A material moving system (23) for use in an agricultural harvester (10) comprises a slat (68) including a web (83) secured too loops of flexible material, such as chains (66). A first and second leg (86) extend outwardly from one side of the web (83), the first leg (84) providing primary impetus for movement of crop material in a first direction by the material moving system (23). A single third leg (88) extends outwardly from an opposed side of the web (83) and provides secondary impetus for movement of crop material by driven movement of the material moving system (23). In response to the slat (68) encountering a foreign object (80) that becomes wedged between the first leg (84), the third leg (88) and structure of the material moving system (23), and preventing driven movement of the material movement system in the first direction, upon application of force urging movement of the material movement system in an opposed second direction, the third leg (88) facilitates a rotational movement of the slat (68) for dislodging the foreign object (80).
