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TM 10-4320-324-14
Table 4-2. Troubleshooting CONT.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
PUMP ASSEMBLY
1.
NO SUCTION OR DISCHARGE PRESSURE.
Step 1. Check for foreign matter in discharge valves.
Remove foreign matter.
Step 2. Inspect valves for leak.
Refer to paragraph 4-58 and replace valve.
Step 3. Inspect all connections and suction lines for leaks.
Tighten all connections.
Step 4. Check for damaged gauges.
Refer to paragraph 4-59 and replace gauges.
Step 5. Inspect for faulty seal or pump gasket.
Notify direct support maintenance.
2.
PUMP STOPS OR FAILS TO DELIVER RATED FLOW OR PRESSURE.
Step 1. Inspect for faulty seal or pump gasket.
Notify direct support maintenance.
Step 2. Check for clogged impeller.
Notify direct support maintenance.
Step 3. Inspect for broken impeller or wear plate.
Notify direct support maintenance.
Step 4. Check that pump is not driven too slowly.
Notify direct support maintenance.
3.
PUMP NOISY.
Step 1. Check for proper bearing lubrication.
Notify direct support maintenance.
4-16
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