Komatsu Excavator PC290LC-7K PC290NLC-7K service & repair manual

Description Komatsu Excavator PC290LC-7K PC290NLC-7K service & repair manual

Komatsu Hydraulic Excavator PC290LC-7K, PC290NLC-7K pdf workshop service manual

Serial numbers:
K40001 and up

Specifications, testing, adjusting, troubleshooting, technical documentation, electrical 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, FUNCTION AND MAINTENANCE STANDARD
ENGINE RELATED PARTS
RADIATOR - OIL COOLER - AFTERCOOLER
POWER TRAIN
FINAL DRIVE
SWING MACHINERY
SWING CIRCLE
TRACK FRAME - RECOIL SPRING
IDLER
CARRIER ROLLER
TRACK ROLLER
TRACK SHOE
HYDRAULIC EQUIPMENT LAYOUT DRAWING
HYDRAULIC TANK
HYDRAULIC PUMP
CONTROL VALVE
SELF PRESSURE REDUCING VALVE
CLSS
SWING MOTOR
REVERSE PREVENTION VALVE
CENTRE SWIVEL JOINT
TRAVEL MOTOR
TRAVEL JUNCTION VALVE
TRAVEL PPC SHUTTLE VALVE
VALVE CONTROL
WORK EQUIPMENT - SWING PPC VALVE
TRAVEL PPC VALVE
SERVICE PPC VALVE
SOLENOID VALVE
PPC ACCUMULATOR
RETURN OIL FILTER
BOOM HYDRAULIC DRIFT PREVENTION VALVE
LIFT CHECK VALVE
ATTACHMENT CIRCUIT SELECTOR VALVE
HYDRAULIC CYLINDER
WORK EQUIPMENT
AIR CONDITIONER
ENGINE CONTROL
ELECTRONIC CONTROL SYSTEM
MULTI MONITOR SYSTEM
SENSOR

TESTING AND ADJUSTING
STANDARD VALUE TABLE FOR ENGINE RELATED PARTS
STANDARD VALUE TABLE FOR CHASSIS RELATED PARTS
INSPECTION AND ADJUSTMENT OF ENGINE RPM
MEASUREMENT OF EXHAUST GAS COLOR
ADJUSTMENT OF VALVE CLEARANCE
MEASUREMENT OF COMPRESSION PRESSURE
MEASUREMENT OF BLOW-BY PRESSURE
INSPECTION AND ADJUSTMENT OF FUEL INJECTION TIMING
MEASUREMENT OF ENGINE OIL PRESSURE
ADJUSTMENT OF ENGINE SPEED SENSOR
INSPECTION AND ADJUSTMENT OF AIR COMPRESSOR BELT TENSION
EMERGENT ESCAPE FROM FAILURE IN ENGINE CONTROL SYSTEM
MEASUREMENT OF CLEARANCE IN SWING CIRCLE BEARINGS
INSPECTION AND ADJUSTMENT OF TRACK SHOE TENSION
INSPECTION OF WEAR ON SPROCKET
INSPECTION AND ADJUSTMENT OF HYDRAULIC OIL PRESSURE IN HYDRAULIC CIRCUIT FOR WORK EQUIPMENT, SWING AND TRAVEL
INSPECTION AND ADJUSTMENT OF CONTROL CIRCUIT OIL PRESSURE
INSPECTION AND ADJUSTMENT OF PUMP PC CONTROL CIRCUIT OIL PRESSURE
INSPECTION AND ADJUSTMENT OF PUMP LS CONTROL CIRCUIT OIL PRESSURE
MEASUREMENT OF SOLENOID VALVE OUTPUT PRESSURE
MEASUREMENT OF PPC VALVE OUTPUT PRESSURE
ADJUSTMENT OF WORK EQUIPMENT AND SWING PPC VALVE
INSPECTION OF LOCATIONS OF HYDRAULIC DRIFT OF WORK EQUIPMENT
RELEASE OF REMAINING PRESSURE IN HYDRAULIC CIRCUIT
MEASUREMENT OF OIL LEAKAGE AMOUNT
AIR BLEEDING OF VARIOUS PARTS
INSPECTION PROCEDURES FOR DIODE
SPECIAL FUNCTION OF MULTI-MONITOR PANEL
PREPARATIONS FOR TROUBLESHOOTING ELECTRICAL SYSTEM

TROUBLESHOOTING
TROUBLESHOOTING WHEN SERVICE CODE "ELECTRICAL SYSTEM" AND FAILURE CODE "MECHANICAL SYSTEM" ARE INDICATED
TROUBLESHOOTING OF ELECTRICAL SYSTEM (E-MODE)
TROUBLESHOOTING OF HYDRAULIC AND MECHANICAL SYSTEM (H-MODE)

DISASSEMBLY AND ASSEMBLY
HOW TO READ THIS MANUAL
PRECAUTIONS WHEN PERFORMING OPERATION
STARTING MOTOR
FUEL INJECTION PUMP
ENGINE FRONT SEAL
ENGINE REAR SEAL
CYLINDER HEAD
RADIATOR ASSEMBLY
HYDRAULIC OIL COOLER
ENGINE AND HYDRAULIC PUMP
FINAL DRIVE
SWING MOTOR AND SWING MACHINERY
CARRIER ROLLER
TRACK ROLLER
IDLER
RECOIL SPRING
SPROCKET
TRACK SHOE
SWING CIRCLE
REVOLVING FRAME
CENTER SWIVEL JOINT
HYDRAULIC TANK
CONTROL VALVE
HYDRAULIC PUMP
OIL SEAL IN HYDRAULIC PUMP INPUT SHAFT
WORK EQUIPMENT PPC VALVE
TRAVEL PPC VALVE
HYDRAULIC CYLINDER
WORK EQUIPMENT
AIR CONDITIONER UNIT
COUNTERWEIGHT
OPERATOR’S CAB
MONITOR ASSEMBLY
GOVERNOR PUMP CONTROLLER

OTHERS
HYDRAULIC CIRCUIT DIAGRAM
ELECTRICAL CIRCUIT DIAGRAM

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