Hello. I am here new in my distress and many greetings in the round. We returned from the holiday last night. To remove the crank to our old sweetheart from the guest box, I had to find when opening up that I held the whole lock in my hand and thus an access to the box is impossible. Our old Fendt is still from the end of the 90s and with the knob the lock bolts are closed or opened by turning. That seems to not go any more, because in my opinion the counterscrew was lost on the ride. Does anyone have a tip on how to get to the lock mechanism without flex etc? Thank you!