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 TM 55-1905-222-14
6-10
REPAIR RAMP WINCH (Continued).
g. Check divider plate for wear. If wear is
excessive or if the plate is buckled or does not
form a true circle, replace with a new part.
3. INSPECT DRUM AND BEARINGS.
a. Inspect and replace all 'O' rings and oil seals.
b. Check seal diameters at each end of drum for
roughness. Clean and polish the seal
diameters, using extra fine emery cloth. Check
the bearing hub diameters for scores and wear.
Replace drum If necessary.
c. Inspect 'O' ring seal face in bore of drum at the
splined end. Polish face with extra fine emery
cloth if roughness and scratches are found.
Replace drum If damage is excessive.
d. Inspect drum bushing for bruises, scores and
wear. Use a scraper to remove all high spots.
The original inside diameter of bushing is 2.190
inch. If wear is greater than 0.010 inch, replace
bushing.
e. Inspect all ball bearings for wear and pitting at
the balls and ball grooves. Replace bearings if
worn or pitted.
6-46
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