Sabre52
Cave Dweller
Me and my gal, Rosie
Member since August 2005
Posts: 20,471
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Post by Sabre52 on Jul 30, 2014 16:40:20 GMT -5
Howdy folks, Question for you mechanical types. The Dayton motor on my Covington saw has started to make sort of a clicking/popping sound where before it just made typical motor noises. Used a paper towel roll to put to my ear to make sure the sound originates in the motor and it does. Saw still seems to be cutting well and the motor runs normally except for the new sound. Any idea what this might be and if it's anything to worry about?.....Mel
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Post by Peruano on Jul 30, 2014 17:13:56 GMT -5
Occasional clicking like an electrical spark? I'd bet that worn brushes would result in some sparking (turn out the lights ?) Or is it a rapid clicking like a bearing that is floating out of position once in awhile? These are wild thoughts that come to mind. Motors are terribly forgiving and tend to run until they die in a cloud of smoke or sigh of anguish. We all use old swamp cooler motors but when we have to buy a new one we should look for a capacitor start and a thermally protected motor and probably should run it through a gfi protection device to interrupt the current if things go south. Good luck in figuring it out. Tom
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Deleted
Deleted Member
Member since January 1970
Posts: 0
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Post by Deleted on Jul 30, 2014 18:48:22 GMT -5
My guess is a dry bearing also. The clicking is a catch and release thing. JIm
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stephent
starting to spend too much on rocks
Member since March 2014
Posts: 213
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Post by stephent on Jul 30, 2014 19:42:07 GMT -5
Check pulley setscrew(s). Or possibly pulley center/arms if it's not a solid pulley. Clicking/popping doesn't sound like bearings....they usually make a faster rough gritty buzzing/ringing sound. A crack in the pulley will click/pop. A chip in the pulley will too.
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Sabre52
Cave Dweller
Me and my gal, Rosie
Member since August 2005
Posts: 20,471
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Post by Sabre52 on Jul 30, 2014 20:06:51 GMT -5
You know, I will check that drive pulley. It came loose when my belt broke the other day and I put it back on and tightened the screw but maybe it's working loose again. Thanks guys.....Mel
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Post by johnjsgems on Jul 30, 2014 20:19:04 GMT -5
Loose set screws on pulleys make lots of strange noises. A drop of NON HARDENING Loctite does wonders for keeping set screws tight. For routine maintenance blow out the windings occasionally with compressed air. A build up of dust can cause a motor to over heat. If it has oilers a few drops of oil every 6 months or so.
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Post by Rockoonz on Jul 30, 2014 22:46:16 GMT -5
I vote set screw too, and agree with John, small drop of lowest strength loctite will keep it from vibrating loose. if the motor shaft has a flat on it take some extra time to make sure the setscrew is centered on the flat.
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Sabre52
Cave Dweller
Me and my gal, Rosie
Member since August 2005
Posts: 20,471
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Post by Sabre52 on Aug 2, 2014 7:59:30 GMT -5
All y'all were correct, it was the pulley that had worked loose. Thanks you guys!......Mel
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Post by johnjsgems on Aug 6, 2014 18:21:00 GMT -5
We are smart and good looking (at least online).
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