Document ID: chunk:federal_register_of_legislation:F2016C00773:clause:1_14:p39
Version: federal_register_of_legislation:F2016C00773
Segment Type: clause
Provision Reference: sch 1 cl 14 (pt 39/51)
Character Range: 109741–112341

this Part:
 motor vehicle  trailer

Division 1—Couplings on all types of vehicles

9.1  General coupling requirements
 (1) A fifth wheel coupling, kingpin or the mating parts of a coupling must not be used for a load greater than the manufacturer's load rating.
 (2) A kingpin must be used only with a fifth wheel coupling that has a corresponding jaw size.
Note: For example, an adaptor is not to be used to fit a kingpin to a fifth wheel coupling.
 (3) The mating parts of a coupling used to connect a semi‑trailer to a towing vehicle must not allow the semi‑trailer to roll to an extent that makes the towing vehicle unstable.

9.2  Drawbar couplings
  A coupling for attaching a trailer, other than a semi‑trailer or pole‑type trailer, to a towing vehicle must be built and fitted so that:
 (a) the coupling is equipped with a positive locking mechanism; and
 (b) the positive locking mechanism can be released regardless of the angle of the trailer to the towing vehicle.

Division 2—Additional coupling requirements for B‑doubles and long road trains

9.3  Application of Division to road trains
  This Division does not apply to a vehicle, coupling or part of a coupling that is used in a road train that has a length of 19 metres or less.

9.4  Couplings for B‑doubles and road trains
 (1) A fifth wheel coupling used to connect a towing vehicle to a semi‑trailer used in a B‑double or road train must not be built with a pivot that allows a semi‑trailer to roll relative to the towing vehicle.
 (2) Subclause (1) does not apply to a fifth wheel coupling if:
 (a) the semi‑trailer design requires torsional stresses to be minimised; and
 (b) the roll axis of the fifth wheel coupling is above the surface of the coupler plate; and
 (c) the degree of rotation allowed around the roll axis of the fifth wheel coupling is restricted to prevent roll instability.
 (3) A turntable used in a vehicle manufactured on or after the commencement of these Regulations that forms part of a B‑double or road train must be marked with:
 (a) the name or trademark of the manufacturer; and
 (b) the D‑value rating;
of the turntable.
 (4) A trailer with only one axle group or a single axle (except a semi‑trailer or a converter dolly) that is used in a road train must not have a coupling fitted at its rear.

9.5  Selection of fifth wheel couplings for B‑doubles
 (1) A fifth wheel coupling used in a B‑double 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 must have a D‑value complying with Australian