The Dewalt grinder is a versatile power tool to have in any home garage. The grinder supports not only grinding wheels but also brushes and sanding discs. The grinding wheel, sometimes known as the blade, wears down as you grind steel. Changing a Dewalt grinder wheel is a matter of locking the spindle so the wheel does not rotate during removal. Replacement wheels are available at home improvement centers and Dewalt authorized dealers.
Unplug the Dewalt grinder power cord from the outlet. Press and hold the spindle lock on the stem of the grinder between the wheel guard and the body. Rotate the wheel with your other hand until it locks into position.
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Turn the nut securing the wheel to the spindle counterclockwise with the supplied wrench that came with the grinder. If you cannot locate the original wrench, use a regular wrench to remove the nut.
Pull the old wheel and the backer plate off the stem of the grinder. Place the backing plate back over the stem with the concave of the plate pointing away from the grinder.
Place the new wheel over the stem, resting the hump on the top of the wheel inside the concave of the backing plate. Thread the securing nut onto the stem until the stem begins to turn. press and hold the spindle lock while tightening the nut with the wrench.