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AS
AS 4177.2-1994

AS 4177.2-1994

Superseded

Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

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Caravan and light trailer towing components - 50 mm towballs

Available format(s)

Hardcopy , PDF 1 User , PDF 3 Users , PDF 5 Users , PDF 9 Users

Superseded date

30-06-2017

Language(s)

English

Published date

01-01-1994

Publisher

Standards Australia

1 - AS 4177.2:1994 CARAVAN AND LIGHT TRAILER TOWING COMPONENTS - 50 MM TOWBALLS
4 - PREFACE
4 - CONTENTS
5 - 1 SCOPE
5 - 2 REFERENCED DOCUMENTS
5 - 3 DEFINITIONS
5 - 3.1 Aggregate trailer mass
5 - 3.2 Ball coupling
5 - 3.3 Coupling
5 - 3.4 Coupling body
5 - 3.5 Drawbar
6 - 3.6 Gross trailer mass
6 - 3.7 Light trailer (TB)
6 - 3.8 Shall
6 - 3.9 Shank-type towball
6 - 3. 10 Should
6 - 3.11 Towball
6 - 3.12 Towbar
6 - 3.13 Towing lug
6 - 3.14 Very light trailer (TA)
6 - 4 MECHANICAL PROPERTIES
6 - 5 DESIGN AND CONSTRUCTION
6 - 5.1 General
6 - 5.2 Shank type towballs
6 - 5.3 Dimensions for interchangeability
6 - 5.4 Methods of attachment
6 - 5.4.1 Means of retention
6 - 6 FINISH
6 - 6.1 Surface roughness
7 - 6.2 Corrosion protection
7 - 7 PERFORMANCE REQUIREMENTS
7 - 7.1 General
7 - 7.2 Static strength test
7 - 7.3 Dynamic strength test
7 - 8 MARKING
9 - APPENDIX A - STATIC STRENGTH TEST
9 - A1 SCOPE
9 - A2 PRINCIPLE
9 - A3 APPARATUS
9 - A4 PROCEDURE
9 - A5 REPORT
11 - APPENDIX B - DYNAMIC STRENGTH TEST
11 - B1 SCOPE
11 - B2 PRINCIPLE
11 - B3 APPARATUS
11 - B4 PROCEDURE
12 - B5 REPORT

Specifies design, standard dimensions with tolerances, method of attachment, finish and marking requirements for shank-type 50 mm towballs which are used on motor vehicles for towing trailers up to 3.5 t aggregate trailer mass. A static test for longitudinal loading in tension and compression, and a dynamic test are given in the appendices.

Committee
ME-052
DocumentType
Standard
ISBN
0 7262 8779 2
Pages
8
PublisherName
Standards Australia
Status
Superseded
SupersededBy
Supersedes
UnderRevision

This Standard specifies requirements for motor vehicles towing very light and light trailers of up to 3.5 t aggregate trailer mass by means of a ball coupling, in normal use on sealed and unsealed roads.NOTES:1 Towbars and coupling bodies are specified in AS 4177.1 and AS 4177.3 respectively.2 Requirements for off-road applications are beyond the scope of this Standard.3 Requirements for shank-type 50 mm towballs only are specified.4 Towing bracket and towballs complying with ISO 1103 and 3853 are also acceptable.

Under Revision see DR 03261 First published as part of AS D18-1968.Revised and redesignated in part as AS 4177.2-1994. First published as part of AS D18-1968. Revised and redesignated in part as AS 4177.2-1994.

AS 4177.3-1994 Caravan and light trailer towing components Coupling body for ball couplings
AS 1443-1994 Carbon steels and carbon-manganese steels - Cold-finished bars
AS 2465-1981 Unified hexagon bolts, screws and nuts (UNC and UNF threads)
AS 2536-1982 Surface texture
AS 4177.1-1994 Caravan and light trailer towing components Towbars and towing brackets

AS 4177.3-1994 Caravan and light trailer towing components Coupling body for ball couplings
AS 1443-2004 Carbon and carbon-manganese steel - Cold finished bars (Reconfirmed 2022)
AS 4177.1-1994 Caravan and light trailer towing components Towbars and towing brackets
AS 1443-1994 Carbon steels and carbon-manganese steels - Cold-finished bars

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Hardcopy - English
PDF 1 User - English
PDF 3 Users - English
PDF 5 Users - English
PDF 9 Users - English
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