How to disassemble the mouth clutch?

Hi guys, the problems never go out^^ Currently I try to get the fragment of an old ring spring-muzzle from the traverse. But it’s not possible….. the crown nut on the back is of course already down and the discs from the back too. But the cone just can’t be hit out of the flange. I already hit around from all sides of the clutch with the thick bello. With a long tube the clutch can be tuggily turned round. Trick? I already got a used clutch, but the Ebay seller had not told me that the clutch pin is slightly crooked. Does that do something? Also with regard to TÜV? See pictures…. Thank you for your answers!