MMF-5.1 Azimuth Adjustment - Need Help

I've noticed that my azimuth is slightly off and is causing my soundstage to be shifted to the right. I read the instructions on how to loosen the set screw, but for some reason I can't seem to find it. The instructions say to remove the anti skating weight and anti skating rod, which I did, and that upon doing so, you will see a small set screw on top of the tone arm where the anti skating rod used to be. I do not see this. Instead, I see a small screw on the RIGHT side of the tone arm, and after loosening that screw all the way, the tone arm will still not rotate. What am I doing wrong here?

Thanks