Furlers are a kind of sea-saw action. Furl the jib and when you pull it out... it spins the drum winding the line in... or wind the drum, hoist the jib, then pull the furler line to unwind the drum which furls the sail. The system is designed to furl in one direction, so just be aware of the furler line as it enters the drum... You can wind in the wrong direction which will cause the line to cut a slot in the housing. Looking from the bottom, you spin the drum in a counter clockwise direction to load the line in.
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Hobie Cat USA