Whenever my crank machine locks, after returning na locking mechanism when I turn it back the crank usually produces weird sounds and sometimes it's hard to bring back. And also there are times when pulling the string I can't pull it anymore but the locking mechanism is still not clicking. https://photos.app.goo.gl/8hNJ4PsVigG4QwC46
Sounds like a problem with the break, my guess from that short description is that the disk jumps out of the proper alignment. Maybe this helps.
