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 TM 55-1905-221-14-4
6-41. POWER TAKE OFF COUPLING AND VIBRATION DAMPER (Continued).
LOCATION/ITEM
ACTION
REMARKS
INSPECTION (Cont)
4.
Vibration
a. Inspect the damper to see that
Damper
the rubber is firmly bonded to
the metal parts at each side.
If the damper has been exposed
to fuel oil, lubricating oil or
excessive heat, the rubber may
have become loosened from the
metal. In this event, the
damper should be discarded and
replaced with a new one. Also,
check to see that the metal
discs are not bent.
b. If damage to the vibration
damper is extensive, inspect
the crankshaft as outlined in
paragraph 6-28.2. A loose or
defective vibration damper,
after extended operation, may
result in a cracked crankshaft.
c. Inspect the damper inner (33)
and outer (16) cones, damper
hub (13) and the end of the
crankshaft for galling or burrs.
Slight scratches or burrs may be
removed with emery cloth. If
seriously damaged, the parts
should be replaced and the end
of the crankshaft refinished.
Check the outside diameter of
the inner cone for wear at the
crankshaft front oil seal
contact surface. If worn,
the oil seal and cone should
be replaced.
6-932
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