TM 55-1905-222-14
6-6 REPAIR RAMP HOIST HYDRAULIC PUMP (Continued).
CLEANING
CLEAN ALL PUMP PARTS
WARNING
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 (3859 ).
F
-
C
a
Wash all metal parts in cleaning
solvent Fed Spec P-D-680.
b
Blow parts dry with filtered,
dehydrated air and place them on a
clean surface for inspection
INSPECTIO
N
INSPECT RAMP HOIST HYDRAULIC
PUMP
a
Inspect surfaces of wear plate,
pressure plate, ring and rotor for
scoring and excessive wear. Light
scoring may be carefully stoned or
lapped Discard parts that are
heavily scored
b
Check edges of vanes for wear
Vanes shall not have excessive play
in rotor slots or burrs on edges.
c
Inspect inside diameter of bushing
(24) Remove bushing if wear or
scoring is evident If wear plate is
to be replaced, do not remove
bushing, as a new plate comes with
bushing Inserted.
d. Rotate the bearing while applying
pressure to check for wear,
looseness and pitted or cracked
races.
6-21