AS 1788.2-1987

1 - AS 1788.2-1987 ABRASIVE WHEELS - SELECTION, CARE, AND USE
4 - PREFACE
4 - CONTENTS
5 - SECTION 1. SCOPE AND GENERAL
5 - 1.1 SCOPE.
5 - 1.2 APPLICATION.
5 - 1.3 RELATIONSHIP WITH REGULATIONS
5 - 1.4 INTERPRETATIONS.
5 - 1.5 REFERENCED DOCUMENTS.
5 - 1.6 DEFINITIONS.
5 - 1.6.1 Abrasive wheel
5 - 1.6.2 Accompanying documents
5 - 1.6.3 Blotters
5 - 1.6.4 Bonded wheel.
5 - 1.6.5 Chuck
5 - 1.6.6 Exhaust zone
5 - 1.6.7 Flanges
5 - 1.6.8 Grinding-face
6 - 1.6.9 Grinding operations.
8 - 1.6.10 Guard
8 - 1.6.11 Maximum operating speed
8 - 1.6.12 Peripheral speed
8 - 1.6.13 Reducing bush
8 - 1.6.14 Regulating wheel
8 - 1.6.15 Regulatory Authority
8 - 1.6.16 Rotational frequency
8 - 1.6.17 Segments
8 - 1.6.18 Shall and should
8 - 1.7 WHEEL SHAPE APPLICATION.
8 - 1.7.1 Straight wheel, Type 1.
8 - 1.7.2 Cylinder wheel, Type 2.
8 - 1.7.3 Abrasive disc.
8 - 1.7.4 Taper-sided wheel, Type 4.
8 - 1.7.5 Recessed-one-side wheel, Type 5.
8 - 1.7.6 Straight cup wheel, Type 6.
8 - 1.7.7 Double recessed wheel, Type 7.
8 - 1.7.8 Flaring cup wheel, Type 11.
9 - 1.7.9 Dish wheel, Type 12
9 - 1.7.10 Saucer wheels, Type 13
9 - 1.7.11 Cone and plug wheels, Types 16, 17, 18, 18R
9 - 1.7.12 Relieved and/or recessed wheels, Types 20, 21, 22, 23, 24, 25, and 26.
9 - 1.7.13 Depressed centre wheels, Types 27 and 28.
9 - 1.7.14 Cutting off wheels.
9 - 1.7.15 Coping wheels.
9 - 1.7.16 Tuck pointing wheels.
9 - 1.7.17 Notching wheels.
9 - 1.7.18 Mounted wheels.
10 - SECTION 2. MACHINE AND WHEEL OPERATION
10 - 2.1 POWER.
10 - 2.2 EXHAUST PROVISION.
10 - 2.3 MOUNTING.
10 - 2.3.1 Inspection.
10 - 2.3.2 Arbor size.
10 - 2.3.3 Surface condition.
10 - 2.3.4 Bushing.
10 - 2.3.5 Blotters.
10 - 2.3.6 Flanges.
11 - 2.3.7 Multiple wheel mounting.
11 - 2.3.8 Tightening of wheel mounting.
11 - 2.3.9 Direction and length of threadon machine spindle.
11 - 2.3.10 Threaded hole wheels.
11 - 2.3.11 Mounting of abrasive discs (inserted nut and inserted washer types)
13 - 2.3.12 Mounting of plate-mounted type wheels.
13 - 2.3.13 Guards.
14 - 2.3.14 Mounted wheel speeds and work pressure.
14 - 2.3.15 Type 27and Type 28 wheels.
14 - 2.3.16 Type 2 cylinder wheels.
14 - 2.3.17 Segmental wheels
16 - SECTION 3. OPERATIONAL SPEEDS
16 - 3.1 STANDARD SPEEDS.
16 - 3.1.1 General.
16 - 3.1.2 Speed check of machines.
16 - 3.1.3 Speed adjustment control.
16 - 3.2 SPECIAL SPEEDS.
16 - 3.2.1 Requirements for special speeds.
16 - 3.2.2 User’s responsibility.
17 - SECTION 4. SPECIFIC REQUIREMENTS FOR OPERATION
17 - 4.1 GENERAL OPERATION.
17 - 4.1.1 Responsibility.
17 - 4.1.2 Investigation after breakage.
17 - 4.1.3 Replacing guard.
17 - 4.1.4 Starting the wheel.
17 - 4.1.5 Balance.
17 - 4.1.6 Truing and dressing.
17 - 4.1.7 Wet grinding
17 - 4.1.8 Side grinding.
17 - 4.1.9 Lubrication.
17 - 4.1.10 Check for wear.
17 - 4.1.11 Work rests.
17 - 4.1.12 Large hole inorganic-vitrified-bonded wheels.
17 - 4.2 PERSONAL SAFETY REQUIREMENTS.
17 - 4.2.1 General.
17 - 4.2.2 Eye protection.
17 - 4.2.3 Protective clothing.
18 - 4.2.4 Dust protection.
18 - 4.2.5 Hearing protection.
18 - 4.2.6 Barriers.
18 - 4.2.7 Dust exhaust systems.
18 - 4.2.8 Floors.
20 - SECTION 5. HANDLING, STORAGE, AND INSPECTION
20 - 5.1 HANDLING.
20 - 5.2 STORAGE.
21 - 5.3 INSPECTION.
20 - 5.2.1 General.
21 - 5.2.2 Shelf life of organic bonded wheels (resinoid, rubber, and shellac).
21 - 5.2.3 Shelf life of inorganic bonded wheels (vitrified, silicate, and magnesite)
23 - APPENDIX A - SAMPLE REPORT FORM FOR ABRASIVE WHEEL BREAKAGES
28 - APPENDIX B - SPEED CONVERSION TABLE

Specifies requirements for the application and operation of abrasive wheels. Includes sections covering the storage, handling and mounting of abrasive wheels in addition to the conditions under which special operating speeds may be used. A model report form for abrasive wheel breakages is given in an appendix.

This standard sets out requirements for the application and operation of abrasive wheels (excluding natural sandstones). Requirements for the proper storage, handling, and mounting of abrasive wheels are also included.The operating requirements included in this standard are limited to important safety requirements. Requirements for the manufacture and installation of abrasive wheels and ancillary equipment are specified in AS 1788.1.