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table saw motor binding electrical smoke resistance noise jerky....how BAD bentley 04-04-2009
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Posted by jloomis on April 4, 2009, 9:22 pm
also.....Bearings......?
jloomis
> My table saw motor has gone bad. It was like the blade was binding on
> something, and came to a fast stop when switched off. Then there was
> significant electrical smoke I had to air out. I unplugged it for a day.
> Now when I plug it in and start it it seems as if there is a series of
> jerky electrical resistance spurts, accompanied by a pulsating noise.
> Like the motor is firing against itself - resisting its own powered
> rotation by sending quick spurts of electricity power in the wrong
> direction. Rough, brief, jerky rotation.
> It came with a complete manual listing all parts including a full motor,
> but also has a separate exploded parts illustration of just the motor.
> Unfortunately it's out of warranty. So can I suspect to replace any
> parts, without having to replace the whole motor?
> table saw motor binding electrical smoke resistance noise jerky....how BAD
> Mastercraft 55-6886-6 10" 15A 120V 60Hz 3.0 hp max 5000 rpm no-load speed
>
http://www.canadiantire.ca/browse/product_detail.jsp?FOLDER%3C%3Efolder_id=2534374303523072&bmUID=1238874397130&PRODUCT%3C%3Eprd_id=845524443277381&assortment=primary&fromSearch=true



Posted by Jimw on April 6, 2009, 4:17 am
>It came with a complete manual listing all parts including a full motor, but
>also has a separate exploded parts illustration of just the motor.
>Unfortunately it's out of warranty. So can I suspect to replace any parts,
>without having to replace the whole motor?
>table saw motor binding electrical smoke resistance noise jerky....how BAD

If there was smoke coming out of the motor, the motor is shot.
PERIOD.
One of the windings burned up....

Maybe you can get replacement parts for that motor, or just a new
motor. Unfortunately that generally costs as much as a new saw (or
other tool). But some companies might be cheaper.

Another option would be to take the motor to an electric motor
rebuilding shop. Maybe they can rewind the bad windings much cheaper.
All you can do is ask them for an estimate.

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