Harken 2234 Bosun's Chair - Manual (Page 7)

03/11/13 Bosun's Chair — Sailboat 7
SAILING System Requirements
Two suspension systems are required. When used for aloft rigging
separate full-body harness must be used along with bosun's chair.
Harness and bosun's chair must each have its own halyard led to
separate internal halyard sheaves as instructed below. Each halyard
must go to separate stopper and winch.
WARNING! Both equipment and people can fail to secure
a suspended person—using only a single halyard greatly
increases risk of serious injury or death. Use two halyards,
one to full-body harness.
Use only halyards with internal mast sheaves. Critical parts of externally
attached masthead blocks can wear, corrode, or crack. Because they
cannot be inspected easily, failure can happen suddenly and unexpectedly
WARNING! Do not use externally attached masthead blocks.
Always use internal halyards to avoid a fall.
Inspect
External Halyard
CORRECT INCORRECT
Internal Halyard
WARNING! Halyards that are frayed, worn, or degraded from UV damage can part suddenly, leading
to a fall. Use only halyards in new condition.
WARNING! If working on mast with furler do not go aloft if there has been a halyard wrap that was
forced by trying to furl. Weight of being aloft can cause stay or connecting fittings to break, causing
mast to collapse, leading to a fall.
Inspect all stays and standing rigging for any signs of wear, fatigue, or damage. If boat is equipped with furler, know
history of stay inside furler. If there has been a halyard wrap, do not rely on stay to hold mast. It may be weakened
and not visible under foil.
Inspect condition of all halyards to make sure all parts are in new condition. If necessary use trace lines to run
halyards out of mast to inspect. Inspect halyards for wear, fraying, or degradation from sun's UV rays. Replace
halyards showing any of these signs before going aloft. Use only halyards that are in new condition. If there is
any doubt about condition of halyard, do not use.
SAILING