Key 5140032-50

It is necessary to position the shaft at its lowest position so that the key engages with the bevel gear. I used the lock nut that holds the bevel gear in place to rotate the shaft, otherwise itGÇÖs difficult to do so without damaging the threads that move the saw motor up and down.
There is a plastic spacer that keeps the bevel ge ... Read more ar in place. Put this sleeve on then put the key in the slot on the shaft and press it in with mild pressure using adjustable pliers. Once the key is in place put the gear, flat washer and then the spring washer before finally the lock nut. At this point you can hold the circular handle that raises the blade to keep the shaft with bevel gear from rotating. while using a socket to tighten the nut. It takes very little force to tighten it sufficiently. Check the rotation on the handle to verify you havenGÇÖt over tightened the nut, it should spin freely. In my case there were only two threads exposed at the bottom of the nut.
At this point I discovered that the screw on top of the vertical shaft was loose and GÇÿpoppedGÇÖ off when I rotated the handle to raise the blade.
Access from the top of the table through the slot the blade sits would require removing the canvas dust shroud that is attached to the bottom of the table.
I chose to sacrifice a Phillips screw driver to make a short 90 degree screw driver using a vice and a 2 lb sledge. I had to remove the bevel gear and start over using the same sequences above. But first I installed the screw on top of the shaft. I put a thread locking glue on the screw threads and I used the bent screw driver to hold the screw in place while rotating the handle until the screw was tight as possible. At this point I repeated the bevel gear install and the saw blade assembly moved up and down without any issues.