I replaced the shoes of the rear drums of the Caravan yesterday. I spent a few minutes looking at the adjuster mechanism and I can't figure out how it works. I set the shoes without springs to simulate the service and park brake motions but the adjuster just sat there. Presumably over the life of the pads the star wheel turns to take up the slack. But what turns it? There is a lever that rests on the star wheel that serves at least the purpose of not letting the star wheel relax the adjuster. Does this lever spin the star wheel the other way? Is it only for the park brake or is it for the service brakes as well (same shoes in this case)?

Thanks,
Sixto
95 S420
87 300SDL