When to Replace a Chainsaw Sharpener Grinding Wheel
A chainsaw sharpener grinding wheel should be replaced when it is cracked, chipped, wobbling, vibrating abnormally, or too worn to hold the profile required by the grinder manual. A wheel that is merely loaded with metal or slightly out of shape may only need dressing. The distinction matters: dressing exposes fresh abrasive and restores the working edge, but it cannot repair structural damage or recover material that is already gone.