Selden Adjustable Tack Swivel

The Selden Adjustable Tack Swivel (ATS) is designed to easily trim the luff of the gennaker. The ATS is installed on to the anti torsion cable (AT) and the gennaker luff is attached to the ATS instead of the built in tack swivel. The ATS is free to slide up and down the AT cable and if attached to a downhaul, can easily be handled from the cockpit. Instead of trimming the luff by slacking the halyard, the AT cable can now be permanently tensioned and always ready for furling.

The ATS can be attached to the AT cable during installation or retrofitted. See the Downloads tab for installation instructions.

Available in four models for the associated model GX Furler

Manual for Adjustable Tack Swivel

GX7.5, GX10, GX15 & GX25

1 Basic info

1. 2. 3. 4. The “Adjustable Tack Swivel” (ATS), fitted to the AT-cable, provides a floating tack performance.

With an ATS it is possible to have both tack adjustability and possibility to furl the sail.

For new GX-systems the ATS should be fitted onto the AT-cable before the same is connected to the GX-line

lock. (See item 4.1; “Mounting on a new GX-system during assembly”).

The ATS can also be retrofitted to an existing GX-system. (See item 4.2).

2 How to fit to the boat

1. 2. 3. 4. Connect the tack of the sail to the upper swivel ring using the included tack line. Relative close fit is

recommended.

Connect the tack control line to the loop on the lower swivel ring, at the opposite side of the knots. We

recommend to use a Snap Shackle for easy connecting procedure.

Let the tack control line pass through a lead or block, mounted on the boat close behind the GX-lower swivel.

Thereby it is possible to have the control line permanently mounted on the deck. (See fig.2.a).

The tack control line dimension should be suitable for use on a winch and any line locking devise (stopper,

cam cleat, etc).

Fig. 2.a3 Operation

3. Furling

Make sure the GX-system/AT-cable is tensioned hard.

Pull the tack control line and the tack of the sail to its lowest position.

Furl the sail according to the GX-manual.

3.2 Unfurling:

Make sure the GX-system/AT-cable is tensioned hard.

Make sure the tack control line is connected, tensioned and secured.

Unfurl the sail according to the GX-manual.

4 Mounting instruction

4.1 Mounting ATS on a new GX-system

The ATS should be fitted onto the AT-cable before the same is connected to the GX-line lock!

1. Unscrew the two grub screws at ATS, one by one and apply the enclosed locking adhesive on the threads.

Refit the Grub screws.

2. Feed the ATS over AT-cable. Make sure the rounded top pointing upwards and the screws downwards.

3. Continue the assembly of the GX-system according to the GX-manual.

4.2 Retrofitting ATS on a GX-system

4. 5. 6. 7. 8. 9. Unscrew the two locking screw on the GX-lower swivel which secure the AT-cable socket.

Unscrew the Socket/AT-cable from lower swivel.

Unscrew the two grub screws at ATS. Remove the sleeve halves.

Feed the ATS hub over the socket/AT-cable and put back the sleeve halves. Make sure the rounded top

pointing upwards and the screws holes downwards.

Lock the sleeve halves in places with the two grub screws by using the enclosed locking adhesive on the

threads.

Refit the socket/AT-cable into the lower swivel and tighten hard. Release until the groove in the socket aligns

with the locking screws. Apply locking adhesive and tighten the locking screws.

If the previously assembled heat shrink cover has been damaged, wrap a few turns of a high quality tape.