In Reply to: Re: Ford 600 posted by mike-ga on February 17, 2014 at 20:52:07:
If you go to this site/page and in the menu click on hydraulics it should take you to some more info on the parts involved. One thing in particular that Mr. Smith addresses is the cam follower pin and even shows a very worn pin.
I agree with Kurt, IF you have a prime on the pump and IF you have oil flowing under the correct pressure to the control body then more than likely it boils down to a mechanical failure or malfunction of some part or parts inside the housing. I too suspect the cam follower pin.
If that tractor has a round cover with a dipstick for the hydraulic reservoir. You can remove that side cover and using a mirror and light watch for excessive oil flow and probably even see what is happening with the linkage. I'm shooting from the hip a little there as I have not tried the light an mirror but have seen others mention it.
When the piston O-ring in my NAA went, the arms still moved a tiny bit but had no lifting power. The oil was gushing out around the back of the piston. If the tractor sits for a long period of time, I believe the O-ring will deteriorate. Then the first time you try to lift something with the 3-pt, it starts bypassing.
If you pull the cover, get some help or like Kurt mentions, us a hoist. The weight is substantial.
Wanted to mention also that I believe there is a DVD out on repairing the hydraulics. I don't remember who sells it though. Not much help there am I?
Let us know your progress, if you will.
Mike
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