Looks like when new rollers were put on the press, two of the roller height adjustment mechanisms were put on backward, so that the locking nut faces the wrong way. I assume they should face inward, but we have two that face outward. Anyway, a few days ago, one of the rings came off the bearing so I thought I would take the opportunity to switch out those adjustment gizmos. Manual says to loosen roller end screw to take the mechanism off, but I’m not finding any joy with moving that screw. Any hints? Thanks.