Harvester with height adjustable processing attachment

An agricultural machine has a processing attachment, an adjusting device operative for height-adjustment of a working position of the processing attachment relative to the ground, and an additional adjusting device operative for adjusting at least one further working parameter of the processing attachment, in addition to the working position, the additional adjusting device having means for storing nominal values for the working parameter of the processing device corresponding to different working positions, and means for supplying a working position signal to the additional device to select a corresponding one of the nominal values for the additional working parameter so that the additional working parameter is automatically adjustable by the additional adjusting device to a nominal value corresponding to the working position signal.