Regen cycles on lx3310

[Mitjam]

Hi guys. This prob has been posted several times but unsure on the lx3310. My average regen cycles are between 14-16 hrs apart. I realize there is so many factors that influence this. My question is do you think Kubota does more frequent regens to keep the soot down in the dpf? What I mean is for example if you know it’s gonna snow all day you shovel 3-4 times it’s not so much snow at once instead of all at once. My dealers said they do this to keep soot levels lower rather than wait till the dpf is plugged. Also increasing the life expectancy of the dpf canister. I would like to know if this is true or these tractors are just creating this much soot at these hours?

 

[SDT]

Hi guys. This prob has been posted several times but unsure on the lx3310. My average regen cycles are between 14-16 hrs apart. I realize there is so many factors that influence this. My question is do you think Kubota does more frequent regens to keep the soot down in the dpf? What I mean is for example if you know it’s gonna snow all day you shovel 3-4 times it’s not so much snow at once instead of all at once. My dealers said they do this to keep soot levels lower rather than wait till the dpf is plugged. Also increasing the life expectancy of the dpf canister. I would like to know if this is true or these tractors are just creating this much soot at these hours?

There is no way to answer your question definitively and dealers will tell you whatever they think will make you go away.

It's not the fault of Kubota.

Thank the federales for your issues.

 

[S-G-R]

Under 2000rpm I typically see a regen in that time frame. When I'm operating at high rpms mowing or tilling it can be 60-100 hours between regens.

 

[TheOldHokie]

Hi guys. This prob has been posted several times but unsure on the lx3310. My average regen cycles are between 14-16 hrs apart. I realize there is so many factors that influence this. My question is do you think Kubota does more frequent regens to keep the soot down in the dpf? What I mean is for example if you know it’s gonna snow all day you shovel 3-4 times it’s not so much snow at once instead of all at once. My dealers said they do this to keep soot levels lower rather than wait till the dpf is plugged. Also increasing the life expectancy of the dpf canister. I would like to know if this is true or these tractors are just creating this much soot at these hours?

I dont know the details of the LX3310 but in general a DPF cleans itself when operating at higher engine RPM and gas temperatures. This is called passive regen and is completely trsnsparent to the user. Passive regen decreases the accumulation of soot in the DPF and reduces the frequency of the active regens you are seeing.

In other words run it at higher RPM and see if that helps reduce the frequency of active regens.

Dan

 

[Mitjam]

I dont know the details of the LX3310 but in general a DPF cleans itself when operating at higher engine RPM and gas temperatures. This is called passive regen and is completely trsnsparent to the user. Passive regen decreases the accumulation of soot in the DPF and reduces the frequency of the active regens you are seeing.

In other words run it at higher RPM and see if that helps reduce the frequency of active regens.

Dan

Thanks Dan. Just seems regens are more frequent then the neighbour with same hp machine just green in color. He does loader work and same type of task as me and his regens are about 60hrs apart. I’ll keep track over the span of the tractor and average it out. But thank for the reply

 

[Mitjam]

Under 2000rpm I typically see a regen in that time frame. When I'm operating at high rpms mowing or tilling it can be 60-100 hours between regens.

Under 2000rpm I typically see a regen in that time frame. When I'm operating at high rpms mowing or tilling it can be 60-100 hours between regens.

Under 2000rpm I typically see a regen in that time frame. When I'm operating at high rpms mowing or tilling it can be 60-100 hours between regens.

well that’s good to know when your actually working the tractor you can get at least 60-100 hours. I was worried at that 16hrs apart the dpf would need to be cleaned or replaced before the tractor is paid for .

 

[SDT]

well that’s good to know when your actually working the tractor you can get at least 60-100 hours. I was worried at that 16hrs apart the dpf would need to be cleaned or replaced before the tractor is paid for .

I own M9960, L6060, and B3350 tractors with DPFs. All see mostly mowing duty.

I have NEVER seen ANY regen cycles remotely approaching 100 hours.

 

[Mitjam]

I own M9960, L6060, and B3350 tractors with DPFs. All see mostly mowing duty.

I have NEVER seen ANY regen cycles remotely approaching 100 hours.

Ya I know on my M6-111 I don’t even notice a regen because they are so far apart. That’s why I was wondering about the lx3310 at 16 hrs regen. It’s in heated shop I let it warm up to one bar and then start working it so no idle time or cold starts on it. Even tried different fuel supplier and diesel additives. But hopefully they increase between regens. I do know the temperature and tasks your doing does affect the tractor. I’m not worried as it hasn’t given me issues but just seems excessive to me.

 

[Snowman7]

I too have seen an average of 16 hours with the exception of the cycle I am currently in. I am approaching 25 hours since my last regen at 291 hours. The tractor was delivered in May of 21
and has been used for all kinds of “tractor stuff” with rpm between 1800-2350. No clue why I am approaching 25 hours since last regen, but it sure makes me curious.

 

[Mitjam]

I too have seen an average of 16 hours with the exception of the cycle I am currently in. I am approaching 25 hours since my last regen at 291 hours. The tractor was delivered in May of 21
and has been used for all kinds of “tractor stuff” with rpm between 1800-2350. No clue why I am approaching 25 hours since last regen, but it sure makes me curious.

These regens are strange things. Just makes you wonder what the life expectancy of the dpf filter is gonna be. I guess as long as the dreaded engine light doesn’t come on and derates the engine keep on tractoring I have 2100 basically trouble free hrs on my m6-111 but I know that uses DEF fluid so totally different animal

 

[hedgerow]

Hi guys. This prob has been posted several times but unsure on the lx3310. My average regen cycles are between 14-16 hrs apart. I realize there is so many factors that influence this. My question is do you think Kubota does more frequent regens to keep the soot down in the dpf? What I mean is for example if you know it’s gonna snow all day you shovel 3-4 times it’s not so much snow at once instead of all at once. My dealers said they do this to keep soot levels lower rather than wait till the dpf is plugged. Also increasing the life expectancy of the dpf canister. I would like to know if this is true or these tractors are just creating this much soot at these hours?

So I am way north of two thousand hours on my MX-6000 and I am the only operator that has runs this tractor. This tractor doesn't get used in the winter and gets a lot of hours on it spot spraying and cutting cedar's tree's out of CRP. I try to run it a 2000 RPM and above. If I do idle it around some it seems to lower the regen to 15-20 hours. Most of my regens are at 40-50 hours running time. So far no issues with the MX-6000

 

[Mitjam]

So I am way north of two thousand hours on my MX-6000 and I am the only operator that has runs this tractor. This tractor doesn't get used in the winter and gets a lot of hours on it spot spraying and cutting cedar's tree's out of CRP. I try to run it a 2000 RPM and above. If I do idle it around some it seems to lower the regen to 15-20 hours. Most of my regens are at 40-50 hours running time. So far no issues with the MX-6000

Thanks for the reply. I guess from reading and the replies on this forum it just varies on the task you’re doing with the tractor. Interesting to see this summer mowing and tilling how much it changes the intervals between active regens

 

[TheOldHokie]

Interesting to see this summer mowing and tilling how much it changes the intervals between active regens

Multiple people have ecplained it. For any engine the interval varies with operating conditions.

Crank the engine RPM into the upper end of the tach and run it for hours not minutes at a time and frequency of regeneration will decrease. Summer operation causes the engine to run hotter and that will decrease frequency as well.

If you think your machine is regening too frequently run it at a higher RPM snd avoid short run times.

Dan

 

[Old Machinist]

I'm late to this topic but thought I would bring it back to life and chime in with my experience so far.

I bought my LX3310 cab tractor with 200 hours on the clock. It did the first regen with me at 201 hours so I don't know it's use leading up to that point. It does have a 72 inch MMM so I assume some if not all of it was mowing. 90% of my use was mowing last summer at WOT which is the designated PTO RPMs. Mine did another regen at 225 hours and another at 261 so I have had 3 regen cycles in 60 hours use.

It would seem that running it at 2500 RPMs running a 72 inch mower with the air conditioner on would be enough load to extend the regen cycles longer than I have experienced.

My fuel supplier delivers ULS diesel that is 5% bio. Says that is all he can get. They only have one grade and add the red dye as it's being pumped for off road tax exemption.

 

[BBFarmer]

I never kept track how many times my 3301 regened in its 300 hour life with me.

If I had to guess I would say maybe 5 or 6 times. It was never often.

Whether I was checking the mail, gradin the driveway, or cutting she was 2500ish rpm always.

 

[North Idaho Wolfman]

My fuel supplier delivers ULS diesel that is 5% bio. Says that is all he can get. They only have one grade and add the red dye as it's being pumped for off road tax exemption.

Add a fuel conditioner to it, something like Stanadyne, this will up the cetane rating allowing the fuel to burn better.
I would also treat the fuel with a biocide if your keeping any amount for any time.

 

[McMXi]

With regens

These regens are strange things. Just makes you wonder what the life expectancy of the dpf filter is gonna be. I guess as long as the dreaded engine light doesn’t come on and derates the engine keep on tractoring I have 2100 basically trouble free hrs on my m6-111 but I know that uses DEF fluid so totally different animal

It's ash rather than soot (carbon) that's the problem with DPF since it can't be burned out, unlike soot. Once the ash content is excessive, the DPF needs to be removed and cleaned mechanically, or even replaced. Anything that reduces ash production is a good thing.

Most regen issues seem to crop up when the owner manages to get to PM warning level 3 or higher, which I think is down to people not reading and understanding the owner's manual as it pertains to regens. I've always performed regens at PM warning level 1. I was on the 30 to 40 hour regen frequency with the MX, but a much higher frequency with the M. I believe this is down to the fact that engine rpm and ground speed are directly related with gear drive transmissions, so there's a need to move around at much lower rpm such as getting on off a trailer, removing or installing an implement, switching between forward and reverse with the hydraulic shuttle etc. It all adds up to running at lower, soot producing rpm, way more than with an HST.