AS 4177.2-2004 Caravan and light trailer towing components, Part 2: 50 mm towballs
Standards Australia
Supersedes: AS 4177.2-1994 Caravan and light trailer towing components, Part 2: 50 mm towballs
Draft Designation: DR 03261This Standard is for towballs, including those complying with ISO 1103:1996, Road vehicles—Coupling balls for caravans and light trailers—Dimensions, and ISO 3853:1994, Road vehicles—Towing vehicle coupling device to tow caravans or light trailers—Mechanical strength test.
The objective of this Standard is to provide manufacturers with design dimensions of 50 mm towballs for towing vehicles of up to 5 t towing vehicle mass, intended for towing trailers and caravans up to 3.5 t aggregate trailer mass, for use on public roads.
In this revision, the material specification which allowed compliance with a performance criteria without having to conduct static or dynamic test, has been deleted.
Also in this revision, this Standard limits the use of the towball to vehicles with a towing vehicle mass up to 5 t.
The term ‘normative’ has been used in this Standard to define the application of the appendix to which it applies. A ‘normative’ appendix is an integral part of a Standard.
Originated as part of AS D18-1968. Previous edition AS 4177.2-1994. Second edition 2004.1: Scope
2: Referenced Documents
3: Definitions
4: Design And Construction Requirements
5: Finish
6: Performance Requirements
7: Marking
Appendix A: Static Test
Appendix B: Dynamic Test
Caravan and Light Trailer Components.
ME-052
Australian Automobile Association; Australian Automotive Aftermarket Association; Australian Chamber of Commerce and Industry; Australian Industry Group; Caravan Industry Australia; Commonwealth Department of Transport and Regional Services; Consumers' Federation of Australia; Federal Chamber of Automotive Industries; Federation of Automotive Products Manufacturers; Institution of Engineers Australia; Recreational Vehicle Manufacturers Association of Australasia; Roads and Traffic Authority of New South Wales; Society of Automotive Engineers Australia.
