EN 1756-1:2001+A1:2008

Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 List of hazards
5 Safety requirements and/or protective measures
  5.1 General requirements
  5.2 Working area
  5.3 Manual effort
  5.4 Operating speeds
       5.4.1 General
       5.4.2 Vertical speed
       5.4.3 Closing and opening speeds
       5.4.4 Tilting speed
  5.5 Load stability
       5.5.1 Tilt angle
       5.5.2 Stop devices
  5.6 Limitations of travel
  5.7 Layout of wires and pipes
  5.8 Unauthorised operation
  5.9 Isolation of energy sources
  5.10 Tail lift stowage
       5.10.1 Indication
       5.10.2 Security
  5.11 Crushing and shearing
  5.12 Structure working coefficients
  5.13 Platform
       5.13.1 Surface
       5.13.2 Bluntness of edges
       5.13.3 Tail lift used as a link bridge
       5.13.4 Visibility of platform
  5.14 Drive systems
       5.14.1 Unintentional movements
       5.14.2 Mechanical suspension systems
       5.14.3 Hydraulic systems
  5.15 Safety devices
       5.15.1 Safety mechanisms
       5.15.2 Springs inside safety devices
  5.16 Loading control
       5.16.1 Prevention of lifting excessive loads
       5.16.2 Excessive moment
  5.17 Control devices
       5.17.1 Hold-to run principle
       5.17.2 Logic
       5.17.3 Unintentional operation
       5.17.4 One control device for several
              movements
       5.17.5 Several control devices for one
              movement
  5.18 Control positions
       5.18.1 Multiple control positions
       5.18.2 Location of control positions
6 Optional equipment
7 Verification of the safety requirements and/or
  measures
8 Information for use
  8.1 General
  8.2 Tail lift used as a link bridge
  8.3 Inherent risks associated with improper use
  8.4 Location and nature of information for use
       8.4.1 Marking on the tail lift
       8.4.2 Handbooks
       8.4.3 Inspection record
Annex A (informative) Tail lift mechanisms and types
      A.1 Mechanisms
          A.1.1 Parallelogram
          A.1.2 Column
          A.1.3 Telescopic
      A.2 Types
          A.2.1 Conventional: (full and part width)
          A.2.2 Folding platform
          A.2.3 Retractable
          A.2.4 Rotary
          A.2.5 Door mounted
          A.2.6 Inset
          A.2.7 Internally mounted
Annex B (normative) Crushing and shearing
      B.1 General
      B.2 Platform lifting and lowering
          B.2.1 Two-hand control
          B.2.2 Two-foot control
          B.2.3 Toe guard
          B.2.4 Hinged foot protector
          B.2.5 Safety cut-out
          B.2.6 Automatic toe protector
      B.3 Platforms capable of lifting above vehicle
          floor level
      B.4 Platform closure
          B.4.1 Two-hand control
          B.4.2 Safety cut-out
Annex C (informative) Structure and drive system
Annex D (normative) Drive systems - Steel wire ropes
        and chains
      D.1 Recommended specifications of steel wire
          ropes
      D.2 Dimensions of pulley grooves
      D.3 Flare angle
      D.4 Fleet angles
      D.5 Pitch circle
Annex E (normative) Examples of controls logic
Annex F (informative) Marking
Annex G (informative) Unintentional operation
Annex H (normative) Verification by the installer
      H.1 Compatibility between the lift and the
          vehicle
      H.2 Static test
          H.2.1 Deformation
          H.2.2 Drift
      H.3 Dynamic test
      H.4 Test of operation and safety function
      H.5 Test to verify that the tail lift
          cannot lift excessive load
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 98/37/EC
Annex ZB (informative) Relationship between this European
         Standard and the Essential Requirements of EU
         Directive 2006/42/EC
Bibliography

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.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.NOTEA 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 loadsThis 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