TM 9-6115-664-13&P
4-41.
INTERNAL EXHAUST ASSEMBLY MAINTENANCE
2.
Inspect muffler blanket for damage. Check security
of attachment.
3.
Inspect silicon seal (15) on housing (16) for damage.
Ensure secure attachment. Replace as required
using silicon adhesive.
4.
Inspect housing gasket (17) for damage. Ensure
secure attachment. Replace as required using
silicon adhesive.
C.
INSTALLATION.
1.
Install
muffler
blanket
onto
internal
exhaust
assembly (7, Figure 4-31).
2.
Mate adapter pipe (6) to exhaust pipe (5) and secure
using screws (8) and lockwashers (9).
3.
Wrap insulating wrap around exhaust pipe (5) and
adapter pipe (6). Secure using safety wire.
4.
Apply anti-seize compound to threads of two screws
(12). Install exhaust assembly (11) and housing (16)
to APU enclosure using screws (12), lockwashers
(13), and washers (14).
5.
Connect exhaust inlet hose (1) to fan shroud hose
(2) and tighten clamp (3).
6.
Connect flexible exhaust hose (4) to adapter pipe
(6). Secure using hose clamp (5).
7.
Install external muffler (Para. 4-40). Attach inline
fuel filter to mounting bracket (Para. 4-44).
8.
Install fuel module (Para. 4-30). Install APU cover
assembly (Para. 4-12).
Figure 4-31. Exhaust Assembly
4-101
