Komatsu PC20R-8,PC25R-8,PC27R-8 Workshop Service Manual

Komatsu PC20R-8,PC25R-8,PC27R-8 Workshop Service Manual.

This Covers and  contains the following 3 manuals

1. Komatsu 68E thru 88E engine service manual

2. Komatsu PC20R-8,PC25R-8,PC27R-8 shop manual

3. Komatsu PC27R-8 operation and maintenance manual

Komatsu 68E-88E series engine service manual. This manual covers following models.

2D68E,3D68E,3D74E,3D78AE,3D62AE,3D82E,3D84E,3D88E,4D84E,4D82E,4D88E,S3D84E,S4D84E.

This is a high quality workshop manual which covers all aspects of engine rebuilding.212 pages.

The PC20R-8 uses 3D74E-3

The PC25R-8 and PC27R-8 both use 3D82E-3 engine

Komatsu PC20R-8,PC25R-8,PC27R-8 Workshop Service Manual

Komatsu PC20R-8,PC25R-8,PC27R-8 shop manual. This is the factory workshop manual,473 pages

PC20R-8 10001 and up

PC25R-8 10001 and up

PC27R-8 10001 and up

Komatsu PC27R-8 operation and maintenance manual. This is the factory O & M manual,209 pages

SERIAL NUMBERS PC27R-8 F31103 and up.

Engine

Make Komatsu

Model 3D78AE-3FA

Gross Power 26.7 hp 19.9 kw

Net Power 23.3 hp 17.4 kw

Power Measured @ 2600 rpm

Displacement 73.5 cu in 1.2 L

Torque Measured @ 1600 rpm

Max Torque 53.5 lb ft 72.5 Nm

Number of Cylinders 3

Aspiration Natural

Operational

Operating Weight 5588.7 lb 2535 kg

Fuel Capacity 9.2 gal 35 L

Cooling System Fluid Capacity 1.1 gal 4 L

Hydrauilc System Fluid Capacity 7.7 gal 29 L

Engine Oil Capacity 0.95 gal 3.6 L

Operating Voltage 12 V

Alternator Supplied Amperage 40 amps

Hydraulic System Relief Valve Pressure 3045.8 psi 21000 kPa

Hydraulic Pump Flow Capacity 15.7 gal/min 59.6 L/min

Swing Mechanism

Swing Speed 9 rpm

Undercarriage

Number of Shoes per Side 38

Shoe Size 9.8 in 250 mm

Number of Track Rollers per Side 3

Ground Pressure 1.6 psi kPa

Max Travel Speed 2.7 mph 4.3 km/h

Track Gauge 3.7 ft in 1120 mm.

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Komatsu PC20R-8,PC25R-8,PC27R-8 Workshop Service Manual