I'll second that..... It is absolutely scary that someone can handle the
adjuster, not recognize it and continue working on the brakes....
I can only suggest that neophytes purchase the manual specific to the car
they are working on and peruse the pertinent sections BEFORE work commences,
once again with the wheels off and the brakes exposed and again during the
process when necessary.
FWIW, these brakes are not duo-servo self energizing..... looking at the
bottom for the adjuster is futile. Instead, the adjuster is in the strut
between the shoes, directly below the wheel cylinder. Additionally, many
late model cars with drum rear brakes feature one thickness of lining on the
leading shoe and another thickness of lining material on the trailing
shoe.... these must not be mixed up!!
This is brakes, guys..... not a high school experiment. If the car don't
stop, you get more than a failing grade and you never get a chance to do it