Harken 7413.15 MKIV Hydraulic Jib Reefing & Furling User Manual

WARNING! Strictly follow all instructions to avoid an accident, damage to your vessel, personal injury or death. See www.harken.com for additional s

10 MKIV Hydraulic Unit 3 Preassembly Top Foil LengthLength ChartDimensions Inches mmA Center of Pin to Bottom of TerminalB Bottom of Terminal to

MKIV Hydraulic Unit 3 11Preassembly Short Top FoilIf top foil is shorter than 93/4" (248 mm), use one of the following special techniques to

12 MKIV Hydraulic Unit 3 Preassembly Check Foil LengthLine up bottom foil so foil clamp is centered or just below center of notches in bottom foil

MKIV Hydraulic Unit 3 13Assembly Top FoilDeburr inside edge using rat-tail file.Cut foil to length using hacksaw. Prepare top foil for drilling.Ti

14 MKIV Hydraulic Unit 3 Assembly Top FoilCut out template at right. Line up template with top of foil and scribed line. Tape in place. Use center p

MKIV Hydraulic Unit 3 15Assembly Top FoilPlace halves of plastic bushings on stay so hooked part of longer section faces out.Tip: With foil screw

16 MKIV Hydraulic Unit 3 Assembly Top Foil/ConnectorsSlip connector on wire, mating hook of plastic bushing with connector.Tip: In cooler weather,

MKIV Hydraulic Unit 3 17Start plunger into injector and immediately hold upright so plunger is down and applicator tip is up.As sealant runs down

18 MKIV Hydraulic Unit 3 Assembly Foils/ConnectorsTighten screws into connector holes. Make sure a drop of adhesive entered each screw hole. If not,

MKIV Hydraulic Unit 3 19Continue installing connectors and wedges. Make sure to use adhesive in screw holes.Continue assembly. Use 14" (356 m

2 MKIV Hydraulic Unit 3 Parts DescriptionsSafety Precautions/Parts Description1) Jaw/Jaw Toggle2) Toggle Housing3) Toggle Housing Insulator4) Hydraul

20 MKIV Hydraulic Unit 3 Loosen foil clamp screws at top of lower unit assembly.Slide assembly onto foils.Tip: Face clamp downward so it clears foi

MKIV Hydraulic Unit 3 21ROD RIGGINGInsert two cotter pins and spread. Clean excess Loctite® from terminal body using special care to ensure that

22 MKIV Hydraulic Unit 3 Assembly Attach Turnbuckle/ToggleAssemble turnbuckle. Slip toggle housing insulator onto threaded eye. Remove toggle plate.

MKIV Hydraulic Unit 3 23Assembly Attach ToggleChoose toggle orientation to match chainplate—fore/aft or athwartships. Line up insulator and secur

24 MKIV Hydraulic Unit 3 Assembly Attach Hydraulic CylinderPosition cylinder to match chainplate direction. Chainplate Runs Fore/Aft: Position the g

MKIV Hydraulic Unit 3 25Slide halyard swivel above feeder. Place feeder in foil recess. Push screw down so tab catches under foil. Tighten screw.N

26 MKIV Hydraulic Unit 3 Commissioning Turnbuckle on BoatHave extra cotter pins and locknuts on hand to replace used ones at base of unit and for tu

MKIV Hydraulic Unit 3 278 - 10°Commissioning Halyard: Swivel Height/Lead AnglePendantsIf the your sail luff is not long enough to position halyard

28 MKIV Hydraulic Unit 3 Commissioning Halyard: Restrainer/TensionTo prevent wraps, jib halyard must pull slightly to rear. On most boats, halyard l

MKIV Hydraulic Unit 3 29Operation Halyard: Headstay TensionBackstay AdjustersBackstay adjusters allow headstay tension to be varied to change sail

MKIV Hydraulic Unit 3 3Preassembly Sizing Check111213141516173. Will lower unit fit on bow? See page 9. If necessary, use an additional toggle to

30 MKIV Hydraulic Unit 3 Furl and ReefTo furl or reef, ease jib sheets and press correct switch to furl sail.In very light air, it may be necessary t

MKIV Hydraulic Unit 3 31Operation Manual OperationBefore using the system, practice manual operation in case there is a loss of power. Make sure t

32 MKIV Hydraulic Unit 3 Operation Reefing Tips/Secure Sail/Race ConversionRace ConversionRace conversion allows use of both grooves for sail change

MKIV Hydraulic Unit 3 33Storage – Mast DownIn areas where it freezes, do not store system where water can accumulate in foils. When water freezes i

34 MKIV Hydraulic Unit 3 Problem Probable Cause SolutionSail will not furl or is difficult to furl.Jib halyard is wrapping around headstay because

MKIV Hydraulic Unit 3 35Hydraulic Unit 3H Parts ListH-42967HFS1107112No. Description Order Part No.Toggle Assembly Hydr 3/4" 1 7413.25 3/41 T

36 MKIV Hydraulic Unit 3 Hydraulic Unit 3H Parts ListNo. Description Order Part No.Rod Adapter Stud w/Nosepiece -22 Rod 1 7426 -221 Stud (Main Body)

MKIV Hydraulic Unit 3 37Hydraulic Unit 3H Parts List6Description Order Part No.Instruction Manual 1 4379Blue Loctite®1 8335200 Adhesive Set 1 HFG7

38 MKIV Hydraulic Unit 3 Toggle Dimensions*A B C D E F G H in mm in mm in mm in mm in mm in mm in mm in mm7413.25 3/4, 7413.26 3/4*2.08 52.83 1.7

MKIV Hydraulic Unit 3 39Preassembly Dimensions/Sailmaker's InstructionsLuff LengthNote offsets above and below sail.A shorter luff may be req

4 MKIV Hydraulic Unit 3 Preassembly PartsMain ComponentsDescription Part No. QtyLower UnitSee Parts List12'(610 mm) Bottom foil7413.3317'(2

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

MKIV Hydraulic Unit 3 5Preassembly PartsBow ShacklesTrim CapPlastic Connector WedgesFoil ScrewsFeeder5200 AdhesiveInjector3,4, 6, 10 mmConnectorsBo

6 MKIV Hydraulic Unit 3 Preassembly Rigging Parts Check/Tools/Adhesive Tools You Will NeedMKIV Furlers are shipped with 3M 5200 adhesive. Use adhesi

MKIV Hydraulic Unit 3 7Hydraulic General Specifications/Valves/Operation Pressure/Oil1 2 3 4 5 6 7 810203040506070Flow GPMFurling speed RPMFurling

8 MKIV Hydraulic Unit 3 Hydraulic General Specifications/Valves/Operation Pressure/OilImportant: Hydraulic oil may damage paint and some surfaces.Le

MKIV Hydraulic Unit 3 9Preassembly Toggle Deductions/Stay Into Foil OptionsUse dimensions of Harken toggles or cylinders shown below to build stay