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STRAIGHTENING INSTRUCTIONS 

Instructions for straightening the luff: 

Note: laying the luff on the ground with weights will not work 
but will form kinks instead and also void the warranty. 

 

 

 

 

 

 

 

 

 

 

 

 

1) With approximately one person every 8 feet, recoil the luff 
in the opposite direction 

2) Tape the end of the curved side to the straight side 

3) Lay the luff on the ground for at least 3 hours 

4) After that time, test to see if it has straightened out 

5) If not, repeat the same process. Warmer temperatures will 
help to speed up the straightening 

6) The luff can have a slight bend to it, the headstay tension 
will eventually straighten it out 

 

 

 

 

 

 

 

 

 

 

 

ASSEMBLY INSTRUCTIONS 

Assembly can be done with the mast up but is easiest to do 
with the mast down. 

1. Measure the length of your headstay from pin-to-pin with 
your turnbuckle in its normal setting. If the mast is up, raise a 
measuring tape attached to the jib halyard to the top of the 
mast and add the length to the top pin on the headstay. 

2. With this measurement, deduct 17” and cut the top of the 

luff using a saw. 

Do not cut end with the sail-feed slot.

 

 

The following is for FF4 systems, FF6 systems follow 3.B) 

3. A) Take the halyard top 
fitting and push the cored 
end of the halyard (

without

 

the metal ferrule) up 
through the bottom of the 
off-center hole, not in the 
center. Push the halyard 
over the sheave and out the 
side of the top fitting. 

4. A) Using the de-cored 
(hollow) end of the halyard 
with the metal ferrule, pass 
the ferrule down through the 
slot at the top of the luff 
extrusion on the opposite end 
of the sail feed slot. Trimming 
the halyard to the correct 
length will happen once the 
entire furler is setup. 

 

The following is for FF6 systems, FF4 systems follow 3. A) 

3. B) Take the halyard top fitting and push the exposed wire 
on the halyard up through the bottom of the off-center hole, 
not in the center. Push the halyard over the sheave and out 
the side of the top fitting. 

4. B) Using metal traveler on the wire halyard, pass the 
traveler down through the slot at the top of the luff extrusion 
on the opposite end of the sail feed slot. Trimming the 
halyard and crimping the end will happen once the entire 
furler is setup. 

5. Attach the halyard top fitting to the luff, ensuring that the 
side with the halyard coming through the fitting is on the 
same side as the sail feed slot on the bottom of the luff. 
Tighten the set screw so it firmly presses against the luff. 

Summary of Contents for FF4

Page 1: ... 8 Notes about trailering Page 8 Maintenance and Storage Page 9 Warranty Page 10 SPECIFICATIONS Max Headstay Length FF4 33 FF6 39 Max Wire Size 1 4 Max Turnbuckle Pin Size 7 16 Headstay Threaded swaged stud turnbuckle with toggle at the bottom a toggle at the top is recommended but any secure fitting like a T bolt at the top will work Must be secured by cotter pins Navtec turnbuckles are not compa...

Page 2: ... below The sooner you begin the uncoiling and straightening process the faster and easier it will be to straighten the luff The luff should remain coiled for no longer than 2 weeks Instructions for uncoiling the luff Note it s best to have one person cutting the bands with at least one other person holding onto the luff firmly ensuring it doesn t spring out 1 Stand the luff on its side with the ta...

Page 3: ...s for FF4 systems FF6 systems follow 3 B 3 A Take the halyard top fitting and push the cored end of the halyard without the metal ferrule up through the bottom of the off center hole not in the center Push the halyard over the sheave and out the side of the top fitting 4 A Using the de cored hollow end of the halyard with the metal ferrule pass the ferrule down through the slot at the top of the l...

Page 4: ...t is down step the mast and attach headstay 17 Adjust the backstay to normal tension If headstay needs adjusting remove the luff support pin and raise the spool to adjust afterwards reinserting the luff support pin 18 Use a furling line not included to go through the opening in the cup and up through the hole on the top flange of the spool tie a knot to secure the line in place 19 Manually rotate ...

Page 5: ...e often too large to fit inside the drum T bolt fittings are preferred i bolt fittings may not fit Cotter pins should be used to lock the turnbuckle not locknuts as these can unscrew and cause dismasting Toggles are required at the bottom of the headstay any secure fitting at the top of the forestay will work but a toggle is also recommended NOTES ABOUT SAILING The tension on the luff doesn t need...

Page 6: ...art becomes non functional during this time CDI will repair or replace it free of charge not including shipping Note this warranty does not cover damage incurred from weather trailering or transporting collisions at sea improper storage improper uncoiling or straightening of the luff including using weights or heat guns etc NOTES 21 SOUTH LANDING DR OAK BLUFF CANADA P 844 379 2407 F 204 896 6969 I...

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