Problem with Hasselblad 80/2.8 C T* helical focusing

[yashima]

Hello everyone,

I was trying to repair Hasselblad 80/2.8 C T* when I accidentally messed up my desk and not sure if I have lost some parts or not. The problem now is when I put the lens back together, the helical focusing does not stop at either end, but go past infinity in one end and slides out completely on the other.

Could you please advise me what is the mechanism for the helical focusing to stop, and what bits I could possibly be missing?

Thank you.