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AS 1973-1993

Current
Current

The latest, up-to-date edition.

Pneumatic tyres - Passenger car, light truck, and truck/bus - Retreading and repair processes
Available format(s)

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

Language(s)

English

Published date

11-15-1993

Preview

1 - AS 1973-1993 PNEUMATIC TYRES - PASSENGER CAR, LIGHT TRUCK, AND TRUCK/BUS - RETREADING AND REPAIR PROCESS
4 - PREFACE
5 - CONTENTS
7 - SECTION 1 SCOPE AND GENERAL
7 - 1.1 SCOPE
7 - 1.2 APPLICATION
7 - 1.3 REFERENCED DOCUMENTS
7 - 1.4 DEFINITIONS
8 - 1.4.1 Asymmetric tyres
8 - 1.4.2 Bead
8 - 1.4.3 Bead area
8 - 1.4.4 Bead toe
8 - 1.4.5 Belts
8 - 1.4.6 Belt edge cover ply
8 - 1.4.7 Bias ply tyre
8 - 1.4.8 Breakers
8 - 1.4.9 Buffing
8 - 1.4.10 Building
8 - 1.4.11 Camelback tread rubber
8 - 1.4.12 Carcass
8 - 1.4.13 Carcass ply
8 - 1.4.14 Carcass separation
8 - 1.4.15 Casing
8 - 1.4.16 Cement
8 - 1.4.17 Cementing
8 - 1.4.18 Chafer
8 - 1.4.19 Cords
8 - 1.4.20 Cross ply tyre
8 - 1.4.21 Crown
8 - 1.4.22 Curing
9 - 1.4.23 Cushion gum
9 - 1.4.24 Diagonal ply tyre
9 - 1.4.25 Fullcapping
9 - 1.4.26 Heel
9 - 1.4.27 Inner-liner
9 - 1.4.28 Light truck tyres
9 - 1.4.29 Limited-run-flat tyres
9 - 1.4.30 Load index
9 - 1.4.31 Major repair
9 - 1.4.32 Maximum load rating
9 - 1.4.33 Minor repair
9 - 1.4.34 Mushroom plug
9 - 1.4.35 Optional
9 - 1.4.36 Patch
9 - 1.4.37 Ply
9 - 1.4.38 Ply rating
10 - 1.4.39 Precured retreading
10 - 1.4.40 Protective breaker / Protective belt / Protective ply
10 - 1.4.41 Radial ply tyre
10 - 1.4.42 Rebelting
10 - 1.4.43 Remoulding
10 - 1.4.44 Retreading
10 - 1.4.45 Service description
10 - 1.4.46 Shall
10 - 1.4.47 Should
10 - 1.4.48 Shoulder
10 - 1.4.49 Sidewall
10 - 1.4.50 Sidewall rubber
10 - 1.4.51 Skiving
10 - 1.4.52 Speed category
10 - 1.4.53 Structural belt
10 - 1.4.54 Topcapping
10 - 1.4.55 Tread
10 - 1.4.56 Tread pattern depth
10 - 1.4.57 Tread rubber
10 - 1.4.58 Tread separation
10 - 1.4.59 Tread wear indicator
10 - 1.4.60 Tubeless tyre
11 - 1.4.61 Undertread
11 - 1.4.62 Venting
11 - 1.4.63 Winter tread
13 - SECTION 2 INITIAL INSPECTION OF TYRES
13 - 2.1 GENERAL
13 - 2.2 INSPECTION OF TYRES BEFORE RETREADING OR REPAIR
13 - 2.3 SPEED LIMITED TYRES
14 - SECTION 3 RETREADING
14 - 3.1 GENERAL
14 - 3.1.1 Use of materials
14 - 3.1.2 Buffing
14 - 3.1.3 Inspection after buffing
14 - 3.1.4 Buffing damage
14 - 3.1.5 Rebelting of radial ply truck / bus tyres
14 - 3.1.6 Repairs
15 - 3.1.7 Cementing
15 - 3.1.8 Building
15 - 3.1.9 Curing
15 - 3.1.10 Radial ply tread patterns on diagonal ply passenger car tyres
16 - 3.1.11 Venting
16 - 3.1.12 Inspection after curing
16 - 3.1.13 Final inspection
16 - 3.2 DIMENSIONAL AND PHYSICAL REQUIREMENTS
16 - 3.2.1 Rubber under the tread pattern
16 - 3.2.2 Tread wear indicators
16 - 3.2.3 Balance
16 - 3.3 ADHESION REQUIREMENT
16 - 3.4 SPEED CATEGORIES FOR RETREADED TYRES
17 - SECTION 4 REPAIR TECHNIQUES
17 - 4.1 ENVIRONMENTAL CONDITIONS
17 - 4.2 REPAIR MATERIALS
17 - 4.3 REPAIR PRINCIPLES
17 - 4.3.1 General principles
18 - 4.3.2 Preparation of damage for repairing
18 - 4.3.3 Minor repair principles
18 - 4.3.4 Major repair principles
18 - 4.4 MEASUREMENT OF DAMAGE
18 - 4.4.1 General
18 - 4.4.2 Diagonal ply tyres
18 - 4.4.3 Radial ply tyres-Crown and shoulder damage
18 - 4.4.4 Radial ply tyres-Sidewall damage
18 - 4.5 CURING
18 - 4.5.1 General
19 - 4.5.2 Hot-curing
19 - 4.5.3 Cold curing (chemical)
20 - 4.6 INSPECTION AFTER CURING
20 - 4.6.1 Visual inspection of repair
20 - 4.6.2 Inspection of repair marking
21 - SECTION 5 REPAIR LIMITS FOR PASSENGER CAR TYRES
21 - 5.1 GENERAL
21 - 5.2 PASSENGER CAR TYRE REPAIR CLASSIFICATION
21 - 5.2.1 Minor repairs
21 - 5.2.2 Major repairs
21 - 5.3 IRREPARABLE DAMAGE
21 - 5.4 REPAIR LIMITS
23 - SECTION 6 REPAIR LIMITS FOR LIGHT TRUCK TYRES
23 - 6.1 GENERAL
23 - 6.2 LIGHT TRUCK TYRE REPAIR CLASSIFICATIONS
23 - 6.2.1 Minor repairs
23 - 6.2.2 Major repairs
23 - 6.3 IRREPARABLE DAMAGE
23 - 6.4 REPAIR LIMITS
26 - SECTION 7 REPAIR LIMITS FOR RADIAL PLY TRUCK/BUS TYRES
26 - 7.1 GENERAL
26 - 7.2 RADIAL PLY TRUCK/BUS TYRE REPAIR CLASSIFICATIONS
26 - 7.2.1 Minor repairs
26 - 7.2.2 Major repairs
26 - 7.3 IRREPARABLE DAMAGE
26 - 7.4 REPAIR LIMITS
28 - SECTION 8 REPAIR LIMITS FOR DIAGONAL PLY TRUCK/BUS TYRES
28 - 8.1 GENERAL
28 - 8.2 DIAGONAL PLY TRUCK/BUS TYRE REPAIR CLASSIFICATIONS
28 - 8.2.1 Minor repairs
28 - 8.2.2 Major repairs
28 - 8.3 IRREPARABLE DAMAGE
28 - 8.4 REPAIR LIMITS
29 - SECTION 9 MARKING
29 - 9.1 MARKING OF RETREADED TYRES
29 - 9.1.1 Marking on one side
29 - 9.1.2 Marking on both sides
30 - 9.1.3 Method and position of marking
30 - 9.1.4 Sidewall marking of asymmetric tyres
30 - 9.1.5 Removal of marking
30 - 9.1.6 Identification of the number of retreads
30 - 9.2 MARKING OF REPAIRED TYRES
31 - APPENDIX A - ADHESION TEST FOR NEW TREAD RUBBER ONTO THE TYRE CARCASS
31 - A1 SCOPE
31 - A2 PRINCIPLE
31 - A3 APPARATUS
31 - A4 TEST SPECIMENS
32 - A5 PRECONDITIONING
32 - A6 TEST CONDITIONS
32 - A7 PROCEDURE
35 - A8 REPORT

Sets out a Code of Practice for the retreading of pneumatic diagonal and radial ply tyres including requirements for initial inspection, processing, marking and final inspection. Also sets out requirements for in-service repairs to tyres and repairs made in conjunction with the retreading process.

This Standard sets out a code of practice for the retreading of pneumatic diagonal and radial ply tyres, including requirements for initial inspection, processing, marking and final inspection. It also sets out requirements for in-service repairs to tyres and repairs made in conjunction with the retreading process.NOTES:1 It is a fundamental requirement of this Standard that all retreaded tyres be marked to identify the retreader, and that all repairs be identified and marked by the repairer (which may be a retreader where the tyre is repaired concurrently with retreading) (see Section 9).2 Temporary repairs including the use of externally applied plugs or liquid puncture sealants are not included in this Standard.This Standard is intended to be used by repairers and retreaders of passenger car, light truck, and truck/bus tyres intended primarily for on-road use (see Note). Unless otherwise specified, the requirements apply to both tube type and tubeless tyres but do not permit major repairs in passenger car tyres of speed category 'V', or higher. This Standard does not apply to pneumatic tyres or tyre/wheel assemblies of the 'limited-run-flat' type, the temporary spare, or moped and motorcycle tyres, or to tyres designed primarily for earthmoving, agricultural, industrial, or aviation application.NOTE: The tyres covered by this Standard are those listed in The Tyre and Rim Association of Australia Standards Manual (Passenger, Truck/Bus Section), or in the equivalent sections of the following documents of overseas organizations:(a) The Tyre and Rim Association, Year Book.(b) The Japan Automobile Tyre Manufacturers Association, Year Book.(c) The European Tyre and Rim Technical Organization, Standards Manual.

Committee
ME/56
DevelopmentNote
Standard has been given Pending Revision status.
DocumentType
Standard
ISBN
0 7262 8519 6
Pages
29
ProductNote
Pending Revision indicates that as a result of the Aged Standards review process, the document needs updating. If no project proposal, meeting the quality criteria, is received within the 12 month timeframe, the document shall be withdrawn.
PublisherName
Standards Australia
Status
Current
Supersedes

First published as AS 1973-1976.Second edition 1985.Third edition 1993. First published as AS 1973-1976. Second edition 1985. Third edition 1993.

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