Navistar International LT Series User Manual

Operation
ClutchBrake
NOTE:AfterengagementofrstgearDONOTusetheclutch
brakeforupshiftinganddownshifting.Todosowillshorten
theservicelifeoftheclutchbrake,andgearselectionshift
effortsmaybeincreased.
Aclutchbrakeisusedtostoptransmissioninputshaftrotationso
thattheinitialrstorreversegearselectioncanbeaccomplished
whenthevehicleisatastandstillandtheengineisrunningat
idlespeed.
Whenusingtheclutchbrake,fullydepresstheclutchpedaland
shiftthetransmissionintoeitherrstorreversegear.Ifthe
transmissiondoesnotgointorstgearorreverse,toothbutting
maybeoccurring.Slowlyreleasetheclutchpedalwhileapplying
lightpressureontheshiftleveruntilthetransmissiongoesinto
gear.Thiswillprovideforasmoothshiftintoeitherrstorreverse
gear.
Serviceisrequiredwhentheclutchbrakecannotbeengaged,
shiftingintogearisextremelytough,orgrindinggearswhen
shiftingfromastop.Serviceisalsorequirediftheclutchpedal
becomesspongyorthereisasuddenchangeinclutchfreeplay
travel.
ClutchPrecautions
Maintainspeciedclutchadjustment.Regularlyinspectclutch
controllinkagefortightness.
Whenadjustmentoftheclutchisnecessary,itisextremely
importantthattheworkbeproperlyperformed;otherwise,early
failureoftheclutchwillresultandacostlyclutchoverhaulwill
benecessary.
Toavoidneedlessdelayandexpense,allowonlycompetentand
experiencedmechanicstoperformtheseoperations.
Eaton
®
UltraShift+
®
Transmissions(IfEquipped)
TheoptionalEaton
®
UltraShift+
®
transmissionisanautomatic
transmissionthatcanautomaticallyselectandengagethe
propertransmissiongears.Vehiclesequippedwiththis
transmissiondonothaveaclutchpedal.Foroperating
instructionsrefertotheTransmissionOperationand
MaintenanceManual.
Eaton
®
Endurant
™
Transmission
TheoptionalEaton
®
Endurant
™
transmissionisanautomated
transmissionthatcanautomaticallyselectandengagethe
propertransmissiongear.Thistransmissionalsohastheoption
toallowtheoperatortomanuallyselectthetransmissiongear,
seethestalkshifterinformationintheControlsandFeatures
sectionofthismanualformoreinformationonmanualmode
operation.Vehicleswiththistransmissiondonothaveaclutch
pedal.Foroperatinginstructions,refertotheTransmission
OperatorManual.
AllisonTransmissions
TheoptionalAllisontransmissionisanautomatedtransmission
thatcanautomaticallyselectandengagetheproper
transmissiongears.Vehiclesequippedwiththistransmission
donothaveaclutchpedal.Foroperatinginstructions,referto
theAllisonTransmissionOperatorManual.
171

Navistar International LT Series Specifications

General

Brand	Navistar
Model	International LT Series
Category	Trucks
Language	English