Komatsu Excavator PC228US-2 PC228USLC-1 PC228USLC-2 service & repair manual

Description Komatsu Excavator PC228US-2 PC228USLC-1 PC228USLC-2 service & repair manual

Komatsu Hydraulic Excavator PC228US-2, PC228USLC-1, PC228USLC-2 pdf workshop service manual + operation & maintenance manual

Serial numbers:
PC228USLC-1 11001 and up
PC228US-2 15001 and up
PC228USLC-2 15001 and up

Specifications, technical documentation, troubleshooting, testing, electrical wiring diagrams, hydraulic schematics, adjusting, 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
RADIATOR – OIL COOLER – AFTERCOOLER
POWER TRAIN
FINAL DRIVE
SWING CIRCLE
SWING MACHINERY
TRACK FRAME – RECOIL SPRING
TRACK SHOE
HYDRAULIC PIPING DRAWING
HYDRAULIC CIRCUIT DIAGRAM
HYDRAULIC TANK
HYDRAULIC PUMP
CONTROL VALVE
SELF-REDUCING PRESSURE VALVE
SAFETY-SUCTION VALVE FOR SERVICE VALVE
SWING MOTOR
CENTER SWIVEL JOINT
TRAVEL MOTOR
VALVE CONTROL
WORK EQUIPMENT – SWING PPC VALVE
TRAVEL PPC VALVE
PPC ACCUMULATOR
STRAIGHT-TRAVEL SYSTEM
LS-EPC VALVE
SOLENOID VALVE
BOOM HOLDING VALVE
WORK EQUIPMENT
ACTUAL ELECTRIC WIRING DIAGRAM
ELECTRICAL CIRCUIT DIAGRAM
ENGINE CONTROL SYSTEM
ELECTRONIC CONTROL SYSTEM
MACHINE MONITORING 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 AIR CONDITIONER COMPRESSOR BELT TENSION
MEASURING SPEED SENSOR
ADJUSTING ENGINE STOP SOLENOID LINKAGE
ADJUSTING ACCELERATOR ACTUATOR CABLE
TESTING AND ADJUSTING HYDRAULIC PRESSURE IN WORK EQUIPMENT,SWING,TRAVEL CIRCUIT
TESTING AND ADJUSTING OUTPUT PRESSURE OF PC VALVE (SERVO PISTON INPUT PRESSURE)
TESTING AND ADJUSTING LS VALVE OUTPUT PRESSURE (SERVO PISTON INPUT PRESSURE) AND LS DIFFERENTIAL PRESSURE
MEASURING CONTROL CIRCUIT OIL PRESSURE (REDUCED PUMP DISCHARGE SELF-REDUCING PRESSURE)
TESTING SOLENOID VALVE OUTPUT PRESSURE
MEASURING PPC VALVE OUTPUT PRESSURE
ADJUSTING WORK EQUIPMENT・SWING PPC VALVE
TESTING TRAVEL DEVIATION
CHECKING LOCATION OF CAUSE OF HYDRAULIC DRIFT OF WORK EQUIPMENT
MEASURING OIL LEAKAGE OF SWING,TRAVEL MOTOR
RELEASING REMAINING PRESSURE IN HYDRAULIC CIRCUIT
TESTING CLEARANCE OF SWING CIRCLE BEARING
MEASURING WEAR OF SPROCKET
TESTING AND ADJUSTING TRACK SHOE TENSION
BLEEDING AIR
PROCEDURE FOR RESETTING ELECTRICAL SYSTEM AND CHECKING OPERATION
PROCEDURE FOR REPLACING POTENTIOMETER
PROCEDURE FOR CHECKING DIODE

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
CONNECTOR ARRANGEMENT DIAGRAM
CONNECTION TABLE FOR CONNECTOR PIN NUMBERS
EXPLANATIONS OF CONTROL MECHANISM OF ELECTRICAL SYSTEM
DISPLAY METHOD FOR MONITOR PANEL,CONTROLLER MONITOR PANEL,CONTROLLER DISPLAY METHOD
ERROR CODE TABLE
METHOD OF USING TROUBLESHOOTING CHARTS
TROUBLESHOOTING OF ENGINE SYSTEM (S MODE)
TROUBLESHOOTING OF CONTROLLER,ELECTRICAL SYSTEM(E MODE)
TROUBLESHOOTING OF 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
STARING MOTOR
ALTERNATOR
ENGINE OIL COOLER CORE
FUEL INJECTION PUMP
WATER PUMP
NOZZLE HOLDER
TURBOCHARGER
THERMOSTAT
CYLINDER HEAD
ENGINE,MAIN PUMP
DAMPER
ENGINE FRONT SEAL
ENGINE REAR SEAL
RADIATOR,HYDRAULIC COOLER
FUEL TANK
CENTER SWIVEL JOINT
CENTER SWIVEL JOINT
SPROCKET
FINAL DRIVE,TRAVEL MOTOR
FINAL DRIVE
DISASSEMBLY AND ASSEMBLY OF TRAVEL MOTOR
SWING MOTOR,SWING MACHINERY
SWING MACHINERY
SWING MOTOR
REVOLVING FRAME
SWING CIRCLE
IDLER,RECOIL SPRING
RECOIL SPRING
IDLER
TRACK ROLLER
CARRIER ROLLER
TRACK SHOE
HYDRAULIC TANK
MAIN PUMP
EPC VALVE
PC VALVE
LS VALVE
CONTROL VALVE
LS SELECT VALVE
PRESSURE COMPENSATION VALVE
MAIN RELIEF VALVE
SOLENOID VALVE
PUMP MERGE/DIVIDER SOLENOID VALVE
2-STAGE RELIEF,TRAVEL HI/LO SOLENOID VALVE
INTERFERENCE PREVENTION SOLENOID VALVE
LEFT WORK EQUIPMENT PPC VALVE (FOR SWING, ARM CONTROL)
RIGHT WORK EQUIPMENT PPC VALVE (FOR BOOM,BUCKET CONTROL)
WORK EQUIPMENT PPC VALVE (PPC VALVE FOR BOOM,BUCKET,ARM,SWING CONTROL)
TRAVEL PPC VALVE
PPC VALVE FOR OFFSET CONTROL
BOOM LOCK VALVE
BOOM CYLINDER
ARM CYLINDER
BUCKET CYLINDER
OFFSET CYLINDER
HYDRAULIC CYLINDER FOR OFFSET
HYDRAULIC CYLINDER FOR BOOM,ARM,BUCKET
BUCKET
ARM
BUCKET,ARM
OFFSET BRACKET
2ND BOOM
1ST BOOM
2ND,1ST BOOM
OFFSET BRACKET,2ND,1ST BOOM
BOOM
OPERATOR'S CAB
FLOOR FRAME
AIR CONDITIONER COMPRESSOR
AIR CONDITIONER CONDENSER
AIR CONDITIONER UNIT
COUNTERWEIGHT
CONTROLLER
MONITOR

MAINTENANCE STANDARD
FINAL DRIVE
SWING CIRCLE
SWING MACHINERY
TRACK FRAME – 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
LS-EPC VALVE
SOLENOID VALVE
CENTER SWIVEL JOINT
BOOM HOLDING VALVE
HYDRAULIC CYLINDER
WORK EQUIPMENT
DIMENSION OF WORK EQUIPMENT

HYDRAULIC CIRCUIT DIAGRAM
ELECTRICAL CIRCUIT DIAGRAM

Engine S6D102E-1 workshop service manual