As I wrote earlier, my new 14" JET bandsaw arrived with the wheels about
1/4" out of plane, though the saw cut well. However, the blade was not square to the table in the direction of cut. I created a web page to show the JET tech what was going on.See:
Sure enough, there was no improvement, but I took the opportunity of having 2 riser blocks to experiment on one.
As mentioned here, I though of cutting off the pins to allow me to adjust the upper part of the saw, but somebody on this group (sorry, I don't remember who) pointed out that it could be dangerous if the bolt loosened for any reason as there would be nothing to stop the upper part of the saw from twisting around the bolt.
So instead, I drilled new locater holes in the riser block 1/4" offset. after installing it so the upper part is now 1/4" further back than originally, the wheels are ever so close to being coplaner, the blade is square, and I just re-sawed some 5" southern yellow pine into 1/8" veneers, plus or minus 1/16" (thicknesses from 1/16 - 3/16") which I considered very good indeed. The surface is also much cleaner than I had before, though that could be due to better guide setup.
I don't have any idea why the saw was designed this way, but I am very happy with the solution. I can recommend this saw to others, but with the caveat that you may want to either perform the same modification, or perhaps shim the bottom wheel out. BTW - tech okeyed shimming, and promised it wouldn't affect the warranty. I was concerned about the wheel riding 1/4" further out on the shaft, with added wear. Anyway, I am now happy with what I have.
Thank you for everyone's suggestions.
Harvey
Harvey