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 TM 55-1905-219-14-8
4-5. GENERAL (Continued).
Table 4-3A. Portable Fire Pump (PE-250) - Pump Troubles
(Continued).
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
3. Pump will not pump water or is not pumping enough.
Step 1.
Clogged strainer-foot valve.
Clean strainer-foot valve.
Step 2.
Foreign matter in suction hose.
Clean suction hose.
Step 3.
Clogged discharge valve.
Clean discharge valve, refer to paragraph 4-7.3A.
Step 4.
Foreign matter in discharge hose.
Clean discharge hose.
Step 5.
Clogged pump impeller waterway.
Clean impeller waterways, refer to paragraph
Step 6.
Engine lacks power.
Refer to table 4-2A step 4.
4-26
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