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Bench grinder switch

I'm trying to find a power switch for an MD3215 bench grinder, 250v/120v, 3/4HP, 3420RPM... any suggestions?

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

  • 718 Answers

SOURCE: switch and capacitor crapped out on 1/2 hp Sears bench grinder

Replacement should be simple. Just do a one for one hookup with the new part, after you unplug it first.
For a diagram go to;

http://www.searspartsdirect.com/partsdirect/getSubComp.pd?modelNumber=397.1949&productCategoryId=0721000&brandId=0247&modelName=CRAFTSMAN-1%2F2-H.P.-GRINDER&diagramPageId=00001&documentId=00023041&pop=flush

Posted on Mar 28, 2009

  • 384 Answers

SOURCE: NEED ON/OFF SWITCH FOR BUFFALO BENCH GRINDER

You can get a replacement toggle switch at any hardware store look in the electrical department.

Posted on Jun 11, 2009

rowdy45176
  • 2176 Answers

SOURCE: I need a replacement switch for a craftsman 1/2 HP bench grinder

this switch is no longer available from Sears, so I suggest making a wiring drawing and taking the switch to a local electrical supply house and try matching it up with a replacement. It seems to be a simple on/off type switch and I would think that you should have no problem. Let me know if you do and give me the information on the switch and I will try some other sites I know.

Posted on Dec 28, 2009

Testimonial: "Great solution. Yhank you. - b"

  • 172 Answers

SOURCE: Need part numbers to replace eyeshields on Dayton bench grinder

Your grinder is listed on page 3085 of the Grainger catalogue. The part number for the eyeshield is 00281.00 and the number for the lower eyeshield bracket is 00280.00. The right hand upper eyeshield bracket is number 25188.00 and the upper left hand bracket number is 25177.00. All of this can be ordered through Grainger at 1-800-323-0620. Marvin T.

Posted on Jan 13, 2010

Testimonial: "This was very helpful. I have ordered parts from Grainger. Thank You."

rowdy45176
  • 2176 Answers

SOURCE: I am looking for a Dayton Bench Grinder Manual

I would try and call Grainger parts to see if they have one. I know they deal with and sell Dayton equiptment. If no luck let me know and I will try and find another source.

Posted on Mar 25, 2010

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I need a replacement switch for a craftsman 1/2 HP bench grinder model#397.19441. I have no owners manual or parts list. This grinder is several years old.


this switch is no longer available from Sears, so I suggest making a wiring drawing and taking the switch to a local electrical supply house and try matching it up with a replacement. It seems to be a simple on/off type switch and I would think that you should have no problem. Let me know if you do and give me the information on the switch and I will try some other sites I know.

Dec 28, 2009 | Craftsman Grinders

1 Answer

Given a bench grinder which did not work. How to test/fix?


I cleaned all the wiring connectors etc and used a 4-way extension cord with an i/o switch and thermal/arc breaker surge protector thingy. I had a piece of thick cable with a molded three prong plug which I had removed from a dead paper shredder (I think??) and connected the ground to the case (previously not connected) the black to the black and white to the white. I taped the connections and plugged the test cable into the extension thingy with its switch off and plugged it into the wall outlet. Then, with the grinder switch on, I gingerly switched on the extension thingy and the grinder (sans all moving parts) ie just the motor case and spindle (held securely in the B&D workmate) and viola(!) it worked fine and built up to very fast. I switched off the grinder switch and the motor slowed, taking an age to come to rest.
Then, I fitted a grinding wheel on the left hand thread end, tightened everything and retested, using the grinder switch to start it and it spun really fast.
Soooo, I guess the secure ground is an essential feature of a capacitor induction motor. I checked some old furnace motors that were "maturing" in the basement and they had no capacitor but only 2 wires...
I am now trying to remember which parts came off last and put it all back together. I plan to test it each time I put a part back...just in case. I hate it when you fix something on the bench and when rebuilt, it won't work...don't ask about the electric starter on the snowblower..not a happy puppy!
Please, pretty please and then some, do tell me if my "fix" is wrong and I could risk all kinds of nastiness.
Thanks,
Jenni.

Jan 24, 2009 | Grinders

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