TM 55-1520-240-23-10
13-39
INSTALL CABIN DUCTING
(Continued)
13-39
3.
Apply sealant (E340) to flange of each transition
diffuser duct (1). Wear gloves (E186).
4.
Position both transition diffuser ducts (1) on
structure. Install seven screws (12) and washers
(13) in each duct. Install screw (14) and washers
(15) in each duct.
5.
Apply sealant (E340) to flange of each flexible
duct (16). Wear gloves (E186).
6.
Position flexible ducts (16) under cabin floor (17)
and transition diffuser duct (1). Install 14 screws
(18) and washers (19) in each duct (1).
7.
Position two cover plates (20) over joints between
forward and aft diffuser ducts (5 and 9). Install
seven screws (21) and washers (22) in each
plate. Install two screws (23), washers (24), and
nuts (25) in each plate.
8.
Route ducts (16) through holes in bulkhead at
sta 160.
9.
Position support clamps (26) on flexible ducts
(16). Install screw (27) and washer (28) in each
clamp (26).
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