Kioti LB2204 hydraulic issues

[AviEst1995]

Hello, I recently purchased a Kioti LB2204 and the hydraulics didn’t work at all. After replacing filter and fluids I can get the rear to go up slowly at higher rpm and it will fall once it’s back to idle speed. I’ve taken apart most everything on the hydraulic system of the tractor and I’m still not anywhere closer to fixing it. I would very much appreciate any help I can get with this problem. I’ve included photos of some of the hydraulic components on the tractor.

Thank you in advance

 

[K5lwq]

The nut I circled is the diverter for when you have a loader installed. Looks like the pin is cut off or missing but it originally would only turn so far and the pin would keep it from going 360 degrees. All the way clockwise was for a loader and counterclockwise for no loader. Does this have a stop or will it just keep turning?

 

[AviEst1995]

It will keep turning freely

 

[K5lwq]

That is a problem. That diverts flow to the power beyond that feeds the loader. Then power beyond goes from the loader to 3pt hitch.

In one position, it would bypass the loader and just feed 3pt. In the other position it would feed the loader. Anything in between would create a split flow that would create a shortage of fluid to both. Here is a picture of mine.

That said, the symptoms sound like a weak pump or stuck relief valve. I believe that model had a 7GPM pump so maybe doing a flow test would tell you something.

To do that you can discount the hose feeding the loader and pump it into a 5 gal bucket with a mark for 1 gal. Then time how long it takes to fill to that line. Set RPM somewhere between 1500 and 2000 for the test.

I hope that helps!

 

[AviEst1995]

Thank you for your help, none of the gauges on my dash seem to be working so I’ll eyeball the rpm. Can you point me to where the relief valve is?

 

[K5lwq]

 

[K5lwq]

You could also adjust the diverter to a good flow rate out of the hose feeding the loader. That would tell you where it should be set. Then mark it so you can easily find that spot.

 

[AviEst1995]

is there going to be another pressure relief valve for the 3 point or is this the only one for the entire system?

 

[K5lwq]

I believe this is also a relief. But I suspect the loader relief.

 

[AviEst1995]

Thank you for all of your help, the hydraulic steering also doesn’t work. Would the diverter in the wrong position cause that as well?