Changed the hydraulic fluid, and yeah didn't change since its not hydraulically driven (As far as I can tell)...so next is a trip to the tractor doctor...am sure it will be a clutch replacement. They quoted me $1,500 and that seems in line with other quotes that I have seen online from others...
Have you tried adjusting the clutch? What is the freeplay currently? The manual says about 1in at the pedal. You should also have a spring holding the pedal up.
New Holland T2310, Kubota L3010 GST, New Holland TC21DA, Farmall H *** Previously - 1941 John Deere B, Shibaura SD1500, John Deere 850, Bobcat 642, New Holland 1925
You Tube has lots of videos about getting abandoned tractors running again. Check out the DieselCreek channel. He does this all the time and shows you the steps he goes through for a variety of engines. It's a rather methodical approach.