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03-19-2019, 07:47 PM
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#1
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Senior Member
Newmar Owners Club Spartan Chassis
Join Date: Jun 2017
Location: Marblehead, OH
Posts: 215
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Rusty fluid spray after 'aired-up' after starting
Taking my 2016 DSDP 4362 out of 50° winter heated storage (after 10w.) and after 'airing up' and it hissed, rusty fluid sprayed onto the wheel - twice, before then after shutting down to inspect, finding nothing obvious? Thoughts? 6300 miles on coach[ATTACH]  [/ATTACH]
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Steve, Erin & Stella Marie (English Bull Terrier)
2018 Newmar 4362 / Blue Ox Avail
2018 Grand Cherokee Ltd.
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03-19-2019, 07:59 PM
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#2
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Senior Member
Join Date: May 2017
Location: Vancouver Wash
Posts: 7,227
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Probably had water in compressor tank at one time....air compressor tank not drained....
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03-19-2019, 08:39 PM
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#3
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Senior Member
Newmar Owners Club Spartan Chassis
Join Date: Jun 2017
Location: Marblehead, OH
Posts: 215
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Thanks Bob!
Is this something I should drain, or not an issue?
Steve
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Steve, Erin & Stella Marie (English Bull Terrier)
2018 Newmar 4362 / Blue Ox Avail
2018 Grand Cherokee Ltd.
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03-19-2019, 09:19 PM
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#4
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Senior Member
Join Date: May 2017
Location: Vancouver Wash
Posts: 7,227
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I was talking about a shop air compressor......not an onboard one, if you have air brakes and use that system....for airing up tires..but those on board type also need to be drained.....
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03-19-2019, 09:52 PM
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#5
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Senior Member
Join Date: Aug 2001
Location: North America somewhere
Posts: 30,982
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Quote:
Originally Posted by Contender
Thanks Bob!
Is this something I should drain, or not an issue?
Steve
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Follow the air tank drain schedule in the owners manual.
Most chassis have automatic moisture drains these days, but the manual drains should be pulled per the schedule anyway.
Now the bad news; if there is moisture in the air tanks the air dryer desiccant filter is overdue for replacement.
If that is ignored it can allow moisture into the air brake system, which can cause expensive problems as well as brake failure in an extreme case.
All that said, I doubt those rust spots are from your MH air system.
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2000 Winnebago Ultimate Freedom USQ40JD , ISC 8.3 Cummins 350, Spartan MM Chassis. USA IN 1SG 11B5MX,Infantry retired;Good Sam Life member,FMCA. " My fellow Americans, ask not what your country can do for you, ask what you can do for your country. John F. Kennedy
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03-23-2019, 05:01 AM
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#6
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Senior Member
Join Date: Jan 2017
Posts: 464
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I think the automatic air discharge is in the rear so unless you have a leak you should not be getting a front discharge. Did it hold the air overnight? Put some newspaper under the manual tank discharge before fully discharging and see if you have rust or water that comes out of either tank.
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2017 Newmar Dutchstar 4369
Spartan - ISL 450 Cummins
2016 Jeep Grand Cherokee tow
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03-23-2019, 06:34 AM
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#7
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Community Moderator
Monaco Owners Club
Join Date: Jul 2016
Location: Central, Arkansas
Posts: 11,294
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Quote:
Originally Posted by Ray,IN
Follow the air tank drain schedule in the owners manual.
Most chassis have automatic moisture drains these days, but the manual drains should be pulled per the schedule anyway.
Now the bad news; if there is moisture in the air tanks the air dryer desiccant filter is overdue for replacement.
If that is ignored it can allow moisture into the air brake system, which can cause expensive problems as well as brake failure in an extreme case.
All that said, I doubt those rust spots are from your MH air system.
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And in the winter while your basement is nice and toasty, water in the air lines can freeze and you will be unable to move the coach with out idling it for hours waiting for it to thaw out.
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2004 Beaver Monterey Laguna IV
Cummins ISC 350HP Allison 3000 6 speed
2020 Chevy Equinox Premier 2.0t 9 speed AWD
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03-23-2019, 06:46 AM
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#8
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Senior Member
Join Date: Nov 2005
Posts: 7,400
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Here are a few thoughts: 1-regardless of source, compressing ambient air will cause water vapor to condense; 2-a portable inflator doesn't have a tank but water can condense in tire; 3-a portable compressor has a tank and must be drained periodically; 4-your on board compressor has reserve tank[s], so they must be drained; 5-if water spit out when filling your tires, either you have water in the tire or water in your compressor; 6-as stated, water in a tire is bad, water in your on-board compressor and air system will, over time, be really bad.....
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Old Scout
2015 IH45 Foretravel
2003 Alpine 40' MDTS [Sold]
New Braunfels, Texas
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