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Sail Control

TECH TIP #4

You can have total sail shape and 

reefing control from your cockpit 

by adding ball bearing genoa lead 

cars to your low-friction Harken 

furling system.

Bob Grieser Photo

Our Tech Service Team is ready to answer your furling questions.

 

Call 262-691-3320 or email [email protected]

WITH HARKEN MKIV  

JIB REEFING AND FURLING 

Easy Shorthanded Cruising 

Instead of changing sails, simply furl  
or unfurl to suit the conditions. 

Safe and Convenient

The ability to reef makes it easy to reduce 
speed and gain visibility off the bow— 
all from the safety of your cockpit.

HOW CAN I REDUCE HEEL 

AND GET BETTER CONTROL 

WITH A REEFED SAIL?

Harken MKIV roller reefing 
and furling units solve the 
inefficient shape of 
reefed sails with  
independent head 
and tack swivels. 
The independent 
swivels allow the 
middle to furl first, 
flattening the sail 
and reducing heel.

Ultimate

FURLING

Q

&

A

TOP 25 FURLING Q&A: 

www.harken.com/usa

Small outer drums fit on narrow bows

Large inner spool diameter 

increases pulling power

9 rows of ball bearings cut friction 

and evenly distribute the load

Содержание HC7906

Страница 1: ...ch height 5 Top track length 6 Track length 6 Assembly Slug Mount Track Cut top track to length 7 Check fit of mounting slugs and car 7 Install track 8 9 Install switch 10 11 Assembly Drill and Tap Tr...

Страница 2: ...ed personnel or expert users Installation disassembling and reassembling by personnel who are not experts may cause serious damage to property injury to users or injury to those in the vicinity of the...

Страница 3: ...riction slider insert HC7905HL Intermediate car Consult sailmaker for quantity required Uses Delrin slider insert HC8537HL Batten car 10 mm threaded stud Purchase batten receptacle separately Uses low...

Страница 4: ...Tap Use for masts without grooves or when slugs will not fit Part No Description Comments HC8230 Splice link Joins HC7827 track sections purchase two 2 for each section of track HC10417 Switch Length...

Страница 5: ...A distance See chart below Make sure track is longer than sail luff to allow for stretch as sail ages Track must not block halyard exit 3852 305 mm 12 Switch A mm in HC8798 HC8218 286 111 4 HC8799 HC8...

Страница 6: ...unt Length Hole Spacing mm in mm 2051 8013 16 100 Standard track drill and tap Length Hole Spacing 3000 1181 8 75 Length Quantity X Total Track Length ___________ SUM ___________ Top Track Length A __...

Страница 7: ...re slug contacts track underside Mounting screw must be long enough for mast groove If necessary purchase longer screws 67 mm 25 8 splice slug must fit feeder opening File opening to make longer Use h...

Страница 8: ...screws Tip Use putty knife to see if screws are loose enough to slide in groove Remember Tracks may stick when reaching a spliced area on mast Assembly Slug Mount Install Track Note When using HC8811...

Страница 9: ...nto place Loosely install all nineteen 5 mm x 20 mm screws Repeat until full length tracks installed Hold switch in place and make sure there is 64 mm 21 2 below for loading cars Assembly Slug Mount I...

Страница 10: ...in narrow section of slot Flat slug Load slug into mast so plastic locator screw is at bottom Slug will fasten in wide section of slot Tighten screw so slug stays in place at location from chart above...

Страница 11: ...above Install connector screw using blue Loctite adhesive on screw If necessary loosen plastic locator screws Install switch over slugs so plastic locator screw is through center hole Remove plastic...

Страница 12: ...secure screw Specific instructions follow Assembly Drill and Tap Mount General Instructions HC7827 18 mm 11 16 12 7 mm 1 2 4 mm 5 32 Mount Track to Carbon Mast Consult with mast builder Use suitable...

Страница 13: ...e Use a transfer punch to mark a single hole Remove track Drill and tap Fasten with single screw no adhesive Realign track and mark a second hole using transfer punch Screw to mast using two screws no...

Страница 14: ...to the upper track length Before mounting track move endstops and tether to new locations Tip Move one at a time so you can see how the line is run through the deadend hole Carefully align track Use...

Страница 15: ...rack Install Top Stop With track off mast tap upper splice link into track using procedures outlined above Follow general instructions page 15 for drilling and taping a single hole Always make sure tr...

Страница 16: ...ht IMPORTANT When all cars are aluminum do not mix intermediate cars with other cars See below Part No Description Slider Material Hole in Plastic Slider HC7904HL 12 mm batten car Low friction Yes HC8...

Страница 17: ...immediately if any occurs If winch operator does not have a good view of switch cars station a crew member with a good view and communication to operator Crew member must be able to communicate probl...

Страница 18: ...4 31 29 16 65 43 16 106 6 HC7905 Intermediate car 21 2 63 11 4 31 29 16 65 3 4 19 6 HC8537 Batten car 10 mm stud 21 2 63 11 4 31 29 16 65 39 16 90 6 10 HC7906HL Headboard car 713 16 198 11 4 31 29 16...

Страница 19: ...tings and cars cannot handle reefing outhaul or downhaul loads Transfer loads to a tack fitting Diagram B Important When setting up reef make sure cars are not loaded when they are in the switch area...

Страница 20: ...HFS181 1 Cotter pin HC7905 Part No Qty Description 1 H 40882 1 Car 2 MP 0708 1 Delrin roller 3 HFS1059 1 Screw SHCS M6 x 40 mm 4 HFS852 1 Nut M6 locking HC8537 Part No Qty Description 1 H 40882 1 Car...

Страница 21: ...g 6 4913 4 Harken label 7 HFS181 1 Cotter pin 3 8 x 1 1 8 H 24211A 1 Clevis pin HC8537HL Part No Qty Description 1 H 59240 w MP 171 pegs 1 Car with guide pegs 2 H 36490A 1 Threaded stud 3 HFS1059 1 Sc...

Страница 22: ...Locknut has been used too many times Get new 6 mm locknut Batten receptacle does not rotate Nuts are too tight Loosen nuts slightly Cars jam when raising sail Headboard or cars are catching on Lazy J...

Страница 23: ...Safe and Convenient The ability to reef makes it easy to reduce speed and gain visibility off the bow all from the safety of your cockpit HOW CAN I REDUCE HEEL AND GET BETTER CONTROL WITH A REEFED SA...

Страница 24: ...en New Zealand Ltd 158 Beaumont Street Unit 11 Orams Marine Centre Westhaven Aukland 1010 New Zealand Telephone 64 9 303 3744 Fax 64 9 307 7987 Web harken co nz Email harken harken co nz Harken Polska...

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