Daf LF.book - Peterbilt Motors Company

Driving
Activating the engine speed control
1. Turn the ON/OFF switch (B) to the "ON" position.
2. Turn switch (C) briefly to the "RES -" or "SET +" position. The "RES -" and
"SET +" positions have two different programmed engine speeds.
If the rotating switch (C) is held in "RES -" or "SET +" position for over 1 second,
the engine speed control will be activated at the lowest programmable speed. If
this speed is below idling speed, the speed will not fall below the idling speed.
3. Adjust the engine speed using switch (C): "SET+" position to increase speed,
"RES-" position to decrease speed.
Note:
If the engine speed control is active, the engine brake is deactivated.
Note:
Depending on how the electronic unit is programmed, the accelerator pedal is active
or not. When speed is increased via the accelerator pedal, the speed will be
reduced to the set value once the accelerator pedal is released.
If the vehicle can be driven, the electronic unit will limit the maximum vehicle speed
to a programmed value. If the vehicle exceeds the programmed speed, the engine
speed control will be interrupted until the vehicle speed is once more below the
programmed maximum value.
Note:
The function of key (D), if activated, is equal to the "RES -" position of switch (C).
Deactivating the engine speed control
- Turn the ON/OFF switch (B) to the "OFF" position.
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