Sanity check 39 rear brakes

[adileo]

Hi guys

In the 5-6 years since the purchase of my 39 coupe, I’ve put about 12k miles on it. I’m thinking I would like to adjust the rear brakes (front are disc).

Am I correct, this adjustment is all done with the upper bolt shown in pic?

Also am I correct that (with emergency brake off) I would tighten one side till I can’t turn wheel then back off till I can turn - then repeat procedure on the other shoe (same wheel)?