I know this isn’t about trains but I need to know how to wire my tablesaw motor for 220 v. It’s a sears 1 hp and I wrote them but they said it was sold in 1964 and they didn’t have any info on it except an exploded view of the parts but no instruction manual. It’s a model 113.12200 cat #1220. If any of you have a diagram for it I would really appreciate it.[:)]
Hello Trainut 1950: My advice would be to take it to a motor shop, you might also have to change the on/off switch to a double pole switch. Whatever you do please remember to do it right & safely. Kind regards Steve (Electrical Contractor 30 years I.B.E.W member)
Why?
Why, because most of my shop equip is 220 and it starts better and seems a little more powerful. My son is graduating from his commercial apprenticeship next month Steve. It’s been 5 long years but worth it. I figured I would take it to a shop if I can’t find the directions. And yeah I installed a double pole switch too. John
If you want more power, you need a more powerful motor, which is not the same thing as a higher-voltage motor. A 1-horsepower 240-volt motor will give you the same power (1 horsepower) as a 120-volt motor.
Hello: Your right the HP will be the same on 120v or 240 v . The start & run current will be half on 240v, also the efficiency will be slightly better on 240v. Regards Steve
A lot of shop tools are set up for 120 or 220 volt operation. They won’t be more powerful, but for continous operation, planners, whole shop vacs etc. they will run cooler. On a lot of motors where the wire feeds into the motor, on the inside of the motor or on the reverse of the plate it will have a wiring diagram for 120/220 set up. If the tool was designed for 120/220 the switch will be adequate. Remember you will need to change the plug end also to match the 220 recepticle.
I mean 240 in the above post
I don’t mean to be disrespectful and I appreciate all the replies but, I know about receptacles, plug ends & volts & watts & amps and double pole switches. I just need the instruction sheet to the motor so I can wire it correctly. Please don’t take this wrong, I just don’t need the advice. (insert smiley face here to make it better) John
Trainnut1950
Emerson Tool Company manufactured RA saws for Sears between 1958 and 1992 in 8, 9 and 10 inch sizes. Your saw may be among them.
You might see whether you can find any info from them:
http://www.emersontoolcompany.com/
The Sears site can provide manuals back to about 1970, I believe. Try model 113.23100. It is possible that it is sufficiently similar to yours.
When I bought mine, I eventually re-wired it for 220 volt operation. Like Bill Clinton, I did it because I could. It seemed like a good idea at the time. However, I wouldn’t do it again.
Frankly, I don’t think you’d notice a dime’s worth of difference. I recommend leaving 40+ year old wiring alone rather than take a chance that the higher voltage would have an adverse effect on the insulation or you personally.
Hope you receive this opinion in the spirit in which it is offered.
wolverine49
thanks for the info. john
Check out the "old wood working machine site at ( http://www.owwm.com/ ) It will take some digging, and even if you don’t find it, you’ll have fun
Bob