This is description of this part:
Condenser focusing knob for the Olympus CX31 / Olympus CX41 microscopes.
This is a complete module consisting of the following parts:
- knob (plastic casting marked AB4317)
- steel shaft
- plastic pinion (sometimes simply called a gear) fitted onto this shaft
It is this rotary movement of the knob that is transferred to the toothed rack (https://www.microscopeparts.eu/part/92011), which in turn produces the vertical up and down movement of the condenser (the focusing of the microscope condenser).
Because both the knob and the pinion are made of plastic in this microscope model, it is a part that gets damaged very often.
What is this part needed for?
- as a service part, when a damaged condenser height adjustment knob (or pinion) needs to be replaced
