Abstract: A crop sheild is connected to the aft ends of a pair of parallel links by a bracket assembly which can pivot to permit the shield to dump trash. The bracket assembly is pivotally connected to the aft end of the lower link and includes a slot slidably received on a pin located on the aft end of the upper link to maintain the links in a generally parallel relationship. The weight of the shield normally biases the shield to a horizontal field-working position with the end of the slot stopped against the pin. When trash builds up, the shield pivots with respect to the lower link and the slot slides over the pin as the shield moves up against the bias over the trash. Dump forces are reduced since the shields pivot independently of the parallel links.