Harken 7410.10 MKIV Jib Reefing & Furling - Manual (Page 23)

Commissioning Turnbuckle on boat
MKIV Unit 0 23
Have extra cotter pins on hand to replace used ones at base of
unit and for turnbuckle.
Hold foils and loosen drum assembly screws until you can pull
clamp out to lower foils.
Lower foils.
Remove crosspin holding drum assembly to turnbuckle.
Raise drum assembly and use halyard to lift and hold it about
5' (1.5 m). Raise foils using second halyard and secure. Allow
room above for turnbuckle take up.
Adjust turnbuckle.
Replace used cotter pins. Lower drum assembly and install clevis
pin and new cotter pin.
Lift foils so top is
3 /
8
" (10 mm) below upper terminal.
CAUTION! Make sure drum assembly and foils are
securely lifted using a halyard before adjusting turn-
buckle. Foils can drop suddenly causing injury to hands.
WARNING! Stay must attach to toggle using clevis
pin. Do not attach stay to crosspin at drum assembly
because crosspin will fatigue and break.
Crosspin
Crosspin
Hole
Crosspin
Hole
Clevis
Pin
Stay