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706 lift internal oil leak


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While I have the PTO pulled, I have noticed that there is a noticeable oil leak when the tractor is running, coming up near the cylinder for the lift.  I think the leak is on the right side of the cylinder.  I know these valves are usually serviced by pulling the seat and top of the lift.  I just wondered if there was anything I could do or check, since I am in here anyway, before I put the pto back in.  Thanks!

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Oil can be seen running down toward the right in this picture when the tractor is running, especially when you raise the hitch.  By the way, I noticed this after pulling the top link cover but before draining the rear end and pulling the PTO, in case you are wondering.

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What you are seeing is normal. It is oil flow being dumped back to sump by the unloading valve. The gear pump has a constant volume of oil that has to be sent back to sump if no hydraulic function is on demand 

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As stated, the oil "leak" is normal, and it is working as it should. 

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