I just put a Hasselblad kit together, and I seem to have a defective back.
I did not try to put a film in it yet, but I understand that even without film,
turning the crank clockwise should ultimately change the frame counter to
1 and stop. This doesn't happen and the crank turns indefinitely and the counter
never goes past 0.

Is this a known problem? I know people will tell me to take it to a tech, but I'd
prefer fixing it myself if this isn't extremely difficult and someone knows what
the problem might be.
Thanks!