dk-65 hydraulics real jerky

[paulssigns]

both loader and backhoe real jerky.just purchased,changed fluid and filters seems to be sucking air.fluid is foamy.any ideas?

 

[ritcheyvs]

Check fluid level on dip stick. Check hydro filter on tight with good seal. Check quick-disconnect fittings.

 

[paulssigns]

fluid on dipstick good,filters tight.i;ll check quick connects.thanks

 

[k0ua]

Sounds like an air leak from the suction side of the hydraulic pump. Where it sucks fluid from the tank to the pump it is also sucking in air. If this was a Kubota L3400 I could tell you exactly where to look. Since it is not, I cannot tell you where to look, but this is what I think is wrong with it. it is sucking air.

James K0UA

 

[Coyote machine]

Fluid should not be foaming. What fluid did you use, how much did you use? OEM filters? Hours on tractor? What year tractor? Give us more basic info. DID you do the filter and oil changes?

 

[paulssigns]

tractor 2006,260 hours did it when i purchased,i changed filters ,kioti filters

 

[ritcheyvs]

I don't have a manual for your tractor. But looking at similar schematics, it appears that the hydro pumps suck the oil through the filter. Hence, any air leak at the filter (bad gasket, debris, etc) could produce your symptoms. Might be worth checking. Other potential leak points are under positive pressure so less likely to suck air.

 

[paulssigns]

fixed it.the tube between the rear and the filter housing has an o ring on each side the top one near the filters was bad.2 new o rings fixed it.

 

[k0ua]

fixed it.the tube between the rear and the filter housing has an o ring on each side the top one near the filters was bad.2 new o rings fixed it.

Thank you for posting back the results.. I figured an air leak.

 

[Coyote machine]

fixed it.the tube between the rear and the filter housing has an o ring on each side the top one near the filters was bad.2 new o rings fixed it.

Great! How did you find the location of the problem? This could be useful info for others, too.