TM 55-1615-226-40
CAUTION
Use suitable support
under tang ofscissors to
prevent damage during
pressing operations.
(1) Press bearing (49) and liner out of scissors
level (6).
(2) Clean scissors lever using solvent (item
11, table 1-2).
(3) Apply primer (item 10, table 1-2) to
mating surfaces of new liner and scissors lever.
(4) Press liner into scissors lever.
(5) Remove lubrication fitting (48) from scis-
sors lever.
(6) Using lubrication fitting hole as a guide,
drill one 0.092- to 0.098-inch diameter hole through
liner.
(7) Ream liner 1.2488- to 1.2493-inch
diameter.
(8) Clean liner thoroughly using compressed
air.
(9) Apply primer (item 10, table 1-2) to
mating surfaces of new bearing (49) and liner.
(10) Press bearing (49) into liner.
(11) Ring stake sleeve around bearing at both
sides. See view F, figure 2-1. Test after installation by
applying proof load of 500 pounds in both directions.
Apply load to outer race only. Do not apply load to
inner race. This is a sign-off inspection point.
i. Score marks on the inside surface of holes and
bushings may be polished out if damage is 0.002 inch
or less.
NOTE
Polish out mechanical and
corrosion damage blend-
ing the repair smoothly
into the surrounding sur-
face.
Polish out mechanical
damage only to a depth
sufficient to remove traces
of the damage. Polish out
corrosion damage to twice
the depth of the pit.
Do not remove more
material than necessary to
effect repair as described.
Do not use grinding wheel.
Polish out mechanical or
corrosion damage with fine
to medium grade abrasive
cloth (item 2, table 1-2) or
fine India stone, and final
polish to a scratch-free
finish with crocus cloth
(item 3, table 1-2).
Cadmium plating removed
by repair should be reapplied
by brush cadmium plating
(item 4, table 1-2). Repair
areas on aluminum anodized
surfaces with brush alodine
(item 9, table 1-2).
2-26. Hub and Collective Sleeve.
2-27. Replace or repair components of the hub and
collective sleeve as follows
a. Replace hub (37, figure 2-1) if fbund defective
by magnetic particle inspection.
b. Replace hub if it fails to meet inspection re-
quirements outlined in paragraphs 2-20b, c, and d.
c. Replace sleeve (45) if found defective by mag-
netic particle inspection.
d. Replace sleeve (45) if it fails to meet inspection
requirements as outlined in paragraphs 2-20f, g, h, or i.
e. Replace plate set (33) if found to be defective by
fluorescent penetrant inspection or if spline teeth are
damaged.
f. Replace nut (36) if found to be defective by mag-
netic particle inspection or if threads are damaged.
g. Replace nut (41) if found to be defective by mag-
netic particle inspection or if threads are damaged.
h. Replace flange (32), lock plate (35), shoulder
ring (39) pin (40) bearing seta (42) or spacer set (43)
if they fail to meet inspection requirement. Bearings
seta (42) should be replaced as matched sets only
i. Replace seals (38 and 44).
j. Repair mechanical damage to hub as follows:
NOTE
Damage in any one area
must not exceed 0.25
Change 42 - 9
