The type of washer furnished by the chosen supplier shall be a Hot-Water Pressure Washer. The pressure washer shall be able to remove heavy accumulations of oil and road dirt from bus diesel engines and transmissions, thoroughly clean seven-row core diesel radiators and air-to-air chargers, remove built-up brake dust, oil and road dirt from bus wheels, wheelchair ramp systems, and remove diesel exhaust shoot from the bus rear exterior. The pressure washer units, installation should include delivery of the units, labor to install, specified warranty, training and preventative maintenance and repair services. After systems acceptance, repair services and preventative maintenance checks will conducted for two years, on a quarterly basis with an evaluation of the following items below: 1. Pressure checks 10. Thermostat 2. Volume checks 11. Unloader Valve 3. Nozzle Size 12. Press/ Flow Switch 4. Ignition 13. Fuel Filter 5. Air Mixture 14. Burner Pilot 6. Belt Tension 15 Trigger Gun 7. Oil Level 16. Wiring 8. Float Valve 17. Hose Inlet 9. Relief Valve 18. Hose Outlet 19. AMP draw pump / burner motor