What are the major mechanical maintenance items of a 50 MW diesel power plant? As a plant engineer make a list for work plan.

Your best option is read the maintenance manual of the Generator. But usually, the recurring items include but not limited to:

1. Oil filters, and oil

2. Grease

3. Air filters,

4. Nuts and bearings (keep an eye on vibrations)

5. Fuel pump filters and sealing O-rings

6. All kind of O-rings and sealing pads, washers, etc

7. Exhaust gas lines

8. Fuel pressure

9 Coolant system components

10. Vibration dumpers (might be included in yearly maintenance)

And so on.

sorry i'm not expert on this filed

,Diesel engine, coupling, thrust bearings, and output generator and simply i would follow the maintenance steps instructions from the manufacturers of these items of the plant