Do-It-Yourself Story

Took apart the unit following the helpful videos. It is pretty straightforward. Replaced all parts that could be the cause as the replacements were relatively inexpensive (rollers, belt, felt (completely missing when I opened it up) and glide). Hardest part was the snap rings. I bought a pair of snap ring pliers but the holes were too small. Had to resort to using two corkscrews - not ideal but got it to work. I did notice the glide bracket has weakened and bends - will monitor but may need to replace. Currently the unit is working very well.