Or one fourth of the periphery.
Bench grinder guards osha.
The maximum angular exposure of the grinding wheel periphery and sides for safety guards used on cylindrical grinding machines shall not exceed 180 deg.
Wood guards also may be used in construction work and in outdoor locations where extreme cold make metal guards undesirable.
The adjustable tongue guard helps suppress flying debris and sparks.
Osha machine guarding e tool rev 3 31 17.
Floor stand and bench mounted abrasive wheels used for external grinding shall be provided with safety guards protection hoods.
In the case of pedestal grinders this includes anchoring the pedestal to the ground.
Wire wheel guarding question.
The angular exposure of the grinding wheel periphery and sides for safety guards used on machines known as bench and floor stands should not exceed 90 deg.
Above the horizontal plane of the wheel spindle.
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A hazard exists because of the turning shaft and nut end.
Proper guarding is one of the most important safety requirements.
Check the following before using your grinder.
Fed osha 1910 215 cal osha 3577 securely anchor the bench grinder.
Adjustment of guard shall be such that pieces of an accidentally broken wheel will be deflected away from the operator.
The wheel guard enclosure should cover most of the wheel the spindle and the wheel mounting hardware.
Above the horizontal plane of the wheel spindle.
Grinders use powered rotating attachments to work metal and other materials.
Bench grinders are mounted to a bench or tabletop while pedestal grinders are mounted to the floor on a pedestal.
Missing or improperly adjusted guards are common and frequent safety violations.
With an abrasive wire brush or buffing wheel attachment grinders sharpen tools and shape clean or polish metal pieces.
Bench and floor stands.
There are four basic safety elements to the bench grinder that serve as guards or shields.
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.
The flange and spindle guard protect the worker from the spinning wheel.
See figures o 10 and o 11 and subparagraph 9 of this paragraph.
The eye shield is an optional protector for the worker who should be wearing eye protection.
This exposure shall begin at a point not more than 65 deg.
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.
Ensure tool rest and tongue guard are in place and able to meet spacing requirements.
In all other industries wood guards are not allowed per 29 cfr 1910 219 o 2.
On pedestal or bench grinders the employer will sometimes use a wire wheel instead on an abrasive wheel.