T4.75 Regen Question

[Thumper & Buttercup]

Hey all,

Been running our tractor quite a bit between last year mowing and the winter
Snowblowing.

We are in full mowing season here and this spring we were up to 140+ hours after
the winter work, we are just over 190+ hours with the mowing and work here.

Now I have not had a regen on this tractor yet, I don't let it sit around and idle, in the
winter I've been preheating the tractor and fluids using a nipco heater and with the block
heater and the nipco my warm ups and just like summer so not a lot of idle time then.

I let her warm up and ease her into work and then I'm at the 1900 rpm area working the
whole time and when I'm done I give my turbo a good cooling and shut her down.

I've called and e-mailed my dealers shop manager a couple times and he said the way we
are using the tractor he does not feel there is a problem.

So what do you guys think, should I set up a couple fans and open the hood and do a manual
regen. My fuel usage is steady with the work I'm doing and the tractor is running great.

Thanks for your thoughts.


Mark

 

[oosik]

If it ain't broke - don't try to fix it.

 

[nsjames]

If it ain't broke - don't try to fix it.

this.

regen is terrible for everything anyhow. Leave the tractor to manage it, and don't worry about it unless you get limp mode.

 

[jeff9366]

You cannot induce a stationary DPF regeneration before the rudimentary computer controlling the regeneration cycle notifies the operator the Diesel Particulate Filter is full of soot.

Service people can induce early regeneration via a computer program.

 

[Thumper & Buttercup]

My shop manual has the instructions where I can induce a regen if needed.

I'll keep an eye on it and report back when ever it decides it's going to clean itself.

I guess I'm doing something right that it has not done one.

 

[nsjames]

My shop manual has the instructions where I can induce a regen if needed.

I'll keep an eye on it and report back when ever it decides it's going to clean itself.

I guess I'm doing something right that it has not done one.

if you use your junk hard like it's intended, they don't regen.
at least that's true for most truck diesels with DPFs.

putt around on it and never get the EGTs up and thats when they do constant regens.

 

[deserteagle71]

The 4.75 does NOT have a DPF. Therefore you will never see a regeneration cycle. Your New Holland uses a catalyst system which in effect is constantly regenerating.

Your owner's manual should explain all that.

 

[Thumper & Buttercup]

I have a cummings 6.7 so I know all about regens and def,

But in the owners manual it does state with the tractor set in automatic mode for Regen it will notify me if it
goes into regen with a display on the dash and a sound alert. Tbis is from the owners manual, then it goes
into how to do a manual regen if called for.

Just checking with the New Holland guys with a T4.75 what they have seen.



Particulate Matter Catalyst
The particulate matter catalyst is a device designed to eliminate the pollutant particulate produced by diesel engines
from the exhaust gas. When the catalyst is blocked, the catalyst needs to be regenerated.
CAUTION
Burn hazard!
During the particulate matter catalyst regeneration process the exhaust stack and fixed hood area
becomes extremely hot. Allow area to cool before servicing or working near the exhaust system components.
Failure to comply could result in minor or moderate injury.
C0164A
WARNING
Fire hazard!
During the particulate matter catalyst 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 serious injury.
W1346A
The particulate matter catalyst can be regenerated automatically or forcibly.
NOTE: During the regeneration process there may be a smell of burning or "overheating".
Even if the automatic regeneration is enabled, when the level of soot exceeds a certain level, the electronic control
unit invites you to proceed with forced catalyst regeneration.
NOTICE: If, when requested, you do not proceed with manual or forced regeneration of the catalyst, the catalyst's
functionality will be impaired. If you continue to ignore this request, in addition to a considerable reduction in engine
horsepower, the catalyst will be damaged to such an extent as to require it to be replaced by the dealer.
The start of the regeneration process is signalled to the operator on the dashboard's central monitor as well as by
an acoustic signal. The indication is necessary for reasons of safety to warn the operator about the high exhaust
temperature reached during the process.
The automatic regeneration does not affect the engine performance. During the procedure, the operator can continue
working normally.
Under certain operating conditions automatic regeneration might not be completed (engine continuously stopping and
starting, lengthy periods at idle speed) and it must then be repeated.
The start of automatic regeneration, if set, is highlighted on the central monitor. Every 5 minutes appears
the symbol shown on left with the word 徹N combined with a single beep. When the regeneration is
finished the same symbol appears with the word 徹FF?

 

[TXCYCLE]

Thumper,
My 2016 goes into the catalyst grid burn off mode about every ten hours, I’m not splitting hairs with you but it’s a different system than your Cummins ( I have one of those too) and the 6.7’s dpf regen cycles. My dash will show a small puff of smoke and emit a single chime that’s really hard to hear with my hearing even in a cab tractor. The puff comes back on for a split second after five minutes then in another five minutes you’ll get that single chime again and it’s finished for another ten hours or so. And like you I don’t idle for long periods. You think it’s possible you may have missed the chime and the symbol on the dash? If your certain it’s never done a grid burn off I’d sure call the service manager at your friendly dealer and ask him again. Will be interesting if anyone else chimes in here on how their’s operate especially the times between grid cleaning. Good luck hope you get it all sorted out.

 

[Utopia Texas]

I had a 2015 Model T4.75 that would do a regeneration about every 12 hours and I ran it near full throttle all the time mowing pasture. The indicator on the dash only blinks for a second at start, a blink at stop and the beep sound at start and stop is so low in sound you cannot hear it over the roar of the engine. Your unit is regenerating just fine. I switched over to Kubota after having major/expensive repairs on the T4.75 and like the way the Kubota shows me the percentage of buildup in the system all the time and the regeneration symbol stays on during the whole process. On the Kubota I get regenerations about every 22 hours mowing the same pasture as the T4.75. Go figure!