Cummins 4B 3.9 / 6B 5.9 Engines Operation And Maintenance Manual

Cummins 4B 3.9 / 6B 5.9 Engines Operation And Maintenance Manual

This is an engine Operation & Maintenance Manual, not a repair manual. This manual contains information needed to correctly operate and maintain your engine as recommended by Cummins. This manual does not cover equipment maintenance procedures. Please consult the equipment manufacturer for specific maintenance recommendations.

This engine is manufactured by Tata Cummins Limited and engineered by Cummins Low Horsepower Business
Unit to suit specific application. Service for this engine will be rendered by Cummins Diesel Sales & Services
(CDS & S) through its authorised dealer’s network. Please contact local service dealer or CDS & S Area /
Regional / Zonal Office for any type of service / technical support. Please refer Section No. 12 for phone
numbers and addresses of CDS & S offices and their dealers.

Contents Page No.
1. Introduction .1
2. General Safety Instructions .2
3. Engine Specifications .4
4. Engine Diagram 6
5. Engine Systems Overview .8
6. Engine Operation 12
7. Fuel, Oil & Coolant Specifications 17
8. Engine Maintenance Chart . 21
9. Engine Maintenance . 47
10. Injuction Fuel Pump Replacement Adjustment and Repair . 67
11. Troubleshooting . 74
12. Engine Wiring Diagram . 93
13. Service Network . 96
Powered by