<b>Photo 2: Inspect the rollers for wear and tear</b></br> Nylon rollers tend to crack or chip when they deteriorate, so defects should be easy to spot. On steel rollers, the bearings wear and the wheel begins to tilt like the one shown. Buy replacement rollers at a hardware store and install them by removing and reinstalling the roller bracket. <strong>Caution:</strong> Do not remove the bottom roller bracket. The cable attached to it is under extreme tension.
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