Originally Posted by 92landyacht
I have a long curb side manual awning with 3 vertical arms on my 92LY. I've seen and used awnings on other RV's with just the side arms. This one has a third arm near center that looks like a brace of some type. I know it's a Dometic A&E but I don't have a manual or model number. Can anyone help me with instructions on how to open and close this unit? What's the center arm/brace for? Any pics on usage or a manual would help a ton. PO did not have the hook to pull the lock so I'll have to fab one up.
That third arm is called a "center support".
It adds addition strength to the awning setup, so that gusts of winds don't damaged the awning, or the roller tube.