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 TM 55-1905-220-14-8
4-5. GENERAL (Continued).
Table 4-1. Portable Fire Pump (P-250) Ignition Troubleshooting.
NOTE
portable fire pump. Tables 4-1A thru 4-3A apply to
the Prosser PE250 electric start portable fire pump.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
1. Spark plug problems.
Step 1. Loose in cylinder head.
Refer to paragraph 4-7.5.
Step 2. Loose connection.
Refer to paragraph 4-7.5.
Step 3. Spark gap not properly adjusted.
Refer to paragraph 4-7.5.
Step 4. Fouled.
Refer to paragraph 4-7.5.
Step 5. Burned out.
Refer to paragraph 4-7.5.
Step 6. Faulty gasket.
Refer to paragraph 4-7.5.
2. Breaker points - magneto.
Step 1. Improperly adjusted.
Refer to paragraph 4-7.5.
Step 2. Pitted or corroded.
Refer to paragraph 4-7.5.
4-9
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