actual use of tier 4

[whizdbiz2]

Mahindra owners don't have any issues with Tier IV as far as I know. No regen, fluilds or other issues to deal with like all the other brands. Sounds like a better solution to me.

Introducing our Tier IV "mCRD Technology" | Mahindra

My little Mahindra has over a year on it and no engine issues. It doesn't have to re-gen or add fluid. Just a puff of smoke on start up and no diesel smell. It this is Tier IV, I like it.

 

[MessickFarmEqu]

I'm gonna buy a new tractor in the spring, thats why i joined this forum to learn all i can. from what i've learned so far i'm concerned about this tier 4 stuff, I went by a Mahindra/ NewHolland dealer the other day and the guy there spent some time on the subject. here's what he said he opened a N/H hood to show me a can/tank. he said that this system you gotta run the engine at high rpm's all the time. if you dont you'l have more regen cycles the more regen cycles means the porcelen core will were out stop up, to replace is 3,500. high rpm's means poor fuel economy and more ware and tare on the engine. also he said not to park them in a hay field or a barn cause thay will catch on fire. then we moved over to the Mahindra he said they don't use that system or the fluid system, they use a really high preassure ingector pump that super atomizes the fuel for cleaner burning. so you don't have to deal with or mess with anything. just use it like the old tractors. not 2 days later i whent by an old frend who has a large farm, to get some input from him. he has/had a really big 100+ case cab, he said it burned to ground in his hay field. i told him what i learned at the dealer and he said it did have that can on the engine, i call it a can cause i don't know the right term. he said someone he know's had his barn and tractor burn to ground. go figure.

there is a lot of misinformation here.

The higher RPM's needed for tier 4 does not lead to poor fuel economy. That's more tied to torque demand than it is RPM, fuel use is not linear to RPM. Tier 4 engines also do not create any more heat that any other engine does running wide open. Replacement cost is not $3500, its closer to $400. A DOC (the type of engine Mahindra uses that your describing) is still 3/4 the same hardware as a DPF, it just does not burn. It has its own set of drawbacks if you look a the the way it handles soot. Its a lot more complicated than just boosting injection pressure.

 

[Luke'sScreenName]

there is a lot of misinformation here.

The higher RPM's needed for tier 4 does not lead to poor fuel economy. That's more tied to torque demand than it is RPM, fuel use is not linear to RPM. Tier 4 engines also do not create any more heat that any other engine does running wide open. Replacement cost is not $3500, its closer to $400. A DOC (the type of engine Mahindra uses that your describing) is still 3/4 the same hardware as a DPF, it just does not burn. It has its own set of drawbacks if you look a the the way it handles soot. Its a lot more complicated than just boosting injection pressure.

Thank you!

 

[bwalley]

So I started this thread without a tractor. Now I have 30 hours on an LS 3032 doing FEL work, using pallet forks to move large root balls and logs, a box scraper to reshape some landscape and pull out tree roots. The regen comes on about every 4 hours and if the regen indicator light didn't come on I wouldn't know it. There is no exhaust smoke- I can't even smell exhaust fumes. Lovin' it. Thanks for all the discussion folks. I have learned much. Got a 5 year warranty with the tractor and hope I never have to use it-the warranty that is

 

[The Deerslayer]

there is a lot of misinformation here.

The higher RPM's needed for tier 4 does not lead to poor fuel economy. That's more tied to torque demand than it is RPM, fuel use is not linear to RPM. Tier 4 engines also do not create any more heat that any other engine does running wide open. Replacement cost is not $3500, its closer to $400. A DOC (the type of engine Mahindra uses that your describing) is still 3/4 the same hardware as a DPF, it just does not burn. It has its own set of drawbacks if you look a the the way it handles soot. Its a lot more complicated than just boosting injection pressure.

Well said, and thanks for clearing it up for everyone.

 

[grclark50]

Anyone have actual experience with the new
tier. 4 engines? I read much about what
could be etc Looking at brochures from different Mfg of CUTs seems they each have their own way.

My mx5200 had nineteen hours on it when it started to regen yesterday. I didn't really know what was going on but I could smell something hot so I turned it off (no no) and read the instructions. Started it back up, ran up the rpms until regen cycle started which lasted about seven minutes or so, finished the regen and went back to normal. No problems that I am aware of however next time I will continue to work the tractor during the regen. Otherwise really pleased with the Kubota MX5200.
grc

 

[smokin aces]

sorry. but any engine will use more fuel the faster you run it, more output reqiurs more input. the faster you run an engine the the faster the ware on on it, that is a fact. the 350cid in my pickup rated hp is at the top of it's rpm range about 4200 rpm,all engines hp/torque ratings are at the top of there rpm range. do you think that if i get on the hwy in say 2nd or 3rd gear and run 65mph so the engine is at 4200 rpm im not gonna suck gas like crazy. how long you think my engines gonna last. you match the rpms and the gears to the work. if you shove the throttle up to max rpm every time you get on your tractor. you sure will use more fuel, and faster ware. the EPA strikes again.

 

[eth555]

sorry. but any engine will use more fuel the faster you run it, more output reqiurs more input. the faster you run an engine the the faster the ware on on it, that is a fact. the 350cid in my pickup rated hp is at the top of it's rpm range about 4200 rpm,all engines hp/torque ratings are at the top of there rpm range. do you think that if i get on the hwy in say 2nd or 3rd gear and run 65mph so the engine is at 4200 rpm im not gonna suck gas like crazy. how long you think my engines gonna last. you match the rpms and the gears to the work. if you shove the throttle up to max rpm every time you get on your tractor. you sure will use more fuel, and faster ware. the EPA strikes again.

That is untrue, have you ever seen a dyno sheet with engine HP/TQ curves on them? By your reasoning we should just start and let engines idle. When you go to the store do you idle the whole way there, if you don't why is that? The point of any engine is to work, be productive at whatever application it is in and be efficient at that production. HP/TQ curves are engineered into engines based on their applications. There is a point where the engine is getting the most work/production done with the minimal amount of fuel, or its peak efficiency, this is true whether or not the engine is TIER 4. What Messicks was trying to say is Tier 4 has made engines more efficient than their predecessors. I do not think there is much debate Tier 4 is more efficient as every manufacturer toutes that as a benefit; so are all manufacturers lying to their potential customers? There is a lot of direct Tier 4 experiences on the board and the majority of them have been skeptical at first, that turns to positive after actually operating the machine and seeing/learning how the regen functions and realize it is not the sky falling scenario as some paint it as.

I'm gonna buy a new tractor in the spring, thats why i joined this forum to learn all i can. from what i've learned so far i'm concerned about this tier 4 stuff, I went by a Mahindra/ NewHolland dealer the other day and the guy there spent some time on the subject. here's what he said he opened a N/H hood to show me a can/tank. he said that this system you gotta run the engine at high rpm's all the time. if you dont you'l have more regen cycles the more regen cycles means the porcelen core will were out stop up, to replace is 3,500. high rpm's means poor fuel economy and more ware and tare on the engine. also he said not to park them in a hay field or a barn cause thay will catch on fire. then we moved over to the Mahindra he said they don't use that system or the fluid system, they use a really high preassure ingector pump that super atomizes the fuel for cleaner burning. so you don't have to deal with or mess with anything. just use it like the old tractors. not 2 days later i whent by an old frend who has a large farm, to get some input from him. he has/had a really big 100+ case cab, he said it burned to ground in his hay field. i told him what i learned at the dealer and he said it did have that can on the engine, i call it a can cause i don't know the right term. he said someone he know's had his barn and tractor burn to ground. go figure.

There were tractor and barn fires long before Tier 4 came along; so without know what the actual cause of the fire is, it is hardly justifiable to blame Tier 4, just because there happened to be a Tier 4 tractor in the area of the fire; that your old friend told you about.

 

[OrangeToys]

I recently purchased a kubota M7060 and hated the idea like most of the tier 4. But my thoughts on it now have changed having 80hrs on it in 2 months. I run the tractor with a 12ft brush hog and run it constantly at 2100rpm. Since I have owned this machine I have done 2 regens (35hr and 72hr) and if the little reminder light hadn't told me to do it (hit the auto button) I never would have known it was happeneing. Rpm didn't change and it only took 3-5 min each time.

The only complaint I have heard is when people don't work the tractor it regens more and if your don't let it regen you have a large paper wieght. Diesels arade to work, I doubt the fuel consumption is very noticeable when running low rpm vs high rpm. Especially when you have to call a mechanic to come fix your tractor because it didn't regen. We are in the day and age where all tractors will have the same systems as the trucks. And just like the trucks i bet one day you will be able to take off the dpf and run with out. So if you want a new tractor/truck go get it, it's not going to get any better.

 

[smokin aces]

1st let me say i'm not pushing or trashing any brand tractor, so get of your high horse. when i buy my tractor the decideing factor will be most bang for the buck. as far as fuel consumtion goes if you step on the gas you are delivering more gas if you let of the gas you are reduceing the delivery of gas. why do think the put overdrive transmissions in cars, to slow the engine down what does that do, it uses less gas. again you match the rpms and gears to the work thats called the sweet spot. the faster you move a piston up and down the more air and fuel has to be delivered. wich is harder hotter on the engine. that tier 4 is not more efficiant, it robs power and fuel and creates more heat. and this next tidbit will make you treehuggers choke on your granola, I talked to someone the other day who after a year of playing nursemaid to that epa can took his tractor to muffler shop and had the can removed and his exaust replumbed to the muffler. like the old tractors. I asked him didn't the computer freak out, he said no problems at all, he said the tractor uses less fuel more power runs cooler and just as clean. that all i'm gonna say on the subject. so if you can't get your mind around that, you need to get off the coolade.