TM 1-1520-238-23
Change 8
1-155
1.48.
ENVIRONMENTAL CONTROL UNIT (ENCU) CLEANING (WATER WASH) – continued
c. Blow out two hoses (2). Use compressor and air
blow gun, set to discharge air at no more than 80
psi.
d. Run ENCU (4) (TM 1-1520-238-CL) at least 1
MINUTE while spraying solvent into inlet (1).
Use dry cleaning solvent (item 74, App F) and
cleaning gun set on coarse spray.
e. Rinse inlet (1) with clean water for at least 3
MINUTES.
f. Stop ENCU (4) (TM 1-1520-238-CL).
g. Install two hoses (2).
(1) Position two clamps (3) on two hoses (2). Do
not tighten.
(2) Install two hoses (2) on ENCU (4).
(3) Tighten two clamps (3).
h. Run ENCU (4) (TM 1-1520-238-CL) at least 1
MINUTE to eliminate water from ENCU ducts.
i. Install ENCU filter (para 13.12).
j. Remove external power – air (para 1.71).
k. Remove external power – electrical (para
1.70).
l. Secure access doors T250L, T250R, T290L,
T290R, and L325 (para 2.2).
END OF TASK
1
M04-3324-4A
4
3
2
