Help! Belt tracking on Jet JSG‑96 Benchtop Belt/Disc Sander
I recently bought a used Jet JSG‑96 Benchtop Belt/Disc Sander (pn 708595). I love the ergonomics and performance, except for one thing: I am having trouble with belt tracking adjustment.
I think I am following the user manual instructions properly. Nevertheless, although I can "move" the belt left or right using the adjusting wheel, I invariably go "too far" in one direction (left or right).
As soon as I see the belt starting to move too far, I try to turn the adjusting wheel slightly in the opposite direction, but there seems to be a "dead area" in the wheel movement, and I invariably end up with the belt running very close to one edge or the other, and for all I know, the belt might be running against something I just can't see from outside the machine, on either side.
The user manual cautions that the belt needs to eb run in the correct "direction" that is supposedly indicated on the inside surface of the belt, but there is no arrow or other directional guidance on the brand new belts I bought.
The belt works fantastically well - using a 320 grit belt, I can make beautiful 3/8" radius corner chamfers on a test piece of pine, in just a couple of seconds.
But, I am worried that since I cannot seem to get the belt "centered", it might be rubbing against something, and causing wear to that something, by being at either the left or right edge of the drive system.
Is there some special trick to getting this adjustment right? Is the "dead zone" (a sort of "slack freeplay area") in the adjustment wheel normal?
I need some help from someone experienced with this Jet model . . .