2000 Lexus Gs400 Tensioner Assembly Replacement

[lexogs400]

Hi, i was wondering if anybody has step-by-step or possible screen shots of how to change the belt tensioner assembly for a 2000 lexus gs400. I already have the part and now wanting to change it myself. I see that there are 4 bolts to changing it, but i see that the alternator is attached to one of them. Any tips or screen shots will be helpful. Thanks