Hello All!

Looking to replace the drive belts on my W126 300SD.
The water pump/alternator belts are the ones needing to be replaced, esp. 1 of them.
It seems apparent, I have to remove the A/C & P/S belts before I can get to the 2 belts mentioned above.
I can't seem to locate the tensioners for the A/C compressor.
Also, any advice on how to loosen the tension on P/S and alternator would be appreciated. I rather be turning the right nuts, then finding out later, what I did wrong.

Thank you, fellas!