How far can I turn the dialing counter clockwise (coarser) on Eureka Mignon Specialita

I have a eureka mignon specialita, I wanted to grind coarsely, I went around 3 full turns counter clockwise, and I heard a sound that I can describe as squeaking.

Now I know that to find the zero point I have to keep turning the dial clockwise (finer) until I hear the chirp. And I assume if I go further, I might damage the burrs.

But I’m curious, how far can I go on the coarse side? And is there any chance that I will damage internal parts doing so?