IEC 61029-2-4:1993/AMD1:2001

Amendment 1 - Safety of transportable motor-operated electric tools - Part 2-4: Particular requirements for bench grinders

General Information

• Status: Published
• Publication Date: 17-May-2001
• ICS: 01 - GENERALITIES. TERMINOLOGY. STANDARDIZATION. DOCUMENTATION
• ICS: 25.080.50 - Grinding and polishing machines
• ICS: 25.140.20 - Electric tools
• Technical Committee: TC 116 - Safety of motor-operated electric tools
• Drafting Committee: WG 9 - TC 116/WG 9
• Current Stage: PPUB - Publication issued
• Start Date: 30-Jun-2001
• Completion Date: 18-May-2001

Standards Content (Sample)

INTERNATIONAL IEC
STANDARD
61029-2-4
AMENDMENT 1
2001-05
Amendment 1
Safety of transportable motor-operated electric
tools –
Part 2-4:
Particular requirements for bench grinders
Amendement 1
Sécurité des machines-outils électriques semi-fixes –
Partie 2-4:
Règles particulières pour les tourets à meuler
 IEC 2001  Copyright - all rights reserved
International Electrotechnical Commission 3, rue de Varembé Geneva, Switzerland
Telefax: [phone] e-mail: [e-mail] IEC web site http://www.iec.ch
Commission Electrotechnique Internationale
PRICE CODE
J
International Electrotechnical Commission
For price, see current catalogue

– 2 – 61029-2-4 Amend. 1  IEC:2001(E)
FOREWORD
This amendment has been prepared by subcommittee 61F: Safety of hand-held motor-
operated electric tools, of IEC technical committee 61: Safety of household and similar
electrical appliances.
The text of this amendment is based on the following documents:
FDIS Report on voting
61F/371/FDIS 61F/386/RVD
Full information on the voting for the approval of this amendment can be found in the report
on voting indicated in the above table.
The committee has decided that the contents of the base publication and its amendments will
remain unchanged until 2006. At this date, the publication will be
reconfirmed;
withdrawn;
replaced by a revised edition, or
amended.
___________
Page 7
1 Scope
1.1 Modification:
Replace the first paragraph by the following:
This International Standard applies to transportable bench grinders (figure 101) and combined
bench grinders (figure 107) with a wheel diameter and brush diameter not exceeding 200 mm
and a peripheral speed not exceeding 50 m/s, as defined in 2.101 and 2.114.
Add figure 107 as follows:
61029-2-4 Amend. 1  IEC:2001(E) – 3 –
IEC  490/01
1 - straight-sided grinding wheel 7 - nozzle for dust
2 - brush 8 - on/off device
3 - flange 9 - handle
4 - work rest 10 - spark arrestor
5 - transparent screen 11 - cup shaft guard
6 - guard for straight-sided wheel 12 - marking plate
Figure 107 – Combined bench grinder
NOTE The drawings are given as a guide only.
2 Definitions
Replace definitions 2.103, 2.104 and 2.112 as follows:
2.103
machine spindle
motor spindle of the bench grinder or of the combined bench grinder which supports and
transmits the rotation to the grinding wheels or to the grinding wheel and/or the brush
2.104
nozzle for dust collection
device allowing the connection of a bench grinder or a combined bench grinder to a dust
collection system
2.112
working speed
linear peripheral speed of the wheel or of the brush while working
Add the following definition:
2.114
combined bench grinder
tool designed to grind metal or similar materials or to clean, polish or deburr metal or similar
materials by means of an abrasive wheel and a brush fixed on opposite ends of the machine
spindle, and which is located in a proper workplace and where pieces are held by hand

– 4 – 61029-2-4 Amend. 1  IEC:2001(E)
Page 11
7 Marking
7.1 Addition:
Add the following items:
– for combined bench grinders, the maximum diameter D of the brush to be used;
– for combined bench grinders/brushes, a warning near to the brush holder spindle never to
use a grinding wheel on the brush side of the machine.
7.13  Addition:
Replace the first paragraph as follows:
The handbook or information sheet shall include all the necessary information for safe
working with the bench grinder or combined bench grinder, such as method of operation,
wheel and brush changing, maintenance, assembly, transportation, etc.
Replace the second dash as follows:
– do not use damaged or misshapen wheels or brushes;
Replace the sixth dash as follows:
– for bench grinders and combined bench grinders equipped with straight-sided flanges, the
recommended values of the thickness T and the diameter of the hole;
Add, before the note, the following additional dash:
– for combined bench grinders, to always keep the brush assembled on the spindle in order
to limit the risk of contact with the rotating spindle.
Page 15
18 Stability and mechanical hazards
Addition:
18.1
Replace the first paragraph as follows:
Bench grinders and combined bench grinders shall be equipped with an adequate guarding
system, which cannot be removed without the aid of a tool.
18.1.101 Guard
Change the heading of this subclause as follows:
18.1.101 Guard for wheel
Replace the first paragraph as follows:
Bench grinders and combined bench grinders shall be equipped with guards which leave
uncovered only a portion of the wheel as indicated in figure 102. Guards shall be designed to
have mechanical resistance to accidental breaking of the wheels.

61029-2-4 Amend. 1  IEC:2001(E) – 5 –
Page 23
18.1.101.3 Spark arrestor
Replace the first paragraph as follows:
Bench grinders and combined bench grinders equipped with straight-sided wheels shall have
a spark arrestor to limit the ejection of sparks and pieces of wheel from the wheel guard. Its
aim is also to improve the collection of dust.
18.1.101.4 Work rest
Replace the first paragraph as follows:
Bench grinders and combined bench grinders shall be equipped with work rests. This require-
ment does not apply to the brush side of the combined bench grinder.
Repla
...