hey! good to see you here
not sure if you saw this but >>> hasselblad shutter repair manual >>>
https://dickwernerhassystore.com/hasselblad-lens-shutter-repair-manual
this guy has manuals for the camera bodies and film backs and lots of other stuff too.
anyways, the manual costs 50$ and then you need to buy the tools probably and cross your fingers and toes if you have never repaired a jammed shutter
that you won't damage it while repairing it. i sometimes think things seem ez to fix but then you start the strip down and get this sinking feeling ...
not quite the same but i have a english rod brake 3speed bike from IDK the 1950s with a sturmey archer hub. i found some guy on the you tube who stripped one down
and re-assembled it and just before i started to dissassemble mine i realized there are like 100 tiny little parts and i have no clue what i am doing !
my guess is it might be best to find a junk broken jammed lens to play with first before you take yours that you like apart, you know, a guinea pig and all that
have fun !
john
ps no need to buy a new lens, but sending it out might cost 100$