You must comply with this standard if you are manufacturing or modifying components for articulated vehicle combinations used in heavy road vehicles, B-doubles and road trains in normal use on both sealed and unsealed roads.
This standard is in 3 parts:
- part 1 - specifies the attachment design forces for fifth wheel assembly and equations to determine the required D-value of components for various combinations. It applies to fifth wheel assemblies used with 50 mm, 75 mm and 90 mm kingpins, and associated equipment
- part 2 - specifies performance requirements and recommendations for the installation of fifth wheel assemblies used with 50 mm, 75 mm and 90 mm kingpins
- part 3 - specifies requirements for 50 mm, 75 mm and 90 mm kingpins and requirements for mechanical properties, dimensional standards for interchangeability and dynamic testing.
