Thanks to several comments I received, was able to find where to add fluid to the hydraulic levelers. Had to remove the aux battery to reach it.
After inspection, found leak in shaft of one of the rear levelers. Eliminated bad connection and hoses.
The leveler looks relatively simple to replace however ignorance is always my enemy on these projects.
The leveler system is a Power Gear.
Anyone ever tackle this type of job or is this far more complex than it appears.
1999 Fleetwood Pace Arrow Vision 36z