Uwatec AIR2 - Preparing for Use; Set-up;In-Use Warning

8
5. PREPARING FOR USE
BeforeassemblingtheSCUBAunitverifythatallcomponentscomplywithlocalorEuropean
standards.
• Beforeconnectingtherststagetothecylinderverifythattheconnectionisfreefrom
dirt(sand,debris)andthattheO-ringisundamaged.
• INTconnection:placetherststageconnectoronthecylindervalveafterchecking
thatitisalsofreefromdirtordebris.Checkthatthecontactsurfacesareinthecorrect
positionandthentightentheyokescrew.Inordertoobtainthemaximumcomfort,the
lowpressurehoseconnectingtherststagetothesecondstageshouldbehorizontal
anddirectedtowardthediver’srightshoulder(Img.1).
• DINconnection:screwtherststageconnectoronthecylindervalveaftercheckingthat
thisisalsofreefromdirtordebris.Beforetighteningthehand-wheelandwhilescrewing
itin,conrmthatthethreadsontheDINconnectionandonthevalvecorrespond
correctlyandarenotcrossed.Inordertoobtainthemaximumcomfort,thelowpressure
hoseconnectingtherststagetothesecondstageshouldbehorizontalanddirected
towardthediver’srightshoulder(Img.2).
Img. 1 Img. 2
• Fitthecarryingsystem/jacket(refertotheappropriateuserinstructionguide).Aftertting
thecarryingsystem,thecylindershouldsitsecurely.Checktobesurethatthecylinder
cannotcomelooseonitsownaccord.
• Conductavacuumleaktest.Withthecylindervalveclosedslowlyinhalefromthe
secondstage.Itshouldbepossibletoachieveandmaintainaminimalnegativepressure
withoutairenteringthesystem.Thistestmustberepeatedforallregulatorsecond
stagesconnectedtotheSCUBAunitinuse.
• Nowconductahigh-pressureleaktest.Slowlyopenthecylindervalve,checkforany
leaksandreadthepressureregisteredonthepressuregauge.
5.1 Set-up/in-usewarning
!
WARNING
While opening the cylinder valve, the pressure gauge face must not be directed
towards the user or others, in the event and risk of a pressure gauge malfunction.
!
WARNING
When opening the cylinder valve the second stage purge button should be slightly
depressed, so that the second stage valve is open.