Daf LF.book - Peterbilt Motors Company

Driving
ENGINE BRAKE
The engine brake is primarily intended for prolonged braking, for example when
decelerating from high speed on a level road or when driving downhill. This reduces
service brake wear.
A
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By moving the operating lever on the steering column in direction A and releasing
the accelerator pedal, the engine brake control will be activated.
Note:
- The engine cannot be turned off with the engine brake.
- In order to save the service brakes and to prevent the engine brake valve from
becoming stuck, it is wise to regularly use the engine brake.
The braking effect decreases as the engine speed falls.
The most appropriate area of use for the engine brake is in the blue area of the rev
counter. The engine brake delivers the highest braking effect in this area.
When using the engine brake, adjust your gear selection so that the engine speed
remains in the most favourable range.
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The engine brake is automatically switched off: