NX4510 Noisy HST---Normal?

[justman777]

All, have a question for NX owners. Is your HST noisy like mine? On my last tractor (JD 2305), the HST was dead silent. The only noise I got from it was a whine under load. In my NX4510, I get what sounds like light chugs, gurgling, etc when at idle. Tech at the dealer said they all make noises like that, but I wanted some corroboration from the Kioti community. I know comparing my last tractor to the NX is like apples and oranges, but I've not had any other tractor, and with my last tractor not making any noise and this one chugging and gurgling.....well.....it just sounds wrong to me.

If anyone can pass me some feedback on if their NX HSTs make similar chugging/gurgling noises at idle, I'd appreciate it.

Thanks!

 

[k0ua]

All, have a question for NX owners. Is your HST noisy like mine? On my last tractor (JD 2305), the HST was dead silent. The only noise I got from it was a whine under load. In my NX4510, I get what sounds like light chugs, gurgling, etc when at idle. Tech at the dealer said they all make noises like that, but I wanted some corroboration from the Kioti community. I know comparing my last tractor to the NX is like apples and oranges, but I've not had any other tractor, and with my last tractor not making any noise and this one chugging and gurgling.....well.....it just sounds wrong to me.

If anyone can pass me some feedback on if their NX HSTs make similar chugging/gurgling noises at idle, I'd appreciate it.

Thanks!

Don't have an NX but my Kioti DK35SE doesn't make any noises like that. Like you it "sounds" suspicious to me. First thing I would want to know is the hydraulic fluid full up on the dipstick on level ground with all implements lowered? Is the radiator fluid topped up? Sometimes hard to tell where noise is coming from in a running vehicle.

 

[countrybumpkin]

Another member here had a issue with his sucking air and causing issues.

 

[YLee Kioti]

mine has a low noise of what I surmise must be the hyd. pump at idle but it is not loud or annoying above the engine noise.

If possible record it and play it back for dealer if possible. Better then trailering it over, unless that is the only option.
Did not mention hours on it. Has the hyd. fluid been changed?
I replaced mine at 200 hours with NAPA synthetic fluid from Coastal. Must be their local fluid vendor. It did help improve cold start up response and smooth out overall performance of implements and FEL.
Not sure if this was of any help but it's all I gots. :drink:

 

[k0ua]

Another member here had a issue with his sucking air and causing issues.

yep, sucking air is just like a sucking chest wound in a person. NOT good.

 

[Threepoint]

[snip]In my NX4510, I get what sounds like light chugs, gurgling, etc when at idle.[snip

Hmm. My NX doesn't make sounds like that at idle, in neutral or any of the three ranges. I'm only aware of the sound of the engine. But different folks might describe the same sounds differently. Has the tech actually listened to the tractor, or is he going on your description? Also, when you say at idle, I assume the tractor is standing still (i.e., no HST creep). But is this with the range shifter in low, mid or high? Or all three ranges? Does it also do this in neutral as well?

Can you perhaps visit the dealer and listen to other NXs in the yard with the tech?

 

[DieselBound]

My B7800 really whines. I was pretty used to it. But when I got my NX I've noticed that it's really very quiet.

Go to the dealer's and ask to drive one of theirs.

 

[MichiganIron]

All, have a question for NX owners. Is your HST noisy like mine? On my last tractor (JD 2305), the HST was dead silent. The only noise I got from it was a whine under load. In my NX4510, I get what sounds like light chugs, gurgling, etc when at idle. Tech at the dealer said they all make noises like that, but I wanted some corroboration from the Kioti community. I know comparing my last tractor to the NX is like apples and oranges, but I've not had any other tractor, and with my last tractor not making any noise and this one chugging and gurgling.....well.....it just sounds wrong to me.

If anyone can pass me some feedback on if their NX HSTs make similar chugging/gurgling noises at idle, I'd appreciate it.

Thanks!

We suggest you check the little air breather on the back of the transmission case. We have seen this air breather get plugged up just from dust / mud wasps / ect. If the air breather is plugged, the oil can cavitate in the transmission casing foaming in the oil and "jittery" hydraulics....makes it feel like air in the hydraulic system. If you pull the dipstick and the trans case seems pressurized, probably the little are breather on the top of the trans case near the top link mount bracket. This little breather can cause all kinds of hydraulic system issues. Make sure the transmission is breathing properly.

Hope this helps...

 

[NetbyTractor]

All, have a question for NX owners. Is your HST noisy like mine? On my last tractor (JD 2305), the HST was dead silent. The only noise I got from it was a whine under load. In my NX4510, I get what sounds like light chugs, gurgling, etc when at idle. Tech at the dealer said they all make noises like that, but I wanted some corroboration from the Kioti community. I know comparing my last tractor to the NX is like apples and oranges, but I've not had any other tractor, and with my last tractor not making any noise and this one chugging and gurgling.....well.....it just sounds wrong to me.

If anyone can pass me some feedback on if their NX HSTs make similar chugging/gurgling noises at idle, I'd appreciate it.

Thanks!

My NX only makes the normal "whine" that you mentioned - not any of the other sounds.

 

[justman777]

We suggest you check the little air breather on the back of the transmission case. We have seen this air breather get plugged up just from dust / mud wasps / ect. If the air breather is plugged, the oil can cavitate in the transmission casing foaming in the oil and "jittery" hydraulics....makes it feel like air in the hydraulic system. If you pull the dipstick and the trans case seems pressurized, probably the little are breather on the top of the trans case near the top link mount bracket. This little breather can cause all kinds of hydraulic system issues. Make sure the transmission is breathing properly.

Hope this helps...

This is awesome information! I'll check it later to see if it's actually clogged or impeded in any way. I seriously doubt this would be captured in a troubleshooting manual.

Thanks!