The wheel guard enclosure should cover most of the wheel the spindle and the wheel mounting hardware.
Bench grinder guards osha.
Wire wheel guarding question.
This exposure shall begin at a point not more than 65 deg.
On pedestal or bench grinders the employer will sometimes use a wire wheel instead on an abrasive wheel.
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.
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Bench and floor stands.
Wood guards also may be used in construction work and in outdoor locations where extreme cold make metal guards undesirable.
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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.
The safety rules for this machinery are in the code of federal regulations cfr and osha has a very detailed checklist for the bench grinder on its website.
Should this be cited under abrasive wheel machinery 1910 215 under 1910 212 general machine guarding or 1910 219 mechanical power.
Adjust the tongue guard to within inch of the topside of the wheel.
Proper guarding is one of the most important safety requirements.
There are four basic safety elements to the bench grinder that serve as guards or shields.
Osha machine guarding e tool rev 3 31 17.
Above the horizontal plane of the wheel spindle.
Or one fourth of the periphery.
Check the following before using your grinder.
215 d 1 before new abrasive wheels are mounted are they visually inspected and ring tested.
Use a work rest that is adjusted to within 1 8 inch of the wheel.
1926 303 c 1 floor stand and bench mounted abrasive wheels used for external grinding shall be provided with safety guards protection hoods.
Is the adjustable tongue guard on the top side of the grinder used and kept to within 1 4 inch 0 6350cm of the wheel.
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From other osha.
Adjustment of guard shall be such that pieces of an accidentally broken wheel will be deflected away from the operator.
Side guards should cover the spindle nut flange and wheel.
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Guarding is extremely important for safe grinder operation.
In all other industries wood guards are not allowed per 29 cfr 1910 219 o 2.
Missing or improperly adjusted guards are common and frequent safety violations.
A hazard exists because of the turning shaft and nut end.