A method for adjusting the rotational position of a rotatable element of a rotary device. The rotary device can be: a filler, capper, labeler, a star wheel conveyor, or other rotary device. The rotary device can be part of a system that includes an adjustment mechanism having at least a portion disposed radially outside the rotatable element. The adjustment mechanism includes an adjustment element positioned to engage the rotatable element. The method includes moving the adjustment element and/or rotating the rotatable element(s) so that the adjustment element engages a rotatable element to adjust the position of the rotatable element. In some cases, the same motor that rotates the rotary device about the axis to convey articles is used to assist in engaging the adjustment element and the rotatable element to adjust the position of the rotatable element.