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Motor burned Plugged 1 phase 220V table saw into a 2 phase 220V power supply. Motor burned? what to do?

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  • 69 Answers

Single phase 220 volts actually uses two 110 phases to deliver 220 volts. So the failure was caused by something else. The motor winding insulation may have been cracked or previously damaged by high current. The solution is to replace the motor or have it refurbished (not cheap).

Posted on Jun 26, 2014

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Posted on Jan 02, 2017

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SOURCE: I have a Craftsman table saw with a burned out

SOUNDS LIKE THE PROBLEM I HAD, BUT WAS JUST A SEIZED-UP BEARING. I WENT TO LOCAL ELECTRIC MOTOR REPAIR ($15.74) PARTS AND LABOR, THEY REPLACED THE BEARING, THERE ARE 2 BEARINGS ON IT, COST IS THE SAME FOR EACH. THE BEARING IS PRESSED ON, SO REPLACEABLE. HOPE THIS HELPED

Posted on Apr 15, 2009

  • 1 Answer

SOURCE: Wiring diagram for a Sears Craftsman 110/220V motor

I found a local small motor technician who was able to help with the wiring configuration for the 110/220: I had wanted the motor to run on 110V

Posted on Dec 04, 2009

  • 1 Answer

SOURCE: New or used motor for a Craftsman 10" table saw

Sears no longer sells repair parts for this motor, only the whole motor as a replacement part, and it is $140.00, but you can buy replacement bearings from drillspot.com the bearing needed is an Enduro 6200 zz c3

Posted on Apr 17, 2010

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I have a 12 inch chraftsman table saw with 2 wires coming from motor. The wiring diagram inside the cap shows it to be wired for 240 how do I wire that thru a switch and to a three wire recepticle


Not quite sure what your question is - Are you trying to plug a 240 into a 110/120 outlet? Or are you trying to plug this into a 240 3 prong outlet?

Traditionally, table saws don't come with a power cord - you must supply one. Usually on the motor there is a metal plate that describes volts/amps/phase/hp etc. Get the Volts/Amps from this plate, then measure the approximate distance between your table saw and the 240 outlet. The gauge of the power cord depends upon the Volt/Amps and the length of the cord. There are many volts/amps vs length for wire gauge conversions on the net. I always get a bigger wire (smaller gauge) than what is recommended. Expect to pay $100 or more for the cord (don't be cheap here). If you have an under rated cord, you can start a fire, burn up your motor, melt plugs into outlets and have to replace the outlet (don't ask how I know).

I'm a little suspicious of the "white and black" wire from 240 - it's usually "white and red" with a "black" ground. 240 is made from two 120's - opposite sine wave. So black is usually the common ground, while the white and red are the two 120's. Volts between white-red=240, white-black=120, red-black=120. If you're absolutely sure that white-black=240, then you can just connect a ground wire to the motor case. Many home table saws can be wired for 240 or 120 - you need to make sure that you're hooking 240v to the correct wires. If you're uncertain at all, then don't do it.

I have wired 120 to a 240 motor by accident and the motor ran - it had no power and didn't spin at full RPM. You can damage a motor this way, so I wouldn't recommend it. I have never put 240 to a 120 motor - so I don't know what happens (guessing you could burn up the motor coils).

With all that being said, if you have 240 outlet with 3 wire receptacle, then just use a multi-meter to determine the 2 "hot" and the 1 ground. Volts from hot1-hot2=240, hot1-ground=120, hot2-ground=120. If you don't have a multi-meter, buy one (approx $12). Once you have it wired up, then try the motor by flipping the switch on then off again. If the motor didn't spin, then you did something wrong. If it hummed but didn't spin, you have some connections wrong inside of the motor. If it spins the wrong way, then your wiring inside of the motor is wrong (doesn't help to flip the wires on the outlet). If you blew a circuit breaker, then the wiring to the motor is wrong.

Sep 27, 2014 | Saws

1 Answer

Powermatic 66 wiring problem


Simple solution: switch two of the wires. Doing so will reverse the direction of the motor. You can switch it at the motor or on the electrical plug end.

Mar 28, 2013 | Powermatic 66 10" 3 HP 1 Phase 230V Table...

1 Answer

New table saw motor very weak and has problem kicking on


Is there an external phase shift capacitor for the motor? A defective phase shift capacitor can cause no or slow motor rotation and reduced motor power.

Nov 04, 2012 | Craftsman Saws

1 Answer

My table saw will not start. the power source is good.


If the motor is using a single phase supply there will be a capacitor which could have reduced in value- open.
If so try and use a capacitor in parallel to see if the motor works-- in this case the motor might hum and get heated up.

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1 Answer

I have a brand new IR compressor model 2475N7.5 with a 7.5 hp 460v 3 ph motor. is it possible to convert it to a single phase power supply? or should i just exchange it? ... I ordered it thru Northern Tool...


When you google home made 3 phase converters, you will find many ways to make use of 220v single phase instead, however you are limited as to the hp that the motor will produce. If you spin the motor first then apply 220v, the motor will continue to turn at much reduced hp. You need full power to turn a type 30 pump depending on pulley combination/ setup. Best to return the unit and get one that will run on 220v single phase. It will most likely consume more power to do the same work however it would cost a great deal to install 3 phase. Most likely not even available at all. Many years ago, I worked at Sears and happened to see an electrician coming down from roof access of building. He told me that sears had a 3 phase generator being turned by a 220v single phase motor to run an air conditioning unit. He said that it worked quite well. Does not sound cost effective.

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I have a powermatic table saw, 7 years old with a 2 hp baldor motor and when i start it the motor hums but the blade just shakes back and forth. I can turn the blade by hand and rotate the motor fan...


You may have lost power on one of the wires to the motor. Check the wiring for breaks, if you have a meter make sure there is power to the 2 110 volt wires.

Jan 09, 2010 | Powermatic 66 10" 3 HP 1 Phase 230V Table...

2 Answers

My Powermatic 66 table saw won't start. Tried to turn on my Powermatic 66 table saw this morning. Blade moved one half inch as if trying to start. Tried reset button on motor, still nothing.  I...


Your saw motor is equipped with a two speed internal start switch. Over time saw dust will get into the contacts and cause the points to burn. You can pull the end off of the motor and take some 400 grit sandpaper to the contacts to clean them( there are two sets of contacts one works in the out position the other in the in position) it will be the set in the in position that is the problem. Gentle clean them, reassemble the motor end cap and it will work fine. I have to do this about once a year to my saws. I use my saws about 25 hours a week. I have been doing this to one of my Powermatic saws for 31 yrs. now.

Jun 08, 2009 | Powermatic 66 10" 3 HP 1 Phase 230V Table...

3 Answers

Dewalt 7749 radial arm saw


According to the service manual this saw has a 120VAC single phase 2.5 Hp motor with a 5/8" x 1.5"long arbor. It has a maximum vertical cutting depth of 2 and 15/16". It has a maximum cutting depth at 45 degrees of 2.125" (2 and 1/8") without the lower guards. The maximum cutting depth at 45 degrees with the lower guards in place is 1.625" (1 and 5/8"
The service manuals (approximately 24 megabytes each) are available on line at Dewalt.com After creating an account. Then you should go here:

http://www.dewaltservicenet.com/Products/DocumentView.aspx?productid=18624&typeId=1495&documentId=574

for the manuals.


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