- DO check all wheels for cracks or other damage before mounting
- DO make sure the machine speed does not exceed the maximum operating speed marked on the wheel
- DO use an ANSI B7.1 wheel guard. Position it so it protects the operator.
- DO be sure wheel hole or threads fit machine arbor properly and that the flanges are clean, flat, undamaged, and the proper type.
- DO run wheel in a protected area for one minute before grinding.
- DO wear ANSI Z87+ safety glasses and additional eye and face protection, if required.
- DO employ dust controls and/or protective measures appropriate to the material being ground.
- DO comply with OSHA regulations 29 CFR 1926.1153 when working on materials containing crystalline silica such as concrete, mortar and stone.
- DO hold grinder firmly with two hands.
- DO cut in a straight line only when using cutting wheels.
- DO support work-piece firmly.
- DO read the machine manual, operating instructions and warnings.
- DO read SDS for the wheel and the work-piece material.
- DON’T allow untrained people to handle, store, mount or use wheels.
- DON’T use grinding or cutting wheels on pistol grip air sanders
- DON’T use wheels which have been dropped or damaged.
- DON’T use a wheel on grinders rotating at speeds higher than the MAX RPM marked on the wheel or on grinders that do not show a MAX RPM speed.
- DON’T use excessive pressure when mounting a wheel. Tighten enough only to hold wheel firmly.
- DON’T alter a wheel hole or force it on a spindle.
- DON’T mount more than one wheel on an arbor.
- DON’T use any Type 1/41 or 27/42 cutting wheel for grinding. DO not apply any side pressure on a cutting wheel. Use for CUTTING ONLY.
- DON’T use a cutting wheel to cut curves. Cut in straight lines only.
- DON’T twist, bend or jam any wheel.
- DON’T force or bump wheel so that the tool motor slows or stalls.
- DON’T remove or modify any guard. ALWAYS use a proper guard.
- DON’T use wheels in the presence of combustible materials.
- DON’T use wheels near bystanders if they are not wearing protective equipment.
- DON’T use wheels for applications other than for which they were designed. Refer to ANSI B7.1 and wheel manufacturer.
These rules are designed as a guide for the individual user of grinding wheels whether he be in the employ of a large corporation or in the confines of his home workshop. It is based on the premise that grinding is a safe operation when a few basic rules are followed. These rules are based on material contained in the American National Standards Institute Safety Requirements B7.1 — “Use, Care & Protection of Abrasive Wheels.” Follow them.