Some pics here: http://www.peachparts.com/shopforum/showthread.php?t=281663&highlight=compressor post #4 you can see the three Charlie is talking about. On the left side of the pic in that post you can see the eyelet part of the banjo bolt that adjusts the tension.

Check for interference with your oil cooler line. I found that they were close enough to limit swing travel of the compressor.