TM 5-4520-241-14
(4) The bimetallic heater/sensor must trip the RESET switch within 60 to-90 seconds at an ambient temperature
between 65 and 75F (18 to 24C). If the time delay operates within this range, no adjustment is required.
(5) If the time delay is outside the specified range, adjust the bimetallic heater/sensor by turning the slotted head
screw
that moves the end of the sensor closer to or farther from the reset switch. If the time delay was too short, allow the parts
to cool for 5 minutes, then turn the screw counterclockwise 1/4 turn. Retest per steps (3) and (4). If the time was too
long, allow the parts to cool for 5 minutes, then turn the screw clockwise 1/4 turn. Retest.
(6) When the adjustment is correct, turn off the power and disconnect the power plug. Reconnect the brown lead
to terminal G, and the yellow lead to the electrical connector. Close the control box cover. Check the heater for proper
operation.
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