Sets out technical and safety requirements for power presses intended to work cold metal or material partly of cold metal. Does not apply to brake presses, guillotines, attaching fasteners, straightening, turret punch pressing, extruding working hot metal, metal powder compaction or printing presses.
Table of contents
Header
About this publication
Preface
1 Scope and general
1.1 Scope
1.2 Objective
1.3 Referenced documents
1.4 Definitions
2 Hazards
2.1 General
2.2 Risk assessment
3 Safety requirements and measures
3.1 Introduction
3.2 Basic design considerations
3.2.1 Prevention of unintended gravity fall during production
3.2.1.1 General
3.2.1.2 Mechanical restraint device
3.2.1.3 Hydraulic restraint device
3.2.1.4 Minimum restraint devices
3.2.1.5 Checking of restraint function
3.2.1.6 Prevention of unintended stroke
3.2.2 Prevention of gravity fall during maintenance or repair
3.2.2.1 Mechanical restraint device
3.2.2.2 Large presses
3.2.2.3 Additional restraint devices
3.2.3 Hydraulic and pneumatic systems—Common features
3.2.3.1 General
3.2.3.2 Piping
3.2.3.3 Pressure drop
3.2.3.4 Support of valves
3.2.3.5 Valve return
3.2.4 Hydraulic systems
3.2.4.1 Gravity descent
3.2.4.2 Accumulators
3.2.4.3 Circuit protection
3.2.4.4 Protection on downstroking presses
3.2.5 Pneumatic systems
3.2.5.1 Lubrication
3.2.5.2 Silencers
3.2.6 Electrical systems
3.2.6.1 General
3.2.6.2 Emergency stop
3.2.6.3 Two-hand controls
3.2.6.4 Enclosure protection
3.2.6.5 Wiring
3.3 Mechanical hazards in the tools area
3.3.1 General
3.3.2 Safeguards
3.3.3 Manual loading
3.3.4 Control system category
3.3.5 Access from more than one side
3.3.6 Single use operation
3.3.7 Closed tools
3.3.8 Fixed guards
3.3.9 Interlocking and control guards
3.3.10 Using an interlocking guard as a control guard
3.3.11 Guard locking
3.3.12 Early opening
3.3.13 Electro-sensitive protective equipment
3.3.14 Two-hand controls
3.3.15 Guards without guard locking
3.3.16 Hold-to-run controls
3.3.17 Other requirements
3.3.17.1 Securing tools
3.3.17.2 Fastenings
3.3.17.3 Manual adjustment
3.3.17.4 Handling device
3.3.18 Hold-to-run controls for handling device
3.3.19 Release of trapped persons
3.4 Control and monitoring system
3.4.1 Control and monitoring functions
3.4.1.1 Safety functions
3.4.1.2 Resetting of control function
3.4.2 Specific protective devices
3.4.2.1 Scope
3.4.2.2 Press control
3.4.2.3 Power interlocking
3.4.3 Muting
3.4.3.1 General
3.4.3.2 Mute point setting
3.4.3.3 Guard muting
3.4.4 Programmable electronic systems, programmable pneumatic systems and safety relatedfunctions
3.4.5 Selector switches
3.4.5.1 Provisions of selector switches
3.4.5.2 Single selector
3.4.5.3 Additional selector switches
3.4.5.4 Multiple operators
3.4.5.5 Selectors for safety function
3.4.6 Position switches
3.4.7 Control devices
3.4.7.1 Shrouding
3.4.7.2 Emergency stop
3.4.7.3 Start button on pedestals or pendants
3.4.8 Valves
3.5 Toolsetting, trial strokes, maintenance and lubrication
3.5.1 General
3.5.2 Slide or ram movement
3.5.3 Trial strokes
3.5.4 Manually adjustable feeders
3.5.5 Using protection devices
3.5.6 Movable guard
3.5.7 Two-hand controls
3.5.8 Hold-to-run devices
3.5.9 Inching
3.5.10 Interface
3.5.11 Maintenance
3.6 Other mechanical hazards
3.6.1 Power transmission
3.6.2 Unlocking
3.6.3 Ancillary device
3.6.4 Ejection hazards
3.7 Slips, trips and falls
3.8 Protection against other hazards
3.8.1 Electrical hazards
3.8.2 Thermal hazards
3.8.3 High pressure fluid ejection hazards
3.8.4 Hazards generated by noise
3.8.4.1 Design and construction
3.8.4.2 Sources of noise
3.8.4.3 Information
3.8.5 Hazards generated by vibration
3.8.6 Hazards generated by materials and substances
3.8.6.1 Hazardous substances
3.8.6.2 Processing hazardous substances
3.8.7 Hazards generated by neglecting ergonomic principles
