TM 1-1520-238-23
15-160
Change 3
15.42.
APU ENCLOSURE INSTALLATION - continued
a. Install aft bulkhead (1).
(1) Position bulkhead (1).
(2) Push forward to engage spring clips at fire-
wall (2) and deck (3).
(3) Install exhaust duct (para 15.40).
b. Install flame detector (4) on aft bulkhead (1), if
previously removed.
NOTE
Ensure that flame detector lens is point-
ing up.
(1) Position flame detector (4) on aft bulkhead
(1).
(2) Install two screws (5) through flame detector
(4) and aft bulkhead (1).
(3) Hold screws (5). Install two washers (6) and
nuts (7).
c. Attach connector P79 (8) to receptacle
(A11)J1 (9).
d. Install lower center cover (10).
(1) Aline cover (10) and lock three fasteners (11).
(2) Install five screws (12) with washers (13).
e. Install screw and washer through forward
right corner of center aft catwalk panel (para
2.84).
f. Install center forward catwalk panel (para
2.84).
g. Install forward catwalk panel (para 2.84).
h. Seal three panel brackets at floor on center
cover (10). Use sealing compound (item 176,
App F).
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