Sandra H North Port , FL December 11, 2020 Appliance: Samsung Refrigerator RF4287HARS/XAA-0000 Samsung Refrigerator Rf4287hars/Xaa-0000 / : Rollers on bottom of refrigerator flatten out. How to replace Refrigerator Front Caster Wheel Axle. Replaced all 4 rollers. Do-It-Yourself Rating: Repair Time Estimate: 2+ hours