Peterbilt 220, Operator'S Manual

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• The vehicle speed control or
engine speed control has been
activated.
WARNING
If the ABS/ASR control is activated,
the engine brake will be switched off
as long as the control is in operation.
On vehicles where the ABS/ASR con-
trol fails to function or on vehicles not
equipped with ABS/ASR, use of the
engine brake may lead to the risk of
skidding on slippery surfaces.
Stopping
Parking
• Move the parking brake lever (from
position A) backwards past the
locking cam (position B). The
parking brake is now engaged.
• Place chocks in front of and behind
the wheels.
• Angle the front wheels so that the
vehicle will not move into the traffic
stream if it is accidentally set in
motion.
Switch off the Engine
Place the gear in neutral when the vehicle
is stationary.
Before switching off the engine after a long
trip or when the engine has been subjected
to high loading, let it idle for at least 5
minutes. It is important to let the engine run
for a while in order to prevent the coolant
temperature becoming too high and to
allow the turbocharger to cool down.
Switch the engine off by turning the ignition
key to 0 position (rest position).
Allison Automatic
Gearbox
General
The automatic gearbox is fully
electronically controlled. The automatic
gearbox has either 5 forward or 6 (the
Allison 3000 & 3500) forward gears, and 1
reverse gear.
The automatic gearbox is operated by
various buttons located forward of the
parking brake next to the driver's seat.
Shifting Gears
The various gears are selected by pushing
the button associated with the gear.
Digital Display
The digital display is a two digit indicator:
the SELECT digit and the MONITOR digit.
During normal operation, if D (Drive) is
selected, the SELECT digit shows the
highest forward range attainable for the
DRIVING - Stopping
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