Bench Grinder Guards Osha. Proper guarding is one of the most important safety requirements. With an abrasive wire brush or buffing wheel attachment grinders sharpen tools and shape clean or polish metal pieces. The maximum angular exposure of the grinding wheel periphery and sides shall be not more than 90 deg except that when work requires contact with the wheel below the horizontal plane of the spindle the angular exposure shall not exceed 125 deg.
This exposure shall begin at a point not more than 65 deg. With an abrasive wire brush or buffing wheel attachment grinders sharpen tools and shape clean or polish metal pieces.
A hazard exists because of the turning shaft and nut end.
Ensure tool rest and tongue guard are in place and able to meet spacing requirements. Bench grinders are mounted to a bench or tabletop while pedestal grinders are mounted to the floor on a pedestal. Grinders use powered rotating attachments to work metal and other materials. Safety guards used on machines known as right angle head or vertical portable grinders shall have a maximum exposure angle of 180 deg and the guard shall be so located so as to be between the operator and the wheel during use.
