Skip to main content ↑ ↓
Topic: Air Hose for Tires? (Read 751 times) previous topic - next topic

Air Hose for Tires?

Please I guess I was not inserviced well when we picked up our 2012 Nimbus. You all have been wonderful.
The back right tires are about 10 psi less than the left. I was going to put air in. Can I use the red hose in the hold? No air comes out when I press, am I to have the rig on or is there a valve somewhere?
Please help we are 1200 miles from home 😳

Re: Air Hose for Tires?

Reply #1 –
Maybe they compensated for the weight of a slideout, IDK.
I'm not familiar with the red hose, but if your lowest pressure tires have the minimum or greater PSI for the axle weight then I would let
some air out of the higher pressure tires so they all match......................if that's what you want to do.

Re: Air Hose for Tires?

Reply #2 –
normally in the utility bay forward where the propane would be is a hose connection to your air system on the bus. If you are all electric, I wouldn't know where they hide it

Will be slow with the pump on the coach, and max will probably be 110 PSI

Tim Fiedler
Tim Fiedler    2025 LTV Unity MBL on Order
2000 Chevy Tracker 2 Door Convertible 4WD Now lifted 4.5"
1985 Citroen 2CV6 Charleston
Murphy Rebel on wheels with 175HP Titan
Cessna P337
1980 48' Westport MY (!/4 Share)

Re: Air Hose for Tires?

Reply #3 –
It sounds like you found the air hose. The coach will need to be running and the hose will need to be plugged into the quick disconnect. Also check to make sure there is not a shut off valve before the quick disconnect.
previous 1984 35 ft ORED 250 HP 3208 Cat       
previous 1998 40 ft U295 CAI 325 hp Cummins
previous 2003 40 Ft u320 build #6140 450 Cummins M11.                                                         
1999 Mazda Miata
Ron, Nancy, Tipper the cat, Max The dog
1997 U 270 36 ft build number 5174 8.3 Cummins

Re: Air Hose for Tires?

Reply #4 –
We have a red air hose. It has a valve like you'd find on an outside water spigot that needs to be opened.
1993 U300 40ft GV SE
Build # 4344

Re: Air Hose for Tires?

Reply #6 –
All tires on the same axle should all have the same pressure, chosen by the heaviest weighted tire.  Until you have each wheel weighed, use the pressures listed on the placard next to the driver's seat.  Using high idle will speed the airing up process.
Regards,
Brett

'99 42' Foretravel Xtreme
'14 Brown Motorsports Stacker
'05 Chevy SSR
'02 BMW R1150R

Re: Air Hose for Tires?

Reply #7 –
Quote from: Twig –
It is not quite as easy as you might think........watch this video.

https://www.youtube.com/watch?v=QDOqCk6dTuo
Probably not the best practice to pump the service brakes when the emergency spring brakes are applied.  I exchange an air gun nozzle with the air chuck to activate the engine compressor wait to hear the purge on the air dryer knowing it's at 120psi than top off.
Doug W.
96 36' U270 CSGI #4946
04 Toyota Tacoma 4x4
PNW
 

Re: Air Hose for Tires?

Reply #8 –
Changing the D2 valve to a higher pressure setup gives two benefits.

Stronger brakes.

More air pressure to air up tires.

Mine is 110/132 or so.

Looked at my sidewall panel showing the then current tires pressure.

100 single. 90 dual.

Fast forward 20 years.  Load range H Xza-3+

Calculated and tested at 97 single. 87 dual
"Riding and rejoicing"
Bob
1997 U320 40' Mid entry, build 5132,  wtbi ce27, 4th owner
2007 Solara convertible
2 prodeco tech outlaw ss electric bikes

1095 watts solar
08 Ls 460 and a sc430
2000 Ford F-250 superduty 4x4