OPERATOR'S MANUAL

AIRSYSTEM
TheAD-ISSeriesairdryerhas
incorporatedintoitsdesignvarious
componentsthathavetypicallybeen
installedseparatelyonthevehicle(see
belowforcomponents/areasaffected).
•Pressureprotectionvalves
•Safetyvalve
•Governorandplumbing
•Plumbingofthefrontandrear
serviceairtanks
•Plumbingtoaccessorysystems
Thesecomponentsarerequiredto
meettheFederalMotorVehicleSafety
Standards(FMVSS121-AirBrake
Systems).AstheWarningabove
states,anyothertypeofairdryer
installedintheplaceofanAD-ISSeries
willrequirechanges,modications
and/oradditionstoyourvehicle’sair
systemtomaintaincompliancewith
FMVSS121.
AirTanks
Toejectmoisturefromtheairsystem
tanks,pullthelinethatisconnectedto
themoistureejectionvalve.Continue
pullinguntiltheaircomesoutfreeof
water.
Daily:Thesupplyandserviceair
tanks,mustbedrainedonadaily
basis.Operateairdevicesdailyto
circulatelubricantswithintheunit.
Periodically:Cleanlterscreens
aheadofthevalvesbyremovingthe
screensandsoakingtheminsolvent.
Blowthemdrywithpressurizedair
beforereinstallingthem.
WARNING
Ifthesupplyandserviceairtanks
arenotdrainedattherecommended
frequency,watercouldenterthe
airlinesandvalves.Thiscould
causecorrosionorblockage,which
couldcompromisethebrakesystem
safetyandpotentiallycausean
accident.Failuretocomplymay
resultindeath,personalinjury,
equipmentorpropertydamage.
CAUTION
Donotusepenetratingoil,brake
uid,orwax-basedoilsintheair
system.Theseuidsmaycause
severedamagetoairsystem
components.
•Maintaintheaircompressorto
preventexcessiveoilbypass.
•Replacewornsealsinvalvesand
airmotorsastheyareneeded.
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