TM 1-1520-238-23
10-558
Change 3
10.133.
AFT FUEL CELL NITROGEN INERT CHECK VALVE REMOVAL/INSTALLATION – continued
g. On forward side of bulkhead (5), remove tube
(12) from check valve (7).
(1) Hold nut (13). Remove nut (14).
(2) Remove tube (12) from valve (7).
h. Remove check valve (7) from bulkhead (5).
(1) Hold valve nut (15). Remove nut (13) and
washer (16) from forward side of bulkhead
(5).
(2) Remove valve (7).
10.133.4. Cleaning
a. Wipe removed and attaching parts with a
clean rag.
b. Clean sealing compound residue from access
panel and mounting area on transmission
deck (para 1.47).
10.133.5. Inspection
a. Check valve for nicks, dents, cracks, or
stripped threads (para 10.1).
b. Check valve for corrosion (para 1.49).
c. Check hose for cracks or breaks.
(1) Check hose nut and tube nut for nicks, dents,
or damaged threads (para 10.1).
d. Check access panel for nicks, dents, or
cracks (para 10.1).
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M04-3003-4A
14
12
7
13
5
M04-3003-5A
13
16
15
7
5
