Komatsu Mini Excavator PC27R-8 Deluxe service & repair manual

Description Komatsu Mini Excavator PC27R-8 Deluxe service & repair manual

Komatsu Mini Excavator PC27R-8 Deluxe pdf workshop service repair manual + operation & maintenance manual

Serial number F31103 and up

MANUAL CONTENT:
STRUCTURE AND FUNCTION
Power train
Swing circle
Swing machinery
Final drive
Track frame
Recoil spring
Track roller
Carrier roller
Steel shoe
Hydraulic system
Hydraulic circuit diagram
Hydraulic pump
Control valve
CLSS
Swivel joint
Swing motor
Travel motor
Cylinder
Accumulator
PPC valve
Solenoid valve
Electrical diagram

TESTING AND ADJUSTMENTS
Normal or standard technical data
Special tools
Checking the engine speed
Adjustment of valve clearance
Measurement of the compression pressure
Control and adjustment of the tension of the fan belt
Control and adjustment of the injection timing
Control and adjustment of the accelerator stroke
Adjustment of the stroke of the blade command lever
Adjusting the flexible cables
Control and adjustment of the stroke of the travel lever
Adjustment of the stroke of the boom swing command pedal
Adjustment of the PPC valve clearances
Adjustment of the rubber pad and safety microswitch for servo-control engagement
Special tools
Checking the engine speed
Adjustment of valve clearance
Measurement of the compression pressure
Control and adjustment of the tension of the fan belt
Control and adjustment of the injection timing
Control and adjustment of the accelerator stroke
Adjustment of the stroke of the blade command lever
Adjusting the flexible cables
Control and adjustment of the stroke of the travel lever
Adjustment of the stroke of the boom swing command pedal
Adjustment of the PPC valve clearances
Adjustment of the rubber pad and safety microswitch for servo-control engagement
Control and adjustment of the track-shoe tension
Control and regulation of the pressures in the hydraulic circuits
Control and regulation of the LS differential pressure and adjustment of the LS valve
Regulation of the PC valve
Control and regulation of the servo-control power supply
Elimination of residual pressures - pressurisation of the tank
Bleeding air from the hydraulic circuits
Control of hydraulic drifts - analysis of the causes of a drift
Checking for any leakages inside the working equipment cylinders
Checking for any leakages inside the swing motor
Methods for testing for leakages inside the swivel joint

REMOVAL AND INSTALLATION
STARTER MOTOR
ALTERNATOR
INJECTION PUMP
NOZZLE HOLDER
WATER COOLANT PUMP
CYLINDER HEAD
ENGINE HOOD
CANOPY
CAB
HEATING FAN
COUNTERWEIGHT
FUEL TANK
HYDRAULIC OIL TANK
SWING CIRCLE
RUBBER TRACK SHOES
STEEL TRACK-SHOES
SPROCKET WHEEL
FINAL DRIVE
IDLER AND RECOIL SPRING
SPRING RECOIL AND THRUST CYLINDER GROUPS
IDLER
TRACK ROLLERS
BOOM CYLINDER
ARM CYLINDER

STANDARD MAINTENANCE
Swing circle
Swing machinery
Final drive
Sprocket
Track frame and recoil spring
Idler
Carrier roller
Track roller
Track shoe
Hydraulic pump
Control valve
Swivel joint
Swing motor
Travel motor
PPC Valve (for boom, arm, bucket, swing)
PPC Valve (for hammer)
Cylinder
Work equipment

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