TM 1-1520-238-T-710–100Change 510–17. FUEL CROSSFEED/BOOST SYSTEM – MAINTENANCE OPERATIONAL CHECK (cont)10–17TaskResultl. On pilot FUEL panel (fig. 10–46), set ENG 1switch to ON. Engine 1 fuelcrossfeed/shutoff valve indicator moves toaft position.(ADB)If FUEL XFEED circuit breaker (fig. 10–50)does not stay closed, go to paragraph 10–35E.If engine 1 fuel crossfeed/shutoff valve indicator doesnot move to aft position, go to paragraph 10–32.m. (ADB) On pilot and CPG caution/warningpanels (fig. 10–58), check that greenXFEEDindicators are lighted.If pilot and CPG green XFEED indicators are notlighted, go to paragraph 10–35C.n. (ADB) On pilot and CPG caution/warningpanels, check that amber XFEED indicatorsare not lighted.If amber XFEED indicators are lighted, go toparagraph 10–35D.o. On pilot FUEL panel, set BOOST switch toON. Fuel may be discharged throughengines 1 and 2 and nacelle overboarddrains.If FUEL BSTcircuit breaker does not stay closed, goto paragraph 10–43.If FUEL BOOST switch does not stay ON withCROSSFEEDswitches set to AFT TK, go toparagraph 10–45.p. On pilot caution/warning panel, check thatBOOST PMP ONindicator is lighted.If BOOST PMP ON indicator is not lighted, go toparagraph 10–23.q. On pilot FUEL panel, set CROSSFEEDswitch to NORM.BOOST switch moves toOFF. BOOST PMP ONindicator is notlighted. Engine 2 fuel crossfeed/shutoffvalve indicator moves to normal position(fig. 10–53).If BOOST switch does not move to OFF, go toparagraph 10–46.If BOOST PMP ON indicator is lighted with BOOSTswitch OFF, go to paragraph 10–25.If engine 2 fuel crossfeed/shutoff valve indicator doesnot move to normal, go to paragraph 10–27.r. On pilot FUEL panel (fig. 10–46), setCROSSFEEDswitch to FWD TK. Engine1and Engine 2 fuel crossfeed/shutoff valveindicators move to forward position(fig. 10–53).If engine 1 fuel crossfeed/shutoff valve indicator doesnot move to forward position, go to paragraph 10–30.If engine 2 fuel crossfeed/shutoff valve indicator doesnot move to forward, go to paragraph 10–28.(ADB)If FUEL XFEED circuit breaker (fig. 10–50)does not stay closed, go to paragraph 10–35H.s. (ADB) On pilot and CPG caution/warningpanels (fig. 10–59), check that greenXFEEDindicators are lighted.If pilot and CPG green XFEED indicators are notlighted, go to paragraph 10–35F.
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