Mouse Mad Catz R. A. T. PRO'S

Guys, the mouse wheel squeaks when you scroll like an old, Soviet, rusty door.
As you know, must be lubricated.
OK, no problem. But only 1 side of the hexagon and all. But he holds only a side of the SECOND panel. Like this shit to understand?
Specifically, this model is not found Hyde. Tell me who can.