Posted by RobertTX on May 27, 2009 at 13:14:13 from (34.254.119.224):
In Reply to: cycling 3pth posted by 550Doug on May 27, 2009 at 13:00:19:
Usually this is caused by leakdown of the lift cylinder. The oring or seal gets worn, oil leaks by it, and the arms drop. The control valve senses the drop and sends more oil to restore it to the set position, then the above repeats. Since it is dropping and then resetting itself, this is a good indication that the pump and control valve are OK. Good news is the cylinder oring or seal is usually not expensive (I have done International, Deere, and Ford). The bad news is it is usually not easy to get to.
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Today's Featured Article - What Oil Should I Use? - by Francis Robinson. I keep seein this question pop up over and over again in discussion groups all over the web. As with many things there are often several right answers and a few wrong ones. Some purist I'm sure will disagree to no end with what I will tell you but most of us out here in the real world don't really care do we ? Some of them only bring their noses down out of the air long enough to look down them anyway. If you are like me you are only doing this old tractor stuff because you enjoy it. You
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