Document ID: chunk:federal_register_of_legislation:F2007C00223:body:0:p13
Version: federal_register_of_legislation:F2007C00223
Segment Type: other
Provision Reference: 
Character Range: 36428–39544

designed.

44.2.4.4.2.4.       The ball of any ball 'Coupling' fitted for use with a trailer having a 'Gross Trailer Mass' not exceeding 2,270 kg shall have a spherical working surface of 50 mm nominal diameter and shall be legibly and indelibly marked with the mark '50' in characters not les than 5 mm high. The location of the marking shall be such that it does not interfere with the normal functioning of the ball.
44.2.4.4.2.5.       The body of a ball 'Coupling' fitted to a trailer having a 'Gross Trailer Mass' not exceeding 2,270 kg, shall be legibly and indelibly marked with the following information:

          44.2.4.4.2.5.1. the manufacturer's name or trade mark,

          44.2.4.4.2.5.2. the mark '50' to indicate the size of ball to which it is designed to be attached, and

          44.2.4.4.2.5.3. the 'Gross Trailer Mass' for which the 'Coupling' body is designed (in kg).

          44.2.4.4.2.5.4. Such markings shall be in characters not less than 5 mm high and shall be located in a suitable prominent position on the 'Coupling' body.

44.2.4.4.2.6.       'Couplings' other than ball coupling fitted to a trailer shall be legibly and indelibly marked with

          44.2.4.4.2.6.1.  the manufacturer's name or trade mark; and

          44.2.4.4.2.6.2.  the 'Gross Trailer Mass' for which the 'Coupling' is designed (in kg).

          44.2.4.4.2.6.3.  Such markings shall be in characters not less than 5 mm high.

44.2.4.4.3.              Not used
44.2.4.4.4.              'Towbars' for passenger cars (MA, MB, MC)
44.2.4.4.4.1.       The 'Towbar' shall
44.2.4.4.4.1.1.      be of sufficient strength to withstand the loads imposed by the trailer;
44.2.4.4.4.1.2.      be securely attached to a substantial portion of the structure of the drawing vehicle; and
44.2.4.4.4.1.3.      be equipped with attachments for safety connections.  The attachments shall be of sufficient strength to withstand the loads imposed and prevent the front end of the 'Drawbar' striking the ground in the event of failure or accidental detachment of the 'Coupling'.
44.2.4.4.4.2.       To establish the strength of a 'Towbar', the following tests shall be carried out: When mounted with its designed attachments to the vehicle for which it is designed, or a structure representative of the vehicle, the 'Towbar' and the vehicle structure shall withstand the following loads
without incurring loss of attachments or any distortion or failure which will affect the safe towing of the trailer:

         Longitudinal tension and compression - 1.5 x the 'Towbars' specified towing capacity

         Transverse thrust – 0.5 x the 'Towbar's' specified towing capacity

         Vertical tension and compression – 0.5 x the 'Towbar's' specified towing capacity

44.2.4.4.4.3.       To establish the strength of the attachments provided on the 'Towbar' for safety connections, the following tests shall be carried out:

         The safety attachments shall withstand the following loads without failure:

           Longitudinal tension – The 'Towbar's' specified towing capacity.

           Vertical load - 0.5