Clasification Society Rulefinder 2020 - Version 9.33 - Fix
Statutory Documents - IMO Publications and Documents - Resolutions - Assembly - IMO Resolution A.581(14) – Guidelines for Securing Arrangements for the Transport of Road Vehicles on Ro-Ro Ships – (Adopted 20 November 1985)Amended by MSC/Circular.812Amended by MSC.1/Circular.1355 - Annex - Guidelines for Securing Arrangements for the Transport of Road Vehicles on Ro-Ro Ships - 7 Stowage

7 Stowage

  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:

  • .1 The parking brakes of each vehicle or of each element of a combination of vehicles should be applied and locked.

  • .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.


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