Abstract: A load suspension device that can be adjusted, locked, and braced horizontally, by hydraulics, has an extension device for length adjustment, and consists of two supporting parts and a hydraulic operating element having two work chambers, which is connected with one of the supporting parts and supports itself in the other supporting part, and adjusts these relative to one another. There is a pressure line and a tank line, a controller, a measurement sensor disposed on the hydraulic operating element or on the extension device, and a pressure measurement system. The extension device remains braced when the system is without current or pressure or when current or pressure is applied. The device is inexpensive to construct, service and maintain, minimizes damage due to impact of the supporting parts with an obstacle, and avoids impact stresses on the operating element from the hydraulic system.

Abstract: A load suspension device that can be adjusted, locked, and braced horizontally, by means of hydraulics, has an extension device for length adjustment, and consists of two supporting parts and a hydraulic operating element having two work chambers, which is connected with one of the supporting parts and supports itself in the other supporting part, and adjusts these relative to one another. There is a pressure line and a tank line, a controller, a measurement sensor disposed on the hydraulic operating element or on the extension device, and a pressure measurement system. The extension device remains braced when the system is without current or pressure or when current or pressure is applied. The device is inexpensive to construct, service and maintain, minimizes damage due to impact of the supporting parts with an obstacle, and avoids impact stresses on the operating element from the hydraulic system.