changing alternator belt what do I have to do

Quote from http://www.justanswer.com/volvo/1tkgd-ch...

Mike, volvo Tech

to change the alternator belt at the bottom of the alternator at the front is a 13mm nut, loosen it some, on the side at left side of the alternator at the bottom there is a 10mm bolt loosen it and the belt will slacken. the a/c compressor has a a 13mm nut on the front top and a 13mm nut on the top back brackets, once they are loosened loosen the 10mm bolt on the side till you can get the belt off then remove the alternator belt.

reinstall the belts tighten the 10mm bolt till the alternator belt is tight, then the 13mm nut. tighten the 10mm bolt on the a/c compressor till the belt is tight then tighten the rear 13mm nut and then the front 13mm nut