Lost my Curl/Dump Function on Loader Kioti DK50SE

liberty2701 · May 11, 2019

I also posted this over in the Kioti forum.

I was moving a lot of loads today and suddenly I lost my curl/dump loader function. The bucket is loose and will flop around. When I operate the joystick left and right I can hear it operate like it is dead heading. I decided to disconnect all hoses from the loader block and check for outlet pressure. On all four I get the correct PSI upon moving the joystick. On the third port from right I get pressure but only if I hold it in that position. As soon as I let go of the joystick it returns to zero PSI. The other ports do not return to zero until I move the joystick in the opposite direction. It seems like a lot of air is in the curl/dump cylinders. My hydraulic fluid is full. I have 700 hrs on the tractor. Is it possible I have a broken both cylinders? Any idea as to my next step?

liberty2701 · May 11, 2019

I just had an idea and swapped the hoses on the loader block. The left right joystick works since the loader raised and lowered. The forward /back stick did not curl or dump. That tells me it is not in the joystick or loader block. It must be broken cylinders or an obstruction? Any ideas?

wdchyd · May 11, 2019

End of one the hyd rods broke off or nut came loose inside or blown piston seals?

Maybe a chunk of piston seal is blocking a port or fitting internally?

Billrog · May 11, 2019

A good chance a piston came off .

liberty2701 · May 13, 2019

I ended up replacing the qd couplers with new Pioneer ag couplers and it fixed the problem. The funny thing is that I replaced all the loader qd couplers 3 months ago with Discount Hydraulic Hose branded couplers. Not sure why they stopped working already but Pioneer are definitely a much higher quality and made in the USA. I am glad it was a simple fix.