I have lots of meat still on the shoe, and have tried adjusting at the wheel and at the lever, and both, to no effect.
Here's a pic of what I have: now, the manual says to Adjust nut A and adjust nut B at the wheel, but as you can see, I have no 'Nut A'...or B for that matter. This is the way the bike came to me...I have a feeling I'm missing something, but I don't know what...

Any ideas/ what should I have on this assembly (or not) and how do I adjust it? Everything I've tried the lever goes right down to the handlebar.
Also, does that little silver shaft in the middle under the springs rotate/adjust?