My Dewalt 20V grinder jams during grinding with a 4.5-inch disc on steel, it stalls and spindle feels tight. If anyone of you know the solution please tell me?
Worn bearings causes jams. Replace spindle assembly, my Dewalt 20V runs smooth now. Use a 24-grit disc for less resistance, clean spindle with alcohol, tighten flange nut to prevent stalling.