Specifications include, but are not limited to: Emergency power generators maintenance and as-needed and emergency repair services. Preventative maintenance will be scheduled every six months unless otherwise specified and shall include the following: 1) Replace lube oil (once per year) 2) Replace lube oil filter(s) (once per year) 3) Replace fuel filter(s) (once per year) 4) Replace coolant filter(s) (once per year) 5) Service/Clean air filter(s) 6) Perform air inlet restriction test (diesel units). 7) Check coolant level, condition of coolant, freeze protection rating and perform pressure test. 8) Inspect/adjust hoses, belts and linkages. 9) Diesel engines: Inspect injection system and fuel lines. 10) Gas/LP engines: Inspect complete ignition system, check timing, and replace points, condenser and spark plugs.