EN 474-12:2006+A1:2008

Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions, symbols and abbreviated terms
4 List of additional significant hazards
5 Safety requirements and/or measures
  5.1 General
  5.2 Access
  5.3 Operator's station
       5.3.1 General
       5.3.2 Roll-over protective structures (ROPS)
       5.3.3 Operator's protective guard
       5.3.4 Operator's seat, vibrations
  5.4 Operator's controls and indicators
       5.4.1 Controls for driving and steering
       5.4.2 Warning indicator
  5.5 Steering
  5.6 Swing brakes
  5.7 Lift system
       5.7.1 Force controlled operation (lifting, lowering)
       5.7.2 Free fall operation
       5.7.3 Switch-over
       5.7.4 Boom
       5.7.5 Ropes
       5.7.6 Rope drum, rope pulley
  5.8 Limiting devices
       5.8.1 Load moment limiting device
       5.8.2 Lift limiting switch
       5.8.3 Limit switch for the boom hoist system
  5.9 Calculation of the lift capacity
       5.9.1 Calculation method
       5.9.2 Rated lift capacity table in object handling
              application
  5.10 Requirements of safety related parts of the
       control system
  5.11 Stability
       5.11.1 General
       5.11.2 Stability in different applications
       5.11.3 Dragline bucket
       5.11.4 Grab and front shovel
       5.11.5 Object handling application
  5.12 Cable excavator with electrical power source
6 Verification of safety requirements/measures
7 Information for use
  7.1 Operation manual
Annex A (normative) - List of additional significant
        hazards - Cable excavators
Annex B (normative) - Requirements for cable excavator
        swing brakes
      B.1 General
      B.2 Terms and definitions
      B.3 Minimum performance
          B.3.1 Swing drive system
          B.3.2 Swing service brake
          B.3.3 Swing parking brake
      B.4 Conditions for testing the swing service brake
      B.5 Test report
Annex C (informative) - Illustrations
      C.1 Standard applications
          C.1.1 Crawler type cable excavator with lifting
                equipment
          C.1.2 Crawler type cable excavator with dragline
                equipment
          C.1.3 Crawler type cable excavator with grab
                equipment
      C.2 Special applications
          C.2.1 Crawler type cable excavator with hole
                drilling equipment (casing oscillator)
          C.2.2 Crawler type cable excavator with piling
                equipment (hydraulic or diesel hammer)
          C.2.3 Crawler type excavator with wall cutter
                equipment (diaphragm wall grab)
      C.3 Wheel type cable excavator in transport
          position for road travelling
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 part of EN 474 deals with all significant hazards, hazardous situations and events relevant to cable excavators as defined in EN ISO 6165:2006, when they are used as intended and under conditions of misuse which are reasonably foreseeable by the manufacturer (see Clause 4).This European Standard applies also to cable excavators, their undercarriage and upper-structure, if intended for use in combination with other equipment or attachment, such as drill rigs, pile driving and extracting equipment and moving equipment (e.g. rail track, walking legs, pontoon, ship) or stationary undercarriage. This European Standard is not dealing with the specific hazards due to these additional equipment or attachment.NOTEFor these additional equipment or attachment, relevant specific European Standards should be considered where available, for example:-for pile driving and extracting equipment: EN 996:1995;-for drill rigs: EN 791:1995.The requirements of this part are complementarily to the common requirements formulated in EN 474-1:2006.This part does not repeat the requirements from EN 474-1:2006, but adds or replaces the requirements for application for cable excavators.This part specifies the appropriate technical measures to eliminate or reduce risks arising from the significant hazards, hazardous situations and events during commissioning, operation and maintenance of the machinery in the scope.This European Standard is not applicable to cable excavators manufactured before the date of publication of this European Standard by CEN.