ProFurl MK1 User manual

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08/03/02 PROFURL IN-BOOM REEFING SYSTEM
MK 1
SERIAL NUMBER:.........................................................................................
INSTALLATION
MANUAL
IMPORTANT NOTICE TO RIGGERS :
PLEASE GIVE THIS MANUAL TO THE BOAT OWNER AND ASK HIM
(HER) TO CAREFULLY READ IT BEFORE USING THE SYSTEM.
RECEIPT OF GOODS
All goods must be checked on delivery and the Buyer should claim from the carrier
verbally within three days in the event of loss or damage, and in writing within seven
days.
Z.I. des Marais
32 rue de Osiers
78310 COIGNIERES
France
Tel + 33 (0)1 34 61 66 85 - Fax [phone]
E mail: [email protected]
www.profurl.com

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Congratulations for the purchase of your PROFURLin-boom reefing furling system.
Please read carefully this manual. It will give you to all information for fitting and using
your system in order to give you many years of dependable service.
IMPORTANT WARNING FOR USING
YOUR SYSTEM :
!The PROFURL boom is obviously heavier than your conventional boom.
Do not make uncontrolled gibing, specially with strong wind as you
could permanently damage your system.
Reminder to gibe :
1 - take in or winch your main traveller and main sheet
2 - turn your boat to gibe
3 - gradually release your main traveller and main sheet.
You can even better fit a tackle as boom preventer (please see
drawing).
A boom brake is supplied with your system: it mustbe used and
adjusted at any time. You should not forget to completely release it
each time you want to operate your system.

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CONTENTS
Page 2 Important warning to use your system
Page 3 Preliminary cautions
Page 4 General description
Page 5 Exploded view
Page 6 Tools needed for fitting
Page 6 Unfitting the hardware from the mast
Page 7 Determining the height of the gooseneck
Fitting the slide screws in the mast track.
Page 8 Fitting the gooseneck.
Page 8/9 Assembling the luff profiles.
Page 10/11 Fitting the articulation brackets onto the mast / the sheave box.
Page 12 Measuring and fitting the upper luff profile.
Fitting the upper luff profile onto the sheave box.
Page 13/14 Cutting the boom to length
Page 15 Cutting the mandrel to length. Fitting the mandrel onto the
boom.
Page 16 Fitting the boom onto the gooseneck.
Page 17 Fitting the boomvang hound / the boomvang.
Page 18 Adjusting the position of mainsheet bails.
Installation of the control lines to the cockpit
Page 19 Fitting the mainsail
Page 20 Feeder adjustment.
Page 21 Adjusting the boom angle to the mast.
Page 22 Using the system.
Limits for using the system
Page 23 Warranty
Page 24/25 Spare parts
Pages 26+ Mainsail design specifications
PRELIMINARY CAUTIONS
The PROFURL in-boom mainsail reefing system is not designed to be installed on
wooden masts, or aluminium masts with track added with screws, rivets, glue or any
similar assembly. Fitting on a carbon mast is not recommended an requires special
skills. Please contact us.
Please check that there is no sign of severe corrosion on the mast which would
compromise the strength of the assembly.
The person in charge with fitting will be fully responsible for installation and adaptation
on board according to the specifications shown in this manual.

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I - GENERAL DESCRIPTION
Note : names in bold refer to parts identified on next page
The PROFURL in-boom furling system includes :
1. One set of luff profiles (1 and 2) articulated on the aft face of the mast .
There are 2 different kinds of luff profiles : one 0.60 m long feeder profile (1) on
which the feeder (3) is attached, and several 2 meters long normal luff profiles (2)
depending on the mainsail’s luff length. One of these 2 meters long normal luff
profiles (2) will be re-cut to length at its upper end to match the expected luff
length of the boat. The different luff profiles (1 et 2) are connected to each other by
mean of connectors/articulations (4), which are connected to articulation
brackets (5) attached on the aft face of the mast.
CAUTION : thearticulation brackets (5) have a stainless steel pin. Check the
difference with end brackets (6), which have Nylon flanges (55).
2. Articulation brackets (5) attached to the mast with 2slide screws (7) slipped in the
mast groove. Every slide screw (7) has a thread and a flat end going through a hole
of the articulation brackets (5). The thread of the slide screws (7) receives a
washer (33) and locknut (8) for attachment.
3. Connectors/articulations (4) also used to connect the different luff profiles (1 and
2), held by set screws (9). The lower end of the 0.60m longfeeder profile (1) will be
connected on thegooseneck articulation (10), thus allowing the luff profiles (1 and
2) to rotate together with the boom.
4. A sheave box (11) through which the mainsail halyard is passing. The sheave box
(11) will be fit at the top of the luff profiles (1 and 2). It is assembled on the end
brackets [2times (6)], themselves being attached by mean of slide screws (7) and
locknuts (8).
5. A gooseneck (12) fit on the mast with 2slide screws (7), and 2 gooseneck plates
(13) cambered at the mast shape before fitting, and which will be riveted onto the
mast with theconical head pop rivets (14) supplied.
6. A boom profile(15) which has been delivered either in 4 or 5 meters. It may be re-cut
to length when fitting to match the expected boom length.
7. A mandrel (16) which turns on bearings (17 and 18) fit on a bearing holder (19) at
the rear end of the boom, and on the drum bearing holder (21) front, turning around a
pin inserted in each of the boom end fittings (22 and 23). When re-cutting the
boom profile (15) to length, themandrel (16) should also be re-cut.
8. A drum boom end fitting (22). It includes the drum (21) fit onto the mandrel (16):
the drum being loaded with the furling line supplied, by pulling on the furling line and
releasing the mainsail halyard it will rotate themandrel, which will furl the sail.
9. 2 adjustablemainsheet bails (25). More mainsheet bails are optional.
10. A specialboomvang (27). It is attached :
- onto the mast by mean of aboomvang attachment, including an gooseneck (12)
attached onto the mast with 2 slide screws (7) locknuts (8) and 2 gooseneck
plates (13) which will be riveted on the mast with pop rivets (14) with conical head
supplied. The boomvang lower end will be attached onto an articulation eye (49)
rotating in the boomvang gooseneck (56).
- onto the boom with a boomvang hound (28).
11. A ball bearing block (52) to lead the furling line (51) to the cockpit.
12. A boom brake

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TOOLS NEEDED FOR FITTING
In all cases of fitting
nA measuring tape
nAn electric drill
nA set of drills
nA hack saw with a (new) blade with small teeth
nA file
nA pencil
nA plastic hammer
nA 13 mm pipe-wrench
nA 19 mm pipe-wrench
nA dynamometrical wrench (1daN/m)
n1 set of Allen wrenches (supplied)
n2 clamps with opening 300 mm
nUniversal pliers
nA cutter blade (with new blades)
nA large sheet of paper with corners perfectly at 90° and adhesive tape
nSeveral small plywood or rubber shims.
nA pop rivet gun for 5 mm stainless steel rivets.
Note : the plates to fit the gooseneck and boomvang attachment are 8 mm thick and
made out of aluminium. A convenient hydraulic or mechanical press should be used
to bend them at the mast shape, fitting them on the mast with the clamps.
If the fitting is made on a standing mast
nA Boson’s chair
nSome short ropes of 8 or 10 mm diameter.
II - PREPARATION
II.1 - UNFITTING THE HARDWARE FROM THE MAST
II 1 a - Dismantle the original gooseneck, as well as cleats, winches and winches
brackets on the mast, as well as any piece of equipment which would interfere with the
fitting of the new gooseneck and with the ability for the forward boom end fitting to rotate
when the boom should swing from one side to the other. Please see § III 1 b and
drawing 1 for dimensions of the new gooseneck in relation with mark «C » on the
mast.
II 1 b - The original boomvang attachment should not be used, as the axis of rotation of
the boom and of the new gooseneck need to be in line, which would never be the case
with the original boomvang fitting.
II 1 c - Dismantle the original feeder (if any) at the mast track entrance.
II 1 d -Check that the slide screws (7) supplied have suitable dimensions for the mast
track. If not, their width should be modified (turned, machined, grinned, filed) accordingly.
In all other cases please contact us.
SLIDE SCREWS Width may be
reduced if
necessary

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III - INSTALLATION
III 1 - DETERMINING THE HEIGHT OF THE GOOSENECK
III 1 a -To avoid any potential conflict between the boom and the cabin top, a bimini, a
lifeline or any other piece of equipment, please accurately mark the level of the lower
edge of the original boom. Please see drawing 1.
III 1 b - Check that the boomvang delivered with your system will make once installed an
angle of minimum 30° with the mast and the boom. Should it not be the case, the
position of the new gooseneck must be fit higher on the mast in order to obtain this
minimum 30°angle.
Information: pin to pin boomvang length : 1400 mm open / 1305 mm closed
III 1 c - Draw a line « C » on the mast at the level of the lower edge of the original boom.
Please see drawing 1.
III 1 d -Draw a line « B »on the mast at 364mm (1’ 2 21/64”) above line «C ».The line
«B » will correspond to the level of the upper edge of the gooseneck plates (13) once fit
on the mast.
III 2 - FITTING THE SLIDE SCREWS INTO THE MAST TRACK
III 2 a - Insert the head of the slide screws (7) into the mast track. The number of slide
screws you need to insert depends on the number of articulation brackets :
A- two slide screws are needed for the boomvang attachment. Slide
these slide screws down to the mast foot to later fit the boomvang
attachment (§ III 11, and drawing 13).
B- Slide four slide screws (7) into the mast track for the upper end
brackets (6).
C - Slide as many times two slide screws (7) into the mast track as the
quantity of articulation brackets (5) to be fit. Please see drawing 5.
III 2 b - Move the stacked slide screws mentioned in above Band Cupwards onto the
mast above the mast track opening, and temporarily hold them with adhesive tape to
prevent them slipping out of the track.
III 2 c - Slide 2 extra slide screws (7) into the mast track for fitting the gooseneck.
Drawing 1

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III 3 - FITTING THE GOOSENECK
III 3 a - Attach the gooseneck (12) to the mast track at the convenient height (§ III 1) with
the 2 corresponding slide screws (see § III 2 c) and corresponding locknuts (8).
Tightening torque must be 1 to 1.5 daN/m. Please see drawing 4.
III 3 b - Bend the aluminium gooseneck sideplates (13) with the clamps to accurately
camber them to the mast shape. During bending please protect the plates from dings
and dents.
III 3 c - Screw the sideplates (13) onto the gooseneck. Would the sideplates be too
long, they can be re-cut if necessary, keeping in mind too much length is always better
than too little.
III 3 d - Draw lead lines for drilling on the side plates (13). Press the side plates on the
mast with clamps ( please protect the plates with convenient means). Drill at Ø 5 mm
and machine holes so that the conical heads of the pop rivets (14) will be flush with the
surface of the side plates. There should have at least 12 pop rivets (14) on each side
plate (13).
III 3 e – Fit the Nylon washer 29a onto the vertical gooseneck pin. Temporarily fit the
gooseneck articulation (10) onto the gooseneck (12) as well as Nylon (29) and stainless
steel (30) washers and tighten the low aspect nut (31) and Nylock (30a).
III 4 - ASSEMBLING THE LUFF PROFILES
Fitting at this stage will be easier flat on the ground.
III 4 a - Fit the luff profiles (1 et 2) together starting with the feeder profile (1) where the
feeder (3) is attached to. The lower end of this feeder profile can be identified by the luff
grooves have been machined off . Please see drawing 2.
III 4 b - Completely insert a connector/articulation (4) at the upper end of the feeder
profile (1) so that the Nylon bushing is turnedtowards the lower end of the feeder profile.
Please see drawing 4.
III 4 c - Fit and tighten the set screws (9) at the upper end of the feeder profile.
III 4 d - Fit a 2 meter long normal luff profile (2) onto the connector/articulation (4) which
has been fit as above.
Caution :check again that the collars of the Nylon bushings (57) of the
connectors/articulations (4) are turned towards the lower end of the luff profiles
column.
Drawing 3Drawing 2

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III 4 e - Fit and tighten the set screws (9) onto the luff profiles. Fit with the same method
all the luff profiles (2) except the last 2 meter normal profile.Please see drawing 7.
III 4 f -Hoist the above luff profiles column from the aft side of the mast by preferably
using the existing topping lift.
Caution: during hoisting check that the luff profiles are kept as straight as possible by
pulling from the bottom end of the luff profiles.
III 4 g - Completely insert the lower end of the feeder profile (1) into the striped
aluminium connector of the gooseneck articulation (10) . Please see drawing 4.
III 4 h - Climb the mast taking with you:
•the two end brackets (6). Please see drawing 6
•all the articulation brackets (5). Please see drawing 5
•the sheave box (11). Please see drawing 6
•all the slide screws (7) to be slipped upwards in the mast track, and
locknuts (8).
Drawing 4

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III 5 - FITTING THE ARTICULATIONS BRACKETS ONTO THE MAST
III 5 a - Consider the 2 lower slide screws (7) stacked above mast track entrance.
III 5 b - Fit an articulation bracket (5) onto these slide screws with the stainless steel pin
pointing upwards (please see drawing 5), and completely insert the Nylon bushing of the
connector/articulation onto the stainless steel pin.
III 5 c - Fit washers (33) and locknuts (8) onto the thread of the slide screws (7).
Tightening torque should be 1 to 1,5 daN/m.
Caution : during fitting the articulation brackets (5) onto the connector/articulations (4),
permanently check that the feeder profile is indeed fully inserted into the gooseneck
articulation (10). Please see drawing 4
III 5 d - Fit all the articulation brackets (4) with the same procedure.
III 6 - FITTING THE SHEAVE BOX
III 6 a - Slide up in the mast track the 4 remaining slide screws (7).
III 6 b - Temporarily fit the 2 end brackets (6) and the sheave box (11) so that the rear
upper end of the sheave box leaves a minimum clearance of 20 mm with the
backstay(s). Please see drawing 7.
Drawing 5
Drawing 6

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III 6 c - Draw a line « A » on the mast corresponding to the position shown on drawings
7 and 8.
Drawing 7

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III 7 - MEASURING AND FITTING THE UPPER (CUT) LUFF PROFILE
III 7 a - Accurately measure the length« A to D ». Please see drawing 8.
III 7 b - Mark length “ A” to “D “ on the remaining luff profile (2) and cut it at this exact
length. File smooth the cut edge .
Note: in case of a very flexible mast, or fractional rig, cut profile at “A” to “D” minus 15
mm, and leave the 15 mm as a play between the cut edge of the profile and “A”.
III 7 c - Fit without tightening the 2 set screws (9) on the threads located at the opposite
side of the cut end.
III 7 d - Hoist the cut luff profile (2).
III 8 - FITTING THE UPPER (CUT) LUFF PROFILE ONTO THE SHEAVE BOX
III 8 a - Slightly ease the 4 slide screws (7) which hold the upper end brackets (6) and
remove the sheave box (11).
III 8 b - Insert the striped aluminium bar of the sheave box (11) into the cut end of the luff
profile (2).
Note: in case of a very flexible mast, or fractional rig, leave 15 mm play between the
top end of the profile and “A”.
III 8 c- Insert the bottom end of the luff profile (2) into the uppermost
connector/articulation (4).
III 8 d - Fit again the sheave box (11) onto/between both end brackets (6) and fasten the
4 slides screws (7) to permanently secure this assembly.
III 8 e - Tighten the set screws (9) at the bottom end of the cut luff profile (2).
III 8 f - Follow the path for the mainsail halyard as shown on drawing 7.
Drawing 8

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III 9 - CUTTING THE BOOM PROFILE AND THE MANDREL TO LENGTH
III 9 a-HOW TO CALCULATE THE LENGTH OF THE BOOM PROFILE.
Case # 1: The PROFURL boom overall length should be the same as the one of the
original boom.
Case # 2: The PROFURL boom being delivered in over length, the opportunity may
be taken to make the boom longer. Caution : changing the boom length
could affect the balance at the helm when sailing under sails. In this case
check that the aft end of the boom cannot touch the backstay or any other
piece of equipment on board.
In both cases please refer to drawing 9 for dimensions.
The PROFURL in-boom reefing system is delivered pre-assembled and in over-length.
The boom profile (15) and the mandrel (16) will probably have to be re-cut to length to
match the boat’s requirements when fitting the system.
CAUTION : should the complete length of the boom profile be used, the rear
boom end fitting is just temporarily attached to the boom profile for shipping.
Please follow the fitting procedure from § III 9 c 7 and on, as if the boom profile
had been re-cut.
III 9 a 1 - To cut the boom profile (15) and the mandrel (16) to length, first dismantle the
rear boom end fitting (23) from the boom profile and pull out the mandrel (16) from the
boom profile.
Caution : during dismantling, the mandrel (16) will not be held any more. Please keep
control about the mandrel potentially falling down when pulled backwards. Also mind
not to lose the washer (20) located forward of the drum (24) .
Drawing 9

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III 9 a 2 - To re-cut the boom profile (15) to length, and to make sure that the cut section
is accurately perpendicular to the profile, wrap a sheet of paper or mylar (with accurate
right angle corners) so that the edges are in perfect line, and attach it with adhesive
tape. Please see drawing 10. Draw a line on the boom profile, following the edge of the
sheet where the boom profile will be cut.
III 9 a 3 - Cut the boom profile according to the line and file edge smooth.
Drawing 10

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III 9 b-CUTTING THE MANDREL TO LENGTH
The mandrel (16) should be re-cut by exactly the same amount as the one having been
cut off from the boom profile. (Example: if you have re-cut 312 mm from the boom profile, you
should also re-cut 312 mm from the mandrel)
III 9 b 1 - Remove the bearing holder (19)+bearing (18) assembly from the rear end of
the mandrel (16).
III 9 b 2 - Cut the mandrel (16) at its rear end with the same procedure as the one having
been used for cutting the boom profile (15), same as § III 9 a 2. File smooth the rear
(cut) end of the mandrel and foot track ends.
Caution : the forward (drum) end of the mandrel (16) must not be cut!
III 9 b 3 - Fit again the bearing (18) and bearing holder (19) into the cut/rear end of the
mandrel. Tap a thread at M6 (6mm) at opposite from the grooves at 25 mm (1”) from
the cut end. Fit and tighten screw (38).
III 9 b 4 - In case the mandrel has been cut a little too short, the fore and aft play must be
reduced to a minimum. To do this, loosen the screw (38), push the mandrel forward, pull
out the bearing holder (19) so that the washer (20) touches backwards, tighten again
screw (38).
III 9 c - FITTING THE MANDREL ONTO THE BOOM
III 9 c 1 - Before fitting the mandrel (16) into the boom profile (15) turn the boom
upside down to fit the gooseneck articulation (10) onto the drum boom end fitting
(22) with the pin (34) and open the split pin (35).
III 9 c 2 - Fit the mandrel (16) into the boom profile (15), fit the washer (20) and the drum
bearing (18) onto the stainless steel pin (36) inserted in the drum boom end fitting (23).
III 9 c 3 - Check that the mainsheet bails (25) and boomvang hound (28) are properly fit
in the bottom track of the boom as shown on drawing 11.
III 9 c 4 - Slide the bearing (18) located at the rear end of the mandrel (16) onto the
stainless steel pin inserted in the rear boom end fitting (23).
III 9 c 5 - Completely insert the rear boom end fitting over the rear (cut) end of the boom
profile (15). Tip :A ratchet tie down strap is a handy tool to do this.
III 9 c 6 - Drill holes ∅5mm at the rear end of the boom profile (15) through the pre-
drilled holes of the rear boom end fitting (23). Fit the corresponding flat head pop rivets
(24) supplied in these holes to permanently attach the boom end fitting onto the boom
profile.
Drawing 11

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III 10 - FITTING THE BOOM ONTO THE GOOSENECK
III 10 a- Hoist the boom with a halyard and a topping lift (drawing 12) by keeping it as
horizontal as possible.Pull it backwards at the same time.
III 10 b - Slide from underneath all together ( same as § III 3 e) :
1. the vertical aluminium striped bar of the gooseneck articulation (10) into the
bottom end of the feeder profile (1).
2. the vertical stainless steel pin of the gooseneck articulation (10) into the
corresponding vertical hole of the gooseneck fitting (12).
III 10 c - Fit the nylon washer (29a) onto the vertical stainless steel pin (10). Insert
vertical pin into the gooseneck fitting (12). Fit stainless steel washer (29) on the thread.
Permanently fit and tighten with a 19 mm tube or ratchet wrench onto the thread the low
aspect locknut (31) and Nylock (30a). Fit the plastic cap over the Nylock.
Caution : do not drop or raise the boom more than 15° from horizontal position
as it could cause permanent damage to the gooseneck.
From this stage and on the luff profiles must turn together with the boom.
Drawing 12

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III 11 - FITTING THE BOOMVANG HOUND AND THE BOOMVANG
Reminder: the ideal working angle of the boomvang being 45° the boomvang must
not angle less than 30 ° with the mast or boom.
III 11 a- Fit the boomvang attachment fitting (56) with the two slide screws which had
been stored at the mast foot (§ III 2 B).
III 11 b - Bend the aluminium gooseneck sideplates (13) with clamps to accurately
camber them to the mast shape. During bending please protect the plates from dings
and dents.
III 11 c - Would the sideplates be too long, they can be re-cut if necessary, keeping in
mind too much length is always better than too little.
III 11 d - Draw lead lines for drilling on the side plates (13). Drill at Ø 5 mm and machine
holes so that the conical heads of the pop rivets (14) will be flush with the surface of the
side plates . There should have at least 12 pop rivets (14) on each side plate.
III 11 e - Fit the stickers (33) onto the plates to hide the head of the pop rivets. Do the
same for the gooseneck plates ( please see § III 3 e).
III 11 f - Fit Nylon washer (29) onto the pin of the articulation eye (49). Fit pin into the
gooseneck attachment, fit the washers (30 and 29a) and locknuts (31 and 30a).
III 11 g - Fit the boomvang onto the articulation eye (49) and onto the boomvang hound
(28). Fit the pins and the split pins.
You can now release the topping lift.
Drawing 13

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III 12 - ADJUSTING THE POSITION OF THE MAINSHEET BAILS
III 12 a - Adjust the position of the mainsheet bails (25) with the set screws which can be
reached from underneath. Fasten the mainsheet blocks on the mainsheet bails.
CAUTION : on boats with a mainsail track or mainsail block attachment on deck ahead
of the main hatch the mainsheet bails (25) must be re-positioned as far backward as
possible.
III 12 b - Push the boom by hand over the lifelines as far as possible and tie a knot on
the mainsheet so that in no case the boom profile can be damaged by the rearmost
shrouds when running downwind or jibing.
III 13 - INSTALLATION OF THE CONTROL LINES TO THE COCKPIT
REMINDER TO AVOID FRICTION
1. Only use good quality ball bearing blocks, which will have to be cleaned and
lubricated from time to time as per manufacturer’s specifications.
2. Use ball bearing blocks with a sheave of large diameter.
3. Reduce as much as possible the number of lead blocks between the drum and the
cockpit.
4. Reduce as much as possible the angle of deviation of the control lines.
III 13 a - Attach the ball bearing block supplied at the mast foot on starboard at the
convenient position to lead the line into the middle of the drum at 90° angle .
III 13 b - Pass the furling line supplied from underneath through the block, then
through the hole of the drum’s shaft and a tie small knot at its end so that the knot will
be completely hidden inside the drum’s shaft. (Please see drawing 14).
III 13 c - To fill the drum with line turn the mandrel (16) by hand towards port side
(seen from above) so that the furling line exits from the drum on the starboard side.
III 13 d - Fit another ball bearing block at the mast foot to lead the mainsail halyard to
the cockpit. Remind to use the right type and dimensions of blocks.
III 13 e - Check that the exit from the mast of the mainsail halyard does not bring too
much chafe.
Drawing 14

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IV - FITTING THE MAINSAIL
⇒Please check again that the foot tracks have been filed smooth at the rear (cut)
end before starting inserting the foot tape of the sail.
CAUTION : before operating the PROFURL in-boom reefing system please make
sure that :
1) the mainsail construction and design are in accordance with the attached
specifications. Please refer to the attached mainsail design
specification.
2) the boomvang angle adjustment ( please see §VI) is correct. This adjustment is
an essential point to get a good quality furling of the mainsail as well as ease of
operation.
IV 1 - Turn the mandrel (16) by hand so that the tracks (please see drawing 15) are
upwards.
IV 2 - Donot yetinsert the mainsail battens into the batten pockets.
IV 3 - Insert the tack slide (48) into the tack webbing with the flat part backwards and
lock the webbing ahead of the two small plastic cylinders.
IV 4 - Insert the webbing with the tack slide into the port side foot track. Please see
drawing 15.
IV 5 - Insert the bolt rope foot tape into the same port side track and gently pull the
sail forward.
IV 6 - Once almost at the fore end insert the clew slide (49) into the clew webbing so
that the webbing is locked between the two small plastic cylinders of the clew slide
(48), and insert the clew slide into the groove of the mandrel (16). Pleas see drawing
16.
IV 7 - Lock the flat part of the tack slide into the machining of the mandrel groove and
pull the sail backwards to lock. Please see drawing 15
Drawing 15
Drawing 16

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IV 8 - Slide the clew pin (50) with the ring upwards into the foot track ends (16).
Please see drawing 16.
IV 9 - Lash a line between the clew webbing and the ring of the clew pin (50) and
tension the foot of the sail. Check to tie or cut any loose extra length of lashing line.
IV 10 - Insert the battens into the batten pockets.
IV 11 - Attach the halyard onto the head of the mainsail.
IV 12 - Unscrew by about 3 turns only the port side plastic knob (46) of the feeder (3)
to increase the gap between the bronze rollers (40).
IV 13 – Insert the « continuous » port side luff tape between the bronze rollers of the
feeder and hoist by hand only a few centimetres of sail.
IV 14 -.Slide the starboard side « head » luff tape into the starboard luff groove. Luff
entry for this starboard luff tape is located just above the feeder (3) at the connector
level. V - FEEDER ADJUSTMENT
The feeder has features allowing :
* to very accurately trim the gap between the 2 bronze rollers (40) to exactly match
the bolt rope diameter.
* to quickly increase the gap between the bronze rollers to easily insert the bolt
rope/luff tape into the groove of the luff profiles after the sail has been furled or
removed.
* to instant bring back the correct gap for feeding the sail into the groove of the luff
profile to use the system .
V 1 - ADJUSTMENT OF THE GAP BETWEEN THE ROLLERS (PLEASE SEE DRAWING 17)
V 1 a – Completely screw by hand but do not over tighten the port side knob (46)
of the feeder.
V 1 b – Release screw (63).
V 1 c - Adjust the starboard side plastic screw (41) with the adjustment tool (67)
inserted into the holes of the screw’s flat head, till feeling that the luff tape in pinched.
Then unscrew it back by about ¼of turn to make the luff tape free to slide up and
down. The adjustment is now correct. Lock again screw 63.
V 1 d - Hoist the sail by gently pulling on the halyard.
V 1 e - To lower or furl the sail, release the halyard.
Drawing 17