Has anyone worked on/rebuilt or replaced the fan clutch and shaft bearings on a series 60 engine.

I was checking things out this AM and since the air was down and the belt loose, I took it off and examined it with a magnifying glass and decided it needed replacing (small cracks and becoming brittle and worn). Checked out all the other belts and they are also being replaced.

The pulleys all look fine, wear wise and in alignment.

The idler pulleys spun freely, smoothly and true.

Spinning the fan pulley, well not so good, I am thinking, but don't really know. There is a certain roughness to the touch when spinning the shaft. Could this be caused by the clutch. There doesn't appear to be any lube fitting.

When the engine is running there is no (bad ) sound from the shaft. I listened to it with an electronic stethoscope and also felt nothing (bad) with a finger on the shaft end.

Maybe I am catching this just in time?
Maybe there is nothing wrong?
Any ideas anyone.

Also does anyone know will the fan and clutch shaft come off as an assembly without removing the radiator shroud?

JIM