Vehicle crane comprising a mounting framework and method for mounting a bracing apparatus on a telescoping jib

A vehicle crane comprising:

• a lower carriage;
• a superstructure arranged on the lower carriage;
• a telescoping jib carried by the superstructure and comprising a basic box with retractable and extendible inner boxes;
• a mounting framework comprising at least one displaceable sliding frame;
• and
• a bracing apparatus comprising a first bracing arm and a second bracing arm;
• wherein at least one of the first bracing arm and the second bracing arm can be temporarily stored on the mounting framework, and wherein a single one of the first bracing arm and the second bracing arm can be temporarily stored on the sliding frame, and wherein the mounting framework is arranged in extension of the lower carriage and completely behind the lower carriage and is fastened to the lower carriage;
• wherein the bracing apparatus is configured to be attached to the telescoping jib and, for attachment purposes, the first bracing arm and the second bracing arm can be placed on the mounting framework one after the other.

A method for mounting a bracing apparatus on a telescoping jib of a vehicle crane comprising:

• providing a first transport unit having a mounting framework, received thereon, in the region of the vehicle crane;
• raising the mounting framework from the first transport unit via the vehicle crane;
• positioning the mounting framework in extension of a lower carriage of the vehicle crane;
• fastening the mounting framework to a lower carriage and completely behind the lower carriage and detaching the vehicle crane from the mounting framework;
• providing a second transport unit having a bracing apparatus, which is received thereon and includes a first bracing arm and a second bracing arm, in the region of the vehicle crane;
• raising the first bracing arm from the second transport unit via the vehicle crane;
• lowering and placing the first bracing arm of the bracing apparatus onto a first sliding frame of the mounting framework via the vehicle crane;
• displacing the first sliding frame in a first direction of a mounting direction from a retracted receiving position to a laterally extended lowering position;
• raising the second bracing arm from the second transport unit via the vehicle crane;
• lowering and placing the second bracing arm of the bracing apparatus onto a second sliding frame of the mounting framework via the vehicle crane;
• displacing the second sliding frame in a second direction of the mounting direction from a retracted receiving position to a laterally extended lowering position;
• luffing the telescoping jib down between the first bracing arm and the second bracing arm;
• displacing the first sliding frame and the second sliding frame in each case in the mounting direction from its lowering position to a central fastening position, in which in each case a fastening frame of the first bracing arm and the second bracing arm abut against a basic box of the telescoping jib;
• and
• fastening the first bracing arm and the second bracing arm with its fastening frame to the basic box.