Operating the semi-automatic muck skip, a second person is needed to load and unload the skip (additionally to the crane operator). Before loading the skip, the lift beam is folded back and locked. After the loading process, the second person has to unlock the lift beam. The beam can now be pulled in an upright position and the skip can be moved.The muck skip is set down, the lift beam is folded back and locks again. Now the skip can be unloaded by means of a crane putting it in an oblique position. After the unloading process the beam has to be unlocked again in order to put the skip in an upright position and move it.