The power window on my 86 Fleetwood stopped working. I will come down about 4 inches, then stop and the mechanism clatters. I can raise the window again to close, but when it comes to the top of the travel it starts clattering again. I want to remove the door panel to get a look at the problem. Is there a schematic or drawing that shows how to remove the door panel? I don't want to damage anything.

Thanks,
Klaus Cook
Houston, TX