TM 10-4930-236-13&P
Table 5-1. Direct Support Maintenance Troubleshooting-CONT
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
1
ELECTRIC MOTOR WILL NOT RUN
Step 1.
Check for foreign material in volute housing that would prevent the impeller from turning. (Para. 5-4)
Remove foreign material.
Step 2.
Check electric motor for proper operation.
Replace motor. (Para. 5-4)
2
PUMP IS NOISY
Step 1.
Check for foreign material in volute housing. (Para. 5-4)
Remove foreign material.
Step 2.
Check for loose impeller.
Tighten impeller or replace defective parts. (Para. 5-4)
3
PUMP LEAKS
Step 1.
Inspect for defective gaskets, O-rings and seals or mounting screw compression inserts.
Replace defective parts. (Para. 5-4)
4
TANKS WILL NOT BOTTOM LOAD
Bottom loading valve malfunction.
Remove and repair bottom loading valve (Para. 5-8)
5
FUEL FLOW WILL NOT STOP WHEN TANK IS FULL
Bottom loading valve malfunction.
Remove and repair bottom loading valve. (Para. 5-8)
5-2
