LS SAYS A REGEN EVERY 2 HOURS IS NORMAL (Update) 600hrs, 50 regens

[JCoastie]

I am having this same problem with the same tractor but mine has 50hrs on it and has regenerated at 13.7, 15.5, 18.5, 22.6, 25.5, 31.2, 33.8, 39.2, 42.1 & 50.1.

Has the thermostat fixed your problem?

they didn't change the thermostat, said it was getting hot enough.
We've had almost 2 months here where it rained every day, so I haven't gotten a lot of tractor use lately.
I picked up the tractor from the dealer with 369 hours on it after they replaced the EGR valve and ran it through a few regen cycles at the dealership. I had a regen yesterday at 381 hours, so 12 hours between. I'm looking for one more quick regen cycle before I send it back again.

 

[TractoringJB]

After the dealership did a reset @51hrs, I am at 75hrs now and it hasn’t regenerated.

 

[JCoastie]

I have been updating the original post with regen/hours, the EGR valve did not fix the issue.
Just under 400 hours and at least 32 regens.

I just picked up the tractor yesterday, the dealership replaced all 3 fuel injectors.

LS service has recommended replacing the injectors. They have had a few cases lately where the injectors had carbon build up which caused poor performance during regen.

The injectors have been replaced, they did have carbon build on them, one was really bad. The filter showed clean, so we did not clean it. A forced regen was performed successfully.

 

[JCoastie]

Can't seem to edit my original post any longer to update the regen hours, but I have had 2 more since they changed the injectors at 397 hours and forced a regen in the shop:

412
426

 

[Cycledude]

What kind of work were you doing during those 14 hours ?

 

[DavidL61]

I feel your pain. I’m having the same issue with my Yanmar YT347. Will regen between 5 and 10 hours. During the fall and winter it was averaging 20. They keep saying I’m not putting enough load on it. Well no one has told me how to put more load on it. They also said the tractor is to big for what I’m using it for.There is no way I would be able to use a smaller tractor. Lifting 2k round bales, brush hogging, moving fire wood. Lifting and moving 2500 lb logs with the grapple. Just dug 45 post holes with the backhoe and box blade work.

At least Yanmar has been working with me on the issue.

 

[5030]

if my Kubota's ever regened, I think I'd sell them...lol

 

[sd455dan]

Not all New Hollands are made by LS



True, LS makes only makes the smaller tractors for New Holland
New Holland still makes the bigger machines, not sure what the cut off line is.

At one point even my Rhino 554 was a New Holland (in a way)
since New Holland had a joint venture with STEC (Shanghai tractor engine company) when i did engine work all the boxes were SNH Shanghai New Holland parts. A lot of New Hollands were FIAT based tractors and before that Ford as well as Shibaura

Would like to own a newer cabbed tractor for winter snowblowing but No way do I want to put up with a regen every few hours.

 

[sd455dan]

I feel your pain. I’m having the same issue with my Yanmar YT347. Will regen between 5 and 10 hours. During the fall and winter it was averaging 20. They keep saying I’m not putting enough load on it. Well no one has told me how to put more load on it. They also said the tractor is to big for what I’m using it for.There is no way I would be able to use a smaller tractor. Lifting 2k round bales, brush hogging, moving fire wood. Lifting and moving 2500 lb logs with the grapple. Just dug 45 post holes with the backhoe and box blade work.

At least Yanmar has been working with me on the issue.

Wow that is disappointing to hear I thought Yanmar had the regen thing nailed.

 

[5030]

Wow that is disappointing to hear I thought Yanmar had the regen thing nailed.

Just wait until the T5 mandates roll in....

 

[tradosaurus]

Can't seem to edit my original post any longer to update the regen hours, but I have had 2 more since they changed the injectors at 397 hours and forced a regen in the shop:

412
426

Have you looked into a way to disable the regen?

 

[JCoastie]

Have you looked into a way to disable the regen?

Just the thread about it here in this forum. The emissions portion of the tractor is still under warranty, so I won't delete that (if/when possible) until it's out of warranty.

 

[JCoastie]

What kind of work were you doing during those 14 hours ?

Mostly loader and landscape rake work @~2k rpm with a little stump grinding in there @~2.4k rpm.

 

[RobertEH]

I have an MT235HE that I bought new last year, so not the exact same as you but similar.

When I read this thread I decided to track the tractor initiated regenerations. I have averaged 35 hours between regens so far. My regenerations have been:
26 (1st ReGen)

• approx. hour range as I did not write it down when it happened; +/- a couple hours though
• In the 0-26 hour range, I was new to tractoring so I was babying the RPM and keeping it to idle as much as possible (probably not a good idea now that I know a little more)

83.6 (57.6 since prior regen)

• In the 26-83 hour range, I was running a snow blower at PTO speeds most of that time.

114.1 (30.5 since prior regen)

• in the 83-114 hour range, I was operating a box Blade on a bit of a side hill so I was creeping the full time to ensure I did not find a hole or rock that would cause the tractor to roll.

139.1 (25 since prior regen)

• In the 114-139 hour range, I was operating a Post hole digger at low speeds so I was not surprised to see the regen be initiated.

The Regen has been only mildly irritating - after talking with the dealership after the first one, I just keep working and keep the RPMs high until it finishes. If the cycle were every 5-10 hours that would be very irritating.

 

[Cycledude]

Have never shut mine down for regen, if and when a regen does start I have always been able to find some work to do until it’s finished, so far with only 300 hours it usually regens pretty close to the time it’s supposed to, i usually write down when it regenerates So I have a record to look at if it ever does become a problem

 

[Damon Steinke]

I have about 68 hours on my MT573 and it's regened once right at 50 hours.

 

[Williy]

Could it be thermostat is not hot enough?
Sensor bad or needs cleaning?

willy

 

[JCoastie]

dealer checked the thermostat and operating temp, also changed the sensor which I believe checks the pressure within the DPF, no change.

 

[2manyrocks]

Is it part of the manufacturers programming to force tractors into limp mode when the regen process isn’t followed or goes wrong for some reason? Why would they essentially program the engine to be disabled? Or have to be reset at the dealer?

 

[JCoastie]

Yes, if you inhibit the regens for too long and/or the DPF pressure builds up to a certain level, the RPM of the engine gets reduces and has to be reset by the dealership.
Had another regen today while stump grinding, 9 hours from the last one. Including the one the dealer did during the injector swap, I've had 4 regens in 38 hours. Here is mu current totals, and as before, I might have missed some, and I wasn't really keeping track before 100hrs until I realized there was a problem.

Regen time on hour meter, all regens completed successfully after ~15 minutes:

4 (ran by dealer due to error code, day after I brought it home)
101
106
112
115 (Dealership replaced DPF Sensor, removed and cleaned DPF)
118
119
148
165
175
187
191
197
213
224
234
250
254 (Dealership replaced ECU and DPF sensor. Invoice notes “REGEN OCCURRING TO OFTEN WITH NO SOOT LOAD”)
259 (In Dealership for service, ran diagnostic, nothing significant noted)
262
269
276
300
307
328
343
355
363
369 (Dealership replaced EGR Valve and ran regen cycle)
381
389
397 (Dealership replaced all 3 injectors and ran regen cycle)
412
426
435