I fixed the main gear that is attached to a pin and the main pulley. This gear cracked and I tried the baking soda and super glue, but it never realigned appropriately. I bought a bag of assorted plastic gear set on Amazon and found one that matched! I had to take a tiny pair of scissors to scrape and make hole bigger to fit on pin. I finally got it! Everything works again! I’ve had this thing since 1999 and I’m not worried about the plastic gear cause the one that’s in there is plastic. I hope this comment helps someone! Cost? 7.99