Just a quick question, im currently buying spare parts for my H2D, and looking at the belt tensioner, they say when adjusting the belt to just loosen the screws a turn or 2, but if you want to replace a screw because you may have stripped a head (this hasn’t happened, but being safe for if it does, I know not to over tighten) can you one at a time remove these screws and replace them without messing up the tensioning system?
Looks like it’s possible 
Also found this in the wiki:
https://wiki.bambulab.com/en/h2/maintenance/replace-xy-belt-tensioner
I’d keep one screw tight while replacing the other. However, no guarantee. 