the other lever is likely the extended crank for unsticking the macerator if it gets jammed. Shaft that runs to the macerator service port. My 2007 has a spring loaded lever, push in and turn to manually unstick a jammed macerator.
edit: get or read the roadtrek manuals, loads of info in there! I know they are available online if you didn't get hard copies
2007 TurdWrek 190 popular