TM 1-1520-238-23
12-73
12.22.
APU FIRE PANEL CIRCUIT CARD REPLACEMENT (AVIM) - continued
12.22.5. Inspection
a. Check panel for nicks, dents, or cracks (para
12.16).
b. Check wires for cuts, nicks, fraying, or chaf-
ing (para 12.16).
c. Check switches for loose terminals, cracks,
and signs of overheating (para 12.16).
d. Check removed and attaching parts for corro-
sion (para 1.49).
12.22.6. Installation
WARNING
Soldering iron can cause severe
burns to personnel and start fires.
Observe all safety precautions when
using soldering iron. If injury occurs,
seek medical aid.
a. Solder identified wires (15) to new circuit card
(2). Use soldering iron and solder (item 189,
App F) (TM 55-1500-323-24).
b. Install post (11) on circuit card (2) and panel
(7).
(1) Position circuit card (2) on panel (7).
(2) Install screw (14) through panel (7) into post
(11).
(3) Install screw (12) and washer (13).
c. Install connector (1) on circuit card (2).
(1) Install four screws (3), washers (4), and nuts
(5).
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M04-3520-3
7
12
2
15
14
1
3
5
11
13
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