Operating instructions RolloTron swivel winder standard DuoFern 2510/2550 Y. Beenen Updated July 11, 2024 12:24 Follow Download PDF Related articles Activate login mode: Swivel winder Standard DuoFern 2510 / 2550 How can I access the HomePilot PC interface? Remove the belt winder / RolloTron if the device no longer functions. Unlock the gear unit. Information on the RolloTron swivel winder Standard DuoFern 2510/2550 Operating Instructions RolloTube S-line DuoFern SLDS / SLDM