Yes it does.it moves freely?
I tried the deck at all positions. Something must be way out of whack on it. I'm baffled.Looking at the pictures, do you have the deck lowered? Maybe with the deck lifted, you can stretch it on. Pull all the slack, hook the belt onto that last pulley, and turn the pulley to stretch it on. I'm talking about the shorter belt, by the way.
Yes I have. The belt that Husqvarna was the correct part number is too short to even get close to sliding over the pulley even with the tension spring removed.I think that with all those pulleys, it's accumulating a little slack at each one and adding up to too much. Have you tried using the blade to turn the pulley and pull tension? Pull the plug wire first.