On most coaches with tags axles you may, with the tag axle button, raise and or just remove the downward pressure to the tag axle wheels so they will not drag on tight turns. Also some coaches with air bags may both Jacks and Air Leveling. While some will have only one or the other. Either way the best way to level a coach with air bags is as follows.
When you a parked where you want to be, DUMP your air bags.
After dumping activate either your air leveling or jacks to level your coach.
The reason you dump your air first is to lower the coach so when you start your auto leveling neither air bags or jacks will have too far to travel to level your unit. Momma does not like that last step when it is 2 feet off the ground.
Hope this helps.
"Fair winds and Following Seas"
Herman & Bobbie Mullins, F302225
'02 Monaco Dynasty, 40-foot 400 HP ISL
Chevrolet Silverado (M & G air brakes)
U.S. Navy PR-3 1956 to 1964
Southern Region Vice President for Six-State Rally Association
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Rally in The Pasture