Abstract: A round baler has a rear door pivotable relative to the frame. A circulating press element defines a press chamber inside the frame for forming crop bales. A tension rocker is pivotable relative to the frame and has a rotatable rocker guide roller guiding the press element. A first pressure element is arranged at frame and rear door and acts between frame and rear door. A second pressure element is arranged at rear door and tension rocker and acts between rear door and tension rocker. At least one of the pressure elements is a linear actor. By length expansion of the first pressure element, rear door and tension rocker are pivotable, wherein the rear door is pivotable upwardly to enable ejection of crop bales. The rear door is pivotable downwardly by length expansion of the second pressure element. A method for operating the round baler is provided.