Komatsu WB140PS-2, WB150PS-2 Power-Shift Backhoe Loader Shop Manual WEBM004300

Description

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

• 0.1. HOW TO READ THE SHOP MANUAL
• 0.2. HOISTING INSTRUCTIONS
• 0.3. STANDARD TIGHTENING TORQUE
• 0.4. COATING MATERIALS
• 0.5. WEIGHT TABLE
• 0.6. TABLE OF OIL AND COOLANT QUANTITIES
• 0.7. CONVERSION TABLE
• 1. STRUCTURE AND FUNCTION
• 1.1. POWER TRAIN
• 1.2. TRANSMISSION
• 1.3. DRIVE SHAFTS
• 1.4. CONTROL VALVE BLOCK
• 1.5. FRONT AXLE
• 1.6. REAR AXLE
• 1.7. HYDRAULIC PUMP
• 1.8. STEERING UNIT
• 1.9. HYDRAULIC CIRCUIT (WB140PS2)
• 1.10. HYDRAULIC CIRCUIT (WB150PS2)
• 1.11. SHOVEL CONTROL VALVE
• 1.12. BACKHOE CONTROL VALVE
• 1.13. CLSS
• 1.14. SOLENOID VALVE
• 1.15. SAFETY VALVE
• 1.16. BRAKE PUMP
• 1.17. SHOVEL CYLINDERS
• 1.18. BACKHOE CYLINDERS
• 1.19. AIR CONDITIONING UNIT
• 1.20. HOW THE AIR CONDITIONING UNIT FUNCTIONS
• 1.21. ELECTRICAL DIAGRAM
• 1.22. ELECTRICAL DIAGRAM (AIR CONDITIONING)
• 2. TESTING AND ADJUSTMENTS
• 2.1. NORMAL OR STANDARD TECHNICAL DATA
• 2.2. SPECIAL TOOLS
• 2.3. MEASURING ENGINE SPEED
• 2.4. ADJUSTING VALVE CLEARANCE
• 2.5. MEASURING COMPRESSION PRESSURE
• 2.6. TESTING AND ADJUSTING FUEL INJECTION TIMING
• 2.7. CHECKING AND TIGHTENING THE FANBELT
• 2.8. CHECKING AND TIGHTENING THE COMPRESSOR FANBELT
• 2.9. MEASURING ACCELERATOR PEDAL OPERATING TRAVEL AND ACCELERATOR LEVER
• 2.10. ADJUSTING BRAKE PEDAL TRAVEL, BRAKE ALIGNMENT, MICROSWITCHES
• 2.11. AIR BLEEDING RELEASING RESIDUAL PRESSURE
• 2.12. CHECKING AND SETTING PRESSURE IN THE ATTACHMENTS HYDRAULIC CIRCUIT
• 2.13. TESTING AND ADJUSTING OF LOAD SENSING SIGNAL (LS VALVE)
• 2.14. TESTING AND ADJUSTING OF UNLOADING VALVE
• 2.15. CHECKING UNLOADING VALVE FUNCTIONALITY
• 2.16. TESTING PRIORITY VALVE OPERATION
• 2.17. TESTING AND SETTING STEERING CONTROL SYSTEM PRESSURE
• 2.18. TESTING BRAKE SYSTEM
• 2.19. CONTROL OF ENGINE SPEED UNDER LOAD
• 2.20. TESTING PRESSURES IN THE POWER TRAIN GROUP
• 2.21. TESTING THE CORRECT FUNCTIONING OF THE POWER TRAIN CLUTCHES
• 2.22. ADJUSTING THE SENSOR FOR RETURN TO DIG DEVICE
• 2.23. ANALYSIS OF CAUSES HYDRAULIC DRIFT
• 2.24. TESTING THE AIRCONDITIONING UNIT
• 2.25. EMPTYING THE AIRCONDITIONING UNIT
• 2.26. TROUBLESHOOTING
• 3. REMOVAL AND INSTALLATION
• 3.1. HOW TO READ THE MANUAL
• 3.2. PRECAUTIONS TO BE TAKEN WHILE WORKING
• 3.3. SPECIAL TOOLS
• 3.4. STARTING MOTOR
• 3.5. ALTERNATOR
• 3.6. AIRCONDITIONING UNIT COMPRESSOR
• 3.7. INJECTION PUMP
• 3.8. INJECTION NOZZLES
• 3.9. THERMOSTAT
• 3.10. COOLING LIQUID PUMP
• 3.11. TURBOCOMPRESSOR
• 3.12. CYLINDER HEAD
• 3.13. ACCUMULATOR DISCONNECTING SWITCH
• 3.14. FRONT COUNTERWEIGHT
• 3.15. RADIATOROIL COOLER UNIT
• 3.16. CONDENSER
• 3.17. HYDRAULIC OIL COOLER
• 3.18. TRANSMISSION OIL COOLER
• 3.19. MUFFLER
• 3.20. EXHAUST PIPE
• 3.21. ENGINE HOOD
• 3.23. HEAT AND AIRCONDITIONING GROUP
• 3.24. FUEL TANK
• 3.25. HYDRAULIC OIL TANK
• 3.26. ENGINEGEARBOXPUMP GROUP
• 3.27. PISTON PUMP
• 3.28. TRANSMISSION
• 3.29. CONVERTOR
• 3.30. TRANSMISSIONREVERSE, DIRECTION INDICATOR AND HEADLIGHT DIPPER BEAM CONTROL GROUP
• 3.31. STEERING UNIT
• 3.32. WORKING BRAKE PUMP GROUP
• 3.33. FRONT WORKING EQUIPMENT CONTROL VALVE
• 3.34. FRONT AXLE
• 3.35. REAR AXLE
• 3.36. FRONT BUCKET BOOMRAISING CYLINDER
• 3.37. FRONT BUCKET TILT CYLINDERS
• 3.38. FRONT BUCKET
• 3.39. FRONT WORKING EQUIPMENT
• 3.40. BACKHOE CONTROL VALVE
• 3.41. BACKHOE BOOM CYLINDER
• 3.42. BACKHOE ARM CYLINDER
• 3.43. TELESCOPIC ARM CYLINDER
• 3.44. BACKHOE BUCKET CYLINDER
• 3.45. OUTRIGGER CYLINDERS
• 3.46. BACKHOE SWING CYLINDERS
• 3.47. CYLINDERS
• 3.48. BOOM SWING CYLINDER
• 3.49. BOOM SAFETY CYLINDER
• 3.50. BACKHOE WORKING EQUIPMENT
• 3.51. BACKHOE BUCKET
• 3.52. THE ARM
• 3.53. COMPLETE TELESCOPIC ARM
• 3.54. D ARM
• 3.55. D ARM GUIDES
• 3.56. BACKHOE BOOM
• 3.57. BACKHOE SWING BRACKET
• 3.58. BACKHOE OUTRIGGERS
• 4. STANDARD MAINTENANCE
• 4.1. TRANSMISSION
• 4.2. FRONT AXLE
• 4.3. REAR AXLE
• 4.4. HYDRAULIC PUMP
• 4.5. SPOOL CONTROL VALVE
• 4.6. SPOOL CONTROL VALVE
• 4.7. SPOOL CONTROL VALVE
• 4.8. SPOOL CONTROL VALVE
• 4.9. SPOOL CONTROL VALVE
• 4.10. BRAKE PUMP
• 4.11. SHOVEL CYLINDERS
• 4.12. BACKHOE CYLINDERS
• 4.13. FRONT WORKING EQUIPMENT
• 4.14. SWING BRACKET
• 4.15. BACKHOE WORKING EQUIPMENT