Since the strap you'd normally use to pull the awning down is in accessible, you're going to need two strongish people (as a neighbor to help if necessary), one at each end of the awning, probably on a stool or ladder ... Make sure the securing hook is unhooked and grab the side bars at the top near the roller and pull the awning down evenly from both ends. You've got a long awning on your rig, so it's gong to take a good steady tug ... watch your balance and be careful not to get your fingers get pinched in the arms. As you bring the awning down the roller will unroll as usual and eventually the strap will be accessible... Of course, be sure not to let the awning go before you secure the side arm hooks or it will roll up and slam shut. Good luck!
TB & Greg and Abbey Schnauzer
AirForums #21900 . Membership Chair, 4CUnit #3954
Travel Log: AZBambi...On the Road Again