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 TM 55-1905-219-14-8
4-5. GENERAL (Continued).
Table 4-1A. Portable Fire Pump (PE-250) - Hard Starting
or Will Not Start (Continued).
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
Step 4.
Spark plug cables loose or broken.
Tighten cable connections or replace as necessary.
Step 5.
Faulty ignition system.
Troubleshoot ignition system, refer to paragraph
3. Engine flooded.
Dirt in carburetor.
Replace, refer to paragraph 4-7.7A.
4.
Carburetor lean, too much air.
Step 1.
Dirt in idle fuel channels.
Replace carburetor, refer to paragraph 4-7.7A.
Step 2.
Hole in diaphragm.
Replace carburetor, refer to paragraph 4-7.7A.
Step 3.
Impulse line plugged.
Remove line and clean.
Step 4.
Leaky manifold gaskets.
Replace gaskets.
Step 5.
Leaky diaphragm check valve.
Replace carburetor, refer to paragraph 4-7.7A.
Step 6.
Faulty fuel delivery system.
Check fuel tank, lines and connector.
4-19
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