A regular generator service program should include tests and checks of the following:
Radiator/heat exchanger, coolant, hoses and connections, fan drive pulley and fan, fan belts, jacket water heater, water pump, thermostats.
Fuel tank, water trap/separator, fuel lines and connections, governor and controls, fuel filters – primary/secondary, fuel pressure, air induction and exhaust system, air filter, air filter service indicator, air inlet system, turbocharger, exhaust manifold, valves and valve rotators.
Lubrication oil system
Oil, oil filters, oil pressure, crankcase breather
Batteries, battery specific gravity, battery charger, starting motor, alternator, engine monitor and safety controls, gauges, remote annunciators/alarms
Bearings, slip rings and brushes, space heaters, vibration isolators
Start controls – manual/auto, voltmeter, ammeter, frequency meter, circuit breaker, auto transfer switch
Gas lines and connections, carburettor and linkage, magneto/distributor, ignition system, spark plugs
Main stator, main rotor, exciter stator, exciter rotor
With a full load, perform a two to four-hour load test