TM 1-1520-238-23
Change 6
5-151
5.32.
MAIN ROTOR LEAD LAG LINK BEARING RETAINER AND ROTOR HUB BEARING
REMOVAL/INSTALLATION – continued
CAUTION
To prevent damage to Teflon lining, do
not pound or force hub bearings out of
lead lag link.
c. Remove main rotor upper hub bearing (17).
(1) Remove sealing compound from attaching
hardware. Use spatula set.
(2) Remove lockwire from two bolts (18).
(3) Remove two bolts (18), washers (19), and
electrical leads (20).
(4) Remove bearing retainer (21), shim (22) (if
installed), and bearing (17).
d. Remove main rotor lower hub bearing (23).
(1) Remove sealing compound from attaching
hardware. Use spatula set.
(2) Remove lockwire from two bolts (24).
(3) Remove two bolts (24) and washers (25).
(4) Remove bearing retainer (26), shim (27) (if
installed), bearing (23), and pin (10).
5.32.4. Cleaning
a. Clean center bolt, link pin, bushings, clip, hub
bearings, retainers, and lead lag link, and re-
lated hardware (para 1.47).
5.32.5. Inspection
a. Check center bolt, link pin, clip, bearings, re-
tainers, lead lag link, and all related hardware
for damage and distortion. None allowed.
(1) Pay particular attention to the condition of the
Teflon lining in the lead lag link.
(2) Check Teflon for chips or tears. None al-
lowed.
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M04-230-4
18
19
21
22
20
17
27
26
25
24
10
23
M04-230-5
