TM 1-1520-238-23
5-195
5.43.
MAIN ROTOR HEAD ASSEMBLY (AVIM) – continued
m. While holding strap pack (13) in horizontal
position, measure and record gap between
each leg (22) of strap pack (13) and hub plate
(11). Use gap setting gage.
(1) If any gap measures 0.010 INCH or less, go
to step n.
(2) If all gap measurements are greater than
0.010 INCH, go to step o.
NOTE
No more than three spacers may be
installed at any single bolt hole.
PLI washers will be reused if torque
did not exceed the 480 INCH-
POUNDS in step l.
n. Install third spacer (12) at any gap identified in
step m.
(1) Remove nut (15), washer (21), PLI washer
(16), and bolt (14) (one at a time) on any gap
identified in step m.
(2) Separate shoe (10) and spacers (12) from
strap pack (13).
(3) Install third spacer (12) between strap pack
(13) and original spacers (12).
(4) Aline bolt hole in hub (2), strap pack (13),
spacers (12), and shoe (10).
(5) Install bolt (14) through PLI washer (16), hub
(2), strap pack (13), spacers (12), and shoe
(10).
(6) Install nut (15) and washer (21) on bolt (14).
(7) Tighten nut (15) until washer (21) contacts
shoe (10).
GO TO NEXT PAGE
M04-247-6
22
11
0.010 INCH OR LESS
13
M04-247-8
15
13
10
21
2
14
16
11
12
12
M04-247-9
13
