The required services to be provided are generator maintenance and repair services at the Mexia State Supported Living Center (MSSLC). The Contractor shall provide inspection, testing, maintenance, repair parts, and hourly labor for the Center’s diesel and gasoline emergency power generator equipment and associated switch gear. The Contractor shall also provide temporary back-up generators to cover the failure of any generators, including delivery, hook-up, and testing. The Contractor shall perform preventative maintenance on generator engines powered by natural gas or diesel power. This includes maintenance of automatic or manual transfer switches, all associate sensors, senders, relays, PC boards, timers, and all other devices which comprise the appropriate integrated emergency power system. Annual preventative maintenance must meet, exceed, or include any of the manufacturer’s requirements if not listed below