Hi new to this site and looks to be very useful; I have a JD 310a now for 15 years now and it has always had a hydro. pump noise [high pressure pump] the round rubber had to be replace for the coupler which took care of that noise but I get a pump noise when the tractor is not moving anything,loader ,hoe, but when I pull a lever the pump is quiet. I hear that is common with this pump???? Is the pump just at the end of its life ?? Could it be the de-stroke valve on the side of the pump and of so can it be replace with a new valve and seat? Also I have never cleaned the screen in the transmission, I have change both the filters down there several times and they are always clean. My question is the screen location at the end of the 3 1/2'' hose that go's between the vertical filter can and the transmission? If thats the case it looks like I would have to remove the vertical can and disconnect the hoses going to it which seems like a lot of work for a screen cleaning. Any thoughts here would be very appreciated.
john deere 310a pump noise
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