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Old 09-19-2011, 12:00 PM   #1
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Radial saw


I have a craftsman 10" radial saw that is approximately 30 years old. When I flip the power on, the power to the motor is active, but the blade will not spin/freezes . In the past, I would turn the power off and manually rotate the blade. I would then turn the power back on and this was enough to get the blade to spin.

My question is "is there a lubrication point on the motor that would prevent this from happening or is the saw toast"?. I cannot find lubrication point.

Thanks for any info.

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Old 09-19-2011, 12:08 PM   #2
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Take a look at the brushes and see what you find before you do anything else.

When you turn it on does the blade seem to want to wobble a little as if it was trying to start?

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Old 09-19-2011, 12:49 PM   #3
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Probably sealed bearings, so nothing to oil, and I would suspect the brushes, as Bud mentioned. Also, if there is a "hump" with a removable cover on the side of the motor, remove the cover, check the capacitor for leakage, and replace if necessary.
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Old 09-19-2011, 01:31 PM   #4
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There are times will blade will try to begin to spin. But, if I wait for the blade to reach full RPM it will trip the reset button.
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Old 09-19-2011, 01:35 PM   #5
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There are times will blade will try to begin to spin. But, if I wait for the blade to reach full RPM it will trip the reset button.
I'm thinking that sounds like a bad capacitor that isn't staging properly. See what the brushes look like first.
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Old 09-19-2011, 02:35 PM   #6
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Radial saw


It's probably an induction motor. It may not have brushes. I'd look for a fried start capacitor. If not then the start windings in the motor may be bad. If so, a motor shop might be able to rewind it for you. With Sears it's hit or miss whether you'll be able to get a replacement.
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Old 09-19-2011, 02:46 PM   #7
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6 you may be correct about all of that.

Just so happens I have a Sears Craftsman Radial Arm Saw that is thirty years old also. You caused me to leave my easy chair and go look at mine. Of course it is currently buried in my garage.

Best I can see there is no access to the brushes afterall and there also is no external capacitor on mine.

I have the Parts number and tried to look it up but of course here is what I got:




Quote:
PartsDirect.com is currently unavailable. Please check back after 60 minutes.




For more assistance, please contact our call center:




(800) 252-1698




Monday - Friday 7am - 9pm Central time




Saturday - Sunday 9am - 7pm Central time


Please accept our apologies for any inconvenience. We appreciate your business.




Why doesn't that surprise me?
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Old 09-19-2011, 03:11 PM   #8
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Worse comes to worst there is a recall on those old saws. You will net $100 if you return the motor. They will pay for packaging and shipping.
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Old 09-19-2011, 03:20 PM   #9
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Worse comes to worst there is a recall on those old saws. You will net $100 if you return the motor. They will pay for packaging and shipping.
Tell me more. I could use a hunnert bucks.
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Old 09-19-2011, 03:47 PM   #10
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Google Craftsman radial arm recall and you will find all the info. They will send you a box to put it in and arrange for UPS to pick up the motor
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Old 09-24-2011, 08:32 AM   #11
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Thanks Guys,
I was forwarded a potential solution by maintenance 6. It was a post under electrical.


The end result is that I am using the spin techniques to start the blade. It works and will allow me to get a few more years out of my versatile saw.

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