My newly purchased boat has a Harken MK-III Unit 0 jib furler system. I've read the manual three times and cannot understand how to affix the furling line into the hub. Once I get the line into the furling hub, how do I keep the furling line attached to the rolling hub???This is my first experience with a roller furler. (If you have the manual, it's page 28 of the March '99 edition of the Unit 0 instruction manual that befiddles me!).