Had my first regen today

   / Had my first regen today #1  

johnnyvol

Silver Member
Joined
Jul 25, 2006
Messages
121
Location
Middle TN
Tractor
Kubota L4060hstc
I had my first DPM filter regeneration on my L4060 today. Honestly I didn't know what to expect, I've heard a lot of negative comments about the new engines and the Tier 4. For anyone interested here's how it went.

I started the day with about 45 hours on the hour meter and 95% on the PM. I was bush hogging and also pushing some smaller trees. The PM got to 99% at about 46.3 hours so I moved in closer to the house just in case there were any billowing clouds of smoke or flames about the shoot out the exhaust.:confused3: I kept on bush hogging and at 46.6 hours the dash began to flash "REGENERATING" and the PM was 100%. The clock read 13:47.

I had been expecting some sort of loss in power or some other noticeable change in operation but none occurred. At 46.8 on the hour meter and 13 minutes later on the clock the PM changed to 0% and the dash stopped flashing regenerating. Honestly if I hadn't been looking for it I wouldn't have known it even happened. I don't even know if it would have flashed anything had the display been on another view.

My biggest concern (aside from blowing myself up or setting something on fire) was how my fuel economy would be affected. So far I've been very satisfied with the fuel efficiency of this machine. When I began the regen I was at 46.6 hours and 36.6 gallons of fuel used in that time (.785 gph). I would estimate about half of the time was bush hogging while the rest was pushing trees and moving dirt. I was at 37.0 when the regen finished (.791 gph). The regen burned fuel at the rate of a little less than 2gph, so statistically speaking the fuel economy suffers when regen occurs. However from a relative sense the regen lasted only a short time and actually burned less than .5 gallon of diesel.

If anybody is still reading this, as an actual user of the Tier 4 engine I can say that through the first 47 hours of use I have zero complaints or concerns about the fuel economy or the DPM system. Time may change that but for now I am extremely satisfied.:thumbsup:

John
 
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   / Had my first regen today #2  
I read the whole thing, but sorry to say, I do not know what you are talking about ..."regeneration"...:confused2:
 
   / Had my first regen today #3  
Nice to hear it doesn't seem to be the horror story some people thought it would be.I am guessing PM is particulate matter?
 
   / Had my first regen today #4  
I read the whole thing, but sorry to say, I do not know what you are talking about ..."regeneration"...:confused2:

Just do a search on diesel engine exhaust regen.
You can read for hours.
 
   / Had my first regen today #5  
Nice to hear it doesn't seem to be the horror story some people thought it would be. . .
The horror story is not the regen process. It's repairing or replacing the regen components. I don't have a clue what it costs for the tractor parts, but a DPF (like a catalytic converter) for a Mack truck is $6000 to replace. :eek:
 
   / Had my first regen today #6  
Does the tractor show the fuel consumption?
 
   / Had my first regen today #7  
You shouldn't loose any power since all your doing is injecting fuel into the exhaust to heat up the particulate filter to burn off any soot. How much fuel it uses will probably depend on how hard you work the engine (how hot the filter gets during normal use) and how quickly the filter gets to 100%.
 
   / Had my first regen today #8  
I had my first DPM filter regeneration on my L4060 today. Honestly I didn't know what to expect, I've heard a lot of negative comments about the new engines and the Tier 4. For anyone interested here's how it went.

I started the day with about 45 hours on the hour meter and 95% on the PM. I was bush hogging and also pushing some smaller trees. The PM got to 99% at about 46.3 hours so I moved in closer to the house just in case there were any billowing clouds of smoke or flames about the shoot out the exhaust.:confused3: I kept on bush hogging and at 46.6 hours the dash began to flash "REGENERATING" and the PM was 100%. The clock read 13:47.

I had been expecting some sort of loss in power or some other noticeable change in operation but none occurred. At 46.8 on the hour meter and 13 minutes later on the clock the PM changed to 0% and the dash stopped flashing regenerating. Honestly if I hadn't been looking for it I wouldn't have known it even happened. I don't even know if it would have flashed anything had the display been on another view.

My biggest concern (aside from blowing myself up or setting something on fire) was how my fuel economy would be affected. So far I've been very satisfied with the fuel efficiency of this machine. When I began the regen I was at 46.6 hours and 36.6 gallons of fuel used in that time (.785 gph). I would estimate about half of the time was bush hogging while the rest was pushing trees and moving dirt. I was at 37.0 when the regen finished (.791 gph). The regen burned fuel at the rate of a little less than 2gph, so statistically speaking the fuel economy suffers when regen occurs. However from a relative sense the regen lasted only a short time and actually burned less than .5 gallon of diesel.

If anybody is still reading this, as an actual user of the Tier 4 engine I can say that through the first 47 hours of use I have zero complaints or concerns about the fuel economy or the DPM system. Time may change that but for now I am extremely satisfied.:thumbsup:

John

Until reading your post I didn't know I could display PM. I pulled out my. M135GX book and sure enough it is buried in the side display options. I've had no clue as to how close I am. A neighbor got a M100GX a month after I got mine and his first regen was at 12 hours but the dealer had used his as a dealer yard demo so it had all low speed, low power hours with lots of starts. Mine arrived after planting so it has been waiting for dry weather and therefore it had 7 fooling around hours before having 11 hours chopping hay at nearly continuous max power. Will be interesting to see how much my filter is loaded up. The book says under high load like I have been running at the last it will rarely regen. Like can I work it hard enough to burn off soot without a regen.
 
   / Had my first regen today
  • Thread Starter
#9  
Does the tractor show the fuel consumption?

It shows total fuel consumed as well as per hour burn to the tenth of the gallon.
 
   / Had my first regen today
  • Thread Starter
#10  
You shouldn't loose any power since all your doing is injecting fuel into the exhaust to heat up the particulate filter to burn off any soot. How much fuel it uses will probably depend on how hard you work the engine (how hot the filter gets during normal use) and how quickly the filter gets to 100%.

Like I said I didn't know what to expect. You're right I shouldn't lose any power but I've read so much misinformation about the Tier 4 like how it will have poor fuel economy and how much trouble the regeneration will be, etc... I'm glad to see for myself that a lot of the things I read aren't true.
 

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