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 TM 55-1905-222-14
6-10
REPAIR RAMP WINCH (Continued).
f.
Check the large pilot bore at the end of the final
housing used to carry the end cover. Remove
all roughness and scores carefully using a
scraper and extra fine emery cloth.
g. Inspect sun gear shaft. Check gear teeth for
wear. If wear is greater than .012 inch replace
the sun gear shaft.
h. Inspect taper seal ring for roughness or
scratches. If these defects are found replace.
2. INSPECT PRIMARY DRIVE ASSEMBLY.
a
Inspect and replace all 'O' rings.
b. Inspect retainer for distortion. Be sure that it
seats properly all around the bottom of the
groove in the bore of the segments. Check
segments for flatness, replace with new parts if
bent or distorted.
c. Inspect the primary planet assembly for defects.
Replace if necessary and send defective
primary planet assembly to general support
for repairs.
d. Inspect the teeth in the ring gear, replace if wear
is excessive.
e. Inspect the backing plate for wear or friction
face. If wear exceeds 1/16 Inch replace with a
new part (Original thickness - 0.627 inch).
Check external teeth for wear and replace if
necessary.
f.
Inspect friction surfaces of brake plates.
Replace plates if wear has removed the
grooves.
6-45
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