Originally Posted by Ed Holland
I've serviced Shimano pedals (the older SPD-R models). Do not try to undo the plastic collar with anything except the TL-PD40 tool - it is very easy to damage the plastic. The tool makes the job easy. Note that the collar on the right side pedal is left hand threaded.
Yes, I can easily believe this. The tool has, embossed right on it, which way to turn it to "loose" "L" and "R". Good point. Doesn't is make you laugh that people say you can't service these pedals? I wonder who started that myth? People argue the merits of different types of pedals continually, but one thing I love about Shimano pedals is that you can break them down and service them.
Originally Posted by Ed Holland
Once you're in, follow cascade 168's excellent directions. It would be worth having some fresh grease and spare bearing balls on hand, I believe the correct size is 3/32" - it was for mine. You might as well do a full service once you get them apart - they are worth it. My SPD-R pedals have given excellent service, in the last five years I overhauled them twice and they are still almost as smooth as new.
Good luck,
Ed
Yes, they are 3/32". All of my pedals use two sets of 12 balls per pedal. So, you need 48 to service two pedals (and LOTS of patience to handle each one). I'll say again - this is a good project for a rainy day or mid-winter when there is too much snow on the ground to ride. Thanks for your kind comment, Ed.