William D New Britain , CT September 18, 2015 Appliance: Magic Chef Refrigerator RB193AM Magic Chef Refrigerator Rb193am: Broken retainer clip. How to replace Shelf Retainer. Just ordered and slid into place and re attached the bar then crimped the metal over the new clips with pliers to lock it in place. Done 60 second job. Do-It-Yourself Rating: Repair Time Estimate: Less than 15 minutes