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10-27-2015, 08:35 PM
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#1
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Winnebago Owner
Join Date: Mar 2007
Location: Dacula, Georgia
Posts: 184
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Air Dryer Question
Several of you saw my post from last Sunday when my air dryer stopped moving air to my brakes. After some great information on this site I was able to bypass the dryer and my air system came up to normal levels.
I am now at home and considering the next steps for repairing the dryer. It looks as though I can buy a remanufactured one online or I can purchase the kit that many here have purchased that will allow me to rebuild it myself. Has anyone done this and how difficult is it? Thank you!
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2000 Itasca Horizon 36LD
300 HP Cat Diesel
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10-28-2015, 09:49 AM
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#2
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Winnie-Wise
Join Date: Apr 2011
Location: Powell River, B.C.
Posts: 339
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Most times removing the dryer from the chassis is the worst part of the process. Re-build instructions should come with the kit . But here's some info on the common M/H, dryers.
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99DSDP 3884, Freightliner, XC, CAT 3126B, 300 HP /ALLISON 3060
2000 Caravan toad, Remco & Blue Ox.
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10-28-2015, 10:22 AM
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#3
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Winnie-Wise
Join Date: Jun 2010
Posts: 478
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I've put the kit in mine twice and it is not a major chore if you are somewhat mechanically inclined. On mine it was pretty dirty down there but I cleaned it as best I could before removing the bolts and lines.
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Bob, Sandi & Marmaduke the Big Pug
SW OREGON 2004 Journey 39K, 330 Cat
If towing: a 2006 Mini Cooper or 1995 Wrangler
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10-28-2015, 11:00 AM
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#4
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Winnebago Owner
Join Date: Nov 2008
Location: Cosby, Tn
Posts: 124
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Quote:
Originally Posted by GaDawgFan
Several of you saw my post from last Sunday when my air dryer stopped moving air to my brakes. After some great information on this site I was able to bypass the dryer and my air system came up to normal levels.
I am now at home and considering the next steps for repairing the dryer. It looks as though I can buy a remanufactured one online or I can purchase the kit that many here have purchased that will allow me to rebuild it myself. Has anyone done this and how difficult is it? Thank you!
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I seem to remember that you said it had been 7-9 year range with no service. Since it totally quite on you, I might spring for the reman unit if it's not prohibitive. I think the kit is fairly pricy.
Steve Ownby
Full time since '07
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Steve Ownby
Full time since 2007
2003 Monaco Signature
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10-28-2015, 11:06 AM
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#5
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Winnebago Camper
Join Date: May 2014
Location: Henderson, Nevada
Posts: 18
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Kit contains canister and mostly O rings, pretty simple, use lube on the O rings.
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2005 Newmar DS 4023, Spartan Chassis, ISL 370 Cumapart, 2008 Jeep Rubicon 4dr, 2015 Kia Soul, 1969 Italian & 2004 Akita
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10-28-2015, 12:00 PM
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#6
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Former Winnebago Owner
Join Date: Jun 2008
Posts: 69
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Hi,
Where are the kits purchased? How much does the Haldex kit cost?
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Albert Irusta
2011 Itasca Meridian 34Y
2006 Jeep Liberty
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10-28-2015, 03:13 PM
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#7
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Winnebago Camper
Join Date: May 2014
Location: Henderson, Nevada
Posts: 18
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Quote:
Originally Posted by NMBluept
Hi,
Where are the kits purchased? How much does the Haldex kit cost?
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I would get online with your make and model # 
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2005 Newmar DS 4023, Spartan Chassis, ISL 370 Cumapart, 2008 Jeep Rubicon 4dr, 2015 Kia Soul, 1969 Italian & 2004 Akita
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10-28-2015, 05:41 PM
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#8
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Winnebago Camper
Join Date: Sep 2013
Location: Great Lakes
Posts: 21
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check the pricing on the parts to rebuild versus a reman unit, you may find difference may be the deciding factor.
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2005 Winnebago Journey 36G, Cat C7/350
2018 RAM 1500, Roadmaster Sterling 8k
KD3OBX
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10-28-2015, 10:26 PM
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#9
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Winnebago Master
Join Date: Dec 2009
Location: Out there, somewhere
Posts: 1,743
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Quote:
Originally Posted by GaDawgFan
Several of you saw my post from last Sunday when my air dryer stopped moving air to my brakes. After some great information on this site I was able to bypass the dryer and my air system came up to normal levels.
I am now at home and considering the next steps for repairing the dryer. It looks as though I can buy a remanufactured one online or I can purchase the kit that many here have purchased that will allow me to rebuild it myself. Has anyone done this and how difficult is it? Thank you!
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GaDawgFan,
As has been stated, rebuilding them is not all that hard. Getting them off the coach, while also not very hard, is primarily just awkward. You may need some big wrenches. I forgot what size I used but, they're not used very often due to size.
Anyway, there's at least two different models of air dryer out there in RV land and, I'd just about bet my house that yours in your model/year/chassis coach, is the same exact one as mine. And, the kit used is called a "DQ 6026" if I recall. The link below "SHOULD" be the one you'd need.
http://www.ebay.com/itm/Haldex-Midland-DQ6026-General-Service-Kit-For-Pure-Air-Plus-Air-Dryers-/371453879374?hash=item567c60644e:g:~50AAOSw42JWDX7 R&vxp=mtr
If your air dryer is what I think it is, there's more than just O-rings and one canister in it, as the link will show. I did mine in about three hours, start to finish which, included removing and re-installing it under the big beast. I paid about $65.00 on ebay for one just like that one. The packaging was just like what's described on that link but, the internal packaging for the components was unharmed and sealed.
For $85.00, that's a good deal. And, it's good for about 3 or more years, depending on how many miles you accrue and, what kind of atmosphere you primarily operate your coach in.
Scott
__________________
2004 ITASCA HORIZON 36GD, 2011 GMC Sierra 1500 4x4 Toad '08 GL 1800 Gold Wing 
Retired-29.5 yrs, SDFD, Ham - KI6OND
Me, Karla and the Sophie character, (mini Schnauzer)
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10-28-2015, 10:34 PM
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#10
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Winnebago Master
Join Date: May 2011
Location: Vancouver, WA
Posts: 560
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I never had to rebuild mine but when I replaced the cartridge on the '02 Dutch Star I looked the unit over and it looked like an easy rebuild even if done in frame. The two times I replaced the cartridge (over 13 years) I never found any moisture nor corrosion in the body of the dryer.
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2009 45' Magna 630 w/Cummins ISX 650 HP/1950 Lbs Ft
Charter Lifetime GS Member, SKP, FMCA,
RV'ing since 1957, NRA Benefactor Life, towing '14 CR-V
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10-29-2015, 08:37 PM
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#11
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Winnebago Master
Join Date: Aug 2001
Location: North America somewhere
Posts: 2,108
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I bought a repair/rebuild kit from a local HDT repair shop, they have them in-stock. BTW, their price for a new desiccant filter was lower than on the internet.
Here is the Meritor/Wabco System Saver 1200 service manual
and the maintenance manual
Here is the Haldex air system tech support site.
For buying online, anythingtruck.com has everything for an air system.
This may help with your project. As you see, they are not that complicated. The main point is cleanliness, just a speck of dirt will cause problems.
I suggest pressure-washing the underside of your MH around the air dryer before disassembling anything to remove years of accumulated road dirt and oil.
__________________
2000 Winnebago Ultimate Freedom USQ40JD, ISC 8.3 Cummins 350, Spartan MM Chassis. USA 1SG, retired;PPA,Good Sam Life member,FMCA. "We the people are the rightful masters of both the Congress and the Courts - not to overthrow the Constitution but to overthrow men who pervert the Constitution." Abraham Lincoln
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