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Where to purchase a capacitor for a 6 inch gmf bench grinder

Posted by Anonymous on

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

  • 31 Answers

SOURCE: how do you wier up a bench grinder

I would suggest (just from you saying you dont know wireing that well) you should have someone else do it. But if you are determined white to white black to black(or red) make sure you are grounded and check amp to make sure you have the right breaker. I think you should get someone to help you as electrical fires are #1 on home fires .
I hope I helped

Posted on Dec 30, 2009

  • 4088 Answers

SOURCE: How do you tighten the nuts when changing the

Clamp the shaft behind one wheel with 'Channelock' or 'Visegrip' pliers, then tighten both nuts. Check the new wheels for 'off-center' running by spinning them with your hand. They may fit the shaft tight enough that there is no centering adjustment--use a 'wheel dresser' (either a stone type or a multi-wheel type) to true up the wheel so that there is no radial wobble. Hope this helps!

Posted on Oct 23, 2010

  • 4088 Answers

SOURCE: My 6 inch Cummins bench grinder stopped working.

Try wrapping a thin cord around the shaft many times to allow the shaft to be spun in the normal running direction when pulled. Pull sharply on the cord and turn the motor on--if the starting capacitor is bad, the motor should continue to run until shut off. If there is no capacitor, then the motor uses a start winding and a centrifugal switch to start. The switch is supposed to open when the motor comes up to speed. If you used to hear a loud 'click' when the motor was shut off and slowing down, then you likely have the start winding and switch. If the contacts on the switch become burned and not make contact, then it will display the symptoms you mention. You will need to access one or the other end covers to reach the switch. Hope this helps!

Posted on Jan 10, 2011

  • 3 Answers

SOURCE: I have a Taiwan made 1/2 hp bench grinder that won...

I have a CTT Taiwan made bench grinder that I bought at a yard sale for 20 bucks. The sellers told me it had a bad capacitor when in fact the centrifugal gadget that switches off the starter winding was simply out of adjustment, causing the motor to hum and not turn. It can be adjusted through the motor vent slot so you don't even need to take the end cap off. It works great, I upgraded the grinding wheels and comparable 1/2 hp models sell for over $90. Many grinders, and other motors are made with the centrifugal switch.
Fot the Craftsman guy, a 100 ufd 125V AC capacitor should do the trick. They're about $10 at your local appliance parts dealer.
And there are NO brushes in an induction motor.

Posted on Jun 28, 2012

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1 Answer

Replace missing switch on bench grinder


2 wires are not needed to use they are the wires of an supression capacitor on the switch then there are 2 wires from your power cable and 2 that goes to your motor that 4 you only you have to use you can also connect the 2 wires from the s-capacitor with te wires on the motor together thats is how its also correct, (but best is to remove it because its only for suppression for FM ukw radio signals and everybody has DAB+ and the change to have short-circuit is reduced.

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Will not start


The centrifugal switch inside has gotten dirty, or else the start capacitor is disconnected or faulty. It's about time to open that grinder up and examine the centrifugal switch. If it's working OK, then examine the capacitor connections. If they look OK, replace the capacitor.

Apr 25, 2014 | Grinders

1 Answer

My 6 inch Cummins bench grinder stopped working. When you turn on the switch it only has a quiet hum. Is it the capacitor?


Try wrapping a thin cord around the shaft many times to allow the shaft to be spun in the normal running direction when pulled. Pull sharply on the cord and turn the motor on--if the starting capacitor is bad, the motor should continue to run until shut off. If there is no capacitor, then the motor uses a start winding and a centrifugal switch to start. The switch is supposed to open when the motor comes up to speed. If you used to hear a loud 'click' when the motor was shut off and slowing down, then you likely have the start winding and switch. If the contacts on the switch become burned and not make contact, then it will display the symptoms you mention. You will need to access one or the other end covers to reach the switch. Hope this helps!

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I have a 1/3 hp motor with a capacitor. There are four motor leads coming out of motor, the capacitor is mounted in the wiring box. This motor does not have a centrifugal switch, to isolate the capacitor...


I am in the process of replacing a capacitor on a Craftsman 6 in 1/3 grinder, 2.8 amp, single phase, 110v. Not sure on the centrifugal switch. model 319.190621, ser B9530. When I took the old one out the black wire from the capacitor went to the cluster of back wires (in my case 3) in the wire nut. The blue wire from the grinder went to red wire from the capacitor in a wire nut. Hope that helps you....

Maybe you can help me... the specs on the capacitor burned off when it failed. Can you tell me what the capacitor specs are on yours?

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1 Answer

I NEED THE SPECS ON THE CAPACITOR FOR A 9520 6" BENCH GRINDER


remove the cap cover on the motor and its on the side of the cap i.e. mfd/v.a.c.

Mar 19, 2010 | Grinders

1 Answer

Grinder starts and runs then peters out and gets pretty warm. Is capaciter bad?


Most probably. the motor will overamp, get hot and go out on internal overload.

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Grinder won't stay running


The capacitor is easy to change and can be matched once you remove it by any electronics parts house.

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Bench Grinders Featues


A bench grinder is a very simple tool. The units are usually listed as 6-inch or 8-inch wheel models, and the 8-inch units are typically a bit more powerful, and subsequently more expensive. A 6-inch model will usually be powered by a 1/2 HP motor, where the 8-inch will be larger, likely 3/4 HP. Two very useful features to look for are a mounted work light, which will directly illuminate your work, and an adjustable rest, which functions much like the tool rest on a lathe. Strongly consider models which have both features. Many also include a clear, see-through spark guard, which will help keep any sparks from flying toward your face. A word of caution, though: such a guard does not replace safety goggles.

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