Abstract: A method for changing a vertical lifted-out state of a carrier vehicle parked on a ground surface, for a lifting device having a supporting system with support legs and a controller for controlling drives of the support legs. The method including calculating a sequence of control commands for sequential and time-limited control of the drives for changing the vertical lifted-out state while maintaining the instantaneous inclination of the carrier vehicle and/or the lifting device within a predetermined range for an inclination deviation. A lift-out step includes control of the drives of the support legs of the supporting system with the sequence of control commands for changing the vertical lifted-out state of the carrier vehicle and/or the lifting device relative to the ground surface. A sequential and time-limited control of the drives of the support legs of the supporting system with control pulses occurs with the sequence of control commands.

Abstract: A support system includes supporting legs, adjustable at least vertically in their longitudinal extent, to provide support on a substrate, a controller for controlling drives of the supporting legs using control commands, and an inclinometer for sensing an inclination of a carrier vehicle and/or of a lifting apparatus relative to at least one predetermined or predeterminable spatial direction and/or spatial plane. A method for supporting the carrier vehicle, parked on the substrate, for a lifting apparatus with a support system includes a calculation method step in which a sequence of control commands is calculated, and a levelling method step in which sequential and time-limited control of individual drives of the supporting legs takes place so as to minimize the inclination. The calculation method step and the levelling method step being repeated in a loop.

Abstract: An operating apparatus for a loading crane, comprising a display screen on which a torque exerted by the load and the crane can be represented in relation to its respective highest permissible value, wherein the direction of the plane defined by the crane with respect to a horizontal plane (pivot angle) and the current torque can be displayed together with a curve (21) which represents the highest permissible torque for the entire angular range.