My reading of this is different. Point 2 is about, as you said, positioning the stator. The "eindeutige Ausrichtung" means, I think, chosing a specific orientation, whereby there are 2 possibilities, either the chamfer (Fase) or the chain side is placed up. The geometry is just like a die, whereby e.g. the 6 or the 1 could be placed up if you laid it on a table. You can say the chain plane, like rain in Spain, but it is not a question of putting something on top, it is a question of orienting the stator so that one or the other side is up. BW, Nancy