First things first- - - -replace the worn adjusters so the teeth will be the right height. Then adjust the pawl to contact the star wheel by doing a little careful twisting of the pawl so it makes firm contact with the star wheel. I was working on automobiles in the late 1960's when self-adjusting brakes started being used, and I taught automotive classes at the high school and Vo-Tech school level for about 35 years. A few hundred of my students learned to do that, and it works very well.
Jerry

"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!