Originally Posted by
quicklook2
the self adjusters do not always work.
Then there is a mechanical problem that needs to be fixed.
It's a very simple design. To test if the self adjuster works, with the drum off, you pull up on the small cable with a hook on it. Release the cable and the cable allows a lever to contact a tooth on the star wheel. If a full tooth is engaged, the lever will turn the star wheel to spread the brake shoes closer to the drum.