TM 1-1520-238-23
12-136.2
Change 7
12.42.
FIRE EXTINGUISHER STOP CHECK VALVE REPLACEMENT continued
12.42.6. Installation
a. Install new check valve (2) on tubes (6) and
(7).
(1) Hold check valve (2). Use open end wrench.
(2) Install nut (8) and (9). Use open end wrench.
b. Install tube (1) on check valve (2) and swivel
(4).
(1) Hold check valve (2). Use open end wrench.
(2) Install nut (3) on check valve (2). Use open
end wrench.
(3) Install nut (5) on swivel (4). Use open end
wrench.
c. Inspect (QA).
d. If removed, install air duct No. 1 (para 13.17).
e. Secure access doors T250L, T250R, T290L,
T290R, and L325 (para 2.2).
END OF TASK
M04-993-5
6
7
8
2
5
1
3
9
4