Okay, here's the deal; my fan is beginning to shake back and forth, and it's getting worse. I tried tightening the bolts circled in red with no change. How do I get into the place where it is connected to the mount to tighten it. The piece circled in yellow is what is wobbling back and forth.
Okay, from another view. I need to tighten it where the arrows are pointing:

Okay, from another view. I need to tighten it where the arrows are pointing:
