Question about Dewalt DEWD28110 Heavy Duty 4 12" (115mm) Small Angle Grinder

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Fault on a Kinzo 115mm Angle Grinder

I have a Kinzo 115mm Angle Grinder. When I was using it on a job I got carried away and eventually brown smoke came billowing from the Grinder. It no longer works could anyone suggest what is likely to be wrong with it?

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Hi J,

Hopefully you just wore out the brushes. Replacement kits are available for a few bucks and the fix is pretty easy.

On the darker side, If it overheated enough that it burned the windings (insulation melts, shorts, badness), there isn't much you can do unless it's still under warranty.

You won't know until you get it apart. You'll know which it is at a glance.

Unplug it and dismantle the base of the grip where the cord is attached.

The brushes are small spring loaded graphite blocks that transfer electricity to what looks like a cylinder around the central drive shaft that has a lot of vertical copper strips on it. They are normally housed inside small copper tubes opposite each other.

If those tubes are empty but for the spring, it's brushes.

If the insides are full of ashy residue, it's not the brushes

Best regards and I hope it it's the brushes

Mike

Posted on May 27, 2010

Testimonial: "Excellent-many thanks."

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