Ronnie N Sylvania , AL May 17, 2015 Appliance: Model RM278PXL-0 Stirrer belt micro wave Removed oven from cabinet, removed screws holding top panel of micro wave sixteen screws. This allowed access to the belt, install the new belt on the drive pulley and the stirrer. Replaced the top panel on oven, put oven back in the cabinet, finished works great. Read More... Do-It-Yourself Rating: Repair Time Estimate: 15-30 minutes Tools: Screwdrivers