TM 1-1520-238-23
Change 4
5-167
5.35.
MAIN ROTOR STRAP PACK REPLACEMENT – continued
(6) Run nuts (6) up until washer (10) contacts
lower shoe (9).
NOTE
Go to step b.(3) for PLI washer proper
installation sequence.
(7) Install six new PLI washers (12) in proper
sequence, and new nuts (6), two at a time, on
remaining bolts (11).
CAUTION
Tighten nuts only. Do not allow bolts to
turn in main rotor hub. Damage to main
rotor hub and lower shoe can result.
(8) Tighten nuts (6) on two bolts (11) one half turn
at a time until lower shoe (9) contacts hub
(15).
(9) Run on remaining six nuts (6) until washer
(10) contacts lower shoe (9).
(10) Hold eight bolts (11) and torque nuts (6) to
480 INCH-POUNDS. Use torque wrench,
adapter, hinged handle, and sockets.
NOTE
Measurement only applies to strap pack
that was replaced.
c. Measure and record gap between each leg
(20) of strap pack (13) and lower plate (21).
Use gap setting gage.
(1) If any gap measures 0.010 INCH or less, go
to step d.
(2) If all gap measurements are greater than
0.010 INCH, go to step e.
GO TO NEXT PAGE
M04-3734-27
11
11
11
12
15
10
9
6
13
M04-3734-31A
0.010 INCH OR LESS
20
21
