Abstract: Plate-like ballast weights attached by noses to a support or carrier element located at the front of an agricultural prime mover. The nose of each individual ballast weight is spaced from the rest of the ballast weight by such an amount that the latter can be hung by the nose on the support or carrier element in a hanging-in or attaching position, and can subsequently be pivoted into its end position with the nose on a slope or inclination of the support or carrier element. A projection in the lower region of the ballast weight catches in a recess in the end position of the support or carrier element. The ballast weights can be secured in this end position by an arresting arrangement in the region of the noses thereof.