NJP Tamma ll mount

I have a NJP Tamma mount. any one have a problem with altitude adjustment of this mount. When i try to adjust the mount for Polor alignment by loosening the locknut and turning the adjusting screw with the allen wrench located on the back of the mount nothing happens. I understand that you should raise or lower the mount with the allen wrench for polor alignment. am i missing something. What mechincal problem could happen. any one care to comment.: Seymour

You have to loosen both the lock nut surrounding the adjustment screw as well as the locking set screw on the right side of the mount when facing the ep of the polar scope.

clear skies,
Kevin