196OPERATION
AirLeakageCheck
TheAirLeakagecheckallowsthedrivertoaccuratelymeasuretheamountofair
pressuredropinthefrontandrearbrakeairsystems.Afterselectingthistestfromthe
DID,youarepromptedtoapplytheservicebrakefor60seconds.Afterapplyingand
holdingtheservicebrakefor60seconds,theDIDwilldisplaytheamountofpressure
dropinthebrakesystem.
BeforestartingthetestthroughtheDID,completethefollowing:
•Starttheengineandcheckthatthebrakepressuregaugesaregreaterthan136
Nm(100psi).
•Turnengineoff.
•Releaseallbrakesandallowthesystemtosettle(airgaugeneedlestopsmoving).
1.Whenrunningthebrakepressuretestthefollowingscreendisplays.Pressandhold
thebrakepedalforatotalof60seconds.
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Iftheairtanksarenotfull,inordertocompletetheairleakagetest,thefollowing
screendisplays.
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