Komatsu Excavator PC128UU-1 PC128US-1 service & repair manual

Description Komatsu Excavator PC128UU-1 PC128US-1 service & repair manual

Komatsu Hydraulic Excavator PC128UU-1, PC128US-1 pdf workshop service manual + operation & maintenance manual

Serial numbers:
PC128UU-1 2347 and up
PC128US-1 1715 and up

Specifications, troubleshooting, maintenance, technical data, electrical diagrams, hydraulic schematics, adjusting, removal, installation instructions and other information

MANUAL CONTENT:
GENERAL
GENERAL ASSEMBLY DRAWING
SPECIFICATIONS
WEIGHT TABLE
LIST OF LUBRICANTS AND WATER

STRUCTURE AND FUNCTION
RADIATOR AND OIL COOLER
PTO (COUPLING)
ENGINE CONTROL
POWER TRAIN SYSTEM
SWING CIRCLE
SWING MACHINERY
TRACK FRAME
IDLER CUSHION
TRACK SHOE
HYDRAULIC PIPING DRAWING
HYDRAULIC CIRCUIT DIAGRAM
HYDRAULIC TANK
HYDRAULIC PUMP
CONTROL VALVE
CLSS
SWING MOTOR
TRAVEL MOTOR
CENTER SWIVEL JOINT
VALVE CONTROL
PPC VALVE
PPC SHUTTLE AND TRAVEL JUNCTION VALVE
EPC SOLENOID VALVE
BOOM HOLDING VALVE
WORK EQUIPMENT
AIR CONDITIONER
ACTUAL ELECTRICAL WIRING DIAGRAM
ELECTRONIC CIRCUIT DIAGRAM
ELECTRONIC CONTROL SYSTEM
MACHINE MONITORING SYSTEM

TESTING AND ADJUSTING
STANDARD VALUE TABLE FOR ENGINE RELATED PARTS
STANDARD VALUE TABLE FOR CHASSIS RELATED PARTS
STANDARD VALUE TABLE FOR ELECTRICAL RELATED PARTS (EXCEPT AUTOMATIC HORIZONTAL DIGGING MACHINE)
STANDARD VALUE TABLE FOR ELECTRICAL RELATED PARTS
TOOLS FOR TESTING, ADJUSTING AND TROUBLESHOOTING
MEASURING ENGINE SPEED
MEASURING EXHAUST COLOR
ADJUSTMENT VALVE CLEARANCE
MEASUREMENT BLOW-BY PRESSURE
MEASUREMENT ENGINE OIL PRESSURE
TESTING AND ADJUSTMENT OF FUEL INJECTION TIMING
TESTING AND ADJUSTING AIR CONDITIONER COMPRESSOR BELT TENSION
ADJUSTING ENGINE SPEED SENSOR
ADJUSTING FUEL CONTROL CABLE
ADJUSTING FUEL CONTROL CABLE
ADJUSTING ENGINE STOP SOLENOID LINKAGE
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
TESTING AND ADJUSTING CONTROL PUNP CIRCUIT OIL PRESSURE
TESTING SOLENOID VALVE OUTPUT PRESSURE
MEASURING PPC VALVE OUTPUT PRESSURE AND TESTING PPC SHUTTLE VALVE
ADJUSTING WORK EQUIPMENT, SEING PPC VALVE
TESTING AND ADJUSTING TRAVEL DEVIATION
CHECKING LOCATION OF CAUSE OF HYDRAULIC DRIFT OF WORK EQUIPMENT
MEASUREMENT OIL LEAKAGE OF SWING, TRAVEL MOTOR
RELEASING REMAINING PRESSURE IN HYDRAULIC CIRCUIT
TESTING CLEARANCE OF SWING CIRCLE BEARING
TESTING AND ADJUSTING TRACK SHOE TENSION
BLEEDING AIR
PROCEDURE FOR RESETTING ELECTRICAL SYSTEM AND CHECKING OPERATION
PROCEDURE FOR REPLACING POTENTIOMETER
PREOCEDURE 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
CONNECTOR TYPES AND MOUNTING LOCATIONS
CONNECTOR ARRANGEMENT DIAGRAM
CONNECTION TABLE FOR CONNECTOR PIN NUMBERS
EXPLANATIONS OF CONTROL MECHANISM OF ELECTRICAL SYSTEM
DISPLAY METHOD FOR MOMITOR PANEL, CONTROLLER
METHOD OF USING JUDGEMENT TABLE
METHOD OF USING TROUBLESHOOTING CHARTS
TROUBLESHOOTING OF CONTROLLER ELECTRICAL SYSTEM (E MODE)
TROUBLESHOOTING OF ENGINE SYSTEM (S MODE)
TROUBLESHOOTING OF CONTROLLER INPUT SIGNAL SYSTEM (F MODE)
TROUBLESHOOTING OF HYDRAULIC, 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
SKECHES OF SPECIAL TOOLS
STARTING MOTOR
ALTERNATOR
ENGINE OIL COOLER
FUEL INJECTION PUMP
WATER PUMP
NOZZLE HOLDER
TURBOCHARGER
THERMOSTAT
CYLINDER HEAD
ENGINE, MAIN PUMP
RADIATOR, HYDRAULIC COOLER
FUEL TANK
CENTER SWIVEL JOINT
SPROCKET
TRAVEL MOTOR
SWING MOTOR, SWINMG MACHINERY
SWING MACHINERY
SWING MOROR
REVOLVING FRAME
SWING CIRCLE
IDLER, RECOIL SPRING
RECOIL SPRING
IDLER
TRACK ROLLER
CARRIER ROLLER
SEEEL SHOE RUBBER PAD SHOE, LOAD LINER
INTEGRATED RUBBER SHOE
HYDRAULIC TANK
MAIN PUMP
CONTROL PUMP
PC-EPC, LS-EPC VALVE
PC VALVE
LS VALVE
CONTROL VALVE
LS SELSECT VALVE
LS SHUTTLE VALVE
PRESSURE COMPENSATION VALVE
MAIN RELIEF VALVE
SOLENOID VALVE
WORK EQUIPMENT L.H. PPC VALVE (ARM, SWING)
WORK EAUIPMENT R.H. PPC VALVE (BOOM, BUCKET)
WORK EQUIPMENT PPC VALVE (BOOM, BUCKET, ARM, SWING)
TRAVEL PPC VALVE
PPC VALVE FPR OFFSET CONTROL
BLADE PPC VALVE
BOOM LOCK VALVE
BOOM CYLINDER
ARM CYLINDER
BUCKET CYLINDER
OFFSET CYLINDER
BLADE CYLINDER
HYDRAULIC CYLINDER
WORK EQUIPMENT
BUCKET
ARM
BUCKET, ARM
SECOND BOOM
1ST BOOM
BLADE
OPERATOR'S CAB
FLOOR FRAME
AIR CONDITIONER COMPRESSOR
AIR CONDENSER
COUNTERWEIGHT
CONTROLLER
MONITOR
CAR COOLER UNIT

MAINTENANCE STANDARD
SWING MACHINERY
SWING CIRCLE
TRACK FRAME
IDLER
CARRIER ROLLER
TRACK ROLLER
SPROCKET
TRACK SHOE
HYDRAULIC PUMP
CONTROL VALVE
SWING MOTOR
TRAVEL MOTOR
CENTER SWIVEL JOINT
PPC VALVE
PPC SHUTTLE – TRAVEL JUNCTION VALVE
EPC SOLENOID VALVE
BOOM HOLDING VALVE
HYDRAULIC CYLINDER
WORK EQUIPMENT
DIMENSION OF WORK EQUIPMENT

OTHERS
HYDRAULIC PIPING DRAWING
MACHINE EQUIPMENT WITH AUTOMATIC HORIZONTAL EXCAVATION CONTROL (PC128UU-1)
HYDRAUIC CIRCUIT DIAGRAM (PC128UU-1)
MACHINE EQUIPMENT WITH AUTOMATIC HORIZONTAL EXCAVATION CONTROL (PC128UU-1)
CLSS
ACTUAL ELECTRICAL WIRING DIAGRAM (PC128UU-1)
ELECTRICAL CIRCUIT DIAGRAM (PC128UU-1)
ELECTRONIC CONTRAL SYSTEM
HYDRAUIC CIRCUIT DIAGRAM (PC128US-1)
ELECTRICAL CIRCUIT DIAGRAM (PC128US-1)
CONNECTOR ARRANGEMENT DIAGRAM

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