A protective sleeve insulating a lead wire may wear through on some of the units, bringing the wire into direct contact with the motor shaft and possibly resulting in severe shock if the tool is not properly grounded and if the user is grounded or touching a grounded metal object such as a water pipe. Two cases have been reported where the insulation has worn through, one of which resulted in a shock.
Anyone owning one of these bench grinders should temporarily stop use and write to: Bench Grinder Repair Program, c/o National Service Manager, Portable Appliance and Tool Group, McGraw-Edison Co., 2nd and Vine St., Boonville, Mo. 65233, to get instructions for having the unit checked and repaired free-of-charge. To verify brand names and model numbers, consumers may contact CPSC's toll-free Hotline at 800/638-2772.