How do you change the belt on a 2006 artic cat quad?

I have a friend that has a 2006 artic cat 400 tbx. He was wondering how to change the belt on it. Does it take a special tool? Is there someway of getting a diagram of it with out buying the service manual for it? Thanks for the help. BobHow do you change the belt on a 2006 artic cat quad?I suggest Haynes on line.