a self-propelled loading-unloading machine mounted on a truck body, with a working section consisting of a rotating cantilevered boom. It is used for the loading and unloading of motor vehicle rolling stock, for cargoes primarily of a heavy and single-item nature, and also for construction and repair work. Equipping the operating end with a clamshell bucket permits use of the crane for loading and unloading bulk cargoes. The drive of cranes can be electrical, hydraulic, or mechanical with power takeoff from the truck engine. Truck-mounted cranes are produced with load capacities of 2.5 to 16 tons. The boom extends from 2 to 12 meters; with auxiliary devices in truck-mounted cranes with high load capacity the boom can be extended up to 22 meters. The hook can be elevated to a range of 7–18.5 meters. Truck-mounted cranes are supported by supplementary supports (outriggers) while lifting cargo, in order to increase their stability.
I. I. BATISHCHEV