Selden RB Manual de usuario
1
Contents: Page: Contents: Page:
Product description 2 Spare mainsail 9
Checks and adjustments before stepping 4 The sail 10
Operation & operational hints 6 Running cables 11
Fitting and hoisting the sail 8 Maintenance 12
Before sailing 9 Dismantling 14
Manual for Furling mast
TYPE RB/RC
595-020-E
2007-10-03
2
Product description
Seldén Mast in-mast furling mast is a mainsail reefing and furling system.
The furling geer has been developed from experience gained from FURLEX foresail roller-reefing, and is
dimensioned for the toughest conditions.
The unique design of the halyard swivel bearing distributes the load over the whole ball-race to give
smoother furling and the lowest possible friction.
The entire reefing mechanism can be easily removed from the mast for service. Stainless steel thread inserts
are used for all screws, so that dismantling is easy even after many years usage in a corrosive environment.
The mast extrusion has an additional luff groove for a storm trysail or spare main. A foresail with rope luff
could be hoisted.
This Instruction Manual has been compiled to give you information on the in-mast reefing system. Study it
and follow the instructions carefully, and we guarantee you many years of pleasurable use from your Seldén
Mast in-mast furling mast.
Follow the relevant rigging instructions in our booklet ”HINTS AND ADVICE” for tuning the rig.
Asymmetric luff extrusion giving reduced initial resistance to reefing due to easier bending of the luff.
Sail compartment
Fig. 2:1
Cable conduits
3
Extra sheave box for furling
jib halyard
Top swivel
Halyard swivel
Topping lift, 1:2 ratio
Sail feeder
Clew outhaul car
Clew outhaul
Reefing winch
Kicker bracket
Turning blocks
Access to sail feeder and haly-
ard swivel
Access to tack hook and
tensioning screw
Access for
greasing
Opening for in-mast
stowage of halyard tail
Cable exit
Fig 3.1
Outhaul fairlead
Reefing gear
(in-mast furling gear)
4
1. Remove the access covers.
Depress one button and push. Lift the opposite end and remove.
Fig. 4.1
Fig. 4.2
Luff extrusion adjustment
Checking luff extrusion tension prior to stepping the mast
The luff extrusion is correctly tensioned before leaving the factory, but tension can be re-checked before
stepping
the mast.
Lay the mast horizontally, and check that the extrusion is just clear of the mast wall at its mid point. If adjustment is
neccesary see points 1-5 below.
If adjustment has to be made after the mast has been stepped, then the luff extrusion should be so tensioned that it
does not beat against the mast walling when you grasp it throught the upper access hole and shake it.
Most of the extrusion will be resting on the aft face of the sail compartment when sailing.
DO NOT OVER-TENSION! A luff extrusion that is over-tensioned will increased furling friction.
5
1.
2.
Undo the lock retaining screw and free the
locking tube.
Push the locking tube upwards
while at the samt time
turning the tack hook o
ut of its key-hole slot.
The ten-
sioning screw is now freed.
Twist the tack hook back to
w
ards the t
e
nsioning screw
so that it will not get snagged d
uring step 4.
so that it will not get snagged during step 4.so that it will not get snagged d
3.
4.
Using an adjustable wrench prevent the locking tube
from turning while adjusting the luff extrusion tension
by turning the reefi ng winch.
The fi nal turn should ensure that the tack hook and its
key-hole slot will mate up.
Lower the locking tube while at
the same time enga-
ging the tack hook into the key-hole slot.
Replace the lock retaining screw.
Locking tube
Locking retaining screw
Tensioning screw
Tack hook
6
Operation & Operational hints
Reefing and unreefing is accomplished with a reefing line and an outhaul, either through working at the mast,
(see fig. 7.1). or by the lines for operation from the cockpit.
If in-mast furling mast is to be operated from the cockpit then a reefing line in the form of an endless loop in
combination with a self-tailing winch is recommended. The loop should be sufficient long to permit easy remo-
val from the winch. Slack on the unloaded side of the loop should be taken up and held with the aid of a cleat or
a Clam-cleat. A rope stopper can also be used, but the reefing line will have to be spliced after being threaded
through it.
A self-tailing winch is also recommended for the outhaul. Fig. 6.1 and 6.2 illustrate two possible arrangements.
Arrangement with self-tailing winches and belaying cleat for the endless reefing line.
Layout 1
Layout 2
Fig. 6.1
Arrangement with conventional winch, two Clam-cleats and a rope stopper. The rope stopper should be of the
type where the line can be eased off. (Rutgerson Ram-Jam for example).
Lead blocks
Kicker bracket/Turning blocks
Outhaul
Reefing line loop. Aluminium Clam-cleat.
(CL 238, incl. fairlead)
Rope stoppers
Lead blocks
Kicker bracket/Turning blocks
Outhaul
Reefing line loop.
Aluminium Clam-cleats.
(CL 238, incl. fairlead) Fig. 6.2
7
Alternative clew outhaul arrangement.
When reefing from the cockpit the reefing winch must be set to ”FREE”.
Use 10 mm diameter double plaited line for the endless loop.
The mast kicking bracket/turning block on the mast has removable sheaves to allow a pre-spliced endless
loop to be threaded.
Note. This turnings block are designed for use on the reefing system only.
If deck lead blocks are used we recommend those with three removable sheaves from Seldén Mast. (Part
No. 538-809-01. A pre-spliced endless loop can be threaded through them.
If fittings from other suppliers are used they should have similar features. Fittings with permanent sheaves
will entail splicing in situ, with the awkwardness that entails.
Operating hints
Unfurling
Free both sides of the endless loop from the winch and Clam-Cleat. It will then slide on the reefing winch.
Pull out the sail with the outhaul line.
Furling
The leech should be kept fairly tight when reefing or furling. Adjust the topping lift to achieve this, and the
sail will form a good tight roll around the luff extrusion.
Whilst keeping slight tension on the outhaul line, pull in the sail using the winch for the endless reefing
loop.
Reefing
Carefully slacken off the outhaul line.
Whilst continuing to ease off the outhaul, roll in the desired amount of sail.
When the desired amount of sail is rolled in, use the outhaul to stretch the foot of the sail.
When operating from the cockpit:
Make both ”sides” of the reefing line fast to prevent slip on the reefing winch. Finally, tension the outhaul.
The reefing winch should be locked (”IN”) when sailing in heavy weather so as to avoid its rotating due to
line slip. This will not prevent further reefing, but the lock must be released before unreefing.
When working at the mast:
Hold the sail to its reefed size by using the stop on the reefing winch (”IN”).
1.
2.
1.
2.
1.
2.
3.
WARNING! Never leave the handle in the reefing winch!
It will rotate very rapidly when the sail is unfurled.
Fig. 7.1 Fig. 7.2
8
4. Join the tack to the tack hook.
Remove the lock retaining screw to
free the locking tube.
Twist the tack hook away from
the keyhole slot while at the same
time raising the locking tube. (The
tensioning screw is now exposed).
Hock on the sail tack.
Lower the locking tube again while
at the same time re-engaging the
tack hock into the keyhole slot. Re-
place the lock retaining screw.
Fitting and hoisting sail
1. Check that the tack and head of the sail are made as illustrated on page 10. An incorrectly made tack can
cause wrinkles in the sail and make smooth furling difficult.
3. Join the head to the halyard swivel.
Fig. 8.1 Fig. 8.2
2. Remove the covers.
Depress one button and push. Lift the opposite end and remove.
Locking tube
Lock
re
Lock reLock
taining screw
Tack hock
Tack hock
9
Anti-vibration strip
Vibration can occur in any aluminium mast of normal design. With wind coming from approximately abeam at
speeds of 4–12 Knots the mast oscillates longitudinally at a rate of 3–6 cycles per second. Every Seldén Mast
in-mast furling mast is supplied with an ”anti-vibration strip” for hoisting in the integral sail groove to prevent
vibration starting. It will also reduce wind noise.
Port
Fig. 9.1
Starboard
Before sailing
1. Check that the sail is correctly furled on the luff extrusion: i.e. to its starboard side. (See fig. 9.1).
2. Whilst still on the mooring furl and unfurl the sail a couple of times to ensure that the system works as it
should, and to familiarise yourself with its operation, and also to check that the sail is correct size.
3. Adjust the topping lift to achieve the desired sail shape. The topping lift determines sail twist; its effect
being comparable to changing foresail sheeting angles.
Note. Turn the reefing winch clockwise for correct
furling.
5
. Hoist the mainsail whilst simultaneously ensuring that it is feeding correctly into the luff extrusion.
6. Set the halyard and cleat it with the rope stopper. The halyard tail can be stowed in the mast by
feeding it through the hole just below the halyard winch.
7
. Furl the sail until the clew is exposed. The luff extrusion is asymmetrical to facilitate rolling in one direc-
tion, and the sail should always be rolled onto the starboard side of the luff extrusion. The reefi ng winch
should be turned clockwise. See fi g. 9.1.
8
. Attach the clew to the outhaul car.
Spare mainsail
The integral luff-groove on the after face of the mast can med used for hoisting a spare sail. A foresail made to fi t
the Furlex luff foul can be used. The luff groove dimensions are the same as those for the roller extrusion, as shown
in fi g. 10.1.
If the spare sail is fi tted with slides, then Aquabatten No. A032 or Rutgerson 101 are recommended.
10
Max Sail Space
OS
20
2
5
2
5
A
T
100
B
30
Max 20
Min
The sail
The luff extrusion is asymmetrically shaped to help overcome initial resistance when starting to furl. Do not use
too heavy sail cloth in the luff area.
To improve sail shape when reefed and to reduce draft. ”Luff foam” may be used along the luff. The foam should
not be placed closer than 50 mm (2”) from the front edge of the luff as it will then increase initail reefing resis-
tance.
Sail dimensions
We recommend maxium 8 mm (5/16”) diameter luff-rope/luff-tape (maximum 7 mm (9/32”) hard line).
Luff groove dimensions are shown in fig. 10.2.
Head and tack tapes should be of soft quality which can foald easily. Do not use metal eyelets on them.
The clew cringle must not be thicker than 14 mm (35/64”) in order to fit the outhaul block.
Fig. 10.1
Extrusion
A
B
T
R 214/122
600
400
130
R 232/126
600
400
130
R 260/136
600
400
130
R 290/150
700
500
140
Boom extrusion
OS
128/90
250
150/105
250
162/125
250
189/132
350
206/139
350
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