Komatsu WA300-1, WA320-1 Wheel Loader Shop Manual SEBM04190107

Description

• Model List:
  • WA300-1 Wheel Loader
  • WA320-1 Wheel Loader

• 1. COVER
• 2. CONTENTS
• 3. GENERAL
• 3.1. GENERAL VIEW
• 3.2. GENERAL ASSEMBLY DRAWING
• 3.3. SPECIFICATIONS
• 3.4. ENGINE ASSEMBLY DRAWING
• 3.5. ENGINE SPECIFICATIONS
• 3.6. WEIGHT TABLE
• 3.7. TABLE OF OIL AND COOLANT QUANTITIES
• 3.8. LOCATION OF SERIAL NUMBERS
• 4. ENGINE
• 4.1. STRUCTURE AND FUNCTION
• 4.1.1. ENGINE AND TRANSMISSION MOUNT
• 4.1.2. RADIATOR AND COOLER
• 4.1.3. FUEL TANK AND PIPING
• 4.1.4. ENGINE CONTROL
• 4.2. TESTING AND ADJUSTING
• 4.2.1. TABLE OF JUDGEMENT STANDARD
• 4.2.2. TESTING AND ADJUSTING TOOL LIST
• 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 ENGINE OIL PRESSURE AND TEMPERATURE
• 4.2.7. MEASURING BLOWBY PRESSURE
• 4.2.8. TESTING AND ADJUSTING FAN BELT TENSION
• 4.2.9. MEASURING EXHAUST GAS COLOR
• 4.2.10. MEASURING OPERATING FORCE AND OPERATING ANGLE OF ACCELERATOR PEDAL
• 4.2.11. MEASURING ACCELERATOR PEDAL
• 4.2.12. ADJUSTING FUEL CUT SOLENOID
• 4.3. DISASSEMBLY AND ASSEMBLY
• 4.3.1. STARTING MOTOR ASSEMBLY
• 4.3.2. ALTERNATOR ASSEMBLY
• 4.3.3. ENGINE OIL COOLER ASSEMBLY
• 4.3.4. FUEL INJECTION PUMP ASSEMBLY
• 4.3.5. WATER PUMP ASSEMBLY
• 4.3.6. NOZZLE HOLDER ASSEMBLY
• 4.3.7. TURBOCHARGER ASSEMBLY
• 4.3.8. CYLINDER HEAD ASSEMBLY
• 4.3.9. FUEL TANK ASSEMBLY
• 5. POWER TRAIN
• 5.1. STRUCTURE AND FUNCTION
• 5.1.1. GENERAL
• 5.1.2. HYDRAULIC CIRCUIT DIAGRAM FOR POWER TRAIN
• 5.1.3. POWER TRAIN HYDRAULIC CIRCUIT SCHEMATICS
• 5.1.4. POWER TRAIN HYDRAULIC CIRCUIT DIAGRAM
• 5.1.5. TORQUE CONVERTER AND TRANSMISSION PIPING
• 5.1.6. TORQUE CONVERTER CHARGING PUMP
• 5.1.7. TORQUE CONVERTER
• 5.1.8. TORQUE CONVERTER OIL FILTER
• 5.1.9. TORQUE CONVERTER OIL COOLER
• 5.1.10. TORQUE CONVERTER REGULATOR VALVE
• 5.1.11. TORQFLOW TRANSMISSION
• 5.1.12. TRANSMISSION CONTROL VALVE (SERIAL NO. 1000119999)
• 5.1.13. TRANSMISSION CONTROL VALVE (SERIAL NO. 20001 AND UP)
• 5.1.14. DIFFERENTIAL
• 5.1.15. FINAL DRIVE
• 5.1.16. AXLE MOUNT
• 5.1.17. 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. TIRE AND WHEEL
• 5.2.7. METHOD FOR OPERATION OF EMERGENCY MANUAL SPOOL
• 5.2.8. TROUBLESHOOTING
• 5.3. DISASSEMBLY AND ASSEMBLY
• 5.3.1. TORQUE CONVERTER CHARGING PUMP
• 5.3.2. TRANSMISSION, TORQUE CONVERTER
• 5.3.3. TORQUE CONVERTER
• 5.3.4. TRANSMISSION CONTROL VALVE
• 5.4. MAINTENANCE STANDARD
• 5.4.1. ENGINE AND TRANSMISSION MOUNT
• 5.4.2. TORQUE CONVERTER CHARGING PUMP
• 5.4.3. TORQUE CONVERTER
• 5.4.4. TORQUE CONVERTER REGULATOR VALVE
• 5.4.5. TRANSMISSION
• 5.4.6. TRANSMISSION CLUTCH ASSEMBLY
• 5.4.7. TRANSMISSION CONTROL VALVE
• 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. STEERING COLUMN AND GEAR BOX
• 6.1.5. STEERING LINKAGE
• 6.1.6. STEERING CYLINDER
• 6.1.7. CENTER HINGE PIN
• 6.1.8. EMERGENCY STEERING PUMP (IF EQUIPPED)
• 6.1.9. DIVERTER VALVE (IF EQUIPPED)
• 6.1.10. SECURITY VALVE (IF EQUIPPED)
• 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 LOCK TO LOCK
• 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 BOX
• 6.3.2. STEERING CYLINDER
• 6.3.3. CENTER HINGE PIN
• 6.4. MAINTENANCE STANDARD
• 6.4.1. STEERING VALVE
• 6.4.2. STEERING CYLINDER MOUNT
• 6.4.3. STEERING CYLINDER
• 6.4.4. CENTER HINGE PIN
• 6.4.5. STEERING LINKAGE
• 6.4.6. STEERING COLUMN AND GEAR BOX
• 6.4.7. EMERGENCY STEERING PUMP (IF EQUIPPED)
• 6.4.8. DIVERTER VALVE (IF EQUIPPED)
• 6.4.9. SECURITY VALVE (IF EQUIPPED)
• 7. BRAKE SYSTEM
• 7.1. STRUCTURE AND FUNCTION
• 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. BRAKE PERFORMANCE
• 7.2.5. CHECKING BRAKE PISTON LEAKAGE
• 7.2.6. MEASURING WEAR OF BRAKE DISC
• 7.2.7. AIR BLEEDING FROM BRAKE LINE
• 7.2.8. PARKING BRAKE PERFORMANCE
• 7.2.9. CHECKING AND ADJUSTING PARKING BRAKE
• 7.2.10. MEASURING CLEARANCE
• 7.2.11. TROUBLESHOOTING
• 7.3. DISASSEMBLY AND ASSEMBLY
• 7.3.1. PARKING BRAKE PAD
• 7.4. MAINTENANCE STANDARD
• 7.4.1. BRAKE BOOSTER
• 7.4.2. BRAKE
• 7.4.3. PARKING BRAKE
• 8. WORK EQUIPMENT SYSTEM
• 8.1. STRUCTURE AND FUNCTION
• 8.1.1. GENERAL
• 8.1.2. HYDRAULIC CIRCUIT SYSTEM
• 8.1.3. HYDRAULIC CIRCUIT DIAGRAM (FOR 2SPOOL)
• 8.1.4. HYDRAULIC CIRCUIT DIAGRAM (FOR 3SPOOL)
• 8.1.5. WORK EQUIPMENT LEVER LINKAGE
• 8.1.6. BUCKET LINKAGE
• 8.1.7. BUCKET POSITIONER AND BOOM KICKOUT
• 8.1.8. HYDRAULIC TANK
• 8.1.9. HYDRAULIC AND STEERING PUMPS
• 8.1.10. MAIN CONTROL VALVE (FOR 2SPOOL)
• 8.1.11. MAIN CONTROL VALVE (FOR 3SPOOL)
• 8.1.12. HYDRAULIC CYLINDER
• 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
• 8.2.6. MEASURING LIFT ARM AND BUCKET
• 8.2.7. MEASURING HYDRAULIC DRIFT OF LIFT ARM AND BUCKET
• 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 FILTER
• 8.3.3. HYDRAULIC, STEERING PUMP
• 8.3.4. MAIN CONTROL VALVE
• 8.3.5. LIFT AND DUMP CYLINDER
• 8.4. MAINTENANCE STANDARD
• 8.4.1. MAIN CONTROL VALVE (FOR 2SPOOL)
• 8.4.2. MAIN CONTROL VALVE (FOR 3SPOOL)
• 8.4.3. DUMP CYLINDER
• 8.4.4. LIFT CYLINDER
• 8.4.5. BUCKET LINKAGE
• 8.4.6. BUCKET POSITIONER AND BOOM KICKOUT
• 8.4.7. BUCKET
• 8.4.8. HYDRAULIC AND STEERING PUMP
• 9. ELECTRIC AND ELECTRONIC SYSTEM
• 9.1. STRUCTURE AND FUNCTION
• 9.1.1. ELECTRIC AND ELECTRONIC SYSTEM
• 9.1.2. ELECTRICAL CIRCUIT DIAGRAM
• 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. ELECTRONIC VEHICLE MONITORING SYSTEM (EVMS)
• 9.2. TESTING AND ADJUSTING
• 9.2.1. ADJUSTING SPEEDOMETER MODULE
• 9.2.2. TROUBLESHOOTING
• 9.3. DISASSEMBLY AND ASSEMBLY
• 9.3.1. MACHINE MONITOR
• 10. OTHERS
• 10.1. STRUCTURE AND FUNCTION
• 10.1.2. AIR CONDITIONER (OPTION)
• 10.2. DISASSEMBLY AND ASSEMBLY
• 10.2.2. AIR CONDITIONER UNIT
• 10.2.3. CONDENSER FOR AIR CONDITIONER
• 10.2.4. DRY RECEIVER
• 10.2.5. COMPRESSOR FOR AIR CONDITIONER
• 10.3. GEAR PUMP
• 10.3.1. GENERAL
• 10.3.2. SA SERIES