Having a problem getting the rear drums off. There is a hole in the backplate with a rubber grommet - is this for slackening off the self adjuster? If so how does one go about it? I can just make out what looks like a ratchet wheel but no idea how to release it. Drum is free and not rusted on. At 30K miles there's probably a bit of a wear lip in the drum, hand brake is of course off. Do I need to slacken it off at all? - the hole must be there for something.
Can't find anything on You Tube or written, the Fiesta brakes are totally different, but perhaps similar to a Focus?