1. First, mark the connection location of the faulty thermocouple, loosen the fixture of the faulty thermocouple, disconnect the two wires and the shielding layer wire connected to the thermocouple, and pull out the damaged thermocouple from the sleeve.

2. When installing a new thermocouple, straighten the thermocouple element and carefully push it into the sleeve. Try to hold the base of the thermocouple element when pushing it in to prevent it from being twisted. Insert its end into the corresponding temperature measurement hole on the air deflector inside the heating furnace,with the head protruding 40mm. To prevent the thermocouple from shifting due to thermal expansion and contraction, it should be fixed on the fixture connected to the furnace body.

3. Finally, connect the thermocouple element to the terminal of the glass tempering furnace, ensuring the correct polarity and maintaining the same installation position as before.