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.
The tech thought that the riser block may have been machined badly,
which I didn't believe as the saw had the problem before I put the riser
block in. However, he offered to send me a new one, which I accepted.
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.