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Preassembly
Pin-to-pin headstay length is a measurement which is used in many steps of assembly and also for measuring
sails. After determining the length of your headstay, write the length on the outside back cover of this manual for
easy reference in the future.
Upper and lower measurement points for headstay length.
Points de measure supérieur et inférieur.
Oberer und unterer Messpunkt für Verstaglänge.
Punti di misurazione superiore e inferiore dello strallo.
■ Additional Stemhead Toggles
Your furling system has an integral toggle at the lower
turnbuckle fitting. An additional toggle is not required at
the lower end but may be fitted if the headstay wire is too
short, or if it is desirable to mount the drum higher off the
deck than normal, say to provide more clearance for an
anchor.
Should an additional toggle be fitted to the headstay, be
sure to subtract the pin-to-pin length of the toggle from
the overall length of the headstay.
Some boats with very narrow bows or with bowsprits may
find that the furling drum, in its normal position, will not fit
inside the pulpit. It may be necessary to use a toggle to
raise the drum to avoid these problems.
The system is designed to keep the sail as close to the
deck as possible. While it may be necessary to raise the
drum to provide clearance for an anchor or to fit inside a
pulpit, do not mount the drum higher than required.
Raising the drum reduces sail luff length and increases
heeling. If you need better visibility under your genoa,
mount the drum as low as possible and see the instruc-
tions on page 44 - 45 of the manual.
Furling units should not be mounted above turnbuckles or
long link plates. If you are considering this, discuss your
installation carefully with Harken before proceeding.
■ T-Ball Fittings
Some boats have T-ball swage fittings as the upper terminal. They do not require
an additional toggle. Use the elbow in the fitting as the upper measurement point.
See Photo.
January 2002
Measure the pin-to-pin headstay from the center of the pin
holding the headstay to the masthead toggle to the center
of the pin holding the headstay assembly to the stemhead
chainplate.
If you reuse existing wire or rod, it will be shortened the
depth the wire is recessed into the terminal. Compensate
for this shorter length in figuring the pin-to-pin length. If a
toggle or link plates are used below the furler, use upper pin
as the lower measurement point.
The measurement should include all turnbuckles and tog-
gles at the lower end, but should not include the masthead
toggle.
All headstays must be secured to a toggle at the masthead.
Unit 00AL
Determining Headstay Length
Upper
Measurement
Point
T-Ball
15
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