Komatsu WA800-1, WA800-2 Wheel Loader Shop Manual SEBM04280113

Description

• Model List:
  • WA800-1 Wheel Loader
  • WA800-2 Wheel Loader

• 1. MAIN MENU
• 2. CONTENTS
• 3. ENGINE
• 3.1. STRUCTURE AND FUNCTION
• 3.1.1. RADIATOR AND COOLER
• 3.1.2. ENGINE SPEED CONTROL
• 3.1.3. SERVO CYLINDER
• 3.1.4. ENGINE LOW IDLING SELECT SYSTEM
• 3.2. TESTING AND ADJUSTING
• 3.2.1. STANDARD VALUE TABLE
• 3.2.2. ADJUSTING VALVE CLEARANCE
• 3.2.3. MEASURING COMPRESSION PRESSURE
• 3.2.4. TESTING AND ADJUSTING FUEL INJECTION TIMING
• 3.2.5. MEASURING ACCELERATOR PEDAL OPERATING FORCE
• 3.2.6. MEASURING ACCELERATOR PEDAL OPERATING ANGLE
• 3.3. DISASSEMBLY AND ASSEMBLY
• 3.3.1. WA8001
• 3.3.2. WA8002
• 3.4. MAINTENANCE STANDARD
• 3.4.1. ENGINE MOUNT
• 4. POWER TRAIN
• 4.1. STRUCTURE AND FUNCTION
• 4.1.1. GENERAL
• 4.1.2. HYDRAULIC CIRCUIT SCHEMATICS
• 4.1.3. HYDRAULIC CIRCUIT DIAGRAM
• 4.1.4. TRANSMISSION MOUNT
• 4.1.5. TORQUE CONVERTER AND TRANSMISSION PIPING
• 4.1.6. TORQUE CONVERTER OIL COOLER
• 4.1.7. DAMPER
• 4.1.8. TORQUE CONVERTER OIL FILTER
• 4.1.9. PILOT OIL FILTER
• 4.1.10. TORQUE CONVERTER
• 4.1.11. TRANSMISSION
• 4.1.12. TRANSFER
• 4.1.13. DRIVE SHAFT
• 4.1.14. AXLE MOUNT
• 4.1.15. AXLE AND DIFFERENTIAL
• 4.1.16. CENTER SUPPORT
• 4.1.17. FINAL DRIVE
• 4.1.18. 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 SHIFT LEVER
• 4.2.4. MEASURING ENGINE STALL SPEED
• 4.2.5. MEASURING OIL PRESSURE OF TORQUE CONVERTER AND TRANSMISSION
• 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
• 4.4. MAINTENANCE STANDARD
• 4.4.1. TRANSMISSION MOUNT
• 4.4.2. DAMPER
• 4.4.3. TORQUE CONVERTER
• 4.4.4. TORQUE CONVERTER REGULATOR VALVE
• 4.4.5. TRANSMISSION
• 4.4.6. TRANSMISSION CONTROL VALVE
• 4.4.7. TRANSFER
• 4.4.8. DRIVE SHAFT
• 4.4.9. CENTER SUPPORT
• 4.4.10. DIFFERENTIAL
• 4.4.11. TORQUE CONVERTER CHARGING PUMP AND POC (PPC) PUMP
• 4.4.12. FINAL DRIVE
• 4.4.13. AXLE MOUNT
• 5. STEERING SYSTEM
• 5.1. STRUCTURE AND FUNCTION
• 5.1.1. GENERAL
• 5.1.2. STEERING COLUMN, GEAR BOX AND LINKAGE
• 5.1.3. HYDRAULIC CIRCUIT FOR STEERING
• 5.1.4. STEERING CONTROL SYSTEM
• 5.1.5. TWOWAY RESTRICTOR VALVE
• 5.1.6. STEERING CYLINDER
• 5.1.7. CENTER HINGE PIN
• 5.1.8. EMERGENCY STEERING SYSTEM
• 5.1.9. STEERING DEMAND VALVE (MACHINE WITH JOYSTICK STEERING)
• 5.1.10. STEERING UNIT (ORBITROLL VALVE) (MACHINE WITH JOYSTICK STEERING)
• 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. MEASURING OPERATING TIME OF STEERING WHEEL
• 5.2.6. TESTING AND ADJUSTING STEERING LINKAGE
• 5.2.7. MEASURING STEERING OIL PRESSURE
• 5.2.8. MEASURING EMERGENCY STEERING PRESSURE
• 5.2.9. ADJUSTING JOYSTICK STEERING
• 5.2.10. TROUBLESHOOTING
• 5.3. DISASSEMBLY AND ASSEMBLY
• 5.4. MAINTENANCE STANDARD
• 5.4.1. STEERING COLUMN AND GEAR BOX
• 5.4.2. STEERING VALVE
• 5.4.3. STEERING CYLINDER MOUNT
• 5.4.4. CENTER HINGE PIN
• 5.4.5. STEERING CYLINDER
• 5.4.6. EMERGENCY STEERING PUMP
• 5.4.7. DIVERTER VALVE
• 6. BRAKE AND AIR SYSTEM
• 6.1. STRUCTURE AND FUNCTION
• 6.1.1. BRAKE AND AIR PIPING
• 6.1.2. SLACK ADJUSTER
• 6.1.3. BRAKE
• 6.1.4. PARKING BRAKE
• 6.1.5. BRAKE CALIPER
• 6.1.6. SPRING CYLINDER
• 6.1.7. PARKING BRAKE SOLENOID VALVE
• 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 PRESSURE
• 6.2.5. TESTING BRAKE PERFORMANCE
• 6.2.6. CHECKING BRAKE PISTON LEAKAGE
• 6.2.7. MEASURING WEAR OF BRAKE DISC
• 6.2.8. AIR BLEEDING FROM BRAKE LINE
• 6.2.9. TESTING PARKING BRAKE PERFORMANCE
• 6.2.10. CHECKING AND ADJUSTING PARKING BRAKE
• 6.2.11. TROUBLESHOOTING
• 6.3. DISASSEMBLY AND ASSEMBLY
• 6.4. MAINTENANCE STANDARD
• 6.4.1. BRAKE VALVE
• 6.4.2. BRAKE CHAMBER
• 6.4.3. SLACK ADJUSTER
• 6.4.4. BRAKE
• 6.4.5. SPRING CYLINDER
• 6.4.6. PARKING BRAKE
• 7. WORK EQUIPMENT SYSTEM
• 7.1. STRUCTURE AND FUNCTION
• 7.1.1. HYDRAULIC PIPING
• 7.1.2. HYDRAULIC CIRCUIT SCHEMATIC
• 7.1.3. HYDRAULIC CIRCUIT DIAGRAM
• 7.1.4. HYDRAULIC CIRCUIT DIAGRAM (MACHINE WITH JOYSTICK STEERING)
• 7.1.5. HYDRAULIC TANK
• 7.1.6. PISTON PUMP
• 7.1.7. WORK EQUIPMENT LEVER LINKAGE
• 7.1.8. POC VALVE (Pilot Operated Control Valve) (For WA8001)
• 7.1.9. PPC VALVE (Proportional Pressure Valve) (For WA8002)
• 7.1.10. POC (PPC) RELIEF VALVE
• 7.1.11. MAIN CONTROL VALVE
• 7.1.12. ACCUMULATOR
• 7.1.13. OPERATION OF HYDRAULIC CIRCUIT
• 7.1.14. HYDRAULIC CYLINDER
• 7.1.15. BUCKET LINKAGE
• 7.1.16. BUCKET POSITIONER AND BOOM KICKOUT
• 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. AIR BLEEDING FROM PISTON PUMP
• 7.2.7. MEASURING WORK EQUIPMENT
• 7.2.8. MEASURING HYDRAULIC DRIFT OF WORK EQUIPMENT
• 7.2.9. ADJUSTING BUCKET POSITIONER
• 7.2.10. ADJUSTING BOOM KICKOUT
• 7.2.11. TROUBLESHOOTING
• 7.3. DISASSEMBLY AND ASSEMBLY
• 7.3.1. WA800 1
• 7.3.2. WA8002
• 7.4. MAINTENANCE STANDARD
• 7.4.1. BUCKET LINKAGE
• 7.4.2. BUCKET POSITIONER AND BOOM KICKOUT
• 7.4.3. MAIN CONTROL VALVE
• 7.4.4. POC VALVE (PILOT OPERATED CONTROL VALVE)
• 7.4.5. CONTROL PUMP
• 7.4.6. LIFT CYLINDER
• 7.4.7. DUMP CYLINDER
• 8. ELECTRIC AND ELECTRONIC SYSTEM
• 8.1. STRUCTURE AND FUNCTION
• 8.1.1. ELECTRIC AND ELECTRONIC SYSTEM
• 8.1.2. ELECTRIC CIRCUIT DIAGRAM
• 8.1.3. ELECTRIC CIRCUIT DIAGRAM (MACHINE WITH JOYSTICK STEERING)
• 8.1.4. ENGINE STARTING CIRCUIT
• 8.1.5. ENGINE STOP CIRCUIT
• 8.1.6. COMBINATION SWITCH
• 8.1.7. ELECTRICAL TRANSMISSION CONTROL
• 8.1.8. KICKDOWN SWITCH
• 8.1.9. ELECTRICAL PARKING BRAKE CONTROL
• 8.1.10. PROXIMITY SWITCH
• 8.1.11. AUTO PRIMING SYSTEM (APS)
• 8.1.12. TRANSMISSION CLUTCH OVERRUN CONTROLLER
• 8.1.13. ELECTRONIC VEHICLE MONITORING SYSTEM (EVMS)
• 8.1.14. 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. CHECKING FOR ABNORMALITY IN FUEL LEVEL SENSOR
• 8.2.4. TROUBLESHOOTING
• 8.3. DISASSEMBLY AND ASSEMBLY
• 8.3.1. ELECTRONIC VEHICLE MONITORING SYSTEM (EVMS)
• 9. OTHERS
• 9.1. STRUCTURE AND FUNCTION
• 9.2. DISASSEMBLY AND ASSEMBLY
• 9.2.1. WA8001
• 9.2.2. WA8002
• 9.3. GEAR PUMP SA SERIES
• 9.3.1. DISASSEMBLY
• 9.3.2. ASSEMBLY