OK. Figured it out - in case anyone has the same issue down the road and finds this via searching, a 3/16 hex is slightly too big, but works. Also, lots of patience.

Hi - first off, I've read the other threads on removing the dosers, but I can't figure out how to access the bolt on the right on mine. So...

I just picked up a Mazzer Major and want to remove the microswitch at the top of the doser so I can get access to the chute for cleaning (I'll just be single dosing). I know I need to add a jumper wire after I remove the microswitch, but for the life of me, I have no idea how to start the process... As you can see in the photos, one of the two bolts is heavily obstructed by the microswitch itself. Is there a secret to getting the hopper of that I'm not aware of? Thanks!