Powergear Leveler System - Grease Fittings
This may be helpful to others:
I've been cleaning the ram shafts and lubricating with silicon, per manufacturer instructions in the near-useless 4 page Owners pamphlet. Front levelers started groaning when retracting and driver side started not retracting all the way - about 3 inches remaining.
Researched online and found more in depth documentation. Viola! There is a grease fitting at the bottom of each cylinder... they were all buried beneath road grime.
Once I applied some grease, the levelers are very quiet and retract with no issues.
The useless Owners pamplet makes NO mention of the grease fittings.
2004 National Dolphin LX 6342 on W22