The lathe stopped turning even the motor ran fine. I tried to tension the belt. Same problem. Removed the belt could not turn the spindle without great force. Lowered the banjo to release gears. Only the large plastic drive pulley and the small gear were left. Same problem. I think somehow the drive pulley and small gear may be meshed too tight. I see no adjustment . Contacted Grizzly , thought someone here may know what the problem is.