John deere 2355 hydraulics died

[Shadow_storm56]

we have a 2355 and a 2350 along with other tractors but these two are very similar. Out of the blue without warning the 2355 lost 99% of hydraulics, steering still works but 3 point and auxiliary hydraulics are just little rhythmic pulses barely doing anything. I drained the fluid and it was like brand new, I drained the one filter and it appeared the same. Manual says theres another but I cannot find it. I don't know what's going on as it just started doing this with no warning just started it up and here I was. Anyone have any ideas? I can't imagine the pump going out while it was sitting there...

Also when I say hex head I mean like a gigantic allen screw

 

[85Hokie]

I see you already posted on the Deere site......

Either you are sucking air or maybe the pump has quit.

Are these hst machines? or geared?

 

[Shadow_storm56]

I see you already posted on the Deere site......

Either you are sucking air or maybe the pump has quit.

Are these hst machines? or geared?

2355 is full standard, Steering is hydrostatic I believe. Yes I am pretty desperate as it's my main tractor for spraying strawberries, I have other tractors but they don't fit the area except the one that's too low. It pulses, like if I pull up the 3 point it comes up in little pulses very slow...