Posted by RedRoundhead on December 11, 2011 at 19:45:12 from (184.216.207.103):
Mr. Pete23, you seem to have an intimate knowledge of the hydraulic systems on the Farmall/International tractors. I was wondering if you can help me.
I have a 560 gasser, with 2 factory hydraulic outlets, and fasthitch with traction control. I have a Schwartz loader on it. Almost everything is working well, except the one outlet I use for the tilt function of my bucket "leaks down" over short times. It is not the rams on the loader, I can assure you; if i switch hoses on the problem outlet, the leaking changes in its speeds. Also, if I switch hoses on the problem outlet,I get a different amount of hydraulic force. If you totally switch hoses around, the problem stays with that specific outlet. The same if you use it on implement rams. It is the outlet on the right side, it is controlled by the small lever.
There is a bit of over travel in one direction on that lever/valve. If you push it away from you, it can stick, and it sometimes will not automatically unlatch when pulled toward you. I have taken the spool out, replaced the orings, cleaned the screened orifices, and checked that small plastic plunger. I did not replace the plastic plunger. The roll pin for the lever is not bent. I checked the valve body bore for size, surface finish, and out-of-roundness, and did the same for the spool. It is all within spec. It looks to be in good condition. There is no taper.
I am using the valve on the two-way setting.
What the heck am I missing? I am usually pretty clever; This one has got me.
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