How to remove the 106 handles?

friends, where the handle of this centrifuge swings, it makes noise, I pressed the paper, I knew there is a gasket in it, it helps me. I unscrewed the screw.

:) you pull a little downwards, the gear is the engagement that circular part so it can be equally from the right to the left with the help of a screwdriver, the muscle will come down.

Be careful when you can't find your piece