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Performax ShopPro 25 HORRIBLE vibration, then circuit breaker trips

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Forum topic by bobkberg posted 01-24-2022 01:24 AM 398 views 0 times favorited 1 reply Add to Favorites Watch
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bobkberg

444 posts in 4531 days


01-24-2022 01:24 AM

Topic tags/keywords: question drum sander vibration

Hello all,

I have a ShopPro 25 drum sander with a problem. The support guy at Laguna Tools was unable to help with it, AND it’s intermittent.

When I start it up (with no load), sometimes it makes a horrible vibration, and if I don’t shut it off immediately, the circuit breaker (20 amps) will trip from overload.

The Leeson motor seems to run fine with nothing attached to it, so in desperation, I ordered a new set of bearings, and replaced them.

That seemed to do the trick for about 3 weeks, but the other day, the vibration returned again with the same behavior.

Any clues as to what might be going on?

Regards,

Bob

-- Bob www.singularengineering.com - A sideline, not how I earn a living


1 reply so far

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Sewermann

12 posts in 689 days


#1 posted 01-27-2022 02:49 PM

Bob, check the tightness of the set screws at each end of the drum shaft. My Performax Supermax 25-incher (predecessor to your model) developed a similar-sounding vibration. Since I couldn’t figure out the cause I called the folks at Performax, and they put their finger on it right away – the two set screws at one end of the shaft were loose. Upon disassembly I discovered that the shaft end had been gouged/deformed, requiring a trip to a machine shop. The machinist was able to build up the damaged shaft end, and then turn it down to the correct diameter. During reassembly I installed new bearings on each end of the shaft. Believe me, I now check the tightness of the set screws almost every time I use it.

Perhaps you have a similar issue. Good luck.

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