Actually, it sounds as if you might be doing it in reverse sequence. Instead of trying to remove the adjusting bolt, crank it all the way in to release the tension on the belt. Then remove the bracket and alternator as a unit, held by the two large bolts at the block. Once removed, separate the bracket from the alternator. No bending required.

I also fought it the first time. Once I figured out that removing the bracket and alternator as a unit, it really simplified this task.

__________________
Sam

84 300SD 350K+ miles ( Blue Belle )