EN 1757-4:2003
(Main)Safety of industrial trucks - Pedestrian propelled trucks - Part 4: Scissor lift pallet-trucks
Safety of industrial trucks - Pedestrian propelled trucks - Part 4: Scissor lift pallet-trucks
1.1 This standard applies to pedestrian propelled pallet trucks with lift heights above 300 mm and up to 1,000 mm and rated capacities up to 1,000 kg hereinafter referred to as "trucks". Special applications call for rated capacities above 1,000 kg. Scissor lift pallet trucks for these capacities may warrant requirements additional to those laid down in the present standard.
Sicherheit von Flurförderzeugen - Mitgänger-Flurförderzeuge - Teil 4: Scheren-Gabelhubwagen
1.1 Diese Norm findet Anwendung auf Mitgänger-Scheren-Gabelhubwagen wie in 3.1 definiert mit einer Hubhöhe bis 1000 mm und mit einer Tragfähigkeit bis zu 1000 kg, nachfolgend als �Scheren-Gabelhubwagen" bezeichnet.
Integrierte Batterieladegeräte sind Bestandteil des Scheren-Gabelhubwagens.
1.2 Fest angebaute oder auswechselbare Anbaugeräte, die am Scheren-Gabelhubwagen angebaut werden können, sind in dieser Norm nicht behandelt.
Hubtische nach EN 1570 sind nicht Bestandteil dieser Norm.
1.3 Diese Norm behandelt die technischen Anforderungen, um die in Abschnitt 4 aufgeführten Gefährdungen zu minimieren, die während der in Übereinstimmung mit den Vorgaben des Herstellers durchgeführten Inbetriebnahme, des Betriebes und der Instandhaltung von Scheren-Gabelhubwagen entstehen können.
Zusätzlich sollten Scheren-Gabelhubwagen bezüglich der durch diese Norm nicht abgedeckten Gefährdungen mit den anwendbaren Nachbarnormen und, sofern zweckmäßig, mit der EN 292 übereinstimmen.
1.4 Diese Norm legt keine zusätzlichen Anforderungen fest für:
¾ den Betrieb unter erschwerten Bedingungen (z. B. extreme Umgebungsbedingungen, wie Kühlhausbetrieb, hohe Temperaturen, korrosive Umgebung, starke Magnetfelder),
¾ den Betrieb unter bestimmten Voraussetzungen (z. B. mögliche explosionsfähige Atmosphäre),
¾ die elektromagnetische Verträglichkeit (Emission - Widerstandsfähigkeit),
die Handhabung von Lasten, deren Eigenschaften zu gefährlichen Situationen führen können (z. B. feuerflüssige Massen, Säuren/Basen, radioaktive Materialien, besonders brüchige Lasten),
Sécurité des chariots de manutention - Chariots manuels - Partie 4: Transpalettes à ciseaux
1.1 La présente norme s'applique aux transpalettes manuels à ciseaux de manutention, tels que définis au 3.1, à hauteur de levée jusqu'à 1 000 mm et de capacité nominale jusqu'à 1 000 kg inclus, appelés ci-après "transpalettes à ciseaux".
Les chargeurs de batteries embarqués font partie du transpalette à ciseaux.
1.2 Les équipements fixes ou amovibles qui peuvent être installés sur le transpalette à ciseaux ne sont pas traités dans la présente norme.
Les tables élévatrices traitées dans l'EN 1570 ne sont pas prises en compte dans la présente norme.
1.3 La présente norme traite des exigences techniques destinées à minimiser les phénomènes dangereux, listés à l'Article 4, qui peuvent apparaître pendant la mise en service, le fonctionnement et la maintenance des transpalettes à ciseaux lorsqu'ils sont utilisés conformément aux spécifications du constructeur.
De plus, il convient que les transpalettes à ciseaux se conforment, pour les phénomènes dangereux non couverts par la présente norme, aux normes de base applicables et à l'EN 292 si c'est approprié.
1.4 La présente norme ne donne pas les exigences complémentaires pour :
l'utilisation dans des conditions sévères (par exemple des environnements extrêmes tels que : des applications frigorifiques, des hautes températures, des environnements corrosifs, des champs magnétiques intenses) ;
l'utilisation dans des conditions particulières (par exemple des atmosphères potentiellement explosibles) ;
la compatibilité électromagnétique (émission, immunité) ;
la manutention de charges dont la nature pourrait conduire à des situations dangereuses (par exemple du métal en fusion, des acides / bases, des matériaux émetteurs de radiations, des charges particulièrement fragiles) ;
les phénomènes dangereux apparaissant pendant la construction, le transport, la mise hors service, la mise au rebut ;
la pression du vent en service et hors service ;
le contact direct avec les denrées alimentaires ;
l'utilisati
Varnost vozil za talni transport – Ročno gnana vozila – 4. del: Vozički s škarjasto dvigalko
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
SIST EN 1757-4:2004
01-junij-2004
9DUQRVWYR]LO]DWDOQLWUDQVSRUW±5RþQRJQDQDYR]LOD±GHO 9R]LþNLVãNDUMDVWR
GYLJDONR
Safety of industrial trucks - Pedestrian propelled trucks - Part 4: Scissor lift pallet-trucks
Sicherheit von Flurförderzeugen - Mitgänger-Flurförderzeuge - Teil 4: Scheren-
Gabelhubwagen
Sécurité des chariots de manutention - Chariots manuels - Partie 4: Transpalettes a
ciseaux
Ta slovenski standard je istoveten z: EN 1757-4:2003
ICS:
53.060 Industrijski tovornjaki Industrial trucks
SIST EN 1757-4:2004 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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EUROPEAN STANDARD
EN 1757-4
NORME EUROPÉENNE
EUROPÄISCHE NORM
April 2003
ICS 53.060
English version
Safety of industrial trucks - Pedestrian propelled trucks - Part 4:
Scissor lift pallet-trucks
Sécurité des chariots de manutention - Chariots manuels - Sicherheit von Flurförderzeugen - Mitgänger-
Partie 4: Transpalettes à ciseaux Flurförderzeuge - Teil 4: Scheren-Gabelhubwagen
This European Standard was approved by CEN on 9 January 2003.
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 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 Management Centre has the same status as the official
versions.
CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece,
Hungary, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Slovakia, Spain, Sweden, Switzerland and United
Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: rue de Stassart, 36 B-1050 Brussels
© 2003 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 1757-4:2003 E
worldwide for CEN national Members.
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EN 1757-4:2003 (E)
Contents
Foreword.4
0 Introduction .5
1 Scope .5
2 Normative references .6
3 Terms and definitions.6
4 List of hazards.7
5 Requirements .10
5.1 General.10
5.2 Design and contruction forces for truck .11
5.3 Propelling, steering .11
5.4 Load handling controls .12
5.4.1 General.12
5.4.2 Control with a device located on the tiller.12
5.4.3 Control with a device not located on the tiller.13
5.5 Hydraulic lifting system .13
5.5.1 End stroke device .13
5.5.2 Load supporting.13
5.5.3 Pressure relief valves.14
5.5.4 Hydraulic circuit.14
5.5.5 Lowering control.14
5.5.6 Failure of energy supply or hydraulic circuit.14
5.6 Wheel guards .14
5.7 Parking brake .15
5.8 Stability .15
5.9 Lateral stabilisers .15
5.10 Protection against crushing, shearing and entanglement points .15
5.11 Edges and angles .15
5.12 Additional requirements for trucks with battery powered lifting.15
5.12.1 Lifting .15
5.12.2 Electrical systems and equipment.15
6 Verifications of safety requirements and/or measures.15
6.1 General.15
6.2 Design verification on truck type .16
6.2.1 General.16
6.2.2 Structural test.16
6.2.3 Verification of design and construction forces .16
6.2.4 Verification of the parking brake.16
6.2.5 Verification of the stability.16
6.2.6 Verification of stabilisers .16
6.2.7 Hydraulic lift leakage test.16
6.3 Functional routine verification .16
6.3.1 General.16
6.3.2 Inspection before tests.17
6.3.3 Dynamic tests.17
6.4 Inspection after tests.17
7 Information for use .17
7.1 Instruction handbook .17
7.1.1 General obligation .17
7.1.2 Instructions concerning the suitability of the truck with the application .17
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EN 1757-4:2003 (E)
7.1.3 Instructions to operate the truck - Intended uses.18
7.1.4 Residual risks .18
7.1.5 Prohibited uses.18
7.1.6 Instructions for battery powered trucks.18
7.1.7 Instructions for service and maintenance of the truck.19
7.1.8 Instructions for transportation, commissioning, storage and disposal .19
7.2 Minimum marking .19
7.2.1 Information plates.19
7.2.2 Other marking .20
7.2.3 Warnings.20
7.2.4 Languages.20
Annex A (normative) Method for measurement of forces (F) .21
A.1 Conditions for test.21
A.2 Measurement of starting force and rolling force.21
A.2.1 Starting force .21
A.2.2 Rolling force.21
A.3 Measurement of load lifting force .22
A.3.1 Lifting using a tiller.22
A.3.2 Lifting using a hand lever or a pedal .22
A.4 Measurement of the steering force.23
Annex B (normative) Stability tests for pedestrian propelled industrial scissor lift pallet trucks.24
B.1 Conditions of validity .24
B.2 Conditions for tests.24
B.2.1 Equipment and method.24
B.2.2 Condition of the truck .24
B.2.3 Location of the truck on the test platform .24
B.2.4 Test load .25
B.2.5 Safety measures .25
B.2.6 Test procedure.25
Annex ZA (informative) Relationship of this document with EC Directives.28
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EN 1757-4:2003 (E)
Foreword
This document EN 1757-4:2003 has been prepared by Technical Committee CEN /TC 150, "Industrial trucks -
Safety", the secretariat of which is held by BSI.
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 October 2003, and conflicting national standards shall be withdrawn at
the latest by October 2003.
This document has been prepared under a mandate given to CEN by the European Commission and the
European Free Trade Association, and supports essential requirements of EC Directive(s).
For relationship with EC Directive(s), see informative annex ZA, which is an integral part of this document.
Annexes A and B are normative.
This European Standard is one of a series of European Standards for the safety of Industrial trucks. This
series of standards includes :
EN 1726 Safety of Industrial trucks - Self propelled trucks up to and including 10 000 kg
capacity and industrial tractors with a drawbar pull up to and including 20 000 N
Part 1 : General requirements
Part 2 : Additional requirements for trucks with elevating operator position and
trucks specifically designed to travel with elevated loads
EN 1551 Safety of Industrial trucks - Self propelled trucks over 10 000 kg capacity
EN 1459 Safety of Industrial trucks - Self propelled variable reach trucks
EN 1757 Safety of Industrial trucks - Pedestrian propelled trucks
Part 1 : Stacker trucks
Part 2 : Pallet trucks
Part 3 : Platform trucks
Part 4 : Scissor lift pallet trucks
EN 1525 Safety of Industrial trucks - Driverless trucks and their systems
EN 1526 Safety of Industrial trucks - Additional requirements for automated functions on trucks
EN 1175 Safety of Industrial trucks - Electrical requirements
Part 1 :General requirements for battery powered trucks
Part 2 : General requirements for internal combustion engine powered trucks
Part 3 : Specific requirements for electrical power transmission systems of internal
combustion engine powered trucks
EN 1755 Safety of Industrial trucks - Operation in potentially explosive atmospheres – Use in
flammable gas, vapour, mist and dust
EN 12053 Safety of Industrial trucks - Test methods for measuring noise emissions
prEN ISO 13564 Safety of Industrial trucks - Test methods for measuring visibility from self-propelled
trucks (ISO/DIS 13564:1996)
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EN 1757-4:2003 (E)
EN 13059 Safety of Industrial trucks - Test methods for measuring vibration
EN 12895 Industrial trucks - Electromagnetic compatibility
According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following
countries are bound to implement this European Standard : Austria, Belgium, Czech Republic, Denmark,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway,
Portugal, Slovakia, Spain, Sweden, Switzerland and the United Kingdom.
0 Introduction
This standard has been prepared to be a harmonised standard to provide one means of conforming with the
essential safety requirements of the Machinery Directive and associated EFTA Regulations.
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 the other standards, for machines
that have been designed and built according to the provisions of this type C standard.
With the aim of clarifying the intention of the standard and avoiding doubts when reading it, the following
assumptions were made when producing it :
- only competent persons operate the machine
- components without specific requirements are designed in accordance with usual engineering practice
and calculation code, including all failure modes.
1 Scope
1.1 This standard applies to pedestrian propelled industrial scissor lift pallet trucks as defined in 3.1 with lift
heights up to 1,000 mm and rated capacities up to and including 1,000 kg hereinafter referred to as "trucks".
On board battery chargers are part of the truck.
1.2 Attachments, fixed or removable, which can be installed on the truck are not dealt with in this standard.
The lifting tables referred to in EN 1570 are not dealt with in this standard.
1.3 This standard deals with the technical requirements to minimise the hazards listed in clause 4 which can
arise during commissioning, operation and maintenance of trucks when carried out in accordance with the
specifications as intended by the manufacturer.
In addition trucks should comply, for the hazards not covered by this standard, with the applicable companion
standards and as appropriate with EN 292.
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EN 1757-4:2003 (E)
1.4 This standard does not establish the additional requirements for :
- operation in severe conditions (e.g. extreme environmental conditions such as : freezer applications, high
temperatures, corrosive environment, strong magnetic fields),
- operation subject to special rules (e.g. potentially explosive atmospheres),
- electromagnetic compatibility (emission - immunity),
- handling of loads the nature of which could lead to dangerous situations (e.g. molten metal, acids/alkalis,
radiating materials, specially brittle loads),
- hazards occurring during construction, transportation, decommissioning and disposal,
- wind pressure in and out of use,
- direct contact with foodstuffs,
- operation on surface other than smooth, level, hard surfaces or gradients,
- lifting of persons,
- trucks whose lifting is powered by external means : electrical (mains .), pneumatic source, .
1.5 Other possible limitations of the scope of other standards referred to that also apply to this standard.
1.6 Hazards relevant to noise, vibration, visibility and static electricity are not dealt with in this standard.
1.7 This standard applies to trucks manufactured after the date of issue.
2 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 these publications apply to
this European Standard only when incorporated in it by amendment or revision. For undated references the
latest edition of the publication referred to applies (including amendments).
EN 292-1 Safety of machinery - Basic concepts, general principles for design - Part 1: Basic terminology,
methodology.
EN 292-2 : 1991 Safety of machinery - Basic concepts, general principles for design - Part 2: Technical
principles and specifications.
EN 1050 : 1996 Safety of machinery - Principles for risk assessment.
EN 1175-1 Safety of industrial trucks – Electrical requirements - Part 1: General requirements for battery
powered trucks.
EN 1726-1 : 1998 Safety of industrial trucks - Self-propelled trucks up to and including 10 000 kg capacity and
industrial tractors with a drawbar pull up to and including 20 000 N - Part 1: General requirements.
ISO 3287 Powered industrial trucks - Symbols for operator controls and other displays.
3 Terms and definitions
For the purposes of this European Standard, the following terms and definitions apply.
3.1
pedestrian propelled industrial scissor lift pallet truck
truck without a mast, with more than two wheels and with two fork arms or platform with scissor lifting and with
wheel base varying with the lift height and lateral stabilisers operating on a smooth, level, hard surface
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EN 1757-4:2003 (E)
The truck is designed to be manually pushed, pulled and steered, by one pedestrian operator using an
articulated tiller.
The load may be raised and lowered on a non tiltable support by either manual means or electrical battery
power.
3.2
rated capacity
load in kilograms given by the manufacturer, the truck can lift and transport under intended operation
The rated capacity is defined for a load
- uniformly distributed and covering entirely the length and width of the fork arms or platform, without going
beyond the length.
- the centre of gravity of which shall be on the centre line of the truck located at a distance horizontally from
the face of the fork arms shank and vertically from the upper face of the fork arms, equal to half the length
of the fork arms.
Figure 1
3.3
intended operating position
position in which the operator may control all operational functions as intended by the manufacturer
3.4
intended operation
the use for which the truck is designed according to the manufacturer's handbook
3.5
operator
designated person, suitably trained (see EN ISO 9001:2000, 4.18) qualified by knowledge and practical
experience, and provided with the necessary instructions to enable the required (operation, test and/or
examination) to be carried out safely
4 List of hazards
The following hazards from annex A of EN 1050:1996 are applicable in the situations described and could
involve risks to persons if not reduced or eliminated. The corresponding requirements are designed to limit the
risk or reduce these hazards in each situation.
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EN 1757-4:2003 (E)
Hazards Corresponding requirements
4.1 MECHANICAL HAZARDS
4.1.1 Crushing 5.3 Propelling, steering
5.4 Load handling controls
5.5 Hydraulic lifting system
5.6 Wheel guards
5.7 Parking brake
5.8 Stability
5.10 Protection against crushing, shearing and
entanglement points
6.2.2 Structural test
7 Information for use
4.1.2 Shearing 5.10 Protection against crushing, shearing and
entanglement points
5.11 Edges and angles
4.1.3 Entanglement 5.10 Protection against crushing, shearing and
entanglement points
4.1.4 Impact 5.3 Propelling, steering
5.11 Edges and angles
5.12 Additional requirements for trucks with battery
powered lifting
7 Information for use
4.1.5 Friction or abrasion 5.3 Propelling, steering
4.1.6 High pressure fluid ejection 5.5 Hydraulic lifting system
4.2 ELECTRICAL HAZARDS 5.12 Additional requirements for trucks with battery
powered lifting
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EN 1757-4:2003 (E)
Hazards Corresponding requirements
4.3 HAZARDS GENERATED BY
NEGLECTING ERGONOMIC
PRINCIPLES
4.3.1 Unhealthy postures or excessive efforts 5.2 Design and construction forces for truck
5.3 Propelling, steering
5.4 Load handling controls
7 Information for use
4.3.2 Inadequate consideration of hand-arm or foot- 5.3 Propelling, steering
leg anatomy 5.4 Load handling controls
4.3.3 Neglected use of personal protection equipment 7 Information for use
4.3.4 Human error 5.4 Load handling controls
5.12.1 Lifting
7 Information for use
4.4 HAZARDS DUE TO FUNCTIONAL
DISORDERS
4.4.1 Failure of energy supply 5.5.6 Failure of energy supply or hydraulic circuit
5.12.2 Electrical systems and equipment
4.4.2 Unexpected ejection of machine parts or fluids 5.5.4 Hydraulic circuit
5.5.3 Pressure relief valves
4.4.3 Failure of control systems 5.5.5 Lowering control
4.5 HAZARDS DUE TO FAILURES 5.5 Hydraulic lifting system
6.2.2 Structural test
7 Information for use
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EN 1757-4:2003 (E)
Hazards Corresponding requirements
4.6.1 Insufficient ability of machinery to remain 5.7 Parking brake
immobilised 7 Information for use
4.6.2 Contact with the wheels 5.3 Propelling, steering
7 Information for use
4.6.3 Impact hazard 5.11 Edges and angles
4.7 ADDITIONAL HAZARDS DUE TO
LIFTING
4.7.1 Lack of stability 5.8 Stability
5.9 Lateral stabilisers
7 Information for use
4.7.2 Overload 5.5.3 Pressure relief valve
7 Information for use
4.7.3 Amplitude of movement 5.5.1 End stroke device
4.8.4 Falling of loads 5.5 Hydraulic lifting system
5.8 Stability
7 Information for use
4.8 HAZARDS COMBINATIONS Covering each individual hazard is sufficient for covering
combinations of hazards
5 Requirements
5.1 General
All the requirements from 5.2 to 5.11 apply to trucks with both manual or powered lifting.
Subclause 5.12 applies only to powered lifting trucks.
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EN 1757-4:2003 (E)
5.2 Design and construction forces for truck
The design and construction of the truck shall be such that the maximum forces required for truck function
(propelling, lifting, steering) shall not exceed the values given in Table 1 below (see 6.2.3).
Table 1 - Maximum allowed forces
PROPELLING LIFTING STEERING
TEST LOAD
STARTING ROLLING
HAND FOOT
N N N
POWERED POWERED
kg
N N
250 150 75 100 300 150
500 200 100 150 300 200
750 250 150 200 300 250
1 000 300 200 250 300 300
NOTE The values in Table 1 are pure design values for the truck and should not be confused with actual operating forces
in the work place (see 7.1.3)
5.3 Propelling, steering
The tiller shall be provided with a handle of the closed loop type or otherwise designed to ensure lateral
protection of the operator’s hands.
The hand grips shall be of a cross section enclosed within the space between two concentric circles of 25 mm
inside diameter and 35 mm outside diameter and provide a minimum span of 100 mm for each hand.
The upper part of the tiller handle shall conform to the dimensions shown in Figures 2 and 3.
When pulling the horizontal distance between the end of the tiller and the front of the wheel (Figure 3) shall be
more than 500 mm, the handle axis being positioned within 700 mm to 1000 mm height.
The tiller shall automatically and gently return to the upper rest position when released.
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EN 1757-4:2003 (E)
Key
1 1100 mm to 1300
mm
Figure 2 - Height of the tiller handle
Key
1 700 mm to 1000 mm
2 500 mm minimum
Figure 3 - Position of the tiller when pulling
5.4 Load handling controls
5.4.1 General
Lift and lower controls may be located on the tiller, when fitted, or may be by a separate device.
5.4.2 Control with a device located on the tiller
If the lift and lower controls are on the tiller, they shall be located ergonomically and shall enable the operator
to activate the controls without releasing hold of the hand grip.
The lowering control shall stop lowering movement when released.
The actuating force on selection devices shall not exceed 150 N at rated capacity.
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EN 1757-4:2003 (E)
Where the movements of selection device for lifting and lowering take place in a plane parallel to the tiller
plane, the lift control shall be selected by pushing the selection devices towards the tiller articulation point, and
the lower control by pulling the
...
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