Abstract: The vehicle crane comprises a truck carrier and a superstructure in which the driving of the superstructure function is carried out by means of hydraulic pumps in the truck carrier, and the hydraulic pumps are driven by a distributor gear unit which is arranged in the truck carrier and to which the output shaft of the vehicle drive is connected.

Abstract: A control system for a loading crane provided with a control site, the control system consisting of a control site for a crane operator, a directional control valve positioned external to the control site and arranged to control a hydraulic system of the crane to provide different operations of the crane, and a mechanical rod-driven control lever system influencing actuator spindles of the directional control valve for the control of the directional control valve from the control site of the crane. To provide an efficient control system, the directional control valve is arranged at the sides of the control site in such a way that the actuator spindles are in a substantially horizontal position.

Abstract: A semi-automated load balancing mechanism includes a load balancing arm supported for vertical swingable movement and a second arm. The second arm is mounted on a distal end of the load balancing arm for horizontal movement. The second arm has a part holder on a distal end thereof for receiving and supporting a load thereon. An actuator is disconnectably coupled to the load balancing arm for moving it while allowing manual movement independent of the actuator.