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12-22-2016, 06:24 PM
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#1
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Senior Member
Monaco Owners Club Holiday Rambler Owners Club
Join Date: Sep 2007
Location: SE MI
Posts: 759
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Height Change after Air Dump
I've rv'd in all types except the DP which we purchased 3 months ago. The 03 Neptune is at Cummins until next week so I can't check this on my own.
How much does the height of the MH change when it is air'd up for travel and when the 'Air Dump' has been done prior to the leveling process.
I understand the reason and function of the air ride measurement and the need to check annually. Also the reason to dump before leveling and after slide extension.
Have searched but can not find this measurement. Some have stated it drops to the point you never want to be under in any area when dumping. Also to check for obstacles that might hit the trans when dumping. Others have stated it is only a problem in certain spaces.
I know my receiver height is going to change in the two situations and am wondering by how much. I also realize it will be different for all units but an average is my query.
Thanks for the help.
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Dale, Mary and Oreo the Malshi
03 36PBD Monaco Neptune 'The Beast'
18 Focus
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12-22-2016, 06:31 PM
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#2
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Senior Member
Monaco Owners Club
Join Date: Jun 2014
Posts: 14,497
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My Windsor will drop about ~5 inches when I dump the air.
When preparing to leave I'll start the engine to build air pressure and do a walk around. When I clinch my fist I can't get it between the tire and wheel well. Once all the bags are inflated I can fit my fist between tire and wheel well & I know I can leave.
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Jim J
2002 Monaco Windsor 38 PKD Cummins ISC 350 8.3L
2005 Jeep Grand Cherokee w/5.7 Hemi
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12-22-2016, 06:51 PM
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#3
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Senior Member
Monaco Owners Club Holiday Rambler Owners Club
Join Date: Sep 2007
Location: SE MI
Posts: 759
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jacwjames: Thanks That is exactly what I was looking for. Now I have an idea and what to look for when the beast comes home.
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Dale, Mary and Oreo the Malshi
03 36PBD Monaco Neptune 'The Beast'
18 Focus
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12-22-2016, 07:25 PM
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#4
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Senior Member
Monaco Owners Club Workhorse Chassis Owner
Join Date: Aug 2006
Location: MotherLoad foothills approx.60 m.s east of Sacramento
Posts: 1,281
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X2 on 5-6 inches. I use my fatboy tire thumper to measure the space above the tire. It don't fit, I don't move.
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Full time since Nov 2012 RVM#41 Gary and Marian Hill 2001 Monaco Dynasty Jack 38' 370 hp ....If it ain't broke I can still fix it.
Like putting shoes on an octopuss, so are the days of our lives....
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12-22-2016, 07:45 PM
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#5
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Senior Member
Newmar Owners Club
Join Date: Jul 2016
Location: Somewhere out west
Posts: 467
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I actually got on the roof with a tape measure and a level, with a friend on the street, and we measured aired up and dumped, front and rear. The difference was a consistent 5" all around. Overall height measured at the a/c units was 12'1" dumped, 12'6" aired up which interestingly enough is several inches less than Newmar quotes for the overall height.
And I STILL managed to snag a low wire driving through Gainesville GA. Can't believe I didn't rip it down, but it luckily it popped off. Only damage was the wiring rubber boot on the TV antenna and a popped rear bath vent cover.
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Mark, Peggy and Samson on the road full time
2016 Newmar Ventana 3709 and a 2016 Subaru Crosstrek
Real Life in the Cloud
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12-22-2016, 08:16 PM
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#6
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Senior Member
Join Date: Dec 2009
Location: Out there, somewhere
Posts: 9,899
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Our '04 Itasca Horizon 36GD with the C-7 330HP CAT and, the Freightliner Evolution chassis, drops exactly 4" when prepping for leveling operations. On ours, we've got two ride height valves in the rear and one in the front.
Scott
__________________
2004 ITASCA HORIZON 36GD, 2011 GMC Sierra 1500 4x4 Toad '20 Honda NC750X DCT
Retired-29.5 yrs, SDFD, Ham - KI6OND
Me, Karla and the Heidi character, (mini Schnauzer)!
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12-22-2016, 08:24 PM
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#7
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Senior Member
Monaco Owners Club Holiday Rambler Owners Club
Join Date: Sep 2007
Location: SE MI
Posts: 759
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Looks like I might need a 5-6 inch drop receiver for the toad. That is to stay within the +- 4" Roadmaster wants.
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Dale, Mary and Oreo the Malshi
03 36PBD Monaco Neptune 'The Beast'
18 Focus
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12-22-2016, 11:20 PM
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#8
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Senior Member
Join Date: Jan 2008
Location: D/FW Texas
Posts: 767
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noeldale,
I have a 2003 Monaco Cayman, sister to your Neptune. Our coaches are on the R4R rail chassis, not a "raised rail" chassis like the others that have replied. Your chassis does not drop the same as the other posts suggest. On the rear you will get a 3-1/2" to 4" drop max at best. Mine is about 3" to 3-1/2" drop.
Mike H
__________________
Mike & Debbie
2003 36' Monaco Cayman
2007 Saturn Vue "pusher"
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12-23-2016, 04:41 AM
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#9
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Senior Member
Monaco Owners Club Holiday Rambler Owners Club
Join Date: Sep 2007
Location: SE MI
Posts: 759
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Mike, thanks. Still learning about these things. Seems like they are all custom to a point yet have some similarities.
I get it home next week and will know then but the search is half the fun.
__________________
Dale, Mary and Oreo the Malshi
03 36PBD Monaco Neptune 'The Beast'
18 Focus
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12-23-2016, 01:45 PM
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#10
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Senior Member/RVM #90
Monaco Owners Club
Join Date: Nov 2002
Location: Columbus, MS
Posts: 54,626
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About 4-5 inches on my Windsor!
__________________
Joe & Annette
Sometimes I sits and thinks, sometimes I just sits.....
2002 Monaco Windsor 40PBT, 2013 Honda CRV AWD
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12-23-2016, 02:27 PM
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#11
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Senior Member
Newmar Owners Club Workhorse Chassis Owner Spartan Chassis
Join Date: May 2010
Location: McAlester Ok
Posts: 2,057
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Newmar KSDP. Dump goes down 4-5".
Recently had Level system, failure. Tech installed a switch so that I could manually dump, or air up bags. The switch was located in the electrical compartment under the drivers seat. To air up I had to hold the rocker switch until the system was fully inflated. I Took a string and heavy 2" metal washer, and made a gauge. I held the string end in the top center of the front wheel well, when the washer was no longer touching the ground, the system was full.
Now that the level system is repaired. Start the engine, and listen for the air system to " whoosh". It is full and inflated when you hear that sound.
P.S. I kept the string and washer, hope I never need it again...put I got it if I ever want to check it manually.
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2007 Newmar KSDP. 3912
2010 Nissan Frontier SE
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12-23-2016, 03:01 PM
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#12
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Senior Member
Join Date: Jan 2008
Location: D/FW Texas
Posts: 767
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noeldale
Are thinking you need a drop hitch to hook up your toad? If your using a motorhome mounted tow bar, with the coach at ride height, you shouldn't need a drop hitch. Towing our Saturn which is similar to your Malibu there is about a 1 inch difference between the coach and the Saturn, the Saturn being the 1 inch lower. Leaving the toad attached and dumping the air shouldn't affect or make a difference on the tow bar hook up. We frequently leave the toad connected when we stop for the night while traveling with no problems.
Mike H
__________________
Mike & Debbie
2003 36' Monaco Cayman
2007 Saturn Vue "pusher"
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12-23-2016, 04:58 PM
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#13
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Senior Member
Monaco Owners Club Holiday Rambler Owners Club
Join Date: Sep 2007
Location: SE MI
Posts: 759
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Bubba1
The receiver is at 18.125 with the connection at the Roadmaster at 16. This is with the air dumped. If it airs up and I have receiver at 22.125 I will then have 6 inch difference and would need to get it within the 4 inch recommended.
That is if I understand this all correctly. I'll measure when it gets home mid-week. Will not be taking the toad to AL in Jan but will need the setup done by May.
__________________
Dale, Mary and Oreo the Malshi
03 36PBD Monaco Neptune 'The Beast'
18 Focus
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12-23-2016, 05:04 PM
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#14
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Senior Member
Join Date: Feb 2015
Posts: 1,977
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Hi guys,
When the coach builder lists in the brochure a coach is 12'-10" is that aired up? I've never been that great at math but it looks to even a casual observer, If you go up 5" that becomes 13'-3" in a hurry!
The 12'-10" is the coach with full airbags and ready to go right?
Mike H brought up a question I never thought about. Do you hook up your toad before or after you air up?
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