TM 55-1520-240-23-4
5-87.1
INSPECT SHOCK ABSORBER WITH TEFLON BEARINGS
(Continued)
5-87.1
2.
Mount dial indicator (3) on outboard bracket (4).
Position indicator plunger (5) against outboard
end of rod end (6), at mid-stroke of plunger. Align
with rod end axis.
3.
Record indicator (3) reading.
4.
Have helper apply force to tip of blade (1) at
leading edge (7). Blade should just move.
Record indicator (3) reading A.
5.
Have helper apply force to tip of blade (1) at
trailing edge (8). Blade should just move. Record
indicator (3) reading B.
NOTE
A gap between top of bracket (4) and
flange of bushing (8.1) is allowed.
Bushing may contact bolt head.
Bushing (8.1) is not allowed to rotate.
If bushing (8.1) rotates, replacement
is mandatory.
6.
Subtract reading B of step 5, from reading A
of step 4. Result must not be more than 0.010
inch. If not more, go to step 12. If more, perform
steps 7 thru 11 then go to step 12.
7.
Disconnect shock absorber (9) at outboard
bracket (4) (Task 5-87).
8.
Check bolt (10) for wear. Bolt bushing (11) shall
be smooth with no radial wear marks. Measure
diameter of bushing at several places. Use a
micrometer. Minimum diameter of bushing shall
be 1.090 inch.
9.
Install bolt (10) in bracket (4). Position indicator
plunger (5) against shank of bolt (10). Align with
bolt axis. Use plunger with flat end (12).
10.
Check bolt (10) movement. Attempt to move bolt
toward, then away from plunger (5). Movement
shall not be more than 0.0015 inch.
11.
If results from steps 9 and 10 are not cause of
excess movement, replace rod end (6) (Task
5-88).
5-526
