Cat Thirty fan assembly help

is there any of the clutch material remaining, or is it metal to metal? was the rear key in place when you took it apart?

Yes there is material on both sides of the fan and the rear key was in place. The spring was under compression too. I looked in the parts book and I think I have all the right parts but it really has me baffled as to why there is metal to spinning metal contact in there.

The noise you are hearing is from the gears that drive the fan. I have never heard a thirty yet with a quiet fan. The spring puts pressure on the sliding collar in your picture to keep the fan clutch tight. The spring rotates with the fan shaft, there is no metal to metal spinning of the spring, it sits stationary on the fan shaft. I hope I explained this so its understandable. Study the assembly a little and you'll see what I am talking about. As for the noise, its just a quirk of the cat thirty, mine does it pretty loud. Caterpillarman

Thank you. I see now that the large washer inside the housing is sitting against a shoulder on the shaft. That is what the spring is putting pressure against to keep tension on the fan blades. :frusty:

Jed

Jed, I have an extra fan assembley down here somewhere if you want to try it. Let me know.
Ken