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Old 03-14-2016, 09:18 PM   #11
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Hey guys. Had same issue with compressor noise. Took to Hans Frieghtliner in Cleveland. He said noise was normal but not having an air dryer is NOT. Jayco went on the cheap and did not install. Major problems coming as the system will rust from the inside out. Had one installed and boy is it nice. Highly recommend.
You have a pre-'16 Seneca without air brakes? Can you give us any more details on how they added the dryer? Big$$?
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Old 03-15-2016, 05:09 AM   #12
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My question is "How is it nice"?

Does it function well?
Can you see it?
How do you know its nice?
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Old 03-15-2016, 06:17 AM   #13
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You have a pre-'16 Seneca without air brakes? Can you give us any more details on how they added the dryer? Big$$?
It is a '16 with all air. About $1500 to install air dryer. Did my homework and everyone said to do it. Hard to think Jayco ordered without. Great system.
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Old 03-15-2016, 09:48 AM   #14
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To have full air brakes and not have an air dryer seems to border on negligence in my opinion. I can't believe Freightliner would build a air brake-equipped chassis without a dryer in the system. Are we sure there isn't a desiccant cartridge dryer in the system downstream of the compressor in the 2016+ units? Anytime you compress air it gets hot. Then as the air cools after leaving the compressor moisture in the air will condense. More moisture in damp climates, less in very dry. But some regardless. And also the air also can contain oil vapor (from the compressor) that also will condense.

On my hydraulic brake-equipped Seneca 100% dry air isn't as critical, but it still might cause issues later with internal corrosion of items like the the height regulating valves that inflate the rear air springs. But there are numerous components in a modern ABS-equipped air brake system that I believe could be harmed by moisture-laden air. But what is really scary to me is what might happen in subfreezing weather with moisture in the system.

In my early years as a firefighter we had some older fire trucks that did not have a modern, blow-down air dryer. Every single day right after shift change the rookie on your fire company would have to get on a creeper and go under the truck to bleed down the air tanks to remove the accumulated water. It was shocking to see how much oily water would come out. By then the manufacturers were putting dryers on the new trucks; and soon after our department's mechanics retrofitted them on the old. They didn't do it to make the rookie's life easier, they did it for safety and to prevent damage to the system components.

Something sure doesn't seem right here IMHO.
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Old 03-15-2016, 09:57 AM   #15
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It is a '16 with all air. About $1500 to install air dryer. Did my homework and everyone said to do it. Hard to think Jayco ordered without. Great system.
Did they note what type of dryer they installed, Bendix, Haldex, Wabco, etc.? Did they also tell you that the dryer desiccant cartridge would need to be replaced periodically?

Sorry to pester, but this thread really has me curious.
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Old 03-15-2016, 10:03 AM   #16
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Agreed

Robby:

I could not agree more nor could I have said my concerns post learning of the same more succinctly.

As a result, I did my "homework". First I researched the necessity of the air dryer and confirmed all that you have set forth and I suspected. Second, I called Jayco and spoke with them at length and on several different occassions. They confirmed that such was the Jayco order profile (e.g., without air dryer) and that Freightliner said that with the new, automatic purging such was not needed.

Unwilling to place my or others families at risk, I invested in the same. $1,5000 later very happy I did.

I would strongly recommend that each and every person owning a 2013 Seneca or newer look into this for all the reasons you cited and more. I do believe a $1,500 investment is money well spent here.

As for Jayco, not where I would chose to go "cheap". In time, this could prove ugly! I certainly conveyed this to them; not sure it registered.

Hoping all is well my friend. Thank you for all your amazing posts. I followed your advice and placed a 10 gal Atwood XT into service. The Girard was JUNK!

Thanks and God bless.

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Old 03-15-2016, 10:07 AM   #17
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It is a Webco and yes, they instructed interval for cartridge replacement to coincide with my annual Oil Change which I will have them handle.
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Old 03-15-2016, 10:17 AM   #18
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That is why I am so fond of this forum, friendly exchange of good information. And in this particular thread, safety and long-term reliability related.

I appreciate you bringing this to our attention; even though I don't have air brakes I feel mine should have a dryer too. We plan to keep our unit for years, and that money would be cheap insurance as compared to a road call who-knows-where when something vital fails.

I'm very lucky in that I have "skills" and the ability to ask my former fire department's mechanics their professional advice on how I should proceed should I tackle this myself. Or I may just call where you took yours and have it done. It isn't that far away.
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Old 03-15-2016, 11:59 AM   #19
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Rob:

Makes sense. I simply did not have the time nor the know how (past my pay grade). Han's did a super job. Really good guys.

I hope Jayco re-thinks this idea. It makes no sense to me. I have alerted them.

By the by, love your "extra" installs. Mine was to put in 64' of undercarriage, multi-colored LED flat strip lighting. It is simply awesome. when sitting outside, we put it on and have in fade in and out of colors. Amazing ground effects that all passing by comment on. Also, I did not know this but apparently bugs/mosquitos cannot see red thus on buggy nights we just put the red on with no attraction to the pests.

Be well.

Tom
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Old 09-07-2016, 02:15 PM   #20
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Air brake Dryer

Hi all. I'm new to the forum. We purchased a 2016 Seneca HJ37 and have had it into Freightliner repair a couple of times: 1) compressor noise -- told it was normal, 2) passenger window would not go up -- fixed under warranty and most recently 3) unusual noise that is evidently coming from compressor system. Issue 3 is still under repair. The repair shop replaced one of the air tanks because it was already rusty. That didn't fix the noise problem so they did a complete inspection and found there is no dryer for the compressor. BIG ISSUE. They said not only is it not normal to not have a dryer, it's very dangerous as the moisture can freeze up the brake lines if running in cold weather. We are feeling very lucky that this was discovered before we make a trip over any mountains this fall.

Jaycee not only went on the cheap, I'm being told they went Dangerous. Is the repair shop blowing this out of proportion or is the brake line freezing a real possibility?

Shawn
Ham Lake, MN
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