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J/Boats 70, Owner'S Manual

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J/Boats 70 Owner'S Manual Download Page 19

J/70   Owner   Guide   

   

Page      

   

   

   

©   Copyright   2013,         J   Boats,   Inc.      All   Rights   Reserved   

19   

J/70   Backstay   System      

   

5mm DYNEX 75 Backstay

Forged Shackle

Soft Eye Splice One Side

Harken 29mm Fixed Block 348 on SS Eye Strap 073 (P&S)

Harken 29mm Cheek
Block 350 (P&S)

Harken Micro Cam Cleat

w/fairlead 468/424 (P&S)

Harken 29mm Carbo T2 Blocks

Sling Splice one side with plastic ball

Forged Shackle

Summary of Contents for 70

Page 1: ...Yacht Name Owner Name...

Page 2: ...J 70 Owner Guide Page Copyright 2013 J Boats Inc All Rights Reserved 2...

Page 3: ...ockpit Safety Lines 14 Running Rigging 15 Rigging Your J 70 16 Mainsheet Traveler 18 Backstay System 19 Boom Vang Cunningham 20 Halyard Mast Base Layout 21 Headstay Layout 22 2 1 Jib Sheet Layout Boom...

Page 4: ...porting outfitting the vessel with proper safety equipment and the safe operation of the vessel Your J Boats Dealer will be happy to refer you to Boating Safety Courses or other seminars available Ple...

Page 5: ...uble shooting guide In case of difficulty refer to the boat dealer builder or its representative Always use trained and competent people for maintenance fixing or modifications Modifications that may...

Page 6: ...turer s Recommended Maximum Total Load 530 kg 1 168 lbs Includes crew This assessment has been made assuming that all standard equipment is aboard and that the boat in light craft condition has a mass...

Page 7: ...il Area OD Class 16 07 sq m 173 sq ft Spinnaker Area OD Class 45 61 sq m 491 sq ft I 8 159m 26 77 ISP 9 189m 30 15 J 2 341m 7 68 P 7 973m 26 16 E 2 877m 9 44 Height above road on Triad Trailer approx...

Page 8: ...ts com 401 846 8410 Manufacturer C C Fiberglass Components Inc 75 Ballou Blvd Bristol RI 02809 info ccfci com www ccfci com 401 254 4342 J 70 Suppliers Phone Web Global BSI Inc foredeck hatch 45 7322...

Page 9: ...on air dry gelcoat finish Interior Structure J 70 interior structure includes several transverse bulkheads a V berth platform reinforced keel trunk and longitudinal hull support members Each of these...

Page 10: ...nt end of cockpit until the cutting blade hits the G 10 composite cutting block that s molded into the hull Once the cutter has been used several times a narrow groove will develop in the G 10 block w...

Page 11: ...lace a clear soft PVC trailing edge protector and shipping straps to hold the keel down against the trailer from the top Rudder Tiller and Steering Hardware J 70 rudder is molded with E glass VE resin...

Page 12: ...nd boat can then be locked For the covered position the cover should be installed to its hinges and the shock cord attached to the SS eye mounted to the underside of the cover This is designed to firm...

Page 13: ...a jam cleat and cheek block for the inboard end of an optional owner supplied clew reef line IMPORTANT CARE SHOULD BE TAKEN WHEN HOISTING AND LOWERING THE MAST TO FIRST REMOVE THE VANG LUG AND TO PROP...

Page 14: ...ce through the forward one Pull tight to luggage tag the safety line to the padeye Thread the aft end eye splice through both stanchions and the lifeline pad s and reinsert the thimble it will be some...

Page 15: ...ts of the J 70 The package includes each line in labeled bags with an inventory list included in the sealed Marlow box This box is not opened until the boat is delivered to the dealer or customer A co...

Page 16: ...in place to the pin centerline of the bottom turnbuckle Consult your sailmaker for more specific recommendations Install headstay Install all side shrouds Be sure that the five black rubber plugs are...

Page 17: ...ge mast step over the SS loop of the deck fitting This will require someone to lift the mast at the aft end of the boat and or can be achieved by fashioning a support reference Appendix C Dec 13 2013...

Page 18: ...am Traveler Track 2721 1 2m Harken Traveler End Stop 264 Continuous 2 1 Traveler Control Line J 70 Traveler Layout J 70 Original Mainsheet Layout 5mm Dyneema Strop Harken 57mm Carbo Fiddle Block w bec...

Page 19: ...y System 5mm DYNEX 75 Backstay Forged Shackle Soft Eye Splice One Side Harken 29mm Fixed Block 348 on SS Eye Strap 073 P S Harken 29mm Cheek Block 350 P S Harken Micro Cam Cleat w fairlead 468 424 P S...

Page 20: ...Harken 150 Cam w 425 Fairlead Port Stbd Harken 40mm Carbo T2 Loop Blocks 2148 one on vang lug one each on mast strap eyes P S J 70 Boom Vang Layout J 70 Cunningham Cunningham 3mm D12 Dyneema through s...

Page 21: ...on Ronstan SS Hook 4 1 Jib Halyard Purchase Line Harken 291 Mast Mounted Harken 40mm T2 Loop Block 2148 for Jib halyard tail Jib Halyard Purchase Strop Harken 40mm T2 Loop Block 2148 Harken 29mm T2 Lo...

Page 22: ...Harken 207 Top Swivel ref Appendix C J 70 Techincal Bulletin 1 11 13 for proper alignment T Bar Eye Custom SS 316 Southern Spars w 5mm marine eye Headstay Wire 5mm 1 x 19 SS with 5mm marine eye termi...

Page 23: ...Car with S40 Orbit Block Ronstan RC72581 Series 25 Track End Stop 2 1 Jib Sheet terminates on front of Car J 70 Jib Sheet Layout C 2 9 Antal Clew Reef Sheave Clew Reef Exit Clew Reef Jam Cleat Harken...

Page 24: ...J 70 Owner Guide Page Copyright 2013 J Boats Inc All Rights Reserved 24 J 70 Deck Layout...

Page 25: ...Reserved 25 J 70 Bow Sprit Furler Controls 0 4 C Ronstan Fairleads for jib furler control Ronstan SS Lined Fairleads for jib furler control Ronstan SS Lined Fairlead pole control line Pole Control Lin...

Page 26: ...Owner Guide Page Copyright 2013 J Boats Inc All Rights Reserved 26 J 70 Bow Drainage Locker Access Sealed Removable Access hatch Sprit Furler Drainage Locker Drain Hole starboard side Harken Furler D...

Page 27: ...stop plate to prevent keel from being over hoisted Removable Handle Nylock nut Allows alternative use of a long 3 4 socket combined with a power drill for keel hoisting or deployment operations Pleas...

Page 28: ...Rights Reserved 28 J 70 Hull Reference Line 1 6 2 4 1 6 2 4 1624 162 4 615 535 477 452 450 700 J 70 Hull Stripe Reference Line 4 19 12 Vertical dimensions in MM taken from lower tangent point of hull...

Page 29: ...battery charge for outboard Remove all trailer tie down straps except for bow winch strap Rig the keel crane and lift keel off the keel support tray Extend optional trailer extension if necessary Laun...

Page 30: ...e Point Lift The J 70 is equipped with two substantial padeyes installed on either side of the keel below the keel cover Both padeyes are designed for use along with a secured lifting strap for haulin...

Page 31: ...straight side to side while taking a site up the mast track Tighten the backstay lashing adjustment so that with the backstay control line released the backstay bridle rests approximately 12 14 inches...

Page 32: ...the lower shroud and the mast While it is possible to hoist by going outboard and around behind the shrouds J 22 J 80 style it s a lot of extra distance to travel and one risks dragging the tack foot...

Page 33: ...therwise left entirely to the owner to determine when a survey should occur KEEL KEEL FLOORS Overview One of the most critical areas of a modern fin keeled composite boat is the keel and keel floor ar...

Page 34: ...ere is ingress through cracks in the paint gelcoat in the bilge The process of hydrolysis is persistent and invisible it s water that chemically degrades the quality and strength of the laminate over...

Page 35: ...ntered over the boat and such that the mast is in column or straight as you site up the mast groove on the aft side Proper tuning for all conditions usually means maintaining enough tension on the shr...

Page 36: ...an integral bulkhead housing support The system can easily be damaged particularly when struck laterally or vertically at the end of the pole with any force e g when rounding marks hitting sterns hit...

Page 37: ...ly encourage all owners to start by inspecting their boats now to best ensure a long productive life FOOTNOTE The contents of this article are thought to be accurate but do not necessarily include all...

Page 38: ...3 Jib Halyard Hoisting Tail 1 5 Control Line Tech Red 25mm soft eye no core eye whip 11 5 Jib halyard hoisting tail are spliced together Jib Halyard Purchase 1 6 8 Plait Prestretch Lime Heat shrink He...

Page 39: ...70 Owner Guide Page Copyright 2013 J Boats Inc All Rights Reserved 39 Appendix C Technical Bulletins The following pages include all relevant technical bulletins for the J 70 since launch in March 201...

Page 40: ...arrangement of the block Chafe appears to be the most likely cause in this case While the discovery and solution process moves forward dealers and owners can take immediate pro active precautions whil...

Page 41: ...rough the larger slot on the underside of the keel crane to the Harken thru deck block mounted on the crane and then directly into the winch 4 The twist shackle and floating 308 Harken Block should NE...

Page 42: ...ff centerline We expect this may have been the source of the chafe and ultimate line failure that took place in the field 6 Once the top of the keel is lifted fully and reaches the stop plate on the k...

Page 43: ...to provide for driver comfort Reason for change to minimize long term owner replacement expense While soft lifelines are the latest fashion we ve found them more susceptible to wear and tear than wir...

Page 44: ...em A second swivel is installed between the top of the forestay and the T fitting that connects to the mast Both swivels should be installed with their split rings upward Any owner boat with an invert...

Page 45: ...he crane and pull it through the block and back through the holes in the crane to the winch 2 Lightly sand 150 200 grit the back side of the chafe guard and the area around the long opening and glue t...

Page 46: ...rews under the deck in the bow 2 Making sure there is not an excessive amount of line on the furler drum When the jib is fully rolled plus a few turns to wrap the sheets around it there should be only...

Page 47: ...If you come back an hour later and release chances are that half the gap will be gone and if you do the same over a few days it will likely be very close If the backstay bridle ends up a bit too long...

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