TM 55-1905-219-14-8
4-7.4A. PUMP - MAINTENANCE INSTRUCTIONS (Continued).
LOCATION
ITEM
ACTION
REMARKS
CLEANING
3.
Observe no smoking regulation and avoid prolonged contact with, or inhalation of cleaning
solvents. Avoid use near heat or open flame and provide adequate ventilation.
Wear eye protection when using compressed air.
All removed
a. Wash all parts with
parts
general purpose
cleaner.
b. Remove scale or
Use sulphamic
salt deposits on
acid PS-120.
surfaces with scale
removing compound.
c. Dry all internal
parts with filtered
compressed air and
wipe dry with clean
cloth external sur-
faces.
d. Blow out all pass-
ages, hoses, pipe
fittings, and impel-
ler with filtered
compressed air.
INSPECTION
4. Pump and
a. Hoses
Inspect for abrasions,
Replace damaged
body
cuts, chafing, and
or leaking
permanent set.
hoses.
b. Threads
Inspect for nicks,
Replace all
burrs, and distortion.
worn or dam-
aged parts.
c. Gasket sur-
Inspect for nicks,
Smooth out
faces
burrs, and deterio-
minor nicks and
ration.
scratches with
fine emery
cloth.
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