Mike,
Thanks for the tips.
Since my jack system is not working right, I also seem to lose air on the passenger rear, slowly over the course of a few days.
Rather than starting the coach so the airbags will equalize (since that right rear needs to be serviced) my thought was to place the jack so that would not be necessary, We are ensconced in a resort in Mesa until January, so I really don't want to pack the coach up to take it in to be serviced, and might attempt to address the air issue myself.