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JD 4440 lost hyds
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260david437
Posted 6/15/2017 17:51 (#6072955 - in reply to #6072927)
Subject: RE: JD 4440 lost hyds


north east IN
You may of spun the hex shaft that runs the little pump in the back that supply's oil to the main pump. At the back of the tractor take the bolts out that hold the top link on and under that is a plug. Take that out and you will see the end of the hex shaft. If you are lucky you can pull it out. What happens is it wears round where it goes through the pump so if that is the problem it will need a new shaft. The trick if it is rounded is to get the hex lined up with the pump so it I'll pull out.
Might want to check the priority valve also

Edited by 260david437 6/15/2017 17:52
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