Peterbilt Model 320 Operator's Manual after 8-07 - Peterbilt Motors ...

PART 7: STARTING & OPERATING THE VEHICLE
2. Shift the transmission to neutral & pull out the parking
valve knob. (Note: Do not apply the work brake).
3. Move to the streetside (LH) drive station.
4. Move the toggle switch located on the curbside (RH)
electronic shift control panel to the LH position. The
red light under the RH symbol will go out; the green
light under the LH symbol will come on. This indicates
the streetside transmission control is active.
Using The Work Brake
WARNING!
• To avoid injury & damage, never apply the
work brake when the vehicle is in motion.
Dual Steer Vehicle Operation
• Do not use the work brake instead of the
service brake to stop the vehicle. The work
brake fully applies the brakes and, if used
while the vehicle is moving, could result in a
sudden stop, skid, or loss of control, leading
to an accident and possible serious personal
injury.
1. Apply the work brake by moving flipper valve to “ON.”
This applies front & rear service brakes and shifts
transmission to “neutral.”
2. Release the work brake by moving the flipper valve to
“OFF”. This releases the service brakes and shifts the
transmission to “drive.”
R(08/07) Y53-6015 – 109 –