thanks for info,you said tightened in the direction of rotation.
so when removing it does it rotate to the opposite of the rotation?
may be i will come across a job for this one day
do you have any web link to it?
Yes, opposite to loosen. Because a lot of people don't read install directions it's not uncommon to see an eccentric tightened in the wrong direction.
I don't have a link but google might be able to find something. I know bearing mfg's would have something on eccentrics.