Komatsu WA250-1LC Wheel Loader Shop Manual CEBMW18020

Description

• Model List:
  • WA250-1LC Wheel Loader

• 1. MAIN MENU
• 2. CONTENTS
• 3. ENGINE
• 3.1. TESTING AND ADJUSTING
• 3.1.1. STANDARD VALUE TABLE
• 3.1.2. TOOL LIST
• 3.1.3. VALVE CLEARANCE
• 3.1.4. FUEL INJECTION TIMING
• 3.1.5. ENGINE OIL PRESSURE
• 3.1.6. ENGINE OIL TEMPERATURE
• 3.1.7. BLOWBY PRESSURE
• 3.1.8. EXHAUST GAS COLOR
• 3.1.9. ACCELERATOR PEDAL
• 3.2. DISASSEMBLY AND ASSEMBLY
• 3.2.1. NOZZLE HOLDER ASSEMBLY
• 3.2.2. CYLINDER HEAD ASSEMBLY
• 3.3. STRUCTURE AND FUNCTION
• 3.3.1. GENERAL
• 3.3.2. TORQUE CONVERTER AND TRANSMISSION PIPING
• 3.3.3. TORQUE CONVERTER CHARGING PUMP
• 3.3.4. TORQUE CONVERTER
• 3.3.5. TORQUE CONVERTER OIL FILTER
• 3.3.6. TORQUE CONVERTER OIL COOLER AND RADIATOR
• 3.3.7. TORQUEFLOW TRANSMISSION
• 3.3.8. CLUTCH PACK
• 3.3.9. TRANSMISSION CONTROL VALVE
• 3.4. TESTING AND ADJUSTING
• 3.4.1. STANDARD VALUE TABLE
• 3.4.2. ENGINE STALL SPEED
• 3.4.3. OIL PRESSURE OF TORQUE CONVERTER AND TRANSMISSION
• 3.4.4. SHIFT LEVER
• 3.4.5. METHOD FOR OPERATION OF EMERGENCY MANUAL SPOOL
• 3.4.6. TIRE AND WHEEL
• 3.4.7. TROUBLESHOOTING
• 3.5. DISASSEMBLY AND ASSEMBLY
• 3.5.1. TORQUE CONVERTER CHARGING PUMP
• 3.5.2. TRANSMISSION, TORQUE CONVERTER
• 3.5.3. TORQUE CONVERTER
• 3.5.4. TRANSMISSION CONTROL VALVE
• 3.5.5. TRANSMISSION SOLENOID VALVE
• 3.6. MAINTENANCE STANDARD
• 3.6.1. ENGINE AND TRANSMISSION MOUNT
• 3.6.2. TORQUE CONVERTER CHARGING PUMP
• 3.6.3. TORQUE CONVERTER
• 3.6.4. TRANSMlSSlON
• 3.6.5. TRANSMISSION CLUTCH
• 4. STEERING SYSTEM
• 4.1. STRUCTURE AND FUNCTION
• 4.1.1. STEERING PIPING
• 4.1.2. HYDRAULIC CIRCUIT FOR STEERING
• 4.1.3. HYDRAULIC CIRCUIT DIAGRAM FOR STEERING
• 4.1.4. TWOWAY RESTRICTOR VALVE
• 4.1.5. STEERING VALVE
• 4.1.6. PRIORITY VALVE
• 4.1.7. STEERING COLUMN
• 4.1.8. STEERING CYLINDER
• 4.1.9. CENTER HINGE PIN
• 4.2. TESTING AND ADJUSTING
• 4.2.1. STANDARD VALUE TABLE
• 4.2.2. TOOL LIST
• 4.2.3. STEERING WHEEL PLAY
• 4.2.4. OPERATING FORCE OF STEERING WHEEL
• 4.2.5. OPERATING TIME OF STEERING WHEEL
• 4.2.6. STEERING OIL PRESSURE
• 4.2.7. TROUBLESHOOTING
• 4.3. DISASSEMBLY AND ASSEMBLY
• 4.3.1. STEERING CYLINDER
• 4.3.2. CENTER HINGE PIN REMOVAL
• 4.4. MAINTENANCE STANDARD
• 4.4.1. HYDRAULIC AND STEERING PUMP
• 4.4.2. STEERING CYLINDER MOUNT
• 4.4.3. CENTER HINGE PIN
• 4.4.4. STEERING COLUMN AND GEAR BOX
• 4.4.5. PRIORITY VALVE
• 5. BRAKE AND AIR SYSTEM
• 5.1. STRUCTURE AND FUNCTION
• 5.1.1. BRAKE PIPING
• 5.1.2. POWER MASTER CYLINDER
• 5.1.3. BRAKE
• 5.1.4. PARKING BRAKE CONTROL
• 5.1.5. PARKING BRAKE
• 5.1.6. OPERATION OF PARKING BRAKE
• 5.1.7. BRAKE CALIPER
• 5.2. TESTING AND ADJUSTING
• 5.2.1. STANDARD VALUE TABLE
• 5.2.2. TOOL LIST
• 5.2.3. MEASURING BRAKE PEDAL
• 5.2.4. BRAKE PEDAL LINKAGE
• 5.2.5. BRAKE PERFORMANCE
• 5.2.6. BRAKE PISTON LEAKAGE
• 5.2.7. BRAKE DISC WEAR
• 5.2.8. AIR BLEEDING FROM BRAKE CIRCUIT
• 5.2.9. PARKING BRAKE PERFORMANCE
• 5.2.10. PARKING BRAKE
• 5.2.11. TROUBLESHOOTING
• 5.3. DISASSEMBLY AND ASSEMBLY
• 5.3.1. POWER MASTER CYLINDER
• 5.3.2. PARKING BRAKE
• 5.3.3. PARKING BRAKE PAD
• 5.4. MAINTENANCE STANDARD
• 5.4.1. POWER MASTER CYLINDER
• 5.4.2. BRAKE
• 5.4.3. PARKING BRAKE
• 6. WORK EQUIPMENT SYSTEM
• 6.1. STRUCTURE AND FUNCTION
• 6.1.1. HYDRAULIC PIPING
• 6.1.2. HYDRAULIC CIRCUIT
• 6.1.3. HYDRAULIC CIRCUIT DIAGRAM
• 6.1.4. WORK EQUIPMENT LEVER LINKAGE
• 6.1.5. BUCKET LINKAGE
• 6.1.6. BUCKET POSITIONER AND BOOM KICKOUT
• 6.1.7. HYDRAULIC TANK
• 6.1.8. HYDRAULIC AND STEERING PUMPS
• 6.1.9. MAIN CONTROL VALVE
• 6.1.10. RELIEF VALVE
• 6.1.11. SAFElY VALVE W/SUCTION VALVE
• 6.1.12. SUCTION VALVE
• 6.1.13. LIFT AND DUMP SPOOLS AT NEUTRAL POSITION
• 6.1.14. LIFT SPOOL AT RAISE POSITION
• 6.1.15. LIFT SPOOL AT LOWER POSITION
• 6.1.16. LIFT SPOOL AT FLOAT POSITION
• 6.1.17. DUMP SPOOL AT TILT BACK POSITION
• 6.1.18. DUMP SPOOL AT DUMP POSITION
• 6.1.19. HYDRAULIC CYLINDER
• 6.2. TESTING AND ADJUSTING
• 6.2.1. STANDARD VALUE TABLE
• 6.2.2. DUMP AND LIFT CONTROL LEVERS
• 6.2.3. HYDRAULIC PRESSURE
• 6.2.4. LIFT ARM AND BUCKET
• 6.2.5. HYDRAULIC DRIFT OF LIFT ARM AND BUCKET
• 6.2.6. BUCKET POSITIONER
• 6.2.7. BOOM KICKOUT
• 6.2.8. TROUBLESHOOTING
• 6.3. DISASSEMBLY AND ASSEMBLY
• 6.3.1. HYDRAULIC TANK
• 6.3.2. HYDRAULIC FILTER
• 6.3.3. HYDRAULIC, STEERING PUMP
• 6.3.4. MAIN CONTROL VALVE
• 6.4. STRUCTURE AND FUNCTION
• 6.4.1. HYDRAULIC AND STEERING PUMP
• 6.4.2. MAIN CONTROL VALVE
• 6.4.3. DUMP CYLINDER
• 6.4.4. LIFT CYLINDER
• 6.4.5. BUCKET LINKAGE
• 6.4.6. BUCKET POSITIONER AND BOOM KICKOUT
• 6.4.7. BUCKET
• 7. ELECTRIC AND ELECTRONIC SYSTEM
• 7.1. STRUCTURE AND FUNCTION
• 7.1.1. ELECTRICAL WIRING CIRCUIT DlAGRAMS
• 7.1.2. ENGINE STARTING CIRCUIT
• 7.1.3. ENGINE STOP CIRCUIT
• 7.1.4. ELECTRICAL TRANSMISSION CONTROL
• 7.1.5. ELECTRONIC VEHICLE MONITORING SYSTEM (RIMS)
• 7.1.6. MONITOR PANEL
• 7.2. TESTING AND ADJUSTING
• 7.2.1. ADJUSTING SPEEDOMETER MODULE
• 7.2.2. TROUBLESHOOTING
• 7.2.3. CONNECTION TABLE FOR CONNECTOR PIN NUMBER CONNECT1
• 7.3. DISASSEMBLY AND ASSEMBLY
• 7.3.1. ELECTRONIC VECHICLE MONITOR SYSTEM (EVMS)
• 8. OTHER
• 8.1. STRUCTURE AND FUNCTION
• 8.1.2. AIR CONDITIONER
• 8.2. DISASSEMBLY AND ASSEMBLY
• 8.2.2. AIR CONDITIONER UNIT
• 8.2.3. CONDENSER (AIR CONDITIONER)
• 8.2.4. DRY RECEIVER (AIR CONDITIONER)
• 8.2.5. COMPRESSOR (AIR CONDITIONER)
• 8.3. GEAR PUMP
• 8.3.1. GENERAL
• 8.3.2. SA SERIES
• 8.4. METRIC CONVERSIONS