TM 9--2350--292--20--10106 00--4FUEL TRANSFER PUMP FAILS TO OPERATE -- CONTINUED0106 00HDoes gauge read 1650 -- 1750 psi?1. Install 0--4000 psi testing gauge assembly withadapter in impact wrench pressure port (smaller ofthe quick--disconnects) in the refuel/defuelcompartment.2. Place fuel pump control to CLOSED position andset flow regulator control handle to 0.5.3. Start APU (TM 9--2350--292--10) and set systemselector to AUX. Observe gauge.4. Shut APU down (TM 9--2350--292--10).noyesI1. Remove gauge from pressure port.2. Install 0--300 psi dial pressure gauge with adapter inimpact wrench return port (larger of quickdisconnects) in the refuel/defuel compartment.3. Place fuel pump control to CLOSED position and setflow regulator control handle to 0.5.4. Start APU (TM 9--2350--292--10) and set systemselector to AUX. Observe gauge and recordreading.5. Set flow regulator control handle to 6.0 and observegauge and record reading.6. Shut down APU (TM 9--2350--292--10).Are pressure readings below 75 psi?CONTINUEDFROMSTEPAnoyesGo to Step M.Replace flow controlvalve (WP 0555 00).Verify fault is corrected.CONTINUED ON NEXT PAGEWARNINGWARNING
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