TM 1-1520-238-23
15-137
15.37.
APU PLENUM DRAIN HOSE REPLACEMENT - continued
NOTE
Place rags under work area to catch fuel.
c. Remove drain hose (1) from check valve (2)
and fitting (3).
(1) Hold valve (2). Remove nut (4).
(2) Hold fitting (3). Remove nut (5).
(3) Remove drain hose (1).
15.37.4. Cleaning
a. Clean removed and attaching parts (para
1.47).
15.37.5. Inspection
a. Check APU plenum drain hose and connect-
ing hardware for cracks and damaged
threads. None allowed.
b. Check removed and attaching parts for corro-
sion (para 1.49).
15.37.6. Installation
a. Install new hose (1) on fitting (3) and valve (2).
(1) Hold fitting (3). Install nut (5).
(2) Hold valve (2). Install nut (4).
b. Inspect (QA).
c. Install APU enclosure upper center cover
(para 15.42).
END OF TASK
1
4
2
5
3
M04-1665-2
M04-1665-3
3
5
1
4
2