COMAC ARJ21-700 - Page 146

ARJ21-SVV19-13120-00
RampServicingOperation
Instruction
3.Procedures
A.Preparation
WARNING:MAKESURETHATTHEWHEELCHOCKSAREINPOSITIONTOPREVENTTHE
INJURYTOPERSONNELANDDAMAGETOEQUIPMENTCAUSEDBYAIRPLANE
MOVEMENT.
(1)Parktheaircraftintothewind.
NOTE:
Becarefulwhenyoucleantheaircraftinveryhotweather.Theheatedsurfaceofthe
aircraftcandrythecleanersbeforeyoucanushthemwithwater.Thedriedcleaners
canstainthesurface.
NOTE:
Ifthetemperatureoftheaircraftsurfaceissohighthatyoufeeluncomfortablewhenyou
touchtheaircraftsurface,youmustcooltheaircraftsurfacewithwaterbeforecleaning.
WARNING:KEEPALLOFTHEEQUIPMENTTHATYOUUSEWITHFLAMMABLESOLVENTS
AWAYFROMSOURCESOFHEAT.IFTHEREISWIND,MAKESURETHATTHESOL-
VENTSDONOTFALLONEQUIPMENTORWARMCOMPONENTS.ITPREVENTS
EXPLOSIONORFIRETHATCANCAUSEINJURYTOPERSONS.
(2)Movealloftheequipmentthatyouwillusewithammablesolventsawayfromsourcesofheat.
(3)Closeallofthepassengerentrydoor,servicedoor,cargodoors,emergencyexitdoors,and
accesspanels.
NOTE:
Ifthedoorscannotbeclosedbecauseofotherservicing,makesurethatnouidgets
intothecabinarea.
WARNING:1、 、
、
PITOT/STATICPRESSUREPROBECOVERSMUSTBEVISIBLEFROMTHE
GROUNDANDAWARNINGNOTICEINSTALLEDONTHELEFTCONTROLWHEEL.
2、 、
、
PITOT/STATICPRESSUREPROBECOVERSMUSTBEREMOVEDBEFORE
FLIGHT.OTHERWISE,MAYLEADTOLOSSOFSAFEFLIGHT .
CAUTION:WHENEVERANOPENINGISCOVERED,MAKESURETHATTHECOVERISVISI-
BLEFROMTHEGROUND.ENGINESSHOULDNOTBEOPERATEDWITHCOVERS
INPLACEBECAUSETHECOVERSCANCOMEOFFANDDAMAGETHEENGINES.
CAUTION:DURINGCLEANING,USECOVERSANDADHESIVETAPESTOKEEPLIQUIDSOUT
OFAREASTHATCONTAINMECHANICAL,ELECTRICAL,ORHYDRAULICCOM-
PONENTS.LIQUIDSTHATGETINTOTHESEAREASCANCAUSECORROSION,
FREEZEDURINGFLIGHT ,ORDETERIORATIONOFLUBRICATINGOIL.
(4)Installcoversonthesecomponents:
CAUTION:MAKESURETHECOVERISINGOODWORKINGCONDITIONWITHNO
EVIDENCEOFDAMAGE,ESPECIALLYFRAYINGAROUNDTHECOVER
OPENING.FRAYEDFIBERSFROMTHECOVERCOMBINEDWITHOTHER
SUBSTANCES(SUCHASSAND,GREASE,ETC.)CANCAUSEOBSTRUCTION
INTHEPROBE.
CAUTION:COUNTTHENUMBEROFPINSONTHEPROTECTIVECOVERDURINGIN-
STALLATIONANDREMOVAL.MAKESURETHATTHEPINSAREWELLCON-
NECTEDWITHTHEPROTECTIVECOVER.SEPARATIONOFPINSMAYCAUSE
DAMAGETOTHEENGINEORTHEAIRPLANE.
CAUTION:DURINGINSTALLATIONANDREMOVALOFTHEAOASENSORCOVER,DO
NOTAPPLYFORCETOTHEVANEBLADESORDRAGTHEVANEBLADES.
OTHERWISE,DAMAGETOTHESENSORCANOCCUR.
ARJ21-A-13-12-15-01A-250A-A
Issue001,2023-01-29
Page6of11
Applicableto:ALL