[dmjlambert]

The brake adjuster lever will click against the star wheel as you tighten the brakes, and to loosen you will need to use a screwdriver to push the adjuster lever away from the star wheel to turn the star wheel in the loosening direction. Dragging can be caused by leaking wheel cylinder, or leaking bearing seal, or binding parking brake cable/conduit. I suggest post pictures of what you have going on.