TM 1-1520-238-23
Change 8
15-151
CAUTION
Do not over torque coupling. Damage will
occur to the coupling, nozzle, and ple-
num.
b. Install exhaust nozzle (8) on plenum (9).
Torque nut (10) to 30 INCH-POUNDS.
(1) Install coupling (11) around flange of nozzle
(8) and plenum (9).
(2) Install nut (10) on coupling (11).
(3) Torque nut (10) to 20 INCH-POUNDS. Use
torque wrench.
(4) Tap around outside of coupling (11). Use
mallet.
(5) Torque nut (10) to 30 INCH-POUNDS. Use
torque wrench.
c. Install strut (1).
NOTE
Ensure lower strut is forward of bracket
and upper strut is aft of bracket.
(1) Pull strut (1) down to aline with lower strut
(20) and bracket (21).
(2) Install bolt (2) through washer (5), strut (1),
bracket (21), lower strut (20), and washer (4).
(3) Install nut (3) on bolt (2).
(4) Tighten nut (7) on bolt (6).
d. Inspect (QA).
e. Install APU enclosure upper center cover
(para 15.42).
NOTE
Torque check of exhaust coupling re-
quired after initial APU run.
f. Perform auxiliary power unit maintenance op-
erational check (TM 1-1520-238-T).
END OF TASK
5
20
2
4
3
21
1
12
7
6
1
10
11
M04-1566-6
9
8
