Serpentine belt squeaking?

how do I adjust. I just loosened tension on pulley to change water pump now I can't get it to stop squeaking. The long bolt that adjusts tensioner pulley turns real easy. I can turn it with my fingers. It seemed to be much harder to loosen when I took everything apart to replace water pump. Am I missing something that I didn't re-assemble correctly. This in on a 1997 Jeep 4.0.Serpentine belt squeaking?
loosen the bolt on the tensioner pulley, tighten the jack screw to where the belt barely deflects when you push on it, and tighten the bolt

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