traneengineer
New member
I have solved a difficult and nagging problem that would have taken only 5 minutes if I had known what I am about to write about my 1953 Ford Jubilee edition NAA tractor. The problem was the 3-point lift. It worked fine, but would often be unresponsive after the tractor sat unused for a day or two. The engine would start right up, but the lift sometimes would not move at all, sometimes for several minutes, sometimes for hours. At other times it would work right away.
I found that the problem was the backpressure valve. It is inside the hydraulics case, but you can access the back end of it under the acorn nut on the right side of the case. Fortunately, that is all you need! With the engine running, and the acorn nut removed, and without turning the slotted, threaded bushing, press on the end of the valve, inside the bushing. The lift starts working immediately. Put a tray underneath, as oil will be dripping out where the acorn nut should be.
Replace the acorn nut and be on the way.
With my tractor it happened again, so I added a little helper: a short (about 1/2 inch) piece of 1/4 inch fuel hose, with castellations cut on both ends. Placed on top of the backpressure valve, under the acorn nut, it adds a little force, and raises the backpressure so the controls will work. Just a little pressure, as too much and the controls freeze up. I trimmed the hose just right, and shazam, it's perfect.
I won't write about the two days work I did on the Jubilee before I figured out the solution
I found that the problem was the backpressure valve. It is inside the hydraulics case, but you can access the back end of it under the acorn nut on the right side of the case. Fortunately, that is all you need! With the engine running, and the acorn nut removed, and without turning the slotted, threaded bushing, press on the end of the valve, inside the bushing. The lift starts working immediately. Put a tray underneath, as oil will be dripping out where the acorn nut should be.
Replace the acorn nut and be on the way.
With my tractor it happened again, so I added a little helper: a short (about 1/2 inch) piece of 1/4 inch fuel hose, with castellations cut on both ends. Placed on top of the backpressure valve, under the acorn nut, it adds a little force, and raises the backpressure so the controls will work. Just a little pressure, as too much and the controls freeze up. I trimmed the hose just right, and shazam, it's perfect.
I won't write about the two days work I did on the Jubilee before I figured out the solution
