The primary objective of this standard is to eliminate, control or reduce hazards to individuals associated with Multiple Spindle Automatic Bar and Chucking Machines by establishing requirements for the design, construction, installation, commissioning, operation, maintenance and decommissioning of these machines. To accomplish this objective, responsibilities have been assigned to the supplier (e.g., manufacturer, modifier, distributor, rebuilder and integrator), the user, and individuals in the working environment.

Table of Contents

Foreword
Effective Date
Context (how to read/use this document)
Inquiries
Development
Introduction
Organization and Application of B11 Documents
1 Scope
1.1 Included machines
1.2 Excluded Machines
1.3 Purpose
2 Normative references
2.1 Informative references
3 Definitions
4 Responsibility
4.1 Supplier responsibilities
4.2 User responsibilities
4.3 Integrator / modifier / rebuilder responsibilities
4.4 Personnel responsibilities
5 Risk assessment process
6 Design and Construction
6.1 General
6.1.1 Hazards to personnel other than point-of-operation
6.1.2 Mounting
6.1.3 Hazards to personnel associated with broken or falling components
6.1.4 Hazards to personnel associated with workpiece feeding and loading devices
6.1.5 Cranks, levers or control handwheels
6.1.6 Power clamping workpiece holding devices on chuck-type machines
6.1.7 Contact with high-temperature machine components
6.1.8 Contact with hazardous edges, corners and projections
6.1.9 Chips and coolant
6.2 Electrical requirements
6.2.1 Stopping–performance monitor (brake monitor)
6.2.2 Disconnect switch
6.2.3 Stop functions
6.2.4 Emergency Stop
6.2.5 Stop control
6.2.6 Motor–start button
6.2.7 Motor starter
6.2.8 Voltage
6.2.9 Grounds
6.3 Control Systems
6.3.1 Performance of the safety-related function(s)
6.3.2 Cycle actuating–control system
6.3.3 Mode selection
6.3.4 Cycle–control system valve failure
6.3.5 Clutch/brake air–valve exhaust systems
6.3.6 Machine drive–motor interlock
6.3.7 Engaging–method failure
6.3.8 Springs
6.4 Hydraulics and pneumatics
6.4.1 Circuitry
6.4.2 Accumulators
6.4.3 Flexible hoses
7 Layout, installation,testing and start-up
7.1 General
7.2 Layout
7.3 Installation
7.3.1 Floor loading
7.3.2 Anchoring
7.3.3 Electrical requirements for installation
7.3.4 Hazardous energy control
7.3.5 Lighting
7.4 Testing and start-up
8 Safeguarding
8.1 Hazards associated with operation and maintenance
8.2 Methods of safeguarding
8.2.1 Fixed guards
8.2.2 Movable guards
8.2.3 Engineering controls – devices
8.2.4 Shields
8.2.5 Awareness barriers
8.2.6 Awareness devices
8.3 Span of control
8.3.1 Layout analysis
8.3.2 Level of safety performance
8.3.3 Identification
9 Set up, operation and maintenance
9.1 General
9.2 Machine set-up procedures
9.3 Operation
9.4 Maintenance
9.4.1 General
9.4.2 Maintenance inspections
9.5 Supervision
9.6 Hazardous energy control
9.7 Initiation of normal operations
9.8 Safety signs
9.9 Personal protective equipment (PPE)
10 Training
10.1 General
10.2 Training elements
10.2.1 Training programs
10.3 Operator training
10.4 Maintenance personnel training
10.5 Supervisor training
10.6 Retraining
11 Decommissioning process
11.1 Supplier responsibilities
11.2 User responsibilities
11.3 Modifier responsibilities
11.4 Decommissioning task
11.5 Control of hazardous energy
11.6 Layout
Annex A – Examples of single and multiple spindle automatic bar and chucking machines
Annex B – Performance of the safety function(s)
Annex C – General guidelines for operator training

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