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640 Hydraulics Question

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John C. (IN)

09-17-2002 08:16:46




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Greetings: A retired farmer friend who knows I lurk on this board asked me if I can help with a problem he has with a 640. Seems he was bush hogging with a Ford cutter, shut the tractor off one day with everything working fine, and the next day the lift wouldn't lift. Is there something we can check on the tractor prior to moving it 75 miles to my place? All the fluids seem full, no boot at all on the shifter, and the tractor has lived outside all of it's life. The casting above the starter is stamped 640, and the side of the engine has EAE 6015-J cast in it.
Thanks in advance,
John C. (IN)

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Phil (VA)

09-17-2002 13:30:57




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 Re: 640 Hydraulics Question in reply to John C. (IN), 09-17-2002 08:16:46  
As I suspect you already are thinking, it is likely there is water in the reservoir. Of course the water is on the bottom. So that's almost certainly one problem, but I sorta doubt replacing the fluid is gonna solve the whole issue. You may have to remove the lift cover and one thing to consider is replacing the cam follower pin, a possible culprit. The two of you can do that without moving the tractor if you have a clean place to set the lift cover while you work/cuss. You didn't say if you tried both position control and draft control or if holding down on the PC lever makes a difference, etc., as that might give someone on this board a tip to help diagnose further. Also check the archives. There's lots of stuff in there on this issue.

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