Posting to say THANK YOU to all you folks for your detailed discussions on how to work/play with Cats.
I bought my first Cat 2 weeks ago. a D47U (2970). First thing I had to do was adjust the new clutch. I learned how by reading here and it works just fine! I was having so much fun I ran out of fuel Some more searching and I learned how to bleed the lines , that innner tube over the filler worked real good.