Vogelsang CC-Series- How to service and how does it work?

http://www.vogelsang.info/int/markets... Vogelsang CC-Series: CavityComfort progressive cavity pumps Flexible concept for service and maintenance: Straightforward & rapid service Little space required for service Seal replacement without opening the pump Many options for replacing parts Quick and easy: Replace of rotor and stator as unit Step by step Replace stator, rotor and cardan shaft one after the other on-site