Northern Territory Consolidated Regulations

AUSTRALIAN VEHICLE STANDARDS RULES - REG 161

    (1)     A fifth wheel coupling used in a B-double or road train must have a D-value complying with Australian Standard AS 1773-1990 Articulated Vehicles–Fifth Wheel Assemblies .

    (2)     A turntable used in a B-double or road train must have a D-value complying with Australian Standard AS 1773-1990 Articulated Vehicles–Fifth Wheel Assemblies .

    (3)     If a fifth wheel coupling used in a B-double or road train is built for a 50 millimetre or 90 millimetre kingpin, the coupling must:

        (a)     meet the dimension requirements in Australian Standard AS 1773-1990 Articulated Vehicles–Fifth Wheel Assemblies ; and

        (b)     not be worn away more than recommended by the standard.

    (4)     If a fifth wheel coupling used in a B-double or road train is built for a 75 millimetre kingpin, the coupling must:

        (a)     be compatible with the kingpin mentioned in rule 165(3) ; and

        (b)     not be worn away so that it does not comply with rule 162.