Warnings on new Kubota

[Eagle1]

I humbly and strongly disagree and I would suggest a new dealer or at least use someone else at the dealership for advice.

Preventing or stopping a regen. is not something a person should do regularly thats for sure but stopping or preventing is a definite necessity in some circumstances.

There are certain situations like when loading straw or hay into my storage shed, driving through or mowing tall / dry grass, etc... that a regen can be down right dangerous. Prevent regen when the extra hot exhaust gasses are dangerous. Then force a regen when situation safe to do so.

Hotter exhaust temps burning off the crap in the filter and pushing it through the pipe can increases chance of starting exhaust fires. When risk is high avoid a regen and then turn back on when safe or use the parked regen function when back in a safe situation.

Inhibiting regen in some situations is a much needed function IMHO.

(let the flaming begin)

NO flames, being able to stop/prevent a regen is function every tract should have. I've used it more than once on my LS. Mostly when I'm doing BH work and don't want 2K plus rpm for a spell, I turn it down when working in tight areas. Just remember to enable it when you are done and do some loader work while it burns.

 

[deserteagle71]

There are certain situations like when loading straw or hay into my storage shed, driving through or mowing tall / dry grass, etc... that a regen can be down right dangerous. Prevent regen when the extra hot exhaust gasses are dangerous. Then force a regen when situation safe to do so.

Unless you are going to postpone the regen process for only a few minutes I think it is better for the tractor to just back out of the dangerous situation and let the regen process finish. Regen in my Kubota has never taken longer than 15 minutes.

I've been mowing cheatgrass for the past 3 days. If you know anything about cheatgrass, it is extremely flammable - causes the worst wildland fires here in the desert. But the exhaust in my Kubota exits about 7' off the ground; no part of the exhaust is any closer than 4' from the ground and it is all shielded. So unless you have a orchard-type tractor with exhaust that exits below the tractor I don't see how a top-exhaust tractor could cause a problem outside in a field. Inside a building where the exhaust could get close to something flammable is about the only situation I can think of where I'd wait till the regen is done.

 

[Eagle1]

Unless you are going to postpone the regen process for only a few minutes I think it is better for the tractor to just back out of the dangerous situation and let the regen process finish. Regen in my Kubota has never taken longer than 15 minutes.

I've been mowing cheatgrass for the past 3 days. If you know anything about cheatgrass, it is extremely flammable - causes the worst wildland fires here in the desert. But the exhaust in my Kubota exits about 7' off the ground; no part of the exhaust is any closer than 4' from the ground and it is all shielded. So unless you have a orchard-type tractor with exhaust that exits below the tractor I don't see how a top-exhaust tractor could cause a problem outside in a field. Inside a building where the exhaust could get close to something flammable is about the only situation I can think of where I'd wait till the regen is done.

Many newer tractor have exhaust exit below the frame in the front. MY LS exhaust is about 16" +- from the ground.

 

[workinonit]

I humbly and strongly disagree and I would suggest a new dealer or at least use someone else at the dealership for advice.

Preventing or stopping a regen. is not something a person should do regularly thats for sure but stopping or preventing is a definite necessity in some circumstances.

There are certain situations like when loading straw or hay into my storage shed, driving through or mowing tall / dry grass, etc... that a regen can be down right dangerous. Prevent regen when the extra hot exhaust gasses are dangerous. Then force a regen when situation safe to do so.

Hotter exhaust temps burning off the crap in the filter and pushing it through the pipe can increases chance of starting exhaust fires. When risk is high avoid a regen and then turn back on when safe or use the parked regen function when back in a safe situation.

Inhibiting regen in some situations is a much needed function IMHO.

(let the flaming begin)

I don't see it. Certainly can't think of any circumstance that I would need to disable it and I never have. I've done quite a bit of research on when, how and why the regen process works. Lots of things I don't understand about other people's experiences but I do understand mine and one thing that I have found for sure is that the people that screw around with the regen process have issues with their tractors. One thing I surely don't need is a new dealer. LOL. That advice is solid. However, I'm sure it doesn't trump starting a fire. Carry on. I'm done with this topic.

 

[Eagle1]

Well this is warning in my OP manual, since exhaust temps can exceed 600C

Auto regeneration mode operation
WARNING
Fire hazard!
During the Diesel Particulate Filter (DPF)
forced regeneration process the exhaust
stack and fixed hood area becomes extremely
hot. Park the machine outside and away from
combustible or highly flammable material.
Failure to comply could result in death or se-
rious injury

And this

Inhibited regeneration mode operation
NOTICE: Only use this mode when regeneration needs to
be delayed or stopped because of an operation condition
that may risk a fire hazard due to high exhaust tempera-
tures during regeneration

 

[MapleLeafFarmer]

Well this is warning in my OP manual, since exhaust temps can exceed 600C

Auto regeneration mode operation
WARNING
Fire hazard!
During the Diesel Particulate Filter (DPF)
forced regeneration process the exhaust
stack and fixed hood area becomes extremely
hot. Park the machine outside and away from
combustible or highly flammable material.
Failure to comply could result in death or se-
rious injury

And this

Inhibited regeneration mode operation
NOTICE: Only use this mode when regeneration needs to
be delayed or stopped because of an operation condition
that may risk a fire hazard due to high exhaust tempera-
tures during regeneration

Thanks

Deere, Kubota, LS are all well respected global brands.

I have seen similar warnings from all 3.

That is why the DPF inhibit button exists on many models/brands so when the situation is correct we can stop a regen from happening.

Of course not recommended to do unless necessary but it is necessary sometimes was my point.

cheers

 

[Eagle1]

Another feature of modern diesels, not an issue on anything pre-dpf.

 

[CloverKnollFarms]

The Branson tractor indicates when it needs a regen, but requires the operator to initiate it. Presumably to avoid the fire danger

 

[Willie B]

We have a '22 Kubota L6060 Grandcab we keep on some property in the FL Panhandle. I was working it reasonably hard ystdy in L 4wd pushing thick bunches of Youpon Holly I had severed at the base with a pole saw with the bucket into the surrounding young Loblollies. If left alone these groves of Youpon rapidly narrow our trails & often scrape the paintwork & flatten mirrors on our vehicles. Whilst 30/mins into doing this there was a loud beep in the cabin & three yellow warning icons appeared at the bottom right of the dash and flashed. One was bulbous & had UP printed in the middle, the other two looked like sideways showers. I first looked at the temp guage - which was in its normal position so quickly parked uneventfully, checked for leaks - none I could see - and when home checked the manual which really wasn't that helpful. The closest I could find in the manual was the bulbous icon which warned of possible low oil pressure due to too low revs. It didn't mention anything about a beep. Oil level was OK. Except when working the PTO (@2200 RPM) I do tend to use low revs, at least lower than recommend by the dealer. Would that be all it is? I should also mention it has run for 26/hrs, 1/hr. past dealer recommended first oil change.

Wild guess here, I don't own any Kubota. My new to me Case 580 Super N has so many alarms! It has taken a while to get used to them. I had an alarm come on soon after I bought it looked like you describe, but with a wrench. Turned out to be time for engine service.

Before the complex exhaust systems, some manufacturers called for avoiding low RPM. The theory is oil pump needs a minimum volume flow to assure ALL of the engine gets a share of oil. All engines have intricate oil paths. If passages aren't small those with least resistance get all the flow. They need adequate flow to create resistance pressure & distribute lubricant everywhere.

These days you need to burn more fuel to heat your exhaust to required temperature.

 

[mmsb27]

Regen works, but I have to adapt to it in my M6060. I grew up running old iron, and never needed to run the high RPM to accomplish the tasks. The newer equipment needs to run at higher RPM, to get the HP and the DPF clean as others have mentioned. Years of conditioning of not having the RPMs at 2500, makes it seem like like I’m abusing the machine, when I’m not. I’m a slow learner, as I still use old iron, sometimes at 1200 RPM. When my M6060 wants to go in REGEN, I don’t fight it, I crank up the RPMs, and let it happen. Normally 10-15 minutes.