Duplo 645 slitter issues

[F.I.Imgonefishing]

Having issues with slitter 5. Looks like blades are not in correctly as they do not touch and and are beveled edge to beveled edge rather than the flat sides.
I see no service procedure for replacement of just blades, only the unit any insight on disassembly to put blades in same way as the other units appear.

 

[Pennypicher]

they need to be flat to flat. You might gently pry apart heads and push blade over. How ever if they are worn the blades just barely overlap and it will do it again.