Komatsu PC20R-8, PC25R-8 and PC27R-8 (SN from 10001) Crawler Excavators (Japan) Workshop Manual (SEBM010801)

Illustrated factory Workshop Manual for Komatsu Crawler Excavators Models PC20R-8, PC25R-8 and PC27R-8.

This manual will assist you in diagnosing, repairing, and adjusting for your crawler excavator.
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Covered Models (Japan):
   PC20R-8 (SN: 10001-)
   PC25R-8 (SN: 10001-)
   PC27R-8 (SN: 10001-)

Format: PDF, 473 pages
Language: English
Table of Contents:
   GENERAL
      GENERAL ASSEMBLY DRAWING
      SPECIFICATIONS
      WEIGHT TABLE
      LIST OF LUBRICANT AND WATER
   STRUCTURE AND FUNCTION
      POWER TRAIN
      SWING CIRCLE
      SWING MACHINERY
      TRACK FRAME
      RECOIL SPRING
      HYDRAULIC PIPING
      HYDRAULIC CIRCUIT DIAGRAM
      HYDRAULIC TANK
      HYDRAULIC PUMP
      CONTROL VALVE
      CLSS
      CENTER SWIVEL JOINT
      SWING MOTOR
      TRAVEL MOTOR
      VALVE CONTROL
      PPC VALVE
      WORK EQUIPMENT
      ELECTRICAL CIRCUIT DIAGRAM
      MACHINE MONITOR SYSTEM
   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 COMPRESSION PRESSURE
      TESTING AND ADJUSTING FUEL INJECTION TIMING
      MEASURING ENGINE OIL PRESSURE
      TESTING AND ADJUSTING ALTERNATOR FAN BELT TENSION
      MEASURING SPROCKET WEAR
      TESTING AND ADJUSTING TRACK SHOE TENSION
      TESTING AND ADJUSTING HYDRAULIC PRESSURE IN WORK EQUIPMENT,SWING,TRAVEL CIRCUIT
      TESTING AND ADJUSTING LS DIFFERENTIAL PRESSURE
      ADJUSTING PC VALVE
      TESTING AND ADJUSTING CONTROL CIRCUIT PRESSURE
      MEASURING OUTPUT PRESSURE OF PPC LOCK VALVE AND TRAVEL BOOST VALVE
      TESTING PPC VALVE OUTPUT PRESSURE AND SWING HOLDING BRAKE INLET PORT PRESSURE
      ADJUSTING WORK EQUIPMENT,SWING PPC VALVE
      TESTING AND ADJUSTING TRAVEL DEVIATION
      MEASURING OIL LEAKAGE INSIDE CYLINDER
      RELEASING REMAINING PRESSURE FROM HYDRAULIC CIRCUIT
      RELEASING REMAINING PRESSURE FROM HYDRAULIC TANK
      PRESSURIZING HYDRAULIC TANK
      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
      FUEL INJECTION PUMP
      NOZZLE HOLDER
      WATER PUMP
      THERMOSTAT
      ENGINE FRONT SEAL
      ENGINE REAR SEAL
      CYLINDER HEAD
      RADIATOR
      ENGINE,HYDRAULIC PUMP
      FUEL TANK
      DAMPER
      CENTER SWIVEL JOINT
      TRAVEL MOTOR
      SPROCKET
      SWING MOTOR,SWING MACHINERY
      SWING MOTOR(LMF16AB(FOR PC25R-8 AND PC27R-8)
      REVOLVING FRAME
      SWING CIRCLE
      IDLER
      RECOIL SPRING
      TRACK ROLLER
      CARRIER ROLLER
      RUBBER SHOE
      STEEL SHOE
      HYDRAULIC TANK
      HYDRAULIC COOLER
      HYDRAULIC PUMP
      MAIN PUMP(LPV-30(FOR PC25R-8 AND PC27R-8)
      CONTROL VALVE
      PPC VALVE
      BOOM CYLINDER
      ARM CYLINDER
      BUCKET CYLINDER
      BOOM SWING CYLINDER
      BLADE CYLINDER
      HYDRAULIC CYLNDER
      WORK EQUIPMENT
      BUCKET
      ARM
      BUCKET,ARM
      BOOM
      BOOM SWING BRACKET
      BLADE
      OPERATOR`S CAB
      CANOPY
      FLOOR FRAME
   MAINTENANCE STANDARD
      SWING CIRCLE
      SWING MACHINERY
      TRACK FRAME,RECOIL SPRING
      IDLER
      CARRIER ROLLER
      TRACK ROLLER
      TRACK SHOE
      HYDRAULIC PUMP
      HYDRAULIC PUMP(LPV30)
      CONTROL VALVE
      CENTER SWIVEL JOINT
      SWING MOTOR
      TRAVEL MOTOR
      PPC VALVE
      HYDRAULIC CYLINDER
      WORK EQUIPMENT
   OTHERS
      HYDRAULIC PIPING PC20R-8
      HYDRAULIC PIPING PC25R,27R-8
      HYDRAULIC CIRCUIT DIAGRAM PC20R-8
      HYDRAULIC CIRCUIT DIAGRAM PC25R-8
      HYDRAULIC CIRCUIT DIAGRAM PC27R-8
      CLSS 10A. OPERATION OF THE SYSTEM AS A WHOLE PC20R-8
      CLSS 10B. OPERATION OF THE SYSTEM AS A WHOLE PC25R,PC27R-8
      ELECTRICAL CIRCUIT DIAGRAM PC20R,25R,27R-8