One of my guys crashed a tool into the third way cover down on the Z axis and caused a big dent. I took out the three screws that secure the top cover to the neck but the cover still won't come down... what am I missing here? I ran a thin piece of shim stock around the seam (thinking it was glued in with sealant) and there are two spots on the sides that seem to extend up into the neck. How do I get this off without forcing it?![]()