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

PART 7: STARTING & OPERATING THE VEHICLE
and a shift shock eliminator feature. Follow the procedures
below to operate these types of vehicles.
Operating from the Streetside (LH) Drive Station
1. Start and run the engine and wait until the air system
pressure is in the normal operating range.
2. Depress the foot brake pedal & push in the parking
brake valve.
• A shift shock eliminator will not allow a shift
from neutral to either a forward or reverse
gear when the engine speed is over 900
rpm.
• A movement of the shift selector lever accomplishes
only one upshift or downshift of
thetransmissionatatime.
3. Move the transmission shift selector lever either
forward or rearward, then hold it in the extreme forward/rearward
position until the shift is complete. A
completed shift is signalled by the illumination of the
indicator light for a selected range.
Dual Steer Vehicle Operation
4. Upon reaching the desired transmission range, release
the foot brake pedal and depress the accelerator
pedal.
Switching from Streetside (LH) to Curbside (RH)
Operation
1. Bring the vehicle to a complete stop by using the foot
brake pedal.
2. Shift the transmission to neutral & pull out the parking
valve knob.
3. Move to the curbside (RH) drive station.
4. Move the toggle switch located on the curbside (RH)
electronic shift control panel to the RH position. The
green light under the LH symbol will go out; the red
light under the RH symbol will come on. This indicates
the curbside transmission control is active.
R(08/07) Y53-6015 – 107 –