Komatsu 68E thru 88E Engine Service Manual
Description
Komatsu 68E thru 88E engine 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 68E thru 88E engine 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.
