After paying someone to "fix" my dryer's heating element, I ended up with a dryer with a stripped pulley shaft and nut on the motor. Rather than paying another ridiculous amount to "fix" the dryer again, I decided to try myself. I am not an expert, but did manage to replace the motor on my dryer.
Unfortunately, although PartSelect provides a video for just about every part they sell, they do not have a video for replacing the motor. However, they do provide a video for replacing the Dryer Idle Level which is attached to the motor, and I suggest watching this video to help remove the motor for replacement.
https://youtu.be/8AtOYoABVp0
Some tips while disassembling the dryer that will help with reassembly: Bring your cell phone. I watched the video in full, then watched step by step as I took the dryer apart. Take pictures of where wires are connected so you can reconnect them properly. A majority of the bolts you remove will use the same size socket, but are different. Be sure to separate them so you don't get them mixed up. I used a magnetic bowl and clumped them together. Have a vacuum handy for all the dust bunnies that have accumulated. Finally, while they may not be broken now, I ordered a new belt, drum wheels, and Idler, and replaced them while I had the dryer apart. Might as well replace these items that eventually fail while you are there since they are not that expensive. I ordered a kit that contained all 3 from another vendor, but you can find them here with videos for instillation.
Once you have the motor removed as shown in the video linked above, you will have to remove the metal shield covering the fan. Then using a socket wrench on the attachment of the fan itself, and another wrench to hold the pulley nut if it is attached, or vice grips on the shaft if it is stripped like mine, loosen the fan from the motor. It is a reverse screw pattern, so be sure to loosen in the direction that is indicated on the fan itself so not to break the fan which is plastic. Once the fan is removed, you will see two clamps holding the motor to the base, Use a flat head screw driver to push down on one side of the clamp, then leverage it off. After removing both clamps, squeeze the edges of the wiring harness and remove it. With a slight turn to of the motor it will come free of the base. Replace it with the new one insuring it is label side up, then reassemble in reverse. Wiring harness, clamps, fan, ect.
The video link above will give instructions for reassembling the dryer and attaching the belt. Good luck.
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