Disassemble or take apart Schaublin 102 cross slide screw

I have recently bought a Schaublin 102 cross slide. I have it all apart and have been restoring it. It's coming along well but I have hit a snag. One of the cross slide screws ball bearing sets has either a metal shard in it or something inside with the ball bearings keeping it from rotating. I've scoured the web and I can't find anything on how to get this apart.

Can anyone help?



Thanks for any help you can give me, Tim