Next because I'm a complete geek, I strip all the screws out, clean them with IPA, ultrasonically clean them and them clean them with metal polish. The bolt threads are minty clean!

allscrewsUScleaned.jpgscrewinIUS.jpg

We now need to go a little deeper into the bearing to get the thrust pad and spindle.

spindlecleaned.jpgthrustpad.jpgUScleanedspindle.jpg

The above pictures show the spindle being US cleaned. The thrust plad has been examined and is very good order, the spindle has also been ultrasonically cleaned as well as freshly polished. The thrust pad has been cleaned with IPA, US cleaned, and then polished.