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Thread: Grizzly 514 Bandsaw Problem

  1. #1
    Join Date
    Nov 2015
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    Philadelphia, PA
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    Grizzly 514 Bandsaw Problem

    Hi All-

    I've got a 514 bandsaw that I'm having issues with. It had been working fine; went to start it up today and it seemed like it was tripping the breaker (would quickly fire up and die). But the breaker wasn't tripping. I was using an AFCI circuit; replaced that with a standard circuit to no avail. At this point, it powers up but does not spin the blade. Wheels turn freely, drive belt is where it should be. There is definitely an electrical smell when you fire it up. I just unplugged it and stopped screwing with it.

    Other tools (tablesaw, jointer) work fine plugged into the same circuit. I pulled off the two covers of the electircal wiring on the saw; nothing looks burned up or anything, but other than that I don't really know what I'm looking at.

    I guess my question is A. how do I troubleshoot the motor on this saw, B. am I missing something obvious that could be the issue?

    Thanks for any help!

  2. #2
    Join Date
    Apr 2009
    Location
    Columbus Ohio
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    307
    Start capacitor?? I had a grizzly planner do a similar thing. It ended up being the capacitor.

  3. #3
    Join Date
    Nov 2015
    Location
    Philadelphia, PA
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    46
    Friend suggested the same thing. Any idea how I troubleshoot that? Or do I call a pro?

  4. #4
    Join Date
    Feb 2003
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    Doylestown, PA
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    5,647
    Couple thoughts.

    1) Capacitors are cheap. Replace it and see if it helps. The electrical smell would point to this being the problem in my non-expert opinion.
    2) This one comes with some risk so think it through. Take the blade off, put your finger on the rim of the driven wheel, push the power button and immediately spin the wheel in the correct direction. If it starts and runs it's likely the start cap or maybe the centrifugal switch.

    When I bought my Rikon band saw I had a problem with it not starting and tripping the Circuit breaker after a few seconds. "Hand propping" the wheel got it to start and run as expected. There was no smell with my problem. I never did find out the problem, Rikon sent me a new motor and I disposed of the old one. In hindsight I should have taken it apart just for the educational value.

  5. #5
    Join Date
    May 2007
    Location
    Trinidad, West Indies
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    388
    There are cheap capacitance testers available from amazon. Bad capacitors may also show signs of leakage or bulging. A clip on ampmeter is also useful for testing and troubleahooting.

    MK

  6. #6
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    May 2007
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  7. #7
    Join Date
    Sep 2016
    Location
    Modesto, CA, USA
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    1,896
    [QUOTE=Curt Harms;2864537]Couple thoughts.

    1) Capacitors are cheap. Replace it and see if it helps. The electrical smell would point to this being the problem in my non-expert opinion.
    2) This one comes with some risk so think it through. Take the blade off, put your finger on the rim of the driven wheel, push the power button and immediately spin the wheel in the correct direction. If it starts and runs it's likely the start cap or maybe the centrifugal switch.


    Remove belt, spin it up as fast as you can, then push the start button with your hands off the moving parts.
    S

  8. #8
    If its a capacitor problem, you can buy another one for about a fiver, you might need it in the future anyways as they do go, even if its not the issue.
    Looking for a replacment from Grizzly will probably be a lot more expensive.
    The capicator will have a uF symbol on it with a number... this uF symbol means micro farad.
    Look what uF rating it says, thats what you need to get...
    Just make sure to measure the old cap dimentions, or see if there's more space in the motor terminal housing for a larger sized one, as equally rated caps do vary in size.


    Tom

  9. #9
    Join Date
    Dec 2006
    Location
    Toronto Ontario
    Posts
    8,898
    A possible issue is that the arc in the start switch may be tripping the arc detection breaker.

    I've seen this with various single phase machines.

    However since you're experiencing this on other branch circuits I would check the start switch, the start capacitor and measure the insulation resistance to ground.......Rod
    Last edited by Rod Sheridan; 11-13-2018 at 2:31 AM.

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