NX6010 hydro transmission issues

[kapper]

 

[kapper]

Hydrostat slow response, and steering "wonky" too.. Measure charge pump pressure. maybe obstruction in the path. or the steering section of the main pump. Modulator valve, or the filter .. something. But the first thing I would do is measure for that 356 lbs of pressure.

Odd that this happens after the oil thins out after use..

Is 'wonky' a real word in manual? Funny, did you read the warning labels inside the cab where it talks about if you are entering a rice patty, to do something weird when getting in/out of the tractor?

 

[MinnesotaEric]

View attachment 418090

It should be in the #2 position but if you snap a photo of the hose leading to your rear hydraulic remotes (easy to shutterbug), we'll know if they tapped the right line as well because a new line will likely not have the giant banjo fitting or factory paint all over it.

Making an assumption of what I cannot see in your photo, it looks like they tapped into the right line.

For reference, from the factory, it looks like this.

 

[kapper]

OK, MY BAD!! DIDN'T LOOK CLOSE ENOUGH. OK, THIS IS A PIC OF THE REAR OF THAT BOX, FACING THE REAR OF THE TRACTOR. ONE OF THE LINES GOES INTO THE REAR OF THE BOX, AND THE OTHER LINE I FOLLOWED TO THE REAR HYDRAULIC BOX FOR THE 2 REAR SCVS.... Does this make any more sense?

 

[IslandTractor]

Yeah, I know it was a weak example, but if it were much more sloppy and uphill it could have been I was not running the pto or course, so I was at normal rpm, somewhere between 1500 - 2000. Going to try and take a video now of the valve they installed.

I think the point DK35Vince and I were making is that traction might be an issue in the stream but virtually any tractor has enough horsepower to traverse that area. Obviously the bush hogging was very light as well and it didn't sound like you increased the rpms for that either.

One downside of having 60hp is that to run a bush hog efficiently it really does need to be near PTO speed to get the best cut. Not an issue for the light stuff you were cutting but lush grass will look better mowed with blades turning faster. I usually cut pastures with a flail mower and the flail is happy to cut at 2000rpm but the cut is cleaner if I run closer to PTO speed. I don't like the noise so I tolerate a less than perfect cut especially since I am just knocking stuff down to make sure the fields don't get overgrown.

 

[MinnesotaEric]

View attachment 418107 OK, MY BAD!! DIDN'T LOOK CLOSE ENOUGH. OK, THIS IS A PIC OF THE REAR OF THAT BOX, FACING THE REAR OF THE TRACTOR. ONE OF THE LINES GOES INTO THE REAR OF THE BOX, AND THE OTHER LINE I FOLLOWED TO THE REAR HYDRAULIC BOX FOR THE 2 REAR SCVS.... Does this make any more sense?

What you're calling the #2 line must go to the P port on the silver subplate. The T port on the silver subplate must go back to your three point and rear remotes.

Anyway, they tapped into the right hose (which would have been a real blunder but could happen if they tapped into hose #1). Maybe it is just like the tech says: a restriction in the HST filter.

 

[MinnesotaEric]

While we are talking capacities, I took the liberty to look up in the manual, do the conversion, and record my notes so that we have a definitive capacity.

The 9.9 gpm number I used before is a little too high. The HST models secondary pump flows slightly more than the gear 12cc/rev rather than 10cc/rev presumably to power the HST. Not a whole lot of parasitic loss whatsoever on the pump side.

Anyway, here is a screenshot of my manual.

 

[kapper]

Here is my latest video of the new Kioti. I am still having the same delay in the forward/reverse pedals, which is very frustrating. The dealer put the larger valve on for the 3rd function and a different filter (70 micron) for the hydraulic system. There was no change in the operation after these 2 'fixes.' It responds immediately when it is cold, but as soon as it gets to full operating temperature, then it starts it's usual slipping/delayed response in the pedals.

I was using it in low gear and pushed the forward pedal (gradually, mind you) all the way to the floor, and then after it hit the floor it took another half second to full second before it started moving forward.

This is a very capable tractor, but I am getting really frustrated with this hydro. I have asked the dealer to contact Kioti HQ engineering for some guidance. Perhaps this is just the design (flaw) that I will have to live with???? That would really suck....

Am I the only one here?? Maybe my expectations are too high? Any other NX hydro users having the same experience????? And if it is designed to have that 'pause' when you hit the pedals, then why does it not do it when it is cold??? Thanks!!

 

[IslandTractor]

Has the dealer operated the tractor? Have you operated another NX for comparison? Tough to determine if this is a problem or normal otherwise.

 

[countrybumpkin]

Hate to hear that your still having issues, was thinking yesterday if you had found anything out. There are a couple of other 6010 owners here that I know of and none have had the complaint of a long delay after warn up. I'd really be curious as to what oil pressure and temp was from cold to warm up when you start noticing the delay.