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Thread: Circular saw trouble..? FIXED it:)

  1. #1
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    Circular saw trouble..? FIXED it:)

    have a circular saw that seems to have problems, it locks up and i mean solid.. wont turn but the motor will hum.. i got it back to working by manually jamming it into a post top and breaking it loose inside somewhere then it worded for awhile then did it again once you get it loose it sounds and runs fine. any ideas from your electrical gurus as to where to look when i tear into it today? i have a spare that will go on the job with me from now on..
    Last edited by larry merlau; 05-16-2014 at 06:22 PM.
    If in Doubt, Build it Stout!
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  2. #2
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    If it hums, try teaching it the words. That might help.
    Cheers,
    Roger


    The other member of Mensa, but not the NRA

    Everyone is a self-made person.

    "The thing about quotes on the internet is that you cannot confirm their veracity" -Abraham Lincoln

  3. #3
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    I'm not much good at these things, but could the brushes be worn out and some metal from there is jammed in there somewhere?
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  4. #4
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    Geared saw like a Sidewinder?

    Actually sounds like a new saw to me.
    ++++++

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  5. #5
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    Hi Larry,

    Maybe the main bearings on the blade are worn or sticking too much for the motor to pull on them?

    Maybe try giving it a sniff on the air vents of the motor. Burning motors have a distinct unpleasant smell.
    It's kind of fun to do the impossible

  6. #6
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  7. #7
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    Larry,
    When the saw locks up, can you turn it off (unplug it) and turn the blade freely? Does turning the blade slightly allow the saw to start again?

    It kinda sounds like the commutator may have some shorted segments. If they're shorted internally, you need a new saw, but if they're shorted because of conductive debris (from brush wear) between the segments, then you might be able to use a scribe or a piece of hacksaw blade to scrape the debris out and make the saw usable again.

    Hey, just curious - is that PC 333 sander still working?
    Jim D.
    Adapt, Improvise, Overcome!

  8. #8
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    I'm no help with the saw problem, but...

    Quote Originally Posted by Roger Tulk View Post
    If it hums, try teaching it the words. That might help.
    That's some funny stuff right there.
    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

  9. #9
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    Quote Originally Posted by Jim DeLaney View Post
    Larry,
    When the saw locks up, can you turn it off (unplug it) and turn the blade freely? Does turning the blade slightly allow the saw to start again?

    It kinda sounds like the commutator may have some shorted segments. If they're shorted internally, you need a new saw, but if they're shorted because of conductive debris (from brush wear) between the segments, then you might be able to use a scribe or a piece of hacksaw blade to scrape the debris out and make the saw usable again.

    Hey, just curious - is that PC 333 sander still working?
    the sander is doing fine jim now the saw is locked up with it unplugged jim, i think.. but once i get it broke free it will run fine the outer bearings i believe are good yet.. am going to try your trick first on the unplug to make sure then will take apart look inside.. thanks for the jokes and the info folks.. roger if i taught it the words it would be, Wish i was in Dixie
    If in Doubt, Build it Stout!
    One hand washes the other!
    Don't put off today till tomorrow!

  10. #10
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    well found the problem,, a screw had come loose that held the magnet in place that surrounds the armature, and it had got jammed in the fan part causing everything to be tight. it was getting jarred loose from me hitting it on the post to unlock it.. and was still inside the housing so i could put it where it went so took it apart tightened it all back up and blew out the dust.. good for another house or two
    If in Doubt, Build it Stout!
    One hand washes the other!
    Don't put off today till tomorrow!

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