[A/S] tag axel air bags

["lorca56601" <lorca@xxxxxxxxx>]

Hi,  I love lurking on this group site.  I have a question that 
perhaps someone can help me with.

We have a 345 1988 Classic Motor home with a tag axel and air bags.
When we first got it the motor seemed to run too long to fill the 
bags so we had the motor rebuilt.  It seemed that that improved the 
time it took to restore the air.  But once again after only 2 years 
it is taking up to 10 minutes to refill the bags once we arrive and 
level the rig.  I searched for info but all I could find is that the 
bags can last up to 20 years if taken care of and are inspected often.  
I am dense I guess but I want to know what to do to care for them and 
what to look for when inspecting them.  Any help would be appreciated.  
We are 250 miles from an airstream dealer and have no RV repair shops 
up here in the middle of no where in Minnesota.