IEC 60745-2-3:2006/AMD1:2010

IEC 60745-2-3 ®
Edition 2.0 2010-11
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
AMENDMENT 1
AMENDEMENT 1
Hand-held motor-operated electric tools – Safety –
Part 2-3: Particular requirements for grinders, polishers and disk-type sanders

Outils électroportatifs à moteur – Sécurité –
Partie 2-3: Règles particulières pour les meuleuses, lustreuses et ponceuses du
type à disque
IEC 60745-2-3:2006/A1:2010
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IEC 60745-2-3 ®
Edition 2.0 2010-11
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
AMENDMENT 1
AMENDEMENT 1
Hand-held motor-operated electric tools – Safety –
Part 2-3: Particular requirements for grinders, polishers and disk-type sanders

Outils électroportatifs à moteur – Sécurité –
Partie 2-3: Règles particulières pour les meuleuses, lustreuses et ponceuses du
type à disque
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
M
CODE PRIX
ISBN 978-2-88912-236-3
ICS 25.140.20
– 2 – 60745-2-3 Amend. 1 © IEC:2010
FOREWORD
This amendment has been prepared by IEC committee 116: Safety of hand-held motor-
operated electric tools.
The text of this amendment is based on the following documents:
FDIS Report on voting
116/53/FDIS 116/56/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.
This amendment modifies the present part 2-3 to ensure its conformity with the fourth edition
(2006) of IEC 60745-1, Hand-held motor-operated electric tools – Safety – Part 1: General
requirements.
The committee has decided that the contents of this amendment and the base publication will
remain unchanged until the stability date indicated on the IEC web site under
"http://webstore.iec.ch" in the data related to the specific publication. At this date, the
publication will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
The contents of the corrigendum of February 2011 have been included in this copy.

_____________
60745-2-3 Amend. 1 Ó IEC:2010 – 3 –
1 Scope
Replace the existing text of this clause by the following:
This clause of Part 1 is applicable, except as follows:
Addition:
This standard applies to grinders, polishers and disk-type sanders, including angle, straight
and vertical tools, with a rated capacity not exceeding 230 mm. For grinders, the rated speed
does not exceed a peripheral speed of the accessory of 80 m/s at rated capacity.
This standard does not apply to dedicated cut-off machines which are covered by
IEC 60745-2-22.
This standard does not apply to random-orbit polishers and random-orbit sanders which are
covered by IEC 60745-2-4.
3 Definitions
Replace the title of this clause by the following:
3 Terms and definitions
Replace the existing definition 3.108 by the following:
3.108
rated speed
maximum attainable speed as designated by the manufacturer, with any recommended
accessory installed, at rated voltage or at the upper limit of the rated voltage range
8 Marking and instructions
Replace the existing Subclause 8.1 by the following:
8.1 Addition:
Tools shall also be marked with:
– rated speed in revolutions per minute;
– rated capacity in mm;
– tools provided with a threaded spindle shall be marked with the spindle thread size;
– “ WARNING Always wear eye protection” or sign M004 of ISO 7010 or the following
safety sign:
The eye protection symbol may be modified by adding other personal protective
equipment such as ear protection, dust mask, etc.

– 4 – 60745-2-3 Amend. 1 Ó IEC:2010
Replace the existing Subclause 8.12.1 by the following:
8.12.1 Addition:
For the following safety instructions specified in 8.12.1.101 to 8.12.1.107, terms such as
grinding/grinder, sanding/sander, wire brushing/wire brush, polishing/polisher or cutting-
off/cut-off tool are selected as recommended by the manufacturer. These terms in the
warnings and headings shall be consistently used or deleted based on the selected
operations. The “and”/“or” conjunctions may be used as appropriate.
If the power tool is recommended only for one of the listed operations, the heading of that
section is to be used for all warnings.
8.12.1.101 Safety instructions for all operations
Add the following new note after the heading “Safety Warnings Common for Grinding, Sanding,
Wire Brushing, Polishing or Abrasive Cutting-Off Operations”:
NOTE In the above heading, those operations not applicable may be omitted.
Replace the existing items b) and j) in 8.12.1.101 by the following:
b) Operations such as grinding, sanding, wire brushing, polishing or cutting-off are not
recommended to be performed with this power tool. Operations for which the power
tool was not designed may create a hazard and cause personal injury.
NOTE List only those operations that were not included in the first warning. If all listed operations are
recommended, then this warning may be omitted, but all subsequent warnings are to be given without
exclusion.
j) Hold the power tool by insulated gripping surfaces only, when performing an
operation where the cutting accessory may contact hidden wiring or its own cord.
Cutting accessory contacting a "live" wire may make exposed metal parts of the power
tool "live" and could give the operator an electric shock.
NOTE The above warning may be omitted if polishing or sanding are the only recommended operations.
8.12.1.103 Additional safety instructions for grinding and cutting-off operations
Replace the existing item b) in 8.12.1.103 by the following:
b) The guard must be securely attached to the power tool and positioned for maximum
safety, so the least amount of wheel is exposed towards the operator. The guard
helps to protect the operator from broken wheel fragments, accidental contact with wheel
and sparks that could ignite clothing.
NOTE The above warning may be omitted for grinders or cut-off grinders with a rated capacity of less than
55 mm.
8.12.1.104  Additional safety instructions for cutting-off operations
Replace the existing item d) in 8.12.1.104 by the following:
d) Do not restart the cutting operation in the workpiece. Let the wheel reach full speed
and carefully re-enter the cut. The wheel may bind, walk up or kickback if the power tool
is restarted in the workpiece.
Replace the existing text of 8.12.2 a) by the following:
8.12.2 a) Addition:
101) Types of accessories in accordance with 8.12.1.101 a)

60745-2-3 Amend. 1 Ó IEC:2010 – 5 –
102) Thickness and diameter of grinding wheels
8.12.2 b) Replace the existing items 102), 103) and 104) by the following new items:
102) Mounting of accessories and use of the correct flanges, use and care of the abrasive
product. For reversible flanges, the correct method of fitting the flanges
103) Instruction to the operator on the use of all the different types of wheels specified in
the instructions in accordance with 8.12.2 a) 101), e.g. side grinding, peripheral
grinding
104) Instruction for the proper type of guard for the type of wheel being used
Add the following text after item 104) and renumber the subsequent items:
105) Instruction for the mounting and securing of the guard identifying allowable
adjustments to ensure maximum protection of the operator
Add the following additional subclause:
8.101 Tools shall also be marked with an indication of direction of rotation of the spindle.
This shall be indicated by an arrow, raised or sunk, or by any other means no less
visible and indelible.
18 Abnormal operation
Replace the existing Subclause 18.10 by the following:
18.10.4 Addition:
During these tests, the speed of the spindle shall not exceed 120 % of the rated speed. The
accessory in accordance with 8.12.2 a) 101) that results in the maximum speed shall be
installed.
19 Mechanical hazards
Replace the existing Subclauses 19.101, 19.102, 19.103 and 19.104 by the following:
19.101 Grinders with a rated capacity exceeding 55 mm shall be provided with a wheel
guard to protect the user during normal use against:
– accidental contact with the abrasive product;
– ejection of fragments of the abrasive product;
– sparks and other debris.
The wheel guard (hereafter referred to as a guard) may be removable either with the aid of a
tool or by fulfilling the following requirements:
– two separate and dissimilar actions shall be required to remove the guard, e.g. pushing a
lever and turning the guard;
– for removal, the guard shall be turned to a position that does not occur in normal
operation.
The guard shall fulfil the following requirements:
– be designed so that, in case of a wheel burst, the guard shall reduce the risk of injury to
the operator and remain attached to the grinder by effective and secure means and
comply with the test of 20.101;
– to change the abrasive wheel, it shall not be necessary to remove the guard from the tool;

– 6 – 60745-2-3 Amend. 1 Ó IEC:2010
– be designed so that the risk of an accidental contact between the operator and the wheel
during normal use is minimized e.g. by a possibility of adjustment.
To prevent the installation of an oversized wheel, the clearance between the inside of the
guard and the periphery of a new abrasive product in accordance with 8.12.2 a) 101) shall in
at least one location be 8 mm maximum for tools with a rated capacity not exceeding 130 mm
and 10 mm maximum for tools with a rated capacity exceeding 130 mm.
For wheel Type 1 (grinding wheels) and wheel Types 41 and 42 (cutting-off wheels), the
guard shall cover at least 175° of the abrasive wheel periphery and both sides of the wheel.
The front curtain shall be designed to facilitate easy replacement of the wheel. Enclosure of
the spindle end, nut and the locking flange is not required. See Figure 101.
For wheel Types 27, 28 and 29, the guard shall cover at least 175° of the abrasive wheel
periphery and shall have a front lip of at least 3 mm from th
...