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 TM 55-1905-222-14
6-12
REPAIR STEERING PUMP (Continued).
INSPECTION
INSPECT ALL PARTS
a.
Discard and replace the used shaft seal (27)
and all 'O' rings (14, 15 and 18).
b.
Check the bearings (23 and 26) for wear and
looseness. Check for pitted or cracked races.
Replace all defective bearings with new ones.
c.
Check the body (1), pressure plate (9), cam
ring (10) and rotor (12) for scoring and wear,
replace as necessary.
d.
Inspect the shaft seal mating surface on the
shaft (22) for scoring.
e.
Inspect shaft (22) for burrs or nicks. If marks on
the shaft cannot be removed by light polishing,
replace the shaft (22).
f.
Inspect the vanes (13) for burrs, wear and
excessive play in rotor (12) slots.
Replace
vanes (13) and rotor (12) if slots are worn.
g.
Stone all mating surfaces of body (1) and cover
(6) to remove burrs and sharp edges. Wash
and blow dry after stoning.
h.
Insert control valve (19) into. Its bore within
the cover (16). Rotate the control valve (19)
through 360 degrees while moving in and out of
the bore to test for bind. Check the valve for
wear and replace if worn or the lands are
scratched.
6-65
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