Does anyonje know of a detailed guide on changing teh fan belt?

? My old man knows how to change one but he would like a guide that we could print off incase we run into any little snags along the way. Id also like one to try and educate myself so i dont sound so stupid and annoy him with so many questions.
Anyways, any guides on here? ive googled some but nothing detailed. My haynes manual wont be arriving until friday, and we are doing the job tomorrow along with sprak plugs (found a diy) and a new dipstick guide tube.
cheers