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Thread: Found it! Well part of it.

  1. #1
    Join Date
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    Found it! Well part of it.

    My Unisaw has started making a funny noise a few weeks ago. I couldn't figure out what it was. I figured it would either quit or get worse. When it got worse I could find it.

    Today I was changing the blade to a dado stack. With the blade off, I raised the shaft up to make it easier to reach when I noticed a spiral pattern in the dust on the elevating shaft. A quick look and I saw the noise maker. The pulley on the motor was rubbing on the shaft.

    That meant I had to take the top off but the fix was simple enough. What I found was that set screw was missing in the pulley. Probably laying somewhere in the sawdust. I ran a HUGE old TV magnet in there but found nothing but the metal cabinet. Luckily I had a set screw in my parts. Put it back together, aligned it and no noise!
    God grant me the senility to forget the people I never liked anyway,
    the good fortune to run into the ones I do,
    and the eyesight to tell the difference.


    Kudzu Craft Lightweight Skin on frame Kayaks.
    Custom built boats and Kits

  2. #2
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    Doesn't sound too bad, it's nice when things go that easy.
    Darren

    To a small child, the perfect granddad is unafraid of big dogs and fierce storms but absolutely terrified of the word “boo.” – Robert Brault

  3. #3
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    Isn't it nice when a plan comes together?
    When the going gets weird, the weird turn pro. - Hunter S. Thompson
    When the weird get going, they start their own forum. - Vaughn McMillan

    workingwoods.com

  4. #4
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    Nice to see it was a straight forward fix, unlike your tractor eh
    The pessimist complains about the wind; the optimist expects it to change; the realist adjusts the sails.
    William Arthur Ward

  5. #5
    Jeff I am laughing, not at you but the situation. I had something similar on my bandsaw. With a very low amount of shop time, when I do get in my shop, I go, go,go...

    So stopping to fix a rubbing noise is not something that I want to do. When my bandsaw broke a blade, I finally tore it down to find the pulley had moved and was hitting the guard around the bandsaw. It was a 5 minute fix and yet I let it go one for a few months.

    I am hoping that maybe this fall I can go through my shop and adjust and reset all my tools to straight, square, level and flat. I used to do this once a month but ever since the baby came along, I just have not had the time.
    I have no intention of traveling from birth to the grave in a manicured and well preserved body; but rather I will skid in sideways, totally beat up, completely worn out, utterly exhausted and jump off my tractor and loudly yell, "Wow, this is what it took to feed a nation!"

  6. #6
    Join Date
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    Quote Originally Posted by Travis Johnson View Post
    Jeff I am laughing, not at you but the situation. I had something similar on my bandsaw. With a very low amount of shop time, when I do get in my shop, I go, go,go...

    So stopping to fix a rubbing noise is not something that I want to do. When my bandsaw broke a blade, I finally tore it down to find the pulley had moved and was hitting the guard around the bandsaw. It was a 5 minute fix and yet I let it go one for a few months.

    I am hoping that maybe this fall I can go through my shop and adjust and reset all my tools to straight, square, level and flat. I used to do this once a month but ever since the baby came along, I just have not had the time.
    Travis you don't have to adjust all the tools at the same time. Just do 1 each time you go out to the shop or one a week.
    "Forget the flat stuff slap something on the spinny thing and lets go, we're burning daylight" Bart Leetch
    "If it ain't round you may be a knuckle dragger""Turners drag their nuckles too, they just do it at a higher RPM"Bart

  7. #7
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    May 2007
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    Orem, Utah
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    Jeff, I had a similar problem recently with my Delta midi lathe. It's a little over 5 years old, and it had been making a light "clack-clack-clack-clack" sound, especially when spinning down after I turned it off.

    I assumed the problem was in one of the headstock bearings. I had heard that it was a good idea to replace the stock bearings; they could almost be counted on to fail, etc.

    So ... I pulled the whole spindle assembly apart and figured out how to get the bearings off. When I spun each bearing by hand I couldn't hear anything like a "clack" but I could discern a slight dragging noise in one of them. I got out my digital calipers, measured the width, the outer diameters, the inner diameters, and then went online to discover the wonderful world of bearings.

    A couple hours of research later, I had blazed a torturous web path from very expensive industrial bearings to the run-of-the-mill kind I really needed ... at an eBay store! I ordered 'em ... they arrived in a few days.

    I reassembled the headstock spindle assembly with the new bearing set, turned the machine on ... and still got the light "clack-clack-clack-clack". Huh?

    "Duh!" I said to myself, "I didn't even think about the bearings on the lower pulley shaft." (Shows what a noob I am ... that would be the shaft turned by the motor. Exactly where bearings don't belong! ) In the process of learning that the motor shaft didn't have external bearings, I noticed ... that ... I could turn the pulley a short distance back-and-forth on the motor shaft!

    I removed the setscrew, saw where it had dug a widened divot into the shaft, spun the pulley halfway around the shaft, tightened the setscrew ... and the light "clack-clack-clack-clack" disappeared!

  8. #8
    Join Date
    Nov 2006
    Location
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    One of the things I do is used locktite when I am assembling a tool it sure helps take care of things in the future that could cause problems.
    "Forget the flat stuff slap something on the spinny thing and lets go, we're burning daylight" Bart Leetch
    "If it ain't round you may be a knuckle dragger""Turners drag their nuckles too, they just do it at a higher RPM"Bart

  9. #9
    Or drive a set-screw on top of a set screw to hold it in. I've done that before.
    I have no intention of traveling from birth to the grave in a manicured and well preserved body; but rather I will skid in sideways, totally beat up, completely worn out, utterly exhausted and jump off my tractor and loudly yell, "Wow, this is what it took to feed a nation!"

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