LS XR4046 regen advice

[fl setwork]

I am looking at a LS 4046h with loader. Good price at $23,700 delivered. My question regards the regen method. The dealer was not much help. Any thoughts? Also he says it is the same machine as the NH boomer. The folks at NH dont think so. Any thoughts or is the dealer giving a sales pitch.

 

[George2615]

The LS XR4046 and the Boomer 47 both have the Shibaura N844L 4 cylinder engine. Both are built by LS. Regen cycles will be about every 5 hours. There is a regen inhibit switch which can be depressed to postpone the regen. I have an XR3037HC (smaller Shibaura 3 cylinder engine) with the same regen cycles. I have about 96 hours on mine so it has run the regen cycle quite a few times without any problems.

The newer LS XR3100-4100 series have the LS engine. Regen cycles on them are around every 50 hours.

 

[fl setwork]

Thanks George,
Not being a heavy user, will this be an issue? Seems like a lot of cycles compared to the 4100 series. I guess its all what you get used to. I do realy like the fit and finish of this tractor.

 

[George2615]

It has not been an issue for me. I'm not a heavy user either. I've seen it regen a few times at the 5 hour intervals but not every time. I'm usually busy working the loader or some attachment. The regen cycle seems to work in the background and even when in regen I don't notice any loss in power or anything. I normally run the RPM's around 2000-2200 for loader work, plowing snow, flail mower etc. and 1500-1800 for the backhoe or post hole digger. Apparently the LS engineers spent a lot of time designing their new LS engine to increase the hours between regen cycles.
I think I've only read a couple posts about tractors going into limp mode which limits the RPM's to around 1500-1800 until the cycle is complete but IMO it was due to the operator running the RPM too low. These new tier 4 engines like higher RPM to keep the temps up.
I'm very pleased with my LS.

 

[Bull Of The Woods]

I have to agree with you George, I think running the engine at lower RPM will cause the regen to happen earlier or more often. I just got my XR 4140 in January and of course it was new and I was unfamiliar with it so I admit I did kind of baby it a little. And it had the first regen at 27 hrs. Since then I have become much more familiar and comfortable with it and have been running at higher RPM. Curious to see how many hours I will get between first and second regen. I now have 45 hours and no second regen yet, If I can make it to 54 hours + I guess I'm doing better, working it a little harder.

 

[Supraman0614]

I agree. My XR4145's first regen was at 40 hours, but I babied it too. Now that I'm through my first oil change and over 50 hours, I'm running at a little higher RPM. It's different than an older diesel tractor in that I used to run those only as fast as I needed to get the work done. These new engines are a little different in that they seem to like to be run at a little higher RPM. Mine is a shuttle shift so I don't have to run the RPM's as high as a hydro. Great tractor though, except for the lack of a cup holder.:drink:

 

[lostcreekranch]

I agree. My XR4145's first regen was at 40 hours, but I babied it too. Now that I'm through my first oil change and over 50 hours, I'm running at a little higher RPM. It's different than an older diesel tractor in that I used to run those only as fast as I needed to get the work done. These new engines are a little different in that they seem to like to be run at a little higher RPM. Mine is a shuttle shift so I don't have to run the RPM's as high as a hydro. Great tractor though, except for the lack of a cup holder.:drink:

Cup holder comes free with cab model.

 

[mjstef]

I think I've only read a couple posts about tractors going into limp mode which limits the RPM's to around 1500-1800 until the cycle is complete but IMO it was due to the operator running the RPM too low. These new tier 4 engines like higher RPM to keep the temps up.
I'm very pleased with my LS.

Mine was going into limp on and off last fall running PTO RPM brush hogging for 12 hrs straight. Had to let it sit for over an hour each time to get it to come out. Not sure RPM's have anything to do with it other than causing it to regen more often. Should NOT go into limp from low RPM. I have NEVER shut it off while in regen either. I sit and Wait.... Wait..... Wait....Wait........

 

[MyLake]

My first regen kicked in today at 16.7 hours. After reading all the posts about running at high rpms, I usually run around 2000-2400. Not sure why it happened so early for me since I try to keep the rpms up. I was running box blade at 2100 when it started. I kept working without an issue at 2100, it did not miss a beat- did not limp or give me any trouble at all. It stopped regening at 17.0.

 

[PivotalConnections]

My XR4145HC hit its first regen at ~17 hours. I run it in the 2000-2400 range but it has run at 1000-1500 for about 1.5 hours of those 17 hours as the RPM's are lowered when working with people and talking to them through the window just to make it quieter. The regen took about 15 minutes and occured while running bush hog. It didn't impact the work being done. Around 12 hours the tractor went into limp mode when the fuel filter dash light came on. I looked that up and it inidicated that the fuel filter sensor was detecting water in the filter, so I bled the water from the filter, and was back to normal. Unhappy about somehow having water in the fuel in only 12 hours of use though! Didn't go back to that gas station to get fuel.