Komatsu D20AG-7, D20P(G,L,LL)-7, D21A(G)-7, D21P(G)-7, D21QG-7 and D21S-7 Crawler Dozers (Japan) Workshop Manual (SEBM001408)

Illustrated factory Workshop Manual for Komatsu Crawler Dozers Models D20AG-7, D20P-7, D20PG-7-A, D20PL-7, D20PLL-7, D21A-7, D21AG-7, D21P-7, D21PG-7-A, D21QG-7 and D21S-7.

This manual will assist you in diagnosing, repairing, and adjusting for your crawler dozer.
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Covered Models (Japan):
   D20AG-7 (SN: 75001-)
   D20P-7 (SN: 75001-)
   D20PG-7-A (SN: 75001-)
   D20PL-7 (SN: 62001-)
   D20PLL-7 (SN: 62001-)
   D21A-7 (SN: 75001-; 80060-)
   D21AG-7 (SN: 75001-)
   D21P-7 (SN: 75001-; 80060-; 80228-)
   D21PG-7-A (SN: 75001-)
   D21QG-7 (SN: 61001-)
   D21S-7 (SN: 61001-)

Format: PDF, 716 pages
Language: English
Table of Contents:
   GENERAL
      SPECIFICATION DRAWINGS
      SPECIFICATIONS
      WEIGHT TABLE
      FUEL, COOLANT AND LUBRICANTS
   STRUCTURE AND FUNCTION
      ENGINE CONTROL
      POWER TRAIN SYSTEM
      POWER TRAIN SKELETON
      POWER TRAIN HYDRAULIC PIPING
      POWER TRAIN HYDRAULIC CIRCUIT DIAGRAM
      POWER TRAIN HYDRAULIC SYSTEM
      MAIN CLUTCH CONTROL
      MAIN CLUTCH
      TRANSMISSION
      DAMPER AND UNIVERSAL JOINT
      TRANSMISSION CONTROL
      TRANSMISSION PUMP
      HYDROSHIFT TRANSMISSION
      TRANSMISSION CONTROL VALVE
      STEERING CLUTCH AND BRAKE CONTROL
      STEERING MAIN RELIEF VALVE
      STEERING CYLINDER
      BRAKE CYLINDER
      PPC VALVE
      BEVEL GEAR SHAFT AND STEERING CLUTCH
      STEERING BRAKE
      FINAL DRIVE
      TRACK FRAME
      MAIN FRAME AND SUSPENSION
      HYDRAULIC PIPING
      HYDRAULIC CIRCUIT DIAGRAM
      HYDRAULIC CIRCUIT SYSTEM
      HYDRAULIC CONTROL
      HYDRAULIC TANK AND FILTER
      ANGLE SELECTOR VALVE
      HYDRAULIC CONTROL VALVE
      OPERATION OF WORK EQUIPMENT CONTROL CIRCUIT
      STRAIGHT TILTDOZER
      POWER ANGLE AND TILTDOZER
      BUCKET AND LINK
      ELECTRICAL WIRING DIAGRAM
      ENGINE CONTROL
      MONITOR SYSTEM
      SENSORS
   TESTING AND ADJUSTING
      STANDARD VALUE TABLE FOR ENGINE
      STANDARD VALUE TABLE FOR CHASSIS
      STANDARD VALUE TABLE FOR ELECTRICAL SYSTEM
      TABLE OF TOOLS FOR TESTING, ADJUSTING AND TROUBLESHOOTING
      MEASURING ENGINE SPEED
      MEASURING EXHAUST COLOR
      ADJUSTING VALVE CLEARANCE
      MEASURING COMPRESSION PRESSURE
      MEASURING BLOW-BY
      TESTING AND ADJUSTING FUEL INJECTION TIMING
      BLEEDING AIR FROM FUEL CIRCUIT
      MEASURING ENGINE OIL PRESSURE
      TESTING AND ADJUSTING FAN BELT TENSION
      ADJUSTING FUEL CONTROL LINKAGE
      ADJUSTING DECELEREATOR PEDAL LINKAGE
      MEASURING POWER TRAIN OIL PRESSURE
      ADJUSTING PPC VALVE
      BLEEDING AIR FROM STEERING CIRCUIT
      MEASURING AND ADJUSTING WORK EQUIPMENT MAIN RELIEF PRESSURE
      BLEEDING AIR FROM HYDRAULIC CYLINDERS
      BLEEDING AIR FROM ANGLE CYLINDER CIRCUIT
      ADJUSTING FUEL CONTROL LEVER
      PROCEDURE FOR ADJUSTING ENGINE STOP MOTOR CABLE
      ADJUSTING MAIN CLUTCH CONTROL LINKAGE
      ADJUSTING TRANSMISSION CONTROL LINKAGE
      ADJUSTING TRAVEL OF INCHING PEDAL
      ADJUSTING BRAKE PEDAL, BRAKE CYLINDER
      ADJUSTING BRAKE LINING CLEARANCE
      TROUBLESHOOTING
   DISASSEMBLY AND ASSEMBLY
      METHOD OF USING MANUAL
      PRECAUTIONS WHEN HANDLING PIPING DURING DISASSEMBLY
      PRECAUTIONS WHEN CARRYING OUT OPERATION
      STARTING MOTOR
      ALTERNATOR
      FUEL INJECTION PUMP
      WATER PUMP
      THERMOSTAT
      NOZZLE HOLDER
      CYLINDER HEAD
      RADIATOR GUARD
      RADIATOR
      ENGINE
      DAMPER (D21-7)
      MAIN CLUTCH (D20-7)
      TRANSMISSION (D20-7)
      HYDROSHIFT TRANSMISSION (D21-7)
      STEERING PUMP
      MODULATING VALVE AND PUMP (D21-7)
      MODULATING VALVE (D21-7)
      SELECTOR AND INCHING VALVE (D21-7)
      MAIN RELIEF VALVE
      STEERING PPC VALVE
      STEERING CLUTCH
      BEVEL GEAR SHAFT AND BEVEL GEAR
      FINAL DRIVE
      FINAL DRIVE FIRST PINION
      FINAL DRIVE
      POWER TRAIN OIL COOLER
      TRACK FRAME
      RECOIL SPRING
      IDLER
      CARRIER ROLLER
      IDLER
      CARRIER ROLLER
      TRACK ROLLER
      TRACK SHOE
      HYDRAULIC PUMP
      HYDRAULIC CONTROL VALVE
      BLADE LIFT CYLINDER
      BLADE TILT CYLINDER
      BLADE ANGLE CYLINDER
      BUCKET LIFT CYLINDER (D21S, QG-7)
      BUCKET DUMP CYLINDER (D21S, QG-7)
      HYDRAULIC CYLINDER
      WORK EQUIPMENT
      BLADE
      WORK EQUIPMENT (D21S, QG-7)
      BUCKET (D21S, QG-7)
      OPERATOR`S SEAT FRAME
   MAINTENANCE STANDARD
      MAIN CLUTCH
      TRANSMISSION
      DAMPER AND UNIVERSAL JOINT
      HYDROSHIFT TRANSMISSION
      TRANSMISSION CONTROL VALVE
      MAIN CLUTCH AND STEERING PUMP
      STEERING MAIN RELIEF VALVE
      TRANSMISSION AND STEERING PUMP
      PPC VALVE
      STEERING CYLINDER
      BEVEL GEAR SHAFT
      STEERING CLUTCH
      STEERING BRAKE
      FINAL DRIVE
      TRACK FRAME
      IDLER CUSHION
      IDLER
      TRACK ROLLER
      CARRIER ROLLER
      TRACK SHOE (LUBRICATED TRACK LINK) D20PL, PLL-7, D21A-7, D20P-7A
      TRACK SHOE (DRY TYPE TRACK LINK) D20PL, PLL-7, D21A-7, D20P-7A
      TRACK SHOE (LUBRICATED TRACK LINK) D21S-7
      TRACK SHOE (DRY TYPE TRACK LINK) D21S-7
      RUBBER CRAWLER
      HYDRAULIC PUMP
      HYDRAULIC CONTROL VALVE
      HYDRAULIC CYLINDER
      STRAIGHT TILTDOZER
      POWER ANGLE AND TILTDOZER
      BUCKET AND LINK
   OTHERS
      TRIMMING DOZER