Quoted from WizardsCastle:
It tells you to go into the vertical motor test, press start to open the jaw, then it jumps right into physically moving the mech and tightening nuts.
The diagram says not to remove nuts, so I'm guessing you loosen the 4 nuts, and after you get the jaw open, you are just adjusting the height of it by hand and then tightening it back up?
Is this done behind the backboard, and can I be done by just pulling the pf out onto the service rails?
Yes, and yes. This is how I did it to the tune of about a 90% successful grab rate.