A bale forming apparatus and a bale forming method form cylindrical bales. An intake device conveys material into a bale forming chamber surrounded by a bale forming means. A bale in this bale forming chamber is formed by means of the bale forming means. A pivotal guiding member (28.1, 28.2) is mounted at a free end of a guiding member arm (26.1, 26.2). The guiding member arm (26.1, 26.2) is pivoted in a guiding direction and in a parking direction. This causes the guiding member (28.1, 28.2) to be pivoted into a guiding position and into a parking position. An actuating means (42) pivots a guiding member arm pivoting element (41) in a pivoting direction that is the guiding direction or the parking direction. This pivoting step causes the guiding member arm (26.1, 26.2) to be pivoted in the pivoting direction.