OK, I have the Andersen WDH recommended by
Casita. Here's the installation video:
the problem is this: I installed the ball and later the silver plate. However, the silver plate has turned to the left so that the chains can't be connected to the back. Obviously I have to take everything off to start again, but the plate will not turn back to center-it seems hopelessly stuck. It wouldn't move with a rubber mallet.
I hope I explained this clearly and someone has a solution.
Thanks in advance.