A rotobaler is provided with an inclination sensor that recognizes the inclination of the rotobaler, to the side as well as tin the longitudinal direction. The inclination sensor generates a signal that is processed by a computer that controls a display arrangement in order to indicate whether a bale that is to be unloaded from the rotobaler can be ejected from the rotobaler, as presently positioned. If the inclination is such that a safe ejection of the bale is not possible, the computer sends out a signal that locks an outlet arrangement for the bale, or that steers the rotobaler in such a way that the bale is deposited with its longitudinal axis parallel to the inclination of the slope.