Mobile crane with adjustable counterweight device

Mobile crane comprising a moveable undercarriage, an upper carriage mounted on the moveable undercarriage so as to rotate about a vertical upper carriage axis of rotation and having a ballast, and a counterweight that can be coupled to the ballast and comprises a counterweight base plate and at least one connector extending from the counterweight base plate for lifting and coupling the counterweight to the ballast, wherein a distance from the counterweight to the vertical upper carriage axis of rotation can be adjusted in a ballasted state via a first arm of the ballast, which can be pivoted about a vertical axis of rotation,

• wherein
• the first arm in the ballasted state is connected to the counterweight base plate via a pivotable coupler, which is pivotably mounted relative to the first arm and the counterweight base plate in such a way that the counterweight base plate can be adjusted in a linear movement radially to the vertical upper carriage axis of rotation by simultaneously pivoting the first arm and the pivotable coupler.