INSPECTION


THERMOSTAT CHECK

1.Immerse the thermostat in water, and heat the water while stirring. Check the thermostat valve opening temperature.

    Standard value:

      <4G6, 6B3> 82 ± 1.5 °C
      <4N1> 82 ± 2 °C

2.Check that the amount of valve lift is at the standard value when the water is at the full-opening temperature.
note Measure the valve height when the thermostat is fully closed, and use this measurement to compare the valve height when the thermostat is fully open.
Standard value:

    Full-opening temperature: 95 °C
    Amount of valve lift:

      <4G6, 4N1> 8.5 mm or more
      <6B3> 9.0 mm or more