A Standby Generator Maintenance Checklist

Weekly Maintenance

• Run the generator (typically no-load, automatic transfer switch exercise cycle.)
• Verify that the unit ran and has no alarms or warnings.
• Ensure adequate fuel levels.
• Ensure that the generator is in "Auto" mode, for automatic startup.
• Check that the circuit breaker is closed.
• Make sure there are no fluid leaks.

Monthly Maintenance

• Check engine coolant level.
• Check engine oil level.
• Check the battery charger.

Bi-Annual Maintenance (Schedule maintenance with a certified technician)

• Inspect the enclosure.
• Check the battery electrolyte level and specific gravity.
• Check the battery cables and connections.
• Inspect drive belts.
• Inspect the coolant heater.
• Check coolant lines and connections.
• Check for oil leaks and inspect lubrication system hoses and connectors.
• Inspect the exhaust system, muffler and exhaust pipe.
• Check and clean air cleaner units
• Inspect air induction piping and connections.
• Inspect the DC electrical system, control panel and accessories.
• Inspect the AC wiring and accessories.

Annual Maintenance (Schedule maintenance with a certified technician

• Change oil and filter.
• Change the fuel filter.
• Change the air filter.
• Clean the crankcase breather.
• Change spark plugs.
• Check coolant concentration.
• Flush line cooling system (as needed).
• Perform load bank testing.