Komatsu WA470-1 Wheel Loader Shop Manual SEBMU4210106

Description

• Model List:
  • WA470-1 Wheel Loader

• 1. COVER
• 2. CONTENTS
• 3. ENGINE
• 3.1. TESTING AND ADJUSTING
• 3.1.1. STANDARD VALUE TABLE
• 3.1.2. TOOL LIST FOR TESTING AND ADJUSTING
• 3.1.3. ADJUSTING VALVE CLEARANCE
• 3.1.4. MEASURING COMPRESSION PRESSURE
• 3.1.5. TESTING AND ADJUSTING FUEL INJECTION TIMING
• 3.1.6. MEASURING BLOWBY PRESSURE
• 3.1.7. TESTING AND ADJUSTING FAN BELT TENSION
• 3.1.8. MEASURING EXHAUST GAS COLOR
• 3.1.9. MEASURING ACCELERATOR PEDAL OPERATING FORCE AND OPERATING ANGLE
• 3.1.10. TESTING AND ADJUSTING FUEL CUT SOLENOID
• 3.2. DISASSEMBLY AND ASSEMBLY
• 3.2.1. STARTING MOTOR ASSEMBLY
• 3.2.2. ALTERNATOR ASSEMBLY
• 3.2.3. FUEL INJECTION PUMP ASSEMBLY
• 3.2.4. WATER PUMP ASSEMBLY
• 3.2.5. NOZZLE HOLDER ASSEMBLY
• 3.2.6. TURBOCHARGER ASSEMBLY
• 3.2.7. CYLINDER HEAD ASSEMBLY
• 3.2.8. RADIATOR ASSEMBLY
• 3.2.9. OIL COOLER ASSEMBLY
• 3.3. MAINTENANCE STANDARD
• 3.3.1. ENGINE MOUNT
• 4. POWER TRAIN
• 4.1. STRUCTURE AND FUNCTION
• 4.1.1. GENERAL
• 4.1.2. DAMPER
• 4.1.3. TORQUE CONVERTER AND TRANSMISSION PIPING
• 4.1.4. TORQUE CONVERTER CHARGING PUMP
• 4.1.5. TORQUE CONVERTER
• 4.1.6. TORQUE CONVERTER OIL FILTER
• 4.1.7. TORQUE CONVERTER OIL COOLER
• 4.1.8. TORQUE CONVERTER RELIEF VALVE
• 4.1.9. TRANSMISSION
• 4.1.10. TRANSMISSION CONTROL VALVE
• 4.1.11. TRANSMISSION PILOT FILTER
• 4.1.12. TRANSFER
• 4.1.13. DRIVE SHAFT
• 4.1.14. AXLE MOUNT
• 4.1.15. AXLE AND DIFFERENTIAL
• 4.1.16. FINAL DRIVE
• 4.1.17. TIRE AND WHEEL
• 4.2. TESTING AND ADJUSTING
• 4.2.1. STANDARD VALUE TABLE
• 4.2.2. TOOL LIST FOR TESTING AND ADJUSTING
• 4.2.3. MEASURING ENGINE STALL SPEED
• 4.2.4. MEASURING OIL PRESSURE OF TORQUE CONVERTER AND TRANSMISSION
• 4.2.5. MEASURING SHIFT LEVER
• 4.2.6. METHOD FOR OPERATION OF EMERGENCY MANUAL SPOOL
• 4.2.7. TIRE AND WHEEL
• 4.2.8. TROUBLESHOOTING
• 4.3. DISASSEMBLY AND ASSEMBLY
• 4.3.1. DAMPER
• 4.3.2. TORQUE CONVERTER CHARGING PUMP
• 4.3.3. TORQUE CONVERTER AND TRANSMISSION
• 4.3.4. TORQUE CONVERTER ASSEMBLY
• 4.3.5. TRANSMISSION ASSEMBLY
• 4.3.6. TRANSFER ASSEMBLY
• 4.3.7. TRANSMISSION CONTROL VALVE
• 4.3.8. FRONT DIFFERENTIAL
• 4.3.9. REAR DIFFERENTIAL
• 4.4. MAINTENANCE STANDARD
• 4.4.1. TRANSMISSION MOUNT
• 4.4.2. TORQUE CONVERTER CHARGING PUMP
• 4.4.3. DAMPER
• 4.4.4. TORQUE CONVERTER
• 4.4.5. TORQFLOW TRANSMISSION
• 5. STEERING SYSTEM
• 5.1. STRUCTURE AND FUNCTION
• 5.1.1. GENERAL
• 5.1.2. HYDRAULIC CIRCUIT FOR STEERING
• 5.1.3. STEERING VALVE (SERIAL NO.1000120000)
• 5.1.4. STEERING VALVE (SERIAL NO.20001 AND UP)
• 5.1.5. TWOWAY RESTRICTOR VALVE
• 5.1.6. ORBITROLL VALVE
• 5.1.7. STOP VALVE
• 5.1.8. STEERING PUMP
• 5.1.9. STEERING CYLINDER
• 5.1.10. STEERING COLUMN AND GEAR BOX
• 5.1.11. STEERING LINKAGE
• 5.1.12. STEERING COLUMN AND ORBITROLL
• 5.1.13. CENTER HINGE PIN
• 5.2. TESTING AND ADJUSTING
• 5.2.1. STANDARD VALUE TABLE
• 5.2.2. TOOL LIST FOR TESTING AND ADJUSTING
• 5.2.3. MEASURING STEERING WHEEL PLAY
• 5.2.4. MEASURING OPERATING FORCE OF STEERING WHEEL
• 5.2.5. OPERATING TIME OF STEERING WHEEL
• 5.2.6. TESTING STEERING LINKAGE
• 5.2.7. ADJUSTING STEERING LINKAGE
• 5.2.8. STEERING OIL PRESSURE
• 5.2.9. TROUBLESHOOTING
• 5.3. DISASSEMBLY AND ASSEMBLY
• 5.3.1. STEERING GEAR
• 5.3.2. STEERING VALVE
• 5.3.3. STEERING DEMAND VALVE
• 5.3.4. STEERING PUMP
• 5.3.5. STEERING CYLINDER
• 5.3.6. CENTER HINGE PIN
• 5.4. MAINTENANCE STANDARD
• 5.4.1. STEERING LINKAGE
• 5.4.2. STEERING COLUMN AND GEAR BOX
• 5.4.3. STEERING COLUMN AND ORBITROLL
• 5.4.4. STEERING VALVE
• 5.4.5. STEERING PUMP
• 5.4.6. STEERING CYLINDER MOUNT
• 5.4.7. STEERING CYLINDER
• 5.4.8. CENTER HINGE PIN
• 6. BRAKE AND AIR SYSTEM
• 6.1. STRUCTURE AND FUNCTION
• 6.1.1. GENERAL
• 6.1.2. BRAKE AND AIR PIPING
• 6.1.3. BRAKE AND AIR CIRCUIT SYSTEM
• 6.1.4. AIR TANK
• 6.1.5. SAFETY VALVE
• 6.1.6. BRAKE VALVE
• 6.1.7. PARKING BRAKE SOLENOID VALVE
• 6.1.8. SPRING CYLINDER
• 6.1.9. BRAKE CALIPER
• 6.2. TESTING AND ADJUSTING
• 6.2.1. STANDARD VALUE TABLE
• 6.2.2. TOOL LIST FOR TESTING AND ADJUSTING
• 6.2.3. MEASURING BRAKE PEDAL
• 6.2.4. MEASURING AIR
• 6.2.5. BRAKE PERFORMANCE
• 6.2.6. CHECKING BRAKE OIL PRESSURE
• 6.2.7. MEASURING WEAR OF BRAKE DISC
• 6.2.8. AIR BLEEDING FROM BRAKE LINE
• 6.2.9. PARKING BRAKE PERFORMANCE
• 6.2.10. CHECKING AND ADJUSTING PARKING BRAKE
• 6.2.11. TROUBLESHOOTING
• 6.3. DISASSEMBLY AND ASSEMBLY
• 6.3.1. AIR GOVERNOR
• 6.3.2. BRAKE VALVE
• 6.3.3. BRAKE CHAMBER
• 6.3.4. SLACK ADJUSTER
• 6.3.5. BRAKE ASSEMBLY
• 6.3.6. SPRING CYLINDER
• 6.3.7. PARKING BRAKE
• 6.3.8. PARKING BRAKE PAD
• 6.4. MAINTENANCE STANDARD
• 6.4.1. SPRING CYLINDER
• 7. WORK EQUIPMENT SYSTEM
• 7.1. STRUCTURE AND FUNCTION
• 7.1.1. GENERAL
• 7.1.2. HYDRAULIC PIPING
• 7.1.3. HYDRAULIC CIRCUIT SYSTEM
• 7.1.4. HYDRAULIC CIRCUIT DIAGRAM
• 7.1.5. HYDRAULIC TANK
• 7.1.6. HYDRAULIC PUMPS
• 7.1.7. POC VALVE
• 7.1.8. PPC VALVE
• 7.1.9. MAIN CONTROL VALVE
• 7.1.10. ACCUMULATOR
• 7.1.11. HYDRAULIC CYLINDER
• 7.1.12. BUCKET LINKAGE
• 7.1.13. BUCKET POSITIONER AND BOOM KICKOUT
• 7.1.14. WORK EQUIPMENT LEVER LINKAGE
• 7.2. TESTING AND ADJUSTING
• 7.2.1. STANDARD VALUE TABLE
• 7.2.2. TOOL LIST FOR TESTING AND ADJUSTING
• 7.2.3. MEASURING DUMP AND LIFT CONTROL LEVERS
• 7.2.4. ADJUSTING DUMP AND LIFT CONTROL LEVERS
• 7.2.5. MEASURING HYDRAULIC PRESSURE OF WORK EQUIPMENT
• 7.2.6. MEASURING WORK EQUIPMENT
• 7.2.7. MEASURING HYDRAULIC DRIFT OF WORK EQUIPMENT
• 7.2.8. ADJUSTING BUCKET POSITIONER
• 7.2.9. ADJUSTING BOOM KICKOUT
• 7.2.10. TROUBLESHOOTING
• 7.3. DISASSEMBLY AND ASSEMBLY
• 7.3.1. HYDRAULIC TANK
• 7.3.2. HYDRAULIC PUMP
• 7.3.3. HYDRAULIC FILTER
• 7.3.4. SWITCH,POC PUMP
• 7.3.5. SWITCH,PPC PUMP
• 7.3.6. POC VALVE
• 7.3.7. PPC VALVE
• 7.3.8. MAIN CONTROL VALVE
• 7.3.9. LIFT AND DUMP CYLINDERS
• 7.3.10. WORK EQUIPMENT
• 7.3.11. COUNTERWEIGHT
• 7.4. MAINTENANCE STANDARD
• 7.4.1. MAIN CONTROL VALVE
• 7.4.2. SWITCH AND POC (PPC) PUMP
• 7.4.3. HYDRAULIC PUMP
• 7.4.4. POC VALVE
• 7.4.5. POC VALVE (RELIEF VALVE)
• 7.4.6. PPC VALVE
• 7.4.7. DUMP CYLINDER
• 7.4.8. LIFT CYLINDER
• 7.4.9. BUCKET LINKAGE
• 7.4.10. BUCKET POSITIONER AND BOOM KICKOUT
• 7.4.11. BUCKET
• 8. ELECTRIC AND ELECTRONIC SYSTEM
• 8.1. STRUCTURE AND FUNCTION
• 8.1.1. ELECTRICAL WIRING DIAGRAM
• 8.1.2. ELECTRICAL WIRING DIAGRAM CIRCUIT
• 8.1.3. ENGINE STARTING CIRCUIT
• 8.1.4. ENGINE STOP CIRCUIT
• 8.1.5. PREHEATING CIRCUIT
• 8.1.6. COMBINATION SWITCH
• 8.1.7. ELECTRICAL TRANSMISSION CONTROL
• 8.1.8. ELECTRICAL PARKING BRAKE CONTROL
• 8.1.9. ELECTRONIC VEHICLE MONITORING SYSTEM (EVMS)
• 8.1.10. SENSORS
• 8.2. TESTING AND ADJUSTING
• 8.2.1. STANDARD VALUE TABLE FOR ELECTRICAL SYSTEM
• 8.2.2. ADJUSTING MACHINE MONITOR (SPEEDOMETER MODULE)
• 8.2.3. TROUBLESHOOTING
• 8.3. DISASSEMBLY AND ASSEMBLY
• 8.3.1. MACHINE MONITOR
• 9. OTHERS
• 9.1. LOGGING SPECIFICATIONS
• 9.1.1. HYDRAULIC CIRCUIT DIAGRAM
• 9.1.2. MAIN CONTROL VALVE
• 9.1.3. ARM CYLINDER
• 9.1.4. WORK EQUIPMENT
• 9.1.5. DISASSEMBLY OF MAIN CONTROL VALVE ASSEMBLY
• 9.1.6. ASSEMBLY OF MAIN CONTROL VALVE ASSEMBLY
• 9.1.7. MAIN CONTROL VALVE
• 9.1.8. WORK EQUIPMENT
• 9.1.9. ARM CYLINDER
• 9.2. DISASSEMBLY AND ASSEMBLY
• 9.2.1. SA SERIES