6. COOLING SYSTEM                                                         UXV 500


 INSPECTION

 Visually inspect the thermostat for damage.        Thermostat

 Heat the water with an electric heating                           Thermometer
 element to operating temperature for five
 minutes.
 Suspend the thermostat in heated water to
 check its operation.
  Keep flammable materials away from
    the electric heating element.
    Do not let the thermostat or
    thermometer touch the pan, or you will
    get false readings.


 Replace the thermostat if the valve stays
 open at room temperature, or if it respond at
 temperatures other than those specified.

 Thermostat begin to open:
                    80-84°C (176-183°F)

 Valve lift:
   8 mm (0.3 in) minimum at 95°C (203°F)
                                                 Air Bleed Hole




 INSTALLATION

 Install the thermostat into the housing with
 its air bleed hole facing up and aligning
 bleed hole with the tab in the housing.




                                                 Tab              Align


6-9