DPF issue

[marchanna]

Agreed. You have to let that regen complete and don’t delay. Even if your tractor won’t do a preventative shutdown, a DPF that starts to get plugged will cause increased back pressure and result in more of that soot getting past the rings and into your oil. Then you’re going to get a seized engine.

All that aside, if you have an EGR you have to be diligent on your oil changes and use a good synthetic oil because they have better ability to hold the soot in suspension. Poor soot holding capability = engine sludge. Engine sludge = blocked oil passages.

 

[ovrszd]

When the regeneration light comes on.. I park the tractor and let it do a complete cycle...
Park the tractor.. let it idle... Start the regeneration and wait... It will rev up and do it's thing.. It will idle down when it is done..
My last one took over a half hour...
You are asking for trouble if you don't let it do a complete cycle.

Yep, try to not interrupt.

In your case, if you were doing PTO work, you'd be better off to continue that work during regen. The heat generated would benefit the regen and shorten the time it takes. The computer speeds up your engine rpm in an attempt to create that heat.

 

[marchanna]

Depending on the particular setup, the regen works by injecting raw fuel into the exhaust. Sometimes this is achieved with the injectors during the exhaust stroke, and sometimes by a separate fuel circuit directly into the DPF. The fuel then burns in the DPF element to burn out the particulate. The engine and exhaust have to be hot for this to work, but other than that, the rpm of the engine only serves to ensure enough gas flow during the regen. You need to have you engine up to temperature before you start the regen for it to work properly, but there’s no reason why you can’t continue working while it’s doing its regen; the extra fuel used when the engine is under load is of no consequence to the process.

As an additional note, if you use biodiesel or blends thereof, you will need to do more frequent regens because of the inherent increase in soot production with biodiesel. The benefit of the biodiesel, is that your fuel system will be cleaner and better lubricated.

 

[YLee Kioti]

Yep, try to not interrupt.

In your case, if you were doing PTO work, you'd be better off to continue that work during regen. The heat generated would benefit the regen and shorten the time it takes. The computer speeds up your engine rpm in an attempt to create that heat.

That's exactly what I have experienced. At around 40 hours or so the regen kicked in.
Kept on shredding and merely slowed down a hair in lo-range.
Note for us operators. it does not take long to learn our machines and how 'normal' sounds.
No one complained at how the dash is washed out and impossible to see most any indicator lights when lit.
So with that in mind, if I hear a slight change in pitch and/ or smell a change in exhaust it my que to use hand over the dash. Yup gots a red light.
So just let it cycle and keep on working.
On the Ck it came on while moving and grading dirt. So the loader was not filled up to max and just slowed down a bit and the cycle was over shortly.
New normal in life, operators that are one with machine grass-hoppah will know this.

So I have a Bosch OBDII scanner. Used it on the CK. Did not work on the CK.
So what scanners are you folks using to hook up with your machine and are you getting any results?

 

[countrybumpkin]

I used a friends that he bought from harbor freight, it wouldn’t show what the code was, but it did show a code pending and cleared it.

 

[YLee Kioti]

HF scanner amazing !

 

[hillwood]

Has anyone tried one of the smartphone dongles for ODB2... There's a lot of them out there.. Just wondering if they would work.

 

[marchanna]

Never tried one, but I assume they would be no more capable than the wired ones.

 

[countrybumpkin]

A few guys have on LS tractors and I believe Mahindra with good results.

One good thing about them is a good app is kept up to date with the ever changing protocols.

 

[finn1]

My cel light came on and power reduced at 36 hours. I restarted the engine and ran it at 2600 rpm for about fifteen minutes. It did a partial regen.

Later in the day I stopped by the dealer to discuss the event. He advised me of the proper procedure, ie warm engine, less than 5% throttle, parking brake set, press and hold regen button for a few seconds.... worked like a charm. I didn’t time it, but would estimate it took ten or at most, fifteen minutes.

The dealer told me he had one customer at 115 hours, and no regen yet. He confirmed the claim with his laptop service tool.

He also said the owners who report issues have one thing in common: they baby their tractors and idle around rather than letting it work at higher speed (and load).

I worked in Diesel R&D for 35 years. We did some projects with biodiesel several years ago, and, in multiple projects, found that b10 increases the DPF passive regeneration rates, meaning longer run time between active / forced regeneration cycles.