Riverdog, if you are mechanically inclined and have someone that has done at least one before to help you, it can be done. You will need to be very careful as there is a high risk of personal injury and property damage associated with this job. THere are several ways that the fabric can be r & r. the awning needs to be fully out. The idea is that you have to unload the back end spring assmy while the front can be held in place by the ratchet lock assmy. To unload the spring, you will need to clamp on a good pair of vise grip type pliars and then remove the bolt holding the endcap to the are and pull it out; BE CAREFULL as much tension is on this spring. You will need someone to hold the tube and another to hold the harware arm. Unwund the springfully counting the number of turns it takes as you will later put at least the same number of turns back in; if the awning did not want to retract without help you may want to add acouple of turns. If you add turns to one end you should add the same number of turns to the other end.
Take the arm off the wall that will allow you to slide the fabric bead out of the awning rail mounted to the wall. If you can slide the fabric off & on at the front end this will be the preferred side. If not then you will need to remove the front ratchet end from the arm hardware. Remove screws that are in the awning rail, rain guter if needed and slide the fabric out of the groove in rail. Clean rail, straighten and even enlarge the opening a little to aid in reinstalling new fabric.
Mark the end cap and tube for realignment as well as the grooves used for the fabric beads.
Drill out the rivets from the rear end spring assmy. on the the tube. Slide the spring assmy out and remove the fabric from the tube.
Reverse the process to install fabric and awning back into place.
As you can see this is not difficult but one must know what they are doing and be careful. If you do not feel compfrtable at doing this then I would highly recommend you pay a qualified team to do it for you. The spring assmy can unwind at tremendous speed and if the pliars are attached to the end cap it becomes something like a propellar and be very dangerous. Be careful and let us know of your decision and progress.
Mike, RVIA & RVSA Certified Master RV Technician
Amy, Dr. Assistant - Roxie & Mei Ling, four legs each
2000 Gulf Stream Scenic Cruiser 450 hp & 1330# torque
06 Saturn Vue, 06 Chevy Z71 4x4 & 2014 Corvette Z51 M7