Bosch 1200 Z-axis height issue

So I did some tests:

  • with the Z-axis: the inner piece will always pop of the shaft after going down 2 times
  • without the Z-axis, but inner piece attached: if I press it down manually, I get the depth i need

So the problem is the inner piece popping off the shaft. Should I attach it with some hot glue?

Edit: found some clues in following topic:

  • Ned just pushed it into place
  • Dag put some screws in it to hold them together

I think I’m going to try screws to.