I think I turned the adjusting wheel the wrong way. The wheel is fairly well stuck and the crappy little star wheel will not back off. I understand you need to use 2 screwdrivers but not sure exactly what to do. The tiny slit in the back of the drum us barely large enough for 2 screw drivers. Am I pushing something out of the way or prying up or down on something? I filched around for an hour but the mosquitos were eating me alive so I gave up for the day. I just don't understand exactly what I'm trying to release and how to know when I have released it. And for what it's worth it is the left rear drum.