TM 1-1520-238-23
Change 4
7-551
7.144.
GROUND AIR CONNECTION MANIFOLD, ENGINE AIR FLEXIBLE CONNECTION HOUSING, AND
UTILITY TUBE REMOVAL/INSTALLATION – continued
e. Apply adhesive to both sides of new gasket
(14). Use sealing compound (item 156A, App F).
f. Install gasket (14) on manifold (2).
g. Install manifold (2).
(1) Install manifold (2) through firewall (17).
(2) Install three bolts (12) and washers (13).
(3) Slide housing (11) forward on air supply tube
(18) until centered. Tighten two clamps (10).
h. Install tube (5) on manifold (2) and adapter (7).
(1) Hold fitting (8). Install nut (9).
(2) Install nut (6) on adapter (7).
i. Install coupling (1) on manifold (2) and man-
ifold (3).
(1) Lubricate and install two new packings (4).
Use petrolatum (item 138, App F).
(2) Install coupling (1).
j. Inspect (QA).
k. Install start air valve and ground air connec-
tion flange (para 7.139).
l. Perform pressurized air system leak check
(para 7.115).
m. Secure access doors LN1, LN3, LN4, T250L,
T250R, T290L, T290R, and L325 (para 2.2).
END OF TASK
10
11
10
2
12
13
18
8
9
5
17
M04-089-10
14
7
6
2
1
3
4
M04-089-9
