Candy M Bedias , TX February 24, 2017 Appliance: Maytag Electric Dryer MEDB400VQ0 Maytag Dryer Medb400vq0: My idler pulley was broke. How to replace Dryer Drive Belt. I took my dryer apart and replaced the pulley and the belt. It was a simple task. The parts were a perfect fit. Do-It-Yourself Rating: Repair Time Estimate: 15-30 minutes