TM 55-1520-240-23-3
3-41
REPAIR AFT LANDING GEAR SHOCK STRUT (AVIM)
(Continued)
3-41
REMOVE BEARINGS
4.
Place strut (1) in an arbor press. Use the press
to remove bearing (2 or 3) (TM 55-1500-322-24).
Note that cap bore (4) has a shoulder (5) that
requires bearing (2) to be removed in one
direction only.
5.
Clean cap bore (4) and piston bore (6). Use
acetone (E20) and clean cloths (E120). Wear
gloves (E184.1).
REPAIR BEARING BORE
6.
Measure diameter of bore (4) at several places.
If all measured diameters of bore are 1.3745
inches or less, go to step 9. If diameter at any
one place is over 1.3745 inches, repair bore as
in step 8.
7.
Measure diameter of bore (6) at several places.
If all measured diameters of bore are 1.4378
inches or less, go to step 9. If diameter at any
one place is over 1.4378 inches, reject strut (1).
8.
Repair cap bore (4) as follows:
a.
Drill out cap bore (4) to 1.4940 to 1.4945
inches.
b.
Chamfer both sides of bore (4) 0.022 to
0.042 inch by 45º.
INSPECT
c.
Coat liner (7) (E-55) with epoxy primer
(E292). Wear gloves (E184.1).
Liner must be installed as shown.
Otherwise, it may fail in use.
d.
Install liner (7) wet with primer in bore (4),
with shoulder (5) as shown. Use arbor press,
(TM 55-1500-322-24). Press liner in flush
with cap lug (8).
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