For Komatsu 70E-5 Series (2D70E) & 76E-5 Series (3D76E) Engines Manual, this reference brings together the listed engine manual material. Start with 1. GENERAL and follow the relevant document section for the task.
What’s Covered Inside
12001 and up
15001 and up
Manuals: Shop 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.
Use publication SEBM037701 (Feb 2005) with the 70E-5 Series (2D70E) & 76E-5 Series (3D76E) model details to select the appropriate documentation. Refer to 1. GENERAL within its stated document and equipment scope.








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