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 TM 55-1905-222-14
6-17 REPAIR RECHARGING PUMIP (Continued).
b. Blow dry all parts, except needle
bearings, with compressed air Allow
needle bearings to air dry.
c. Remove foreign material from bleed
hole of piston.
INSPECTION
1. INSPECT PUMP COMPONENTS
a. Discard all 'O' rings (11, 23, 27, 30, 33
and 47) and oil seal (45), replace with new
parts.
b. Examine springs (13, 17, 25 and 34) to be
sure that they are not bent, chaffed or
otherwise deformed, replace springs as
necessary.
c. Inspect all check balls (14, 19, and 35)
and valve seats (18 and 36) for scoring or
other damage, replace as necessary.
d. Inspect piston (43) for scratches or
scoring, replace as necessary
e. Examine shaft (9) to be sure that it is free
of burrs Check to be sure the keyway is
not broken or rounded over, replace as
necessary
f. Inspect needle and roller bearings (41, 46
and 48) for wear, scoring, or grooving,
replace as necessary.
g. Examine pump housing (12) for cracks or
other damage.
Check threads for
damage; replace as necessary.
6-90
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