TM 1-1520-238-23
5-105
5.20.
MAIN ROTOR HUB RETENTION NUT INSTALLATION – continued
z. Remove lockwire and check torque on 12 re-
taining ring bolts (5) by applying 225 INCH-
POUNDS of torque on each bolt.
(1) Use torque sequence from step f. Use torque
wrench.
(2) Retorque any bolt having less than 225
INCH-POUNDS. Use torque wrench.
aa. Ensure retaining ring (4) is free and floating
under bolt heads (5).
NOTE
Repeat steps e thru l if retaining ring is
not free and floating under bolt heads.
ab. Lockwire 12 bolts (5) in sets of three. Use wire
(item 225, App F).
ac. Inspect (QA).
ad. Install main rotor drive plate (para 6.96).
END OF TASK
5
M04-213-10
M04-213-8
MAST
5
RETAINER
4
5
M04-213-9
