Komatsu WB140-2, WB150-2 Backhoe Loader Shop Manual WEBM004200

Description

• Model List:
  • WB140-2 Backhoe Loader
  • WB150-2 Backhoe Loader

• 1. HOW TO READ THE SHOP MANUAL
• 2. HOISTING INSTRUCTIONS
• 3. STANDARD TIGHTENING TORQUE
• 4. COATING MATERIALS
• 5. ELECTRIC
• 6. WEIGHT TABLE
• 7. TABLE OF OIL AND COOLANT QUANTITIES
• 8. CONVERSION TABLE
• 9. STRUCTURE AND FUNCTION
• 9.1. POWER TRAIN
• 9.2. TRANSMISSION
• 9.3. DRIVE SHAFTS
• 9.4. CONTROL VALVE BLOCK
• 9.5. FRONT AXLE
• 9.6. REAR AXLE
• 9.7. HYDRAULIC PUMP
• 9.8. STEERING UNIT
• 9.9. HYDRAULIC CIRCUIT (WB1402)
• 9.10. HYDRAULIC CIRCUIT (WB1502)
• 9.11. SHOVEL CONTROL VALVE
• 9.12. BACKHOE CONTROL VALVE
• 9.13. CLSS
• 9.14. SOLENOID VALVE
• 9.15. SAFETY VALVE
• 9.16. BRAKE PUMP
• 9.17. SHOVEL CYLINDER
• 9.18. BACKHOE CYLINDER
• 9.19. AIRCONDITIONING UNIT
• 9.20. HOW THE AIRCONDITIONING UNIT FUNCTIONS
• 9.21. ELECTRICAL DIAGRAM
• 9.22. ELECTRICAL DIAGRAM (AIR CONDITIONING)
• 10. TESTING AND ADJUSTMENTS
• 10.1. NORMAL OR STANDARD TECHNICAL DATA
• 10.2. SPECIAL TOOLS
• 10.3. MEASURING ENGINE SPEED
• 10.4. ADJUSTING VALVE CLEARANCE
• 10.5. MEASURING COMPRESSION PRESSURE
• 10.6. TESTING AND ADJUSTING FUEL INJECTION TIMING
• 10.7. CHECKING AND TIGHTENING THE FAN BELT
• 10.8. CHECKING AND TIGHTENING THE COMPRESSOR FAN BELT
• 10.9. MEASURING ACCELERATOR PEDAL OPERATING TRAVEL AND ACCELERATOR LEVER
• 10.10. ADJUSTING BRAKE PEDAL TRAVEL, BRAKE ALIGNMENT, MICROSWITCHES
• 10.11. AIR BLEEDING RELEASING RESIDUAL PRESSURE
• 10.12. CHECKING AND SETTING PRESSURE IN THE ATTACHMENTS HYDRAULIC CIRCUIT
• 10.13. TESTING AND ADJUSTING OF LOAD SENSING SIGNAL (LS VALVE)
• 10.14. TESTING AND ADJUSTING OF UNLOADING VALVE
• 10.15. CHECKING UNLOADING VALVE FUNCTIONALITY
• 10.16. TESTING PRIORITY VALVE OPERATION
• 10.17. TESTING AND SETTING STEERING CONTROL SYSTEM PRESSURE
• 10.18. TESTING BRAKE SYSTEM
• 10.19. CONTROL OF THE ENGINE SPEED UNDER LOAD
• 10.20. TESTING PRESSURES IN THE POWE TRAIN GROUP
• 10.21. TESTING THE CORRECT FUNCTIONING OF THE POWER TRAIN CLUTCHES
• 10.22. ADJUSTING THE SENSOR FOR RETURN TO DIG DEVICE
• 10.23. ANALYSIS OF CAUSES HYDRAULIC DRIFT
• 10.24. TESTING THE AIR CONDITIONING UNIT
• 10.25. EMPTYING THE AIRCONDITIONING UNIT
• 10.26. TROUBLESHOOTING
• 10.26.1. FRONT AXLE TROUBLESHOOTING
• 10.26.2. REAR AXLE TROUBLESHOOTING
• 10.26.3. TRANSMISSION TROUBLESHOOTING
• 11. REMOVAL AND INSTALLATION
• 11.1. HOW TO READ THE MANUAL
• 11.2. PRECAUTIONS TO BE TAKEN WHILE WORKING
• 11.3. SPECIAL TOOLS
• 11.4. STARTING MOTOR
• 11.4.1. REMOVAL AND INSTALLATION
• 11.5. ALTERNATOR
• 11.5.1. REMOVAL
• 11.5.2. INSTALLATION
• 11.6. AIRCONDITIONING UNIT COMPRESSOR
• 11.7. INJECTION NOZZLES
• 11.7.1. REMOVAL AND INSTALLATION
• 11.8. THERMOSTAT
• 11.8.1. REMOVAL AND INSTALLATION
• 11.9. COOLING LIQUID PUMP
• 11.9.1. REMOVAL
• 11.9.2. INSTALLATION
• 11.10. TURBOCOMPRESSOR
• 11.11. ACCUMULATOR DISCONNECTING SWITCH
• 11.11.1. REMOVAL AND INSTALLATION
• 11.12. FRONT COUNTERWEIGHT
• 11.12.1. REMOVAL AND INSTALLATION
• 11.13. RADIATOROIL COOLER UNIT
• 11.13.1. REMOVAL
• 11.13.2. INSTALLATION
• 11.14. CONDENSER
• 11.14.1. REMOVAL AND INSTALLATION
• 11.15. HYDRAULIC OIL COOLER
• 11.15.1. REMOVAL
• 11.15.2. INSTALLATION
• 11.16. TRANSMISSION OIL COOLER
• 11.16.1. REMOVAL AND INSTALLATION
• 11.17. MUFFLER
• 11.17.1. REMOVAL AND INSTALLATION
• 11.18. EXHAUST PIPE
• 11.18.1. REMOVAL AND INSTALLATION
• 11.19. HEAT AND AIRCONDITIONING GROUP
• 11.19.1. REMOVAL
• 11.19.2. INSTALLATION
• 11.20. FUEL TANK
• 11.20.1. REMOVAL AND INSTALLATION
• 11.21. HYDRAULIC OIL TANK
• 11.21.1. REMOVAL AND INSTALLATION
• 11.22. ENGINEGEARBOXPUMP GROUP
• 11.22.1. DISASSEMBLY AND ASSEMBLY
• 11.23. CONVERTOR
• 11.23.1. REMOVAL AND INSTALLATION
• 11.24. TRANSMISSIONREVERSE, DIRECTION INDICATOR AND HEADLIGHT DIPPER BEAM CONTROL GROUP
• 11.24.1. REMOVAL AND INSTALLATION
• 11.25. STEERING UNIT
• 11.25.1. REMOVAL AND INSTALLATION
• 11.26. WORKING BRAKE PUMP GROUP
• 11.26.1. REMOVAL AND INSTALLATION
• 11.27. FRONT WORKING EQUIPMENT CONTROL VALVE
• 11.27.1. REMOVAL AND INSTALLATION
• 11.28. FRONT BUCKET BOOMRAISING CYLINDER
• 11.28.1. REMOVAL AND INSTALLATION
• 11.29. FRONT BUCKET TILT CYLINDERS
• 11.29.1. REMOVAL AND INSTALLATION
• 11.30. FRONT BUCKET
• 11.30.1. REMOVAL AND INSTALLATION
• 11.31. FRONT WORKING EQUIPMENT
• 11.31.1. REMOVAL
• 11.31.2. INSTALLATION
• 11.32. BACKHOE CONTROL VALVE
• 11.32.1. REMOVAL
• 11.32.2. INSTALLATION
• 11.33. BACKHOE BOOM CYLINDER
• 11.33.1. REMOVAL AND INSTALLATION
• 11.34. BACKHOE ARM CYLINDER
• 11.34.1. REMOVAL AND INSTALLATION
• 11.35. TELESCOPIC ARM CYLINDER
• 11.35.1. REMOVAL AND INSTALLATION
• 11.36. BACKHOE BUCKET CYLINDER
• 11.36.1. REMOVAL AND INSTALLATION
• 11.37. OUTRIGGER CYLINDERS
• 11.37.1. REMOVAL AND INSTALLATION
• 11.38. BACKHOE SWING CYLINDERS
• 11.38.1. REMOVAL AND INSTALLATION
• 11.39. CYLINDERS
• 11.39.1. DISASSEMBLY
• 11.39.2. ASSEMBLY
• 11.40. BOOM SWING CYLINDER
• 11.40.1. DISASSEMBLY
• 11.40.2. ASSEMBLY
• 11.41. BOOM SAFETY CYLINDER
• 11.41.1. REMOVAL AND INSTALLATION
• 11.42. BACKHOE WORKING EQUIPMENT
• 11.42.1. REMOVAL AND INSTALLATION
• 11.43. BACKHOE BUCKET
• 11.43.1. REMOVAL AND INSTALLATION
• 11.44.1. REMOVAL AND INSTALLATION
• 11.45. TELESCOPIC ARM
• 11.45.1. REMOVAL AND INSTALLATION
• 11.46. d ARM
• 11.46.1. REMOVAL AND INSTALLATION
• 11.47. d ARM GUIDES
• 11.47.1. REMOVAL AND INSTALLATION
• 11.48. BACKHOE BOOM
• 11.48.1. REMOVAL AND INSTALLATION
• 11.49. BACKHOE SWING BRACKET
• 11.49.1. REMOVAL AND INSTALLATION
• 11.50. BACKHOE OUTRIGGERS
• 11.50.1. REMOVAL
• 11.50.2. INSTALLATION
• 12. STANDARD MAINTENANCE
• 12.1. TRANSMISSION
• 12.2. FRONT AXLE
• 12.3. REAR AXLE
• 12.4. HYDRAULIC PUMP
• 12.5. SPOOL CONTROL VALVE
• 12.6. SPOOL CONTROL VALVE
• 12.7. SPOOL CONTROL VALVE
• 12.8. SPOOL CONTROL VALVE
• 12.9. SPOOL CONTROL VALVE
• 12.10. BRAKE PUMP
• 12.11. SHOVEL CYLINDERS
• 12.12. BACKHOE CYLINDERS
• 12.13. FRONT WORKING EQUIPMENT
• 12.14. SWING BRACKET
• 12.15. BACKHOE WORKING EQUIPMENT