TM 1-1520-238-23
13-9
13.3.
ENVIRONMENTAL CONTROL UNIT (ENCU) REMOVAL/INSTALLATION - continued
e. Remove sleeve (22) from duct (23) and ENCU
(2).
(1) Loosen two clamps (24).
(2) Remove sleeve (22) and clamps (24).
f. Remove cuff (25) from duct (26) and ENCU (2).
(1) Remove tape (27) and separate cuff (25) vel-
cro strips.
(2) Remove cuff (25).
g. Remove sleeve (28) from duct (26) and ENCU
(2).
(1) Loosen two clamps (29).
(2) Remove sleeve (28) and clamps (29).
h. Remove ENCU (2) from support (30).
(1) Remove sealant from two forward bolts (31)
and washers (32) (para 1.47).
(2) Remove four bolts (31) and washers (32).
(3) Remove ENCU (2).
13.3.4. Cleaning
a. Wipe removed and attaching parts with a
clean rag.
13.3.5. Inspection
a. Check support and aft deck mounting area for
hole elongation, cracks, and stripped or dam-
aged threads (para 13.1).
b. Check ENCU inlet cooling air surfaces for dirt,
debris, and oil film (para 1.48).
c. Check sleeves and cuffs for rips or tears (para
13.1).
d. Check removed and attaching parts for corro-
sion (para 1.49).
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M04-719-7
23
22
24
2
24
2
29
27
25
M04-719-9
29
28
30
2
M04-719-1 1
32
31
