Table of Contents
Advertisement
Quick Links
MKIV UNDERDECK JIB REEFING & FURLING
Installation Manual - Intended for specialized personnel or expert users
Please read these instructions carefully before installing, servicing, or operating the equipment.
This manual may be modified without notice. See: www.harken.com/manuals for updated versions.
Unit 0
Stay Into Foil Options
Install Hub Assembly in Bow
Rod Rigging
Attach Turnbuckle/Foils to Boat
Halyard Swivel Height/Angle
Maintenance/Troubleshooting
Clean/inspect
Troubleshooting
Drilling Template
PLEASE SAVE THESE INSTRUCTIONS
4427 01/14
4
5
6
7-8
8
9
10
11
12
13
14-20
20
21
22
23-24
25
26-27
28
29
30
31
32-33
33
33
34
34
34
35
36-37
38
Advertisement
Table of Contents
Related Manuals for Harken MKIV
Summary of Contents for Harken MKIV
-
Page 1: Table Of Contents
Race Conversion Maintenance/Troubleshooting Clean/inspect Replace Line Storage/Transporting/Remove Troubleshooting Parts List 36–37 Drilling Template Please read these instructions carefully before installing, servicing, or operating the equipment. This manual may be modified without notice. See: www.harken.com/manuals for updated versions. PLEASE SAVE THESE INSTRUCTIONS... -
Page 2: Unit 0
The user must have appropriate training in order to use this product. Harken accepts no responsibility for damage or harm caused by not observing the safety requirements and instructions in this manual. See limited warranty, general warnings, and instructions in www.harken.com/manuals. -
Page 3: Preassembly
Furler Requires Drained Compartment Harken’s Underdeck Furler is designed to keep much of the water from entering the bow compartment. Water will drip through the furler when it rains or when sailing in heavy weather. The furling compartment must drain. -
Page 4: Parts
H-39713 Feeder with screw and tab 2110 6 mm Bow shackles Tools HFG725 Injector, 1 oz. 5200 Adhesive (HFG722) Quantity Description HFG739 Red Loctite (for foil screws) 1 Each 2.5, 3, 5 mm Hex keys ® MKIV Underdeck Unit 0... -
Page 5: Rigging Parts Check/Tools
ROD RIGGING must be purchased separately. Harken Rod Adapter Stud Required 2. Rod rigging requires Harken rod adapter stud. MKIV Furlers are shipped with 3M 5200 (Sold Separately) 3. Order Harken Lead Blocks and one additional adhesive. Use adhesives on dry connectors and foils using the special injection system 7403 if necessary. -
Page 6: Dimensions/Sailmaker's Instructions
7410.11 Furls in one direction only. IMPORTANT! Suncover must be installed on starboard side of sail. Unit Part No. " " " " " " 7410.11 96 mm 158 mm 33 mm 6 mm 817 mm 91.5 mm MKIV Underdeck Unit 0... -
Page 7: Rigging Options/Turnbuckle
Preassembly Rigging Options — Turnbuckle The stay runs up the center of the MKIV Unit 0 Underdeck furler. It does not attach to the furler in any way. Choose one of the follow- ing three turnbuckle locations based upon diameter of turnbuckle body and access to the turnbuckle below deck. - Page 8 ® foil is assembled. 3. Rod adapter nosepiece for Harken rod adapter stud: Threaded nosepiece must have a positive lock as well as adhesive. Use Harken stud with cotter pins. See page 22. WARNING! Using a threaded nosepiece with only adhesive at the upper rod eye terminal may result in headstay system failure.
- Page 9 Use 6 mm screws, washers, locknuts and deck sealant to fasten lower unit to deck. and dead end line into spool Note: There must be a minimum of " (9 mm) thread engagement into deck flange. before mounting lower unit. MKIV Underdeck Unit 0...
-
Page 10: Hub Assembly
Assembly Under-Deck Lead Block Mount lead block so furling line is 90° to hub assembly. 90° Mount thru-deck block. Be sure to angle it toward stanchion lead block. MKIV Underdeck Unit 0... -
Page 11: Preassembly
.40* C Top Foil Length D Number of Foils ________ x 84" (2133.6 mm) E Bottom Foil F Bottom of Foil to underside of deck Pin-to-Pin Length *Add 1" (25 mm) if using a Halyard Deflector. MKIV Underdeck Unit 0... -
Page 12: Top Foil Length
"–2 above top connector. Cut connector right at cross formed Under " (13 mm) Eliminate top foil and run foil higher by glue dispersion channels. Use single foil screw in top in drum assembly. foil only. MKIV Underdeck Unit 0... -
Page 13: Foil Length Check
Mark cut line on foil. Wrap tape around foil as a guide so cut is straight. If 7301 Halyard Deflector is used, add 1" (25 mm) MKIV Underdeck Unit 0... - Page 14 .8" or 13/16" (20 mm) Drill two (2) 1/8" (3.2 mm) holes for trim cap. Lay top foil in line with others. Slide stay into top foil and down line of foils or slide each foil up stay. MKIV Underdeck Unit 0...
- Page 15 Install trim cap screws. Place halves of plastic bushings on stay so hooked part of longer section faces out. Tip: With foil screw holes up as shown below, place longer half of bushing with hook on upper half. MKIV Underdeck Unit 0...
- Page 16 Assembly Top Foil/Connectors Slip connector on wire, mating hook of plastic bushing with connector. Put a drop of red Loctite into screw holes. ® MKIV Underdeck Unit 0...
-
Page 17: Assembly Foils/Connectors
As sealant runs down towards plunger an air pocket will form near tip. Push plunger to evacuate air. You are now ready to begin injecting adhesive. MKIV Underdeck Unit 0... - Page 18 Loctite entered each ® screw hole. If not, apply to screw. Red Loctite ® Use bushings, connector, wedge, and adhesive in other screw hole and insert into other foil. Use 1/4 to 1/2 ml. of adhesive. MKIV Underdeck Unit 0...
-
Page 19: Halyard Swivel
Make sure to use adhesive in screw holes. Red Loctite ® Continue assembly. Use bottom connector to assemble bottom foil. Slide halyard swivel onto foil above feeder window. Make sure taller “half” is up as shown. MKIV Underdeck Unit 0... -
Page 20: Torque Tube Assembly
Tip: Face clamp downward so it clears foil notches during installation. Temporarily clamp torque tube to top of bottom foil, leaving feeder gap partially exposed as shown at right. Gap will be used to rig a foil system lifting line. MKIV Underdeck Unit 0... - Page 21 Insert two cotter pins and spread. Clean excess Loctite ® from terminal body using special care to ensure that there is no red Loctite ® threaded stud. MKIV Underdeck Unit 0...
- Page 22 Carefully raise foil and stay up onto boat. Raise foils using line attached to feeder gap as shown. Adjust turnbuckle. Secure with cotter pin. When stay length is set, use side cutters or needlenose pliers to bend cotter pin to secure turnbuckle. MKIV Underdeck Unit 0...
- Page 23 Check foil height at top, set and secure Note: Do not remove screws, just loosen them. using hex key. Top of trim cap should be about 7/16" (11 mm) to bottom shoulder of terminal. MKIV Underdeck Unit 0...
-
Page 24: Feeder/Final
Push screw down so tab catches under foil. Note: Screw will turn with some difficulty. It is plastic coated to prevent loosening due to vibration. Important: When removing screw, loosen no more than one full turn. Slide screw up and remove feeder. MKIV Underdeck Unit 0... - Page 25 Hold foils and loosen torque tube screws until you can pull clamp part way out in order to lower foils. Lower foils. Loosen, but do not remove Remove the three screws at the base of the torque tube. MKIV Underdeck Unit 0...
-
Page 26: Commissioning Turnbuckle
Reassemble Torque Tube to lower unit. Lift foils so top is 7/16" (11 mm ) below upper terminal. Slide foil clamp into foil notches and tighten screws to secure. MKIV Underdeck Unit 0... -
Page 27: Lead Line To Cockpit
Deadend Hole Rotate the drum clockwise to charge the spool. Wind 10–15 ft (3–4.5 m) of line on spool. IMPORTANT! Make sure that the suncover, if used, is installed on the starboard side of the sail. MKIV Underdeck Unit 0... - Page 28 5. Lead line through tack shackle on furling drum. 6. Tension sail. 7. Measure distance from tack shackle to sail tack and permanently attach pendant of this length to head of sail. 8. Repeat procedure for every jib in your sail inventory. MKIV Underdeck Unit 0...
-
Page 29: Halyard Restrainer/Tension
Tension to adjust position of draft in sail to suit sail- ing conditions. Halyard should be firm but not tight. If in doubt, release halyard tension. To protect sail, ease halyard when boat is not in use. Halyard Restrainer MKIV Underdeck Unit 0... -
Page 30: Operation
They permit a very tight headstay to be eased when boat is not in use. For best performance, consider adding a backstay adjuster; either a block and tackle, a mechanical adjuster like those offered by Harken, or a hydraulic adjuster. Remember to keep headstay tight for best performance when furling or reefing. -
Page 31: Raise Sails/Storm Sails/Reefing
Consult the Troubleshooting Guide on page 35. Do not use a winch to force a system to turn. If you are certain that the system is operating properly, you may use a winch to make furling easier. MKIV Underdeck Unit 0... -
Page 32: Secure Sail
Don't drop the feeder terminal stud. Make sure you use a new 2. Slide screw up. overboard! Remove feeder. Norseman/Sta-Lok wedge to reassemble ® 3. Lower halyard Norseman/Sta-Lok fitting. swivel. ® MKIV Underdeck Unit 0... -
Page 33: Replace Line
After storing or transporting unit, clean thoroughly including ball bearings. See instructions above. Remove Furler From Boat In order to prevent foils from locking against upper stay terminal when backstay is released, loosen torque tube screws and lower foil before loosening backstay. MKIV Underdeck Unit 0... - Page 34 Henkel AG & Company KGaA ® McLube™ is a registered trademark of McGee Industries, Inc. Warranty: www.harken.com/manuals Online Product Registration or call, write, email or fax Harken, Inc., www.harken.com/FurlingWarranty Pewaukee, WI USA MKIV Underdeck Unit 0...
-
Page 35: Parts List
MKIV Underdeck Unit 0 Parts List Description Order Part No. Foil Clamp H-42959 Socket Head Cap Screw (M4 X 12MM) HFS1102 H-42959 Torque Tube H-52148 HFS1102 Socket Head Cap Screw (M5 X 8MM) HFS331 Bow Shackle 6MM 2110 Deck Plate... - Page 36 Parts List 36–37 Drilling Template 7404 Please read these instructions carefully before installing, servicing, or operating the equipment. This manual may be modified without notice. See: www.harken.com/manuals for updated versions. PLEASE SAVE THESE INSTRUCTIONS Horn Cleat HCP168 Bow Shackle (6 mm)
- Page 38 MKIV Underdeck Unit 0 Deck Drill Template Hole Saw Size Recommendations Read before drilling. " (110 mm)—Requires some beveling of bottom edge of deck hole to provide a good fit. Alternatively, a " (86 mm) smaller hole may be used to fashion a socket in deck to conform to ball shape.
- Page 39 Main Office and Harken Brandstore: Västmannagatan 81B SE-113 26 Stockholm Sweden Telephone: (46) 0303 61875 • Fax: (46) 0303 61876 Mailing address: Harken Sweden AB, Box 64, SE -440 30 Marstrand Web: harken.se • Email: harken@harken.se Harken UK, Ltd. Bearing House, Ampress Lane, Lymington, Hampshire S041 8LW, England Telephone: (44) 01590-689122 •...