Contents Page Page 1 Introduction 5 Rigging 5.1 Fitting the Furlex to a stepped mast 1.1 Key features 5.2 Fitting the Furlex to an un-stepped mast 1.2 What’s included? 5.3 Routing the furling line 1.3 Main dimensions 5.4 Fitting the stanchion blocks 1.4 Safety precautions 1.5 Sail measurements 6 The Sail...
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Optimized halyard swivel A Dyneema® loop is fitted to the ring of the halyard swivel in which the halyard shackle is attached. The loop is surrounding the ring which makes for load distribution and reduced furling resistance. Tack swivel The ”free turn” of the tack ring allows for the luff to be furled one turn before the tack. This makes for a flatter and more efficient sail shape when the sail is reefed.
1.2 What’s included? Basic pack / Extended pack The Furlex TD-system includes a basic pack with drum unit, torque tube, deck fitting, halyard swivel, sail feeder, bearing halves, top guard and furling line. In addition, the extended pack also includes halyard leads, stanchion blocks and pre-feeder pack.
1.4 Safety precautions The information in this manual must be followed carefully to Fig. 1.3.a avoid damage to the system and to aviod the risk of personal injury. The warranty is only valid if the system is assembled and operated according to this manual. 10-15°...
1.5 Sail measurements Your sailmaker has all the necessary sailmaker information through the Seldén Sailmakers Guide. The Sailmakers Guide can be downloaded from www.seldenmast.com Note that if you want to use an existing sail, it will need some modifications. • The luff length needs to be adjusted.
Assembly preparations 2.1. Tools Before starting with the assembly, make sure you have the following tools available: • Hack saw • Torx bits and bit holder • Measuring tape • Knife • Hammer • Pencil If Sta-lok is to be fitted you will also need: •...
2.3 Hull attachment The lower bearing assembly of the Furlex TD system is to be considered as an extension of the forestay fitting inside the hull. As it is locked horizontally at deck level, there is a toggle fitted between the lower bearing assembly and the forestay/luff section.
2.4 Location of the through-deck hole The bearing of the through-deck fitting has a spherical surface which compensates for smaller Fig. 2.4.a angle discrepancies between forestay and through-deck fitting. However, it is important to minimize the discrepancies to achieve maximum furling performance the, angle between the forestay and deck must be between 70,5°...
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2.4.1 Mast is not stepped 2.4.2 Mast is stepped using a forestay attached to the final forestay chainplate Establish the forestay angle. Use an accurate 1. Make a jig which represents the forestay angle (FA) drawing, which shows details of the area of the above deck (See fig.
2.5 Calculating the length of the forestay wire. (The following is valid for a yacht with the mast stepped.) If a Sta-lok terminal (with or without rigging screw) is included, the wire is supplied over-length. The wire has a swaged eye terminal on one end while the other end is open (= without terminal). If your Furlex is supplied with a fixed-length forestay, with a swaged eye on one end and a swaged stud in the other end, skip this part and go directly to 2.6.
2.6 Calculating the length of the luff extrusion The Furlex luff extrusion consists of a number of shorter sections. Starting from the bottom there is a 700 mm luff extrusion connected to the drum unit and extending up to the sail feeder. Then, from the sail feeder and up there are a number of full length luff extrusions (L=2400 mm) and finally there is a 2000 mm top extrusion that has to be cut to length to suite the actual forestay length.
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If, as in our example, D becomes less than 400 mm it is necessary to recalculate as below and cut one of the full length luff extrusions according to Dnew and one of the full length distance tubes according to Enew. Note that the original top luff extrusion and the original top distance tube will now be used as intermediate extrusions.
Assembly of the Furlex system 3.1 Making deck hole and fitting of through-deck fitting The best way to decide the location of the through-deck fitting is to step the mast with a forestay, which passes through a smaller hole in the deck. If using this procedure follow the instruction starting at item 1.
8. Fit the through deck fitting. The markings (A), fore and aft of the fitting, will help to center the fitting in the longitudinal direction. The deck fitting has a compartment for sealing compound which can be used if required. Check that the through deck fitting rests against the aft edge of the hole when the the screws are tightened.
3.3 Fitting the furling line Feed the furling line through the line guide halve with the screws. Feed the rope through the two ”channels” in the drum. Fit the first screw through the rope approximately 25 mm from the rope end. Then tighten up the rope and push it into the jaw-slot before fitting the second screw.
4 Assembly Prior to the assembly of the luff extrusion, the top extrusion and the top distance tube shall be cut according to table 3. 4.1 Assembly of the luff section Luff assembly should be carried out on a clean, flat surface. Make sure there is enough space for the entire forestay length to be stretched out.
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9. Repeat for the remaining 2400 mm (94 1/2”) luff extrusions. Use short joining sleeves only. 10. Fit the long joining sleeve onto the wire. Then fit the short distance tube and finally the short 1000 mm (39 3/8”) luff extrusion. Make sure that the single hole end goes first. Fig.
15. Loosen the screws of the torque tube somewhat and feed the torque tube on to the luff section. Protect the luff section and the torque tube with paper or plastic. Secure the torque with tape before rigging. Mark the luff section 52 mm from the edge of the luff section to help aligning the screws with the holes in the luff section at a later stage.
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Space the outer strands of the wire evenly around the wedge and bring down the socket so that the strands are held in place. Hold an adjustable spanner between the 700 mm extrusion and the socket. Tapping the core of the wire, locate it firmly in the socket. Check that the core of the wire protrudes approx.
4.3 Fitting eye terminal to swaged stud (Stud/Eye) 1. Remove the toggle from the eye terminal. 2. Screw the eye terminal part onto the stud terminal until the holes in stud and eye align. 3. Fit the spirol spring pin using a hammer to permanently lock the terminal. 4.
5 Rigging The Furlex system is best transported and rigged together with the mast. 5.1 Fitting the Furlex on a stepped mast 1. Slacken the backstay as much as possible, but make sure that any rigging screw is not unscrewed so far that the threads are no longer visible ”on the inside”.
7. Slide the torque tube down and fit it to the lower bearing assembly. Align the marking on the torque tube with corresponding mark on the bearing assembly, fig 5.1.d. Apply locking adhesive to the screws and fit the bushings attaching the torque tube to the bearing assembly.
5.3 3 Routing the furling line The illustration below shows of principal arrangement of furling line routing inside a anchor well to achieve maximum furling performance. The turning block inside the anchor well and the sheave box required to lead the line through the deck are not included in the Furlex package as these parts must be individually adopted for each boat.
5.4 Fitting the stanchion blocks The Furlex 204TD kit contains 4 articulating blocks to be fitted on ø25 mm (1”) stanchions. The 304TD kit contains 1 articulating block to be fitted preferably on a Ø 25 mm (1”) pulpit and 4 fixed stanchion blocks for fitting on a Ø...
6 The sail 6.1 Adapting the sail to the Furlex system To fit the Furlex system, an existing sail may need a number of modifications. The maximum luff length is calculated as shown in Table 1 page 6 FLD-(F+E). Existing forestay length FLD as per Table 2, page 11. It is most important that the halyard swivel is located so that the halyard satisfies the 5–10°...
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6.2 Adjusting the forestay length The Furlex system may be supplied with or without an integrated rigging screw. With an integral rigging screw, the forestay length can be easily adjusted. Tensioning the forestay however, is done by tensioning the cap shrouds and/or the backstay, and not by tensioning the forestay rigging screw. The sail must be removed or unfurled and halyard slackened before the forestay length can be adjusted.
6.3 Checklist Go through the checklist below and make sure that all the important steps have been carried out. This will ensure that the Furlex system functions safely and reliably for many years and in all conditions. • Check that the angle between the halyard and forestay is 10–15° when the sail is hoisted. •...
14. When the sail is hoisted, check that the halyard swivel is at least 50 mm below the top guard and that the halyard angle satisfies the 10–15° requirement. 15. Finally, mark the halyard as shown to prevent overtensioning. This is very important! Also mark the maximum tension position of any backstay adjuster.
6.7 Reefing Furlex is provided with a tack attachment which rotates in relation to the luff extrusion. When furling and simultaneously applying a limited countertension in the sheet, the luff extrusion makes approximately one revolution before the tack fitting starts rotating as well. The part of the sail with the biggest draft will in this way be flattened.
7 Maintenance 7.1 Inspection • To ensure that the system rotates easily and functions satisfactorily year after year, regular inspection and maintenance should be carried out once a year. Maintenance is simple, even with the Furlex rigged on the boat. •...
7.4 Dismantling Never take the halyard swivel or the drum unit apart as you will find it difficult to re-assemble them correctly. (The ball-bearings are loose and difficult to refit!). Contact your Furlex dealer if service is required. 7.4.1 Sail feeder Fig.
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7.4.4 Brims Loosen the two screws little by little and pull the brims apart gradually. This way the screws and plastic locking washers will remain on the brims. Fig. 7.4.4.a 7.4.5 Disconnecting the forestay 1. Loosen the two screws of the torque tube (1). Lift up and unload the luff section before the second screw is loosened in order to prevent the luff section to slide uncontrolled onto the rigging screw.
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7.4.6 Sta-lok-terminal 1. To remove the Sta-lok eye, heat up the threads to release the locking adhesive. 2. Remove the terminal part (or rigging screw) from the socket. 3. Remove the former from the bottom of the terminal part. Fig. 7.4.6.a 4.
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7.4.9 Halyard swivel The halyard swivel is removed from the system by sliding it downwards in conjunction with dismantling the sail feeder and removing the drum unit. Alternatively, the halyard swivel can be slid up after the top guard has been removed.
7.5 Trouble shooting Problem Probable cause Action 7.5.1 ”The sail will not unfurl or will only • The jib halyard is wrapped around the • Ease the halyard slightly and try to partly unfurl.” luff extrusion. reverse the system. • Another halyard is wrapped around the •...
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7.5.5 ”The sail is hard to hoist” • The luff tape is too thick. • Return the sail to the sailmaker and refer to this manual. • The sail is caught on something or is • Arrange the sail better on the foredeck. not sufficiently loose on the foredeck.
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7 Warranty Seldén Mast AB guarantees the Furlex-system for 2 years. The guarantee covers faults arising from defective design, materials or workmanship. The guarantee is only valid if the Furlex-system is assembled, operated and maintained in accordance with this manual and is not subjected to loads in excess of those indicated in the brochure and instructions. Complete shipment and warranty conditions are to be found on Seldéns website www.seldenmast.com.
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DINGHIESKEELBOATSYACHTS The Seldén Group is the world’s leading manufacturer Seldén Mast AB, Sweden Tel +46 (0)31 69 69 00 of mast and rigging systems in carbon and aluminium e-mail info@seldenmast.com for dinghies, keelboats and yachts. Seldén Mast Limited, UK Tel +44 (0) 1329 504000 e-mail info@seldenmast.co.uk Our well known brands are Seldén and Furlex.
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