Cal Boats CAL 27 Mk III, Руководство пользователя

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STEPPING AND TUNING THE MAST 11
STEPPING AND TUNING THE MAST
Before stepping the mast, be sure all running and standing rigging is properly installed,
cotter pins are spread, and halyard sheaves are free to rotate . The upper shroud is run through
the groove in the outboard end of the spreader; on either side of the groove is a hole . Through
these holes run a stainless wire . Wrap it around the stay several times in such a manner as to
prevent the shroud from jumping out of groove . After the shroud is wired in place, tape over
all the wire to protect the sails, and to prevent the wire from unraveling . Check the spar lights
to be sure they are operational . Open all turnbuckles to their full extension .
Cal 35 and Cal 39: Refer to Separate Sheet for Mast-Collar Instructions .
Step the spar through the deck and table (if applicable), and then on to the mast step . Be
careful not to pinch the mast wires during the stepping . (Cal 35 and Cal 39 – The mast step
was set at the factory to provide an aft rake . If you wish to adjust this, loosen the mast-step
bolts and slide the step fore or aft .) Attach all the shrouds; tighten the headstay, backstay, and
upper shrouds to a taut condition .
For now, leave the lower shrouds slack . Adjust the headstay and backstay to achieve a
straight spar, when sighting up the trailing edge . Next, with the boat level athwartship,
tighten the upper shrouds to get the mast straight . Finally, tighten the lowers no more than
hand tight .
Final tuning must be accomplished while sailing . In a light breeze (6–8 knots) adjust the
shrouds to achieve a straight spar on either tack . In heavier winds, any curvature should be
gradual and constant from the deck to the mast head . After the initial sail, go below, and drill
through the spar and install the bolt that passes through the mast collar ears and spar (Cal
35 and Cal 39) . This serves to hold the deck from flexing and should not be installed until
the boat has been sailed and the rig tuned, to assure proper location of the hole . The rig will
need adjustment after a few sails to compensate for the stretch in the wire . Be sure to install
cotter pins in all turnbuckles and clevis pins, and tape over them to prevent injury to crew or
damage to sails . Fine tuning for the best performance will depend upon your local conditions
and your sails . Consult your dealer or local sailmaker for their suggestions .
WARNING: WHEN HAULING, LAUNCHING, AND SAILING NEAR LOW OVERHEAD WIRES,
CARE MUST BE TAKEN THAT THE MAST NOT COME IN CONTACT WITH SUCH WIRES .
CONTACT COULD CAUSE THE MAST TO CONDUCT ELECTRICITY AND CAUSE INJURY OR
DEATH .