The 3-point hitching allows to carry the machine during transportation. But, while working, it is simply trailed by the 2 lower points, as the 3rd one is floating. Thanks to this special design, the pasture toppers can follow the ground unevennesses.
The floating 3rd point of the machine in working position is only kept for front pasture toppers. These are hitched by means of a central beam that trails the machine at the front. The back of the pasture topper is simply supported by a sliding guide. As a result, the machine can "float" freely on the ground. Besides, the double hitching spring makes the continuous contact on the ground lighter.