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If your tractor is original, and equipped with a "belly pump" (located in the bottom of the transmission tunnel called a torque tube. It has one control rod on the right side of the operating platform with a bent ring loop handle. This is a single acting (one way) hydraulic system of modest pressure, and modest flow. Pulling back on the control is pressure to the 3 ports (one on the right, and two on the left). They are all connected internally and work at the same time. The return goes from the cylinder back through the single hose to the resevoir. It is pretty much stone reliable. The level is checked with a tall cap under the front of the gas tank on the right. If the dip stick is missing, I believe the level should be about 7" doun the pipe. (someone needs to measure a dipstick, mine it 780 miles away) When the lever is in the center of travel (latched on the small catch on the bottom of the rod) the system is on hold, keeping the cylinder up. When lifted upward and pushed forward the pressure is released and gravity (or springs return the oil, as the equipment lowers. To put on two way valves will work. It requires a open center two way spool valve, and for the regular control to be on (pulled back all the time). The valve would be connected with input from pump, output to each end ov a cylinder, and discharge back to either the drain plug in the bottom of the belly pump, or into a T fitting at the fill cap. This system's limitation is that it is not "live" it only works when the clutch is out. Many possible other ways to get live hydro are available, but on that model it should include replacement of the front cover of the engine and up graded gears and an appropriate live pump placed between the distributor and the oil fill casting. I hope this helps. Please help us help you with better keyboard effort, many "Blogs" have deteriorated to easily misinterpreted strings of letters. Ours has safety related information that must remain clear and definite, thanks,
JimN
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