TM 1-1520-238-23
Change 4
6-75
6.12.
INTERMEDIATE GEARBOX CENTRIFUGAL FAN, INPUT COUPLING, AND FLANGE
REMOVAL/INSTALLATION – continued
6.12.6. Installation
a. Install flange (3) on fan (1). Torque five nuts (7)
to 60 INCH-POUNDS.
(1) Position flange (3) on fan (1). Aline bolt holes.
(2) Install five bolts (8) through washers (9), fan
(1), and flange (3).
(3) Install five nuts (7) on bolts (8).
(4) Torque five nuts (7) to 60 INCH-POUNDS.
Use torque wrench.
(5) Apply corrosion preventive compound to five
bolts (8) and nuts (7). Use corrosion
preventive compound (item 62A, App F).
b. Install coupling (2) on flange (3). Torque five
bolts (6) to 125 INCH-POUNDS.
(1) Position coupling (2) on flange (3).
(2) Aline bolt holes of flange (3) with coupling
flange nutplates (10).
(3) Install five bolts (6) through fan (1), flange (3),
and coupling flange nutplates (10).
(4) Torque five bolts (6) to 125 INCH-POUNDS.
Use torque wrench and socket.
(5) Apply corrosion preventive compound to five
bolts (6). Use corrosion preventive compound
(item 62A, App F).
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M04-449-5
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M04-449-6
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