Recently, I have experienced a bit of a problem with my corner Lazy
Susan cabinet. It seems to stick (the lower plastic tray rubbing
against the lower opening of the cabinet) when rotating.

I believe the trays themselves are still level. I put a small bubble
level in various places on the lower shelf and rotated the entire
assembly, finding that the same spot would read first level and then
out of level.

The gap between the lower tray and the bottom of the cabinet opening
gets bigger and smaller as the entire assembly rotates.

I have also noticed that, when closed, the left-side cabinet door has a
much smaller gap between the top of the door and the top of the cabinet
opening than the right-side cabinet door does.

I suspect the entire assembly has shifted (and is now crooked) and I'd
like to fix it.

I'm having difficulty finding resources on the web that will assist me
in either adjusting or disassembling the unit.

Can anyone point me in the right direction?

Thanks,
-Chuck