In an example embodiment a header includes a lean bar having a position that is adjustable. A controller may be configured to change position of the lean bar. The lean bar position may be manipulated in response to a characteristic of crop material to be processed. In one example embodiment a control panel is provided in a cab of a vehicle to allow an operator to remotely manipulate the position of the lean bar. A control panel may be provided to allow an operator to manipulate the lean bar.