Description

Komatsu 70E-5 Series and 76E-5 Series Engine Manual

Komatsu Engines
Publication: SEBM037701
Format: PDF
Language: English

Komatsu 70E-5 Series (2D70E) & 76E-5 Series (3D76E) Engine Service Manual – 144 Pages

Engine Applicable machine, Serial number

This Manual is as well applicable to these Komatsu 70E-5 Series and 76E-5 Series Engine : 2D70E and 3D76E

Table of Content of the Komatsu 70E-5 Series and 76E-5 Series Engine Manual:

1. GENERAL……………………………………………………………………………………………… 1-2
2. INSPECTION AND ADJUSTMENT …………………………………………………………… 2-1
3. TROUBLESHOOTING…………………………………………………………………………….. 3-1
4. DISASSEMBLY, INSPECTION AND REASSEMBLY OF ENGINES……………… 4-1
5. LUBRICATION SYSTEM…………………………………………………………………………. 5-1
6. COOLING SYSTEM………………………………………………………………………………… 6-1
7. FUEL INJECTION PUMP/GOVERNOR……………………………………………………… 7-1
8. THE SPECIFICATIONS OF A STARTING MOTOR AND THE
CHARACTERISTICS ………………………………………………………………………………. 8-1
9. ALTERNATOR……………………………………………………………………………………….. 9-1
10. ELECTRIC WIRING………………………………………………………………………………. 10-1
11. SERVICE STANDARDS………………………………………………………………………… 11-1
12. TIGHTENING TORQUE FOR BOLTS AND NUTS…………………………………….. 12-1

Cooling water path flushing and maintenance
Rust and water scale will accumulate in the cooling system through many hours of operation. This lowers the engine cooling effect. Oil coolers (attached to turbocharged engines and some of naturally aspirated engines) quickly deteriorate the lube oil. The cleaning and maintenance of the following parts are necessary in accordance with the cooling water replacement.
Cooling system parts: radiator, cooling water pump, thermostat, cylinder block, cylinder head, oil cooler.