I bought a new brush hog for my BX2660. My wife and I had trouble attaching the PTO. I finally went on easily, but we have no idea what we did differently to allow it to slip on. Now that I'm done, I'm trying to remove it. Because of the plastic cover on the shaft, I can barely get my hand in to pull on the connection. And I can't get it to budge. The only video I can find is on a large tractor, not a close-up of what he's doing, and it appears he can grab the shaft with one hand while pulling the connection back with the other hand. I can't grab the shaft because of the plastic cover. What am I doing wrong? Thanks.