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 😳
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.
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
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.
We have a red air hose. It has a valve like you'd find on an outside water spigot that needs to be opened.
It is not quite as easy as you might think........watch this video.
https://www.youtube.com/watch?v=QDOqCk6dTuo
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.
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.
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