foerfarande foer upphaengning och avlaegsnande av i motvikt foer i bom foer i hydraulisk fordonslyftkran och anordning foer foerverkligande av foerfarandet.

摘要

On the base plate (30) under the winch carrier (7) of the superstructure of a mobile hydraulic crane, at least one hydraulically actuated thrust-piston drive (14) is arranged to oscillate on a supporting block (17). Arranged on the free piston-rod end of the thrust-piston drive (14) is a coupling element (23) which correlates with a coupling element (24) on the counterweight (10) arranged below the base plate in the working position of the crane. A method as well as a device for carrying out the method are provided in order to mount and dismount the counterweight automatically with only one operator. IMAGE