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Forum topic by roughcutter83 posted 01-26-2016 04:52 PM 514 views 0 times favorited 7 replies Add to Favorites Watch
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roughcutter83

5 posts in 319 days


01-26-2016 04:52 PM

Topic tags/keywords: tablesaw motor

I have a old craftsman table saw it is not belt driven. When i plug it in it locks up, the saw spins freely when unpluged. I have tried giving it a rolling start, but it just locks down as soon as the power hits it. The saw was a gift from my grandpa mainly becuase he got tired of me take off with his. Any help would be greatly appreciated. Also when i got the saw it was completely unwired.


7 replies so far

View MrUnix's profile

MrUnix

4244 posts in 1666 days


#1 posted 01-26-2016 04:58 PM

Sure would help if you could let us know exactly what saw it is that you have.

Cheers,
Brad

PS: since you mention it was ‘unwired’, that throws up a couple of red flags based on your description of it ‘locking’ when power is applied. Are you sure you wired it correctly? Post some pictures.

-- Brad in FL - To be old and wise, you must first be young and stupid

View TheFridge's profile

TheFridge

5765 posts in 953 days


#2 posted 01-26-2016 05:00 PM

If it’s an older craftsman contractor I’d say it’s probably the start capacitor or centrifugal switch.

-- Shooting down the walls of heartache. Bang bang. I am. The warrior.

View 716's profile

716

502 posts in 383 days


#3 posted 01-26-2016 06:19 PM


If it s an older craftsman contractor I d say it s probably the start capacitor or centrifugal switch.

- TheFridge


He says the “rolling start” does not help. I personally would not do it for safety reasons but that would indicate that it is something besides the capacitor ( if this is an induction motor at all ). Could be for example destroyed ballbearings.

-- It's nice!

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roughcutter83

5 posts in 319 days


#4 posted 01-26-2016 09:30 PM

Thanks for yhe help guys i will find out what kind of saw it is maybe post a pic or two the wiring was a little burnt and did not have a starting compacitor on it doesnt mean it shouldnt have one though

View MadMark's profile

MadMark

978 posts in 920 days


#5 posted 01-27-2016 01:05 AM

Wires burnt?

Sounds like there’s the issue!

Reverse one winding & see if it spins …

M

-- Madmark - Madmark2150@yahoo.com Wiretreefarm.com

View MrUnix's profile

MrUnix

4244 posts in 1666 days


#6 posted 01-27-2016 01:20 AM

Direct drive and no capacitor sounds like one of those portable universal motor things. If so, it’s most likely the rear bearing housing that has warped/distorted (the motor housing is plastic). With enough play, it can allow the armature to come into contact with the windings or under power, pull it enough to bind the bearings. If that is it, there isn’t much you can do other than replace it… or turn it into a router table :)

Cheers,
Brad

-- Brad in FL - To be old and wise, you must first be young and stupid

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roughcutter83

5 posts in 319 days


#7 posted 01-28-2016 03:57 AM

Thanks for all the help guys havent had a chance to work on it i will tomorrow morning.

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