2305 no hydraulics

[rjgogo]

The hydraulics on my 2305 went out and there is a very loud whine in the pump. So far, I have changed the oil and filter in the transaxle, cleaned the mesh filter with the magnets and put it all back together and same problem. After I changed the oil and ran it again to check to see if it was fixed and nothing. The oil in the sight glass was really aerated after running.

I also took the pump off and had a look inside and there does not appear to be any thing in there that would render it non functional but I am no expert. Some very very small scratches on the inside but that is about it.

The whine is very loud and I did run it briefly with the pump off and that confirmed the noise is coming from the pump. I can't seem to find what could be causing this. Any ideas on what I should check next? The tech manual has not been much help but maybe I am looking in the wrong place. Thanks in advance.

 

[Wvanatti]

I’m sure someone with great advice will chime in soon, but thought I would ask- did you put the correct fluid in? I add a quart of wrong type on my 2305 and it whined like crazy. Changed it all out and put the JD correct fluid. No more whine and never has since. I’m guessing this isn’t the case... please let us all know what you eventually find. Good luck. Bill

 

[rjgogo]

Thanks, yeah, same stuff that has been in there the last 400 hours. Well I changed it with the same stuff.

 

[Wvanatti]

What about the rubber hose that connects to the cap for the hydraulic filter screen. Is there any chance it could be collapsing causing the pump to cavitation ? Might look underneath while whining and ensure still round in shape. Again- hopefully someone will respond soon with a reason for it. Hopefully something simple.

 

[rjgogo]

Thanks, The hose looks good but I will have a look under power. The inner screen was just cleaned. So I can rule that out.

 

[Wvanatti]

It’s been 35 years since I really worked on hydraulics ( military mechenic). But what I remember causing hyd whine -either restriction,bad pump pressure, one way flow control valve bad or cavitation caused by moisture or air in the line. I’m a back yard mech. At best. Just some ideas. If the sight glass is showing clear fluid, that’s at least one to rule out. Are you sure the knob for flow control below seat is set correctly?
Be a pain, but I think the next step would be to find out how an where to hook up a pressure gage to see if the pump is good. My 2cents. Again, hope someone with better knowledge of the system jumps on an helps soon.
Bill

 

[jsb2b]

Are you sure you put the screen back in with the open end to the outside (hose) and the capped end to the inside?

 

[rjgogo]

Are you sure you put the screen back in with the open end to the outside (hose) and the capped end to the inside?

Mine in an older one and the screen tube is open on both ends. But it is cleaned and installed correctly. It was working fine until I raised the bucket all the way and held it there for a while. That is when the trouble started.

 

[beenthere]

rjgogo
Can you give us some hyd. pressure numbers?

working fine until I raised the bucket all the way....

Disconnect the FEL hoses and re-connect them. Maybe one is not quite engaged..

 

[rjgogo]

rjgogo
Can you give us some hyd. pressure numbers?


Disconnect the FEL hoses and re-connect them. Maybe one is not quite engaged..

Thanks, I don't have a gauge and I have unconnected the hoses and reconnected them as the first thing I tried. No difference.

 

[Ingerdeere]

rjgogo, sorry about your troubles. Do you have power beyond for 3 pt attachments or backhoe?

 

[Tx Jim]

A hyd gauge with hose cost $50 or less. I'll bet a dealer won't start the engine of service truck in order to make a service call for $50

 

[rjgogo]

Thanks, No power beyond or Aux Hydraulics.

As far as the gauge goes. I don't have anywhere near to get one but can't seem to find the right one on Amazon. That said, I don't think there is any pressure as nothing moves except the forward and reverse. The bucket and 3 point do nothing.

 

[KennyG]

This is not sounding good. It seems something has come loose and is blocking the hydraulic system. If both the 3 point and loader are not functional, it must be in the system before the valves.

 

[rjgogo]

This is not sounding good. It seems something has come loose and is blocking the hydraulic system. If both the 3 point and loader are not functional, it must be in the system before the valves.

Thanks, Well that does not leave much to check, just the other side of the pump. I'll pull off some of the pipes tonight and see if I see anything, I think one of the hollow bolts has a screen in it. I hope that is it. It drives forward and back.

 

[beenthere]

I just bought the parts and made up my gauge..

 

[rjgogo]

Thanks for all the replies. I have been off and on this as I have had other things. finally had some time. Took off the SVC and opened everything up and cleaned everything while I was waiting for the gauge to arrive. finally got the gauge and tested at the ports first valves from the pump. No measurable pressure. Tested it on the connecter as shown in the manual and nothing there. Also tested on the PTO ports and nothing there either. the manual says to get it up to operating temp but I am hesitant to do that with the huge whine coming out of the pump. It seems that there is not pressure coming from the pump. Hoses are fine.

One thing I did notice is that when I drained the oil to check the filters there was little to no oil in the spin on filter. also took out the pipe plug next to the filter base and nothing came out. Also, the drive no longer works.

Seems that all points to the pump but i don't see anything wrong with it when I took it apart.

Im pretty lost right now. I really can't take it anywhere since there is an implement on the three point, and the loader is on as well. can't lift the loader or the three point, so I don't know how to get it anywhere. I have a winch on my trailer so maybe if I can get the implement off the back I could drag it on the trailer.