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09-06-2012, 08:30 AM
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#1
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Senior Member
Monaco Owners Club Holiday Rambler Owners Club
Join Date: Oct 2010
Location: Tulalip, WA
Posts: 946
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Why "Air Dump"?
We are getting ready to go Full Timing in 3 days and I have been reading all the good info. that our fellow experts have given and I want to thank one and all.
I halfway understand the diesel,and most of the thousand switches and buttons inside and out on our 2006 Holiday Rambler, but something I still don't understand is "Air Dump".
What is the purpose of an air dump system?
__________________
Don't pray for a blessing--Pray to be a blessing.
2006 Holiday Rambler Endavor 40 footer
Tulalip,WA
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09-06-2012, 08:36 AM
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#2
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Senior Member
Join Date: Aug 2010
Posts: 455
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On those motorhomes that have air bags for suspension, "dumping" the air bags lowers the motorhome. This shortens the distance the jacks need to extend when leveling the motorhome.
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Stik
Full Timing since 2005
09 Journey 34Y, 2015 Grand Cherokee Toad
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09-06-2012, 08:46 AM
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#3
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Senior Member
National RV Owners Club
Join Date: Feb 2012
Location: Spokane Valley, Wa
Posts: 1,987
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It also allows for leveling without the air bags pulling the axles up.
It is not good for the air bag attachments for this to be done.
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Art
1999 Trade Winds 7371 Cat 3126B w/current upgrades
1990 D 250 Dodge Ram Cummins Turbo
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09-06-2012, 09:19 AM
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#4
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Administrator in Memoriam
Newmar Owners Club Retired Fire Service RVer's Spartan Chassis
Join Date: May 2000
Location: Newark, DE
Posts: 25,898
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It also places your steps closer to the ground.
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Adios, Dirk - '84 Real Lite Truck Camper, '86 Wilderness Cimarron TT, previously 4 years as a fulltimer in a '07 DSDP
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09-06-2012, 09:33 AM
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#5
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Senior Member
Newmar Owners Club
Join Date: Jul 2011
Posts: 3,479
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It's a shorter fall to the ground when you trip over your dog at the top of the stairs.
__________________
2021 DSDP 4326 Freightliner
2023 Winnebago ERA 70A
2005 KSDP 3910 Spartan
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09-06-2012, 10:51 AM
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#6
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Senior Member
Gulf Streamers Club
Join Date: Jan 2012
Location: Cincinnati
Posts: 19,925
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Plus it's just cool to pull into a campsite with all eyes on the newbie to make a show of releasing air and squatting the bus. 
Because you can. 
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Bob & Donna
'98 Gulf Stream Sun Voyager DP being pushed by a '00 Beetle TDI
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09-06-2012, 11:04 AM
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#7
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Senior Member
Join Date: Jun 2012
Location: Boerne, TX
Posts: 348
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So when you park for overnight, you dump the air? Do you dump when refueling or stopping for a bite to eat?
Thinking of a diesel that has air suspention and "dumps".
__________________
USAF Ret. Sony Corp. Ret.
1999 Bounder 34J, Ford V10
Boerne, TX
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09-06-2012, 11:10 AM
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#8
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Administrator in Memoriam
Newmar Owners Club Retired Fire Service RVer's Spartan Chassis
Join Date: May 2000
Location: Newark, DE
Posts: 25,898
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You would only dump the air when setting up camp, when you are going to use the leveling jacks.
There is no need to dump for temporary stops.
__________________
Adios, Dirk - '84 Real Lite Truck Camper, '86 Wilderness Cimarron TT, previously 4 years as a fulltimer in a '07 DSDP
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09-06-2012, 11:41 AM
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#9
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Registered User
Monaco Owners Club
Join Date: May 2009
Posts: 3,198
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Quote:
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Originally Posted by USMCRET
It's a shorter fall to the ground when you trip over your dog at the top of the stairs.
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you've done that too?
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09-06-2012, 11:42 AM
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#10
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Registered User
Monaco Owners Club
Join Date: May 2009
Posts: 3,198
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Quote:
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Originally Posted by BFlinn181
Plus it's just cool to pull into a campsite with all eyes on the newbie to make a show of releasing air and squatting the bus.
Because you can. |
yup.
I usually help release the air by stroking the brake pedal repeatedly. Makes really cool sounds!
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09-06-2012, 03:51 PM
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#11
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Senior Member
Newmar Owners Club
Join Date: Jul 2011
Posts: 3,479
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Quote:
Originally Posted by JimM68
you've done that too?
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I USUALLY exit upright and facing forward, but that hasn't always been the case. I actually did trip over the dog once, resulting in an impromptu impression of a breech birth.
__________________
2021 DSDP 4326 Freightliner
2023 Winnebago ERA 70A
2005 KSDP 3910 Spartan
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09-06-2012, 04:24 PM
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#12
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Senior Member
Join Date: Jun 2012
Location: The Bluegrass State
Posts: 8,889
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__________________
Good Luck, Be Safe and Above All, Don't Forget To Have Fun 
Pete
Central Kentucky
2006 Fleetwood Discovery 35H, 2014 Honda CR-V, M&G Engineering Braking System
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09-06-2012, 04:27 PM
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#13
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Senior Member
Join Date: Feb 2010
Location: Sunnyvale, CA
Posts: 1,195
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I've done the brake thing (my coach doesn't have an air dump system) but it doesn't seem to lower the coach unless I lift it on the jacks, and then lower it -- but that actually causes the coach to shift forward (because of the trailing arm suspension geometry) which dragged the jack stands -- so I only did it once.
But it sure is nice. I have put installing airdump and leveling on my list 
Steve
__________________
The Green Machine -- 2000 Mountain High Coachworks Summit (Spartan chassis / Cummins ISC)
...and F-Troop: Fearghus, Fiona, and Frankie (Cairn Terriers)
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09-06-2012, 04:53 PM
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#14
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Senior Member
Gulf Streamers Club
Join Date: Jan 2012
Location: Cincinnati
Posts: 19,925
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A good air dump helps dust off the parking pad too.
__________________
Bob & Donna
'98 Gulf Stream Sun Voyager DP being pushed by a '00 Beetle TDI
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