AS 4177.3-2004

1-AS 4177.3-2004 CARAVAN AND LIGHT TRAILER TOWING COMPONENTS - COUPLING BODY FOR BALL COUPLINGS
4-PREFACE
5-CONTENTS
6-1 SCOPE
6-2 REFERENCED DOCUMENTS
6-3 DEFINITIONS
6-3.1 Aggregate trailer mass
6-3.2 Coupling
6-3.3 Coupling body
7-3.4 Drawbar
7-3.5 Gross trailer mass
7-3.6 Shall
7-3.7 Shank-type towball
7-3.8 Should
7-3.9 Towball
7-3.10 Towbar
7-3.11 Towing lug
7-4 RATING
7-5 DESIGN AND CONSTRUCTION
7-5.1 General
8-5.2 Locking onto the towball
8-5.3 Angles of movement
8-5.4 Dimensions for interchangeability
8-6 FINISH
8-6.1 General
8-6.2 Working surface
9-6.3 Protective coatings
9-7 PERFORMANCE REQUIREMENTS
9-7.1 General
9-7.2 Static test
9-7.3 Dynamic test
9-7.4 Ball pull-out test
9-8 MARKING
9-9 INSTALLATION REQUIREMENTS
10-APPENDIX A - STATIC TEST
10-A1 SCOPE
10-A2 PRINCIPLE
10-A3 APPARATUS
10-A4 PROCEDURE
11-A5 REPORT
13-APPENDIX B - DYNAMIC TEST
13-B1 SCOPE
13-B2 PRINCIPLE
13-B3 APPARATUS
13-B4 PROCEDURE
14-B5 REPORT