If I'm not mistaken wdchyd, I believe there's a cylinder for the boom at the pedestal and another at the boom extension. I think the bucket is controlled by the parallel links. You beat me to the posting, Dr. Dave, as I did find out today that it does hold position on it's way through to maximum travel. Apparently, once it reaches max travel and the relief squeals, that's when it starts floating back down. Even holding the lift controls in will not over ride the float down. Not a fast movement, but almost as fast as if it were controlled. No water in the fluid and it does appear clean. Amount may be an issue. Quite possible that air is in the line. Will discuss these possibilities with him tomorrow. By the way, the fellow I'm helping on this does not have internet access, just to explain the go-between....
Thanks for the help.