Patent attributes
An assembly including a fluid pressure actuator, which has a guide part and an active part movable relative thereto, and a fluid pressure source which is in communication with the fluid pressure actuator in order to supply the latter with fluid which is under pressure, is characterized in that a locking device is provided which can interrupt the connection of the fluid pressure actuator with the fluid pressure source, that a control unit is provided which controls the locking device, and that the fluid pressure actuator is provided with a sensor by means of which the control unit can determine the position of the active part relative to the guide part.