Komatsu WA450-1 Wheel Loader Shop Manual SEBM001700

Description

• Model List:
  • WA450-1 Wheel Loader

• 1. COVER
• 2. CONTENTS
• 3. STRUCTURE AND FUNCTION
• 3.1. GENERAL
• 3.2. RADIATOR
• 3.3. TORQUE CONVERTER OIL COOLER
• 3.4. DAMPER
• 3.5. TORQUE CONVERTER AND TRANSMISSION PIPING
• 3.6. HYDRAULIC CIRCUIT FOR POWER TRAIN
• 3.7. HYDRAULIC CIRCUIT DIAGRAM FOR POWER TRAIN
• 3.8. TORQUE CONVERTER AND PTO
• 3.9. TRANSMISSION
• 3.10. TRANSMISSION CONTROL VALVE
• 3.11. TORQUE CONVERTER OIL FILTER
• 3.12. TRANSMISSION PILOT FILTER
• 3.13. TRANSFER
• 3.14. DRIVE SHAFT
• 3.15. AXLE MOUNT
• 3.16. AXLE AND DIFFERENTIAL
• 3.17. FINAL DRIVE
• 3.18. TIRE AND WHEEL
• 3.19. STEERING PIPING
• 3.20. HYDRAULIC CIRCUIT FOR STEERING
• 3.21. STEERING VALVE
• 3.22. ORBITROLL VALVE
• 3.23. STOP VALVE
• 3.24. STEERING CYLINDER
• 3.25. STEERING COLUMN AND ORBITROLL
• 3.26. CENTER HINGE PIN
• 3.27. BRAKE AND AIR PIPING
• 3.28. BRAKE AND AIR CIRCUIT SYSTEM
• 3.29. PARKING BRAKE SOLENOID VALVE
• 3.30. SPRING CYLINDER
• 3.31. BRAKE CALIPER
• 3.32. HYDRAULIC PIPING
• 3.33. HYDRAULIC CIRCUIT DIAGRAM
• 3.34. HYDRAULIC TANK
• 3.35. PPC VALVE
• 3.36. MAIN CONTROL VALVE
• 3.37. ACCUMULATOR
• 3.38. HYDRAULIC CYLINDER
• 3.39. BUCKET LINKAGE
• 3.40. BUCKET POSITIONER AND BOOM KICKOUT
• 3.41. WORK EQUIPMENT LEVER LINKAGE
• 3.42. ELECTRICAL WIRING DIAGRAM
• 3.43. ELECTRICAL WIRING DIAGRAM CIRCUIT
• 3.44. ENGINE STARTING CIRCUIT
• 3.45. ENGINE STOP CIRCUIT
• 3.46. PREHEATING CIRCUIT
• 3.47. COMBINATION SWITCH
• 3.48. ELECTRICAL TRANSMISSION CONTROL
• 3.49. ELECTRICAL PARKING BRAKE CONTROL
• 3.50. ELECTRONIC VEHICLE MONITORING SYSTEM (EVMS)
• 3.51. SENSORS
• 3.52. PROXIMITY SWITCH
• 4. TESTING AND ADJUSTING
• 4.1. STANDARD VALUE TABLE FOR ENGINE
• 4.2. STANDARD VALUE TABLE FOR CHASSIS
• 4.3. STANDARD VALUE TABLE FOR ELECTRICAL SYSTEM
• 4.4. TOOL LIST FOR TESTING AND ADJUSTING
• 4.5. ADJUSTING VALVE CLEARANCE
• 4.6. MEASURING COMPRESSION PRESSURE
• 4.7. TESTING AND ADJUSTING FUEL INJECTION TIMING
• 4.8. MEASURING BLOWBY PRESSURE
• 4.9. TESTING AND ADJUSTING FAN BELT TENSION
• 4.10. MEASURING EXHAUST GAS COLOR
• 4.11. MEASURING ACCELERATOR PEDAL OPERATING FORCE AND OPERATING ANGLE
• 4.12. MEASURING ENGINE STALL SPEED
• 4.13. MEASURING OIL PRESSURE OF TORQUE CONVERTER AND TRANSMISSION
• 4.14. MEASURING SHIFT LEVER
• 4.15. METHOD FOR OPERATION OF EMERGENCY MANUAL SPOOL
• 4.16. TIRE AND WHEEL
• 4.17. MEASURING STEERING WHEEL PLAY
• 4.18. MEASURING OPERATING FORCE OF STEERING WHEEL
• 4.19. OPERATING TIME OF STEERING WHEEL
• 4.20. STEERING OIL PRESSURE
• 4.21. MEASURING BRAKE PEDAL
• 4.22. MEASURING AIR
• 4.23. BRAKE PERFORMANCE
• 4.24. CHECKING BRAKE OIL PRESSURE
• 4.25. MEASURING WEAR OF BRAKE DISC
• 4.26. AIR BLEEDING FROM BRAKE LINE
• 4.27. PARKING BRAKE PERFORMANCE
• 4.28. CHECKING AND ADJUSTING PARKING BRAKE
• 4.29. MEASURING DUMP AND LIFT CONTROL LEVERS
• 4.30. ADJUSTING DUMP AND LIFT CONTROL LEVERS
• 4.31. MEASURING HYDRAULIC PRESSURE OF WORK EQUIPMENT
• 4.32. MEASURING WORK EQUIPMENT
• 4.33. MEASURING HYDRAULIC DRIFT OF WORK EQUIPMENT
• 4.34. ADJUSTING BUCKET POSITIONER
• 4.35. ADJUSTING BOOM KICKOUT
• 4.36. ADJUSTING MACHINE MONITOR
• 4.37. TROUBLESHOOTING
• 4.37.1. ELECTRICAL CIRCUIT SYSTEM DIAGRAM
• 4.37.2. ELECTRICAL WIRING DIAGRAM
• 4.37.3. CONNECTOR TERMINAL NUMBERS
• 4.37.4. PRECAUTION WHEN HANDLING CONNECTOR
• 4.37.5. CHECKS BEFORE TROUBLESHOOTING
• 4.37.6. JUDGEMENT ON POWER TRAIN
• 4.37.7. METHOD OF USING YESNO TROUBLESHOOTING FLOW CHART
• 4.37.8. METHOD OF READING TROUBLESHOOTING TABLE
• 4.37.9. TROUBLESHOOTING CHART FOR ELECTRIC SYSTEM
• 4.37.10. TROUBLESHOOTING CHART FOR ELECTRONIC VEHICLE MONITORING SYSTEM
• 4.37.11. TROUBLESHOOTING TABLE FOR HYDRAULIC AND MECHANICAL SYSTEM
• 5. DISASSEMBLY AND ASSEMBLY
• 5.1. STARTING MOTOR
• 5.1.1. REMOVAL AND INSTALLATION
• 5.2. ALTERNATOR
• 5.2.1. REMOVAL AND INSTALLATION
• 5.3. INJECTION PUMP
• 5.3.1. REMOVAL AND INSTALLATION
• 5.4. WATER PUMP
• 5.4.1. REMOVAL AND INSTALLATION
• 5.5. NOZZLE HOLDER
• 5.5.1. REMOVAL
• 5.5.2. INSTALLATION
• 5.6. TURBOCHARGER
• 5.6.1. REMOVAL AND INSTALLATION
• 5.6.2. REMOVAL AND INSTALLATION
• 5.6.3. REMOVAL AND INSTALLATION
• 5.6.4. DISASSEMBLY
• 5.6.5. ASSEMBLY
• 5.7. TORQUE CONVERTER CHARGING PUMP
• 5.7.1. REMOVAL
• 5.7.2. INSTALLATION
• 5.8. TORQUE CONVERTER AND TRANSMISSION
• 5.8.1. REMOVAL
• 5.8.2. INSTALLATION
• 5.9. TORQUE CONVERTER
• 5.10. TRANSMISSION CONTROL VALVE
• 5.10.1. REMOVAL
• 5.10.2. INSTALLATION
• 5.10.3. DISASSEMBLY AND ASSEMBLY
• 5.11. FRONT DIFFERENTIAL
• 5.11.1. REMOVAL
• 5.11.2. INSTALLATION
• 5.12. REAR DIFFERENTIAL
• 5.13. STEERING DEMAND VALVE
• 5.14. STEERING CYLINDER
• 5.14.1. REMOVAL
• 5.14.2. INSTALLATION
• 5.14.3. DISASSEMBLY
• 5.14.4. ASSEMBLY
• 5.15. CENTER HINGE PIN
• 5.16. SPRING CYLINDER
• 5.17. PARKING BRAKE PAD
• 5.17.1. REMOVAL AND INSTALLATION
• 5.18. HYDRAULIC FILTER
• 5.18.1. REMOVAL AND INSTALLATION
• 5.19. SWITCH, PPC PUMP
• 5.19.1. DISASSEMBLY AND ASSEMBLY
• 5.20. MAIN CONTROL VALVE
• 5.21. LIFT AND DUMP CYLINDERS
• 5.21.1. REMOVAL AND INSTALLATION
• 6. MAINTENANCE STANDARD
• 6.1. ENGINE MOUNT
• 6.2. TRANSMISSION MOUNT
• 6.3. TORQUE CONVERTER CHARGING PUMP
• 6.4. DAMPER
• 6.5. TORQUE CONVERTER AND PTO
• 6.6. TORQFLOW TRANSMISSION
• 6.6.1. TRANSMISSION
• 6.6.2. TRANSMISSION CONTROL VALVE
• 6.6.3. SOLENOID VALVE
• 6.7. STEERING COLUMN AND ORBITROLL
• 6.8. STEERING VALVE
• 6.9. STEERING PUMP
• 6.10. STEERING CYLINDER MOUNT
• 6.11. STEERING CYLINDER
• 6.12. CENTER HINGE PIN
• 6.13. SPRING CYLINDER
• 6.14. MAIN CONTROL VALVE
• 6.15. SWITCH AND PPC PUMP
• 6.16. BUCKET POSITIONER AND BOOM KICKOUT
• 6.17. BUCKET
• 7. OTHERS
• 7.2. AIR CONDITIONER
• 7.2.1. PIPING
• 7.2.2. AIR CONDITIONER UNIT
• 7.2.3. CONDENSER
• 7.2.4. COMPRESSOR
• 7.2.5. DRY RESERVOIR
• 7.2.6. AIR CONDITIONER WIRING DIAGRAM
• 7.2.7. AIR CONDITIONER ELECTRIC CIRCUIT
• 7.3. LOG LOADER
• 7.3.1. HYDRAULIC PIPING
• 7.3.2. HYDRAULIC CIRCUIT DIAGRAM
• 7.3.3. WORK EQUIPMENT LEVER LINKAGE
• 7.3.4. MAIN CONTROL VALVE
• 7.3.5. ARM CYLINDER
• 7.3.6. WORK EQUIPMENT
• 7.3.7. ELECTRICAL CIRCUIT DIAGRAM FOR BRAKE COOLING
• 7.4. DISASSEMBLY AND ASSEMBLY
• 7.4.2. AIR CONDITIONER UNIT
• 7.4.3. AIR CONDITIONER CONDENSER
• 7.4.4. DRY RESERVOIR
• 7.4.5. COMPRESSOR FOR AIR CONDITIONER
• 7.5. MAINTENANCE STANDARD
• 7.5.1. MAIN CONTROL VALVE FOR LOG LOADER
• 7.5.2. WORK EQUIPMENT FOR LOG LOADER
• 7.5.3. ARM CYLINDER FOR LOG LOADER