Kioti CK3510HST 3pt won't raise.

[goodyank]

Hello and thank you in advance. The 3pt hitch on my 2021 CK3510HST will not raise. All hydraulic levers are in the correct position, the FEL operates smooth and correct and fluid level is correct. There is no pressure holding the arms down. They will raise after operating the tractor for awhile (don't know specifics as I only noticed they were up after some time). Here's the the kicker, when I shut off the key they will lurch up. I'm thinking it's an electrical problem but with zero service data I have no idea where to start.

 

[grsthegreat]

Have you checked the flow control knob under the seat. It twists either right or left

 

[Lineman North Florida]

Have you checked the flow control knob under the seat. It twists either right or left

View attachment 4273397

I will go out on a limb and say that for about 90% of owners with a new tractor that is the problem when the 3 point hitch arms won't raise.

 

[ptsg]

That knob only adjusts the speed the 3 pt drops or if closed all the way, prevents the 3 pt from lowering entirely. It will still let it raise at full speed in any of the positions of the knob.

I suspect the issue is on of the remotes stuck in detent mode.

And for sanity sake. Note the check valve on the down speed control valve (that knob under the seat). This check valve lets the fluid pass without any restriction to raise the 3 pt but will prevent it from lowering by forcing the fluid to go through the flow control valve.

 

[grsthegreat]

That knob only adjusts the speed the 3 pt drops or if closed all the way, prevents the 3 pt from lowering entirely. It will still let it raise at full speed in any of the positions of the knob.

I suspect the issue is on of the remotes stuck in detent mode.

And for sanity sake. Note the check valve on the down speed control valve (that knob under the seat). This check valve lets the fluid pass without any restriction to raise the 3 pt but will prevent it from lowering by forcing the fluid to go through the flow control valve.

View attachment 4273550

Good points… i didnt think about a rear remote set in detent position. That has happened to me a few times.

 

[goodyank]

These are all good ideas and I thank you for the information. I have checked out the hydraulic system and everything appears correct. I think what everyone is overlooking is that the arms raise when the ignition is shut off. Once the arms are up they do not bleed down.

 

[ptsg]

These are all good ideas and I thank you for the information. I have checked out the hydraulic system and everything appears correct. I think what everyone is overlooking is that the arms raise when the ignition is shut off. Once the arms are up they do not bleed down.

Does this tractor have a third function and/or a backhoe?

 

[deezler]

The 3-pt arms raise when the engine is OFF?!?

 

[goodyank]

The 3-pt arms raise when the engine is OFF?!?

View attachment 4273646

They raise as soon as the key is cut off. It's not all the way but 4-6 inches. They will do it every time. I suspect that there is a solenoid controlled valve that is not working properly. Like I said, without any service data any troubleshooting would be merely poke and hope.

 

[goodyank]

Does this tractor have a third function and/or a backhoe?

Yes and the levers are in neutral.