Bsi bs en 00792 12 2000 + a1 2008

BRITISH STANDARD

Hand-held non-electric
power tools Ð Safety
requirements Ð
Part 12: Small circular, small oscillating
and reciprocating saws

ICS 25.140.01

NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW

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BS EN
792-12:2000
+A1:2008


BS EN 792-12:2000+A1:2008

National foreword
This British Standard is the UK implementation of EN 792-12:2000+A1:2008.

It supersedes BS EN 792-12:2000 which is withdrawn.
The start and finish of text introduced or altered by amendment is indicated
in the text by tags. Tags indicating changes to CEN text carry the number of
.
the CEN amendment. For example, text altered by CEN amendment
A1 is
indicated by !".
The UK participation in its preparation was entrusted by Technical Committee
MCE/8, Compressors, pneumatic tools, pneumatic machines and vacuum
technology to panel MCE/8/-/2, HHand held, non electric power tools - Safety.
A list of organizations represented on this committee 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.
Compliance with a British Standard cannot confer immunity from
legal obligations.

This British Standard
was published under the
authority of the Standards
Committee and comes into
effect on 15 August 2000

© BSI 2009

ISBN 978 0 580 61942 7

Amendments issued since publication
Date

Comments

31 May 2009

Implementation of CEN amendment A1:2008


EUROPEAN STANDARD

EN 792-12:2000+A1

NORME EUROPÉENNE
EUROPÄISCHE NORM

September 2008

ICS 25.140.10; 25.140.99

Supersedes EN 792-12:2000

English Version

Hand-held non-electric power tools - Safety requirements - Part
12: Small circular, small oscillating and reciprocating saws
Machines portatives à moteur non électrique - Prescriptions
de sécurité - Partie 12: Petites scies circulaires et petites
scies oscillantes et alternatives

Handgehaltene nicht-elektrisch betriebene Maschinen Sicherheitsanforderungen - Teil 12: Kleine Kreis-,
oszillierende und Stichsägemaschinen

This European Standard was approved by CEN on 26 May 2000 and includes Amendment 1 approved by CEN on 26 July 2008.
CEN 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 CEN Management Centre or to any CEN 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 CEN member into its own language and notified to the CEN Management Centre has the same status as the
official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland,
France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,
Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.

EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG

Management Centre: rue de Stassart, 36

© 2008 CEN

All rights of exploitation in any form and by any means reserved
worldwide for CEN national Members.

B-1050 Brussels

Ref. No. EN 792-12:2008+A1:2008: E


BS EN 792-12:2000+A1:2008
EN 792-12:2000+A1:2008 (E)

Contents

Page

Foreword..............................................................................................................................................................3
Introduction .........................................................................................................................................................4
1

Scope ......................................................................................................................................................5

2

Normative references ............................................................................................................................5

3
3.1
3.2

Terms and definitions ...........................................................................................................................6
General terms and definitions ..............................................................................................................6
Terms and definitions related to small circular, small oscillating and reciprocating saws ..........7

4

List of hazards........................................................................................................................................8

5
5.1
5.2

5.3
5.4
5.5
5.6
5.7

Safety requirements and measures .....................................................................................................9
Mechanical safety ..................................................................................................................................9
Thermal safety......................................................................................................................................10
Noise .....................................................................................................................................................10
Vibration ...............................................................................................................................................10
Materials and substances processed, used or exhausted ..............................................................11
Ergonomics ..........................................................................................................................................11
Safety related measures and means..................................................................................................11

6
6.1
6.2

Information for use ..............................................................................................................................12
Marking, signs and written warnings.................................................................................................12
Instruction for use ...............................................................................................................................12

7
7.1
7.2
7.3
7.4

Verification ...........................................................................................................................................14

Noise .....................................................................................................................................................14
Vibration ...............................................................................................................................................14
Unintentional start ...............................................................................................................................14
Structure of verification ......................................................................................................................15

Annex A (informative) Examples of power tools covered by this part ........................................................16
Annex B (informative) Symbols for labels and signs ....................................................................................17
Annex ZA (informative) !Relationship between this European Standard and the Essential
Requirements of EU Directive 98/37/EC".......................................................................................18
Annex ZB (informative) !Relationship between this European Standard and the Essential
Requirements of EU Directive 2006/42/EC"...................................................................................19
Bibliography ......................................................................................................................................................20

2


B S EN 792-12:2000+A1:2008
EN 792-12:2000+A1:2008 (E)

Foreword
This document (EN 792-12:2000+A1:2008) has been prepared by Technical Committee CEN/TC 255 "Handheld, non-electric power tools - Safety ", the secretariat of which is held by SIS.
This European Standard shall be given the status of a national standard, either by publication of an identical
text or by endorsement, at the latest by March 2009 and conflicting national standards shall be withdrawn at
the latest by December 2009.
This European Standard has been prepared under a mandate given to CEN by the European Commission
and the European Free Trade Association, and supports essential requirements of EU Directive(s).
!For relationship with EU Directive(s), see informative Annexes ZA and ZB, which are integral parts of this
document."
This document includes Amendment 1, approved by CEN on 2008-07-26.
This document supersedes EN 792-12:2000.

The start and finish of text introduced or altered by amendment is indicated in the text by tags ! ".
The standard has been created in close co-operation with CENELEC/TC 61F with the aim of achieving
requirements for mechanical safety in the EN 50144 series, which are similar for hand-held electric and nonelectric power tools.
The annexes to this part of the standard are:
Annex A (informative) Examples of power tools covered by this part
Annex B (informative) Labels, signs and tags
!Annexes ZA and ZB" (informative) Clauses of this European Standard addressing essential
requirements or other provisions of EU Directives.
This standard also contains a Bibliography.
According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following
countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Cyprus, Czech
Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain,
Sweden, Switzerland and United Kingdom.

3


BS EN 792-12:2000+A1:2008
EN 792-12:2000+A1:2008 (E)

Introduction
This European standard is a type C standard as stated in EN 1070.
The machinery concerned and the extent to which hazards, hazardous situations and events are covered are
indicated in the scope of this standard.
When provisions of this type C standard are different from those which are stated in type A or B standards, the
provisions of this type C standard take precedence over the provisions of other standards, for machines that
have been designed and built according to the provisions of this type C standard.
The European Standard, EN 792, consists of a number of independent parts for individual types of hand-held
non-electric power tools.

Other EN standards deal with safety rules for hand-held power tools used in e. g. the following fields:


agriculture and forestry such as chain saws, hedge-trimmers, brush cutters, grass trimmers;



construction and building such as cutting-off power tools, concrete vibrators;



food industry, such as fowl secateurs, sheep shears.

Endeavours have been made to achieve co-ordination with the relevant Technical Committees so that the
safety requirements are compatible.
This standard is divided in the following parts:
Part 1 - Assembly power tools for non-threaded mechanical fasteners (former part 14)
Part 2 - Cutting-off and crimping power tools (former part 15)
Part 3 - Drills and tappers
Part 4 - Non rotary percussive power tools
Part 5 - Rotary, percussive power drills
Part 6 - Assembly power tools for threaded fasteners
Part 7 - Grinders
Part 8 - Sanders and polishers
Part 9 - Die grinders
Part 10 - Compression power tools
Part 11 - Nibblers and shears
Part 12 - Small circular, small oscillating and reciprocating saws
Part 13 - Fastener driving tools
Certain parts of EN 792 cover hand-held non-electric power tools, driven by internal combustion engines

powered by gaseous or liquid fuel. In these parts, the safety aspects relating to internal combustion engines
are found in a normative annex.
The parts are type C standards and refer to pertinent European Standards of type A and B where such
standards are applicable.

4


BS EN 792-12:2000+A1:2008
EN 792-12:2000+A1:2008 (E)

1

Scope

The standard EN 792 applies to hand-held non-electric power tools driven by rotary or linear motors, powered
by compressed air, hydraulic fluid and intended to be used by one operator and supported by:


the operator's hand or hands,



a suspension, e.g. a balancer.

This part, EN 792-12, applies to hand-held non-electric small circular and small oscillating and reciprocating
power tools for sawing. This part lists the significant hazards caused by such power tools and specifies safety
requirements valid for different aspects of safety during their foreseeable lifetime and subsequent disposal.
Power tools covered by this part of the standard:


circular saws, circular knives,



jig saws,



oscillating saws, oscillating knives (windshield knives),



power hack saws,



reciprocating saws.

This part of the standard applies to:


circular saws with saw blades with a diameter of 65 mm or less,



circular saws with diamond cutting-off wheels with diameters of 65 mm or less and a maximum cutting
depth of 10 mm,



oscillating saws having a saw blade with a radius of 50 mm or less or a diamond cutting-off blade with a
radius of 100 mm or less.

NOTE 1
For circular saws having saw blades exceeding 65 mm see requirements for mechanical safety of
EN 50144-2-5 and EN 50144-2-10. For circular saws with diamond cutting-off wheels exceeding 65 mm see part 7 of this
series

Special requirements and modifications on a hand-held power tool for the purpose of mounting it in a fixture
are not covered by this part.
NOTE 2

2

At the date of publication no power saws driven by internal combustion engines are known.

Normative references

This European Standard incorporates by dated or undated reference, provisions from other publications.
These normative references are cited at the appropriate places in the text and the publications are listed
hereafter. For dated references, subsequent amendments to or revisions of any of the publications referred to
in this European Standard are valid only when they are incorporated in this standard by amendment or
revision. For undated references the latest edition of the publication referred to, applies (including
amendments).
EN 292-1:1991, Safety of machinery - Basic concepts, general principles for design – Part 1: Basic
terminology, methodology

5

BS EN 792-12:2000+A1:2008
EN 792-12:2000+A1:2008 (E)

EN 292-2:1991, Safety of machinery - Basic concepts, general principles for design – Part 2: Technical
principles and specifications
EN 563, Safety of machinery - Temperatures of touchable surfaces - Ergonomics data to establish
temperature limit values for hot surfaces
EN 614-1, Safety of machinery - Ergonomic design principles – Part 1: Terminology and general principles
EN 1070, Safety of machinery - Terminology
EN 12096, Mechanical vibration - Declaration and verification of vibration emission values
EN ISO 4871, Acoustics - Declaration and verification of noise emission values of machinery and equipment
(ISO 4871:1996)
!EN ISO 15744:2008, Hand-held non-electric power tools – Noise measurement code – Engineering
method (grade 2) (ISO 15744:2002)"
EN 28662-1, Hand-held portable power tools - Measurement of vibrations at the handle – Part 1: General (ISO
8662-1:1988)
EN ISO 8662-12, Hand-held portable power tools - Measurement of vibrations at the handle – Part 12: Saws
and files with reciprocating action and saws with oscillating or rotating action (ISO 8662-12:1997)
EN 50144-2-5, Safety of hand-held electric motor operated tools – Part 2-5: Particular requirements for
circular saws and circular knives
ISO 3857-3, Compressors, pneumatic tools and machines – Vocabulary – Part 3: Pneumatic tools and
machines.
ISO 5391, Pneumatic tools and machines - Vocabulary

3

Terms and definitions

For the purposes of this part of the standard, the following terms and definitions apply:

3.1

General terms and definitions

3.1.1
hand-held power tool
machine driven by rotary or linear motors powered by compressed air, hydraulic fluid, gaseous or liquid fuel,
electricity or stored energy (e.g. by a spring) to do mechanical work and so designed that the motor and the
mechanism form an assembly that can easily be brought to its place of operation. The hand-held power tool is
operated by one or two hands
NOTE

Hand-held power tools driven by compressed air or gas are called pneumatic tools.

Hand-held power tools driven by hydraulic liquid are called hydraulic tools.
3.1.2
rotary power tool
power tool the output spindle of which rotates
3.1.3
inserted tool
tool inserted in the hand-held power tool to perform the intended work

6


BS EN 792-12:2000+A1:2008
EN 792-12:2000+A1:2008 (E)

3.1.4

service tool
tool intended for performing maintenance or service on the hand-held power tool
3.1.5
control device
device to start and stop the hand-held power tool or to change the direction of the rotation or to control the
functional characteristics such as speed and power
3.1.6
maximum operating pressure
maximum pressure that a hand-held power tool may be operated at, as specified by the manufacturer

3.2

Terms and definitions related to small circular, small oscillating and reciprocating saws

3.2.1
circular saw
rotary power tool equipped with a circular saw blade
3.2.2
oscillating saw
power tool equipped with a circular or segment saw blade which moves with an angular oscillating movement
3.2.3
reciprocating saw
power tool equipped with a straight saw blade which moves with a reciprocating movement. Examples are jig
saw, power hack saw
3.2.4
riving knife
metal part placed in the plane of the saw blade which prevents the wood from tightening onto the rear part of
the saw blade and thus prevents the backward movement of the tool or jamming of the saw blade
3.2.5
circular knife

rotary power tool equipped with a circular knife
3.2.6
oscillating knife
power tool equipped with a knife which moves with an angular oscillating movement
3.2.7
saw blade
blade of circular, segment or straight shape intended for cutting or cutting-off operations by chip removal by
means of teeth with cutting edges
For other terms, see EN 1070 and also ISO 3857-3 and ISO 5391.
For examples of small circular, small oscillating and reciprocating saws see annex A.

7


BS EN 792-12:2000+A1:2008
EN 792-12:2000+A1:2008 (E)

4

List of hazards

The following hazards can occur in the use of small circular, small oscillating and reciprocating saws.
Hazard type

Reference to safety requirement
By design or
Information for
guarding
use

4.1 Mechanical hazards
- cutting
- drawing in or trapping (caused by hair, clothing
etc. getting entangled in a rotating power tool)
- friction or abrasion hazard
- whipping hose
- ejection from high pressure hydraulic systems
- ejection of parts
- loss of stability
- hose and hose coupling specifications

5.1.1, 5.1.6, 5.1.7
6.2.2
5.1.1
5.1.4
5.1.3
5.1.2

6.2.2
6.2.2
6.2.2

4.2 Electrical hazards

6.2.2

4.3 Thermal hazards
- explosions
- health damage due to hot or cold surfaces
4.4 Hazards caused by noise

5.2
5.2
5.3

6.2.2

4.5 Hazards generated by vibration

5.4

6.2.2

4.6 Hazards generated by materials
substances processed, used or exhausted
- inhalation of harmful dust
- exhaust air
- lubricants
- hydraulic fluid

and
5.5.2
5.5.1
5.5.3
6.2.2

4.7 Hazards caused by neglecting ergonomic
principles
- repetitive strain injuries
- unsuitable postures

- inadequate grip design and tool balance
- neglected use of personal protection equipment

5.6.1, 5.6.2
5.6.1

6.2.2
6.2.2

4.8 Hazards caused by failure of energy supply
- unexpected return of energy supply after a
breakdown
- incorrect hydraulic fluid flow and outlet pressure
4.9 Hazards caused by missing and/or incorrectly
positioned safety related means
- start and stop device
- unintentional start

8

6.2.2
6.2.2

5.7.1
5.7.2

6.2.2


BS EN 792-12:2000+A1:2008

EN 792-12:2000+A1:2008 (E)

5

Safety requirements and measures

5.1
5.1.1

Mechanical safety
Surfaces, edges and corners

Accessible parts of small circular, small oscillating and reciprocating saws, except the inserted tool, shall not
have sharp edges or angles or rough or abrasive surfaces, see 3.1 of EN 292-2:1991.
5.1.2

Supporting surface and stability

Small circular, small oscillating and reciprocating saws shall be so designed that they can be laid aside and
remain in stable position on a plane surface.
5.1.3

Flanges

Flanges for small circular saws, for clamping the saw blade to the working spindle shall be of equal size and of
a size not less than 0,3 times the rated diameter of the blade.
5.1.4

High pressure ejection

Hydraulic systems of the power tools shall be enclosed so as to give protection against high pressure fluid
ejection.
5.1.5

Guide plate

Small circular saws and jig saws shall have a guide plate affixed to the saw of a size and shape to permit the
intended operation of the saw.
Power hack saws shall have a guide plate to absorb the reaction force from the sawing process.
5.1.6

Run-down time

Small circular saws shall have a run-down time after stop command has been given within 5 s.
5.1.7

Guard

Small circular saws shall be provided with a guard above the guide plate to prevent unintentional contact of
hands with the inserted saw blade. It shall not be possible to remove the guard without the aid of a service
tool.
Small circular saws with a sawing depth of more than 10 mm shall be provided with a moveable (retractable)
guard covering the part of the blade protruding below the guideplate. The moveable guard shall move freely
without jamming. When released from its full open position, it shall return to the fully closed position in 0,3 s.
Reciprocating saws do not require a guard for the part of the saw blade which performs the sawing and is
situated below the guide plate. The part of the saw blade which is situated above the guide plate shall be
protected by guard or the design shall be so that the risk of contact with the teeth of the blade and with moving
parts of the mechanism is prevented.
NOTE

Oscillating saws do not require a guard.

9


BS EN 792-12:2000+A1:2008
EN 792-12:2000+A1:2008 (E)

5.1.8

Riving knife

Small circular saws intended for cutting wood shall be provided with a riving knife. The riving knife shall not be
thicker than the width of the cutting groove nor thinner than the saw blade body. For more detailed
specifications see EN 50144-2-5.

5.2

Thermal safety

Surface temperatures of parts of the power tools which are held during use or could be inadvertently touched
shall follow the provisions of EN 563.
NOTE

The limit values for low temperatures are studied by CEN/TC 122.

Power tools for use in potentially explosive atmospheres should comply with EN 1127-1. However because
the suitability of a power tool for use in potentially explosive atmospheres will depend not only on the power
tool but the inserted tool and the workpiece, it is not possible to give any detailed advice in this standard.

5.3

Noise

5.3.1

General

The emission of noise from a hand-held power tool shall be kept as low as possible.
The noise emission from using hand-held power tools emanates from three main sources:


the hand-held power tool itself,



the inserted tool,



the workpiece.

NOTE

5.3.2

Generally, the manufacturer has no possibility of influencing the noise emitted by the processed workpiece.

Noise emitted by the hand-held power tool

The noise emitted by the hand-held power tool itself can be divided into:


noise from the motor,



noise from exhaust air at pneumatic tools,



vibration induced noise.

The noise from the exhaust of air is one major contributor of noise from pneumatic driven hand-held power
tools. A silencer of good design will reduce this noise.
The principles contained in EN ISO 11688-1 should be followed to reduce the noise emitted by the power tool.
NOTE
The exhaust air can also be piped away in a hose away from the operator, however this method has
limitations in practice.

Vibration induced noise can be reduced by use of acoustic isolation and vibration damping.

5.4

Vibration

Vibration at the handle of a hand-held power tool shall be kept as low as possible.

10

BS EN 792-12:2000+A1:2008
EN 792-12:2000+A1:2008 (E)

The principles contained in CR 1030-1 should be followed to reduce the vibration emitted by the power tool.

5.5
5.5.1

Materials and substances processed, used or exhausted
Exhaust air

For small circular, small oscillating and reciprocating saws driven with compressed air the exhaust air or
gases shall be directed in such a way that it cannot cause a hazard to the operator and so that any secondary
effects are minimized. e.g. blowing the dust and reflected air from the workpiece onto the operator.
5.5.2

Dust

It shall be possible to connect to circular saws a dust collecting device or to use a dust suppression device.
5.5.3

Lubricants

Lubricants for small circular saws, specified by the manufacturer, shall not cause hazards to the operator or
the environment.

5.6
5.6.1

Ergonomics
Design of the handle

Handles and other parts used for gripping the power tool shall be designed to ensure that the operator is able
to grip the power tool correctly and to perform the expected work. Handles shall suit the functional anatomy of
the hand and the dimensions of the hands of the operator population. See 3.6 of EN 292-2:1991 and
EN 614-1.
Power tools having a mass greater than 2 kg (including the inserted tool) shall be capable of being supported
by two hands whilst being lifted or operated.
5.6.2

Control device

The control device shall be adapted to the handle or to the part of the power tool being gripped by the
operator so that it can be held comfortably in the run position.

5.7
5.7.1

Safety related measures and means
Start and stop device

Small circular, small oscillating and reciprocating saws shall be equipped with a single control device to start
or stop them. It shall be arranged near the handle so that the operator can activate it without releasing the grip
on the handles.
The start and stop device shall be so designed that the inserted tool ceases to be powered when the start and
stop device is released. Without manual effort it shall, when released, move to the stop position, i.e. be of the
type "hold to run".
The start and stop device shall be in the stop position or immediately move to the stop position when the
power tool is connected to the energy supply.

It shall not be possible to lock the start and stop device in the running position.

11


BS EN 792-12:2000+A1:2008
EN 792-12:2000+A1:2008 (E)

5.7.2

Unintentional start

The start and stop device shall be so designed, positioned or guarded that the risk of unintentional start is
minimized. Verification shall be made according to clause 7.3.
The start and stop device for small circular and reciprocating saws shall be designed with two separate and
dissimilar actions to start it.

6

Information for use

6.1

Marking, signs and written warnings

!Small circular, oscillating and reciprocating saws be marked visibly, legibly and indelibly with the following
minimum particulars:


the business name and full address of the manufacturer and, where applicable, his authorized

representative;



designation of the machinery;



the CE Marking (see Annex III);



designation of series or type;



serial number, if any;



the year of construction, that is the year in which the manufacturing process is completed."

The power tools shall be permanently marked with a graphical symbol, stating that the operator's instruction
shall be read before work starts, according to annex B.
Other graphical symbols that can be used are shown in annex B.

6.2

Instruction for use

6.2.1

General

The instructions for use shall be drawn up by the manufacturer and contain:


operator's instruction,



maintenance instruction.

The operator's instructions shall be drawn up according to 5.5.2 of EN 292-2 and annex A, 1.7.4 and 2.2 of
EN 292-2:1991. Concerning residual risks see 5.5 of EN 292-1:1991.
6.2.2

Operator's instruction

The operator's instruction shall include a description of the correct use of the power tool and make reference
to the appropriate inserted tools.
The operator's instruction shall state that any other use is forbidden.
Foreseeable misuse of the power tool, which experience has shown to occur, shall be warned against.

12


BS EN 792-12:2000+A1:2008
EN 792-12:2000+A1:2008 (E)

!The operator's instruction shall give information on airborne noise emissions:


the A-weighted emission sound pressure level at workstations, where this exceeds 70 dB (A); where this
level does not exceed 70 dB (A), this fact shall be indicated;



the peak C-weighted instantaneous sound pressure value at workstations, where this value exceeds
63 Pa (130 dB in relation to 20 µPa);



the A-weighted sound power level emitted by the machinery, where the A-weighted emission sound
pressure level at workstations exceeds 80 dB(A)."

!The operator's instruction shall give information on vibration total value in the handles, including
uncertainty of measurement."
The reference numbers of the applied standards for noise and vibration measurements shall be given.
The operator's instruction shall recommend the use of ear protectors.
Warnings shall be given:


that power tools are not generally insulated for coming into contact with electric power sources;



that power tools shall not be used in explosive atmospheres unless specially designed for that purpose;



not use blades which are cracked or deformed;



ensure that the blade is properly clamped;



not stop rotation of the disc by a lateral pressure on it;



moveable guard must not be locked in the open position;



for drawing in or trapping of long hair, loose clothing;



make sure that the guard for the rotary saw blade, if mounted on the saw, is in place and is correctly
mounted and functions properly;



make sure that sparks if emitted are directed so as not to cause a hazard;



of the risk of a whipping compressed air hose.

Instructions shall be given:


to disconnect power tools from the energy source before changing blades or making adjustments;



to release the start and stop device in case of failure of the energy supply;



to rest the guide plate fully on the workpiece;



to use only lubricants recommended by the manufacturer;



to use only hydraulic fluids recommended by the manufacturer's instruction.

NOTE

It is recommended to check with the manufacturer if non-flammable fluids can be used.

Information shall be given for hydraulic power tools regarding the design and dimension of couplings:

13

BS EN 792-12:2000+A1:2008
EN 792-12:2000+A1:2008 (E)



specification of the coupling,



specification of hoses with regard to pressure and flow,



maximum inlet pressure,



maximum flow,



maximum inlet temperature of the inlet fluid.

6.2.3

Maintenance instruction

The maintenance instruction shall contain:



instruction to keep the power tool safe by regular maintenance;



information on when the regular maintenance shall be carried out; for instance after a specified time of
operation, a specified number of cycles/operations, a stated number of times per year;



instructions for disposal so as not to impose hazards to personnel and the environment;

!


the specifications of the spare parts to be used, when these affect the health and safety of operators."

7

Verification

7.1

Noise

Compliance with 5.3 and 6.2.2 shall be verified as follows:
An equivalent continuous A-weighted sound pressure level at workstation shall be measured, and stated
according to !EN ISO 15744:2008".
An A-weighted sound power level shall be measured and stated according to !EN ISO 15744:2008".

The noise emission values shall be declared according to EN ISO 4871.

7.2

Vibration

Compliance with 5.4 and 6.2.2 shall be verified as follows:
The vibration level at the handle of power tool shall be measured and stated according to EN 28662 1 and
EN ISO 8662-12.
The vibration value shall be declared according to EN 12096.

7.3

Unintentional start

Compliance with 5.7.2 shall be verified as follows:
The power tool shall be connected to the energy supply and placed in any possible position and pulled over
the horizontal plane by its hose.
Continuous operation of the start and stop device shall then not occur.

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BS EN 792-12:2000+A1:2008
EN 792-12:2000+A1:2008 (E)

7.4

Structure of verification

Safety requirement

Visual check

Functional check

Measurement

Reference to
clauses of this
standard or to
other standards

5.1.1
Surfaces,

X

edges and angles
5.1.2
Stability

X

5.1.3
Flanges

X

5.1.5

Guide plate

X

5.1.6
Run-down time

X

5.1.7
Guards

X

5.1.8
Riving knife

X

X

5.2
Thermal

X

EN 563

X

EN ISO 15744

X

EN 28662-1

safety
5.3
Noise
5.4
Vibration

EN ISO 8662-12
5.5.1
Exhaust air

X

5.5.2
Dust

X

5.6.1

X

X

X

X

Handle
5.6.2
Control device
5.7.1
Start and stop device

X

5.7.2
Unintentional start

X

Clause 7.3

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BS EN 792-12:2000+A1:2008
EN 792-12:2000+A1:2008 (E)

Annex A
(informative)
Examples of power tools covered by this part

E: circular saw
F: scie circulaire

D: Kreissägemaschine

E: oscillating saw
F: scie oscillante
D: oszillierende Sägemaschine

E: jig saw
F: scie sauteuse
D: Stichsägemaschine

E: power hack saw
F: scie droite
D: Fuchsschwanzsägemaschine (Säbelsäge)

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BS EN 792-12:2000+A1:2008
EN 792-12:2000+A1:2008 (E)

Annex B
(informative)
Symbols for labels and signs

Symbol

Significance

Colours

B.1

The operator's instruction
must be read before work
starts

Background: blue

Hearing protection must be
worn

Background: blue

ISO 3864

Symbol: white

EN 61310-1
EN 61310-2

Background: blue

ISO 3864

Symbol: white

EN 61310-1
EN 61310-2

B.2

B.3

B.4

Eye protection must be used
or safety glasses worn

Direction of rotation

Corresponding
standard

Symbol: white

Background:
optional
Symbol: black

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BS EN 792-12:2000+A1:2008
EN 792-12:2000+A1:2008 (E)

Annex ZA
(informative)
!Relationship between this European Standard and the Essential
Requirements of EU Directive 98/37/EC

This European Standard has been prepared under a mandate given to CEN by the European Commission
and the European Free Trade Association to provide a means of conforming to Essential Requirements of the
New Approach Directive 98/37/EC, amended by 98/79/EC on machinery.
Once this standard is cited in the Official Journal of the European Communities under that Directive and has
been implemented as a national standard in at least one Member State, compliance with the clauses of this
standard confers, within the limits of the scope of this standard, a presumption of conformity with the
corresponding Essential Requirements of that Directive except ER 1.5.7 and associated EFTA regulations.
WARNING — Other requirements and other EU Directives may be applicable to the product(s) falling within
the scope of this standard."

18