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TM 5-4320-306-24
Table 2-2. Organizational Maintenance Troubleshooting
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
Step 3. Check for clogged strainer
Remove and clean strainer (para 2-18)
Step 4. Inspect suction assembly strainer body and flanges for cracks or leaks
Repair or replace damaged suction assembly components (para 2-18)
Step 5. Inspect discharge check valve assembly for proper operation. Check that extension spring and
attaching hardware are tight and free of corrosion Inspect check valve assembly for evidence of leakage
and seal damage. When in closed position, check valve disc must make an airtight seal. Be sure valve
gasket disc is free to open with pump flow.
Repair or replace damaged discharge check valve (para 2-19 and 2-21)
Step 6. Check pump body for foreign material
a. Remove suction assembly (para 2 18) and discharge manifold assembly (para 2-19)
b. Inspect pump body for any foreign material or obstruction
10. PUMP OUTPUT LOW
Step 1. Be sure engine is primed
Step 2. Check that engine speed is properly adjusted for desired flow and conditions
Adjust engine speed
Step 3. In order, perform steps 1 through 6 of Malfunction 8.
2-29/(2-30 blank)
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