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Nautor Furling Installation Manual – C7475/C7550

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Contents

1. Nautor Furling Installation Manual C7475 C7550 GENERAL SPECIFICATIONS E MAIN COMPONENTS Halyard Swivel C7475 C7550 Feeder Toggle Terminal Assembly Drum Assembly Nautor Furling Parts List December 2004 GENERAL SPECIFICATIONS l Parts List mM MISCELLANEOUS PARTS Red Loctites Foil Screws Foil Wedges Torque Tube Screws 5 mm 8 mm Allen Wrench Prefeeder Blue Loctite Super Bonder E RIGGER PARTS C7475 1 Trim Cap 9 Connectors 1 Long Bottom Connector C7550 1 Trim Cap 10 Connectors 1 Long Bottom Connector B FOILS C7475 9 Foils 1 Special Bottom Foil C7550 10 Foils 1 Special Bottom Foil December 2004 Nautor Furling 3 PREPARATION Headstay Length mM HEADSTAY CUT LENGTH Subtract the following from the headstay length and cut the Stay at that point Abd HEADSTAY CUT LENGTH CHART JS Clevis Pin Size HEADSTAY CUT LENGTH ii STRINGING CONNECTORS ON STAY Make sure the trim cap is at the top and the correct number of connectors are used The long bottom connector must be slid on the rod last mM ROD COLDHEAD HEIGHT Make sure the length of coldhead does not interfere with the drive pin Distance between the collet bottom and the rollpin is 6 5 mm 2 pA x 4 Nautor Furling December 2004 PREPARATION Foil Length mM FOIL CUT LENGTH A Foil cut length is based on pin to pin length as measured
2. d from center of upper pin attaches the stay to the mast to center of lower pin attaches the furling unit to the boat Measurement includes the masthead toggle IL B To check foil length lay foils alongside stay before cutting top foil C ii TOP FOIL CUT LENGTH Instructions For Worksheet Below 1 Fill in total pin to pin length 2 Fill in A length 3 Add A B E F G and subtract from total pin to pin length SUM 4 Choose the number from foil multiplier below closest to but not greater than sum from step 3 Fill in D length 7x2133 6 149352 D 8x2133 6 17068 8 9x21336 192024 10x2133 6 21336 0 11x2133 6 234696 N 12x2133 6 256032 5 Add A B D E F G oubtract from pin to pin length for C top foil length i E WORKSHEET DETERMINE TOP FOIL LENGTH _ Pin F To Pi A Center of PIN to Bottom of 4 Terminal B Bottom of Terminal to Top of Foil C Top Foil Le ae D 84 2133 6 mm Foils ir E Feeder Gap F Bottom Foi G Clevis Pin to Foil Total Pin to Pin Length NEN G CT T LUN y December 2004 Nautor Furling 5 PREPARATION Foil Length CUTTING TOP FOIL Once you have checked the top foil length cut the top foil Deburr and clean all shavings from the foil Important Failure to deburr or clean the inside of the foil may cause it to seize to a connector when installing on rod Rough up the top 1 25 mm of the foil using a file or Sandpaper ASSEMBLY il ASSEMBLE FOIL slide the
3. possible damage to the foils To decrease deflection angles shorten the luff of the sail TIP Boats used in charter service should consider using a halyard restrainer regardless of masthead geometry mM HALYARD TENSION The jib halyard should be firm but not too tight TIP The luff foil system supports the sail along its entire length so halyard tension is required only to shape sails not to support them Use only enough halyard tension to remove some wrinkles along the luff Do not tension the halyard enough to cause vertical wrinkles in the luff Use halyard tension to adjust draft position of the sail to suit sailing conditions Your halyard should be firm but not tight If in doubt release halyard tension To protect the sail ease the halyard when the boat is not in use December 2004 Nautor Furling 11 HARKEN Corporate Headguarters N15W24983 Bluemound Rd Pewaukee WI 53072 USA Telephone 262 691 3320 e Fax 262 701 5780 Web www harken com e Email harken harken com Harken Australia Pty Ltd 1B Green Street Brookvale N S W 2100 Australia Telephone 61 2 8978 8666 e Fax 61 2 8978 8667 Web harken com au e Email info harken com au Harken France ZA Port des Minimes BP 3064 17032 La Rochelle Cedex 1 France Telephone 33 05 46 44 51 20 e Fax 33 05 46 44 25 0 Web harken fr e Email info harken fr Harken Italy S p A Via Marco Biagi 14 22070 Limido Comasco CO Italy Telephone
4. the large threads of the stud Thread the stud into the main body until the slot aligns neatly with the hole in the main body TIP Sight through the pin hole to find the optimum thread engagement Make sure the stud is threaded far enough so the pin is securely seated in the slot yet not threaded too far to block the pin 8 Nautor Furling December 2004 ASSEMBLY Attach Stay Hammer the pin into the main body Clean excess Loctite2 from the terminal body Tape around sleeve to secure pin Lower drum assembly and slip clevis pin and cotter pin in place Coat threads of torque tube screws with blue Loctite Raise foils and insert foil screws ASSEMBLY Foil Length Check the clearance between the top of the foil and top terminal TIP Check clearance when the unit is on the ground before raising the headstay Into position December 2004 Nautor Furling 9 ADJUSTMENTS Halyard Wraps mM HALYARD WRAPS The most serious problem with furling systems occurs when the jib halyard wraps around the headstay foil Halyard wraps will prevent furling or unfurling and may cause serious damage to the unit and the halyard In severe cases halyard wraps may cause headstay loss To prevent wraps the halyard must exert a slight pull to the rear This allows the foils to turn while the halyard remains stationary il PREVENT WRAPS WARNING The sail must be fitted to the foils before operation 1 Halyard swivel shoul
5. trim cap and one connector to the top of the headstay Tape other connectors in place or use a pusher wire longer than foil to hold connectors back Slide top foil to top of stay screw holes toward the bottom Coat the connector with red Loctite Place a wedge in the indentation with the circular mold mark towards the connector Push the connector into the top foil until it is recessed about 2 13 mm 6 Nautor Furling December 2004 ASSEMBLY Foils Use Super Bonder to glue the trim cap to the roughened foil top Slide the next connector to the top of the stay Coat half of the connector and the indentation with red Loctite Place a plastic connector vvedge in the indentation closest to the top foll Coat foil screws with red Loctite Screw them into the connector until tight Continue assembly Slide halyard swivel onto foil tall end up December 2004 Nautor Furling ASSEMBLY Foils Install feeder screws toward bottom using blue Loctite on screws Slide lower unit onto foils ASSEMBLY Attach Stay M ATTACHING STAY TO TOGGLE TERMINAL ASSEMBLY Make sure halyard swivel and drum assembly have been slipped on the foils Slip the rod adapter sleeve onto the rod Sandwich the nosepiece over the rod and insert into the main body narrow end first Jiggle the sleeve or use a small Screwdriver to push the nosepiece completely into sleeve Put several drops of the blue Loctite on
6. 39 031 3523511 e Fax 39 031 3520031 Web harken it e Email info harken it Harken New Zealand Ltd 158 Beaumont Street Westhaven P 0 Box 90689 Victoria St West Auckland 1142 New Zealand Telephone 64 9 303 3744 e Fax 64 9 30 98 Web harken co nz e Email harken harken co nz Harken Polska SP Z00 ul Rydygiera 8 budynek 3A lokal 101 pietro 01 93 Warszawa Poland Tel 48 22 561 93 93 e Fax 48 22 839 22 75 Web harken pl e Email polska harken pl Harken Sweden AB Main Office and Harken Brandstore V stmannagatan 81B SE 113 26 Stockholm Sweden Telephone 46 0303 61875 e Fax 46 0303 61876 Mailing address Harken Sweden AB Box 64 SE 440 30 Marstrand Web harken se e Email harken harken se Harken UK Ltd Bearing House Ampress Lane Lymington Hampshire S041 8LW England Telephone 44 01590 689122 e Fax 44 01590 610274 Web harken co uk Email enquiries harken co uk Please visit http www harken com locator aspx to locate Harken dealers and distributors M1013 12 04
7. d be within the top 4 100 mm of the foil 2 Halyard must pull slightly to the rear 8 10 3 Halyard must be snug but not too tight TIP With the sail raised walk away from the boat and look at the masthead with binoculars Use the halyard swivel as a measurement reference 4 100 mm is 1 the length of the swivel There should be less foil exposed above the swivel than of the swivel If a halyard wraps do not force the unit to turn Attempt to open the sail by alternately furling in and out slightly If the sail can be unfurled lower the sail by releasing the jib halyard Severe halyard wraps can only be cleared by going aloft and freeing the halyard If the sail will not furl or unfurl it may be possible to remove the jib sheets and manually wrap the sail around the headstay Remember Testing at the dock does not indicate the halyard angle is correct In wave action the halyard may wrap if the lead angle is not correct The 8 10 diverging angle mentioned above is critical 10 Nautor Furling December 2004 ADJUSTMENTS Pendants Halyard Restrainer E PENDANTS If your sail is not long enough to position the halyard swivel prop erly you must add a pendant to the sail Pendants should be plas tic coated wire permanently attached to the sail so the height will be correct Adjustable length pendants are not acceptable as they might not be adjusted correctly during a sail change mM INSTALL A PENDANT 1 Rai
8. se the sail but do not attach tack shackle 2 Position the halyard swivel correctly near the top of the headstay and secure the halyard 3 Secure a piece of rope to the sail tack Lead the line through the tack shackle on the furling drum and tension the sail 4 Measure the distance from the tack shackle to the sail tack and have a pendant of this length permanently attached to the head of the sail 9 Repeat this procedure for every jib TIP Pendants are used at the head of the sail Short pendants may be added at the tack to improve visibility under the genoa but remember that visibility is already improved by shackling to the tack swivel Tack pendants increase heeling moment by raising the sail plan You may install pendants at both the head and tack of the sail MI HALYARD RESTRAINER To prevent wraps the jib halyard must pull slightly to the rear On some boats the halyard sheaves are located too close to the headstay and a halyard restrainer must be used Use halyard restrainers only when required by the masthead geometry Restrainers tend to limit sail luff length and may cause problems if not properly installed Mount the restrainer as high as possible on the face of the mast Position the restrainer so the foils will not hit it when under load The restrainer should deflect the halyard 8 10 If the angle is more than 10 you may experience difficulty in tensioning the sail luff friction in furling and

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