C&C Yachts Mega, Руководство пользователя

Страница: 17 / 44

May 15, 1978
6.3 Stepping the Spar (cont’d)
Tie all running rigging together and secure tightly to the spar with light tine at a point that
will be just above the tabernacle when the spar is stepped. The mast on the MEGA must be
supported aft while being pinned at the tabernacle. The mast raising option includes a crutch.
This or a similar support must be utilized to support the mast as you move it aft on the boat
until the top hole of the two holes just above the base is aligned with the top hole in the
tabernacle. Insert the bolt through the tabernacle and mast. Secure it snugly with the lock nut.
Do not tighten at this time.
Ensure all shrouds are secured to the spar at their upper ends with the Gibb T-ball hooks.
Once the Gibb T-ball hook is installed, a piece of-tape over the opening above the hook will
prevent it from coming out during the stepping procedure. Once stepped, this is not of
concern - the Gibb T-ball hooks cannot come out. Attach the main and lower shroud
turnbuckles to their chainplates. Back off the turnbuckles several turns to ensure easy
stepping. Count the turns so you can return to the original position and "tune".
Attach the backstay and slack it off to its maximum. Also ensure that the twinstay is free and
clear.
If you have the optional mast stepping A-frame, rig in accordance with instructions provided
in this manual (Sec. 6.4). Otherwise, prepare a rope sling which will take the weight of the
spar. A 10-foot line, minimum 5/8" diameter tied, in a loop will suffice. Place the loop
around the spar below the spreaders and OUTSIDE THE RUNNING RIGGING. THE
FORESTAY, BACKSTAY AND MAIN SHROUDS MUST BE OUTSIDE THE SLING.
Make fast a 1/2" tie-down line to the sling, securing the other end to a cleat at the bottom of
the spar. This line prevents the load of the spar being carried by the spreaders when the spar
is raised to a vertical position. It also facilitates pulling down the sling after the spar is
stepped. Attach the lifting hook to the sling. In some instances the crane height may not be
sufficient therefore the sling must be positioned below the mid point of the spar.
Snug up all turnbuckles. Replace clevis pins and cotter pins. To help prevent damage to sails,
insert all clevis pins fore to aft or outboard to inboard and tape over the cotter pins. Release
all running rigging and lead to the appropriate blocks and winches.
To unstep the spar, reverse the above procedure. Before removing the spar for winter storage,
make a diagram of the location of the running rigging to serve as a quide when the mast is
restepped. DO NOT use masking or filament tape on the spar. DO NOT expose a spar
wrapped in plastic to sunlight. It is better to leave a stored spar unwrapped.