AC Belt replacement for 1988 VW Fox

How do I change the AC belt on my 1988 VW Fox? I did find a diagram on line for a similar VW, but I cannot find it. The .pdf I found did not tell how to replace the belt, but it showed how the pulley was actually the tensioner.

You really need to get a good repair manual like Haynes to help you out. This vehicle is kind of rare since they were only imported for a short time. If you keep this vehicle you will need a repair manual again in the near future.

I got the same reply from the guys on Bentley. I thought I would try here hoping if someone knows how to do this, they would let me know.

Anyone know what vehicle is similar to mine far as parts and repair?