Komatsu Excavator PC250-6 PC250LC-6 service & repair manual

Description Komatsu Excavator PC250-6 PC250LC-6 service & repair manual

Komatsu Hydraulic Excavator PC250-6, PC250LC-6 pdf workshop service manual

Serial numbers:
10001 and up

Technical data, specifications, testing, adjusting, troubleshooting, maintenance, electrical wiring diagrams, hydraulic schematics, assembly, disassembly, removal, installation instructions and other information

MANUAL CONTENT:
GENERAL
SPECIFICATION DIMENSION DRAWINGS
SPECIFICATIONS
WEIGHT TABLE
FUEL,COOLANT AND LUBRICANTS

STRUCTURE AND FUNCTION
ENGINE RELATED PARTS
REDIATOR
RADIATOR-OIL COOLER-AFTERCOOLER
POWER TRAIN
FINAL DRIVE
SWING CIRCLE
SWING MACHINERY
TRACK FRAME,RECOIL SPRING
TRACK SHOE
HYDRAULIC PIPING DRAWING
HYDRAULIC TANK
HYDRAULIC PUMP
LINE OIL FILTER
CONTROL VALVE
SELF-REDUCING PRESSURE VALVE
CLSS
SWING MOTOR
CENTER SWIVEL JOINT
TRAVEL MOTOR
VALVE CONTROL
WORK EQUIPMENT・SWING PPC VALVE
TRAVEL PPC VALVE
SERVICE PPC VALVE
SAFETY LOCK VALVE
PPC ACCUMULATOR
STRAIGHT-TRAVEL SYSTEM
SOLENOID VALVE
BOOM HOLDING VALVE
ADDITIONAL FILTER FOR BREAKER
WORK EQUIPMENT
AIR CONDITIONER
ACTUAL ELECTRIC WIRING DIAGRAM
ENGINE CONTROL SYSTEM
ELECTRONIC CONTROL SYSTEM
MONITOR SYSTEM
SENSORS
FRONT WINDOW AUTO PULL-UP SYSTEM

TESTING AND ADJUSTING
TABLE OF JUDGEMENT STANDARD VALUE
STANDARD VALUE TABLE FOR ELECTRICAL PARTS
TOOLS FOR TESTING,ADJUSTING,AND TROUBLESHOOTING
MEASURING ENGINE SPEED
MEASURING EXHAUST GAS COLOR
ADJUSTING VALVE CLEARANCE
MEASURING COMPRESSION PRESSURE
MEASURING BLOW-BY PRESSURE
TESTING AND ADJUSTING FUEL INJECTION TIMING
MEASURING ENGINE OIL PRESSURE
TESTING AND ADJUSTING ALTERNATOR BELT TENSION
TESTING AND ADJUSTING BELT TENSION FOR AIR CONDITIONER COMPRESSOR
MEASURING SPEED SENSOR
TESTING AND ADJUSTING GOVERNOR MOTOR LEVER STROKE
TESTING AND ADJUSTING HYDRAULIC PRESSURE IN WORK EPUIPMENT,SWING,TRAVEL,CIRCUIT
TESTING AND ADJUSTING PC VALVE OUTPUT PRESSURE (SERVO PISTON INPUIT PRESSURE)
TESTING AND ADJUSTING LS VALVE OUTPUT PRESSURE (SERVO PISTON INPUT PRESSURE)AND LS DIFFERENTIAL PRESSURE
TESTING AND ADJUSTING CONTROL CIRCUIT OIL PRESSURE
TESTING SOLENOID VALVE OUTPUT PRESSURE
MEASURING PPC VALVE OUTPUT PRESSURE
ADJUSTING WORK EQUIPMENT・SWING PPC VALVE
TESTING TRAVEL DEVIATION
TESTING LOCATIONS CAUSING HYDRAULIC DRIFT OF WORK EQUIPMENT
MEASURING OIL LEAKAGE
RELEASING REMAINING PRESSURE IN HYDRAULIC CIRCUIT
TESTING CLEARANCE OF SWING CIRCLE BEARING
TESTING AND ADJUSTING TRACK SHOE TENSION
BLEEDING AIR

TROUBLESHOOTING
POINTS TO REMEMBER WHEN TROUBLESHOOTING
SEQUENCE OF EVENTS IN TROUBLESHOOTING
POINTS TO REMEMBER WHEN CARRYING OUT MAINTENANCE
CHECKS BEFORE TROUBLESHOOTING
CONNECTOR TYPES AND MOUNTING LOCATIONS
CONNECTION TABLE FOR CONNECTOR PIN NUMBERS
EXPLANATION OF CONTROL MECHANISM FOR ELECTRICAL SYSTEM
DISPLAY METHOD AND SPECIAL FUNCTIONS OF MONITOR PANEL
METHOD OF USING JUDGEMENT TABLE
METHOD OF USING TROUBLESHOOTING CHARTS
DETAILS OF TROUBLESHOOTING AND TROUBLESHOOTING PROCEDURE
SERVICE CODE TABLE
TROUBLESHOOTING OF COMMUNICATION ABNORMALITY SYSTEM (N MODE)
TROUBLESHOOTING OF ENGINE THROTTLE PUMP CONTROLLER (GOVERNOR CONTROL SYSTEM) (E MODE)
TROUBLESHOOTING OF ENGINE SYSTEM (S MODE)
TROUBLESHOOTING OF ENGINE THROTTLE PUMP CONTROLLER (PUMP CONTROL SYSTEM) (C MODE)
TROUBLESHOOTING OF ENGINE THROTTLE PUMP CONTROLLER (INPUT SIGNAL SYSTEM) (F MODE)
TROUBLESHOOTING OF HYDRAULIC AND MECHANICAL SYSTEM (H MODE)
TROUBLESHOOTING OF MACHINE MONITOR SYSTEM (M MODE)

DISASSEMBLY AND ASSEMBLY
METHOD OF USING MANUAL
PRECAUTIONS WHEN CARRYING OUT OPERATION
SPECIAL TOOL LIST
SKETCHES OF SPECIAL TOOLS
STARTING MOTOR
ALTERNATOR
AIR CONDITIONER COMPRESSOR
AIR CONDITIONER CONDENSER
DRY RECEIVER
ENGINE OIL COOLER CORE
FUEL INJECTION PUMP
WATER PUMP
NOZZLE HOLDER
TURBOCHARGER
THERMOSTAT
GOVERNOR MOTOR
CYLINDER HEAD
HYDRAULIC OIL COOLER
RADIATOR,HYDRAULIC OIL COOLER
ENGINE,MAIN PUMP
DAMPER
FUEL TANK
CENTER SWIVEL JOINT
FINAL DRIVE
TRAVEL MOTOR
SPROCKET
SWING MOTOR AND SWING MACHINERY
SWING MACHINERY
SWING MOTOR
REVOLVING FRAME
SWING CIRCLE
IDLER,RECOIL SPRING
IDLER
RECOIL SPRING
TRACK ROLLER
CARRIER ROLLER
TRACK SHOE
HYDRAULIC TANK
MAIN PUMP
MAIN PUMP INPUT SHAFT OIL SEAL
CONTROL VALVE
PUMP MERGE-DIVIDER VALVE
MAIN RELIEF VALVE
PC VALVE
LS VALVE
PC, LS-EPC VALVE
SOLENOID VALVE
WORK EQUIPMENT SWING PPC VALVE
TEAVEL PPC VALVE
BOOM LOCK VALVE
BOOM CYLINDER
ARM CYLINDER
BUCKET CYLINDER
HYDRAULIC CYLINDER
WORK EQUIPMENT
BUCKET
ARM
BUCKET-ARM
BOOM
OPERATOR'S CAB
COUNTERWEIGHT
ENGINE THROTTLE PUMP CONTROLLER
CONTROL STAND CASE
MONITOR

MAINTENANCE STANDARD
SWING MACHINERY
FINAL DRIVE
SWING CIRCLE
TRACK FRAME AND RECOIL SPRING
IDLER
CARRIER ROLLER
TRACK ROLLER
TRACK SHOE
HYDRAULIC PUMP
CONTROL VALVE
SELF-REDUCING PRESSURE VALVE
SWING MOTOR
TRAVEL MOTOR
WORK EQUIPMENT SWING PPC VALVE
TRAVEL PPC VALVE
SERVICE PPC VALVE
CENTER SWIVEL JOINT
BOOM HOLDING VALVE
HYDRAULIC CYLINDER
WORK EQUIPMENT
DIMENSION OF WORK EQUIPMENT

OTHERS
HYDRAULIC CIRCUIT DIAGRAM
ELECTRICAL CIRCUIT DIAGRAM

Engine SA6D102E-1 workshop service manual