Service Support

Service Support

Maintenance of Diesel Generator Sets

Proper maintenance of diesel generator sets is essential to ensure their reliability, efficiency, and longevity. The following outlines a structured maintenance plan, categorized into A, B, and C-level maintenance tasks.


A-Level Maintenance (Daily and Weekly)
Daily Checks:

•Review the generator's operational log.
•Inspect oil and coolant levels.
•Examine the generator for any signs of damage or leaks, and check for belt wear or looseness.


Weekly Checks:
1.Repeat all daily checks.
2.Inspect and clean or replace the air filter as needed.
3.Drain any water or sediment from the fuel tank and fuel filter.
4.Check the water filter.
5.Assess the starting battery for condition and charge.
6.Start the generator and monitor for any operational issues.
7.Clean the cooling radiator fins with compressed air and water.


B-Level Maintenance (Monthly or Every 250 Hours)
1.Conduct all A-level maintenance tasks.
2.Change the engine oil and replace the oil filter.
3.Replace the fuel filter.
4.Inspect and, if necessary, replace the coolant. Ensure the coolant system is topped up with DCA coolant as needed.
5.Clean or replace the air filter (replacement is typically needed every 500-600 hours).


C-Level Maintenance (Every 500-1000 Hours)
1.Replace the diesel filter, oil filter, and water filter; refresh the coolant and oil.
2.Adjust the tension of the fan belt.
3.Inspect the turbocharger.
4.Disassemble, inspect, and clean the PT pump and actuator.
5.Open the rocker cover to inspect the T-plate, valve guides, and intake/exhaust valves.
6.Adjust the injector lift and valve clearances.
7.Check the alternator.
8.Clean the radiator and the external cooling components.
9.Add coolant conditioner to the radiator and clean the internal components.
10.Inspect the engine sensors and wiring connections.
11.Review the generator’s instrumentation panel for any discrepancies.


Regular adherence to these maintenance schedules will help ensure the optimal operation of diesel generator sets, ultimately enhancing their reliability and extending their service life.

Return to List