Running a 400 without power steering motor

HSE · Apr 4, 2009

Bought a 400 farmall that somebody previously removed the Power Steering Unit (believe it was a behlen unit) in the steering shaft. My question is "What do I need to do to hydraulic system to run this tractor?"

Do I:

A: Loop hydraulic feed and return together?
B: Plug off both of them?
C: Remove a spring or priority valve or flow divider somewhere?

Not sure about A ..... will it cause other hydarulics not to work?

I figure B is wrong because flow will be deadheaded.

I have no idea about which internal valve to do what to on C.

I have a short piece of shaft already in place of where motor unit was. I also do plan on someday adding a power steering unit back in place. Serial number is #6556 if this makes a difference.

Thanks for any help!

billde · Apr 4, 2009

(quoted from post at 06:02:39 04/04/09) Bought a 400 farmall that somebody previously removed the Power Steering Unit (believe it was a behlen unit) in the steering shaft. My question is "What do I need to do to hydraulic system to run this tractor?"

Do I:

A: Loop hydraulic feed and return together?
B: Plug off both of them?
C: Remove a spring or priority valve or flow divider somewhere?

Not sure about A ..... will it cause other hydarulics not to work?

I figure B is wrong because flow will be deadheaded.

I have no idea about which internal valve to do what to on C.

I have a short piece of shaft already in place of where motor unit was. I also do plan on someday adding a power steering unit back in place. Serial number is #6556 if this makes a difference.

Thanks for any help!

If it was an add on Behlen, they were independent from the tractor hydraulics and you don't need to change anything. The Behlen had its own pump, reservoir, plumbing, and of course the torque generator.

HSE · Apr 4, 2009

Thanks for reply.

It was a factory one I guess. It was plumbed to the same hyraudlic pump that runs the three remotes.

MIKE FRENCH · Apr 4, 2009

You can just remove the hoses and cap the fittings, one on the priority valve and othe at the tank. Since there is no priority flow all will go throught the hydraulics with no problem. If wanted you can remove the complete priority valve and replace it with a non power steering one if wished, if the powersteering priority valve is good, it is worth a little money, good luck.

D Slater · Apr 4, 2009

If its going to be used agian it may be better to loop it. If you dead head it the saftey relief valve for the power steering will be opening.

Running a 400 without power steering motor

HSE

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billde

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HSE

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MIKE FRENCH

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D Slater

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