No I'm not selling anything. I came across these instructions and followed them to adjust (fix is more like it) my saw. The raising wheel on my Jet saw always had freeplay and bound since the day I unpacked it. I just thought that was they way they were designed.
Truthfully I didn't follow all of these instructions. I just replaced the fiber (paper thin) washer with a standard washer and it fixed the freeplay and the binding.
You can see the worm gear by removing the table insert and looking inside while operating the raising wheel, power disconnected of course. The worm gear on my saw moved back and forth almost 3/8" at some points before 'engaging'. Putting in a standard washer was just what mine needed to remain engaged constantly, it really does seem like a new saw.