Superheat Switch: Testing and Inspection
INSPECTIONCOOLING TEMPERATURE SWITCH <2400>
CAUTION: Do not heat more than necessary.
1. Dip the metal part of the cooling temperature switch into engine oil and increase the oil temperature using a gas burner or similar.
2. When the oil temperature reaches the standard value, check that voltage is supplied between the terminals.
NOTE: When the oil temperature is 155 °C (311T) or more and there is no continuity, the resistance will not be 2 ohms or lower until the oil temperature reduces to 125 °C (257 °F) or less.