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Old 03-14-2016, 02:37 PM   #1
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Air dryer

Anyone do an install on an air dryer in their Berk. Supposed to be done every 3 years.


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Old 03-14-2016, 02:56 PM   #2
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I had Gaffney do it. It is up under the chassis rail on drivers side (I think) about half way back. Looks like a big oil filter.


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Old 03-14-2016, 09:40 PM   #3
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I just did mine. I have a 2012 390bh with the bendix ad9 air dryer. Wasn't hard but the first time took me some time.


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Old 03-14-2016, 11:13 PM   #4
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Just did mine a few weeks ago. Not too bad. Removed completely from vehicle as stated in manual and used a strap wrench to loosen cartridge.


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Old 03-15-2016, 09:20 AM   #5
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What is the air dryer for?


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Old 03-15-2016, 10:17 AM   #6
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Quote:
Originally Posted by mikeborny View Post
What is the air dryer for?


Mike & Amy + 3 and the dogs!
2014 berkshire 390bh-40
Hi Mike & Amy!

As I understand it, the air dryer filter collects wet & dry contaminants before they can enter the air brake system.


However, the articles I have read on the subject seem to indicate that this filter is replaced very infrequently (especially if it is upgraded to a oil-coalescing cartridge. The articles I have read on this state that you only need to replace this type of cartridge every 200K or so -- can some more experienced Berk owners chime in here and educate me?
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Old 03-15-2016, 11:02 AM   #7
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This is from bendix website. I changed mine at 4 yrs. but it looks like they recommend 3. Easy to do and the filter is not expensive.

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Old 03-15-2016, 08:16 PM   #8
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Freightliner recommends (seen in RV soul Mag) every 3 years.


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