Can you HEAR the relief valve working when the loader stops lifting? There should be some sort of hissing or squealing coming from somewhere in the system that indicates the relief valve is opening.
If you don't hear any hissing or squealing, it's NOT the relief valve.
You need to pressure check the system.
The front-mounted hydraulic pump is generic and easy to replace. It is likely a Cessna or Eaton or another common brand pump. Doesn't matter they all use the same SAE mounting. You just need one with the right GPM and pressure capacity. Probably a 25GPM pump but you can get that off the numbers on the pump. If you want to slow the loader down you get one with a GPM rating of 15-20.
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Today's Featured Article - The Day Mom Drove the 8N - by Brian Browning. My Dad was wanting to put in a garden but couldn't operate the 8N and handle the old horse drawn plow he had found and rigged up to use with the tractor. Well, he decided to go get Mom out of the house and have her drive the tractor while he walked behind the plow. You got to understand that while my Mom is a hard worker who will always help whenever she can... she had never operated farm machinery before that day. Dad got her out there, explained how the clutch was the same as in our o
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