John deere 4310 hydrolics not working

[Country golfer]

I have a 4310 hydro and a couple days ago the tractor stopped going forward and back when I pushed the pedals. Then the front end loader wouldn't raise or lower. I did a hydraulic fluid change and now I have no hydraulics or power steering Any suggestions

[rockshaft]

I have a 4310 hydro and a couple days ago the tractor stopped going forward and back when I pushed the pedals. Then the front end loader wouldn't raise or lower. I did a hydraulic fluid change and now I have no hydraulics or power steering Any suggestions

I take it she starts up and runs just fine? Hard to diagnose, but could be a pump failure.

[beenthere]

There are two pumps. One for the steering, another for the rest of the tractor. Is the steering working, or not?

Time to get a gauge and measure some pressures.

[atschirner]

If the 4X10's are the same as the 4X00 HST's it sounds like the sump screen is covered in gray slime.

This is not a difficult service but be prepared. You will be draining the entire sump which is about 11 gallons of fluid and disturbing a flange gasket which may need to be replaced.

I had the same problem on my 4400 when I bought it with 950 hrs.

Good luck and please let us know what you find.

[Country golfer]

My power steering was working at first but after I changed oil and cleaned the suction screen filter I lost all hydraulics and my power steering.