U.S. ELECTRICAL
TOOL INC.
 SAFETY GUIDE FOR
 GRINDING WHEEL USERS

 
Grinding is a safe operation if the few basic rules listed below are followed.  These rules are based on material contained in the ANSI B7.1 Safety Requirements for Use, Care and Protection of Abrasive Wheels.  For your safety, we suggest you benefit from the experience of others and carefully follow these rules.


Post a copy of this near your grinding machine.

 
WARNING
IMPROPER USE MAY CAUSE BREAKAGE AND SERIOUS INJURY

 
DO DON'T
  1. DO always HANDLE and STORE wheels in a CAREFUL manner.
  2. DO VISUALLY INSPECT all wheels before mounting for possible damage.
  3. DO CHECK MACHINE SPEED against the established maximum safe operating speed marked on the wheel.
  4. DO CHECK MOUNTING FLANGES for equal and correct diameter.  Should be at least 1/3 diameter of the wheel and relieved around hole.
  5. DO USE MOUNTING BLOTTERS supplied with wheels.
  6. DO be sure WORK REST is properly adjusted.  Center of the wheel or above; no more than 1/8" away from the wheel.
  7. DO always USE A SAFETY GUARD covering at least one half of the grinding wheel.
  8. DO allow NEWLY MOUNTED WHEELS to run at operating speed, with guard in place, for at least one minute before grinding.
  9. DO always WEAR SAFETY GLASSES or some type of eye protection when grinding.
  10. DO TURN OFF COOLANT before stopping wheel to avoid creating an out-of-balance condition.
  1. DON'T use a cracked wheel or one that HAS BEEN DROPPED or has become damaged.
  2. DON'T FORCE a wheel onto the machine OR ALTER the size of the mounting hole - if the wheel won't fit the machine, get one that will.
  3. DON'T ever EXCEED MAXIMUM OPERATING SPEED established for the wheel.
  4. DON'T use mounting flanges on which the bearing surfaces are NOT CLEAN, FLAT AND FREE OF BURRS.
  5. DON'T TIGHTEN the mounting nut EXCESSIVELY.
  6. DON'T grind on the SIDE OF THE WHEEL, unless wheel is specifically designed for that purpose.  See Safety Code B7.1 for exception.
  7. DON'T start the machine until the WHEEL GUARD is in PLACE.
  8. DON'T JAM work into the wheel.
  9. DON'T STAND DIRECTLY IN FRONT of a grinding wheel whenever a grinder is started.
  10. DON'T FORCE GRINDING so that motor slows noticeably or work gets hot.
  11. DON'T grind material for which the WHEEL IS NOT DESIGNED.

For a copy of this in PDF format, click here.
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