I have a newer model zassenhaus 151 grinder with the plastic outer burr carrier. The outer burr slips and rotates when grinding coffee beans. I took off the lower burr carrier and tried to remove the outer burr from the carrier but it is on too tight to move with just my fingers. I was wondering if anyone has had this problem with the newer zass? Is there something I can do to fix it? The burr was originally press fitted into the plastic carrier. I am not sure if I can remove the burr from the carrier without damaging the carrier. Also, putting them back together might be problematic. Please let me know as I am open to all suggestions. Thank you.

Zassenhaus has a 25-year warranty on coffee grinders ... try contacting the retailer that you got it from.

Thank you for the suggestion. I will try to contact them but I had purchased it used through eBay. At this point, i might try just knocking it out and then apply superglue to see if it will hold.