[SOLVED] Safe/recommended to change Tank adapter while under pressure?

Forgive me for the newbish question but even now I’m still hesitant around high pressure tanks, not just for self preservation but I don’t want to turn into a statistic that can be used against this community. For the more experienced folks here, would you advise against removing the fill adapter if it’s really cranked in (factory tight) while a tank is pressurized? If it screwed off somewhat easily I’d think it was fine but it seems like this one will need some serious elbow grease. Thank you!

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