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INSTRUCTION SHEET

Halyard Restrainers

944/945/1113

N15W24983 Bluemound Rd, Pewaukee, WI 53072-4974

Telephone: (262) 691-3320 • Fax: (262) 701-5780

Web: www.harken.com • Email: [email protected]

To be used if angle between halyard and headstay is less than 7°. This  

is common on masts where halyard sheave is very close to headstay.

If halyard angle is greater than 7° and halyard is still wrapping, a halyard 

restrainer may not be necessary. Halyard swivel must be near top of 

foils and headstay must be tight. This will prevent halyard wraps in 

most cases. Consult furling instruction manual.

3

. Position restrainer on mast so halyard is at a 7 to 10° angle to  

headstay. See drawing on reverse side.
If necessary have a sailmaker cut down top of sail to create a 7 to 10° angle 

between halyard and headstay.
With restrainer installed, halyard swivel will ride lower than installations with-

out restrainers. This is necessary to achieve correct halyard angle.

Method

Rivet

Tap U.S.

Tap Metric

Fasteners 

(not included)

(6) 

3

/

16

"  

SS Rivets

(6) 10-32 x 

3

/

8

 SS 

Machine Screw RH

(6) 5 x .80 x 10 mm 

SS Machine Screw TH

Drill Ø

13

/

64

" (5 mm)

5

/

32

"

4.2 mm

Tap Size

10-32

5 x .80 mm

Strictly follow all instructions to avoid an accident, damage  

to your vessel, personal injury or death. See www.harken.com/

manuals for additional safety information.

Tools and Supplies

Drill • Pliers • Heavy-duty rivet gun or screwdriver

Mounting Instructions

1.

 Hoist tallest sail that will be used.

If mast is down, angle headstay out to stemhead  

chainplate (“J” dimension). Measure luff length of  

tallest sail and position restrainer as directed below.
Installations aloft should be performed by rigging  

professionals only.

J

2

. Remove sheave from restrainer, install wire and 

re-fasten sheave. 

Note:

 Be careful to not lose stain-

less steel sleeve when removing sheave. Make sure 

forward side of restrainer is parallel to headstay.  

Do not install upside down

. See drawing on 

reverse side. Bend cotter pin so clevis pin will not 

fall out.

Don't lose 

stainless  

steel sleeve

USE ONLY IF NECESSARY

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