Mobile crane comprises crane supports, each removably connected to a crane support extension or an adapter so that the ballast weight can be reduced or increased depending on the current surface conditions

摘要

Mobile crane comprises a crane jib, and four crane supports arranged symmetrically to the axis of rotation of the crane jib and provided with devices for adjusting the support height and a ballast weight lying opposite the crane jib. The crane supports are each removably connected to a crane support extension (2.1-2.4) or an adapter (5.1-5.4) so that the ballast weight can be reduced or increased depending on the current surface conditions. Preferred Features: Each extension is screwed or bolted onto a connecting surface of the crane support.