I got a lesson on the new Tier 4 Bobcat yesterday and to me it is junk that I personally would never buy into , computer on top of computers , there is a catalitic converter on the engine that has to be flushed out by a dealer with a $10,000 machine every so many hours of use and there is a day tank jug which holds like 5 ounzes of a liquid which I think is concentrated uretia ( spell check ) , which is amonia ( chicken piss) , get this it cost $100 per gallon from Bobcat , it is injected into the catalitic converter to boost the heat so that it will burn up the soot , I have seen the new Peterbuilt that has the uretia tank which is 15 gallons and that cost $5 per gallon at the truck stop , also seen a superintendent 's new diesel truck and his has the tank on it also , what a crock of chicken shit --- I would suggest hanging on to all your older machines
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That's just silly!
Why don't they need to do the same on the newer common rail diesel cars? pretty sure they don't expect you to get a chicken to pee in the cat every day
I too don't like the computers on computers, in an industrial aplication as these engines are, less is more. I have heard of stories of a brand new compressor with computer engine management being delivered to a job site. It refused to run, the service guys had to come out with a laptop, still couldn't get it to go. A plain old style diesel would have rattled away all day without an issue.
Why don't they need to do the same on the newer common rail diesel cars? pretty sure they don't expect you to get a chicken to pee in the cat every day
I too don't like the computers on computers, in an industrial aplication as these engines are, less is more. I have heard of stories of a brand new compressor with computer engine management being delivered to a job site. It refused to run, the service guys had to come out with a laptop, still couldn't get it to go. A plain old style diesel would have rattled away all day without an issue.
another incident going on right now is a Cat D6 which is shooting codes , the Cat man went to the job over two weeks ago and starting changing parts and the codes keep coming up and not shutting the machine down but you can't operate the machine as the load buzzer constantly going off will give you a headache really fast , lucky for them it's a Cat rental machine and they have brought another dozer out while this one is down , the first 5 days they went without a machine , the operator has been filling me in on what has been going on , they changed some brake sensors then the computor , did some software upgrades or flashes with the laptop and changed some wiring harnesses and it still isn't right , they thought it was right once and it lasted for 1 hour , I would bet the repair cost at this point is some where between $10 and 20 thousand dollars if you or me had to pay for itThat's just silly!
Why don't they need to do the same on the newer common rail diesel cars? pretty sure they don't expect you to get a chicken to pee in the cat every day
I too don't like the computers on computers, in an industrial aplication as these engines are, less is more. I have heard of stories of a brand new compressor with computer engine management being delivered to a job site. It refused to run, the service guys had to come out with a laptop, still couldn't get it to go. A plain old style diesel would have rattled away all day without an issue.
Lucky its a rental, if i owned it and had to pay the service guys to 'fix' it, or appear to, i'd not be happy at all!
Plus the down time, even though it was a day, it still costs money.
Ok, so I have a question about this urethia, do you have to add it to the tier 4 bobcats only, or is it to all the new bobcat skidloaders?? I have on order a s 750 that was suppose to be here in january, but still not here and the motor in it is a tier 3 so I am wondering if I am going to be adding this urethia to the skidloader all the time.
I think it is only on Tier 4 machines that are going to be 2012 models it is also going to be on pickup and large trucks with diesel engines
My brother, a trucker, says it comes up to about $15 per l000 gallons of fuel for the additive. but that may not be with all engines either.
OldMachinist
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I was doing a little research on tier 4 and urea and ran across this.
Does the John Deere solution require urea? |
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Urea, a second fluid, is required for an alternative NOx reduction system called selective catalytic reduction (SCR). The SCR system injects liquid urea into the exhaust stream to reduce NOx. While it is effective, it also requires that the vehicle or machine be fitted with a separate tank, a sophisticated urea injection system, and a tamper-proof diagnostic system required by regulation. Since urea freezes, heating systems for the tank and delivery lines are required. In addition, currently urea is not conveniently available in many parts of the world, especially for off-highway applications, which creates availability and storage concerns. Most importantly, operation of John Deere's cooled EGR solution does not require any operator intervention. The operator doesn't have to deal with the cost and hassle of a second fluid. SCR may be an appropriate technology for the future when the technology is more developed for off-highway applications; however, for Interim Tier 4/Stage III B, the cooled EGR and exhaust filter technology approach provides the proven, best value product to the end-user. Since the John Deere Interim Tier 4/Stage III B solution does not use SCR, urea is not required. |
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skidsteer.ca
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My bud up in Fort Mac got a new Chev diesel last winter for a company truck. The urea tank is outside and has been frozen most of the winter. Still waiting to here how it plays out.
A recent worksaver had Bobcat singing the praises of tier 4 to soften up the consumer. I'm pretty skeptical on this one.
Ken
Some things I heard about this deal in the last few days I know a guy who has a new Volvo truck with the system he says he has to fill the tank every 3 tanks of fuel , I didn't ask how be his tank was so I don't know the percentage of consumption , he was buying it from Ryder Truck Rentals as they were the only ones in the area that had it at $5 and some change per gallon , he found a source that ships it to him at almost half the price in a plastic 55 gallon drum a little over $3 per gallon , it is so corrosive it can not go in a metal drum , the tank on the truck is plastic and all the tubes are stainless steel , it is also very flamable ------ I was talking with a dealer's service manger and I am hearing talk of retro fit kits for machines already in the field and talk of dealers not being allowed to work on machines that have not been retro fitted this does kinda fit into what I am seeing already from Catapillar , if you need a engine rebuild or replacement over the counter or in the shop , they will not sell you an older Tier motor , it has to be upgraded to the newest Tier
I talked to my bobcat dealer today and asked if the new machine I have on order (s750) would have this tier 4 motor in it and he said he was just leaving the bobcat plant from a show they had there and for the 2011 machines they will not be the tier 4 and will not need the urea in it. To me that is good news saves alot of money in the extra fluids. He also said the 2012 machines will be standard with the tier 4 and the machines will be going up 15-20% in cost also.
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