The truck crane has a considerable size when the telescopic length is extended and can be further lengthened with an additional boom. Stability at this dimension is a must. High resistance to tipping is achieved through the swiveling and individually adjustable support legs of the vehicle platform. For even more stability, the attached counterweight can be used just like in the original crane. A newly developed winch with a locking mechanism and overload protection allows for easy handling of the crane hook when lifting and lowering, even for large parts. An integrated tool compartment in the platform completes the many functions of the crane.