Navistar WorkStar Series, Operator'S Manual

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Operation
WARNING
• For the Auto Apply Parking Brake (“PB” transmissions),
make sure that the “PB” selection has applied the
Parking Brake (Parking Brake indicator should be
turned On) by slowly releasing the service brake and
verifying that the vehicle will not roll.
• Chock the wheels and take any other steps necessary
to keep the vehicle from moving.
• Turn off engine anytime you leave the vehicle. Never
leave the vehicle unattended with the engine running.
Preparing to Drive the Vehicle
WARNING
To prevent unexpected vehicle movement, hold
the brake pedal down while you move the
gearshift from position to position.
Failure to
follow this warning could result in property
damage, personal injury, or death.
Read and perform the following steps for the particular vehicle
Parking brake whenever you prepare to drive away.
Parking Brake Interlock. To shift from P (Park) or PB (Parking
Brake), the shifter is equipped with a Parking brake Interlock.
The ignition switch must be in the ON position and brake pedal
depressed before the gear selector can be moved from the P
(Park) or PB (Parking Brake) position into the desired operational
position.
Manual Parking Brake
After starting the engine, place foot firmly on brake pedal.
With foot still on brake pedal, select the desired transmission
operating position.
With foot still on brake pedal, push manual Parking Brake lever
down to release, then lift foot from brake pedal to allow the
vehicle to move.
Air Parking Brake or Power Parking Brake
After starting the engine, place foot firmly on brake pedal.
With foot still on brake pedal, push and hold shift selector
button and move selector to the desired transmission operating
position.
With foot still on brake pedal, push in on Parking Brake control
knob to release parking brake (Air Brake) or push and release
the control knob (Power Parking Brake), then lift foot from brake
pedal to allow the vehicle to move.
Operation of the Allison Generation IV Gearshift Controls
WARNING
To prevent unexpected vehicle movement, hold
the brake pedal down while you move the
gearshift from position to position.
Failure to
follow this warning could result in property
damage, personal injury, or death.
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