Table 4-1A. Portable Fire Pump (PE-250) - Hard Starting or Will Not Start. - continued

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Table 4-1A. Portable Fire Pump (PE-250) - Hard Starting or Will Not Start.

TM-55-1905-220-14-8 Landing Craft Utility LCU 1671-1679 NSN 1905-01-009-1056 Manual

Table 4-1A. Portable Fire Pump (PE-250) - Hard Starting or Will Not Start. - continued

TM 55-1905-220-14-8

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 4-7.10A.

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.

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