Replace O-ring

Over time, the O-ring will degrade and slipping can become a problem. These O-rings are easy to replace and a 3-pack replacement (#17575) can be purchased from Optec. To install the O-ring, wet with a small amount of mineral spirits to provide some lubrication and mount over the wheel. It sometimes helps to have an extra pair of hands. Use your finger to even out any high spots and make sure the O-ring is completely in the groove. Wipe the O-ring with a clean paper towel and allow the mineral spirits to dry before using.