I have posted twice about the problems we've been having with the brakes on our Coachmen Catalina:
Lumpy/grabby brakes update
We bought the TT last August and only went on a few camping trips near home until this past July and have been able to manage with the brakes. In July when we drove about 1,800 miles around Washington & Oregon and had a LOT of trouble with the brakes. So much so, that during our trip we stopped at a repair shop in Oregon and upgraded to a Prodigy P3 BC, which did not help.
I just picked up our trailer from our dealer. It turns out that the problem was from Cosmoline grease that was not removed by the dealer during the initial prep for the customer. No out of round drums or mechanical issues. Just the Cosmoline. Now the braking is just fine! Prior to this we have spent near $1,000 installing the Prodigy BC and rebuilding the front brakes on our truck.
Basically the dealer was negligent in not properly removing all of the Cosmoline, if any at all. Cosmoline is a brownish/waxy rust preventitive that is typically sprayed on autmotive and other parts to protect them before they are put into service (crankshaft, eg.). It's greasy and sticky.
The problem we may have is that the service manager is not sure if they will cover the work under our warranty. His attitude was "well you should have brought it in sooner." I have to go back to the dealer to get a couple of windows and the bathroom door replaced (warranty) so I am not sure how the brake issue is going to shake out in the end. I would be so choked that I would even consider going to court. Dealer even wants to charge us $150 just for taking the brakes apart to check them out.
So there it is. If your brakes are acting up, it might not be a mechanical problem, a faulty or cheap brake controller or something on your TV. Pop your drums off and look for Cosmoline.....