[MENTION=536409]RustyJames[/MENTION]
Update: turns out the caps were not that hard to just pry off. I figured they should be repairable because of the screw bolts used implied the ability to disassemble... usually if some part is disassembleable then it all will be.

As a note, you should mark the orientation of the carriage bolts before removal otherwise you'll never get them back in without oversizing the hole by a fraction. Of course, if you don't want to clean the pedal, you don't need to remove them.

Images:
- Pry point. (If you don't have an extended tip 45° needle nose, you don't know what you're missing. They are endlessly useful.)
- Jam nut (washer and cone nut underneath).
- Old vs. rebuilt.
- Bearings on the second pedal. You can see why they needed rebuilt! Of note, the "ring" in the 4th picture is just hardened grease. There was actually an extra blob under the cover, and even though that grease had obviously never been used, it still had the consistency of beeswax.

Here is a before/after video with the left vs. right pedal. Originally both as dirty and stiff as the left.