Komatsu PC120-6 Excel (SN from 57499) Crawler Excavators (Japan) Workshop Manual (SEBM010404)

Illustrated factory Workshop Manual for Komatsu Crawler Excavators Models PC120-6 Excel.

This manual will assist you in diagnosing, repairing, and adjusting for your crawler excavator.
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Covered Models (Japan):
   PC120-6 Excel (SN: 57499-)

Format: PDF, 541 pages
Language: English
Table of Contents:
   GENERAL
      GENERAL ASSEMBLY DRAWING
      SPECIFICATIONS
      WEIGHT TABLE
      LIST OF LUBRICANT AND WATER
   STRUCTURE AND FUNCTION
      RADIATOR AND OIL COOLER
      ENGINE CONTROL
      PTO (COUPLING)
      POWER TRAIN
      SWING CIRCLE
      SWING MACHINERY
      TRACK FRAME
      TRACK SHOE
      HYDRAULIC CIRCUIT DIAGRAM
      HYDRAULIC TANK
      HYDRAULIC PUMP
      CONTROL VALVE
      CLSS
      SWING MOTOR
      CENTER SWIVEL JOINT
      TRAVEL MOTOR
      VALVE CONTROL
      WORK EQUIPMENT・SWING PPC VALVE
      TRAVEL PPC VALVE
      SERVICE PPC VALVE
      SAFETY LOCK VALVE
      PPC ACCUMULATOR
      STRAIGHT-TRAVEL SYSTEM
      SOLENOID VALVE
      ACCUMULATOR FOR BREAKER
      ADDITIONAL FILTER FOR BREAKER
      WORK EQUIPMENT
      AIR CONDITIONER
      ACTUAL ELERICAL WIRING DIAGRAM
      ELECTRICAL CIRCUIT DIAGRAM
      ELECTRIC CONTROL SYSTEM
      MACHINE MONITOR SYSTEM
      SENSORS
   TESTING AND ADJUSTING
      STANDARD VALUE TABLE FOR ENGINE RELATED PARTS
      STANDARD VALUE TABLE FOR CHASSIS RELATED PARTS
      STANDARD VALUE TABLE FOR ELECTRICAL PARTS
      TOOLS FOR TESTING, ADJUSTING, AND TROUBLESHOOTING
      MEASURING ENGINE SPEED
      MEASURING EXHAUST COLOR
      ADJUSTING VALVE CLEARANCE
      MEASURING BLOW-BY PRESSURE
      TESTING AND ADJUSTING FUEL INJECTION TIMING
      MEASURING ENGINE OIL PRESSURE
      TESTING AND ADJUSTING BELT TENSION FOR AIR CONDITIONER COMPRESSOR
      ADJUSTING FUEL CONTROL LEVER
      ADJUSTING ENGINE SPEED SENSOR
      TESTING AND ADJUSTING HYDRAULIC PRESSURE IN WORK EQUIPMENT, SWING, TRAVEL CIRCUIT
      TESTING AND ADJUSTING PC VALVE OUTPUT PRESSURE (SERVO PISTON INPUT PRESSURE)
      TESTING AND ADJUSTING LS VALVE OUTPUT PRESSURE (SERVO PISTON INPUT PRESSURE) AND LS DIFFERENTIAL PRESSURE
      TESTING AND ADJUSTING CONTROL PUMP CIRCUIT OIL PRESSURE
      TESTING SOLENOID VALVE OUTPUT PRESSURE
      ADJUSTING WORK EQUIPMENT, SWING PPC VALVE
      TESTING TRAVEL DEVIATION
      MEASURING OIL LEAKAGE
      RELEASING REMAINING PRESSURE IN HYDRAULIC CIRCUIT
      TESTING CLEARANCE OF SWING CIRCLE BEARING
      TESTING AND ADJUSTING TRACK SHOE TENSION
      MEASURING WEAR OF SPROCKET
      BLEEDING AIR
      TROUBLESHOOTING
   DISASSEMBLY AND ASSEMBLY
      METHOD OF USING MANUAL
      PRECAUTIONS WHEN CARRYING OUT OPERATION
      SPECIAL TOOL LIST
      SKETCHES OF SPECIAL TOOLS
      STARTING MOTOR
      ALTERNATOR
      AIR CONDITIONER COMPRESSOR
      CONDENSER
      ENGINE OIL COOLER
      FUEL INJECTION PUMP
      WATER PUMP
      NOZZLE HOLDER
      TURBOCHARGER
      THERMOSTAT
      CYLINDER HEAD
      ENGINE, MAIN PUMP
      HYDRAULIC COOLER
      RADIATOR, HYDRAULIC COOLER
      FUEL TANK
      CENTER SWIVEL JOINT
      SPROCKET
      TRAVEL MOTOR
      SWING MACHINERY, SWING MOTOR
      SWING MOTOR
      SWING MACHINERY
      REVOLVING FRAME
      SWING CIRCLE
      IDLER, RECOIL SPRING
      IDLER
      RECOIL SPRING
      TRACK ROLLER
      CARRIER ROLLER
      TRACK SHOE
      HYDRAULIC TANK
      CONTROL PUMP
      MAIN PUMP
      MAIN PUMP INPUT SHAFT OIL SEAL
      CONTROL VALVE
      LS SELECT VALVE
      PC-EPC VALVE
      PC VALVE
      LS VALVE
      SOLENOID VALVE
      PPC VALVE
      WORK EQUIPMENT RIGHT SIDE PPC VALVE
      WORK EQUIPMENT, SWING PPC VALVE
      TRAVEL PPC VALVE
      BOOM CYLINDER
      ARM CYLINDER
      BUCKET CYLINDER
      HYDRAULIC CYLINDER
      WORK EQUIPMENT
      BUCKET
      ARM
      BUCKET, ARM
      BOOM
      OPERATOR`S CAB
      COUNTERWEIGHT
      MONITOR
   MAINTENANCE STANDARD
      SWING MACHINERY
      SWING CIRCLE
      TRACK FRAME
      IDLER
      CARRIER ROLLER
      TRACK ROLLER
      SPROCKET
      TRACK SHOE
      HYDRAULIC PUMP
      CONTROL VALVE
      SWING MOTOR
      TRAVEL MOTOR
      CENTER SWIVEL JOINT
      WORK EQUIPMENT・SWING PPC VALVE
      TRAVEL PPC VALVE
      SERVICE PPC VALVE
      HYDRAULIC CYLINDER
      WORK EQUIPMENT
      DIMENSION OF WORK EQUIPMENT
   OTHER
      HYDRAULIC CIRCUIT DIAGRAM PC120-6 EXCEL SERIAL NO.57449-60967
      HYDRAULIC CIRCUIT DIAGRAM PC120-6 EXCEL SERIAL NO.60968 AND UP
      ELECTRICAL CIRCUIT GIAGRAM CHASSIS ELECTRICAL CIRCUIT DIAGRAM (1/2) PC120-6 EXCEL SERIAL NO.57499-60967
      ELECTRICAL CIRCUIT DIAGRAM CHASSIS ELECTRICAL CIRCUIT DIAGRAM (2/2) PC120-6 EXCEL SERIAL NO.57499-60967
      ELECTRICAL CIRCUIT DIAGRAM CHASSIS ELECTRICAL CIRCUIT DIAGRAM (1/2) PC120-6 EXCEL SERIAL NO.60968 AND UP
      ELECTRICAL CIRCUIT DIAGRAM CHASSIS ELECTRICAL CIRCUIT DIAGRAM (2/2) PC120-6 EXCEL SERIAL NO.60968 AND UP