Navistar WorkStar Series, Operator'S Manual

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Operation
1. Reverse Button
2. Neutral Button
3. Forward Gear Selector Button
4. Hold Button
5. Low Gear Button
6. Downshift Button
7. Upshift Button
8. Service Indicator
The Eaton AutoShift® is a partially automated transmission
that automatically selects and engages the proper transmission
gears.
Some vehicles are equipped with an optional clutch
pedal that must be used when starting and stopping the vehicle.
To shift the Eaton® transmission into Reverse (R) or Drive (D),
first place foot on the brake and optional clutch pedal. When
in Drive (D), the transmission selects the starting gear and
automatically selects the proper gears for operating loads. To
select a higher or lower gear, first press the Hold button and use
either the up arrow or down arrow shift buttons. If LO is selected
while the vehicle is stopped, the transmission will remain in LO
gear until another gear is selected. If selected while in motion,
the transmission will downshift when it is safe to do so. To place
the transmission in Neutral, press the (N) button.
Eaton UltraShift® Transmissions (Optional)
The optional Eaton UltraShift® transmission is an automatic
transmission that can automatically select and engage the
proper transmission gears.
Vehicles equipped with this
transmission do not have a clutch pedal. For operating
instructions, refer to the Transmission Manual.
Automatic Transmissions
Allison Transmissions
NOTE: For a complete description of the Allison Automatic
Transmissions, refer to the Allison Transmission Operator’s
Manual, supplied with this vehicle.
Allison Transmission with “P” – (Park) Park Pawl Mechanism or
“PB” – Parking Brake Position
“P” – Park Pawl. A park pawl transmission effectively grounds
the output shaft, thereby preventing rotation of the driveline.
If the vehicle is stationary, selecting the “P” (Park) position on
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