Wellcraft 180 SPORTSMAN O/B, Руководство пользователя, Страница: 25 / 180

While underway, CO concentrations can increase
by backdrafting or “the station w agon effect.”
Backdrafting is caused b y factors such as rela-
tive wind direction, speed or the bow being too
high. To prevent this, open hatches and operate
blowers whenever possible to pro vide positive
airflow through the hull.
Boat houses, sea walls and other boats in
close proximity or confined areas can con-
tribute to increased CO le vels. Operators must
be aware that operation, mooring and anchor-
ing in an area with other boats puts them in
jeopardy of CO accumulation from other
sources. Likewise, a boat operator must be
aware of the effect of his actions on other
boats. Operation of the engines while moored
may cause CO accumulation on your boat and
those around you.
2-7
FIGURE 2.7 VESSEL ALONGSIDE
FIGURE 2.10 RUNNING ENGINE IN
CONFINED AREAS
FIGURE 2.8 HIGH BO W ANGLE
FIGURE 2.9 WHILE UNDER WAY
BACKDRAFTING Station Wagon Effect
(Inefficient Trim Angle): Under certain
conditions, moving air currents can
direct carbon monoxide fumes into the
boat (Figure 2.8). These fumes can
accumulate to dangerous levels with-
out proper airflow. Provide adequate
ventilation, redistribute the load or
bring boat out of high bow angle.
WARNING
!
Hull exhaust from your boat while under-
way can cause excessive accumulation
of poisonous carbon monoxide gas
within the cabin and cockpit areas of
your boat when using protective
weather coverings (Figure 2.9). Provide
adequate ventilation when the canvas
top, side curtains and/or back curtains
are in their closed protective positions.
WARNING
!
Hull exhaust outlets near a pier, dock,
seawall or outlets blocked by any
other means can cause excessive
accumulation of poisonous carbon
monoxide gas within the cabin areas.
Make sure hull exhaust outlets are not
blocked. (Figure 2.10)
WARNING
!
Engine exhaust from your boat when
operating at slow speed or stopped in
the water can cause excessive accu-
mulation of carbon monoxide within the
cabin and cockpit areas. Tail wind can
increase accumulation). Provide ade-
quate ventilation or slightly increase
speed if possible.
WARNING
!
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