As the generator is for emergency, so it stopped for long time and only run for preventive maintenance, so its not accomulate running time, what is the standard to evaluate the need for maintenance ?
First make sure the fuel is fresh periodically. Old fuel deteriorates makes it hard it start and run. Second check the oil see if it is clean, check the oil filter too. Third check the fuel filter, change once a year if not used because of bad / old fuel. Forth Check the out put of the engine / voltage / oil pressure / amperage / operating temperature / current fuses / transfer switches are working properly. Listen and make sure the engine is running smooth, no misses. Should be good to go then.
