSMISSION-REVERSE, DIRECTION INDICATOR AND HEADLIGHT DIPPER BEAM CONTROL GROUP........................................356 REMOVAL AND INSTALLATION OF THE TRANSMISSION-REVERSE, DIRECTION INDICATOR AND HEADLIGHT DIPPER BEAM CONTROL GROUP....356 STEERING UNIT............................................................................................................357 REMOVAL AND INSTALLATION OF THE STEERING UNIT........................................................................357 WORKING BRAKE PUMP GROUP.................................................................................................358 REMOVAL AND INSTALLATION OF THE WORKING BRAKE PUMP GROUP.............................................................358 FRONT WORKING EQUIPMENT CONTROL VALVE....................................................................................359 REMOVAL AND INSTALLATION OF THE FRONT WORKING EQUIPMENT CONTROL VALVE................................................359 FRONT AXLE...............................................................................................................360 REMOVAL OF THE FRONT AXLE............................................................................................360 INSTALLATION OF THE FRONT AXLE.......................................................................................361 DISASSEMBLY OF THE FRONT AXLE........................................................................................362 ASSEMBLY OF FRONT AXLE...............................................................................................371 REAR AXLE................................................................................................................387 REMOVAL OF THE REAR AXLE.............................................................................................387 INSTALLATION OF THE REAR AXLE........................................................................................388 DISASSEMBLY OF REAR AXLE.............................................................................................389 ASSEMBLY OF REAR AXLE................................................................................................404 FRONT BUCKET BOOM-RAISING CYLINDER.......................................................................................423 REMOVAL AND INSTALLATION OF FRONT BUCKET BOOM-RAISING CYLINDER.......................................................423 FRONT BUCKET TILT CYLINDERS..............................................................................................424 REMOVAL AND INSTALLATION OF FRONT BUCKET TILT CYLINDERS..............................................................424 FRONT BUCKET.............................................................................................................425 REMOVAL AND INSTALLATION OF FRONT BUCKET.............................................................................425 FRONT WORKING EQUIPMENT..................................................................................................426 REMOVAL OF FRONT WORKING EQUIPMENT...................................................................................426 INSTALLATION OF FRONT WORKING EQUIPMENT..............................................................................427 BACKHOE CONTROL VALVE....................................................................................................428 REMOVAL OF THE BACKHOE CONTROL VALVE.................................................................................428 INSTALLATION OF THE BACKHOE CONTROL VALVE............................................................................429 BACKHOE BOOM CYLINDER....................................................................................................430 REMOVAL AND INSTALLATION OF THE BACKHOE BOOM CYLINDER................................................................430 BACKHOE ARM CYLINDER.....................................................................................................431 REMOVAL AND INSTALLATION OF THE BACKHOE ARM CYLINDER.................................................................431 TELESCOPIC ARM CYLINDER..................................................................................................432 REMOVAL AND INSTALLATION OF THE TELESCOPIC ARM CYLINDER..............................................................432 BACKHOE BUCKET CYLINDER..................................................................................................433 REMOVAL AND INSTALLATION OF THE BACKHOE BUCKET CYLINDER..............................................................433 OUTRIGGER CYLINDERS......................................................................................................434 REMOVAL AND INSTALLATION OF THE OUTRIGGER CYLINDERS..................................................................434 BACKHOE SWING CYLINDERS..................................................................................................435 REMOVAL AND INSTALLATION OF THE BACKHOE SWING CYLINDERS..............................................................435 CYLINDERS................................................................................................................436 DISASSEMBLY OF CYLINDERS.............................................................................................436 ASSEMBLY OF CYLINDERS................................................................................................438 BOOM SWING CYLINDER......................................................................................................441 DISASSEMBLY OF BOOM SWING CYLINDER...................................................................................441 ASSEMBLY OF BOOM SWING CYLINDER......................................................................................442 BOOM SAFETY CYLINDER.....................................................................................................444 REMOVAL AND INSTALLATION OF THE BOOM SAFETY CYLINDER.................................................................444 BACKHOE WORKING EQUIPMENT................................................................................................445 REMOVAL AND INSTALLATION OF THE BACKHOE WORKING EQUIPMENT............................................................445 BACKHOE BUCKET...........................................................................................................446 REMOVAL AND INSTALLATION OF THE BACKHOE BUCKET.......................................................................446 ARM......................................................................................................................447 REMOVAL AND INSTALLATION OF THE ARM..................................................................................447 TELESCOPIC ARM...........................................................................................................448 REMOVAL AND INSTALLATION OF THE COMPLETE TELESCOPIC ARM..............................................................448 2ND ARM..................................................................................................................449 REMOVAL AND INSTALLATION OF 2ND ARM..................................................................................449 2ND ARM GUIDES...........................................................................................................450 REMOVAL AND INSTALLATION OF 2ND ARM GUIDES...........................................................................450 BACKHOE BOOM.............................................................................................................451 REMOVAL AND INSTALLATION OF THE BACKHOE BOOM.........................................................................451 BACKHOE SWING BRACKET....................................................................................................452 REMOVAL AND INSTALLATION OF THE BACKHOE SWING BRACKET................................................................452 BACKHOE OUTRIGGERS.......................................................................................................453 REMOVAL OF THE BACKHOE OUTRIGGERS....................................................................................453 INSTALLATION OF THE BACKHOE OUTRIGGERS...............................................................................454 40 STANDARD MAINTENANCE......................................................................................................457 TRANSMISSION.............................................................................................................458 FRONT AXLE...............................................................................................................461 REAR AXLE................................................................................................................464 HYDRAULIC PUMP...........................................................................................................468 2-SPOOL CONTROL VALVE....................................................................................................470 3-SPOOL CONTROL VALVE....................................................................................................472 6-SPOOL CONTROL VALVE....................................................................................................474 7-SPOOL CONTROL VALVE....................................................................................................477 8-SPOOL CONTROL VALVE....................................................................................................479 BRAKE PUMP...............................................................................................................480 SHOVEL CYLINDERS.........................................................................................................481 BACKHOE CYLINDERS........................................................................................................482 FRONT WORKING EQUIPMENT..................................................................................................486 SWING BRACKET............................................................................................................488 BACKHOE WORKING EQUIPMENT................................................................................................490
DESCRIPTION:
KOMATSU WB140PS-2 WB150PS-2 POWER SHIFT BACKHOE LOADER SHOP MANUAL WEBM004700 – PDF DOWNLOAD
This shop manual has been prepared as an aid to improve the quality of repairs by giving the operator an accurate understanding of the product and by showing him the correct way to perform repairs and make judgements. Make sure you understand the contents of this manual and use it to full effect at every opportunity.
This shop manual mainly contains the necessary technical information for operations performed in a service workshop. The manual is divided into chapters on each main group of components; these chapters are further divided into the following sections.
STRUCTURE AND FUNCTION
This section explains the structure and function of each component. It serves not only to give an understanding of the structure, but also serves as reference material for troubleshooting.
TESTING AND ADJUSTING
This sections explains checks to be made before and after performing repairs, as well as adjustments to be made at completion of the checks and repairs. Troubleshooting charts correlating «Problems» to «Causes» are also included in this section.
DISASSEMBLY AND ASSEMBLY
This section explains the order to be followed when removing, installing, disassembling or assembling each component, as well as precautions to be taken for these operations.
MAINTENANCE STANDARD
This section gives the judgement standards when inspecting disassembled parts.
S.S 24/12/24
