Development and Application of ISO 4413 – General Rules and ...

Safe and Efficient Hydraulic Systems Review of ISO 4413 Hydraulic Fluid Power – General Rules and Safety Requirements for Systems and Their Components Jerry Carlin Eaton Hydraulics November 20, 2013

Evolution of Hydraulic System Standards for Stationary Industrial Equipment ISO 4413-2010

General Rules and Safety Requirements for Stationary Industrial

and Mobile Equipment

NFPA T2.24.1-2000 supplement ISO 4413-1998 ANSI/(NFPA/JIC) T2.24.1-1991 NFPA T2.24.1-1990 ISO 4413 General Rules -1979 JIC Hyd. Standard H-1 1973

Goals for the Revision of ISO 4413 and ISO 4414 by ISO TC131/SC9 • Integrate safety provisions of EN982:1996. Comply with Machinery Directive 2006/42/EC. • Expand scope to include mobile equipment • Concurrently revise ISO 4413 and ISO 4414, maintaining common style and structure • Integrate into ISO 4413 significant provisions of the NFPA T2.24.1 supplement and reservoir standards

ISO 4413 Component Guidance for a More Efficient Hydraulic System Definition of the equipment and system environment • Site conditions checklist for stationary equipment • Operating environment for mobile equipment • Component specification sheet for stationary eqpt. Installation and maintenance data • Component and circuit identification • Preventive maintenance

ISO 4413 Guidance for a More Efficient Hydraulic System • Guidelines for effective sealing • Pump application tips • Actuator application tips • Valves and controls • Reservoirs and fluids • Fluid conveyance • Fluid conditioning

ISO 4413 Clause 5 General Rules and Topics Covered • System operation and function • Control of movements • Unintended pressures • Control of noise, leakage, temperature • Installation, transportation, handling • Maintenance

ISO 4413 is a Type B Standard in the Machinery Safety Standards Hierarchy • Type A standards (basic safety)

Basic concepts and principles applicable to all machinery

• Type B standards (generic safety standards)

One safety aspect or type of safeguard applicable to a wide range of machinery

• Type C standards (machine safety standards)

Detailed requirements for a particular machine or group of machines

When a type C standard deviates from one or more provisions of a type B standard, the type C standard takes precedence. (See ISO 12100-1 for complete definitions)

ISO 4413 Clause 5 Safety Requirements • Consider all intended system operation and use Includes foreseeable misuse • Perform a risk assessment in accordance with ISO 14121-1 • Complete a control system risk assessment per ISO 13849-1 or acceptable alternative

Risk Assessment Based on ISO 14121-1 Use the Type C standard for the machine as a template, if one exists Determine limits of the machinery Identify Hazards Estimate Risks Evaluate Risks Risk adequately reduced?

No Eliminate or Reduce Risks

Yes

END

Categories of Hazards Addressed in ISO 4413 Annex A • • • • • • • •

Assembly Installation Adjustment Uninterrupted system operation Ease and economy of maintenance Reliable operation in all intended uses Energy efficiency Environment

Actions to Address Identified Risks Follow ISO 12100-1 hierarchy

1. Inherently safe design measures

(Eliminate risks by design where possible)

2. Safeguarding and complementary protective measures 3. Information for use from the supplier

Warning signs, signals, or devices at the machine Warnings in the instruction manual

4. Protective measures taken by the user

Procedures, supervision, permit to work systems Additional safeguards Training, use of PPE

Final Sections and Content of ISO 4413 6 Verification of Safety Requirements • •

System verification (Identification, connections, function, no leakage) Through inspection and/or testing

7 Information for Use • • • •

Documentation and identification Maintenance and operating data Certificates and safety data sheets, as required Special requirements for gas loaded accumulators

8 Identification Statement •

Voluntary conformance declaration

ISO 4413 Annexes Annex A – List of Significant Hazards •

Cross-referenced to ISO 12100

Annex B - Hydraulic Equipment Data Form • •

Designed for Stationary Industrial Systems Useful for Mobile Systems as well

Important ISO Reference Standards on Safety of Machinery ISO 14121-1 Principles of risk assessment ISO 12100-1 Basic concepts, general principles for design – Part 1: Basic terminology, methodology ISO 12100-2 Basic concepts, general principles for design – Part 2: Technical principles ISO 13849-1 Safety related parts of control systems Part 1: General principles for design ISO 13849-2 Safety related parts of control systems – Part 2: Validation