Navistar WorkStar Series User Manual

Table of Contents
Exhaust Diesel Particulate Filter Regeneration...........117
Parked Regeneration Procedure...........................119
RegenerationInhibit Switch.................................119
Two-Position Regeneration Inhibit Switch.................120
Three-Position Regeneration Inhibit Switch...............120
Transmission.................................................120
Manual Transmissions......................................120
Engaging the Clutch.........................................120
Clutch Brake (Vehicles with Nonsynchronized
Transmission) – Vehicle Not Moving.......................121
DoubleClutchProcedures, Nonsynchronized............121
Clutch Precautions..........................................122
ShiftingwithSynchronized Transmission.................122
Shifting withNonsynchronizedTransmission.............122
Operation of the Eaton AutoShift® Transmission
and Shifter ...................................................122
EatonUltraShift® Transmissions(Optional)..............123
AutomaticTransmissions...................................123
Allison Transmissions.......................................123
Allison Transmission with “P” – (Park) Park Pawl
Mechanism or“PB”–Parking Brake Position............123
ParkingThe Vehicle.........................................124
PreparingtoDrive the Vehicle .............................125
Manual ParkingBrake ......................................125
AirParking Brake or Power ParkingBrake...............125
Operation of the Allison Generation IV Gearshift
Controls ......................................................125
Allison Generation IV T-Bar Gearshift Control............126
Torque Lock..................................................126
Operation of the Allison Generation IV Push-button
ShiftSelector................................................127
Operationofthe Column-MountedShifter................128
Main Transmission Controls................................128
Backup Alarm................................................129
Auto Neutral..................................................129
PowerTake Off Control.....................................131
Automatic Transmission Operating Temperature.........131
Rear Drive Axles ............................................132
LockingDifferentials.........................................132
TandemAxle Power Divider Lock(PDL) Control.........132
Driver-Controlled Differential Lock.........................133
Controlled Traction Differential.............................134
LockingDifferential(Optional)..............................134
Two Speed RearAxle.......................................135
Axle ShiftOnly...............................................135
Split Shifting..................................................136
Axlesand Suspensions.....................................136
Gross Weight (Axle – Vehicle)..............................136
AxleOperating Temperature................................136
FrontAxle(4X4, 6X6).......................................136
Transfer Case................................................137
Operation.....................................................137
International® Ride Optimized Suspension (IROS)
(Optional).....................................................139
Air Suspension Dump (ASD) Switch (Optional)..........139
AirSuspensionSystem Faults.............................140
Axle andSuspensionConversions........................140
Lift Axle Options..................................................140
Lift Axle Locations...........................................141
Lift Axle Types...............................................141
LiftAxle Controls.............................................142
LiftAxle System Operation.................................145
Brakes.............................................................147
Downhill Operation..........................................147
iv 3879634R1

Navistar WorkStar Series Specifications

General

Brand	Navistar
Model	WorkStar Series
Category	Trucks
Language	English