ONORM EN 1756-1 : 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 Tail lift used as a link bridge
        5.13.3 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 Drift57
      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 of this
         European Standard with EU Directives
Bibliography