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Diesel Generator Dos & Don'ts: Best Practices for Efficient Operation

Diesel Generator – Dos & Don'ts

Dos:

  1. Idle the Engine Before Shutdown

    • Allow the engine to idle for 3 to 5 minutes before shutting down.

    • This helps the lubricating oil and coolant carry heat away from critical components like the combustion chamber, bearings, and shafts.

  2. Monitor Oil Pressure

    • Oil pressure must be indicated on the gauge within 15 seconds after starting.

    • If oil pressure is not indicated, shut off the engine immediately.

  3. Maintain Proper Oil Temperature

    • Oil temperature should range between 75°C to 105°C.

    • Shut off the engine if there is any sudden increase in oil temperature.

  4. Ensure Correct Coolant Temperature

    • Coolant temperature should be maintained between 75°C to 95°C.

  5. Monitor Engine Pressure

    • At 105°C, normal engine pressure should be between:

      • 3 to 7 kg/cm² at rated speed.

      • 1 to 2 kg/cm² at idle.

Don'ts:

  1. Avoid Long Periods of Idling

    • Extended idling lowers combustion chamber temperature, leading to incomplete fuel burn.

    • This can cause carbon buildup, clogging injector spray holes and piston rings, and may result in stuck valves.

  2. Do Not Over Crank the Engine

    • To prevent cranking motor damage, do not crank the engine for more than 10 seconds continuously.

    • If the engine does not start after three attempts, stop cranking and check the fuel system for faults.

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