7.1 Depending on the area of operation, the predominant
weather conditions and the characteristics of the ship, road vehicles
should be stowed so that the chassis are kept as static as possible
by not allowing free play in the suspension of the vehicles. This
can be done, for example, by compressing the springs by tightly securing
the vehicle to the deck, by jacking up the chassis prior to securing
the vehicle or by releasing the air pressure on compressed air suspension
systems.
7.2 Taking into account the conditions referred
to in 7.1 and the fact that compressed air suspension systems may
lose air, the air pressure should be released on every vehicle fitted
with such a system if the voyage is of more than 24 hours duration.
If practicable, the air pressure should be released also on voyages
of a shorter duration. If the air pressure is not released, the vehicle
should be jacked up to prevent any slackening of the lashings resulting
from any air leakage from the system during the voyage.
7.3 Where jacks are used on a vehicle, the chassis
should be strengthened in way of the jacking-up points and the position
of the jacking-up points should be clearly marked.
7.4 Special consideration should be given to the
securing of road vehicles stowed in positions where they may be exposed
to additional forces. Where vehicles are stowed athwartship, special
consideration should be given to the forces which may arise from such
stowage.
7.5 Wheels should be chocked to provide additional
security in adverse conditions.
7.6 Vehicles with diesel engines should not be
left in gear during the voyage.
7.7 Vehicles designed to transport loads likely
to have an adverse effect on their stability, such as hanging meat,
should have integrated in their design a means of neutralizing the
suspension system.
7.8 Stowage should be arranged in accordance with
the following:
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.1 The parking brakes of each vehicle or of each
element of a combination of vehicles should be applied and locked.
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.2 Semi-trailers, by the nature of their design,
should not be supported on their landing legs during sea transport
unless the landing legs are specially designed for that purpose and
so marked. An uncoupled semi-trailer should be supported by a trestle
or similar device placed in the immediate area of the drawplate so
that the connection of the fifth-wheel to the kingpin is not restricted.
Semi-trailer designers should consider the space and the reinforcements
required and the selected areas should be clearly marked.