Check Break said: (quoted from post at 07:37:34 05/26/13) Lets go back to square one. Its been a long time but it won't hurt to start there. Three years ago you installed a new pump. Why? What were the symptoms and how did you know it needed a new pump. Was the pump new or rebuilt.
I'm wondering if you're sucking air somewhere but that's a solution before confirmed symptom. You might start by testing the pressure at the pump now that you have a gauge.
The symptoms three years ago were much the same as they are now. After installing an aftermarket remote (six years ago) to be able to raise the hay mower all was fine for about three years. Then the hydraulics began to fail. I checked fluid levels, they were fine. After speaking with dealer at that time and not knowing any better I deduced it was the pump and purcased an aftermarket one via the internet since it was roughly half of what Ford dealer wanted. A machanic friend of mine helped me install it. (Incidently, the original pump did not show a significant amount of wear and I still have it. Afterwards the hydraulics worked for a season but leaked from the top of the pump where the tube goes up to the flow control valve. When I addressed this it looked like my friend had left off one of the o-rings on that tube. So I installed one and everything was good as we began hay season. By the end of the season though we were back to hydraulic failure. I bought Ford fluids because the dealer told me the generic brand could be the source of the problem. Changing fluid did nothing really to improve the condition. The last two years I have just done without hydraulics on this tractor. Im tired of it not working the way it should. I don't have money to take it to the dealer though. I will put the guage on it tomorrow ( I had to work today) to see if I get a reading. I didn't get a reading before replacing the o-rings.
Not sure where I would be sucking air from if that could be the issue.
Thanks for your reply!
This post was edited by Nighteagle at 20:52:52 05/26/13.
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