DK5310SE Irregular Chirping Sound From Power Steering Unit

[Venturabass]

Have a DK5310SE I bought in spring 2022. Since new I’ve always noticed an irregular chirping sound of sorts. Doesn’t always happen. Sometimes will happen a lot. Sometimes not as much. Sometimes it’ll happen right at startup at idle and other times only when I run the rpms up to go do work.

The pattern is really irregular. “Chirp, chirp….chirp… chirp, chirp….”. I’ve talked to the dealer about it and they told me they hear this sound often from new. Kioti knows about it. But there is no fix or any history of there being a problem.

One day when it was happening I tried hard to locate where it was coming from. It’s not the engine. It turned out it’s coming from the power steering unit just below the steering wheel. I took the cover off and each time it happens I can feel a mild vibration. But there are no loose external parts. Also operating the steering wheel does not cause it and never has. It happens just sitting still.

Anyone hear this on their machine and anyone know what it is?

 

[Zork]

Have a DK5310SE I bought in spring 2022. Since new I’ve always noticed an irregular chirping sound of sorts. Doesn’t always happen. Sometimes will happen a lot. Sometimes not as much. Sometimes it’ll happen right at startup at idle and other times only when I run the rpms up to go do work.

The pattern is really irregular. “Chirp, chirp….chirp… chirp, chirp….”. I’ve talked to the dealer about it and they told me they hear this sound often from new. Kioti knows about it. But there is no fix or any history of there being a problem.

One day when it was happening I tried hard to locate where it was coming from. It’s not the engine. It turned out it’s coming from the power steering unit just below the steering wheel. I took the cover off and each time it happens I can feel a mild vibration. But there are no loose external parts. Also operating the steering wheel does not cause it and never has. It happens just sitting still.

Anyone hear this on their machine and anyone know what it is?

Could it be air?

 

[Venturabass]

That’s a great point. And the behavior is sort of like that. Like wire getting by. However don’t know how that would be possible? The pump is a tandem pump like almost all on market with one main feed from the sump. Hydraulic fluid is full for sure and no issues with the main pump or circuit….?

 

[toxicjeeper]

I notice a chirp on my 2022 ns5310 as well every once in a while..I never really paided much attention to it and I can't see it creating any problems

 

[Billrog]

Slipping fan belt ?

 

[gumshu]

My 4720SE is brand new. I started using it today for the first time. When it reached the 3hr mark, I heard the same chirping noise. I looked all over and it is coming from the steering wheel box somewhere. I was hoping someone would have figured this out by now. I’ll call my dealer on Monday. It’s strange. I had a CT 35 Bobcat (Kioti) back in 2009 and never had an issue with it.

This 4720SE seems somewhat problematic. Aside from this noise that developed today, I’m not able to slowly lift my 3pt hitch. When I attempt to do so, it jerks significantly as it rises. When I raise it quickly, no problem.

 

[Venturabass]

I can report it's not the fan belt slipping. Though my dealer said that is a common occurrence from the factory. I just did my 50 hour and ended up adjust the belt tension A LOT! Still makes the sound though.

As far as the jerky 3ph lift, yes mine behaves exactly the same.

 

[KiotiKyle]

I believe I know the sound you're referring to, as my DK4710 started doing that around 37 hrs. It's very common amongst recent model DKs in the Kioti Facebook group, but there is no solution. The common belief is that it's hydraulic cavitation. I just hope it doesn't cause hydraulic pumps to go out.

I've just chosen to ignore it because many have called their dealers and Kioti and none have offered a solution beyond "just keep using it."

 

[Venturabass]

I believe I know the sound you're referring to, as my DK4710 started doing that around 37 hrs. It's very common amongst recent model DKs in the Kioti Facebook group, but there is no solution. The common belief is that it's hydraulic cavitation. I just hope it doesn't cause hydraulic pumps to go out.

I've just chosen to ignore it because many have called their dealers and Kioti and none have offered a solution beyond "just keep using it."

Interesting! Yes, it reminds me of a cavitation issue, but why? If it is its at the power steering unit and not the hydraulic pump. Cavitation is supposed to be extremely damaging....

 

[KiotiKyle]

Interesting! Yes, it reminds me of a cavitation issue, but why? If it is its at the power steering unit and not the hydraulic pump. Cavitation is supposed to be extremely damaging....

I wish I knew. It doesn't sound like anyone does. There's a dude in the Kioti Tractors USA Facebook group that wigs out about it a lot. I guess he worked on pumps for a living (can't remember what type of pump) and he is really worried about it ever since his started doing it.

It really is quite the mystery. I just hope if it is something serious they recall it and fix it without charging us. It seems to be an issue predominantly in 2021 or newer DK models.