15-21 Grippers rise unevenly

I got a call from our local art center that the grippers on the V15-21 rise unevenly with the ones closest to the handle lower than the others. They assembly has been taken apart and cleaned. Anyone have any idea what might be the problem or where I should start looking? Cross listing on the letterpress list. Thanks – Neil

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Paul Moxon, Moderator
Admin
8 years ago

Stems need lubrication after cleaning—graphite is best. Set screw could be over-tightened crimping sleeve in which stem slides. Stem could be bent.

kyle van horn
8 years ago

That press has the old-style gripper bar.

If it has all been cleaned and lubed, then wear is probably the culprit. Is there any wear in the Trip Bar, Fingers, or the threaded tips of the grippers? Either on the ends where pieces touch, or wear at a hole where they pivot. Sounds like one or two pieces have worn down and lost their push.

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