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 TM 55-1905-221-14-3
6-11.
MOTOR, HYDRAULIC, RAMP WINCH (Continued)
LOCATION/ITEM
ACTION
REMARKS
CLEANING
5. Motor
Dry cleaning solvent, P-D-680, used to clean parts, is potentially dangerous to
personnel and property. Avoid repeated or prolonged skin contact. Do not use
near open flame or excessive heat. Flash point of solvent is 100- 138 (38 -
F
59C).
a. Clean all metal parts in
cleaning solvent, Fed. Spec.
P-D-680, and dry thoroughly.
b. Turn bearings by hand only
when cleaning.
INSPECTION
6. Motor
a. Inspect threaded parts for
thread damage.
b. Rotate needle bearing and ball
bearing by hand and check
for smooth and free rotation.
Also, inspect balls, needles,
and races for visible damage.
c.
Inspect rotor vane springs
for distortion or loss of
tension.
d. Inspect rotor vanes and pins
for burrs or nicks.
e. Inspect shuttle valve spool
for burrs or scoring.
f.
Check shaft keys for tight
fit in keyway.
6-111
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