A kind soul posted this link a few days ago. It has the manual on it. when you get in, look for "3 man basketball mechanics", and click on that. It's in Word or pdf.
http://lhsaa.org/officialsfiles/officialsmanuals.htm
Note that this is last year's manual. For the updates, go to this link:
http://www.nfhs.org/Sports/basketbal...l_changes.html
This is the high school mechanics.