Generator Maintenance & Fire Pump PM

Preventative MaintenanceOur Generator Maintenance & Fire Pump Engine Preventative Maintenance will provide a maintenance program which will be implemented for the purpose of maintaining the emergency standby generator(s) and fire pump engines in the best possible operating condition. These inspections will include:

Level 1 (minor) Service Inspection Cooling System

  • Inspect radiator/heat exchanger for leaks, exterior cleanliness and/or deterioration
  • Check and record coolant level
  • Check and record coolant freeze protection.
  • Inspect hoses and connections for signs of leaks and/or deterioration.
  • Inspect fan drive pulley and fan for signs of wear or cracks.
  • Inspect fan drive belts for signs of cracking or deterioration.
  • Confirm jacket water heater is working and record coolant temperature (engine not running).
  • Inspect water pump for any indication of leaks.

Fuel System

  • Inspect fuel water separator (if equipped), drain any water from water/sediment bowl (if equipped).
  • Check and record fuel tank level (if equipped with gauge)
  • Visually inspect fuel tank and fuel piping for any indication of leaks.
  • Inspect fuel lines and connections for leaks.
  • Inspect governor linkage (if equipped) for free movement and signs of wear.
  • Record fuel pressure (if equipped) while engine is running.

Air Intake and Exhaust System

  • Verify oil level is between “add” and “full” marks on dipstick.
  • Inspect crankcase breather and related tubing for sings of leaks or excessive pressure.
  • Crankcase fumes disposal tube/piping should be extended beyond radiator to prevent oil mist contamination of radiator core.
  • Note and record oil pressure on gauge with engine running.
  • Check for any signs of oil leaks.

Starting System

  • Check and record specific gravity reading of each cell (if maintainable).
  • Check for proper level of electrolyte in each cell
  • Check battery charger for proper operation and record amperage reading.
  • Check and record the last date that batteries were replaced. Recommend that batteries be replaced every three years, regardless of condition per NFPA 110 recommendations.

Control Panel

  • Verify gauges are operating and record readings.
  • Check for presence of any warning lights/alarms.
  • Perform lamp/bulb test.

Safety Controls – Check for proper operation of safety devices below:

  • Overcrank
  • Overspeed
  • High Coolant Temperature
  • Low Oil Pressure
  • Not-in-Auto
  • Emergency Stop

Natural Gas or Propane Generator Sets

  • Inspect engine gas lines, regulator and carburetor for signs of leaks/corrosion.
  • Inspect carburetor and linkage (if equipped) for proper operation.
  • Inspect ignition system (magneto/distributor/spark plugs/wires).

Operational Checks with Engine Running

  • Check for any leaks or unusual noises.
  • Verify proper voltage and frequency via control panel gauges.
  • Check for proper air inlet and outlet louver operation (if equipped).

Walk-around inspection

  • Visual inspection of generator and environment.
  • Check for signs of rodent/insect activity.

Conclusion of Visit/Recommendation

  • Control panel: confirm control switch is in “auto” position
  • Circuit breaker: confirm breaker is in “ON” position.
  • Provide written recommendation(s) for any suggested repairs.


Perform all work required under Level 1 Inspection plus:

  • Replace lubricating oil and lubricating oil filters and fuel filters.
  • Obtain oil sample (via sample port with engine running)
  • Obtain coolant sample and send out for laboratory analysis. (adder predictive maintenance)

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Generator PM, ATS PM, Fire Pump PM, Load Bank Testing Fuel Polishing 


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800 288 6016

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24/7 Service Department

3927 Mulvey Avenue

Bronx, NY 10466

1 800 288 6016


24/7 Service Department:

1529 Grafton Road

Millbury, MA 01527

1 800 288 6016

generator service company

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