I just dealt with this! Maiden voyage, pouring rain. Looking to slide the bracket down the TT, but its mounted. The rain was coming off the awning in a torrent and flowing thru our mat! Found the answer in my jayco library. Awning had its own manual. Nothing in my owners manual. DW and I were flipping through that library while the kids gave updates on the flood. Works easy. Tighten door side black knob, loosen other side black knob, pull down on this side and then tighten knob. BOOM! Lots of info info in there.