Komatsu Mini Excavator PC20R-8 PC25R-8 PC27R-8 service & repair manual

Description Komatsu Mini Excavator PC20R-8 PC25R-8 PC27R-8 service & repair manual

Komatsu Mini Excavator PC20R-8, PC25R-8, PC27R-8 pdf workshop service repair manual + operation & maintenance manual

Serial numbers:
PC20R-8 10001 and up, F30001 and up, F30791 and up
PC25R-8 10001 and up
PC27R-8 10001 and up, F30001 and up, F30671 and up, F31103 and up

Technical documentation, specifications, troubleshooting, maintenance, electrical 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
Swing circle
Swing machinery
Track frame
Recoil spring
Hydraulic piping
Hydraulic circuit diagram
Hydraulic tank
Hydraulic pump
Control valve
CLSS
Center swivel joint
Swing motor
Travel motor
Valve control
PPC valve
Work equipment
Electrical circuit diagram
Machine monitor system

TESTING AND ADJUSTING
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 compression pressure
Testing and adjusting fuel injection timing
Measuring engine oil pressure
Testing and adjusting trank shoe tension
Measuring sprocket wear
Testing and adjusting LS differential pressure
Adjusting PPC valve
Testing and adjusting control circuit pressure
Measuring output pressure of PPC lock valve and travel boost valve
Testing PPC valve output pressure and swing brake inlet port pressure
Adjusting work equipment swing PPC valve
Testing and adjusting travel deviation
Measuring oil leakage inside cylinder
Releasing remaining pressure from hydraulic circuit
Releasing remaining pressure from hydraulic tank
Pressuring hydraulic tank
Bleeding air
Troubleshooting

DISASSEMBLY AND ASSEMBLY
PRECAUTIONS WHEN CARRYING OUT OPERATION
SPECIAL TOOL LIST
SKETCHES OF SPECIAL TOOLS
STARTING MOTOR
ALTERNATOR
FUEL INJECTION PUMP
NOZZLE HOLDER
WATER PUMP
THERMOSTAT
ENGINE FRONT SEAL
ENGINE REAR SEAL
CYLINDER HEAD
RADIATOR
ENGINE, HYDRAULIC PUMP
FUEL TANK
DAMPER
CENTER SWIVEL JOINT
TRAVEL MOTOR
SWING MOTOR, SWING MACHINERY
SWING MOTOR
REVOLVING FRAME
SWING CIRCLE
IDLER
RECOIL SPRING
TRACK ROLLER
CARRIER ROLLER
RUBBER SHOE
STEEL SHOE
HYDRAULIC TANK
HYDRAULIC COOLER
HYDRAULIC PUMP

MAINTENANCE STANDARD
Swing circle
Swing machinery
Track frame, recoil spring
Idler
Carrier roller
Track roller
Track shoe
Hydraulic pump
Hydraulic pump (LPV30)
Control valve
Center swivel joint
Swing motor
Travel motor
PPC valve
Hydraulic cylinder

OTHERS
ELECTRICAL DIAGRAM
HYDRAULIC DIAGRAM

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