Ford 335 / 3600 Power steering

I have a Ford 335 (similar to a 3600). I was using the tractor and then fluid starting pushing out of the power steering breather cap. Then the power steering went.
There are no leaks on the steering column. This was sudden with no steering shudder or hesitation. I have read several posts about power steering diagnosis and
just wanted to see if anyone else might have some insight. Ultradog has several valuable posts and maybe I am overlooking the key post that would match my
scenario.

To be more specific with the symptoms: operating tractor, no unusual stress during operation, oil starts pushing out of the breather cap and then power steering
slows. Not an excessively hot or cold day. No steering shudder or hesitation prior to the oil being pushed out of the resevor cap. The oil that was pushed out shows
no unusual signs of milkiness or dark coloring. I can add oil only to see it push back out of the breather cap. No oil leaks other than breather cap oil flow. The
scenarios I see posted are similar but they also include leaks around the steering column.

Ideas are appreciated. Planning to order parts from this site and wanted a bit more advice and recommendations before moving ahead. Thanks to all in advance for
sharing your power steering experiences and diagnosis.

Hobbs

Item 30 is the location of my oil leak.

Sounds like a restriction. Remove the lower line, plug the hole in the canister, and crank the engine to check the flow. If that don't work take the canister off the pump. Might need a new filter. If you pull the alternator bracket it make the job easier.

It should leak out of 26-27.

Is there a gasket in cap? #26 is vent usually comes out there.

They need to fix the edit feature on here. When you put oil in the can you want to be lower then the fill port. I stop at the first knuckle of my index finger.

IF.. the filter fails... it will let the returning fluid squirt right at the cap.. and leak badly. Replacing the filter will fix it by making the fluid come out of all sides evenly and slowly.

reinstall the cover CAREFULLY as you can easily strip out the cover bolt, making the pump worthless. A rubber mallet comes to mind to help seat the cover on the pump.

If the new filter fails again,, you need to start looking for other problems, like stuck pressure relief valve....

Thank you. That seems like the best approach and
it helps through process of elimination.

Thank you Sir. Most helpful.

Yes sir, there is a gasket in there and I plan on installing a new one along with a new filter and other seals.

Thank you! I will do as you have suggested to check
flow.

Many thanks! I have the full compliment of seals as well as a new filter on the way. I have work travel this week and plan to change the filter this weekend when I return. I look forward to posting an update to help complete the circle and share the results later this weekend.