What is Maintenance and Testing of a Diesel Generator ?

diesel-generators-13A regular generator service program should include tests and checks of the following:

  • Cooling system
  • Radiator / heat exchanger, coolant, hoses and connections, fan drive pulley and fan, fan belts, jacket water heater, water pump, thermostats.
  • Fuel system
  • 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
  • Starting system
  • Batteries, battery specific gravity, battery charger, starting motor, alternator, engine monitor and safety controls, gauges, remote annunciators/alarms
  • Generator
  • Bearings, slip rings and brushes, space heaters, vibration isolators
  • Control panel
  • Start controls – manual/auto, voltmeter, ammeter, frequency meter, circuit breaker, auto transfer switch
  • Gas engine
  • Gas lines and connections, carburettor and linkage, magneto/distributor, ignition system, spark plugs
  • Insulation test
  • Main stator, main rotor, exciter stator, exciter rotor
  • Load testing – with full load, perform a two to four hour load test

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