Komatsu WA450-1 Wheel Loader Shop Manual SEBM04210108

Description

• Model List:
  • WA450-1 Wheel Loader

• 1. COVER
• 2. CONTENTS
• 3. GENERAL
• 3.1. WEIGHT TABLE
• 3.2. TABLE OF OIL AND COOLANT QUANTITIES
• 4. ENGINE
• 4.1. STRUCTURE AND FUNCTION
• 4.1.1. ENGINE MOUNT
• 4.1.2. RADIATOR
• 4.1.3. FUEL TANK AND PIPING
• 4.1.4. ENGINE CONTROL
• 4.2. TESTING AND ADJUSTING
• 4.2.1. STANDARD VALUE TABLE
• 4.2.2. TOOL LIST FOR TESTING AND ADJUSTING
• 4.2.3. ADJUSTING VALVE CLEARANCE
• 4.2.4. MEASURING COMPRESSION PRESSURE
• 4.2.5. TESTING AND ADJUSTING FUEL INJECTION TIMING
• 4.2.6. MEASURING BLOWBY PRESSURE
• 4.2.7. TESTING AND ADJUSTING FAN BELT TENSION
• 4.2.8. MEASURING EXHAUST GAS COLOR
• 4.2.9. MEASURING ACCELERATOR PEDAL OPERATING FORCE AND OPERATION ANGLE
• 4.2.10. TESTING AND ADJUSTING FUEL CUT SOLENOID
• 4.3. DISASSEMBLY AND ASSEMBLY
• 4.3.1. STARTING MOTOR ASSEMBLY
• 4.3.2. ALTERNATOR ASSEMBLY
• 4.3.3. FUEL INJECTION PUMP ASSEMBLY
• 4.3.4. WATER PUMP ASSEMBLY
• 4.3.5. NOZZLE HOLDER ASSEMBLY
• 4.3.6. TURBOCHARGER ASSEMBLY
• 4.3.7. CYLINDER HEAD ASSEMBLY
• 4.3.8. RADIATOR ASSEMBLY
• 4.3.9. OIL COOLER ASSEMBLY
• 4.3.10. ENGINE ASSEMBLY
• 4.3.11. FUEL TANK ASSEMBLY
• 4.4. MAINTENANCE STANDARD
• 4.4.1. ENGINE MOUNT
• 5. POWER TRAIN
• 5.1. STRUCTURE AND FUNCTION
• 5.1.1. GENERAL
• 5.1.2. TRANSMISSION MOUNT
• 5.1.3. DAMPER
• 5.1.4. TORQUE CONVERTER AND TRANSMISSION PIPING
• 5.1.5. TORQUE CONVERTER CHARGING PUMP
• 5.1.6. TORQUE CONVERTER
• 5.1.7. TORQUE CONVERTER OIL FILTER
• 5.1.8. TORQUE CONVERTER OIL COOLER
• 5.1.9. TORQUE CONVERTER RELIEF VALVE
• 5.1.10. TRANSMISSION
• 5.1.11. TRANSMISSION CONTROL VALVE
• 5.1.12. TRANSMISSION PILOT FILTER
• 5.1.13. TRANSFER
• 5.1.14. DRIVE SHAFT
• 5.1.15. AXLE MOUNT
• 5.1.16. AXLE AND DIFFERENTIAL
• 5.1.17. FINAL DRIVE
• 5.1.18. TIRE AND WHEEL
• 5.2. TESTING AND ADJUSTING
• 5.2.1. STANDARD VALUE TABLE
• 5.2.2. TOOL LIST FOR TESTING AND ADJUSTING
• 5.2.3. MEASURING ENGINE STALL SPEED
• 5.2.4. MEASURING OIL PRESSURE OF TORQUE CONVERTER AND TRANSMISSION
• 5.2.5. MEASURING SHIFT LEVER
• 5.2.6. METHOD FOR OPERATION OF EMERGENCY MANUAL SPOOL
• 5.2.7. TIRE AND WHEEL
• 5.2.8. TROUBLESHOOTING
• 5.3. DISASSEMBLY AND ASSEMBLY
• 5.3.1. DAMPER
• 5.3.2. TORQUE CONVERTER CHARGING PUMP
• 5.3.3. TORQUE CONVERTER AND TRANSMISSION
• 5.3.4. TORQUE CONVERTER ASSEMBLY
• 5.3.5. TRANSMISSION ASSEMBLY
• 5.3.6. TRANSFER ASSEMBLY
• 5.3.7. TRANSMISSION CONTROL VALVE
• 5.3.8. FRONT DIFFERENTIAL
• 5.3.9. REAR DIFFERENTIAL
• 5.4. MAINTENANCE STANDARD
• 5.4.1. TRANSMISSION MOUNT
• 5.4.2. TORQUE CONVERTER CHARGING PUMP
• 5.4.3. DAMPER
• 5.4.4. TORQUE CONVERTER
• 5.4.5. TORQFLOW TRANSMISSION
• 6. STEERING SYSTEM
• 6.1. STRUCTURE AND FUNCTION
• 6.1.1. GENERAL
• 6.1.2. HYDRAULIC CIRCUIT FOR STEERING
• 6.1.3. STEERING VALVE
• 6.1.4. TWOWAY RESTRICTOR VALVE
• 6.1.5. ORBITROLL VALVE
• 6.1.6. STOP VALVE
• 6.1.7. STEERING PUMP
• 6.1.8. STEERING CYLINDER
• 6.1.9. STEERING COLUMN AND GEAR BOX
• 6.1.10. STEERING LINKAGE
• 6.1.11. STEERING COLUMN AND ORBITROLL
• 6.1.12. CENTER HINGE PIN
• 6.2. TESTING AND ADJUSTING
• 6.2.1. STANDARD VALUE TABLE
• 6.2.2. TOOL LIST FOR TESTING AND ADJUSTING
• 6.2.3. MEASURING STEERING WHEEL PLAY
• 6.2.4. MEASURING OPERATING FORCE OF STEERING WHEEL
• 6.2.5. OPERATING TIME OF STEERING WHEEL
• 6.2.6. TESTING STEERING LINKAGE
• 6.2.7. ADJUSTING STEERING LINKAGE
• 6.2.8. STEERING OIL PRESSURE
• 6.2.9. TROUBLESHOOTING
• 6.3. DISASSEMBLY AND ASSEMBLY
• 6.3.1. STEERING GEAR
• 6.3.2. STEERING VALVE
• 6.3.3. STEERING DEMAND VALVE
• 6.3.4. STEERING PUMP
• 6.3.5. STEERING CYLINDER
• 6.3.6. CENTER HINGE PIN
• 6.4. MAINTENANCE STANDARD
• 6.4.1. STEERING LINKAGE
• 6.4.2. STEERING COLUMN AND GEAR BOX
• 6.4.3. STEERING COLUMN AND ORBITROLL
• 6.4.4. STEERING VALVE
• 6.4.5. STEERING PUMP
• 6.4.6. STEERING CYLINDER MOUNT
• 6.4.7. STEERING CYLINDER
• 6.4.8. CENTER HINGE PIN
• 7. BRAKE AND AIR SYSTEM
• 7.1. STRUCTURE AND FUNCTION
• 7.1.1. GENERAL
• 7.1.2. BRAKE AND AIR PIPING
• 7.1.3. BRAKE AND AIR CIRCUIT SYSTEM
• 7.1.4. AIR TANK
• 7.1.5. SAFETY VALVE
• 7.1.6. BRAKE VALVE
• 7.1.7. PARKING BRAKE SOLENOID VALVE
• 7.1.8. SPRING CYLINDER
• 7.1.9. BRAKE CALIPER
• 7.2. TESTING AND ADJUSTING
• 7.2.1. STANDARD VALUE TABLE
• 7.2.2. TOOL LIST FOR TESTING AND ADJUSTING
• 7.2.3. MEASURING BRAKE PEDAL
• 7.2.4. MEASURING AIR
• 7.2.5. BRAKE PERFORMANCE
• 7.2.6. CHECKING BRAKE OIL PRESSURE
• 7.2.7. MEASURING WEAR OF BRAKE DISC
• 7.2.8. AIR BLEEDING FROM BRAKE LINE
• 7.2.9. PARKING BRAKE PERFORMANCE
• 7.2.10. CHECKING AND ADJUSTING PARKING BRAKE
• 7.2.11. TROUBLESHOOTING
• 7.3. DISASSEMBLY AND ASSEMBLY
• 7.3.1. AIR GOVERNOR
• 7.3.2. BRAKE VALVE
• 7.3.3. BRAKE CHAMBER
• 7.3.4. SLACK ADJUSTER
• 7.3.5. BRAKE ASSEMBLY
• 7.3.6. SPRING CYLINDER
• 7.3.7. PARKING BRAKE
• 7.3.8. PARKING BRAKE PAD
• 7.4. MAINTENANCE STANDARD
• 7.4.1. SPRING CYLINDER
• 8. WORK EQUIPMENT SYSTEM
• 8.1. STRUCTURE AND FUNCTION
• 8.1.1. GENERAL
• 8.1.2. HYDRAULIC PIPING
• 8.1.3. HYDRAULIC CIRCUIT SYSTEM
• 8.1.4. HYDRAULIC CIRCUIT DIAGRAM
• 8.1.5. HYDRAULIC TANK
• 8.1.6. HYDRAULIC PUMPS
• 8.1.7. POC VALVE
• 8.1.8. PPC VALVE
• 8.1.9. MAIN CONTROL VALVE
• 8.1.10. ACCUMULATOR
• 8.1.11. HYDRAULIC CYLINDER
• 8.1.12. BUCKET LINKAGE
• 8.1.13. BUCKET POSITIONER AND BOOM KICKOUT
• 8.1.14. WORK EQUIPMENT LEVER LINKAGE
• 8.2. TESTING AND ADJUSTING
• 8.2.1. STANDARD VALUE TABLE
• 8.2.2. TOOL LIST FOR TESTING AND ADJUSTING
• 8.2.3. MEASURING DUMP AND LIFT CONTROL LEVERS
• 8.2.4. ADJUSTING DUMP AND LIFT CONTROL LEVERS
• 8.2.5. MEASURING HYDRAULIC PRESSURE OF WORK EQUIPMENT
• 8.2.6. MEASURING WORK EQUIPMENT
• 8.2.7. MEASURING HYDRAULIC DRIFT OF WORK EQUIPMENT
• 8.2.8. ADJUSTING BUCKET POSITIONER
• 8.2.9. ADJUSTING BOOM KICKOUT
• 8.2.10. TROUBLESHOOTING
• 8.3. DISASSEMBLY AND ASSEMBLY
• 8.3.1. HYDRAULIC TANK
• 8.3.2. HYDRAULIC PUMP
• 8.3.3. HYDRAULIC FILTER
• 8.3.4. SWITCH, POC PUMP
• 8.3.5. SWITCH, PPC PUMP
• 8.3.6. POC VALVE
• 8.3.7. PPC VALVE
• 8.3.8. MAIN CONTROL VALVE
• 8.3.9. LIFT AND DUMP CYLINDERS
• 8.3.10. WORK EQUIPMENT
• 8.3.11. COUNTERWEIGHT
• 8.4. MAINTENANCE STANDARD
• 8.4.1. MAIN CONTROL VALVE
• 8.4.2. SWITCH AND POC (PPC) PUMP
• 8.4.3. HYDRAULIC PUMP
• 8.4.4. POC VALVE
• 8.4.5. POC VALVE (RELIEF VALVE)
• 8.4.6. PPC VALVE
• 8.4.7. DUMP CYLINDER
• 8.4.8. LIFT CYLINDER
• 8.4.9. BUCKET LINKAGE
• 8.4.10. BUCKET POSITIONER AND BOOM KICKOUT
• 8.4.11. BUCKET
• 9. ELECTRIC AND ELECTRONIC SYSTEM
• 9.1. STRUCTURE AND FUNCTION
• 9.1.1. ELECTRICAL WIRING DIAGRAM
• 9.1.2. ELECTRICAL WIRING DIAGRAM CIRCUIT
• 9.1.3. ENGINE STARTING CIRCUIT
• 9.1.4. ENGINE STOP CIRCUIT
• 9.1.5. PREHEATING CIRCUIT
• 9.1.6. COMBINATION SWITCH
• 9.1.7. ELECTRICAL TRANSMISSION CONTROL
• 9.1.8. ELECTRICAL PARKING BRAKE CONTROL
• 9.1.9. ELECTRONIC VEHICLE MONITORING SYSTEM (EVMS)
• 9.1.10. SENSOR
• 9.2. TESTING AND ADJUSTING
• 9.2.1. STANDARD VALUE TABLE FOR ELECTRICAL SYSTEM
• 9.2.2. ADJUSTING MACHINE MONITOR (SPEEDOMETER MODULE)
• 9.2.3. TROUBLESHOOTING
• 9.3. DISASSEMBLY AND ASSEMBLY
• 9.3.1. MACHINE MONITOR
• 10. OTHERS
• 10.1. STRUCTURE AND FUNCTION
• 10.1.2. AIR CONDITIONER (IF EQUIPPED)
• 10.2. DISASSEMBLY AND ASSEMBLY
• 10.2.2. AIR CONDITIONER UNIT (OPTION)
• 10.2.3. CONDENSER FOR AIR CONDITIONER (OPTION)
• 10.2.4. DRY RESERVOIR (OPTION)
• 10.2.5. COMPRESSOR FOR AIR CONDITIONER (OPTION)
• 10.3. GEAR PUMP
• 10.3.1. GENERAL
• 10.3.2. SA SERIES