COMAC ARJ21-700 - Page 147

ARJ21-SVV19-13120-00
RampServicingOperation
Instruction
(a)Allpitot-staticprobes
(b)Icedetector
(c)T otalairtemperaturesensor
(d)AngleofAttackSensor
NOTE:
Don'tlettheangleofattacksensorimpactedbythewaterowsdirectly.Toprevent
themoisturefromenteringtheangleofattacksensorandbaseconnectedstruc-
ture,it'srecommendedtoincreasewaterproofaroundtheangleofattacksensor.
(e)Coldairinletofairintake
(f)Engineinlet
NOTE:
Wheninstallingtheengineinletcover,makesurethattheFADECcoolingairinlet
inthe12o'clockpositionoftheengineairintakeiscovered.
NOTE:
Theengineairinletprotectivecoverhastheriskoffadingwhenencounteringthe
aircraftcleaner.Duringcleaning,avoidthecleanersplashingontheprotective
coverandcausingtheprotectivecovertofadeandcontaminatetheengineair
inlet.
(g)Engineexhaustnozzle
(h)Engineanti-iceductexhaust
(i)APUcompartmentcoolingairinlet
(j)APUexhaustsilencer
(k)Wheel,brakeandtire.
(l)Ramairinlet(youcanalsouseTransparentPolyvinylFilm(18-041)andPressure-Sensitive
PlasticCoatedWaterproofT ape(18-040)toforprotection)
(m)Fueltankvent(youcanalsousePressure-SensitivePlasticCoatedWaterproofTape(18-
040))
(5)AttacharedpapertagthathasPITOT-STATICPROBESCOVEREDprintedonitinblackletters,
tothetopoftheleftcontrolwheelintheightdeck.
CAUTION:WHENEVERANOPENINGISCOVERED,MAKESURETHATTHECOVERISVISI-
BLEFROMTHEGROUND.ENGINESSHOULDNOTBEOPERATEDWITHCOVERS
INPLACEBECAUSETHECOVERSCANCOMEOFFANDDAMAGETHEENGINES.
CAUTION:DONOTSPRAYDETERGENTORWATERDIRECTLYINTOORATANYOFTHE
OPENINGSLISTEDBELOWUNDERANYCIRCUMSTANCES,OTHERWISEDAM-
AGETOTHEAIRPLANECOULDOCCUR.
(6)UsePressure-SensitivePlasticCoatedWaterproofT ape(18-040)toprotectthesecutoutareas:
(a)APUexhaustport
(b)Outowvalve
CAUTION:PUTACOVERONTHEWHEELBEARINGSOFTHELANDINGGEARBEFOREYOU
CLEANTHEAIRPLANE.WATERORCLEANINGSOLUTIONSCANCAUSEDAM-
AGETOTHEWHEELBEARINGS.
(7)UseTransparentPolyvinylFilm(18-041)tocovertheseareastoprotectrelatedcomponents:
(a)Allthegapsbetweentheailerons,aps,slats,spoilersandthewings
ARJ21-A-13-12-15-01A-250A-A
Issue001,2023-01-29
Applicableto:ALL
Page7of11