8 or a deflected position of operating element 8 with respect to the travel speed the driver 39 s seat 5 can be arranged in the direction of travel seat rotary position of 0 u00b0 or in a rotated position relative to the direction of travel at initiation of the seat rotation the driver 39 s seat 5 can have a seat rotary position deliberately preselected by the driver if the driver 39 s seat 5 is not arranged in the middle position it is possible that at initiation of the reversing process there is first performed an automatic rotation of the seat to the 0 u00b0 position there can also occur the case that the operating person has laterally shifted the seat from a middle position if the reversing process is initiated in such a position the seat will first be transferred into the middle position and then the reversing process will be initiated during the reversing process in the state of automatic operation the machine will control the travel speed automatically as long as the operating element 8 is not actuated when after initiation of the reversing process the operating element 8 is actuated the reversing process will be discontinued so that for resuming the.