Spire F VRT

Apart from the conventional swinging front axle, Spire F VRT models are also available with a new hydropneumatic, independent front suspension system with active control, enabling the front wheels to execute vertical oscillations independently of one another. A dedicated control unit adjusts the response for each individual wheel, resulting in a suspension system with extraordinarily effective dynamic behaviour that also ensures outstanding precision in mechanised canopy management when using equipment fastened firmly to the tractor body. The suspension units are also controlled electronically in order to reduce pitch and roll effects at higher speeds, although this function may be disabled if deemed necessary.  In addition to all this, the machine may also be equipped with 4-wheel steering. This allows the tractor to work in cramped conditions by offering significantly better manoeuvrability and a much tighter turning circle than a conventional machine but with no penalty for track and wheelbase. The new rear axle allows the rear wheels to steer up to an angle of 15°, while the position of the wheels is controlled by an electronic control unit offering the driver a choice of different operating modes.