TM 1-1520-238-23
15-146
Change 2
15.39.
APU DRAIN TUBE REMOVAL/INSTALLATION - continued
15.39.3. Removal
a. Remove aft drain tube (1) from adapter (2).
(1) Hold flats (3) of adapter (2). Remove coupling
nut (4).
(2) Remove tube (1) from grommet (5).
b. Remove intermediate drain tube (6) from tee
(7).
(1) Hold flats (8) of tee (7). Remove coupling nut
(9).
(2) Remove tube (6) from grommet (10).
c. Remove forward drain tube (11) from union
(12).
(1) Hold flats (13) of union (12). Remove cou-
pling nut (14).
(2) Remove tube (11) from grommet (15).
15.39.4. Cleaning
a. Clean removed and attaching parts and sur-
faces (para 1.47).
15.39.5. Inspection
a. Check fittings for bends, thread damage, and
torn, worn, or missing grommets.
b. Check removed and attaching parts and sur-
faces for corrosion (para 1.49).
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