Originally Posted by
Trevtassie
Unscrew the cage, use a pointy something to work off the plastic cap. That'll expose the locknut and the cone. If you are lucky the cone will have spanner flats on it and you can jamb a screwdriver down the side of it when you are tightening up the locknut.
It's hard to get a good photo. Everything in both ends looks perfectly round.
Here's a picture after cleaning the grease out:
There doesn't seem to be anything that any too could grab onto. Are some pedals just not serviceable?