Navistar International LT Series User Manual

Operation
TrailerBrakeHandControl
WARNING
Topreventpersonalinjuryand/ordeath,or
damagetoproperty,thehandcontrolvalve
shouldneverbeusedtoapplythetrailerbrake
whenthetractorandtrailerareparked.Air
pressuremayleakfromthesystem,andthe
vehiclecouldrollaway.
Thetrailerbrakehandcontrolisusedtoapplythetrailerservice
brakes,independentlyofthetractorservicebrakes.Thetrailer
brakehandcontroloperatesavalvethatprovidesgradualcontrol
ofairpressureappliedtothetrailerservicebrakes.Thetrailer
servicebrakecanbefullyorpartiallyapplied,butwhenina
partialposition,canbeoverriddenbypressingfullyonthebrake
pedal.
Toapplythetrailerservicebrakesutilizingthehandcontrol,
movetheleverclockwise(down).Thefurtherthehandleis
movedclockwise,thegreatertheairpressureappliedtothe
trailerbrakes.Thetrailerhandbrakehandlewillremainin
placewiththedesiredbrakepressureapplieduntilthehandle
ismanuallymoved.Toreleasethetrailerbrake,movehandle
counterclockwise(up)untiltrailermovesfreely.
TrailerAirSupplyandParkingBrakeModularControls
•TRAILERAIRSUPPLY(REDoctagonalknob)
•PARKINGBRAKE(YELLOWdiamondknob)
ThePARKINGBRAKEvalveknob(YELLOW)shouldbepushed
inrst,aftersufcientairpressureisbuiltup(applyfootbraketo
preventvehiclefromrolling).TheTRAILERAIRSUPPLYvalve
knobmaythenbepushedin.
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Navistar International LT Series Specifications

General

Brand	Navistar
Model	International LT Series
Category	Trucks
Language	English