Fifth wheel or turntable assemblies in heavy vehicles - Queensland


You must comply with the following standards if you intend to manufacture or modify a heavy vehicle that will be used in a B-double or road train:

  • AS 1771-1987 installation of fifth wheel and turntable assemblies (sets out recommendations for minimum requirements for the installation of both fixed and sliding assemblies on prime movers for normal use)
  • AS 1773-1990 articulated vehicles - fifth wheel assemblies (specifies dimensional and functional requirements, ratings, and dynamic and static testing).

Service type

Code of Practice

A code of practice is a set of rules which details how people in a certain industry should behave. A code of practice can be defined as a result of legislation or by industry regulators and bodies.

Administering agency

National Heavy Vehicle Regulator

Contact details

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