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TM 5-4210-220-12
4-23. FUEL SYSTEM AND AIR INTAKE - Continued
(4)
Replace hose clips.
(5)
Carry out the INSPECTION preceding to ensure pump is up to specification.
b.
Pump Repair
(1)
The pump and motor are not repairable. If the tests carried out as detailed in INSPECTION preceding
indicate the pump has failed, replace the pump as detailed in INSPECTION.
(2)
Always soak a new pump and check the specification before installing in the hanger.
c.
Electrical Connection Repair
(1)
When carrying out the INSPECTION tests and the pump will not run, carry out the following.
(2)
Disconnect electrical lead from pump.
(3)
Connect ohmmeter (continuity tester) between the plug terminal on one end of the electrical lead and the
corresponding terminal on the other end.
(4)
If either wire is open circuit, replace lead.
(5)
Connect ohmmeter (continuity tester) between both terminals in the plug on one end.
(6)
Replace electrical lead if a short circuit exists. Check both plugs.
(7)
Check electrical plug on pump hanger flange similar to 3 thru 6 preceding. Replace electrical plug on
flange if it has failed.
4-397
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