SN EN 1756-2 : 2004 + A1 2009

Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 List of hazards
5 Safety requirements and/or measures
  5.1 General requirements
       5.1.1 Sizes and capacities of tail lifts
  5.2 Working area
       5.2.1 Lighting
       5.2.2 Hand rails
  5.3 Manual effort
  5.4 Operating speeds
       5.4.1 General
       5.4.2 Vertical speed
       5.4.3 Opening and closing speeds
       5.4.4 Tilting speed
  5.5 Passenger stability
       5.5.1 Rotary lifts
       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
       5.13.4 Protection of pedestrians
  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 Controls for the use of disabled passengers
       5.17.2 Hold-to-run principle
       5.17.3 Logic
       5.17.4 Unintentional operation
       5.17.5 One control device for several movements
       5.17.6 Several control devices for one movement
  5.18 Control positions
       5.18.1 Multiple control positions
       5.18.2 Location of control positions
6 Compatibility of lift and vehicle
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 Rotary
          A.2.2 Inset
          A.2.3 Step
          A.2.4 Internally mounted
Annex B (normative) Crushing and shearing
      B.1 General
      B.2 Platform lifting and lowering
          B.2.1 Minimum safety distances
          B.2.2 Hinged foot protector
          B.2.3 Safety cut-out
          B.2.4 Reversing mechanism
      B.3 Platforms capable of lifting above vehicle floor level
      B.4 Platform closure
Annex C (informative) Prevention of wheelchairs rolling unintentionally
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 (informative) Marking
Annex F (normative) Verification by the installer
      F.1 Compatibility between the lift and the vehicle
      F.2 Static test
          F.2.1 Deformation
          F.2.2 Drift
      F.3 Dynamic test
      F.4 Test of operation and safety functions
      F.5 Test to verify that the tail lift cannot lift excessive load
Annex G (informative) Overloads onto a platform at vehicle floor level
Annex ZA (informative) Relationship of this European Standard with
         EC Directives
Bibliography

Describes the safety requirements for design of tail lifts.