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Thread: Re-Gen System on new diesel engines

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    Default Re-Gen System on new diesel engines

    My department recently took a delivery of a new Sutphen Monarch. The rep from Sutphen came down with the truck and put the drivers from the station it will be going through a class to help familiarize us with the truck and all of the components. We went over the new Re-Gen system that is being put on new diesel engines. There is an option on the system where you can select to have the truck Re-Gen itself while you are going down the road as long as you are above 1100 RPMs. The rep said that this prevents the need to shut down
    Can anyone that has been running one of these trucks with Re-Gen give us insight on a policy or procedure that you are using for running the Re-Gen system?

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    We've been running an E-ONE with an International chassis and power plant since October. It hasn't had to regen once yet. There is a manual override so you can skip it if you're on a scene, our rep said that if you have to use the override it's best to run the regen ASAP afterward.

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    Ours has a Cummins. From what the rep told us it would have to perform the Re-Gen more frequently than a few months.

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    The re-gen cycle will vary of course due to use.

    I drive a Sutphen every 3rd day as well as sell them.

    On the lower left, you've got 2 switches. I can't remember exactly what they are, but the outside button is for manual regen and the inner is for lockout of the passive/auto regen.

    The inner switch should be kept in the lower position. When it is in the upper position, this does not allow the computer to initiate regen on its own. If this switch is left in the up position, you will eventually get a stop engine and it will derate. This will result in a tow bill to Cummins facility.

    The outer switch has a locking tab like the starter button. This is for manual regen. You cannot force a regen if it is not needed. If you get a regen recommended light/msg...you can manual regen then. Some departments have elected to attempt a manual regen every week or so.

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    We regen when it is opportune after the regen light comes on on the dash.

    In my experience it has to be done about every 2 weeks depending on usage.
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    Quote Originally Posted by FyredUp View Post
    We regen when it is opportune after the regen light comes on on the dash.

    In my experience it has to be done about every 2 weeks depending on usage.
    This is pretty close to our experience as well. We most often try and run the "running regen" by taking the engine for an approx. 15 mile trip as soon as we see the initial indicator. I'm not sure why we do the running regen over the static regen, but that's been the first choice of our maintenance officer.

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    I'd get it out on the highway for about a 20 minute ride..

    I have Cummins Insite on the laptop, and a full parked regen usually takes north of 30-40 minutes if I recall. The whole time you have your fingers crossed the body builder properly insulated all the wiring etc as you watch the exhaust temps creep up to about 1200 F.

    That said, I have three '09 model trucks at our busiest stations, and have only had to do maybe 4 parked regens between the lot of them over the years.
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    Re-gen: our new e-one has that regen system; you have to do it every 4 or 5 days, it takes 45 minutes, any interruption and you start from scratch, I'm in the city so leisurely road trips at 1100 rpms are out of the question, and as time draws near, your rig will run like crap and it stinks.
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    It is not practical for us to take a "Road trip" to regen so we always do the parked regen. I may be wrong but I don't remember it ever taking more than a half hour to do.

    Frankly, I think the whole regen thing is stupid and fuel wasting. So either way, whether you do a parked regen, or go gallivanting for either a 15 mile trip or a 20 minute ride as some had said, it is a fuel wasting endeavor. You purposely have to expend fuel to clean the system, hence burning more fuel, meaning more oil has to be pulled from the ground, transported to a refinery, made into diesel fuel, then transported to the fueling station, whether municipal or a private business and in the end put into the fire apparatus. How much more polution is created by all of that necessary to bring the extra fuel for all these regen vehicles across the country?
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    The regen is becoming a huge reason many departments are refurbing older rigs to save fuel. Why is it we in the emergency services have run power plants that risk our ability to do a job?

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    We appear to the be the exception to the rule. We've had our re-gen (SCR-equipped DD13) for a year now, and in that time, my shift has only had it re-gen once. We average 10 runs a day and have some fairly straight runs, although our first-due is only about 5 miles. We do have to top off the DEF tank about every four days.

    Don't forget that the EPA made modifications to the requirement for fire apparatus re-gen last year: EPA Reverses Fire Truck Engine Regeneration.
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    Why is it that Pierce Mfg is the only fire truck builder offering the DD motors ? All others are selling apparatus with the Max Force or Cummins power plants !

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    Pierce and Detroit Diesel have an exclusive partnership.
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    Quote Originally Posted by Woodbridge View Post
    Why is it that Pierce Mfg is the only fire truck builder offering the DD motors ? All others are selling apparatus with the Max Force or Cummins power plants !
    Remember...it's a MERCEDES motor with Detroit Heads. No "old school" Detroit's anymore due to EPA.

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    We have a 2009 KME and we just wait for the light to come on for Re-gen.....So far so good ........
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