The tumbler and motor belt in your dryer allows the drum to spin during the drying cycle. At 100 inches in length, this dryer drum belt is 3/8 of an inch wide and has five ridges. The belt is black in...
first, I unplug the power supply of the dryer then I removed the two screws at the bottom of the dryer then pulled out the front part of the dryer,unplugged the blue & yellow wire for the on/off switch for the door,at the back of the dryer I unscrew the pannel for the belt,disconect the belt,and I unscrew the four screws on both side of the front pannel to remove the front cover of the drum. Once I removed the front cover of the drum I can now remove the drum itself to access the drum support roller. I unscrew the rollers then replace it with the new once. It was an easy job. Thank you.
Removed the front cover (screws on bottom 0f face)...removed blower cover....spring pliers to remove and install blower fan. the rest of the time was spent cleaning the inside of the shell as well as the vent. Reassembled and dryer runs better than it has for many years.
Unplugged dryer. Front came off easily. Removed front of blower. Wheel came off fairly easily - could then see that shaft of motor was circular with flattened side but inside of old wheel was rounded. New wheel popped right on. Took tumbler off so I could clean lint out more easily and get a good view of how the belt threaded through. Put the tumbler back on and reached back with both hands to thread it. Took a half dozen tries until I was sure it was seated correctly and not twisted. Put front... of dryer back on. So far (a week or so) the rumble is gone. Seems blower wheel was the cause of the rumble. Belt didn't seem worn but replaced anyhow.