hi guys, My kitchener #12 showed up today and I am excited. I put it together and I am not sure if this is normal. the grinding plate looks kinda high and when i firmly screw down the hand screw it seems to put a fair amount of resistance on the motor. the manual that came with it has a metal washer and a POM washer on the end of the feed screw. The online manual doesn't show either. am i tightening it too much? is something missing? does this look like the grinding plate it too high? thanks!!