Jeffrey L Zionsville , PA November 02, 2020 Appliance: Samsung Dryer DV42H5000EW/A3-0000 Samsung Dryer Dv42h5000ew/A3-0000 / : Drum stopped spinning. Idler pulley came apart. How to replace Dryer Idler Tension Spring. From the back of the machine. I removed the old pulley and arm and put the new one in. Perfect! Some online videos have you disassembling from the front, but I could do it through the back with less disassembly. Do-It-Yourself Rating: Repair Time Estimate: 15-30 minutes