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100%Chevy · 05-03-2010, 10:13 PM

Dewalt,Black and Decker and Craftsman are pretty much the same grinder.
Sounds like you need new brushes.
Take the grinder with it's part/serial number to the nearest dealer or wholesale house and ask for the brushes.
They're easy to change out.
Also,take a piece of fine emery cloth(180 grit)and clean the black carbon off the commutator.It's the part of the motor that the brushes ride on.
The black carbon and worn brushes cause a bad connection and will make it throw sparks.
Less than a $10.00 repair.
Mike.

05-03-2010, 10:13 PM	#8
100%Chevy Registered User Join Date: Jun 2008 Location: Moss Point,Ms. Posts: 1,439	Re: Angle grinder trouble Dewalt,Black and Decker and Craftsman are pretty much the same grinder. Sounds like you need new brushes. Take the grinder with it's part/serial number to the nearest dealer or wholesale house and ask for the brushes. They're easy to change out. Also,take a piece of fine emery cloth(180 grit)and clean the black carbon off the commutator.It's the part of the motor that the brushes ride on. The black carbon and worn brushes cause a bad connection and will make it throw sparks. Less than a $10.00 repair. Mike.