Hello
You stand on the hardware end switch. You can look up ‘free travel’ in the manual- as there are always different possibilities; I am not able to give you an answer to that.
If you can’t find anything then just disconnect the end witch shortly- free travel and then tighten it again.
You can also turn the spindle manually when the drive system is switched off and then ‘free drive’
Also for that there should be a key available from Traub.
Eine Schraube ohne Gewinde ist ein Nagel<br /><br />Grüsse aus dem Harz - InTex<br />