DPF Removal

fixthetractor · Feb 27, 2022

Does anyone know if there is a problem with removing the ceramic filter media in the DPF? This would be on a Branson 5835R.

North to Alaska · Feb 27, 2022

Your Branson doesn’t have a computer.
The tractor won’t care.
You might want to just remove the whole thing and replace with a muffler.
This has been done before.

You may want to hold off till tractor is out of warranty?

JonnyRed · Feb 28, 2022

The tractor should run fine if you gut the DPF. However, I believe you will get the DPF light flashing at you from the dash. The newer (2020+) tractors don't allow for you to simply unplug the DPF ECM like the older ones do. If you unplug it you lose your tach and temp gauges. If you end up doing this mod please let us know the results.

Asteral · Feb 28, 2022

on your model 5835r just start by drilling about 8-12 1/4" holes through the media in the center section of the filter dont just gut it on your model its a bit more involved with what the ECM and data logger control and i have seen gutting them cause issues( this is the only model thus far that I've seen the issues with) like stalling not wanting to start etc,
start by drilling it first then go from there. its really going to depend on what month and years your is the newer it is the more chance of an issue arising, since TYM took over they have been pushing us towards more computer control( i'm not happy about it) and with that comes extra issue with things like this. let me know what year yours is or shoot me the serial number i'll see if i cant find out for you.

fixthetractor · Feb 28, 2022

Asteral said:
on your model 5835r just start by drilling about 8-12 1/4" holes through the media in the center section of the filter dont just gut it on your model its a bit more involved with what the ECM and data logger control and i have seen gutting them cause issues( this is the only model thus far that I've seen the issues with) like stalling not wanting to start etc,
start by drilling it first then go from there. its really going to depend on what month and years your is the newer it is the more chance of an issue arising, since TYM took over they have been pushing us towards more computer control( i'm not happy about it) and with that comes extra issue with things like this. let me know what year yours is or shoot me the serial number i'll see if i cant find out for you.

It is a 2022

3 Horse Ranch · Feb 28, 2022

fixthetractor said:
Does anyone know if there is a problem with removing the ceramic filter media in the DPF? This would be on a Branson 5835R.

Why would you want to?

North to Alaska · Feb 28, 2022

JonnyRed said:
The tractor should run fine if you gut the DPF. However, I believe you will get the DPF light flashing at you from the dash. The newer (2020+) tractors don't allow for you to simply unplug the DPF ECM like the older ones do. If you unplug it you lose your tach and temp gauges. If you end up doing this mod please let us know the results.

Interesting
I purchased my 4520r in August 2020. Not sure if the manufacture date. Do you have more info on this?

I am also understanding more of what you are talking about. We can gut/remove the DPF but just can’t disconnect the warning light on the dash for newer models.
Again I am curious if anyone has more info on when specifically that started

Asteral · Feb 28, 2022

ok on the 2022 model you will only want to drill it out to start with and see what effect this has, be forewarned if you do this the light for the dpf will more than likely stay on at all times in the future, it shouldn't effect performance by doing this although you may see a light uptick in fuel consumption.

fixthetractor · Feb 28, 2022

3 Horse Ranch said:
Why would you want to?

So you don't have to run at high RPM all the time.

ericm979 · Feb 28, 2022

If yours has the ability to command a regen like the new 20 series models do, then you should be able to run it however you want. If you don't run it hard enough often enough, it'll tell you to do a regen or will ask for a regen more often. No big deal.

Even if it's like mine and can't do a regen, I'd run it as it is and see how it handles it. It might do ok. I've stopped worrying about mine. I must be running it hard enough. If yours keeps having problems then consider modding it. No point in ruining an expensive part unless you have to.

ptsg · Feb 28, 2022

ericm979 said:
If yours has the ability to command a regen like the new 20 series models do, then you should be able to run it however you want. If you don't run it hard enough often enough, it'll tell you to do a regen or will ask for a regen more often. No big deal.

Even if it's like mine and can't do a regen, I'd run it as it is and see how it handles it. It might do ok. I've stopped worrying about mine. I must be running it hard enough. If yours keeps having problems then consider modding it. No point in ruining an expensive part unless you have to.

I agree. I also suspect that in some cases, people bought too big of a tractor (HP wise) and simply don't have enough work load for it to prevent DPF from clogging.

In your case, you have the chipper that takes care of the engine load "issue" just fine and pretty much makes the DPF running trouble free.

fixthetractor · Feb 28, 2022

ericm979 said:
If yours has the ability to command a regen like the new 20 series models do, then you should be able to run it however you want. If you don't run it hard enough often enough, it'll tell you to do a regen or will ask for a regen more often. No big deal.

Even if it's like mine and can't do a regen, I'd run it as it is and see how it handles it. It might do ok. I've stopped worrying about mine. I must be running it hard enough. If yours keeps having problems then consider modding it. No point in ruining an expensive part unless you have to.

Good point.

TractorTYMe · Feb 28, 2022

Do you currently have problems with your Branson, since you want to do this? I have a A2300N4 engine in my TYM, I'm at 204h.......never asked for a regen. But I run it at 1800-2k rpms + depending on what I'm doing.

3 Horse Ranch · Feb 28, 2022

fixthetractor said:
So you don't have to run at high RPM all the time.

Understandable with a geared model, not so much with an HST.

LouNY · Feb 28, 2022

3 Horse Ranch said:
Understandable with a geared model, not so much with an HST.

What difference would the type of transmission have to do with it,
in one you are mechanically changing gears,
in the other you are effectively changing gears by changing the angle of the swash plate in the pump.

3 Horse Ranch · Feb 28, 2022

LouNY said:
What difference would the type of transmission have to do with it,
in one you are mechanically changing gears,
in the other you are effectively changing gears by changing the angle of the swash plate in the pump.

With an HST you can set the throttle at a given RPM and not worry about clutch wear.

LouNY · Feb 28, 2022

I do that with my geared tractors.

125778 · Dec 30, 2023

I completely removed the DPF on my 21 5520. Had to fab the new exhaust, not hard.
Got the pipe kit (a bunch of random bent exhaust pipe) & muffler on Amazon. Had to make a flange. Not any louder, dry little black smoke, you can idle all day & uses way less fuel. Can’t unplug the DPF ecu or you lose the tach. The DPF flashes all the time; piece of tape fixes that. Zero issues, ru s great.