In anticipation of the delivery of our new Jay Flight 24FBS, we had to get a new weight distribution hitch. The one we used with our old Starcraft hybrid was great for that trailer, but since the 24FBS weighs more, I though we should have a little more margin of safety. I managed to find a good deal on a Curt 800/8000 hitch, and I'm setting it up as much as I can before we take delivery, and learn how to use the hitch, since it's slightly different than the Reese hitch I had before. I'll do the final adjustments when we take possession of the new trailer.
I do have a question, though, that's not covered in the manual, and Google hasn't helped out much, either. In the photo below, what is the bottom 5/8" x 1-1/2" bolt for? This is the one on the bottom of the head assembly, in the middle of the photo. When I leave the bolt loose, the head has a lot of backward tilt with seven washers on the adjustment rod, but when I tighten the bolt all the way down, it pushes the head out at the bottom and almost completely eliminates the backward tilt.
I don't have the main bolts torqued down yet, but I'm guessing that this would help the problem. But my main question is what is this bolt for? Is it for adjustment? Or to hold something in place?
Thanks.