Komatsu WB140PS-2, WB150PS-2 Backhoe Loader Shop Manual WEBM002502

Description

• Model List:
  • WB140PS-2 Backhoe Loader
  • WB150PS-2 Backhoe Loader

• 1. MAIN MENU
• 2. COVER
• 3. CONTENTS
• 4. STRUCTURE AND FUNCTION
• 4.1. POWER TRAIN
• 4.2. TRANSMISSION
• 4.3. DRIVE SHAFTS
• 4.4. CONTROL VALVE BLOCK
• 4.5. FRONT AXLE
• 4.6. REAR AXLE
• 4.7. HYDRAULIC PUMP
• 4.8. HYDRAULIC STEERING SYSTEM
• 4.9. HYDRAULIC CIRCUIT (WB140PS2)
• 4.10. HYDRAULIC CIRCUIT (WB150PS2)
• 4.11. SHOVEL CONTROL VALVE
• 4.12. BACKHOE CONTROL VALVE
• 4.13. CLSS
• 4.14. SAFETY VALVE
• 4.15. SOLENOID VALVE
• 4.16. BRAKE PUMP
• 4.17. SHOVEL CYLINDERS
• 4.18. BACKHOE CYLINDERS
• 4.19. AIRCONDITIONING UNIT
• 4.20. HOW THE AIRCONDITIONING UNIT FUNCTIONS
• 4.21. ELECTRICAL DIAGRAM (1/7)
• 4.22. ELECTRICAL DIAGRAM (2/7)
• 4.23. ELECTRICAL DIAGRAM (3/7)
• 4.24. ELECTRICAL DIAGRAM (4/7)
• 4.25. ELECTRICAL DIAGRAM (5/7)
• 4.26. ELECTRICAL DIAGRAM (6/7)
• 4.27. ELECTRICAL DIAGRAM (7/7)
• 5. TESTING AND ADJUSTMENTS
• 5.1. NORMAL OR STANDARD TECHNICAL DATA
• 5.2. SPECIAL TOOLS
• 5.3. MEASURING ENGINE SPEED
• 5.4. ADJUSTING VALVE CLEARANCE
• 5.5. MEASURING COMPRESSION PRESSURE
• 5.6. TESTING AND ADJUSTING FUEL INJECTION TIMING
• 5.7. CHECKING AND TIGHTENING THE FAN BELT
• 5.8. CHECKING AND TIGHTENING THE COMPRESSOR FAN BELT
• 5.9. MEASURING ACCELERATOR PEDAL OPERATING TRAVEL AND ACCELERATOR LEVER
• 5.10. ADJUSTING BRAKE PEDAL TRAVEL, BRAKE ALIGNMENT, MICROSWITCHES
• 5.11. AIR BLEEDING RELEASING RESIDUAL PRESSURE
• 5.12. CHECKING AND SETTING PRESSURE IN THE ATTACHMENTS HYDRAULIC CIRCUIT
• 5.13. TESTING AND ADJUSTING OF LOAD SENSING SIGNAL (LS VALVE)
• 5.14. CHECKING UNLOADING VALVE FUNCTIONALITY
• 5.15. TESTING PUMP DELIVERY
• 5.16. TESTING PRIORITY VALVE OPERATION
• 5.17. TESTING AND SETTING STEERING CONTROL SYSTEM PRESSURE
• 5.18. TESTING BRAKE SYSTEM
• 5.19. CONTROL OF ENGINE SPEED UNDER LOAD
• 5.20. TESTING PRESSURES IN THE POWER TRAIN GROUP
• 5.21. TESTING THE CORRECT FUNCTIONING OF THE POWER TRAIN CLUTCHES
• 5.22. ADJUSTING THE SENSOR FOR RETURN TO DIG DEVICE
• 5.23. ANALYSIS OF CAUSES HYDRAULIC DRIFT
• 5.24. TESTING THE AIRCONDITIONING UNIT
• 6. REMOVAL AND INSTALLATION
• 6.1. HOW TO READ THE MANUAL
• 6.2. PRECAUTIONS TO BE TAKEN WHILE WORKING
• 6.3. AIRCONDITIONING UNIT COMPRESSOR
• 6.4. INJECTION NOZZLES
• 6.5. COOLING LIQUID PUMP
• 6.5.1. REMOVAL
• 6.5.2. INSTALLATION
• 6.6. TURBOCOMPRESSOR
• 6.7. ACCUMULATOR DISCONNECTING SWITCH
• 6.7.1. REMOVAL
• 6.7.2. INSTALLATION
• 6.8. FRONT COUNTERWEIGHT
• 6.8.1. REMOVAL
• 6.8.2. INSTALLATION
• 6.9. RADIATOROIL COOLER UNIT
• 6.10. HYDRAULIC OIL COOLER
• 6.10.1. REMOVAL
• 6.10.2. INSTALLATION
• 6.11. TRANSMISSION OIL COOLER
• 6.12. HEAT AND AIRCONDITIONING GROUP
• 6.13. HYDRAULIC OIL TANK
• 6.13.1. REMOVAL
• 6.13.2. INSTALLATION
• 6.14. ENGINEGEARBOX PUMP GROUP
• 6.15. TRANSMISSIONREVERSE, DIRECTION INDICATOR AND HEADLIGHT DIPPER BEARM CONTROL GROUP
• 6.16. WORKING BRAKE PUMP GROUP
• 6.16.1. REMOVAL
• 6.16.2. INSTALLATION
• 6.17. FRONT WORKING EQUIPMENT CONTROL VALVE
• 6.18. REAR AXLE FINAL DRIVE
• 6.19. FRONT BUCKET BOOMRAISING CYLINDER
• 6.19.1. REMOVAL
• 6.19.2. INSTALLATION
• 6.20. FRONT BUCKET TILT CYLINDERS
• 6.21. FRONT WORKING EQUIPMENT
• 6.21.1. REMOVAL
• 6.21.2. INSTALLATION
• 6.22. BACKHOE CONTROL VALVE
• 6.22.1. REMOVAL
• 6.22.2. INSTALLATION
• 6.23. BACKHOE BOOM CYLINDER
• 6.23.1. REMOVAL
• 6.23.2. INSTALLATION
• 6.24. BACKHOE ARM CYLINDER
• 6.24.1. REMOVAL
• 6.24.2. INSTALLATION
• 6.25. TELESCOPIC ARM CYLINDER
• 6.25.1. REMOVAL
• 6.25.2. INSTALLATION
• 6.26. BACKHOE BUCKET CYLINDER
• 6.26.1. REMOVAL
• 6.26.2. INSTALLATION
• 6.27. OUTRIGGER CYLINDERS
• 6.27.1. REMOVAL
• 6.27.2. INSTALLATION
• 6.28. BACKHOE SWING CYLINDERS
• 6.29. BOOM SWING CYLINDER
• 6.29.1. DISASSEMBLY
• 6.29.2. ASSEMBLY
• 6.30. BOOM SAFETY CYLINDER
• 6.30.1. REMOVAL
• 6.30.2. INSTALLATION
• 6.31. BACKHOE WORKING EQUIPMENT
• 6.32. BACKHOE SWING BUCKET
• 6.32.1. REMOVAL
• 6.32.2. INSTALLATION
• 6.33. BACKHOE SUPPORTS
• 6.33.1. REMOVAL
• 6.33.2. INSTALLATION
• 7. STANDARD MAINTENANCE
• 7.1. TRANSMISSION
• 7.2. FRONT AXLE
• 7.2.1. DIFFERENTIAL
• 7.2.2. PLANETARY JOINT
• 7.2.3. STEERING UNIT CYLINDER
• 7.3. REAR AXLE
• 7.3.1. DIFFERENTIAL
• 7.3.2. PLANETARY JOINT
• 7.3.3. BRAKES
• 7.3.4. DIFFERENTIAL LOCK
• 7.4. HYDRAULIC PUMP
• 7.5. SPOOL CONTROL VALVE
• 7.6. SPOOL CONTROL VALVE
• 7.7. SPOOL CONTROL VALVE
• 7.8. SPOOL CONTROL VALVE
• 7.9. SPOOL CONTROL VALVE
• 7.10. BRAKE PUMP
• 7.11. SHOVEL CYLINDER
• 7.12. BACKHOE CYLINDERS
• 7.13. FRONT WORKING EQUIPMENT
• 7.14. SWING BRACKET
• 7.15. BACKHOE WORKING EQUIPMENT