The 20kW automatic standby generator has a recommended service interval of every 2 years or 200 hours, whichever comes first. Proper maintenance includes changing the oil, oil filter, air filter, spark plugs, adjusting the valve clearance, and attending to the battery as needed. A full maintenance schedule will be located in the owner’s manual under the Service Schedule section that includes intervals in which these items should be inspected and changed. A copy of the owner’s manual can be found by searching the unit’s model or serial number here: http://www.generac.com/Service/Manu...
answered 1 year, 2 months ago