TM 9-4120-388-14
4-37. CONTROL PANEL - Continued.
(8) Disconnect plug (P7) from receptacle (J7).
(9) Loosen four captive panel fastener screws injunction box mounting flanges.
(10) Carefully slip junction box out far enough to gain access to control panel mounting screws.
(11) Remove four screws from control box.
(12) Remove grommet from bulkhead.
Take care that sensing bulb capillary line is not kinked and that bulb and capillary
are not cut or damaged during removal.
(13) Carefully slip remote sensing bulb down through bulkhead hole and remove control panel from unit.
b. Test/Replace/Repair. See the following paragraphs for individual component test, replacement, and repair.
(2) Temperature control thermostat (S2). (See para 4-39.)
(3) Mode selector (rotary) switch (S1). (See para 4-40.)
c.
Installation.
(1) Secure control panel to junction box with four screws.
Take care that sensing bulb capillary line is not kinked and that bulb and capillary
are not cut or damaged during installation.
(2) Carefully feed sensing bulb and capillary up and into conditioned air intake compartment. (See
(3) Install grommet in bulkhead.
(4) Secure remote sensing bulb with clamp, flat washer, Iockwasher, and screw.
(5) Coil excess capillary tubing in recess behind control panel.
(6) Connect (P7) plug and harness to receptacle (J7) on the control panel.
(7) Carefully move junction box into position and align mounting hardware.
(8) Tighten four captive panel screws in junction box mounting flanges.
(9) Secure filter and filter retainer with two captive turnlock stud fasteners.
(10) Secure intake grille assembly with six captive turnlock stud fasteners.
(11) Set the bottom of the lower front paneI in position so that the flange is inside the lip on the cabinet base.
(12) Push the top of the lower front panel back into position.
(13) Secure lower front panel to casing with two captive panel fastener screws.
(14) Connect power.