(05-04-2012, 11:55 PM)henryarnold Wrote: Here's the interior of my head. The brown stuff looks like rust but it is not rust. I'm not sure what it is but it looks and feels like a polishing compound which makes no sense. This contamination is reason enough to replace all bearings. There was a brown sludge in the bottom of my gearbox.
You are not the only one to find "brown muck" in the bottom of the gearbox in an RF45 type of mill ...
A similar issues with a brand new IH mill ... a "heavy duty" RF45.
Arvid