Hi Chris,
jetzt hab ich mich mal im Forum angemeldet.
Ich bin in Japan, aber inzwischen konnte ich das Problem beheben.
I just heated the bolts a little (~50 degreesC) with a hairdryer and used a longer wrench for better leverage. That did the trick and I could easily adjust the pin. I did not take out the bolts. Just retighten them.
Btw, my collar bone is fine again. The accident happened already 3 months ago…
Regards,
Christian