I couldn't find any "how to" on reinstalling the belt tensioner and now I've got belt squealing.

Just replaced my alternator and this is the only part that seems to be an issue.
When I reinstalled the tensioner, I tightened the center bolt and then hand tightened the upper bolts...that allow for adjustment. Prior to tightening all the way, I pushed the tensioner down to apply pressure on the belts.

Is that where I went wrong?

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2002 4.4 Sport
134k miles and counting