What should be done when the grinding stone on a pedestal grinder gets dull?

What should be done when the grinding stone on a pedestal grinder gets dull?

• A. Dress the stone
• B. Replace the wheel
• C. Increase the grinder speed
• D. Apply lubricant to the wheel

Answer: (A)

When a pedestal grinder wheel gets dull, the way to restore its cutting action is to dress the wheel. Dressing removes the glazed, loaded surface and exposes fresh abrasive grains, reopening the wheel’s pores so it bites into material again. This keeps grinding efficient, reduces heat buildup from rubbing, and helps prevent further glazing.

If dressing doesn’t bring back performance, check for damage or excessive wear and replace the wheel if needed. Do not speed up the grinder or add lubricant to the wheel, as these can create unsafe conditions or contaminate the grinding action.