J/Boats J/145, Руководство пользователя

Страница: 37 / 51

J/145 OWNER GUIDE 38
Tuning The Rig
Tuning the Mast
Please refer to special manufacturer instructions for the Hall carbon fiber mast included at the end of this
guide.
•
The standard headstay length is designed to allow sufficient rake for good upwind balance with
either small or large jib. The Harken MK III Unit 2.5 furler fits the standard –22 rod headstay. The
Navtec pull-truded Kevlar backstay is set-up with a toggle under the hydraulic cylinder to allow for
articulation when not under load. This should not be removed. The mast step also has a range
of adjustment.
•
After the mast is stepped a Spartite kit has been provided in order to support the spar completely
at the deck. Please follow the installation instructions from Spartite to install properly. After the
Spartite sets, add a large bead of silicone around the mast to eliminate incremental wicking of
moisture belowdecks.
•
After taking up the upper and lower shrouds hand-taught to center the mast (using the main
halyard to equalize distance to the port and starboard rail), apply maximum backstay on the
cylinder to bend the mast.
•
Tighten the upper shrouds equally to port and starboard with a wrench.
•
Release the backstay and tighten the lower shrouds to straighten the mast and establish the
correct amount of pre-bend recommended by your sailmaker
•
The middle section of the mast is held in place laterally by intermediate shrouds (or diagonals)
which attach to the mast below the top and middle spreaders, and terminate at the middle and
lower spreader tips, adjusted with turnbuckles. Most people tend to overtighten these on their first
try. It’s easiest to adjust the upper sets of diagonals to 2-3 turns less than hand tight while the
mast is on the ground. Don’t adjust them again until after you tune under sail.
•
Double check your tuning handiwork by looking up the backside and front side of the mast to be
sure that it is straight from side to side.
•
Go sailing in 12-14 knots of wind with 80-90% backstay pressure. Chances are your leeward
upper shrouds will look loose. If so, take up on the leeward upper 2-3 turns, then tack and adjust
the other upper shroud the same. Continue back and forth until you’ve eliminated any visible
slack in the leeward upper shroud. Release backstay to medium pressure, site up the mast to
check side-to-side straightness, and then tighten the leeward lower shrouds as necessary to
straighten the side to side.
•
Check straightness and repeat the process making minor correcting adjustments to leeward
rigging only. Pin and tape the shrouds when finished.
Rigging The Boom
Run the single line 1
st
reef/cunningham from the clew to the forward end of the boom, up through a
sheave on the boom, to an individual turning block attached to a SS hook (this hooks into tack reef
grommet in sail). This line then leads down to the turning block at the mast collar, through the organizer
and aft to a rope clutch. The 2
nd
clew reef line leads in a similar fashion but exits the boom down to the
mast collar block then aft.
•
Attach boom gooseneck to lug on mast with large clevis pin.
•
Attach hydraulic cylinder to mast lug at deck and then boom lug (hoist end of boom with main
halyard if necessary).
•
Install mainsheet block (Harken 100mm) on bail at end of boom.
•
Install mainsheet per rigging diagram.