TM 1-1520-238-23
Change 4
6-157
6.33.
ENGINE NOSE GEARBOX FLEXIBLE COUPLING, VANEAXIAL FAN, AND INLET DIFFUSER
REMOVAL/INSTALLATION – continued
6.33.7. Installation
NOTE
Do not torque locknuts on gearbox studs
until step e. has been completed.
a. Install diffuser (17) on gearbox (18).
(1) Position diffuser (17) on gearbox studs (21)
with clamping catch (22) facing forward.
(2) Install six new locknuts (19) and washers (20)
on gearbox studs (21).
(3) Hand tighten locknuts (19).
b. Install adapter (15) on fan (6). Torque five bolts
(16) to 60 INCH-POUNDS.
(1) Position adapter (15) on fan (6).
(2) Aline bolt holes on adapter (15) with bolt
holes on fan (6).
(3) Install five bolts (16) through fan (6) and
adapter (15).
(4) Torque five bolts (16) to 60 INCH-POUNDS.
Use torque wrench.
c. Install coupling (7) in fan (6). Torque five bolts
(14) to 120 INCH-POUNDS.
(1) Position coupling (7) in fan (6).
(2) Aline bolt holes on coupling flange (23) with
bolt holes on installed adapter (15).
(3) Install five bolts (14) through rear of fan (6)
and coupling flange (23).
(4) Torque five bolts (14) to 120 INCH-POUNDS.
Use torque wrench.
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19
20
17
21
18
M04-0545-9
22
15
16
M04-0545-10
6
14
6
M04-0545-11
7
15
23
