Australian Standard AS 1773: 1990 Articulated Vehicles - Fifth Wheel Assemblies - Western Australia

Service summary

You may be required to comply with this standard if you intend to operate a B-double or road train. Fifth wheel couplings and turntables used in your B-double or road train must comply with this standard.

This standard sets out the attachment design forces for fifth wheel assembly and equations to determine the required D-value of components for various combinations. This standard applies to fifth wheel assemblies used with 50 mm, 75 mm and 90 mm kingpins, and associated equipment for articulated vehicle combination, used in heavy road vehicles, B-doubles and road trains, in normal use on both sealed and unsealed roads.

The particular version of the standard you must comply with is AS 1773-1990 Articulated Vehicles - Fifth Wheel Assemblies. Please consult the Contact Officer for more information and to ascertain the level of compliance (if any) that may be required.

Service type

Code of Practice

A code of practice can be either a legal requirement or non-legal requirement. Legal codes of practice are defined as a result of legislation. Non-legal codes of practice are defined by industry regulators and bodies.

Administering agency

Department of Transport
Transport Services
Driver and Vehicle Services

Act(s) name

Road Traffic (Vehicles) Act 2012 (Western Australia)

Regulation(s) name

Road Traffic (Vehicles) Regulations 2014 (Western Australia)

Contact details

Enquiries, Vehicle Safety and Standards Section
Department of Transport
Transport Services
Driver and Vehicle Services

Operating address:
21 Murray Road South
Welshpool
Western Australia 6106

Phone:

13 11 56

Fax:

08 9216 3899

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