Komatsu PC20R-8 / PC27R-8 excavator, repair e-manual
Only original manuals
Available immediately after payment
Full compliance with the paper edition
100% protection of your payments
Publisher: © "PowerLine"
ISBN: 977-129-542-464-4
Number of pages: 278
Format: file PDF
About the manual
Engine type: Komatsu 3D78AE-3FA
In the manual you will find
- Step-by-step guide to repair various components and assemblies
- Self-care and maintenance instructions
- Excavator design and prevention information
- Information for a trip to the service station, if self-repair is not possible
Publisher:
PowerLine
Only original manuals
Available immediately after payment
Full compliance with the paper edition
100% protection of your payments
Publisher: © "PowerLine"
ISBN: 977-129-542-464-4
Number of pages: 278
Format: file PDF
About the manual
Engine type: Komatsu 3D78AE-3FA
In the manual you will find
- Step-by-step guide to repair various components and assemblies
- Self-care and maintenance instructions
- Excavator design and prevention information
- Information for a trip to the service station, if self-repair is not possible
Contents
Safety
General
- Hoisting instructions
- Standard tightening torque
- Coating materials
- Electric wire code
- Weight table
- Table of oil and coolant quantities
Structure and function
- Power train
- Swing circle
- Swing machinery
- Final drive
- Track frame
- Recoil spring
- Carrier roller
- Track roller
- Steel shoe
- Hydraulic system
- Hydraulic circuit diagram
- Hydraulic pump
- Servo piston
- Control valve
- CLSS
- Swivel joint
- Swing motor
- Travel motor
- Cylinder
- Accumulator
- Solenoid valve
- Electrical diagram
Testing and adjustment
- 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
- 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 differential pressure and adjustment of the valve
- Regulation of the PC valve
- Control and regulation of the differential pressure and adjustment of the 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
- 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 tank
- Oil-cooler - radiator
- Pump
- Inner control valve box cover
- Control valve
- PPC valve
- Servocontrol solenoid
- Platform
- Swivel joint
- Swing machinery
- Revolving frame
- Swing circle
- Rubber track shoes
- Steel track-shoes
- Sprocket wheel
- Final drive
- Idler and recoil spring
- Spring recoil and thrust cylinder
- Idler
- Track rollers
- Boom cylinder
- Arm cylinder
- Bucket cylinder
- Boom swing cylinder
- Blade cylinder
- Work equipment
- Bucket
- Arm
- Boom
- Boom swing support
- Blade
Standard maintenance
- Swing circle
- Final drive
- Swing machinery
- Sprocket
- Track frame and recoil spring
- Idler
- Carrier roller
- Track roller
- Track shoe
- Hydraulic pump
- Control valve
- Swivel joint
- Swing motor
- Travel motor
- Cylinder
- Work equipment
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Customers reviews
The entire structure of the machine is described, from the engine and pumps to electrical equipment. I was especially pleased with the availability of data on the calibration and adjustment of control units
