Uni III roller bearer issue?

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.

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Paul Moxon, Moderator
3 years ago

Send me video. Without this, or being on site, I can only guess:
– geared roller not seated in the bearing bracket causing the gear to skip across the gear rack
– one or more roller end screws have backed out and are grinding into the bearing bracket
– oscillator not rotating because the crescent is locked down
– a wiper blade may be bent or angled against one of the racks

Paul Moxon, Moderator
3 years ago

The dowel, or pin, is pushed inward by the setscrew causing the screw to splay agains thet interior threads of the roller core. Thus the screw will not backout

Paul Moxon, Moderator
3 years ago

This is a special screw with a set screw and dowel inside. Use a 1/8″ hexy key to loosen the set screw, then you can remove the entire screw.

If the ring isn’t too out of round you can apply Loctite and reassemble.

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