TM 10-7310-241-12&P
Change 1 4-22.7
4-16.1 REPLACING THE CONTROL PANEL ASSEMBLY FOR MODEL 471012 (Continued)
(1) Remove the control panel (Subparagraph 4-16.1a, steps (1) thru (4)), and the base plate
(Subparagraph 4-16.1q, steps (1) thru (3)).
(2) Unscrew the thermistors (1) and (3) and the thermal switch (9).
(3) Disconnect the heating element (electrical element) leads (10) from the heating element wires attached
to the circuit board.
(4) Unsolder the leads (1) from the indicator lights .
(5) Unsolder the wires connected to the receptacle (2) and the switch (3).
(6) Remove the screw, washer, and lock nut (4) that secure the power transistor (5) to the control panel.
(7) Remove the four lock nuts and four washers (6) that secure the circuit board (7) to the control panel.
(8) Remove the circuit board (7) and the thin gray isolator (8).
CAUTION
Ensure the thermistor attached to location "SIDE" on the Circuit board is
screwed to the side of the container. Ensure the thermistor attached to
location "BASE" on the Circuit board is screwed to the base of the
container, next to the heater. This base thermistor should have blue heat
shrink tubing on the wires for identification purposes.
i. Installing the Circuit Board.
(1) Apply some insulating compound to both of the thermistors (9) and the thermal switch (10).
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2
3
5
4
6
7
8
9
10
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