Komatsu WA900-1 (SN from 10001) and WA900-1-L (SN: A20001-20007) 4WD Wheeled Loaders Workshop Manual (SEBM008002)

Illustrated factory Workshop Manual for Komatsu 4WD Wheeled Loaders Models WA900-1 and WA900-1-L.

This manual will assist you in diagnosing, repairing, and adjusting for your 4wd wheeled loader.
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Covered Models:
   WA900-1 (SN: 10001-)
   WA900-1-L (SN: A20001-20007)

Format: PDF, 863 pages
Language: English
Table of Contents:
   GENERAL
      GENERAL ASSEMBLY DRAWING
      SPECIFICATIONS
      WEIGHT TABLE
      LIST OF LUBRICANT AND WATER
   STRUCTURE AND FUNCTION
      POWER TRAIN
      POWER TRAIN SYSTEM
      ENGINE CONTROL
      SERVO CYLINDER
      RADIATOR AND COOLER
      DAMPER
      TORQUE CONVERTER AND TRANSMISSION PIPING
      TRANSMISSION HYDRAULIC SYSTEM DIAGRAM
      TRANSMISSION HYDRAULIC CIRCUIT DIAGRAM
      TORQUE CONVERTER
      TORQUE CONVERTER OIL FILTER
      TRANSMISSION
      TRANSFER
      TRANSMISSION CONTROL VALVE
      TORQUE CONVERTER OIL COOLER
      DRIVE SHAFT
      CENTER SUPPORT
      AXLE
      FINAL DRIVE
      FLOOR SUPPORT
      AXLE MOUNT AND CENTER HINGE PIN
      STEERING PIPING
      STEERING COLUMN
      STEERING PUMP
      SWITCH PUMP
      STEERING DEMAND VALVE
      TWO-WAY RESTRICTOR VALVE
      STEERING UNIT (ORBIT-ROLL VALVE)
      DIVERTER VALVE
      BRAKE AND AIR PIPING
      BRAKE AND AIR CIRCUIT DIAGRAM
      AIR GOVERNOR
      AIR TANK
      SAFETY VALVE
      BRAKE VALVE
      RELAY VALVE
      TWO-WAY VALVE
      BRAKE CHAMBER
      SLACK ADJUSTER
      BRAKE
      PARKING BRAKE
      HYDRAULIC PIPING
      WORK EQUIPMENT HYDRAULIC CIRCUIT DIAGRAM
      WORK EQUIPMENT LEVER LINKAGE
      HYDRAULIC TANK
      MAIN PISTON PUMP
      ES VALVE
      SERVO VALVE
      PPC VALVE
      PPC RELIEF VALVE
      ACCUMULATOR
      MAIN CONTROL VALVE
      LUBRICATION OF WORK EQUIPMENT
      WORK EQUIPMENT LINKAGE
      BUCKET POSITIONER AND BOOM KICK-OUT
      CAB
      AIR CONDITIONER
      ELECTRIC CIRCUIT DIAGRAM
      MACHINE MONITOR SYSTEM
      ENGINE STARTING CIRCUIT
      ENGINE STOP CIRCUIT
      PREHEATING CIRCUIT
      ELECTRICAL TRANSMISSION CONTROL
      KICK-DOWN SWITCH
      ELECTRICAL PARKING BRAKE CONTROL
      TRANSMISSION CLUTCH OVERRUN CONTROLLER
   TESTING AND ADJUSTING
      STANDARD VALUE TABLE FOR ENGINE
      STANDARD VALUE TABLE FOR CHASSIS
      STANDARD VALUE TABLE FOR ELECTRICAL SYSTEM
      TOOLS FOR TESTING, ADJUSTING, AND TROUBLESHOOTING
      ADJUSTING VALVE CLEARANCE
      MEASURING COMPRESSION PRESSURE
      TESTING AND ADJUSTING FUEL INJECTION TIMING
      CHECKING FOR ABNORMALITY IN FUEL LEVEL SENSOR
      MEASURING ACCELERATOR PEDAL OPERATING FORCE
      MEASURING ACCELERATOR PEDAL OPERATING ANGLE
      MEASURING SHIFT LEVER
      MEASURING ENGINE STALL SPEED
      MEASURING OIL PRESSURE OF TORQUE CONVERTER AND TRANSMISSION
      METHOD FOR OPERATION OF EMERGENCY MANUAL SPOOL
      TIRE AND WHEEL
      MEASURING STEERING WHEEL PLAY
      MEASURING OPERATING FORCE AND TIME OF STEERING WHEEL
      MEASURING STEERING OIL PRESSURE
      MEASURING EMERGENCY STEERING PRESSURE
      ADJUSTING JOYSTICK STEERING
      MEASURING BRAKE PEDAL
      MEASURING AIR PRESSURE
      TESTING BRAKE PERFORMANCE
      CHECKING BRAKE PISTON LEAKAGE
      MEASURING WEAR OF BRAKE DISC
      BLEEDING AIR FROM BRAKE SYSTEM
      TESTING PARKING BRAKE PERFORMANCE
      CHECKING AND ADJUSTING PARKING BRAKE
      MEASURING DUMP AND LIFT CONTROL LEVERS
      MEASURING HYDRAULIC PRESSURE OF WORK EQUIPMENT
      AIR BLEEDING FROM PISTON PUMP
      MEASURING WORK EQUIPMENT
      MEASURING HYDRAULIC DRIFT OF WORK EQUIPMENT
      ADJUSTING BUCKET POSITIONER
      ADJUSTING BOOM KICK-OUT
      ADJUSTING MACHINE MONITOR (SPEEDOMETER MODULE)
      TROUBLESHOOTING
   DISASSEMBLY AND ASSEMBLY
      METHOD OF USING MANUAL
      PRECAUTIONS WHEN CARRYING OUT OPERATION
      FUEL INJECTION PUMP FOR RIGHT BANK
      FUEL INJECTION PUMP FOR LEFT BANK
      ENGINE OIL COOLER
      WATER PUMP
      NOZZLE HOLDER
      CYLINDER HEAD
      RADIATOR
      ENGINE
      DAMPER
      TORQUE CONVERTER, TRANSMISSION
      TORQUE CONVERTER
      TORQUE CONVERTER VALVE
      PTO
      TRANSMISSION
      TRANSFER
      TRANSMISSION VALVE
      CENTER SUPPORT
      DRIVE SHAFT
      FRONT AXLE
      REAR AXLE
      DIFFERENTIAL
      FINAL DRIVE
      STEERING UNIT
      STEERING DEMAND VALVE
      DIVERTER VALVE
      BRAKE VALVE
      BRAKE CHAMBER
      SLACK ADJUSTER
      BRAKE
      SPRING CYLINDER
      PARKING BRAKE CALIPER
      PARKING BRAKE PAD
      HYDRAULIC TANK AND FILTER CASE
      HYDRAULIC PUMP
      SWITCH PUMP
      PISTON PUMP
      PPC VALVE
      MAIN CONTROL VALVE
      HYDRAULIC CYLINDER
      CENTER HINGE PIN
      WORK EQUIPMENT
      FUEL TANK
   MAINTENANCE STANDARD
      ENGINE MOUNT
      TRANSMISSION MOUNT
      DAMPER
      TORQUE CONVERTER CHARGING PUMP AND PPC PUMP
      TORQUE CONVERTER
      TORQUE CONVERTER REGULATOR VALVE
      TRANSMISSION
      TRANSFER
      TRANSMISSION CONTROL VALVE
      DRIVE SHAFT
      CENTER SUPPORT
      DIFFERENTIAL
      FINAL DRIVE
      AXLE MOUNT
      CENTER HINGE PIN
      STEERING COLUMN
      DIVERTER VALVE
      STEERING CYLINDER MOUNT
      EMERGENCY STEERING PUMP
      STEERING CYLINDER
      BRAKE CHAMBER
      BRAKE VALVE
      SLACK ADJUSTER
      PARKING BRAKE
      BRAKE
      SPRING CYLINDER
      CONTROL PUMP
      PPC VALVE
      MAIN CONTROL VALVE
      DUMP CYLINDER
      LIFT CYLINDER
      BUCKET LINKAGE
      BUCKET POSITIONER AND BOOM KICK-OUT
   OTHERS
      HYDRAULIC PIPING
      WORK EQUIPMENT HYDRAULIC CIRCUIT DIAGRAM
      WORK EQUIPMENT HYDRAULIC CIRCUIT MACHINE WITH JOYSTICK STEERING
      ELECTRIC CIRCUIT DIAGRAM
      ELECTRIC CIRCUIT DIAGRAM
      ELECTRIC CIRCUIT DIAGRAM (MACHINE WITH JOYSTICK STEERING)
      CONNECTOR ARRANGEMENT DIAGRAM
      ELECTRICAL CIRCUIT SYSTEM
      ELECTRICAL CIRCUIT SYSTEM