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TM 55-2915-335-30&P
2-11. PUMP CANISTER - lNSPECT/REPLACE (Cont)
2-11
3. INSPECTION
a.
b.
c.
d.
e.
f.
Run your finger along the packing groove in the
pump housing. Feel for any scratches or sharp
edges that may damage preformed packing.
Remove sharp edges of nicks or scratches using a
500 or 600 grit, wet or dry, emery paper. After
sanding, clean surface with solvent.
If edge of packing groove is broken off replace
pump housing per the instructions and illustra-
tions in paragraph 2-15.
Visually inspect canister wall (surface A) and top
(surface B) for dents. If there is any dentin sur-
face, discard canister.
Place canister with flange down, on a flat surface.
Check for any twisting, warping or damage that
would prevent flange seating flush on surface. If
any portion of flange surface C is raised from flat
surface, discard canister.
Inspect umbrella seating surface, area D, for nicks
or scratches. If nick or scratches cannot be com-
pletely removed by polishing with 500 or 600 grit,
wet or dry emery paper, replace canister. When
polishing sealing surface, moisten emery paper
with water. Wipe surface clean with solvent.
Inspect canister bleed ports for blockage. Remove
any blockage using a wooden toothpick, or similar
object.
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