TM 9--2350--292--20--10107 00--2IMPACT WRENCH FAILS TO OPERATE OR DEVELOP FULL POWER --CONTINUED0107 00CONTINUED FROM STEP BCDoes pressure port gauge read 1650--1750 psi anddoes return port gauge read less than 75 psi?noyesCONTINUED ON NEXT PAGE1. Install 0--4000 psi testing gauge assembly withadapter in impact wrench pressure port(smaller of quick--disconnects) in therefuel/defuel stowage compartment.2. Install 0--300 psi dial pressure gauge withadapter in impact wrench return port (larger ofquick--disconnects) in the refuel/defuel stowagecompartment.3. Place flow control valve to closed position andset flow regulator to 0.5 setting.4. Start APU (TM 9--2350--292--10) and placesystem selector valve to fuel transfer position.Record gauge readings.5. Shut down APU (TM 9--2350--292--10).If pressure port is not1650--1750 psi go to Step E.If return pressure is not lessthan 75 psi go to Step F.DAre wrench, quick--disconnects, and connections free ofleaks, restriction, and damage?noyesCheck the impact wrench and quick--disconnectsand connections in stowage compartment for leaks,restrictions, and damage.Tighten leaking con-nections and removerestrictions. If restric-tions cannot be re-moved, or if part isdamaged, replace(WP 0570 00). Verifyfault is corrected.Troubleshoot impact wrench(TM 9--5130--338--12&P)FORWARDWARNING
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