First regen at 21 hours

[3Lfarms]

The two lights are actually independent. The one light tells you its regenerating, the other is the light that tells you the exhaust is hot and it comes on after the first.

I don’t think idling is necessarily bad. If the engine is thoroughly warmed up, bringing it down to slow idle for a few minutes doesn’t seem to soot up the dpf.

 

[Jcoon]

Mine so far have been at 40, 57, and 72 hours. Mine idles probably 50 percent of the time. It smells when regening of coarse, but I’m able to operate through the regen without a problem, while regening though I do try to keep the RPMs above 2000 RPMs.

 

[robertsa]

So where's the clean air benefit? Sure the Tier IV engines produce less contaminants, but we have to run them at much higher RPMs and burn more fuel.

They produce less pollution per gallon of fuel burned, but we burn more gallons to achieve that goal. Then there's the added pollution from extraction the crude oil from the ground, the refineries to produce the diesel fuel and the transportation to provide that extra fuel burned to the distributors and finally to the end consumer. :confused3:

You're not confused, you are just using common sense which is something politicians and bean counters know nothing about.

Reminds me of an obit someone sent me below.

No, not understanding how something works is not the same thing as common sense. One of the issues you're running into is that you are vastly oversimplifying or omitting how the emissions system works, what the unit measurement is of the emissions reduction (measured over fixed time, not gallons of fuel), how it's tested, and the impact to fuel consumption.

The really cool thing about Tier 4 is that with minimal increase in cost, these manufacturer's are finding new, better ways to reduce these harmful gasses and some of these methods actually increase fuel economy. People are wired to dislike change so I understand the grumbling, but when you start comparing benefits and drawbacks to emissions regulations, it is overwhelmingly beneficial to our pocketbooks over the life of the machine, our health, and the environment.

 

[strantor]

The two lights are actually independent. The one light tells you its regenerating, the other is the light that tells you the exhaust is hot and it comes on after the first.

I don稚 think idling is necessarily bad. If the engine is thoroughly warmed up, bringing it down to slow idle for a few minutes doesn稚 seem to soot up the dpf.

Your explanation makes sense but I am curious where you learned the meaning of the "regen with thermometer" indicator. The Manual just shows "regenerating" and "regen inhibited" indicators. This "regen with thermometer" indicator is a 3rd indicator not shown or described in the manual.



So now I'm curious if I even went into regen or not. I smelled the smell but I never saw the the actual regen indicator turn on. I've had the engine up to this temp plenty of times before and never saw the "regen with thermometer" indicator. Also never smelled the smell (this is my first tractor, first turbo engine, and first diesel engine; I'm not sure that what I smelled was the smell of regen).

 

[Doofy]

I have also noticed that ULSD has a different smell itself. Not as nasty smelling or as strong smelling as the old diesel.

 

[OverandOut]

I have 23hrs on my 6168cps and have not had a regen yet. Dealer said it would be around the 30hr mark.

 

[jdom84]

Maybe the reason for early regen is caused by how many times you start the tractor up.

I have noticed with my little xj the only time it has any visible particulates coming out of the exhaust is on startup but once its up to temp, nothing... even under heavy load when using the loader or box blade and almost stalling the engine.

 

[lostcreekranch]

I just happened to look at the hour meter on my new XR4155HC when it turned to exactly 50.0 hours. At same time the first “regen” light came on. This light indicates that the diesel particulate filter (DPF) is being brought up to temperature. The second indicator comes on when the DPF is at full “regen” temperature and stays on during the full cycle which was a bit over 20 minutes, as I recall. This was my first “regen” cycle.

My previous XR4046HC would “regen” on about 5 hour intervals.

I run at 1500 rpm plus at all times, and 2400 rpm when mowing.

The only time I “idle” is for a couple of minutes at startup, a bit longer when it’s cold.

A “regen” cycle shouldn’t effect your operation unless you’re doing something in tall dry grass. In that case get out of that area until the cycle is over.

 

[ozarkxr3135]

Yeah... my XR3135H did its first Regen around the same time. I also thought something broke when the revs went up and it began to smell "Hot". There was so much glare on the dash that I could not see the Regen Icons without shading them with my hand. It has regen'd twice in 54 hours.

 

[Oldoak]

No, not understanding how something works is not the same thing as common sense. One of the issues you're running into is that you are vastly oversimplifying or omitting how the emissions system works, what the unit measurement is of the emissions reduction (measured over fixed time, not gallons of fuel), how it's tested, and the impact to fuel consumption.

The really cool thing about Tier 4 is that with minimal increase in cost, these manufacturer's are finding new, better ways to reduce these harmful gasses and some of these methods actually increase fuel economy. People are wired to dislike change so I understand the grumbling, but when you start comparing benefits and drawbacks to emissions regulations, it is overwhelmingly beneficial to our pocketbooks over the life of the machine, our health, and the environment.

I believe you are too narrowly focused. One of the big issues you are ignoring is all the extra pollution produced while pumping crude, refining it, and transporting it, just to meet the exhaust emission standards of Tier 4 which must be run at higher RPMs consumer more fuel than was necessary than without the mandated Tier 4 standards. The end result doesn't always justify the means.............

One example of wasted fuel: Many of us here on TBN know it doesn't take near 2200+/- engine RPMs to run our backhoes and would prefer not to if it wasn't for the Tier 4 exhaust requirements.