Navistar WorkStar Series, Operator'S Manual

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Operation
3. The transmission shifter’s digital display will show
a non-blinking “N”, indicating the transmission is in
Neutral.
T-Bar shifter: when the parking brake is released, the shift
lever has to be moved to Neutral and then back to the
desired forward gear. The AUTO NEUTRAL indicator will
go off.
Pushbutton shifter: when the parking brake is released,
press the shifter button for the desired transmission
gear.
Note: The Auto Neutral switch indicator will still be On –
indicating that the Auto Neutral function is still enabled
– and will remain on until the switch is placed in the Off
position. The AUTO NEUTRAL indicator will go off.
4. Repeat these steps as long as the Auto Neutral mode
is desired. To turn off the Auto Neutral mode, place
the AUTO NEUTL/ON switch to the off (AUTO NEUTL)
position. This will turn Off the switch indicator.
Power Take Off Control
If your vehicle is equipped with a power take off (PTO), refer to
the PTO equipment manufacturer’s instructions.
If vehicle is equipped with an Allison Automatic Transmission,
refer to separate Allison Transmission Operator’s Manual.
Automatic Transmission Operating Temperature
For the Allison transmissions, the sump/fluid reservoir
temperatures (indicated by optional gauge or warning indicator)
should not exceed 250°F (121°C). The converter temperature
(indicated by optional gauge or warning indicator) should not
exceed 300°F (149°C). For the transmissions with retarder, the
converter temperature (indicated by optional gauge or warning
indicator) should not exceed 330°F (166°C).
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