Jay S Villa Ridge , MO January 04, 2016 Appliance: Maytag Electric Dryer MDET236AYW Maytag Dryer Mdet236ayw: Squealing noise when first turned on duration varied. How to replace Dryer Belt Tension Pulley Assembly. Purchased belt, figured it was getting loose and stretched out, never been changed and dryer is ???? years old. Upon disassembly to replace belt, I inspected all pulleys, rollers, guides etc. Found the belt tensioner pulley was difficult to spin and had a groove worn in it from the belt. Also found the front drum guides were fairly well worn and the felt pads were missing. Placed a second order for the pads, guides, and tensioner. Replaced all parts, installed new belt, and reassembled. Do-It-Yourself Rating: Repair Time Estimate: 30-60 minutes