Harken 7311.10 Cruising Jib Reefing & Furling - Manual (Page 22)

8–10°
Commissioning Halyard Wraps
Pendants
If the your sail luff is not long enough to position the halyard swivel
properly, you must add a pendant. Pendants should be made of plastic-
coated wire and be permanently attached so the sail height will be
correct. Adjustable length pendants are not acceptable as they
might not be adjusted correctly during a sail change.
Installing a Pendant
1. Raise sail, but do not attach tack shackle.
2. Position halyard swivel correctly near top of headstay.
3. Secure halyard.
4. Tie a piece of rope to sail tack.
5. Lead line through tack shackle on furling drum.
6. Tension sail.
7. Measure distance from tack shackle to sail tack and permanently
attach a pendant of this length to head of sail.
8. Repeat this procedure for every jib in your sail inventory.
1. Halyard swivel should be within top 4" (100 mm) of foil unless a
halyard restrainer is used.
2. Halyard must pull slightly to rear (8–10°).
3. Halyard must be snug, but not too tight.
If halyard wraps, do not force unit to turn. Attempt to open sail by
carefully furling in and out a little at a time. If sail will unfurl, lower
it by releasing jib halyard. Severe halyard wraps can only be cleared
by going aloft and freeing halyard.
If sail will not furl or unfurl, try to remove jib sheets and manually
wrap sail around headstay.
Testing at dock does not indicate halyard angle is correct. In wave
action, halyard may wrap if lead angle is not correct. The 8–10°
diverging angle shown at right is critical.
To prevent wraps, the halyard must exert a slight pull to the rear. This
allows the foils to turn while halyard remains stationary.
Prevent Halyard Wraps
Halyard Wrap
The most serious problem with furling systems occurs when the jib
halyard wraps around the headstay foil. Halyard wraps will keep you from
furling/unfurling and may cause serious damage to the unit and halyard.
22 Unit 1, 2 Cruising 08/23/10
WARNING! In severe cases, a halyard wrap can cause loss of
control of boat and/or headstay can break suddenly which can
cause an accident, damage to your vessel, personal injury, or
death. See www.harken.com for additional safety information.
WARNING! Sail must be fitted to foil length before using to
prevent headstay loss which will cause an accident, damage
to your vessel, personal injury, or death. See www.harken.com
for additional safety information.