Date registered: Oct 2009
Vehicle: 2015 Rubicon Unlimited (Let the shame be upon me!)
Location: Long Island, NY
Mentioned: 0 Post(s)
Quoted: 169 Post(s)
From the UGN International Sales material:
"220.127.116.11 Tyre pressure control system (code A30)
The tyre pressure control system is an electropneumatic system installed on the vehicle for tyre inflation and deflation on the front and rear axle.
The inflation pressures can also be changed while driving.
The tyre pressure control system is pneumatically actuated via auxiliary consumer connection 24 on the 4-circuit protection valve. The compressed
air for tyre inflation is supplied via a branch upstream of the 4-circuit protection valve (high pressure 18.3 bar)."
From the UGN U500NA Options List:
Tire inflation/deflation at front and rear axle can be controlled separately or together,
LCD display at instrument panel
Tire air-supply line connected to tire via axle body; can be controlled while vehicle is in
Off-road operation: improved off-road capabilities, better traction and minimized surface
damage due to low tire pressure
On-road operation: improved handling, lower tire temperature and reduced tire wear at
Optimized tire pressure can be guaranteed in every situation: lower tire wear and higher
Specifically applicable for fire-fighting, utility, and agricultural operations"
The attached pictures are from the U500NA options list and are not at all very good. I would have to assume that there must be a check valve somewhere in the mess to allow you to change a wheel without horror.