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Backup air compressor on coach
#1

How do you all air your tires when traveling? Is there a way to use the coach air? Or do you carry a portable air compressor to air tires and use as backup to open the door etc if main compressor fails?

How big of a compressor do you need to air the tires to 120 psi?

Mike & Jeannie Ginn
2000 Newell #555 - sold July 2020
2019 Leisure Travel Van FX model
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#2

I carry a pancake compressor that shuts off at 150psig. I need 125 in the steer tires.

Russ White
2016 Winnebago Vista LX 30T
#530  ( Sold )
1999 45' Double Slide - Factory upgrade 2004
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#3

(11-17-2016, 07:58 PM)RussWhite Wrote:  I carry a pancake compressor that shuts off at 150psig.  I need 125 in the steer tires.

I was looking at air compressors tonight and I was not sure what it took to air the tires, most seemed to have a max psi usually around 135, and then xxx cfm @ 90 psi. With such large tires does the tank size and cfm matter?

Mike & Jeannie Ginn
2000 Newell #555 - sold July 2020
2019 Leisure Travel Van FX model
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#4

(11-17-2016, 08:05 PM)Jmginn78 Wrote:  
(11-17-2016, 07:58 PM)RussWhite Wrote:  I carry a pancake compressor that shuts off at 150psig.  I need 125 in the steer tires.

I was looking at air compressors tonight and I was not sure what it took to air the tires, most seemed to have a max psi usually around 135, and then xxx cfm @ 90 psi. With such large tires does the tank size and cfm matter?

You can connect your electric compressor to your coach system, it will take a while to build whole system up to 135-150 psi, but then you will have enough volume to fill at least one tire before compressor drops below 125 psi and you refill system again. A "t" from compressor to coach fill in rear compartment to hose will allow you to do this.

2003 foretravel designer series. previous 2000 foretravel 34 ft, isc 350, 1995 45 ft Newell coach 385, Foretravel [2], 4106, 4905, wayne bus, wanderlodge fc, gmc motorhome.
toads: 2011 honda fit sport, Yamaha Zuma 125, Suzuki tu250.
daily drivers: boxster and cayenne
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#5

You could get an air doubler and use a lower psi compressor.
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#6

There are a few pancake style compressors that go to 150 max. If you go that route, then make sure you get a 150 max. Very little air is required to top off a tire, so cfm is not the issue.

As Clint said, most of us have a doubler, supplied by Newell. It takes the coach air, and essentially doubles it. The principle is simple, it's a reciprocating piston design. One the coach air side, the piston has twice the surface area of the outlet side. As the piston moves back and forth, it can double the air pressure.

Here is a pic of one. http://www.alliedelec.com/smc-corporatio.../70070558/

I would check with them first to see their pricing.

Richard and Rhonda Entrekin
99 Newell, 512
Maverick Hybrid Toad
Inverness, FL (when we're home Cool )
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#7

I got ours on e-bay at a very substantial savings.
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#8

I would be cautious about building my entire coach system that high. I think most of the systems are designed to operate at a lower pressure and that could cause damage.

Forest & Cindy Olivier
1987 log cabin
2011 Roadtrek C210P
PO 1999 Foretravel 36'
1998 Newell 45' #486 

1993 Newell 39' #337 
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#9

A quick search on ebay for SMC NVBA1110-T02GN (thanks to Richard for the number) shows prices range from $130 direct from Chine to $200 in Texas and on up, and up.
All you would need are quick connects and a short whip hose, gauge is optional. These really do work great. When we were traveling I could have sold mine many times for double the price when someone would walk over.

Forest & Cindy Olivier
1987 log cabin
2011 Roadtrek C210P
PO 1999 Foretravel 36'
1998 Newell 45' #486 

1993 Newell 39' #337 
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#10

Mike, I would be surprised if your 2000 year coach does not have the "doubler" that Richard describes. Loon in the area of your engine fuel filter.

2001 Newell #579
tow a Honda Odyssey
fun car: 1935 Mercedes 500K replica
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