Harken 7411.11 1/2 MKIV Jib Reefing & Furling Manuale Utente

Please read these instructions carefully before installing, servicing, or operating the equipment. This manual may be modified without notice. See: ww

Assembly Install Hub Assembly in BowAdjust length so toggle is lined up with chainplate hole. Slide pin into chainplate and secure with cotter pin.S

Assembly Assemble Drum ComponentsPlace halves of plastic flange in lower groove on hub assembly so smooth side of flange is up.Tip: Line up flats in

Assembly Underdeck Lead BlockMount lead block so that line exits furler at 90° to line of headstay as shown. Remember block will split angle and rais

UNIT 1Length ChartDimensions Inches mmA Center of Pin to Bottom of TerminalB Bottom of Terminal to Top of Foil.5013C Top Foil LengthD Number o

UNIT 2Preassembly Unit 2—Top Foil LengthLength ChartDimensions Inches mmA Center of Pin to Bottom of TerminalB Bottom of Terminal to Top of Foil.

UNIT 3 (3/4, 7/8)Length ChartDimensions Inches mmA Center of Pin to Bottom of TerminalB Bottom of Terminal to Top of Foil125C Top Foil LengthD

16 MKIV Underdeck Unit 1 Preassembly Unit 1—Short Top FoilIf top foil is shorter than 7" (177.8 mm), use one of the following special technique

Preassembly Unit 2—Short Top FoilIf top foil is shorter than 811/16" (221 mm), use one of the following special techniques to ensure sufficient

18 MKIV Underdeck Unit 3 Preassembly Unit 3—Short Top FoilIf top foil is shorter than 93/4" (248 mm), use one of the following special techniqu

Preassembly Confirm Foil LengthLine up bottom foil so foil clamp is just above or below center of notches in bottom foil. Confirm foil length by lay

Parts DescriptionsParts Description1324567891011121314151) Lower Jaw/Jaw Toggle2) Threaded Stud3) Length Adjuster Nut4) Hub Assembly5) Flange Assembly

Assembly Top FoilDeburr inside edge using rat-tail file.Cut foil to length using hacksaw. Prepare top foil for drilling.Tip: Mark top foil to disting

Assembly Top FoilCut out template at right. Line template up with top of foil and scribed line. Tape in place. Use a center punch to mark holes.Check

Assembly Top FoilPlace halves of plastic bushings on stay so hooked part of longer section faces out.Tip: With foil screw holes up as shown below, pl

Assembly Top Foil/ConnectorsSlip connector on wire, mating hook of plastic bushing with connector. MKIV Underdeck Unit 1, 2, 3 23Put a drop of red

Hold plastic wedge in place with thumb as you insert into foil. Line foil holes with connector screw holes.Assembly Foils/Connectors24 MKIV Underde

Assembly Foils/ConnectorsUse bushings, connector, wedge and adhesive in other screw hole and insert into other foil. Use adhesive (see chart below f

Continue assembly. Use bottom connector to assemble bottom foil.Slide halyard swivel onto foil above feeder window. Make sure taller “half” is up as s

Loosen foil clamp screws at top of drum assembly.Slide drum assembly onto foils.Tip: Face clamp downward so it clears foil notches during installati

ROD RIGGINGInsert two cotter pins and spread. Clean excess Loctite® from terminal body using special care to ensure that there is no red Loctite® on

WasherAssembly Attach Turnbuckle/Foil System to BoatThread turnbuckle and threaded eye to stud protruding from foil. Assemble turnbuckle.Note: If us

Preassembly Sizing Check231920212224252617) Feeder18) Connector Bushing19) Bottom Connector20) 7' (2.13 m) Foil21) Connector Screws22) Connector

Assembly Attach Turnbuckle/Foil System to BoatCarefully Raise foil and stay up onto boat. Raise foils using line attached to feeder gap as shown.At

Check foil height at top, set and secure using hex key.See tip on next page.Assembly Attach Turnbuckle/Foil System to BoatCheck to make sure there i

Tip: Do not remove foil clamp screws to adjust foil. Loosen screws, hold foils and bring clamp away from foils. Adjust and reclamp.Assembly Feeder/Fi

Commissioning Turnbuckle on Boat MKIV Underdeck Unit 1, 2, 3 33Have extra cotter pins on hand to replace used ones at base of unit and for turnbuck

Slide torque tube assembly onto foil and clamp just below top of feeder gap as shown. Use halyard to lift foil assembly.Commissioning Turnbuckle on

Commissioning Lead Line to Cockpit MKIV Underdeck Unit 1, 2, 3 35Note: As furling line lead changes, make sure line doesn’t chafe against line gua

Commissioning Halyard: Swivel Height/Lead Angle36 MKIV Underdeck Unit 1, 2, 3 1. Halyard swivel should be within top 4–6" (100–152 mm) of foil

Commissioning Halyard: Restrainer/Tension MKIV Underdeck Unit 1, 2, 3 37Halyard Deflector/Halyard RestrainerTo prevent wraps, jib halyard must pull

Operation Halyards/Headstay TensionBackstay AdjustersBackstay adjusters allow headstay tension to be varied to change sail shape to match conditions.

Furl and ReefTo furl or reef, ease the jib sheets and pull furling line.In very light air, it may be necessary to place some tension on jib sheet to

Preassembly PartsMain ComponentsTorque Tube AssemblyHalyard Swivel2' (610 mm) Bottom Foil7' (2.13 m) FoilsFlange AssemblyCover AssemblyGuard

Operation Reef/Secure Sail40 MKIV Underdeck Unit 1, 2, 3 ReefA sail may be partially furled before you resume sailing. This is known as reefing.Man

Operation Race ConversionRace conversion allows use of both grooves for sail changes and tacking genoas on deck for use of maximum luff length genoa

Confirm Gap Between Deck Flange and Tack SwivelCheck to make sure there is a 1/16"–1/8" (2–4 mm) gap between the deck flange and tack swive

Problem Probable Cause SolutionSail will not furl or is difficult to furl.Jib halyard is wrapping around headstay because angle between mast and and

44 MKIV Underdeck Unit 1 MKIV Underdeck Unit 1 Parts ListH-38817HFS980H-38818HFS980HFS1052H-38293HFG684 HFG683HFG685No. Description Order Part No.To

MKIV Underdeck Unit 1 45MKIV Underdeck Unit 1 Parts ListH-42063H-39625HFS1105HFG680H-42062HFG295HFG625H-39683HFG3436HFG6297411.307411.337411.31741

46 MKIV Underdeck Unit 2 MKIV Underdeck Unit 2 Parts List*Grip LengthPin Measurements*Pin measurementsare "Grip Length."37424 -12 7424 -17

74049448211726520477303 MKIV Underdeck Unit 2 47MKIV Underdeck Unit 2 Parts ListH-42033H-39487HFS1106HFS1127H-42032HFG296HFG626H-39559HFG348HFG6726

48 MKIV Underdeck Unit 3 MKIV Underdeck Unit 3 Parts List*Grip LengthPin Measurements*Pin measurementsare "Grip Length."37424 -12 7424 -17

MKIV Underdeck Unit 3 49MKIV Underdeck Unit 3 Parts ListHFG349HFG6726H-397517413.30H-420737413.31H-39756 7413.327413.10 FOILSET7413.336Description

Bow ShacklesPlastic Connector WedgesFoil ScrewsPrefeeder5200 AdhesiveInjectorBottom ConnectorConnectorsPreassembly PartsConnector BushingsTrim CapUnit

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MKIV Underdeck Unit 1 45UNIT 1 — Deck Drill TemplateBOWUNIT 1 Deck Drill Template!Hole Saw Size 33/4" (95mm)2.362" (60 mm)3.464" (88

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46 MKIV Underdeck Unit 2 UNIT 2 — Deck Drill TemplateBOWUNIT 2 Deck Drill Template!Hole Saw Size 41/4" (110 mm)2.678" (68 mm)3.936" (1

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MKIV Underdeck Unit 3 47UNIT 3 (3/4, 7/8) — Deck Drill TemplateBOWUNIT 3 (3/4, 7/8) Deck Drill Template!Hole Saw Size 51/2" (140mm)3.444"

Corporate HeadquartersN15W24983 Bluemound Rd, Pewaukee, WI 53072 USATelephone: (262) 691-3320 • Fax: (262) 701-5780Web: www.harken.com • Online Catal

1. Stud/eye turnbuckle components are not included and must be purchased separately. See page 8.2. Rod rigging requires Harken rod adapter stud.3.

Preassembly Dimensions/Sailmaker's InstructionsLuff LengthNote offsets above and below sail.A shorter luff may be required if a halyard restrain

Preassembly Deduction for Stay Length/Stay Into Foil OptionsUse dimensions of Harken toggle below to build stay to correct length.Tip: Turnbuckles sh

Assembly Deck Flange Carefully locate center point in deck to locate deck flange. Line from mast to under deck chainplate must intersect this center