Bsi bs en 60745 2 22 2011 + a11 2013

HAND-HELD MOTOR-OPERATED ELECTRIC TOOLS – SAFETY – Part 2-22: Particular requirements for cut-off machines 1 Scope This clause of Part 1 is applicable as follows: Addition: This stand

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BSI Standards Publication

Hand-held motor-operated electric tools — Safety

Part 2-22: Particular requirements for cut-off machines

BS EN 60745-2-22:2011+A11:2013

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BS EN 60745-2-22:2011+A11:2013 BRITISH STANDARD

National foreword

This British Standard is the UK implementation of

EN 60745-2-22:2011+A11:2013 It is derived from IEC 60745-2-22:2011

It supersedes BS EN 60745-2-22:2011, which will be withdrawn on

by  tags

The UK participation in its preparation was entrusted by Technical Committee CPL/116, Safety of motor-operated electric tools, to Subcommittee CPL/116/2, Safety of electric motor-operated hand-held tools

A list of organizations represented on this subcommittee can be obtained on request to its secretary

This publication does not purport to include all the necessary provisions of a contract Users are responsible for its correct application

Published by BSI Standards Limited 2013ISBN 978 0 580 76933 7

Amendments/corrigenda issued since publication

Date Text affected

31 May 2013 Implementation of CENELEC amendment A11:2013

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Management Centre: Avenue Marnix 17, B - 1000 Brussels

Ref No EN 60745-2-22:2011 E

ICS 25.140.20

English version

Hand-held motor-operated electric tools -

Safety - Part 2-22: Particular requirements for cut-off machines

Sicherheit - Teil 2-22: Besondere Anforderungen für Trennschleifmaschinen

(IEC 60745-2-22:2011, modifiziert)

This European Standard was approved by CENELEC on 2011-04-18 CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration

Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the Central Secretariat or to any CENELEC member

This European Standard exists in three official versions (English, French, German) A version in any other language made by translation under the responsibility of a CENELEC member into its own language and notified to the Central Secretariat has the same status as the official versions

CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom

EN 60745-2-22:2011+A11

January 2013

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Foreword

The text of document 116/57/FDIS, future edition 1 of IEC 60745-2-22, prepared by IEC TC 116, Safety of

hand-held motor-operated electric tools, was submitted to the IEC-CENELEC parallel vote

A draft amendment, prepared by the Technical Committee CENELEC TC 116, Safety of motor-operated

electric tools, was submitted to the formal vote

The combined texts were approved by CENELEC as EN 60745-2-22 on 2011-04-18

The following dates were fixed:

– latest date by which the EN has to be implemented

at national level by publication of an identical

national standard or by endorsement (dop) 2012-04-18

– latest date by which the national standards conflicting

with the EN have to be withdrawn (dow) 2014-04-18

This European Standard is divided into two parts

Part 1: General requirements which are common to most hand-held electric motor operated tools (for the

purpose of this standard referred to simply as tools) which could come within the scope of this

standard;

Part 2: Requirements for particular types of tools which either supplement or modify the requirements

given in Part 1 to account for the particular hazards and characteristics of these specific tools

This draft European Standard has been prepared under a mandate given to CENELEC by the European

Commission and the European Free Trade Association and covers essential requirements of EC Directive

2006/42/EC See Annex ZZ

Compliance with the clauses of Part 1 together with this Part 2-22 provides one means of conforming with

the essential health and safety requirements of the Directive concerned

Warning: Other requirements and other EC Directives can be applicable to the products falling within

the scope of this standard

This European Standard follows the overall requirements of EN ISO 12100-1 and EN ISO 12100-2

This Part 2-22 is to be used in conjunction with EN 60745-1:2009 When this standard states "addition",

"modification" or "replacement", the relevant text in Part 1 is to be adapted accordingly

Subclauses and figures which are additional to those in Part 1 are numbered starting from 101; additional

annexes are lettered AA, BB, etc

Subclauses, tables and figures which are additional to those in IEC 60745-2-22 are prefixed “Z”

Annexes ZA and ZZ have been added by CENELEC

NOTE In this standard, the following print types are used:

- Requirements: in roman type;

- Test specification: in italic type;

- Notes: in smaller roman type

motor-The following dates are fixed:

• latest date by which this document has to be implemented

at national level by publication of an identical national standard or by endorsement

(dop) 2013-12-17

• latest date by which the national standards conflicting with this document have to be withdrawn (dow) 2015-12-17 Clauses, subclauses, notes, tables, figures and annexes which are additional to those in IEC 60745-2-22:2011 are prefixed “Z”

This document has been prepared under a mandate given to CENELEC by the European Commission and the European Free Trade Association and supports Essential Requirements of

EU Directive 2006/42/EC

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Endorsement notice

The text of the International Standard IEC 60745-2-22:2011 was approved by CENELEC as a European Standard with agreed common modifications

In the official version, for Bibliography, the following notes have to be added for the standards indicated:

IEC 60745-2-3 NOTE Harmonized as EN 60745-2-3

IEC 60745-2-5 NOTE Harmonized as EN 60745-2-5

motor-The following dates are fixed:

• latest date by which this document has to be implemented

at national level by publication of an identical national

standard or by endorsement

(dop) 2013-12-17

• latest date by which the national standards conflicting with

this document have to be withdrawn (dow) 2015-12-17

Clauses, subclauses, notes, tables, figures and annexes which are additional to those in IEC 60745-2-22:2011 are prefixed “Z”

This document has been prepared under a mandate given to CENELEC by the European Commission and the European Free Trade Association and supports Essential Requirements of

EU Directive 2006/42/EC

Foreword to amendment 11

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Annex ZA

(normative)

Normative references to international publications with their corresponding European publications

Addition:

EN 1339 2003 Concrete paving flags -

ISO 603-15 1999 Bonded abrasive products - Dimensions -

Part 15: Grinding wheels for cutting-off on stationary or mobile cutting-off machines

ISO 603-16 1999 Bonded abrasive produtcs - Dimensions -

Part 16: Grinding wheels for cutting-off on hand held power tools

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Annex ZZ

(informative)

Coverage of Essential Requirements of EC Directives

This European Standard has been prepared under a mandate given to CENELEC by the European Commission and the European Free Trade Association and within its scope the standard covers all relevant essential requirements as given in EC Directive 2006/42/EC (Machinery Directive)

Compliance with this standard provides one means of conformity with the specified essential requirements

of the Directives concerned

WARNING: Other requirements and other EC Directives may be applicable to the products falling within the scope of this standard

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CONTENTS

1 Scope 8

2 Normative references 8

3 Terms and definitions 8

4 General requirements 9

5 10 6 10

7 Classification 12

8 Marking and instructions 12

9 Protection against access to live parts 15

10 Starting 15

11 Input and current 16

12 Heating 16

13 Leakage current 16

14 Moisture resistance 16

15 Electric strength 16

16 Overload protection of transformers and associated circuits 16

17 Endurance 16

18 Abnormal operation 16

19 Mechanical hazards 16

20 Mechanical strength 20

21 Construction 22

22 Internal wiring 22

23 Components 23

24 Supply connection and external flexible cords 23

25 Terminals for external conductors 23

26 Provision for earthing 23

27 Screws and connections 23

28 Creepage distances, clearances and distances through insulation 23

29 Resistance to heat, fire and tracking 23

30 Resistance to rusting 23

31 Radiation, toxicity and similar hazards 23

Annexes 30

Annex K (normative) Battery tools and battery packs 30

Annex L (normative) Battery tools and battery packs provided with mains connection or non-isolated sources 30

Bibliography 31

Figure 101 – Examples of gaps and rake angles 24

Figure 102 – Typical guard designs 265 Figure 103 – Principal dimensions of flanges 266 Figure 104 – Guard strength test: explanation of guard positions 266 BS EN 60745-2-22:2011 EN 60745-2-22:2011 (E) Environmental requirements – 6 – General conditions for the tests

30 30

BS EN 60745-2-22:2011+A11:2013

10 10 10 14 15 18 18 18 18 18 18 19 19 19 19 19 22 24 25 25 25 25 25 25 26 26 26 26 36 36 36 37

27 28 29 29

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CONTENTS

1 Scope 8

2 Normative references 8

3 Terms and definitions 8

4 General requirements 9

5 10 6 10

7 Classification 12

8 Marking and instructions 12

9 Protection against access to live parts 15

10 Starting 15

11 Input and current 16

12 Heating 16

13 Leakage current 16

14 Moisture resistance 16

15 Electric strength 16

16 Overload protection of transformers and associated circuits 16

17 Endurance 16

18 Abnormal operation 16

19 Mechanical hazards 16

20 Mechanical strength 20

21 Construction 22

22 Internal wiring 22

23 Components 23

24 Supply connection and external flexible cords 23

25 Terminals for external conductors 23

26 Provision for earthing 23

27 Screws and connections 23

28 Creepage distances, clearances and distances through insulation 23

29 Resistance to heat, fire and tracking 23

30 Resistance to rusting 23

31 Radiation, toxicity and similar hazards 23

Annexes 30

Annex K (normative) Battery tools and battery packs 30

Annex L (normative) Battery tools and battery packs provided with mains connection or non-isolated sources 30

Bibliography 31

Figure 101 – Examples of gaps and rake angles 24

Figure 102 – Typical guard designs 265 Figure 103 – Principal dimensions of flanges 266 Figure 104 – Guard strength test: explanation of guard positions 266 BS EN 60745-2-22:2011 EN 60745-2-22:2011 (E) Environmental requirements – 6 – General conditions for the tests

30 30

BS EN 60745-2-22:2011+A11:2013

EN 60745-2-22:2011+A11:2013 (E)

– 7 –

Figure 105 – Guard strength test: preparation of the cut-off machine ��30 Figure 106 – Guard strength test box ��30 Figure Z101 – Positions of transducers for various kinds of cut-off-machines ��31 Figure Z102 – Noise and vibration test set up for cut-off machines (side view) ��32 Figure Z103 – Noise and vibration test set up for cut-off machines (top view) ��33 Figure Z104 – Noise test set-up for wall chasers (side view) ��34 Figure Z105 – Vibration test set-up for wall chasers (side view) ��35

Table Z101 – Noise and vibrations test conditions for cut-off machines ��11 Table Z102 – Noise test conditions for wall chasers��12 Table Z103 — Concrete formulation (per cubic metre)��12 Table Z104 — Categories of wall chasers according to the cutting depth of the tool ��13 Table 101 – Torques for testing flanges ��22 Table 102 – Guard thickness for diamond wheels ��23

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HAND-HELD MOTOR-OPERATED ELECTRIC TOOLS –

SAFETY – Part 2-22: Particular requirements for cut-off machines

1 Scope

This clause of Part 1 is applicable as follows:

Addition:

This standard applies to cut-off machines fitted with

– one bonded reinforced wheel of Type 41 or Type 42, or

– one or more diamond cut-off wheels with the peripheral gaps, if any, not exceeding

10 mm

and with

– a rated speed not exceeding a peripheral speed of the wheel of 100 m/s at rated capacity and

– a rated wheel capacity range of 55 mm to 410 mm

These machines are intended to cut materials such as metals, concrete, masonry, glass and tile

This standard does not apply to:

– grinders, sanders, or polishers, even if they can be converted to a cut-off machine, which

are covered by IEC 60745-2-3;

– circular saws which are covered by IEC 60745-2-5

3 Terms and definitions

This clause of Part 1 is applicable, except as follows:

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HAND-HELD MOTOR-OPERATED ELECTRIC TOOLS –

SAFETY – Part 2-22: Particular requirements for cut-off machines

1 Scope

This clause of Part 1 is applicable as follows:

Addition:

This standard applies to cut-off machines fitted with

– one bonded reinforced wheel of Type 41 or Type 42, or

– one or more diamond cut-off wheels with the peripheral gaps, if any, not exceeding

10 mm

and with

– a rated speed not exceeding a peripheral speed of the wheel of 100 m/s at rated

capacity and

– a rated wheel capacity range of 55 mm to 410 mm

These machines are intended to cut materials such as metals, concrete, masonry, glass and

tile

This standard does not apply to:

– grinders, sanders, or polishers, even if they can be converted to a cut-off machine, which

are covered by IEC 60745-2-3;

– circular saws which are covered by IEC 60745-2-5

2 Normative references

This clause of Part 1 is applicable except as follows:

Addition:

ISO 603-15:1999, Bonded abrasive products – Dimensions – Part 15: Grinding wheels for

cutting-off on stationary or mobile cutting-off machines

ISO 603-16:1999, Bonded abrasive products – Dimensions – Part 16: Grinding wheels for

cutting-off on hand-held power tools

3 Terms and definitions

collar, disc, or plate between or against which wheels are mounted

3.102.1 flange outside diameter

outside diameter of the contact surface of a flange 3.102.2

backing flange

part that contacts and provides support to the back side of the wheel and is located on the spindle between wheel and tool

3.102.3 locking flange

part that supports the front side of the wheel and secures and clamps the wheel to the spindle and the backing flange

3.103 cut-off machine

tool driving a rotating spindle, with a guide plate or guide roller or similar means, on which a bonded reinforced wheel or diamond wheel is mounted and used for peripheral grinding 3.104

rated capacity

maximum intended diameter of the rotating accessory to be fitted on the tool as recommended

by the manufacturer’s instruction

3.105 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

3.106 wheel guard

device which partly encloses the wheel and gives protection to the operator

3.107 guide plate

flat plate on the machine which rests on the material to be cut

3.108 guide roller

roller on the machine which rests on the material to be cut

3.109 bonded reinforced wheel

wheels for different applications in accordance with ISO 603-15 and ISO 603-16

3.110 diamond wheel

metal wheels with a continuous or segmented abrasive rim

tool driving a rotating spindle, with a guide plate or guide roller or similar means, on which

one or more diamond wheels are mounted and used for non-through cutting operations by

peripheral grinding

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6 Environmental requirements

This clause of Part 1 is applicable except as follows:

6.1.2.4 Modification:

Cut-off machines are held and used as specified in 6.1.2.5 and described in Table Z101 The concrete

block, its support and the tool shall be so oriented that the geometric centre of the tool is 1 m above the

reflecting plane (dimension “y” in Figure Z102) The centre of the concrete block shall be located under

the top microphone

Cut-off machines are tested under load observing the conditions shown in Table Z101

5 General conditions for the tests

This clause of Part 1 is applicable

flange outside diameter

outside diameter of the contact surface of a flange

3.102.2

backing flange

part that contacts and provides support to the back side of the wheel and is located on the

spindle between wheel and tool

3.102.3

locking flange

part that supports the front side of the wheel and secures and clamps the wheel to the spindle

and the backing flange

3.103

cut-off machine

tool driving a rotating spindle, with a guide plate or guide roller or similar means, on which a

bonded reinforced wheel or diamond wheel is mounted and used for peripheral grinding

3.104

rated capacity

3.105

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

bonded reinforced wheel

up Concrete slab with minimum dimensions of 400 mm x 600 mm and a thickness of (50 ± 5) mm according to EN 1339 The concrete slab shall be stored under dry

conditions for at least 28 days and have the following specifications in accordance with the following clauses of EN 1339:

Class 3 (5.3.3.2), Class 4 (5.3.4.2), Class 70 (5.3.6.2)

The concrete slab is rigidly fixed on a supporting concrete block with the minimum dimensions of 800 mm x 500 mm x 200 mm

At the beginning of the test the end of the concrete slab shall project 200 mm from the concrete block and shall be readjusted at least after each series of tests

Unless the machine is intended for operation with water supply, the dust shall be collected during operation using a vacuum system This shall be in place and fitted correctly The hose for dust extraction shall be connected and have adequate length

to eliminate the influence of the noise and vibration from the vacuum system on the tool measurements

See Figures Z102 and Z103

Orientation Cut the concrete slab across the 400 mm width During cutting the entire surface of

the guide plate or all guide rollers shall be in contact with the concrete slab

The cut shall not be less than 20 mm from the edge of the slab

Tool bit/settings New wheel(s) as specified for cutting concrete at the beginning of the entire test, to

be used by all three operators

Speed setting devices, if any, shall be adjusted to the setting specified for cutting-off concrete

The depth gauge, if any, shall be adjusted to a cutting depth equal to the thickness

of the slab(s) plus 40 mm

If no depth gauge is provided, the cut shall be made with a cutting depth of the slab(s) plus approximately 10 mm to 40 mm

If the maximum cutting depth of the cut-off machine is less than the values above, the test is conducted at maximum cutting depth

Feed force The forces applied to the tool shall be sufficient to obtain rated input/current ± 10 %

during cutting, applying approximately equal forces to both handles

If either the input/current above cannot be achieved or the test cycle is less than

15 s, the test shall be conducted on two slabs stacked together

Excessive grip forces shall be avoided

Test cycle One cut across the 400 mm width of the concrete slab

The noise is measured during 15 s when the tool is in the middle of the concrete slab

For vibration, the measurement starts when the wheel enters the concrete slab and finishes when the wheel leaves the slab

BS EN 60745-2-22:2011+A11:2013

EN 60745-2-22:2011+A11:2013 (E) – 10 –

6.1.2.4 Modification:

Cut-off machines and wall chasers are held and used as specified in 6�1�2�5�

For cut-off machines and wall chasers, the concrete block, its support and the tool shall be so

arranged that the geometric centre of the tool is 1 m above the reflecting plane, see Figure Z102

(dimension “y”) and Figure Z104�

For cut-off machines, the centre of the 200 mm projecting end of the concrete slab shall be

located under the top microphone�

For wall chasers the centre of the concrete block shall be located under the top microphone�

Cut-off machines are tested under load observing the conditions shown in Table Z101� Wall

chasers are tested under load observing the conditions shown in Table Z102�



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3.102

flange

collar, disc, or plate between or against which wheels are mounted

3.102.1

flange outside diameter

outside diameter of the contact surface of a flange

3.102.2

backing flange

part that contacts and provides support to the back side of the wheel and is located on the

spindle between wheel and tool

3.102.3

locking flange

part that supports the front side of the wheel and secures and clamps the wheel to the spindle

and the backing flange

3.103

cut-off machine

tool driving a rotating spindle, with a guide plate or guide roller or similar means, on which a

bonded reinforced wheel or diamond wheel is mounted and used for peripheral grinding

3.104

rated capacity

3.105

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

bonded reinforced wheel

up Concrete slab with minimum dimensions of 400 mm x 600 mm and a thickness of (50 ± 5) mm according to EN 1339 The concrete slab shall be stored under dry

conditions for at least 28 days and have the following specifications in accordance with the following clauses of EN 1339:

Class 3 (5.3.3.2), Class 4 (5.3.4.2), Class 70 (5.3.6.2)

The concrete slab is rigidly fixed on a supporting concrete block with the minimum dimensions of 800 mm x 500 mm x 200 mm

At the beginning of the test the end of the concrete slab shall project 200 mm from the concrete block and shall be readjusted at least after each series of tests

Unless the machine is intended for operation with water supply, the dust shall be collected during operation using a vacuum system This shall be in place and fitted correctly The hose for dust extraction shall be connected and have adequate length

to eliminate the influence of the noise and vibration from the vacuum system on the tool measurements

See Figures Z102 and Z103

Orientation Cut the concrete slab across the 400 mm width During cutting the entire surface of

the guide plate or all guide rollers shall be in contact with the concrete slab

The cut shall not be less than 20 mm from the edge of the slab

Speed setting devices, if any, shall be adjusted to the setting specified for cutting-off concrete

The depth gauge, if any, shall be adjusted to a cutting depth equal to the thickness

of the slab(s) plus 40 mm

If no depth gauge is provided, the cut shall be made with a cutting depth of the slab(s) plus approximately 10 mm to 40 mm

If the maximum cutting depth of the cut-off machine is less than the values above, the test is conducted at maximum cutting depth

during cutting, applying approximately equal forces to both handles

If either the input/current above cannot be achieved or the test cycle is less than

15 s, the test shall be conducted on two slabs stacked together

Excessive grip forces shall be avoided

Test cycle One cut across the 400 mm width of the concrete slab

The noise is measured during 15 s when the tool is in the middle of the concrete slab

For vibration, the measurement starts when the wheel enters the concrete slab and finishes when the wheel leaves the slab

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– 5 – EN 60745-2-22:2011/A11:2013

Table Z102 — Noise test conditions for wall chasers Material and set

up Concrete block according to Table Z103 with the minimum dimensions of 800 mm x 500 mm x 200 mm fixed rigidly in a horizontal position on a ground

support (e.g by means of clamps), see Figure Z104 The ground support shall be large and solid enough to carry the test block and to ensure the stability of the workpiece fixed to it during the test

The smooth side of the concrete block shall be oriented to the top

The dust shall be collected during operation using a vacuum system This shall be

in place and fitted correctly The hose for dust extraction shall be connected and have adequate length to eliminate the influence of the noise from the vacuum system on the tool measurements

Orientation Cut horizontal slots across the 500 mm width of the concrete block’s top surface

During cutting the entire surface of the guide plate or all guide rollers shall be in contact with the surface

The cuts shall be conducted in the central area of the concrete block

Cutting in an existing slot shall be avoided

The width and depth setting of the tool shall be according to Table Z104

Speed setting devices, if any, shall be adjusted as specified for chasing concrete

during cutting, applying approximately equal forces to both handles Excessive grip forces shall be avoided

Test cycle One horizontal cut across the 500 mm width of the concrete block

Measurement is taken during 15 s when the tool is in the middle of the block

Table Z103 — Concrete formulation (per cubic metre)

1 844 kg Particle size Fraction

a Very hard aggregates such as flint or granite and very soft aggregates such as limestone shall

not be used

b The water/cement mass ratio shall be 0,55 ± 0,02 (the mass tolerance of cement and water is

+ 10 % to enable the concrete manufacturer to ensure compressive strength with local cement)

BS EN 60745-2-22:2011+A11:2013

EN 60745-2-22:2011+A11:2013 (E) – 12 –





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– 5 – EN 60745-2-22:2011/A11:2013

Table Z102 — Noise test conditions for wall chasers Material and set

up Concrete block according to Table Z103 with the minimum dimensions of 800 mm x 500 mm x 200 mm fixed rigidly in a horizontal position on a ground

support (e.g by means of clamps), see Figure Z104 The ground support shall be large and solid enough to carry the test block and to ensure the stability of the

workpiece fixed to it during the test

The smooth side of the concrete block shall be oriented to the top

in place and fitted correctly The hose for dust extraction shall be connected and have adequate length to eliminate the influence of the noise from the vacuum

system on the tool measurements

Orientation Cut horizontal slots across the 500 mm width of the concrete block’s top surface

During cutting the entire surface of the guide plate or all guide rollers shall be in contact with the surface

The cuts shall be conducted in the central area of the concrete block

Measurement is taken during 15 s when the tool is in the middle of the block

Table Z103 — Concrete formulation (per cubic metre)

1 844 kg Particle size Fraction

a Very hard aggregates such as flint or granite and very soft aggregates such as limestone shall

not be used

b The water/cement mass ratio shall be 0,55 ± 0,02 (the mass tolerance of cement and water is

+ 10 % to enable the concrete manufacturer to ensure compressive strength with local cement)

a Or maximum cutting depth and width, if the maximum possible setting is less than the proposed value

Replace the existing 6.2 by the following:

6.2 Vibration 6.2.4.2 Location of the measurement

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6.2.7.2 Declaration of the vibration emission value

Addition:

The vibration emission value ah of the handle with the highest emission and the uncertainty K shall be

declared

7 Classification

8 Marking and instructions

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 spindle thread size;

• “ WARNING Always wear eye protection” or the 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

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

EN 60745-2-22:2011+A11:2013 (E) – 7 – – 14 – EN 60745-2-22:2011/A11:2013

Table Z105 — Vibration test conditions for wall chasers Material and set

up Concrete block according to Table 800 mm x 500 mm x 200 mm fixed rigidly in a vertical position on a ground support Z103 with the minimum dimensions of

(e.g by means of clamps), as illustrated in Figure Z105 The ground support shall

be large and solid enough to carry the test block and to ensure the stability of the workpiece fixed to it during the test

in place and fitted correctly The hose for dust extraction shall be connected and have adequate length to eliminate the influence of the vibration from the vacuum system on the tool measurements

Orientation The work is done on a smooth surface of the concrete block’s vertical side

Cut horizontal slots across the 500 mm width of the concrete block During cutting the entire surface of the guide plate or all guide rollers shall be in contact with the surface

The cut shall not be less than 20 mm from the top of the concrete block

Feed force The forces applied to the tool shall be sufficient to obtain rated input/current ± 10%

Measurement starts when the wheel enters the concrete block and finishes when the wheel leaves the block

6.2.7.2 Declaration of the vibration total value

Addition:

The vibration total value ah of the handle with the highest emission and the uncertainty K shall be

declared

8.12.2 a) Replace the existing items Z101 to Z103 by the following:

Z101) Instruction on the correct use of the dust collection system, unless the machine is intended for

operation with a liquid system

Z102) Instruction to wear a dust mask, unless the machine is intended for operation with a liquid

system

Z103) Instruction to always wear hearing protection





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6.2 Vibration 6.2.4.2 Location of the measurement

6.2.7.2 Declaration of the vibration emission value

Addition:

The vibration emission value ah of the handle with the highest emission and the uncertainty K shall be

declared

7 Classification

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 spindle thread size;

• “ WARNING Always wear eye protection” or the 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

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

wheel The guard helps to protect operator from broken wheel fragments and accidental

contact with wheel

b) Use only bonded reinforced or diamond cut-off wheels for your power tool Just

because an accessory can be attached to your power tool, it does not assure safe operation.

NOTE Use the wording “bonded reinforced” or “diamond” as applicable depending on the designation of the tool c) The rated speed of the accessory must be at least equal to the maximum speed marked on

the power tool Accessories running faster than their rated speed can break and fly apart

d) Wheels must be used only for recommended applications For example: do not grind with

the side of cut-off wheel Abrasive cut-off wheels are intended for peripheral grinding, side forces

applied to these wheels may cause them to shatter.

e) Always use undamaged wheel flanges that are of correct diameter for your selected wheel

Proper wheel flanges support the wheel thus reducing the possibility of wheel breakage.

f) Do not use worn down reinforced wheels from larger power tools Wheels intended for a larger

power tool are not suitable for the higher speed of a smaller tool and may burst.

NOTE The above warning does not apply for tools only designated to be used with diamond wheels

g) The outside diameter and the thickness of your accessory must be within the capacity rating

of your power tool Incorrectly sized accessories cannot be adequately guarded or controlled

h) The arbour size of wheels and flanges must properly fit the spindle of the power tool Wheels

and flanges with arbour holes that do not match the mounting hardware of the power tool will run out of balance, vibrate excessively and may cause loss of control.

i) Do not use damaged wheels Before each use, inspect the wheels for chips and cracks If power tool or wheel is dropped, inspect for damage or install an undamaged wheel After inspecting and installing the wheel, position yourself and bystanders away from the plane

of the rotating wheel and run the power tool at maximum no load speed for one minute

Damaged wheels will normally break apart during this test time.

j) Wear personal protective equipment Depending on application, use face shield, safety goggles or safety glasses As appropriate, wear dust mask, hearing protectors, gloves and shop apron

capable of stopping small abrasive or workpiece fragments The eye protection must be

cap-able of stopping flying debris generated by various operations The dust mask or respirator must

be capable of filtrating particles generated by your operation Prolonged exposure to high intensity noise may cause hearing loss

k) Keep bystanders a safe distance away from work area Anyone entering the work area must

wear personal protective equipment Fragments of workpiece or of a broken wheel may fly away

and cause injury beyond immediate area of operation.

l) 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

up Concrete block according to Table Z103 with the minimum dimensions of 800 mm x 500 mm x 200 mm fixed rigidly in a vertical position on a ground support

(e.g by means of clamps), as illustrated in Figure Z105 The ground support shall

be large and solid enough to carry the test block and to ensure the stability of the workpiece fixed to it during the test

in place and fitted correctly The hose for dust extraction shall be connected and have adequate length to eliminate the influence of the vibration from the vacuum

system on the tool measurements

Orientation The work is done on a smooth surface of the concrete block’s vertical side

Cut horizontal slots across the 500 mm width of the concrete block During cutting the entire surface of the guide plate or all guide rollers shall be in contact with the

surface

The cut shall not be less than 20 mm from the top of the concrete block

Feed force The forces applied to the tool shall be sufficient to obtain rated input/current ± 10%

Measurement starts when the wheel enters the concrete block and finishes when the wheel leaves the block

6.2.7.2 Declaration of the vibration total value

Addition:

The vibration total value ah of the handle with the highest emission and the uncertainty K shall be

declared

8.12.2 a) Replace the existing items Z101 to Z103 by the following:

Z101) Instruction on the correct use of the dust collection system, unless the machine is intended for

system

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8.6 Addition:

n rated speed

8.12.1.1 Addition:

8.12.1.1.101 Safety instructions for abrasive cutting-off operations

Cut-off machine safety warnings

a) The guard provided with the tool must be securely attached to the power tool and

positioned for maximum safety, so the least amount of wheel is exposed towards

the operator Position yourself and bystanders away from the plane of the rotating

because an accessory can be attached to your power tool, it does not assure safe

operation.

NOTE Use the wording “bonded reinforced” or “diamond” as applicable depending on the designation of the tool

c) The rated speed of the accessory must be at least equal to the maximum speed marked on

and flanges with arbour holes that do not match the mounting hardware of the power tool will run

out of balance, vibrate excessively and may cause loss of control.

i) Do not use damaged wheels Before each use, inspect the wheels for chips and cracks If

power tool or wheel is dropped, inspect for damage or install an undamaged wheel After

inspecting and installing the wheel, position yourself and bystanders away from the plane

j) Wear personal protective equipment Depending on application, use face shield, safety goggles or

safety glasses As appropriate, wear dust mask, hearing protectors, gloves and shop apron

be capable of filtrating particles generated by your operation Prolonged exposure to high intensity

noise may cause hearing loss

a "live" wire may make exposed metal parts of the power tool "live" and could give the operator an

electric shock

BS EN 60745-2-22:2011

EN 60745-2-22:2011 (E)

– 13 –

m) Position the cord clear of the spinning accessory If you lose control, the cord may

be cut or snagged and your hand or arm may be pulled into the spinning wheel.

n) Never lay the power tool down until the accessory has come to a complete stop.

The spinning wheel may grab the surface and pull the power tool out of your control.

o) Do not run the power tool while carrying it at your side Accidental contact with

the spinning accessory could snag your clothing, pulling the accessory into your body.

p) Regularly clean the power tool’s air vents The motor’s fan will draw the dust inside the

housing and excessive accumulation of powdered metal may cause electrical hazards.

q) Do not operate the power tool near flammable materials Sparks could ignite

these materials

r) Do not use accessories that require liquid coolants Using water or other

liquid coolants may result in electrocution or shock

NOTE The above warning does not apply for power tools specifically designed for use with a liquid system.

8.12.1.1.102 Further safety instructions for abrasive cutting-off operations

Kickback and related warnings

Kickback is a sudden reaction to a pinched or snagged rotating wheel Pinching or snagging

causes rapid stalling of the rotating wheel which in turn causes the uncontrolled power tool to

be forced in the direction opposite of the wheel’s rotation at the point of the binding

For example, if an abrasive wheel is snagged or pinched by the workpiece, the edge of the

wheel that is entering into the pinch point can dig into the surface of the material causing the

wheel to climb out or kick out The wheel may either jump toward or away from the operator,

depending on direction of the wheel’s movement at the point of pinching Abrasive wheels

may also break under these conditions

Kickback is the result of power tool misuse and/or incorrect operating procedures or

conditions and can be avoided by taking proper precautions as given below

a) Maintain a firm grip on the power tool and position your body and arm to allow you

to resist kickback forces Always use auxiliary handle, if provided, for maximum

control over kickback or torque reaction during start-up The operator can control

torque reactions or kickback forces, if proper precautions are taken

b) Never place your hand near the rotating accessory Accessory may kickback over your

hand

c) Do not position your body in line with the rotating wheel Kickback will propel the tool

in direction opposite to the wheel’s movement at the point of snagging.

d) Use special care when working corners, sharp edges etc Avoid bouncing and

snagging the accessory Corners, sharp edges or bouncing have a tendency to snag the

rotating accessory and cause loss of control or kickback.

e) Do not attach a saw chain, woodcarving blade, segmented diamond wheel with a

peripheral gap greater than 10 mm or toothed saw blade Such blades create frequent

kickback and loss of control

f) Do not “jam” the wheel or apply excessive pressure Do not attempt to make an

excessive depth of cut Overstressing the wheel increases the loading and susceptibility

to twisting or binding of the wheel in the cut and the possibility of kickback or wheel

breakage.

g) When wheel is binding or when interrupting a cut for any reason, switch off the

power tool and hold the power tool motionless until the wheel comes to a complete

stop Never attempt to remove the wheel from the cut while the wheel is in motion

otherwise kickback may occur Investigate and take corrective action to eliminate the

cause of wheel binding

BS EN 60745-2-22:2011

h) 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

i) Support panels or any oversized workpiece to minimize the risk of wheel pinching

and kickback Large workpieces tend to sag under their own weight Supports must be

placed under the workpiece near the line of cut and near the edge of the workpiece on both sides of the wheel.

j) Use extra caution when making a “pocket cut” into existing walls or other blind

areas The protruding wheel may cut gas or water pipes, electrical wiring or objects that

can cause kickback.

Z101) Instruction on the correct use of the dust collection system unless the machine is intended for operation with a liquid system

Z102) Instruction to wear a dust mask unless the machine is intended for operation with a liquid system Z103) Instruction to always wear hearing protection

8.12.2 a) Addition:

101) Permitted wheel construction (diamond or bonded reinforced, if diamond segmented,

maximum peripheral gap between segments is 10 mm, only with a negative rake angle, see Figure 101), wheel diameter and wheel thickness

102) Explanation of the term “bonded reinforced wheel” or type designation, if applicable

}

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8.12.2 b) Addition:

101) Proper use of blotters, when they are provided with a bonded reinforced product

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 for the mounting and securing of the guard identifying allowable

adjustments to ensure maximum protection of the operator 104) 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 bonded wheel, diamond wheel

105) Proper support for the workpiece 106) If the guide roller or guide plate is removable or adjustable, instructions on its use

and settings

8.12.2 c) Addition:

101) Storage and handling of accessories

9 Protection against access to live parts

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