TM 1-1520-238-23
7-581
7.153.
ENVIRONMENTAL CONTROL UNIT FORWARD AIR TUBE REMOVAL/INSTALLATION – continued
7.153.6. Installation
a. Lubricate new packings (6), (7), (8), and (9).
Use petrolatum (item 138, App F).
b. Install packing (9) on duct (3).
c. Install packing (8) on manifold (2).
d. Install tube (1) on manifold (2) and duct (3).
(1) Install packings (6) and (7) on tube (1).
(2) Install tube (1).
(3) Install coupling (4) on tube (1) and manifold
(2).
(4) Install coupling (5) on tube (1) and duct (3).
e. Inspect (QA).
f. Perform pressurized air system leak check
(para 7.115).
g. Secure access doors T250L, T250R, T290L,
T290R, and L325 (para 2.2).
END OF TASK
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