S_c-yachts Yachts SC 420 User Manual

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420 Instruction Manual 2008 Edition
Introduction
The boat comes with all gear ready to sail, however there is a certain amount of assembly which we hope we can
cover in this instruction manual and through the tuning guide, that will make it much quicker to assemble and get your
S|C 420 on the water ready for sailing or racing.
All the parts come in the boats except the masts, which will be located in the container together. So after you find the
mast you must then open up your boat and assemble in any order that suits your requirements. In the below
information and also with the assistance of the tuning guide, you should be able to correctly set up each specific part
of the boat.
Mast
The mast comes with the adjustable spreaders and you will need to bolt these on (nuts and bolts provided), also put
the shroud in the spreader end using a screwdriver (position the shroud wire behind the bolt). Fasten the shroud and
the trapeze lines in with the T terminals before attaching the shroud to the spreader end. You will also need to feed
the ropes into the mast via the mouse line supplied, the best way to do this is to tape the two ropes together securely
prior to pulling the new line through. The spreader adjusters work very well and 1 full turn is equal to 5mm of pre bend.
To set these up originally I recommend pulling on a reasonable amount of tension, then step back 15 metres + and
line up the shroud wire just above the shroud adjuster and then compare the shroud/spreader position. Make these
even first before attempting to tune the rig, also I advise having more bend than required originally and then reducing
it once you are close to the tuning numbers on the rig tension and mast rake.
Rigging Pack
Below is a picture of the rigging pack supplied by Seldon. You will find in it the Topper and Topper Hook, the Main
Halyard, the Spinnaker Halyard, the Trapeze Wires, the Forestay and Forestay Halyard, the Shrouds, the Rig Tension
Strop, the False Forestay and lastly the Inner Forestay (to this the Forestay Spinner, is required to be added by
putting on above the swage and inserting the bolt, so it cant come back off).
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Summary of Contents

Page 1

420 Instruction Manual – 2008 Edition Introduction The boat comes with all gear ready to sail, however there is a certain amount of assembly which w

Page 2

Sails One main, jib and spinnaker are supplied inside the boat and will be ready to sail including numbers and country code if known at the time of m

Page 3

Boom One boom is supplied as shown below, all gear should be on or in the boom. Set the vang slide to 625mm to the centre of the slide from the back o

Page 4

Mast Base The mast step bolt should be in the 6th hole from the back. The rig tension bolt should be in the 3rd hole from the back. Spreader Length

Page 5

Rope Bag In the rope bag is a list of all the ropes on the boat. This list shows which ropes are already on the boat and also which ropes come in the

Page 6

Vang Have the rope strops and vang blocks attached as shown above to the mast collar. The other end should be attached as the below illustration show

Page 7

Plastic Rope Balls These two rope balls should be used on the pole downhaul system in front of the knot (see picture under mast base) and also on the

Page 8

Centreboard Fastening The centerboard comes with an alloy blue bush, this should be positioned in the CB pivot hole prior to inserting into the case.

Page 9

Wind Indicator We have provided a complimentary High Performance New Zealand made wind indicator, this comes in it’s own box and has instruction manu

Page 10

Rudder Stock One rudder stock is supplied with the boat and can be taken on and off the boat by removing the top safety pin through the gudgeon pintl

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