Marquis 420 Sport Coupe Owner's Manual page 26

B S
oating afety
The following chart displays some possible situations
where CO may accumulate. Become familiar with these
examples and the suggested precautions to help prevent a
dangerous accident.
14
Blockage of exhaust outlets
can cause carbon monoxide
to accumulate in the cabin and
cockpit area - even when the
hatches, windows, portholes
and doors are closed.
Exhaust from another vessel
alongside your boat, while
docked or anchored, can emit
poisonous CO gas inside the
cabin and cockpit areas of your
boat.
The station wagon effect or
back drafting can cause CO
gas to accumulate inside the
cabin, cockpit and bridge
areas when operating the boat
at a high bow angle or with
improper or heavy loading.
CO gas can accumulate in the
cabin, cockpit and bridge areas
when operating your boat at
slow speeds or when the
boat is stopped in the water.
A tail wind can also increase
accumulation (force of wind
entering from aft section of
yacht).
The station wagon effect or
back drafting can cause CO
gas to accumulate inside
the cabin, under protective
weather coverings, cockpit or
bridge areas when the boat is
underway.
https://www.boat-manuals.com/
S
ection
PrECAUTION: Never operate
the generator while the boat
is moored against any other
boat, dock or wall structure that
could block the exhaust outlet.
PrECAUTION: Be alert for
generator and engine exhaust
from other vessels alongside
your boat. Provide adequate
ventilation.
PrECAUTION: Provide
adequate ventilation,
redistribute the load or bring
your boat out of high bow
angle. Open forward hatch or
window.
PrECAUTION: Provide
adequate ventilation or slightly
increase speed if possible.
Open forward hatch or window.
PrECAUTION: Provide
adequate ventilation when
the canvas top, side or back
curtains are in their closed,
protective positions. Open
forward hatch or window.
3837 • U3 10/07
1