All conditions required for adjustment are the same as those described above for headlights, with two exceptions. First, the distance L should not be 10 m, but 7.5 m, and second, the line (2) should be drawn below the line (1) not by 55 mm, but by 130 mm (dimension C).
The vertical beam is adjusted using the adjusting screw (arrow in the figure NM.22.050).