Jubilee factory installed live PTO works how?

[Final Frontier]

If I got this thing correct...
That small handle on the left side of your Ford Jubilee (NAA) that rotates between the 12:00 (vertical) and 3:00 (horizontal) positions is the hydraulic selector valve (bypass valve) for the rare, optional Live PTO (LPTO) system.
Your tractor features a dealer-installed or aftermarket hydraulic clutch pack designed to give the tractor "live power". This allowed you to stop the tractor's forward motion while keeping the PTO shaft spinning
How to Use the Valve Positions
12:00 Position (Vertical): This is the Live PTO Mode. When the valve is pointed up, hydraulic oil is allowed to flow to the long hand-clutch lever. You can pull that long hand-clutch lever back to stop the tractor's wheels while your mower continues to spin
3:00 Position (Horizontal): This is the Mechanical Lock-up Mode (Bypass). It cuts off the hydraulic fluid flow to the clutch pack and mechanically locks the drivetrain together..
Important Operating Tip
According to the original Ford service manuals, you should leave this valve turned to the 3:00 (Horizontal) position whenever you aren't actively using the Live PTO (such as during heavy pulling, plowing, or transport). This prevents internal clutch slippage and saves wear and tear on a very rare system where replacement parts are extremely difficult to find.

 

[KCTractors]

I have a Ferguson TO-30 with a similar set-up. It has a longer handle.

 

[Final Frontier]

Cool. Does it work for you correctly?

 

[pomester]

I have a Ferguson TO-30 with a similar set-up. It has a longer handle.

Is your Ferguson set-up hydraulic like this one (which until now I didn't know existed)? I think Howard or one of the other aftermarket suppliers offered a system that would halt the forward motion of the tractor and leave the PTO spin, but it was like a secondary clutch behind the transmission and a mechanical system rather than hydraulic.

 

[Final Frontier]

Yes, that is my understanding and how I did some field trials with it over the weekend.
I contacted one Ford mechanic retired a long time ago. He said it appears to be the Dearborn factory installed option, but he's ninety nine and a half. Take that with a grain of whatever.
Mike

 

[Bob NY]

Is your Ferguson set-up hydraulic like this one (which until now I didn't know existed)? I think Howard or one of the other aftermarket suppliers offered a system that would halt the forward motion of the tractor and leave the PTO spin, but it was like a secondary clutch behind the transmission and a mechanical system rather than hydraulic.

An older farmer, who is gone now, told me his father had a TO-30 with that setup. He eventually traded it for a 35 with a 2-stage clutch.

 

[Final Frontier]

I find it interesting with what options were available whether factory or from a supplier for all of these models since nineteen thirty nine.

 

[KCTractors]

Cool. Does it work for you correctly?

I had the tractor running for just a few minutes and tried the transmission and seemed like it worked. I bought the tractor for parts but when I discovered that it was some kind of industrial model of To-30. it also has a cast iron front axle radiator carrier with a industrial fel on it. I will not part it out. I had two dealers after it but they must of thought that I didn't know what I have.

 

[Final Frontier]

Very cool. Congratulations.