Komatsu Excavator PC120-6 Excel service & repair manual

Description Komatsu Excavator PC120-6 Excel service & repair manual

Komatsu Hydraulic Excavator PC120-6 Excel pdf workshop service repair manual + operation & maintenance manual

Serial number 57499 and up

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

MANUAL CONTENT:
GENERAL
General assembly drawing
Specifications
Weight table
List of lubricant and water

STRUCTURE AND FUNCTION
Engine control
PTO
Powertrain
Swing circle
Swing machinery
Track frame
Track shoe
Hydraulic piping drawing
Hydraulic circuit diagram
Hydraulic tank
Hydraulic pump
Control 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
Accumulator for breaker
Additional filter for breaker
Work equipment
Air conditioner
Actual electrical wiring diagram
Electrical circuit diagram
Electric control system
Machine monitor system
Sensors

TESTING AND ADJUSTING
Standard value table for engine related parts
Standard value table for chassis related parts
Standard value table for electrical parts
Tools for testing, adjusting, and troubleshooting
Measuring engine speed
Measuring exhaust color
Adjusting valve clearance
Measuring blow-by pressure
Measuring engine oil pressure
Testing and adjusting belt tension for air conditioner compressor
Adjusting fuel control lever
Adjusting engine speed sensor
Testing and adjusting LS valve output pressure (servo piston input pressure) and LS differential pressure
Testing and adjusting control pump circuit oil pressure
Testing solenoid valve output pressure
Measuring PPC valve output pressure
Adjusting work equipment, swing PPC valve
Testing travel deviation
Measuring oil leakage
Releasing remaining pressure in hydraulic circuit
Testing clearance of swing circle bearing
Testing and adjusting track shoe tension
Measuring wear of sprocket
Bleeding air
Troubleshooting

DISASSEMBLY AND ASSEMBLY
PRECAUTIONS WHEN CARRYING OUT OPERATION
SPECIAL TOOL LIST
SKETCHES OF SPECIAL TOOLS
STARTING MOTOR
ALTERNATOR
AIR CONDITIONER COMPRESSOR
CONDENSER
ENGINE OIL COOLER CORE
FUEL INJECTION PUMP
WATER PUMP
NOZZLE HOLDER
TURBOCHARGER
THERMOSTAT
CYLINDER HEAD
ENGINE, MAIN PUMP
HYDRAULIC COOLER
RADIATOR, HYDRAULIC COOLER
FUEL TANK
Removal and Installation
CENTER SWIVEL JOINT
SPROCKET
TRAVEL MOTOR
SWING MACHINERY. SWING MOTOR
SWING MOTOR
SWING MACHINERY
REVOLVING FRAME
SWING CIRCLE
IDLER, RECOIL SPRING
IDLER
RECOIL SPRING
TRACK ROLLER
CARRIER ROLLER
TRACK SHOE
HYDRAULIC TANK

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
Work equipment Swing PPC valve
Travel PPC valve
Service PPC valve
Hydraulic cylinder
Work equipment
Dimension of work equipment

Others
Hydraulic circuit diagram
Electric circuit diagram

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