I have started using my new MB-102 to sharpen chisels on the side and honing and it seems to be sticking when I turn the fine adjustment wheel. The wheel gets harder to turn after a few rotations and then stops and I can't raise the USB. If I lift the usb up and out of the MB-102 then reinsert it, it seems to work for a few turns and then seems to become difficult to turn the adjustment wheel again.
Does any one have any suggestions?
?