When reversing a trailer or caravan with auto reverse brakes let the brakes go off before reversing. In other words, when you stop going forward move slightly forward after you have stopped and this allows the brakes to come off completely. then reverse slowly and the brakes will not come on,i.e. the auto reverse will work as it is designed to do.When you think about it, the brakes are on when you stop and will remain on without that forward movement to allow them to revert to the off position. Hope this solves your problem and saves on brake linings and clutch plates.