Navistar WorkStar Series, Operator'S Manual

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Controls/Features
Steering Wheel Controls
The steering wheel contains the Electric (city) horn, Optional Air
horn control, and Cruise/Throttle controls.
1 AIR HORN - Used to activate the air
horn.
2 HORN - Used to activate the city horn.
3 CRUISE/THROTTLE - ON/OFF - Turns
the speed control feature ON or OFF.
Engine speed does not change when
you press the ON position. This control
just activates/deactivates the feature.
When the OFF position is pressed, the
system will be turned OFF.
4 RESUME/ACCEL - Used to resume the
desired speed set on the cruise control
or accelerate to a higher desired speed.
When parked, used to increase idle
RPM.
Cruise Control
The cruise control systems for all electronic engines function in
a very similar manner. The biggest difference is the minimum
and maximum allowable cruise control speeds that will vary from
vehicle to vehicle.
WARNING
Do not use the cruise control system when
unpredictable driving conditions are present.
Such conditions include heavy traffic, roads
that are winding, icy, snow covered, slippery,
or with a loose surface. These conditions may
cause wheel slippage and loss of vehicle control,
resulting in property damage, personal injury, or
death.
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