Komatsu PC20-6 (SN:24001-), PC30-6 (SN:10001-) and PC40-6 (SN:10001-) Crawler Excavators (Japan) Workshop Manual (SEBM020R0604)

Illustrated factory Workshop Manual for Komatsu Crawler Excavators Models PC20-6, PC30-6 and PC40-6.

This manual will assist you in diagnosing, repairing, and adjusting for your crawler excavator.
You can use a Windows, Mac, or Android device to view this manual. You only need to have a PDF reader installed.

Covered Models (Japan):
   PC20-6 (SN: 24001-)
   PC30-6 (SN: 10001-)
   PC40-6 (SN: 10001-)

Format: PDF, 345 pages
Language: English
Table of Contents:
   STRUCTURE AND FUNCTION
      POWER TRAIN
      SWING CIRCLE
      SWING MACHINERY
      SPROCKET
      TRACK FRAME AND RECOIL SPRING
      IDLER
      TRACK ROLLER
      TRACK SHOE
      HYDRAULIC PIPING
      HYDRAULIC CIRCUIT SCHEMATICS
      HYDRAULIC CIRCUIT DIAGRAM
      HYDRAULIC TANK
      HYDRAULIC TRIPLE GEAR PUMP
      SPOOL CONTROL VALVE
      CENTER SWIVEL JOINT
      SWING MOTOR
      TRAVEL MOTOR (WITH REDUCTION GEAR)
      VALVE CONTROL
      WORK EQUIPMENT
      ELECTRICAL CIRCUIT DIAGRAM
   TESTING AND ADJUSTING
      TABLE OF JUDGEMENT STANDARD VALVE
      TESTING AND ADJUSTING TOOL LIST
      ADJUSTING VALVE CLEARANCE (PC20,30-6)
      ADJUSTING VALVE CLEARANCE (PC40-6)
      MEASURING COMPRESSION PRESSURE
      TESTING AND ADJUSTING FUEL INJECTION TIMING (PC20,30-6)
      TESTING AND ADJUSTING FUEL INJECTION TIMING (PC40-6)
      BLEEDING AIR FROM HYDRAULIC CYLINDERS
      MEASURING AND ADJUSTING HYDRAULIC PRESSURE
      MEASURING HYDRAULIC PRESSURE OF ACCELERATION CIRCUIT (PC30,40-6)
      MEASURING DISCHARGE AMOUNT OF PUMP
      MEASURING OIL LEAKAGE FROM SWING, TRAVEL MOTORS
      TESTING FOR LEAKAGE OF OIL FROM CENTER SWIVEL JOINT (PC20-6)
      TESTING FOR LEAKAGE OF OIL FROM CENTER SWIVEL JOINT (PC30-6)
      TESTING FOR LEAKAGE OF OIL FROM CENTER SWIVEL JOINT (PC40-6)
      MEASURING LEAKAGE FROM HYDRAULIC CYLINDERS
      TROUBLESHOOTING
   DISASSEMBLY AND ASSEMBLY
      METHOD OF READING MANUAL
      TABLE OF SPECIAL TOOLS
      STARTING MOTOR
      ALTERNATOR
      WATER PUMP
      FUEL INJECTION PUMP
      NOZZLE HOLDER
      CYLINDER HEAD
      HYDRAULIC OIL COOLER
      RADIATOR
      ENGINE
      SWING CIRCLE
      SWING MACHINERY
      REVOLVING FRAME
      TRACK SHOE
      TRACK ROLLER
      IDLER, RECOIL SPRING
      RECOIL SPRING
      SPROCKET
      HYDRAULIC PUMP
      SPOOL CONTROL VALVE
      SWING MOTOR
      CENTER SWIVEL JOINT
      TRAVEL MOTOR
      BOOM CYLINDER
      ARM CYLINDER
      BUCKET CYLINDER
      BLADE CYLINDER
      BOOM SWING CYLINDER
      HYDRAULIC CYLINDER
      REPLACING HYDRAULIC CYLINDER PISTON RING
      WORK EQUIPMENT
      BLADE
      BUCKET
      ARM
      ARM, BUCKET
      BOOM
      FLOOR FRAME
   MAINTENANCE STANDARD
      SWING CIRCLE
      SWING MACHINERY
      SPROCKET
      TRACK FRAME AND RECOIL SPRING
      IDLER
      TRACK ROLLER
      TRACK SHOE
      TRIPLE GEAR PUMP
      CENTER SWIVEL JOINT
      SWING MOTOR
      TRAVEL MOTOR BRAKE VALVE
      SPOOL CONTROL VALVE
      HYDRAULIC CYLINDER
      WORK EQUIPMENT