Standard
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AS 4177.3-2004
[Pending Revision]Specifies the classification, design, interchangeability dimensions with tolerances, finish and marking requirements for coupling bodies for 50 mm towballs, intended for trailers and caravans up to 3.5 t aggregate trailer mass, for use on public roads.
Published: 17/06/2004
Pages: 9
Table of contents
Cited references
Content history
Table of contents
Header
About this publication
Preface
1 Scope
2 Referenced documents
3 Definitions
4 Rating
5 Design and construction
5.1 General
5.2 Locking onto the towball
5.3 Angles of movement
5.4 Dimensions for interchangeability
6 Finish
6.1 General
6.2 Working surface
6.3 Protective coatings
7 Performance requirements
7.1 General
7.2 Static test
7.3 Dynamic test
7.4 Ball pull-out test
8 Marking
9 Installation requirements
Appendix A
A1 Scope
A2 Principle
A3 Apparatus
A4 Procedure
A5 Report
Appendix B
B1 Scope
B2 Principle
B3 Apparatus
B4 Procedure
B5 Report
Cited references in this standard
[Current]
Caravan and light trailer towing components, Part 1: Towbars and towing brackets
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