COMAC ARJ21-700 - Page 60

ARJ21-SVV19-13120-00
RampServicingOperation
Instruction
(1)Refuelanddefuelpanelislocatedintherightwingbetween3-4rib,1.90mmeanheightfrom
ground.
(2)Refuelanddefuelconnectordiameteris2.5in,complywithISO45standard.
(3)Therefuelpressure:3.45bar±0.345bar(50psi±5psi).
B.Refuelanddefuelpanel
(1)REFUELSELECTIONSwitch(redguarded)
(a)AUTO:AutomaticRefuelingMode.Inthismode,fuelquantityreachesthepresetvalue,
theRefuelShutoffValvewillbeclosed.
(b)MANUAL:ManualRefuelingMode.Therefuelshutoffvalveneedstobemanuallycon-
trolled.
(2)Left(Right)RefuelShutoffValveCLOSED(LH(RH)TANKCLOSED)Indicator
(a)Whileapplyingrefuelingpressuretotherefuelingsystem,thelightilluminatestoindicate
thattheLeft(Right)RefuelShutoffValveisautomaticallyclosed.
(3)Refuel/Defuelindicator
(a)Itindicatesthetankfuelquantityandrelatedfaultmessages.Theuppercolumnshows
currenttotalfuelquantity.Thepreselectquantityshowsonthelowercolumnduring
automaticrefuelingandshows0duringmanualrefueling.
(4)POWERSELECTIONSwitch(redguarded)
(a)NORMAL:Usenormalpower.
(b)BATTERY:UseDCbatterypower.
(5)DefuelShutoffValveOPEN(DEFUELINGOPEN)Indicator
(a)ThislightcomesontoindicatethattheDefuelShutoffValveisinOPENposition.
(6)LH(RH)TANKREFUELINGSwitch(redguarded)
(a)OPEN:Opentheleft(right)tankRefuelShutoffValve.
(b)CLOSE:Closetheleft(right)tankRefuelShutoffValve.
(7)INCR/DECRSwitch
(a)Itisathree-positionswitchandisusedtoincreaseanddecreasethepreselectrefuel
quantityinAutomaticRefuelingMode.
(b)Middleposition:Defaultposition.Whenyousettheswitchtootherpositionsandthen
releaseit,theswitchwillautomaticallymovebacktotheneutralposition.
(c)INCR:MomentarilysettheswitchtoINCRtoincreasethepreselectrefuelquantity.
(d)DECRT :MomentarilysettheswitchtoDECRTtodecreasethepreselectrefuelquantity.
(8)TKSEL/TESTSelectSwitch
(a)Itisathree-positionswitchandisusedtoswitchbetweenfuelquantityindicationsand
testthefuelquantityindicatingsystem.
(b)Middleposition:Defaultposition.Whenyousettheswitchtootherpositionsandthen
releaseit,theswitchwillautomaticallymovebacktotheneutralposition.
ARJ21-A-13-12-00-03A-030A-A
Issue001,2023-01-29
Page12of13
Applicableto:ALL