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Automatic shifting
The simplest way to drive the truck is to use the
automatic program (position A). Gear changing is
automatic and the driver can concentrate on the actual
driving.
When changing gear, the system will govern the
clutch, gearbox and throttle. The system selects the
gear and the point in time for gear changing for
optimum driving performance based on accelerator
pedal position, truck weight, road inclination, vehicle
acceleration, etc.
It is also possible to adjust the gears up or down in
automatic mode. The arrows in the display show how
many steps it is possible to change up or down.
Automatic choice of starting gear.
The gearbox selects the most suitable start gear with
respect to weight and the road's gradient.
Adjusting the starting gear
You can select a starting gear by using the + and -
buttons.
Freewheel (EcoRoll)
The freewheel can be activated if the lever for the
auxiliary brake is in position A, and if E+ is shown in
the display. When the freewheel is activated, split gear
is set to N, neutral. Freewheel is activated differently
depending whether the cruise control is active or not.
If the cruise control is active:
• Freewheel is engaged on downward slopes when
the speed exceeds the selected driving speed (for
example 80 kph). The selected driving speed must
be exceeded by 6 kph or more. (See the section on
auxiliary brakes for more information as to how the
auxiliary brake functions and how the excess speed
can be set.)
I-Shift 225
J4020433
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