SIST EN 1756-1:2002+A1:2008

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Tail lifts - Platform lifts for mounting on wheeled vehicles - Safety requirements - Part 1: Tail lifts for goodsDUQRVWQHHayons élévateurs - Plateformes élévatrices à monter sur véhicules roulants - Prescriptions de sécurité - Partie 1: Hayons élévateurs pour marchandisesHubladebühnen - Plattformlifte für die Anbringung and Radfahrzeugen - Sicherheitsanforderungen - Teil 1: Hubladebühnen für GüterTa slovenski standard je istoveten z:EN 1756-1:2001+A1:2008SIST EN 1756-1:2002+A1:2008en,fr53.020.99ICS:SLOVENSKI
STANDARDSIST EN 1756-1:2002+A1:200801-maj-2008







EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 1756-1:2001+A1
March 2008 ICS 53.020.99 Supersedes EN 1756-1:2001 English Version
Tail lifts - Platform lifts for mounting on wheeled vehicles - Safety requirements - Part 1: Tail lifts for goods
Hayons élévateurs - Plateformes élévatrices à monter sur véhicules roulants - Prescriptions de sécurité - Partie 1: Hayons élévateurs pour marchandises
Hubladebühnen - Plattformlifte für die Anbringung and Radfahrzeugen - Sicherheitsanforderungen - Teil 1: Hubladebühnen für Güter This European Standard was approved by CEN on 30 September 2001 and includes Amendment 1 approved by CEN on 5 January 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
B-1050 Brussels © 2008 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 1756-1:2001+A1:2008: E



EN 1756-1:2001+A1:2008 (E) 2 Contents page Foreword.5 Introduction.7 1 Scope.7 2 Normative references.9 3 Terms and definitions.9 4 List of hazards.15 5 Safety requirements and/or protective measures.24 5.1 General requirements.24 5.2 Working area.24 5.3 Manual effort.25 5.4 Operating speeds.25 5.4.1 General.25 5.4.2 Vertical speed.25 5.4.3 Closing and opening speeds.25 5.4.4 Tilting speed.26 5.5 Load stability.26 5.5.1 Tilt angle.26 5.5.2 Stop devices.26 5.6 Limitations of travel.26 5.7 Layout of wires and pipes.26 5.8 Unauthorised operation.26 5.9 Isolation of energy sources.26 5.10 Tail lift stowage.27 5.10.1 Indication.27 5.10.2 Security.27 5.11 Crushing and shearing.27 5.12 Structure working coefficients.27 5.13 Platform.27 5.13.1 Surface.27 5.13.2 !Bluntness of edges.28 5.13.3 Tail lift used as a link bridge.28 5.13.4 Visibility of platform.28 5.14 Drive systems.28 5.14.1 Unintentional movements.28 5.14.2 Mechanical suspension systems.29 5.14.3 Hydraulic systems.30 5.15 Safety devices.31 5.15.1 Safety mechanisms.31 5.15.2 Springs inside safety devices.31 5.16 Loading control.31 5.16.1 Prevention of lifting excessive loads.31 5.16.2 Excessive moment.31 5.17 Control devices.31 5.17.1 Hold-to run principle.31 5.17.2 Logic.31 5.17.3 Unintentional operation.31 5.17.4 One control device for several movements.32 5.17.5 Several control devices for one movement.32 5.18 Control positions.32



EN 1756-1:2001+A1:2008 (E) 3 5.18.1 Multiple control positions.32 5.18.2 Location of control positions.32 6 Optional equipment.32 7 Verification of the safety requirements and/or measures.32 8 Information for use.36 8.1 General.36 8.2 Tail lift used as a link bridge.36 8.3 Inherent risks associated with improper use.36 8.4 Location and nature of information for use.36 8.4.1 Marking on the tail lift.36 8.4.2 Handbooks.37 8.4.3 Inspection record.39 Annex A (informative)
Tail lift mechanisms and types.41 A.1 Mechanisms.41 A.1.1 Parallelogram.41 A.1.2 Column.42 A.1.3 Telescopic.43 A.2 Types.43 A.2.1 Conventional : (full and part width).43 A.2.2 Folding platform.44 A.2.3 Retractable.45 A.2.4 Rotary.46 A.2.5 Door mounted.47 A.2.6 Inset.48 A.2.7 Internally mounted.48 Annex B (normative)
Crushing and shearing.49 B.1 General.49 B.2 Platform lifting and lowering.49 B.2.1 Two-hand control.49 B.2.2 Two-foot control.50 B.2.3 Toe guard.50 B.2.4 Hinged foot protector.53 B.2.5 Safety cut-out.54 B.2.6 Automatic toe protector.55 B.3 Platforms capable of lifting above vehicle floor level.57 B.4 Platform closure.57 B.4.1 Two-hand control.57 B.4.2 Safety cut-out.57 Annex C (informative)
Structure and drive system.58 Annex D (normative)
Drive systems - Steel wire ropes and chains.60 D.1 Recommended specifications of steel wire ropes.60 D.2 Dimensions of pulley grooves.60 D.3 Flare angle.60 D.4 Fleet angles.61 D.5 Pitch circle.62 Annex E (normative)
Examples of controls logic.63 Annex F (informative)
Marking.65 Annex G (informative)
Unintentional operation.66 Annex H (normative)
Verification by the installer.67 H.1 Compatibility between the lift and the vehicle.67 H.2 Static test.67 H.2.1 Deformation.67 H.2.2 Drift.67 H.3 Dynamic test.67 H.4 Test of operation and safety function.67 H.5 Test to verify that the tail lift cannot lift excessive load.68



EN 1756-1:2001+A1:2008 (E) 4 Annex I (informative)
Overloads onto a platform at vehicle floor level.69 Annex ZA (informative)
!Relationship between this European Standard and the Essential Requirements of EU Directive 98/37/EC.70 Annex ZB (informative)
!Relationship between this European Standard and the Essential Requirements of EU Directive 2006/42/EC.71 Bibliography.72



EN 1756-1:2001+A1:2008 (E) 5 Foreword This document (EN 1756-1:2001+A1:2008) has been prepared by Technical Committee CEN/TC 98 "Lifting platforms", the secretariat of which is held by DIN. 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 September 2008 and conflicting national standards shall be withdrawn at the latest by September 2008. This document includes Amendment 1, approved by CEN on 2008-01-05. This document supersedes EN 1756-1:2001. 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 Annexes ZA and ZB, which are integral parts of this document. This standard comprises two parts: Part 1 relates specifically to tail lifts for goods (whether or not accompanied by an operator); Part 2 covers the special requirements of tail lifts for passengers, including those with disabilities. This part comprises ten annexes as follows:  annex A (informative) - Tail lift mechanisms and types;  annex B (normative) - Crushing and shearing;  annex C (informative) - Structure and drive system;  annex D (normative) - Drive systems - Steel wire ropes and chains;  annex E (normative) - Examples for logicality;  annex F (informative) - Marking;  annex G (informative - Unintentional operation;  annex H (normative) - Verification by the installer;  annex I (informative) - Overloads onto a platform at vehicle floor level; !  Annex ZA (informative) - Relationship between this European Standard and the Essential Requirements of EU Directive 2006/42/EC;  Annex ZB (informative) - Relationship between this European Standard and the Essential Requirements of EU Directive 2006/42/EC. "



EN 1756-1:2001+A1:2008 (E) 6 This standard includes 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.



EN 1756-1:2001+A1:2008 (E) 7 Introduction This European Standard is a type C standard, as stated in EN 1070. The machinery concerned and the extent to which hazards are covered are indicated in the scope of this standard. While producing this standard, it was assumed that :  only trained persons operate the machine ;  components without specific requirements are : a) designed in accordance with the usual engineering practice and calculation codes, Including all failure modes ; b) of sound mechanical and electrical construction ; c) made of materials, with adequate strength and of suitable quality ; d) free of defects ;  harmful materials, such as asbestos are not used ;  components are kept in good repair and working order, so that the required dimensions remain fulfilled despite wear ;  by design of the load bearing elements, a safe operation of the machine is assured for loading ranging from zero to 100 % of the rated possibilities and during the tests ;  with the exception of the items listed below, a mechanical device built according to good practice and the requirements of the standard, will not deteriorate to a point of creating a hazard without the possibility of detection ;  the equipment is capable of operating correctly within a temperature range of -15 °C to + 40 °C ;  a negotiation takes place between the manufacturer of the tail lift and the installer for the characteristics of the supporting wheeled vehicle (see also clause 6 of the standard), the fitting of the tail lift on the vehicle and between the installer and the user relating to the specific conditions of the use, places of use of the machinery, also some of the characteristics of the vehicle, the appropriate language ;  the working area is adequately lit (if lighting is not provided with the tail lift) ;  if the place of installations allows a vertical falling height of persons of more than 3 meters notwithstanding the limited travel height indicated in the scope, means external to the machine are used to limit this failing height to 3 meters. 1 Scope This European Standard specifies safety requirements for design of tail lifts as defined in 3.1 for mounting on wheeled goods vehicles. It also specifies the verification of such tail lifts and the safety information that shall be provided for their use. This European Standard deals with the technical requirements to minimize the hazards listed in clause 4 which can arise during the operation of tail lifts when carried out in accordance with the specifications as intended by the manufacturer or his authorized representative.



EN 1756-1:2001+A1:2008 (E) 8 It applies to tail lifts :  used for the purpose of loading and/or unloading such vehicles ;  intended to be fitted, temporarily or permanently, either inside or on the front, side or rear of the wheeled vehicle ;  driven either by hand or electric powered ;  equipped with a platform to support loads which comprise goods, an operator, or a combination of the two ;  with a maximum lifting height not exceeding 3 m above ground, the measurement shall be made when the platform is unloaded ;  rotary type with a maximum lifting height not exceeding 2 m ;  used as a link bridge when intended by the manufacturer.
NOTE A tail lift should not be confused with a link bridge attached to a loading dock which is included within the definition of a dock leveller and is outside the scope of this standard. Loading and/or unloading operations include the use of a tail lift to lift and/or lower loads This European 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, tropical environment, contaminating environments, strong magnetic fields) ;  operations subject to special rules (e.g. potentially explosive atmospheres) ;  supply by electrical networks and the electrical circuit ;  power take off part of the system ;  cable less remote control and electronic equipment ;  electromagnetic compatibility (emission-immunity) ;  static electricity problems ;  handling of loads the nature of which could lead to dangerous situations (e.g. molten metal, acids/bases, radiating materials, specially brittle loads) ;  hazards occurring during installation, transportation, decommissioning ;  hazards occurring when handling suspended loads which may swing freely ;  requirement related to the use on public roads ;  wind pressure in and out of use ;  direct contact with foodstuffs ;  earthquake ;  lightning.



EN 1756-1:2001+A1:2008 (E) 9 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). !deleted text" EN 457, Auditory danger signals - General requirements - Design and testing. EN 574:1996, Safety of machinery - Two hand control device – Functional aspects – Principles for design. EN 811, Safety of machinery - Safety distances to prevent danger zones being reached by the lower limbs. EN 982, Safety of machinery - Safety requirements for fluid power systems and components – Hydraulics. EN 1005-3, Safety of machinery - Human physical performance - Part 3: Recommended force limits for machinery operation. EN 1050, Safety of machinery - Principles for risk assessment. !EN ISO 12100-1:2003, Safety of machinery — Basic concepts, general principles for design — Basic terminology, methodology. EN ISO 12100-2:2003, Safety of machinery — Basic concepts, general principles for design — Technical principles." EN ISO 14122-2, Safety of machinery - Permanent means of access to machinery - Part 2: Working platforms and walkways (ISO 14122-2:2001). EN 61310-1, Safety of machinery - Indication, marking and actuation - Part 1: Requirements for visual, auditory and tactile signals. !ISO 12508:1994, Earth-moving machinery — Operator station and maintenance areas — Bluntness of edges." 3 Terms and definitions For the purposes of this European Standard, the following terms and definitions apply. 3.1 tail lift lifting device intended for installation on or in a wheeled vehicle and which is used for loading and/or unloading this vehicle. The device consists essentially of a platform, a drive system, supporting elements and one or more control positions 3.2 light tail lift tail lift whose nominal load does not exceed 500 kg 3.3 link bridge application of a tail lift in which the platform is used to span from its associated vehicle, to any elevated position (that may be for example a dock or another vehicle), for the purpose of transfering loads to or from the vehicle



EN 1756-1:2001+A1:2008 (E) 10 3.4 tail lift mechanisms see examples in annex A (informative) 3.5 types of tail lifts see annex A (informative) 3.6 wheeled vehicle vehicle, or vehicle body which is intended for carrying goods and/or persons, for road, off-road or rail transport, but excluding aircraft gro
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