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Illinois | I have 40 acres left on a Sunday, and tonight on a Case IH 6140 combine I received an error SCR 007, DEF injection failure. I ran for another half hour or so then began to lose power. I am assuming the engine will derate soon. Is there anything obvious I can check? Any way to get by for another half day? |
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Lee Co | We started having issues with 450 steiner on auger cart.throwing a fault for soot in exhaust. If you shut it off for a minute to re boot computer we can run again until the next fault. Dealer sent in an assist but no help yet. |
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Wallis, TX | There are 3 filters in the DEF system. One is a paper element kinda like an oil filter element on a 4 wheeler. The other two are actually strainers, in a 'housing' on the DEF module. The first screen will be right there, when you take the housing apart, the other is up in the housing. Gotta turn your head upside down to see it. Takes a small pair of needle nose pliers to get it out. That is the 'filter' that kept stopping up on my machine. Now if you restart three times with the code up you will derate to idle and have to get a laptop hooked up to remove the derate. |
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ECIL/WCIN | Exactly what he said. Third time is not the charm, it is the curse. |
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WCIN | Had the injection sensor go out on my 8230 during harvest. Derated the engine. Combine out of warranty but there is a 5 year warranty on the emissions crap. |
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| A 6140 would be a TierIVb, so things are a little different than what has been suggested here. On the CNH combines, there is a serviceable prefilter for the DEF system. It looks like a 2-3" long stainless steel filter that has a nut on one end that will allow you to disassemble it so that you can clean it. Take it apart and clean it with deionized water. It should be in the neighborhood of the DEF module(should be shown in your ops' manual as well).
You can check what the pressure of your DEF system is 2 different ways. You can either put it on a "Run" screen on your Pro700 or else you can look at it on the "Combine information" screen on the Pro700 as well. It should be at least 130psi(they usually run 140-150psi during normal operation). See what this pressure is after you clean the filter. The pressure will not build right away on a Tier IVb machine, unlike Tier IVa where the pressure would build up right after you started the engine. If the pressure reaches this spec., the system should fix itself. If it runs too long at too low of a pressure, it will derate itself and need to be reset with a laptop. Good luck! |
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| make sure you have a filter on the vent tube of the def tank. it will save you a lot of down time |
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| Have your dealer up the case limp it home kit on, the delete kit, we kept having problems so they deleted it runs like a champ now, |
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Illinois | Thanks much for the replies. SDMan, you were spot on. The prefilter was a little dirty, and cleaning it solved the problem. Pressure built to 140 about 10 minutes after start-up, and the error disappeared soon after. |
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DEF Injection Failure - Iveco engine
