JD 4052 Emission Problem

Neighbors have one; this is pre DEF. They are doctors. They are having a problem with the local JD service folks. Asked me to fix it. I am mechanically proficient with many supporting assets but have never worked on said tractor. Seems the exhaust emissions have gotten to the point where the engine is not coming up to full power....as is mentioned in the owner's manual when clean out hasn't been done and is in need. The red STOP light on the dash is illuminated and service manual owner performance suggestions aren't adequate to clear the problem.

With no special tools, JD type or otherwise, can a layman fix that problem?

Thanks,
Mark

Well you can wait here and see what comes up. If that does not work I would go this route. Since you can likely ..pass the savings on.. to the owner I would start by downloading the service manual from the JD sight in the link. You will need the serial number and I am not sure how to find out if it is a ..heavy duty.. model. The manual at $450 is pretty salty so that may be why the dealer is being difficult, maybe this is the only one in their area and they do not want to purchase the manual. I would guess that the price the dealer pays has to have a pretty good discount. Might have had better luck posting this on the Deere board, but maybe not.
JD manuals

Thanks, we will wait and see. There is a SS cannister attached to the exhaust 10 diameter and 18 long (give or take). I was hoping I will get a reply something like remove the canister, remove the end cap(s), clean out the soot and reinstall sort of thing. Can't be all that complicated since we are talking about soot clogging the exhaust pipe and its all easily accessible.

You can try a parked regen with the switch on the dash. If it has gone too far it will have to be commanded to regen with a scan tool or a lap top with off road and or ag diagnostic capabilities.

I pulled up the parts list and there are 3 filter types in the cannister:
1. Item 8 is a diesel particulation filter.
2. Item 9 is a Catalyst
3. Item 10 has 2 parts to it and they are the soot filters.

I guess one has to disassemble the unit and see which are clogged and determine whether they can be cleaned or have to be replaced. If a screen then it can probably be cleaned. If a complicated filter media then replacement will probably need to be replaced.

This is a final Tier 4 tractor. Have any of you taken a filter apart to clean/replace media?

He said this tractor is a pre-DEF tractor. I am no expert on these new emission system, but I have gleaned a lot of info watching videos of a guy that does repair work in upper California state. From what I know the parked regen is only an option on an engine that utilizes DEF. The injection of the DEF which is a urea product that acts as an oxidizer raises the temperature of the filter surfaces in the exhaust filter to burn away particulates and clean the filter. As pointed out above, this is a pre DEF tractor it does not have the ability to do a self-regeneration. I believe on those tractors that the filter has to be removed an sent to a special vendor to have it cleaned. I also could be way off base. I am pretty certain as stated above this machine cannot do its own regen. I attached a JD video on a parked regen. Right before they get into how to start the regen they show a diagram of the system and it shows a DEF tank.
DPF regen with DEF

We tried the manual owner/operator switch commands outlined in the Owner's Manual to force regen and the tractor wouldn't respond to the commands prior to STOP display on the instrument panel. Do you know if a maintenance action is performed and the filters in the canister are cleaned or replaced that the computer will reset itself upon post start up? I can service the canister but don't have the capability to do any scanning or diagnostic work.

Thanks

Off the www when asked if Tier IV requires DEF fluid:
With Tier 4 Final emissions standards in place, the use of diesel exhaust fluid (DEF) is required for diesel engines over 74 hp. As part of the selective catalytic reduction (SCR) system, DEF has been used in over-the-road trucks and other construction equipment for years.

The 4052 is the 40 size chassis at 52 HP.

I have a 2016 JD 317G compact track loader. I bought it a year ago with about 2500 hours on it. It does not use DEF. Recently it went through some automatic procedure twice apparently trying to burn out the exhaust. Then it indicated the exhaust was restricted. At times it wouldn't reach high RPM's, and lacked power. So I removed the muffler (which is the entire exhaust system) and took it to the only local shop which cleans them. Should know the outcome in a couple of days.

I'd put a can of Seafoam in that diesel fuel and run it. I've been amazed at the things seafoam can clear in the engine world. It certainly wont hurt anything.

My 2019 L3560 Kubota doesn't use DEF.
It has a particle filter which I can monitor on the screen.
When it gets to 100% it goes into a regen mode.
Unless it was on the display screen I would have no clue it in the regen mode. Exhaust is normal. No dark particles or white smoke.

I'm using the tractor when it goes in the regen.
The particle filter is good and hot when it goes in the regen mode.
I keep the RPM's minimum 2K.

In about 10 minutes or less, the screen shows regen is over and I have 0% showing on the screen.

That's all I know about regen on a 2019 Kubota.

I am a long time user if SF in most of my engines. As you said it won't hurt and usually does make a difference in problem engines. Thanks

Well I had all the parts (filter elements in the canister in the exhaust line containing the exhaust filtration) ID'd and was going to call JD this AM to check on price and availability. Got an email from neighbor and he said that he was able to get an appointment with the farm visiting JD tech. He said that had he known I wanted to fix it he would have let me do it. Maybe it worked out for the best. Thanks for the replies.

You are at the point that NC farmer has described- you now need a diagnostic scan tool from the dealer. I think the owner has ignored the warning light and failed to do the parked regen when he should have. Once it is too late, the only way to do a forced regen is with their laptop diagnostic tool.
A normal regen is done automatically by the engine's ECM as needed, as long as running conditions are met-high rpms and working hard-idling won't do it. A manual regen is done by the operator when the dash light indicates the need to; it is also called a parked regen because you must park the tractor with the exhaust away from anything flammable, and the ECM must recognize that it is in neutral, and the park brake is applied-then you hold the switch-maybe 3 or 4 seconds- until the rpms increase- and then you wait until it is complete- and the rpms drop. Leave it idle-the exhaust will be 1100*s plus- for just a few moments or go back to work. A forced regen is done with the diagnostic laptop. The regen adds extra fuel into the exhaust stream and raises the rpm. This causes the soot to burn off of the catalyst face in the DPF, and it then collects the soot ash in the next compartment of the DPF, where some day it will have to be removed and cleaned. While the diagnostics are being done, the tech needs to look at the stored regen history of the tractor to check for any other issues. The operator(s) need to be taught how the system works and to NOT ignore any warning lights. Low rpms and light duty are the MAIN cause of the catalyst face clogging up: working the engine hard and keeping the exhaust hot is the key keeping the soot burnt off of the catalyst face in the DPF. There should NEVER be any smoke/soot coming out of the exhaust pipe. Good luck, Mark.

(quoted from post at 17:09:32 08/14/22) Neighbors have one; this is pre DEF. They are doctors. They are having a problem with the local JD service folks. Asked me to fix it. I am mechanically proficient with many supporting assets but have never worked on said tractor. Seems the exhaust emissions have gotten to the point where the engine is not coming up to full power....as is mentioned in the owner's manual when clean out hasn't been done and is in need. The red STOP light on the dash is illuminated and service manual owner performance suggestions aren't adequate to clear the problem.

With no special tools, JD type or otherwise, can a layman fix that problem?

Thanks,


Mark

Click to expand...

Short duration stop start duty and not warmed up to full operating temp . Shut downs during mid regeneration cause extra problems .
This is why most of the Mr and Mrs hobby farmers should purchase tractors with a max of 25HP .

Mark, I appreciate your sharing of knowledge. Very good information, Thank you!

You are welcome, Mark.

You nailed it. That is how they use their tractor. Problem is that they are both busy with their professional lives and the farm was a
financial investment with the necessity to keep its agricultural exemption with the county......bovines were their selection.
Sometimes they spend visiting days mowing pasture during the summer but otherwise its only use is to put out a round bale of hay
and put it back in the garage.

++++++1. Thank you sir......it DID work out for the best.