TM 55-1520-240-23-4
5-87.2
INSPECT SHOCK ABSORBER WITH ELASTOMERIC BEARINGS (Continued)
5-87.2
8.
With shock absorber rod end (4) free of bracket
(6), check bolt (3) for wear. Bolt shank (7) shall
be smooth with no wear. Measure diameter of
bushing at several places. Use a micrometer.
Minimum diameter of bushing shall be 1.090
inch.
9.
Install bolt (3) in bracket (6). Position indicator
plunger (13) against bolt shank (7). Align with
bolt axis. Use plunger with flat end (14).
10.
Check bolt (3) movement. Attempt to move bolt
toward, then away from plunger (13). Movement
shall not be more than 0.0015 inch.
11.
Replace bolt (3) and/or bushings in bracket (6)
if excessive play is detected, and reinstall shock
absorber.
12.
Disconnect shock absorber (5) at inboard bracket
(16) (Task 5-87). It may be helpful to have helper
push on trailing edge of blade to help extract
shock absorber (5) from bracket (16).
13.
Inspect the elastomeric bearing (18) and reject it
if any of the following conditions exist:
a.
Evidence of shim displacement on distortion
(19) with raising of elastomer (20).
b.
Permanent offset (21) of inner bushing.
c.
Loss of elastomer material exceeding 20
percent of the bearing thickness.
d.
Separation of inner race and elastomeric
(inner race turns by hand with elastomeric).
5-530
