Hood Seafurl 705 User manual

WICHT THIS
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INSTALLAT'ION
MANUAL
AND
OWNEFI'S
MANUAL
AUGUST1987
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1
READTHISPAGE
To insure continued
satisfaction
and
trouble-freeoperation
it is necess
ary
to
follow
the
simple
guidelines
listed
below.
1.
Rinse
the
bearings
regularly
with
fresh
water.
2.Watch
for halyard
wrap.
Lookup!
3.If it
jams findout
why
-
don't
force
it!
4.,,'-,!tt.
I
reat tnls unlt like other
I
reat tnls unlt llKe any otner
equipment
- inspect it regularly.
5.
If any
problem
persists
, call
your
dealer.

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ffire
Figure l.

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CTJSTOMERCHECKLIST
REFERENCE
#DESCRIPTION
I Drive Unit Assembll'
2 Centering
Clamp
Assemblr
I Trrck Socket
1i Hali'ardSg'rreiAssemblr'
5 Feed
Sect
ion
6 Splice
Pieces
7 Luff Bearings
8 Luff Secri,
rns
QUANTITY
I
I
2 halves
I
I
2 h.rlvcs
per
luif sec.
I pcr lufi sec
plus I cxtr.i
determined
br
headstay
lengrh
2 halves
1+
per luff sec.
i. Hack
saw
6. Fine metal
file
or sandpaper
7.
Hamrner
TOOLS
REQUIRED
FORASSEMBLY
i. TapeMeasure
2.
Rigging tape
l. Felt tip marker
4.
Allen wrench rincluded
t

-GD
Figure
2,

l.
t.
INSTALLATION
MEASURING
THE HEADSTAY
The SeaFurl Drive Unit should be attachedto the deck
with a
shackle
(not
supplied).Choose
an appropriate
shackle
(either
a snap
shackle
or rwist
shackle)to use for this purpose.
In most cases,
the shacklethat was
used
to
tack the genoa
to the stemheadfitting will work. Make sure the shackle
will
fit through
the
stainless
steel
grommer
on the bottom of the
Drive Unit.
Determine
the
BaseLine (from which all other measurements
will be taken)
by aligning the
shackle
parallel
with the headstay
and noting where
the
shackle
will bear
on the grommet after rhe
unir is installed.
Mark this posi-
tion with a felt tip marker on the headstay
(or rurnbuckle,
if there
is
one).
If
the headstayis
on the ground rather than
on the boat,
makeyour
best
esti-
mate
of where the Base
Line position
will be.basedon
the
shacklelength
and
stemhead
configuration.
The exact position
of the Base
Line is
not
critical
as
adjustments
canbe
made
after
the
unit is
installed.
However,
every
effort
shouldbe
madeto determinethis posirionto withint 1".
The Centering Clamp servesthe purpose
of centeringrhe lower
end of the
Drive Unit on the
headstay.It also
serves
to hold the
furling unit up when
halyardtensionis
released.
Determine
the
position
of the Centering Clamp on the
headstay
by measur-
ing up from the Base
Line to the upper
sideof the
clamp
(measurement
"A"
on Figure 2) asfollows:
Model #705-A: IYz"
Model
#810- A=lt/2"
Model
#9It-A=2t/t"
Mark this position
on the headstay.
The Centering Clamp should be drilled out and filed if necessary
to fit the
contour
of the headstay
or headstay turnbuckle.
Clamp the
Centering Clamp
to the headstay
(or turnbuckle) in its proper location.
At this point, the headstay
should be removed from the boat.
With the headstay
laid
out straight on rhe ground, measure
up from the Base
Line to the location where the luff section
assemblywill start
(Dimension
"B", Figure
2) as
follows:
4.
5.
6.
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I
Luff Bearings
Top Bearings
- Splice
Pieces
T
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1.
EXTRUSION
ASSEMBLY
Locatethe Feed Section from the Luff Sections. The Feed Section can be
identified as the section which has its luff grooves
machined
open ar its lower
end.
Slide the Feed Section over rhe top of the headstay;
lower end first. The Feed
Section is designed
so
thar a standard
marine wire end fitting will pass
through the inside
of the secion. Slide this section
all the way down the
headstay
until its lower end is even with the mark which locates
the lower
end of the Luff Section assembly
(determined in step
6 on
page
5).
Take
one of the black plastic
Luff Bearings and twist it onto the headstay
abovethe Feed
Section. Insert it into the rop of the Feed
Section.
Take two of the Splice Pieces and mate them rogether
asa pair around the
headstay.
Insert them into the top of the Feed
Section.
Line up the two holes in the pair of Splice Pieces with rhe two larger holes
in the upper end of the Feed
Section. Insert a rivet into eachhole and fasten
them with a hammer. Note that the head
of the rivet should
sit inside the
larger hole in the Feed
Section locking the Splice Pieces
into place.
Take
one of the Luff Sections and slide
it over the top of the headstay.
Slide
it down over the Splice Pieces that are now sticking our of the top of the
Feed
Section. Rivet the Luff Section to rhe Splice Pieces.
Twist anorher
Luff Bearing onto the headstay
and insert it into the top of the Luff Section.
Rivet another set
of splice
pieces
into the top of the section.
Repeat
step
5 until the top of the
Luff Section
assembly
comeswithin 6'
of
the top of the headstay.
The last
section
to be assembled
should
be cut so thar when assembled
there
will be 1%" berween
the top of the Luff Section assembly
and the bottom of
the
wire terminal (Figure
2).
After cutting this upper Luff Section (be
sure to deburr rhe
edges),
slide it
over the top of the headstay
and rivet it to the Splice Pieces
which are
att-
achedto the next lower secion. Before
riveting, checkto make sure the dis-
tance
between
the top of the Luff Section and the end of the wire terminal is
It/2". After riveting, insert a Luff Bearing into the rop of the Luff Section.
To complete the Luff Section assembly,inserr the two halves
of the Top
Bearing into the top of the section
assembly.The Top Bearing should
be
glued in place
with the silicone
sealanr
provided.
2.
3.
4.
6.
7.
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NOTE: Make sure that Luff Bearing
is Installed in Feed Section
just above the Aft Tack Socket.

Feed
Section
,vr /r-,
Crlt fi?
Art
rackSocket
+J
tlu- ForwardrackSocket
Drive
Unit
*(\w
(Figure3A) O s -centeringclamP
8
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8. Now attach the Drive Unit to the Luff Section assembly
asfollows:
Remove the Cenrering Clamp
Slide the Drive Unit up over rhe bottom of the headstay
and
Feed
Section.
Reattach
the Centering Clamp to the headstay
in its proper location.
Slide the Drive Unir backdown over the Centering Clamp.
To assembiethe feed
section
ro rhe
drive unir, attach
the aft tack
socketto the feed
section
( Figure
3,{
) and insert into drive assembly,
aligning the "knob" on the tack
socket
with the hole in the tube.
Slide
the
Forward
tack
socketinto
the
other
side
and
tighten
the
screw.
Use
silicone
seal
on the threads
to prevenr loosening.
9. Slide the Halyard Swivel Assembly down over rhe top of the headstay.
The
tabs
on the inserts
should be down.
Assembly Is Now Complete.
10.
Connect the completed furling unit to the boat.

IT;lT:.;i"1:;:;";;*",o
between top sheave
3
10

t/ FURLING LINE INSTALLATION
The Sea
Furl models#810 and #911 are
driven with a continuousloop
of 7
/16"
diameter line. Model
#705
is
drivenwith a continuousloop
of 318" diameterline.
The furling line should be run through the appropriatelead blocksand around the
Drive Sheave. The endsof the furling line should be spliced
to form a continuous
loop. Be sureto run the line through the fairlead
blocksand the cover
"window"
(Figure4) before splicing. The loop should be long enough to reach
back to the
cockpitwhere
it can be lead
to a winch or to a cleat.
The angle between
the headstay
and furling line leading to the lst fairlead
blocks
should
be
90" asshown in Figure 6.
This will prevent chafe and friction on the
drive unit assembly.
11

MAINTENANCE
The Seafurl
bearings
arespecially
designed
with 316 stainlesssteelballs
alternating with
delrin balls running in work hardened 304 stainless
steel races.
Dudng factory
assembly,
thesc bearings
are "run in" with Teflon greasefor lubrication.
This grease
is very renacious,
such that under normal usage
it will be effective
indefinitely, providing the bearings are flushed out every 3 ro 4 weeks. Ideally,
you should wash the unit after every sail to remove salt.
To flush the Drive Unit Assembly loosen the SheaveCover Screw (Figure 9,
ff19) and slide the Sheave Cover (Figure 9, #17) down. (Be careful not to lose the
Rope Stripper (Figure 9, #11;;. Spray
water up into the area
where the top of
the Bearing Tube With Grommet (Figure 9, #16) intersects the Sheave
Bottom
(Figure 9, fr10).Rorate rhe
drive assembly
while flushing to allow the balls
to
turn and the entire area
to be saturated
with water. Spray\7D-40 into the same
area.
Replace the Sheave
Cover.
Next, spray
water up into the Bearing Tube With Grommet (Figure
9 #16) from
the bottom, again
rotating the Drive Assembly while spraying. Using an exten-
sion in the nozzle of the can
of \YD-40, spray
up into the lower bearings.
You
may want to have a rag handy to catch
the excess't$7D-40
which may run down.
To flush the Halyard Swivel Assembly simply spray
or pour water into the bear-
ings while turning the Swivel Cups (F'igure
10,
#7).
An occasionalsquirt of WD-
40 in the bearings
is also recommended.
If after extensive
use,or at any
time stickiness
or friction becomesexcessivesuch
that the bearings are
not functioning acceptably,
remove the entire offending
assembly
from the boat and return it to a
Hood Yacht Systems
Dealer or distribu-
tor for servicing. At no time attempt to disassemble
tbese
Suiuel (Bearing) Units,
STORAGE
AND RIGGING
When rigging or unrigging your Seafurl
for storage
or any other reason,every
alempt should be made to keep
it as straight
as
possible.
\7hen storing,
the entire
unit can be lashedto the mast or supported
on a mast
rack.
If your fairlead
blocks
are
permanently fixed to the deck,
it will be necessary
to
remove the sheave
cover
before
storage
since
your furling line is
spliced
into a
continuous
loop. To remove the Sheave
Cover (Figure
9,#17),loosen the Cover
Clamp Screw (Figure 9,
#,19)
and slide
the cover
off the bottom. Be
careful
not to
lose
the Rope Stripper (Figure 9,
fr11).
The cover
can
be then left on the deck.
For the sakeof protection, you may want to remove the Drive Unit Assembly
(Figure 1,#1) and Halyard swivel Assembly (Figure l, #4) and store
them at
home for the winter. L2

R*
tr
ffi
il
tli
r
OPERATION
When reefing or furling your sail, ir is imporranr ro head
up into the wind and
easesheets.Keep minimal sheet tension to hold a tight furl. If you have your hal-
yard tightened up to maintain luff shape,easethe halyard
to help prevent halyard
wrapping and to free up the movement in rhe system.
Due to the great variation in masthead
construction,
sail stretch
and individual
halyard
loads,the following sail installation steps should be
carefully
followed. If
you install your Seafurl
as
follows, a smoothly operating sysremwill be
assured.
Attach the head
of the sail to the lower shackle
of the halyard
swivel,
but Do
NOT attach the tack.
F-eedthe sail tape into one of the luff grooves
as
you hoist it.
Hoist the swivel and sail as high as it will go, without straining, and secure.
Be
careful
not to hoist the halyard'swivel
beyond
the extrusion.
Downhaul rhe sail,
utilizing a spareline temporarily attachedto the sail tack
and lead
rhrough the
line drive sheaveshackleuntil the maximum desiredluff tension is achieved.
Furl and unfurl the sail
several
times while watching the halyard
swivel ro seeif
it is rotating smoothly and not being restricted in its operation.
If the final distance
between
the sail tack
and tack shackle
"X" (Figure 7) is
greater than 6" the temporary lashing
should be replaced with a permanenr wire
Pennant.
This pennant can
be placed
either between the head
of the sail
and the
halyard
swivel or between the tack
of the sail and the tack
shackle
on the drive
sheave.
If this
distance
"X" is lessthan
6", a
pennant
lashing
(a
minimum of 3
turns of line) can be used.
I
I
',tv L3

An ideal circumstance
is when
the halyard
swivel
is hoisted
to the endof the
luff
sections
andhas
anangle
(aft)
between
theheadstay
and
the
halyardsheave
of 15 degrees
to 30degrees.
The
swivel
is
toolow,
decreasing
the angle
betweentheheadstay
sheaveandhalyard
sheave
to 6degrees.
Whilethisinstallation
may
function,
it would
bebetterto attacha
pennant.
The
pennant
increased
theheight
and
angle
of
theswivel
to theheadstay.
Pennants
may
be
installed
onthe tackof
the sailinstead
of at the
head.
This
provides
betterleeward
visibilityand
reduces
possible
damage
to the
saildueto heavy
sea
conditions.
L4

i'
$,
r$
{
$
lr$
{'
*
$
s
#
i Shows
acommon
problem
causedbythe
location
' of
themastheadsheave.A badangle
(no
aft
re-
rainingforce)is
createdbetweenthe
headstay
\rCra sheave.
This
condition
is
aggravated
by the
swivel
not
being
high
enough
ontheluffsection.
Herethe swivel
height
is improvedsothere
is a
betterangleand
the exposed
halyard
is much,
shorter.
Anotheralternative
is
to install astrapbaleor
blockthatrestrainsthehalyard.Withoutsucha
device,the condition
illustratedin Fig. 12would
causehalyardwrap
problems.
Note: The angle shown here is exaggerated
for illustration purposes.
The bale should
be
placed so that halyard just lightly rubs
on
the inside of the bale.
We recommend
the Forespar
P.E. - 35C pad
eye
when a
bale
is necessary.
tv
b

tt
I
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Figure
8.
9
705 El0 915
xEt/z'9/2' 13"
Yl4' 16' 24',
T6

SEA
FTJRL
SAILS
Preciselymeasurethe distancefrom the top of the halyard
sheave
(at the masr-
head) to the center
of the stemhead
pin (Dimension E, Figure 8).
To determine the maximum luff dimensions
for your sail
userhe table
below:
Overall length from sheave
top
to StemheadPin "E"
Halyard swivel deduction
Y -
(See
Table Figure 8)
Drum assemblydeduction X -
(See
Table Figure
8)
Maximum sail luff length
Hood Size
"X" or 3/16" diameter
bolt rope tapemust
be
used
on the luff so
that
the saileasilyslidesup and down, yet doesn'tpull out in heavy
air.
In order to accommodatethe halyard
swivel and tack
shackles,the head
and tack
rings in the sail
should be
no larger than 1t/<"
press
ring for the 705 and 810 and
I" heavy
press
ring for the 915
T7

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NOTE:
Thisexploded
view
ismeant
for
purposes
of product parts identification only. Please
do not attempt to disassemble.
Please
refer
to Maintenance sectionof this manual for
maintenanceprocedure. 18
Figure9.
I

DRIVE UNIT ASSEMBLY
Reference
# Description Part
Number
810 9r5
705
1
L.
3.
4.
t.
6.
7.
B.
g
10.
11.
t2.
rl.
r4.
1t.
16.
17.
18.
19.
20.
2r.
22.
70' LD
Drive Unit
810
LD
Drive
Unit
9I' LD
Drive Unit
Aft Tack Socket
Forward Tack Socket
Tack Socket Screw
Turnbuckle Tube
D Shackle
Shackle
Stud
Bushing
Shackle
Stud
Sheave
Set Screw
Sheave
Top
Sheave
Bottom
Rope Stripper
Sheave
Assembly Screw
Bearing
Assembly
Bearing Thrust Washer
Spirolox
Ring
Bearing
Tube
/w Grommet
Sheave
Cover
CoverClamp Nut
CoverClamp Screw
Centering Clamp
Centering Clamp Screw
Centering
Clamp Nut
Assembly
Complete
AssemblyComplete
AssemblyComplete
6401-00r
6406-00r
| | 4-28
x
1/4
SHCS
6402-00r
\X/ichard
tZtZ
6412-00r
64rr-00r
']
l8-24
x 3/8 half
Dog
pt SetScrew
639r-00r
6397
-00r
6427-00r
Il4-20
x
3/4
RHMS
6478-000
6410-001
RSN
168
S
6401-001
6396-00r
Il4-20
LIex
Jam
Nut
Il4-20
x
3/4
SHCS
6429-00r
rl4-20
x
1RHMS
ll4-20
Hex
Jam
Nut
643r-000
1960-001
5919-001
I/4-20x3/8
SHCS
t9t8-001
Wichardl2l3
1983-001
5982-00r
3/8-r6x1/4
half
Dog pt SetScrew
602
1-00
I
5979-001
1984-00
I
r/4-20x1
RHMS
6r8l
-000
5c)57
-00r
RSN
2OOS
1980-00
I
t977
-001
|
/1t-20
Hex
Jam
Nut
1/4-20x3/4
SHCS
t961-001
t/4-2oxl RHMS
I
l4-20 Hex
Jam
Nut
5997
-00r
t998-001
r/4-20x3
/8 SHCS
6001-001
\Tichard 1214
5994-00r
1993-00r
3/8-16x5/16
full
Dog pt SetScrew
(r102-001
600t-001
5996-001
t/t6- lSxl RHMS
(r182-001
t99t-001
RSN 237S
t99
I
-00
I
(1006-001
5
/ 16-l8 Hex
Jam
Nut
5/16-l8xl
SHCS
5999-00r
t/4-20x1RHMS
|
/4-20 Hex
Jam
Nut
T9
601
3-000
6000-000