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JD 4410 loader problums

edd I have a John Deere 4410 with loader.The tractor/loader has 135 hours.I was scraping the ground today and the loader Seized up for a lack of a better word.the bucket will only lift approxmitely 2 feet off of the ground and will not tilt at all.it feels as if it is at its max height/weight capacity.the three point lifts fine and the tractor drives as normal. Any help would be apreciated.

Thanks Edd

Dale G. Basgall disconnect the inlet pressure line and put a pressure gauge in it, the one that comes from the hydraulic pump. Make sure there is pressure into the loader control valve. Disconnect the return line and start the tractor, there should be no oil returning from the loader control valve to the hydraulic reservoir with none of the control valves moved. If there is the pressure regulating valve in the loader control valve needs to be removed, inspected and cleaned.
Cody Where does the oil go, on an open center hydraulic system, like the 4410 has, if it doesn't flow through the valve, when the levers are in neutral?


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