Komatsu WA450-3 Wheel Loader Shop Manual CEBM000401

Description

• Model List:
  • WA450-3 Wheel Loader

• 1. MAIN MENU
• 2. CONTENTS
• 3. GENERAL
• 3.1. SPECIFICATION DRAWINGS
• 3.2. SPECIFICATIONS
• 3.3. WEIGHT TABLE
• 3.4. FUEL, COOLANT AND LUBRICANTS
• 3.5. ENGINE OIL SPECIFICATIONS
• 3.6. DIESEL FUEL SPECIFICATIONS
• 3.7. COOLANT SPECIFICATIONS
• 4. STRUCTURE AND FUNCTION
• 4.1. POWER TRAIN
• 4.2. POWER TRAIN SYSTEM
• 4.3. TORQUE CONVERTER, TRANSMISSION PIPING
• 4.4. TRANSMISSION HYDRAULIC SYSTEM DIAGRAM
• 4.5. TRANSMISSION HYDRAULIC CIRCUIT DIAGRAM
• 4.6. TORQUE CONVERTER
• 4.7. TORQUE CONVERTER OIL FILTER
• 4.8. TRANSMISSION
• 4.9. TRANSMISSION CONTROL VALVE
• 4.10. MODULATION VALVE
• 4.11. TRANSMISSION SOLENOID VALVE
• 4.12. ELECTRONIC CONTROL MODULATION VALVE (ECMV)
• 4.13. PILOT OIL FILTER
• 4.14. DRIVE SHAFT
• 4.15. AXLE
• 4.16. DIFFERENTIAL
• 4.17. FINAL DRIVE
• 4.18. AXLE MOUNT, CENTER HINGE PIN
• 4.19. STEERING PIPING
• 4.20. STEERING COLUMN
• 4.21. STEERING VALVE
• 4.22. ORBITROLL VALVE
• 4.23. STOP VALVE
• 4.24. EMERGENCY STEERING PUMP
• 4.25. DIVERTER VALVE
• 4.26. BRAKE PIPING
• 4.27. BRAKE CIRCUIT DIAGRAM
• 4.28. BRAKE VALVE
• 4.29. CHARGE VALVE
• 4.30. ACCUMULATOR (FOR BRAKE)
• 4.31. SLACK ADJUSTER
• 4.32. BRAKE
• 4.33. PARKING BRAKE CONTROL
• 4.34. PARKING BRAKE
• 4.35. PARKING BRAKE SOLENOID VALVE
• 4.36. PARKING BRAKE VALVE
• 4.37. PARKING BRAKE EMERGENCY RELEASE SOLENOID VALVE
• 4.38. HYDRAULIC PIPING
• 4.39. WORK EQUIPMENT HYDRAULIC SYSTEM DIAGRAM
• 4.40. WORK EQUIPMENT HYDRAULIC CIRCUIT DIAGRAM
• 4.41. WORK EQUIPMENT LEVER LINKAGE
• 4.42. HYDRAULIC TANK
• 4.43. PPC VALVE
• 4.44. PPC RELIEF VALVE
• 4.45. ACCUMULATOR (FOR PPC VALVE)
• 4.46. CUTOFF VALVE
• 4.47. MAIN CONTROL VALVE
• 4.48. WORK EQUIPMENT LINKAGE
• 4.49. BUCKET
• 4.50. BUCKET POSITIONER AND BOOM KICKOUT
• 4.52. AIR CONDITIONER
• 4.53. AIR CONDITIONER CONTROL PANEL (EAGLE)
• 4.54. ELECTRIC CIRCUIT DIAGRAM
• 4.55. ELECTRICAL CIRCUIT DIAGRAM (EAGLE A/C)
• 4.56. ELECTRIC CIRCUIT DIAGRAM (WORK EQUIPMENT CONTROLLER)
• 4.57. ELECTRIC CIRCUIT DIAGRAM (E.C.S.S.)
• 4.58. ELECTRIC CIRCUIT DIAGRAM (AUTOGREASING)
• 4.59. MACHINE MONITOR SYSTEM
• 4.60. MAIN MONITOR
• 4.61. MAINTENANCE MONITOR
• 4.62. WORK EQUIPMENT CONTROL SYSTEM
• 4.63. (ELECTRIC CONTROLLED SUSPENSION SYSTEM)
• 4.64. SENSORS
• 4.65. ENGINE STARTING CIRCUIT
• 4.66. ENGINE STOP CIRCUIT
• 4.67. ETHER START CIRCUIT
• 4.68. ELECTRIC TRANSMISSION CONTROL
• 4.69. KICKDOWN SWITCH
• 4.70. KICKDOWN ELECTRIC CIRCUIT DIAGRAM
• 4.71. TRANSMISSION CUTOFF SWITCH
• 4.72. TRANSMISSION CUTOFF FUNCTION
• 4.73. ELECTRIC PARKING BRAKE CONTROL
• 5. TESTING AND ADJUSTING
• 5.1. STANDARD VALUE TABLE FOR ENGINE
• 5.2. STANDARD VALUE TABLE FOR CHASSIS
• 5.3. STANDARD VALUE TABLE FOR ELECTRICAL PARTS
• 5.4. TOOLS FOR TESTING, ADJUSTING, TROUBLESHOOTING
• 5.5. MEASURING ENGINE SPEEDS
• 5.6. MEASURING INTAKE MANIFOLD PRESSURE
• 5.7. MEASURING INTAKE AIR RESTRICTION
• 5.8. MEASURING ENGINE LUBRICATION OIL PRESSURE
• 5.9. MEASURING FUEL FILTER INLET RESTRICTION
• 5.10. MEASURING BLOWBY PRESSURE
• 5.11. MEASURING ENGINE BACK PRESSURE
• 5.12. MEASURING COOLANT TEMPERATURE
• 5.13. MEASURING AND ADJUSTING VALVE CLEARANCE
• 5.14. MEASURING ACCELERATOR PEDAL
• 5.15. MEASURING OPERATING FORCE, TRAVEL OF SPEED LEVER
• 5.16. MEASURING STALL SPEED
• 5.17. MEASURING TORQUE CONVERTER, TRANSMISSION, PARKING BRAKE OIL PRESSURE
• 5.18. METHOD OF OPERATING EMERGENCY MANUAL SPOOL
• 5.19. MEASURING CLEARANCE BETWEEN TIRE AND WHEEL
• 5.20. TESTING AND ADJUSTING STEERING WHEEL
• 5.21. TESTING AND ADJUSTING STEERING CONTROL
• 5.22. MEASURING STEERING OIL PRESSURE
• 5.23. MEASURING OPERATING FORCE, TRAVEL OF BRAKE PEDAL
• 5.24. TESTING BRAKE OIL PRESSURE
• 5.25. MEASURING BRAKE PERFORMANCE
• 5.26. MEASURING BRAKE DISC WEAR
• 5.27. BLEEDING AIR FROM BRAKE SYSTEM
• 5.28. MEASURING PARKING BRAKE PERFORMANCE
• 5.29. MANUAL RELEASE METHOD FOR PARKING BRAKE
• 5.30. TESTING WEAR OF PARKING BRAKE DISC
• 5.31. MEASURING WORK EQUIPMENT CONTROL LEVER
• 5.32. MEASURING WORK EQUIPMENT HYDRAULIC PRESSURE
• 5.33. MEASURING WORK EQUIPMENT
• 5.34. TESTING AND ADJUSTING BUCKET POSITIONER
• 5.35. TESTING AND ADJUSTING BOOM KICKOUT
• 5.36. ADJUSTING MAIN MONITOR (SPEEDOMETER MODULE)
• 5.37. CHECKING FOR ABNORMALITY IN FUEL LEVEL SENSOR
• 5.38. TROUBLESHOOTING
• 5.38.1. POINTS TO REMEMBER WHEN TROUBLESHOOTING
• 5.38.2. SEQUENCE OF EVENTS IN TROUBLESHOOTING
• 5.38.3. PRECAUTIONS WHEN CARRYING OUT MAINTENANCE
• 5.38.4. HANDLING CONNECTORS
• 5.38.5. CHECKS BEFORE TROUBLESHOOTING
• 5.38.6. METHOD OF USING TROUBLESHOOTING CHARTS
• 5.38.7. CONNECTOR TYPES AND MOUNTING LOCATIONS, CONNECTOR PIN ARRANGEMENT DIAGRAM
• 5.38.8. CONNECTOR TABLE FOR CONNECTOR PIN NUMBERS
• 5.38.9. TROUBLESHOOTING OF ENGINE SYSTEM (S MODE)
• 5.38.10. TROUBLESHOOTING OF MAIN MONITOR SYSTEM (M MODE)
• 5.38.11. TROUBLESHOOTING OF MAINTENANCE MONITOR SYSTEM (K MODE)
• 5.38.12. TROUBLESHOOTING OF ELECTRICAL SYSTEM (E MODE)
• 5.38.13. TROUBLESHOOTING OF HYDRAULIC AND MECHANICAL SYSTEM (CHASSIS RELATED) (T MODE)
• 5.38.14. TROUBLESHOOTING OF TRANSMISSION CONTROLLER SYSTEM (A MODE)
• 5.38.15. TROUBLESHOOTING OF ECSS (ELECTRONICALLY CONTROLLED SUSPENSION SYSTEM) (IF EQUIPED) (D MODE)
• 5.38.16. TROUBLESHOOTING EAGLE AIR CONDITIONER
• 6. DISASSEMBLY AND ASSEMBLY
• 6.1. METHOD OF USING MANUAL
• 6.2. PRECAUTIONS WHEN CARRYING OUT OPERATION
• 6.3. SPECIAL TOOL LIST
• 6.4. STARTING MOTOR (SEE ENGINE SHOP MANUAL)
• 6.5. ALTERNATOR (SEE ENGINE SHOP MANUAL)
• 6.6. ENGINE OIL COOLER (SEE SHOP MANUAL)
• 6.7. FUEL INJECTION PUMP (SEE ENGINE SHOP MANUAL)
• 6.8. WATER PUMP (SEE ENGINE SHOP MANUAL)
• 6.9. TURBOCHARGER (SEE ENGINE SHOP MANUAL)
• 6.10. NOZZLE HOLDER (SEE ENGINE SHOP MANUAL)
• 6.11. THERMOSTAT (SEE ENGINE SHOP MANUAL)
• 6.12. CYLINDER HEAD (SEE ENGINE SHOP MANUAL)
• 6.13. TORQUE CONVERTER, TRANSMISSION
• 6.13.1. REMOVAL
• 6.13.2. INSTALLATION
• 6.14. TORQUE CONVERTER
• 6.15. TRANSMISSION CLUTCH PACK
• 6.16. TRANSMISSION CONTROL VALVE
• 6.16.1. REMOVAL
• 6.16.2. INSTALLATION
• 6.16.3. DISASSEMBLY
• 6.16.4. ASSEMBLY
• 6.17. TRANSMISSION ACCUMULATOR VALVE
• 6.18. FRONT DIFFERENTIAL
• 6.18.1. REMOVAL
• 6.18.2. INSTALLATION
• 6.19. REAR DIFFERENTIAL
• 6.20. CENTER HINGE PIN
• 6.20.1. REMOVAL
• 6.20.2. INSTALLATION
• 6.21. STEERING VALVE (ORBITROLL)
• 6.22. STEERING DEMAND VALVE
• 6.22.1. DISASSEMBLY
• 6.22.2. ASSEMBLY
• 6.23. STEERING, SWITCH PUMP
• 6.23.1. REMOVAL
• 6.23.2. INSTALLATION
• 6.24. STEERING CYLINDER
• 6.25. RIGHT BRAKE VALVE (TANDEM)
• 6.25.1. DISASSEMBLY
• 6.25.2. ASSEMBLY
• 6.26. LEFT BRAKE VALVE
• 6.27. PARKING BRAKE DISC
• 6.28. WORK EQUIPMENT, PPC PUMP
• 6.29. MAIN CONTROL VALVE
• 6.29.1. REMOVAL
• 6.29.2. INSTALLATION
• 6.29.3. DISASSEMBLY
• 6.29.4. ASSEMBLY
• 6.30. BUCKET CYLINDER
• 6.31. HYDRAULIC CYLINDER
• 6.32. MAINTENANCE MONITOR
• 6.32.1. REMOVAL
• 6.32.2. INSTALLATION
• 6.33. AIR CONDITIONER UNIT
• 6.33.1. REMOVAL
• 6.33.2. INSTALLATION
• 6.34. AIR CONDITIONER CONDENSER
• 6.35. AIR CONDITIONER COMPRESSOR
• 6.35.1. REMOVAL
• 6.35.2. INSTALLATION
• 7. MAINTENANCE STANDARD
• 7.1. ENGINE MOUNT, TRANSMISSION MOUNT
• 7.2. TORQUE CONVERTER
• 7.3. TRANSMISSION
• 7.4. TRANSMISSION CONTROL VALVE
• 7.5. DRIVE SHAFT
• 7.6. DIFFERENTIAL
• 7.7. FINAL DRIVE
• 7.8. AXLE MOUNT
• 7.9. STEERING COLUMN
• 7.10. STEERING VALVE
• 7.11. STEERING CYLINDER MOUNT
• 7.12. SLACK ADJUSTER
• 7.13. BRAKE VALVE
• 7.14. BRAKE
• 7.15. PARKING BRAKE
• 7.16. TORQUE CONVERTER, TRANSMISSION PUMP
• 7.17. STEERING, SWITCH PUMP
• 7.18. HYDRAULIC, PPC PUMP
• 7.19. PPC VALVE
• 7.20. CUTOFF VALVE
• 7.21. MAIN CONTROL VALVE
• 7.22. BOOM CYLINDER
• 7.23. BUCKET CYLINDER
• 7.24. CENTER HINGE PIN
• 7.25. WORK EQUIPMENT LINKAGE
• 7.26. BUCKET
• 7.27. BUCKET POSITIONER AND BOOM KICKOUT