Bernina 87 Mode D'emploi page 6

Assembly
6
› Use securing screw (1) to fit the binder attachment in such way that
the plate sits virtually flush with the stitch plate. This applies for acti-
va, aurora, artista and BERNINA 830 models.
› Butt guiding aid (2) against presser foot. Then tighten the screws
(4, 5).
› Loosen screw (3) on pivot arm and move binder to presser foot as
close as possible from the side, then retighten screw (3) provisionally.