Kaz 4100 1 Gallon Humidifier "plastic wheel humidifiers" Questions

...I want to clean the white gritty minerals from the fly wheel inside the humidifier. I took the three screws out but the plastic wheel will not move. I'm afraid to force it...might crack or

how do i clean How do I clean white gritty minerals from under plastic wheel. I took out the three screws, but the wheel will not move. I'm afraid to force it...might crack or break.

...wheel, and it makes a terrible clicking noise. The little gears on one side of the plastic dual gear assembly do not move at all. On the other side, a larger spike and smaller spike of plastic that ...