Komatsu WA450-3 Wheel Loader Shop Manual SEBM015501

Description

• Model List:
  • WA450-3 Wheel Loader

• 1. MAIN MENU
• 2. CONTENTS
• 3. GENERAL
• 3.1. GENERAL ASSEMBLY DRAWING
• 3.2. SPECIFICATIONS
• 3.3. WEIGHT TABLE
• 3.4. LIST OF LUBRICANT AND WATER
• 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. PROPORTIONAL SOLENOID VALVE
• 4.11. ELECTRONIC CONTROL MODULATION VALVE
• 4.12. PILOT OIL FILTER
• 4.13. DRIVE SHAFT
• 4.14. AXLE
• 4.15. DIFFERENTIAL
• 4.16. FINAL DRIVE
• 4.17. AXLE MOUNT, CENTER HINGE PIN
• 4.18. STEERING PIPING
• 4.19. STEERING COLUMN
• 4.20. STEERING VALVE
• 4.21. ORBITROLL VALVE
• 4.22. STOP VALVE
• 4.23. EMERGENCY STEERING PUMP
• 4.24. DIVERTER VALVE
• 4.25. BRAKE PIPING
• 4.26. BRAKE CIRCUIT DIAGRAM
• 4.27. BRAKE VALVE
• 4.28. CHARGE VALVE
• 4.29. ACCUMULATOR (FOR BRAKE)
• 4.30. SLACK ADJUSTER
• 4.31. BRAKE
• 4.32. PARKING BRAKE CONTROL
• 4.33. PARKING BRAKE
• 4.34. PARKING BRAKE SOLENOID VALVE
• 4.35. PARKING BRAKE VALVE
• 4.36. PARKING BRAKE EMERGENCY RELEASE SOLENOID VALVE
• 4.37. HYDRAULIC PIPING
• 4.38. WORK EQUIPMENT HYDRAULIC SYSTEM DIAGRAM
• 4.39. WORK EQUIPMENT HYDRAULIC CIRCUIT DIAGRAM
• 4.40. WORK EQUIPMENT LEVER LINKAGE
• 4.41. HYDRAULIC TANK
• 4.42. PPC VALVE
• 4.43. PPC RELIEF VALVE
• 4.44. ACCUMULATOR (FOR PPC VALVE)
• 4.45. CUTOFF VALVE
• 4.46. MAIN CONTROL VALVE
• 4.47. WORK EQUIPMENT LINKAGE
• 4.48. BUCKET
• 4.49. BUCKET POSITIONER AND BOOM KICKOUT
• 4.50. ROPS CAB
• 4.51. HEATER AND DEFROSTER
• 4.52. AIR CONDITIONER (OPTION)
• 4.53. ELECTRIC CIRCUIT DIAGRAM
• 4.54. MACHINE MONITOR SYSTEM
• 4.55. MAIN MONITOR
• 4.56. MAINTENANCE MONITOR
• 4.57. TRANSMISSION AUTOSHIFT CONTROL SYSTEM
• 4.58. SENSORS
• 4.59. ENGINE STARTING CIRCUIT
• 4.60. ENGINE STOP CIRCUIT
• 4.61. PREHEATING CIRCUIT
• 4.62. ELECTRIC TRANSMISSION CONTROL
• 4.63. KICKDOWN, HOLD SWITCH
• 4.64. KICKDOWN ELECTRIC CIRCUIT DIAGRAM
• 4.65. TRANSMISSION CUTOFF SWITCH
• 4.66. TRANSMISSION CUTOFF FUNCTION
• 4.67. ELECTRIC PARKING BRAKE CONTROL
• 5. TESTING AND ADJUSTING
• 5.1. STANDARD VALUE TABLE
• 5.1.1. STANDARD VALUE TABLE FOR ENGINE RELATED PARTS
• 5.1.2. STANDARD VALUE TABLE FOR CHASSIS RELATED PARTS
• 5.1.3. STANDARD VALUE TABLE FOR ELECTRICAL PARTS
• 5.2. TESTING AND ADJUSTING
• 5.2.1. TOOLS FOR TESTING, ADJUSTING, AND TROUBLESHOOTING
• 5.2.2. MEASURING ENGINE SPEED
• 5.2.3. MEASURING INTAKE AIR PRESSURE
• 5.2.4. ADJUSTING VALVE CLEARANCE
• 5.2.5. MEASURING EXHAUST GAS COLOR
• 5.2.6. MEASURING EXHAUST GAS TEMPERATURE
• 5.2.7. MEASURING BLOWBY PRESSURE
• 5.2.8. MEASURING COMPRESSION PRESSURE
• 5.2.9. MEASURING ENGINE OIL PRESSURE
• 5.2.10. TESTING AND ADJUSTING FUEL INJECTION TIMING
• 5.2.11. ADJUSTING ENGINE STOP MOTOR CABLE
• 5.2.12. TESTING AND ADJUSTING FAN BELT TENSION
• 5.2.13. TESTING ACCELERATOR PEDAL
• 5.2.14. TESTING SPEED CONTROL LEVER
• 5.2.15. MEASURING STALL SPEED
• 5.2.16. MEASURING TORQUE CONVERTER, TRANSMISSION, AND PARKING BRAKE OIL PRESSURE
• 5.2.17. METHOD OF OPERATING EMERGENCY MANUAL SPOOL
• 5.2.18. TESTING AND ADJUSTING STEERING WHEEL
• 5.2.19. TESTING AND ADJUSTING STEERING CONTROL
• 5.2.20. TESTING AND ADJUSTING STEERING OIL PRESSURE
• 5.2.21. TESTING BRAKE PEDAL
• 5.2.22. TESTING BRAKE OIL PRESSURE
• 5.2.23. MEASURING BRAKE PERFORMANCE
• 5.2.24. MEASURING BRAKE DISC WEAR
• 5.2.25. BLEEDING AIR FROM BRAKE SYSTEM
• 5.2.26. TESTING AND ADJUSTING ACCUMULATOR CHARGE PRESSURE
• 5.2.27. MEASURING PARKING BRAKE PERFORMANCE
• 5.2.28. MANUAL RELEASE OF PARKING BRAKE
• 5.2.29. TESTING WEAR OF PARKING BRAKE DISC
• 5.2.30. TESTING WORK EQUIPMENT CONTROL LEVER
• 5.2.31. MEASURING WORK EQUIPMENT HYDRAULIC PRESSURE
• 5.2.32. TESTING WORK EQUIPMENT
• 5.2.33. TESTING AND ADJUSTING BUCKET POSITIONER
• 5.2.34. TESTING AND ADJUSTING BOOM KICKOUT
• 5.2.35. ADJUSTING MAIN MONITOR
• 5.2.36. TESTING FUEL LEVEL SENSOR
• 5.3. TROUBLESHOOTING
• 5.3.1. POINTS TO REMEMBER WHEN TROUBLESHOOTING
• 5.3.2. SEQUENCE OF EVENTS IN TROUBLESHOOTING
• 5.3.3. POINTS TO REMEMBER WHEN CARRYING OUT MAINTENANCE
• 5.3.4. CHECKS BEFORE TROUBLESHOOTING
• 5.3.5. METHOD OF USING TROUBLESHOOTING CHARTS
• 5.3.6. CONNECTOR TYPES AND MOUNTING LOCATIONS
• 5.3.7. CONNECTION TABLE FOR CONNECTOR PIN NUMBERS
• 5.3.8. TROUBLESHOOTING OF ENGINE SYSTEM (S MODE)
• 5.3.9. TROUBLESHOOTING OF MAIN MONITOR SYSTEM (M MODE)
• 5.3.10. TROUBLESHOOTING OF MAINTENANCE MONITOR SYSTEM (K MODE)
• 5.3.11. TROUBLESHOOTING OF ELECTRICAL SYSTEM (E MODE)
• 5.3.12. TROUBLESHOOTING OF TRANSMISSION CONTROLLER SYSTEM (A MODE)
• 5.3.13. TROUBLESHOOTING OF HYDRAULIC AND MECHANICAL SYSTEM (T MODE)
• 6. DISASSEMBLY AND ASSEMBLY
• 6.1. METHOD OF USING MANUAL
• 6.2. PRECAUTIONS WHEN CARRYING OUT OPERATION
• 6.3. SPECIAL TOOL LIST
• 6.4. ENGINE OIL COOLER
• 6.4.1. REMOVAL
• 6.4.2. INSTALLATION
• 6.5. FUEL INJECTION PUMP
• 6.6. TORQUE CONVERTER, TRANSMISSION
• 6.6.1. REMOVAL
• 6.6.2. INSTALLATION
• 6.7. TORQUE CONVERTER
• 6.8. TRANSMISSION CLUTCH PACK
• 6.9. TRANSMISSION CONTROL VALVE
• 6.9.1. REMOVAL
• 6.9.2. INSTALLATION
• 6.9.3. DISASSEMBLY
• 6.9.4. ASSEMBLY
• 6.10. TRANSMISSION ACCUMULATOR VALVE
• 6.11. FRONT DIFFERENTIAL
• 6.11.1. REMOVAL
• 6.11.2. INSTALLATION
• 6.12. REAR DIFFERENTIAL
• 6.13. CENTER HINGE PIN
• 6.13.1. REMOVAL
• 6.13.2. INSTALLATION
• 6.14. STEERING VALVE (ORBIT ROLL)
• 6.14.1. REMOVAL
• 6.14.2. INSTALLATION
• 6.15. STEERING VALVE
• 6.15.1. DISASSEMBLY
• 6.15.2. ASSEMBLY
• 6.15.3. REMOVAL
• 6.15.4. INSTALLATION
• 6.16. STEERING DEMAND VALVE
• 6.16.1. DISASSEMBLY
• 6.16.2. ASSEMBLY
• 6.17. STEERING, SWITCH PUMP
• 6.17.1. REMOVAL
• 6.17.2. INSTALLATION
• 6.18. STEERING CYLINDER
• 6.19. RIGHT BRAKE VALVE (TANDEM)
• 6.19.1. DISASSEMBLY
• 6.19.2. ASSEMBLY
• 6.20. LEFT BRAKE VALVE (SINGLE)
• 6.20.1. DISASSEMBLY
• 6.20.2. ASSEMBLY
• 6.21. SLACK ADJUSTER
• 6.22. PARKING BRAKE DISC
• 6.22.1. REMOVAL
• 6.22.2. INSTALLATION
• 6.23. ACCUMULATOR CHARGE VALVE
• 6.24. WORK EQUIPMENT, PPC PUMP
• 6.25. MAIN CONTROL VALVE
• 6.26. HYDRAULIC CYLINDER
• 6.26.1. DISASSEMBLY
• 6.26.2. ASSEMBLY
• 6.27. WORK EQUIPMENT
• 6.28. MAINTENANCE MONITOR
• 6.28.1. REMOVAL
• 6.28.2. INSTALLATION
• 6.29. AIR CONDITIONER UNIT
• 6.29.1. REMOVAL
• 6.29.2. INSTALLATION
• 6.30. AIR CONDITIONER CONDENSER
• 6.31. AIR CONDITIONER COMPRESSOR
• 6.31.1. REMOVAL
• 6.31.2. 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. LIFT CYLINDER
• 7.23. DUMP CYLINDER
• 7.24. CENTER HINGE PIN
• 7.25. WORK EQUIPMENT LINKAGE
• 7.26. BUCKET
• 7.27. BUCKET POSITIONER AND BOOM KICKOUT
• 8. OTHERS
• 8.1. ELECTRIC CIRCUIT DIAGRAM (1/4)
• 8.2. ELECTRIC CIRCUIT DIAGRAM (2/4)
• 8.3. ELECTRIC CIRCUIT DIAGRAM (3/4)
• 8.4. ELECTRIC CIRCUIT DIAGRAM (4/4)