Jet JTS-250CS Tablesaw

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keithkarl2007

keithkarl2007

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Joined
Apr 22, 2008
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I have the above tablesaw but have just replaced the motor because it had been giving me trouble. Anytime i started it the blade turned very slowly for about half a minute or more before it reached the full rpm. Having replaced the motor with a new Jet motor I am still having the same problem only its for a couple of seconds. Could the brake be stuck on it or what could it be? I'm at my wits end trying to figure out what is causing it.
 
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keithkarl2007 said:
I have the above tablesaw but have just replaced the motor because it had been giving me trouble. Anytime i started it the blade turned very slowly for about half a minute or more before it reached the full rpm. Having replaced the motor with a new Jet motor I am still having the same problem only its for a couple of seconds. Could the brake be stuck on it or what could it be? I'm at my wits end trying to figure out what is causing it.
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Have you checked the starting caps? That could cause similar issues.
 
I wouldn't know much about stuff like that. A neighbour of mine fixes woodworking machinery. He looked at it first when it was giving trouble and figured the motor was nearly gone. I'll mention that to him and see what he says. He is busy at the moment and might not get to look at it for a while.
 
Check the voltage supply line at the motor, you might have a low voltage problem. Also, check the size of the wires that feed the motor and make sure they're large enough to carry the load.
 
It's amazing how dust can get into places you wouldn't think it could. Our Powermatic 66 at work is notorious for dust building up in the capacitors. Regular inspection armed with some compressed air would often bring it around.
 
Lenny said:
It's amazing how dust can get into places you wouldn't think it could. Our Powermatic 66 at work is notorious for dust building up in the capacitors. Regular inspection armed with some compressed air would often bring it around.
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This is a brand new motor only put in a 2 days ago. I have given it a good blowing down to get in and see what the problem is. Glenn Lucas is a good friend of mine and reckons there may not be enough power going to the saw and it would cause the brake to stay on.
 
I went to order a new Poly v-belt for it. The belt itself is around $8 but the place who i was going to order it from wanted $90 to ship it.
 
NotURMailman said:
keithkarl2007 said:
I went to order a new Poly v-belt for it. The belt itself is around $8 but the place who i was going to order it from wanted $90 to ship it.
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:eek: That's nuts!

I would be suspicious of the capacitor(s) as stated above.
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The new motor has an integrated capacitor so i don't think it's that. Glenn Lucas told me there may not be enough power going to the machine and this would cause the brake not to release properly. I'll have to get an electrician in to check it out.
 
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