I ordered a travel lock to put near top to keep rail against RV. I had RV in pole barn and could only open part way. I had to take rail off RV and set on floor in Pole Barn. I raised rail to put travel lock out near top. The travel lock was installed and then I lifted leg back up and put in bracket on RV side. I then switched switch to close and slowly closed awning. Guess what? The front awning rail locked in place and travel locks were both in unlocked position. I don't understand this but it now locks at top when closed. The Cam Lock is now working!