Specifications include, but are not limited to: A. Maintenance Service Level 1: Predictive/Preventive Maintenance Level #1 shall be performed on an annual basis. Inspection and maintenance shall include, but not limited to the following: 1. Overall condition of unit 2. Cooling system (v-belts & hoses) 3. Fuel system 4. Air intake and exhaust system 5. Lube oil system 6. Starting system and batteries 7. Engine safety controls 8. Generator and control panel 9. Block heaters and battery charger 10. Operation of engine and generator 11. Coolant container, fuel and oil filters, replacement oil, and gaskets 12. Lube Oil System (change oil and filters, take oil sample, clean crank case breather) 13. Intake and exhaust (adjust valves if needed, and inspect turbo) 14. Generator (check voltage, lube generator bearing if needed) 15. Control panel (check controls and gauges) 16. Load bank testing B. Repair Services: Services not covered under Level #1 shall require pre-approval of the City and repair parts shall only be original equipment manufacturer (OEM) or better parts used to make repairs. Prior to using non-OEM parts, a comparison data sheet shall be provided to the City. All non-OEM parts must be approved by the City prior to installation. To verify Contractor's parts cost, the Contractor shall submit copies of manufacturer's invoices when non predictive/preventive parts are supplied.