TM 1-1520-238-23
7-580
7.153.
ENVIRONMENTAL CONTROL UNIT FORWARD AIR TUBE REMOVAL/INSTALLATION – continued
7.153.3. Removal
a. Remove tube (1) from manifold (2) and duct
(3).
(1) Remove coupling (4) from tube (1) and man-
ifold (2).
(2) Remove coupling (5) from tube (1) and duct
(3).
(3) Remove and discard packings (6) and (7)
from tube (1).
(4) Remove tube (1).
b. Remove and discard packing (8) from man-
ifold (2).
c. Remove and discard packing (9) from duct (3).
7.153.4. Cleaning
a. Wipe removed and attaching parts with a
clean rag.
7.153.5. Inspection
a. Check tube, duct, and manifold for cracks,
dents, and scratches (para 7.114).
b. Check removed and attaching parts for corro-
sion (para 1.49).
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