Farmall live hyd

I have an M farmall that I want to put a m+w live pump on and 2 hyd spool valves on but also I want to plumb in the power steering to the hyd too. I'm sure I will also need a priority valve . Does anyone have a unit set up like this they could take pics of so maybe I con see what I will need to do exactly. Thanks

Wardner should have a few pics, I am sure he will read this one. Others may have pics as well.

Welcome to the site.

Hopefully Wardner will see this and come to help. I know what I want to do just can't seem to make a map in my head.

Well, Tom, I don't have a M. All my non-standard hydraulics are on SMTAs, 400s, 504, 650, and the 660.

However, one has to start at:

1. The reservoir

2. Run suction line to pump intake

3. Run pressure line from pump to priority valve.

4a. Run priority line to inlet on torque generator (steering motor)
4b. Run excess flow line to port nearest the relief valve on valve bank.

5a. Run outlet line from torque generator to reservoir
5b. Run outlet on valve bank to reservoir.



My pictures are not that good because the components are all over the tractors and the tractor below is a SMTA.

Anyway, if you go to Steiners, they have a schematic for installing their priority valve. Think that would be more helpful than viewing all the hoses in the picture below.


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In fact, I can't really remember what I did on this tractor but it works. There are five hoses.

Top right...pressure from pump
Top left...pressure to Behlen actualor
Middle left...think that is return from valve bank, pressure relief in priority, and tee'd back to reservoir.
Next to bottom...flow to SMTA liftall.
Bottom...Suction to pump.

Are you confused yet? It's a good thing that I didn't mention that this tractor also had a secondary PTO pump as well.

One other question about live pumps.... My tractor is a 44' and I see talk about older cams gears. What is the difference on these gears and where would I get a newer gear? How much work is it to replace this?

Mid 1950 production is the split. Use any gear from a SM, SMTA, 400, 450. The original gear is fragile and can easily deteriorate and crash. Changing requires removal of the front end, Radiator and castings. Removal of the pulley and front gear cover. Jim

I should also add that the Liftall feeds the valve bank when the Liftall lever is pulled back. Here is another picture of the same tractor.

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Might want to consider doing something like this. Get a 400-450 reservoir, valve bank, and priortiy/flow control as one package. Get the one set up for power steering and take the Behlen as well. Now you have three remotes with PS and its all engineered for you. Just hook up the pump. Should be alot cheaper than buying individual components. This tractor now has six circuits. The PS model has the "J" tube as seen in the picture.

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The M&W pump doesn't have the gallons/minute that the IH pump has. I think it is 10 GPM vs 15 GPM. Consequently, it is not doing as much work. I doubt if many farmers replaced the cam gears on their older M's when installing the aftermarket pump.

Of course, either pump can be deadheaded and that will put stress on the gear. If you set the relief valve on the valve bank low enough, that relief valve will protect the gear. What's low enough? I don't know. Maybe 1000 PSI.

I bet the crank pully is a real treat to remove after all these years.....
Looks like it has a nut that comes off first?