








$25.00
Generation
5Language
EnglishModel of Truck
PC300-5, PC300HD-5, PC300LC-5, PC400-5, PC400HD-5, PC400LC-5Region
WorldWideTruck Class
PC300, PC400Illustrated factory Workshop Manual for Komatsu Crawler Excavators Models PC300-5, PC300HD-5, PC300LC-5, PC400-5, PC400HD-5 and PC400LC-5.
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:
PC300-5 (SN: 20001-)
PC300HD-5 (SN: 21401-)
PC300LC-5 (SN: 21401-; A70501-; K20001-)
PC400-5 (SN: 20001-)
PC400HD-5 (SN: 20603-)
PC400LC-5 (SN: 20603-; A70501-)
Format: PDF, 748 pages
Language: English
Table of Contents:
SAFETY
FOREWORD
HOW TO READ THE SHOP MANUAL
HOISTING INSTRUCTIONS
STANDARD TIGHTENING TORQUE
COATING MATERIALS
ELECTRIC WIRE CODE
CONVERSION TABLE
WEIGHT TABLE
LIST OF LUBRICANT AND WATER
STRUCTURE AND FUNCTION
POWER TRAIN
FINAL DRIVE
SWING CIRCLE
SWING MACHINERY
TRACK FRAME AND RECOIL SPRING
IDLER
TRACK ROLLER
CARRIER ROLLER
TRACK SHOE
HYDRAULIC PIPING
HYDRAULIC CIRCUIT DIAGRAM
HYDRAULIC TANK
OLSS (Open center Load Sensing System)
HYDRAULIC PUMP
LINE OIL FILTER
CONTROL VALVE
SWING MOTOR
CENTER SWIVEL JOINT
TRAVEL MOTOR
VALVE CONTROL
PPC VALVE
ACCUMULATOR
SAFETY LOCK VALVE
SOLENOID VALVE ASSEMBLY
SHUTTLE VALVE
BOOM HOLDING VALVE
HYDRAULIC CYLINDER
WORK EQUIPMENT
ELECTRICAL WIRING DIAGRAM
ELECTRICAL CIRCUIT DIAGRAM
ENGINE CONTROL SYSTEM
PEMC SYSTEM
EMACC (ELECTRONIC MONITOR AND CONTROL CONSOLE)
TESTING AND ADJUSTING
TABLE OF JUDGEMENT STANDARD VALUE
STANDARD VALUE TABLE FOR ELECTRICAL SYSTEM
TOOLS FOR TESTING, ADJUSTING, AND TROUBLESHOOTING
ADJUSTING VALVE CLEARANCE
MEASURING COMPRESSION PRESSURE
TESTING AND ADJUSTING FUEL INJECTION TIMING
TESTING AND ADJUSTING TRAVEL OF GOVERNOR MOTOR LEVER
ADJUSTING ENGINE SPEED SENSOR
TESTING AND ADJUSTING HYDRAULIC PRESSURE IN WORK EQUIPMENT, SWING, TRAVEL CIRCUIT
TESTING AND ADJUSTING CHARGING PUMP PRESSURE
TESTING AND ADJUSTING MAIN PUMP CONTROL PRESSURE
TESTING AND ADJUSTING TRAVEL DEVIATION
MEASURING STROKE OF SERVO PISTON
MEASURING OUTPUT PRESSURE OF PPC VALVE
ADJUSTING WORK EQUIPMENT, SWING PPC VALVE
TESTING PPC SHUTTLE VALVE
MEASURING SOLENOID VALVE OUTLET PORT PRESSURE
TESTING LOCATIONS CAUSING HYDRAULIC DRIFT OF WORK EQUIPMENT
BLEEDING AIR
RELEASING REMAINING PRESSURE IN HYDRAULIC CIRCUIT
RELEASING REMAINING PRESSURE IN HYDRAULIC CIRCUIT
TROUBLESHOOTING
DISASSEMBLY AND ASSEMBLY
METHOD OF USING MANUAL
PRECAUTIONS WHEN CARRYING OUT OPERATION
SPECIAL TOOL LIST
WEIGHT TABLE
TIGHTENING TORQUES AND STANDARD VALUES TABLE
STARTING MOTOR ASSEMBLY
ALTERNATOR ASSEMBLY
ENGINE OIL COOLER ASSEMBLY
FUEL INJECTION PUMP ASSEMBLY
WATER PUMP ASSEMBLY
NOZZLE HOLDER ASSEMBLY
TURBOCHARGER ASSEMBLY
THERMOSTAT ASSEMBLY
ENGINE FRONT OIL SEAL
ENGINE REAR OIL SEAL
GOVERNOR MOTOR ASSEMBLY
CYLINDER HEAD ASSEMBLY
AFTERCOOLER CORE ASSEMBLY
HYDRAULIC COOLER ASSEMBLY
RADIATOR, HYDRAULIC OIL COOLER ASSEMBLY
ENGINE, HYDRAULIC PUMP ASSEMBLY
DAMPER ASSEMBLY
CENTER SWIVEL JOINT ASSEMBLY
FINAL DRIVE ASSEMBLY
INSTALLATION OF FINAL DRIVE ASSEMBLY
ASSEMBLY OF FINAL DRIVE ASSEMBLY
TRAVEL MOTOR ASSEMBLY
SPROCKET ASSEMBLY
SWING MOTOR ASSEMBLY
SWING MACHINERY ASSEMBLY
REVOLVING FRAME ASSEMBLY
SWING CIRCLE ASSEMBLY
IDLER, RECOIL SPRING ASSEMBLY
CARRIER ROLLER ASSEMBLY
TRACK ROLLER ASSEMBLY
CHARGING PUMP ASSEMBLY
TRACK SHOE ASSEMBLY
HYDRAULIC PUMP ASSEMBLY
HYDRAULIC PUMP INPUT SHAFT OIL SEAL
CONTROL VALVE ASSEMBLY
MAIN RELIEF VALVE ASSEMBLY
TVC VALVE ASSEMBLY
SERVO ASSEMBLY
CO-NC VALVE ASSEMBLY
WORK EQUIPMENT PPC VALVE ASSEMBLY
TRAVEL PPC VALVE ASSEMBLY
BOOM HOLDING VALVE ASSEMBLY
PPC SHUTTLE VALVE ASSEMBLY
BOOM CYLINDER ASSEMBLY
ARM CYLINDER ASSEMBLY
BUCKET CYLINDER ASSEMBLY
BOTTOM DUMP CYLINDER ASSEMBLY
HYDRAULIC CYLINDER ASSEMBLY
WORK EQUIPMENT ASSEMBLY
BUCKET ASSEMBLY
ARM ASSEMBLY
ARM, BUCKET ASSEMBLY .
BOOM ASSEMBLY
OPERATOR’S CAB ASSEMBLY
COUNTERWEIGHT
THROTTLE CONTROLLER
PUMP CONTROLLER ASSEMBLY
MONITOR PANEL ASSEMBLY
PROCEDURE FOR FLUSHING HYDRAULIC CIRCUIT
MAINTENANCE STANDARD
FINAL DRIVE
SWING MACHINERY
SWING CIRCLE
TRACK FRAME AND RECOIL SPRING
IDLER
TRACK ROLLER
CARRIER ROLLER
TRACK SHOE
CHARGING PUMP AND RELIEF VALVE
CONTROL VALVE
TRAVEL SHUTTLE VALVE
SWING MOTOR
TRAVEL MOTOR
PPC VALVE
PPC SHUTTLE VALVE
BOOM HOLDING VALVE
HYDRAULIC CYLINDER
WORK EQUIPMENT
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:
PC300-5 (SN: 20001-)
PC300HD-5 (SN: 21401-)
PC300LC-5 (SN: 21401-; A70501-; K20001-)
PC400-5 (SN: 20001-)
PC400HD-5 (SN: 20603-)
PC400LC-5 (SN: 20603-; A70501-)
Format: PDF, 748 pages
Language: English
Table of Contents:
SAFETY
FOREWORD
HOW TO READ THE SHOP MANUAL
HOISTING INSTRUCTIONS
STANDARD TIGHTENING TORQUE
COATING MATERIALS
ELECTRIC WIRE CODE
CONVERSION TABLE
WEIGHT TABLE
LIST OF LUBRICANT AND WATER
STRUCTURE AND FUNCTION
POWER TRAIN
FINAL DRIVE
SWING CIRCLE
SWING MACHINERY
TRACK FRAME AND RECOIL SPRING
IDLER
TRACK ROLLER
CARRIER ROLLER
TRACK SHOE
HYDRAULIC PIPING
HYDRAULIC CIRCUIT DIAGRAM
HYDRAULIC TANK
OLSS (Open center Load Sensing System)
HYDRAULIC PUMP
LINE OIL FILTER
CONTROL VALVE
SWING MOTOR
CENTER SWIVEL JOINT
TRAVEL MOTOR
VALVE CONTROL
PPC VALVE
ACCUMULATOR
SAFETY LOCK VALVE
SOLENOID VALVE ASSEMBLY
SHUTTLE VALVE
BOOM HOLDING VALVE
HYDRAULIC CYLINDER
WORK EQUIPMENT
ELECTRICAL WIRING DIAGRAM
ELECTRICAL CIRCUIT DIAGRAM
ENGINE CONTROL SYSTEM
PEMC SYSTEM
EMACC (ELECTRONIC MONITOR AND CONTROL CONSOLE)
TESTING AND ADJUSTING
TABLE OF JUDGEMENT STANDARD VALUE
STANDARD VALUE TABLE FOR ELECTRICAL SYSTEM
TOOLS FOR TESTING, ADJUSTING, AND TROUBLESHOOTING
ADJUSTING VALVE CLEARANCE
MEASURING COMPRESSION PRESSURE
TESTING AND ADJUSTING FUEL INJECTION TIMING
TESTING AND ADJUSTING TRAVEL OF GOVERNOR MOTOR LEVER
ADJUSTING ENGINE SPEED SENSOR
TESTING AND ADJUSTING HYDRAULIC PRESSURE IN WORK EQUIPMENT, SWING, TRAVEL CIRCUIT
TESTING AND ADJUSTING CHARGING PUMP PRESSURE
TESTING AND ADJUSTING MAIN PUMP CONTROL PRESSURE
TESTING AND ADJUSTING TRAVEL DEVIATION
MEASURING STROKE OF SERVO PISTON
MEASURING OUTPUT PRESSURE OF PPC VALVE
ADJUSTING WORK EQUIPMENT, SWING PPC VALVE
TESTING PPC SHUTTLE VALVE
MEASURING SOLENOID VALVE OUTLET PORT PRESSURE
TESTING LOCATIONS CAUSING HYDRAULIC DRIFT OF WORK EQUIPMENT
BLEEDING AIR
RELEASING REMAINING PRESSURE IN HYDRAULIC CIRCUIT
RELEASING REMAINING PRESSURE IN HYDRAULIC CIRCUIT
TROUBLESHOOTING
DISASSEMBLY AND ASSEMBLY
METHOD OF USING MANUAL
PRECAUTIONS WHEN CARRYING OUT OPERATION
SPECIAL TOOL LIST
WEIGHT TABLE
TIGHTENING TORQUES AND STANDARD VALUES TABLE
STARTING MOTOR ASSEMBLY
ALTERNATOR ASSEMBLY
ENGINE OIL COOLER ASSEMBLY
FUEL INJECTION PUMP ASSEMBLY
WATER PUMP ASSEMBLY
NOZZLE HOLDER ASSEMBLY
TURBOCHARGER ASSEMBLY
THERMOSTAT ASSEMBLY
ENGINE FRONT OIL SEAL
ENGINE REAR OIL SEAL
GOVERNOR MOTOR ASSEMBLY
CYLINDER HEAD ASSEMBLY
AFTERCOOLER CORE ASSEMBLY
HYDRAULIC COOLER ASSEMBLY
RADIATOR, HYDRAULIC OIL COOLER ASSEMBLY
ENGINE, HYDRAULIC PUMP ASSEMBLY
DAMPER ASSEMBLY
CENTER SWIVEL JOINT ASSEMBLY
FINAL DRIVE ASSEMBLY
INSTALLATION OF FINAL DRIVE ASSEMBLY
ASSEMBLY OF FINAL DRIVE ASSEMBLY
TRAVEL MOTOR ASSEMBLY
SPROCKET ASSEMBLY
SWING MOTOR ASSEMBLY
SWING MACHINERY ASSEMBLY
REVOLVING FRAME ASSEMBLY
SWING CIRCLE ASSEMBLY
IDLER, RECOIL SPRING ASSEMBLY
CARRIER ROLLER ASSEMBLY
TRACK ROLLER ASSEMBLY
CHARGING PUMP ASSEMBLY
TRACK SHOE ASSEMBLY
HYDRAULIC PUMP ASSEMBLY
HYDRAULIC PUMP INPUT SHAFT OIL SEAL
CONTROL VALVE ASSEMBLY
MAIN RELIEF VALVE ASSEMBLY
TVC VALVE ASSEMBLY
SERVO ASSEMBLY
CO-NC VALVE ASSEMBLY
WORK EQUIPMENT PPC VALVE ASSEMBLY
TRAVEL PPC VALVE ASSEMBLY
BOOM HOLDING VALVE ASSEMBLY
PPC SHUTTLE VALVE ASSEMBLY
BOOM CYLINDER ASSEMBLY
ARM CYLINDER ASSEMBLY
BUCKET CYLINDER ASSEMBLY
BOTTOM DUMP CYLINDER ASSEMBLY
HYDRAULIC CYLINDER ASSEMBLY
WORK EQUIPMENT ASSEMBLY
BUCKET ASSEMBLY
ARM ASSEMBLY
ARM, BUCKET ASSEMBLY .
BOOM ASSEMBLY
OPERATOR’S CAB ASSEMBLY
COUNTERWEIGHT
THROTTLE CONTROLLER
PUMP CONTROLLER ASSEMBLY
MONITOR PANEL ASSEMBLY
PROCEDURE FOR FLUSHING HYDRAULIC CIRCUIT
MAINTENANCE STANDARD
FINAL DRIVE
SWING MACHINERY
SWING CIRCLE
TRACK FRAME AND RECOIL SPRING
IDLER
TRACK ROLLER
CARRIER ROLLER
TRACK SHOE
CHARGING PUMP AND RELIEF VALVE
CONTROL VALVE
TRAVEL SHUTTLE VALVE
SWING MOTOR
TRAVEL MOTOR
PPC VALVE
PPC SHUTTLE VALVE
BOOM HOLDING VALVE
HYDRAULIC CYLINDER
WORK EQUIPMENT
General
Generation
5Language
EnglishModel of Truck
PC300-5, PC300HD-5, PC300LC-5, PC400-5, PC400HD-5, PC400LC-5Region
WorldWideTruck Class
PC300, PC400Type of Document
Workshop ManualType of Truck
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