iron fastenings are used on the aluminum as these metals are incompatible and
electrolytic decomposition will start at once.
Check the tang fittings for lower shrouds and mounts for the spreaders as you
proceed up the mast. Carefully check all tangs, straps and fittings at the
masthead.
Examine the main and jib halyard sheaves for signs of wear or jamming. If you
see anything that looks at all unusual, ask your dealer or local boatyard for
assistance. Be certain that the boom is inspected carefully, with particular
attention to the gooseneck fittings, sheet blocks and bales. The combination bow
and deck light should also be checked. It is good practice to change the bulbs
every year as a mid-season failure is very difficult to correct. Record bulb sizes
and carry spares aboard your boat.
The spreaders that support the upper shrouds should be inspected. They are
designed to angle slightly upward to best support the mast in column. The
inboard and outboard ends should be covered with chafe tape or spreader boots to
prevent tearing sails or halyards. If any damage is sustained during mast stepping
or winter storage, replace the spreader. DO NOT sail with defective spreaders,
spar or hardware.
2.2-2 Rigging
Standing rigging consists of shrouds and stays which support the mast in an
upright position. Running rigging is used to hoist or trim sails. Standing rigging
requires attention, as a failure could result in the loss of a mast. Most failures
occur from lack of attention, poor tuning or improper maintenance rather than a
structural failure.
Before stepping your mast each season inspect all standing rigging thoroughly.
Starting at the top of the mast, systematically check each upper shroud and stay
tang and be certain that each clevis pin is secured with a cotter pin properly in
place and bent over. Wipe down each shroud and stay with bronze wool dipped
in a solution of water and mild detergent. The bronze wool will catch any broken
wire in the rigging, calling attention to potential trouble; it will not leave steel
particles to rust and soil your sails. Follow the bronze wool with a piece of
terrycloth sprayed with a water-dispersing agent, such as CRC or WD-40.
Next, see that the spreaders are firmly fastened in place, and that the upper
shrouds are locked in place on the grooved end of the spreader with a short length
of stainless steel wire. You should use a spreader boot or some other form of
chafing gear to protect your sails from the spreader tip. Check the mast tangs,
clevis pins and cotter pins for the lower shrouds and stays. The tangs for the
lower shrouds are designed to allow for some movement in them, so do not
overtighten the tang bolt.
- 18
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