HYDRAULIC EXCAVATOR PC300 PC300LC-5 MIGHTY PC300HD-5 PC400 PC400LC-5 MIGHTY PC400HD-5 Shop Manual

COVER
CONTENTS
10 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
ELECTRICAL WIRING DIAGRAM
ELECTRICAL CIRCUIT DIAGRAM
ENGINE CONTROL SYSTEM
PEMC SYSTEM
EMACC (ELECTRONIC MONITOR AND CONTROL CONSOLE)
20 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
TROUBLESHOOTING
30 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
ALTERNATOR
ENGINE OIL COOLER
FUEL INJECTION PUMP
WATER PUMP
NOZZLE HOLDER
TURBOCHARGER
THERMOSTAT
ENGINE FRONT OIL SEAL
ENGINE REAR OIL SEAL
GOVERNOR MOTOR
CYLINDER HEAD
AFTERCOOLER CORE
HYDRAULIC COOLER
RADIATOR, HYDRAULIC OIL COOLER
ENGINE, HYDRAULIC PUMP
DAMPER
CENTER SWIVEL JOINT
FINAL DRIVE
TRAVEL MOTOR
SPROCKET
SWING MOTOR
SWING MACHINERY
REVOLVING FRAME
SWING CIRCLE
IDLER, RECOIL SPRING
RECOIL SPRING
TRACK ROLLER
CARRIER ROLLER
TRACK SHOE
CHARGING PUMP
HYDRAULIC PUMP
HYDRAULIC PUMP INPUT SHAFT OIL SEAL
CONTROL VALVE
MAIN RELIEF VALVE
TVC VALVE
CO-NC VALVE
SERVO VALVE
WORK EQUIPMENT PPC VALVE
TRAVEL PPC VALVE
BOOM HOLDING VALVE
PPC SHUTTLE VALVE
BOOM CYLINDER
ARM CYLINDER
BUCKET CYLINDER
BOTTOM DUMP CYLINDER
HYDRAULIC CYLINDER
WORK EQUIPMENT
BUCKET
ARM
ARM, BUCKET
BOOM
OPERATOR’S CAB
COUNTERWEIGHT
ENGINE THROTTLE CONTROLLER
PUMP CONTROLLER
MONITOR PANEL
PROCEDURE FOR FLUSHING HYDRAULIC CIRCUIT
40 MAINTENANCE STANDARD
FINAL DRIVE
SWING MACHINERY
SWING CIRCLE
TRACK FRAME AND RECOIL SPRING
IDLER
TRACK ROLLER
CARRIER ROLLER
TRACK SHOE
HYDRAULIC PUMP
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