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MACHINERY CAN BITE!Man & Machine Interface“Manage the Risks”
Alan Cook CMIOSH MIIRSMRegional Compliance Manager
What is a Machine?
“An assembly fitted with or intended to be fitted with adrive system other than directly applied human oranimal effort, consisting of linked parts or components,at least one of which moves, and which are joinedtogether for a specific application”.
Machinery Hazards?
• Crushing points• Shearing points• Cutting or severing action• Entanglement – Drawing in• Impact, ejection or injection• Stabbing or puncture movements• Friction or abrasion
The Hazards?
Key Legislation:The Supply of Machinery (Safety) Regulations
• To ensure that Essential Health & Safety Requirements (EHSRs) are fulfilled;
• A Technical file is prepared;• Appropriate conformity assessment is carried out;• A “EC Declaration of Conformity” is given;• CE Marking is affixed, and;• Instruction for safe use are provided. European Conformance CE mark
Responsibilities of the Manufacturer or their Authorised Representative:
Key Legislation – Supply of MachineryEssential Health & Safety Requirements (EHSRs)• Inherently Safe Design – Where possible the design itself will prevent any hazards ‐ where this is not possible;
• Additional Protection Devices, e.g. Guards, barriers and interlocked access points etc. must be used.
• Any residual risk must be contained by Personal Protective Equipment and/or Training (the supplier must specify what is appropriate).
Protective Measures – Guards
FIAT
ixed 1st
nterlocking 2nd
djustable 3rd
wo‐handed control 4th
Key Legislation – Provision & Use of Work Equipment Regulations (PUWER)
• Every employer shall ensure that measures are taken to prevent access to any dangerous part of machinery or to any rotating part, or
• To stop the movement of any dangerous part of machinery or rotating part before any part of a person enters a danger zone.
Regulation 11 ‐ Dangerous parts of machinery
In Court – Selection of machinery cases heard over last 7 months!
Wet Paint Syndrome ‐ tempted?
Ever compromised on machinery safety?
Man & Machine Interface• Operation (all modes/functions)• Normal stoppages & restart• Unscheduled stoppages (control failure or jam)• Fault finding & troubleshooting• Cleaning & housekeeping• Planned maintenance & repair• Unplanned maintenance & repair• Close proximity working
Control of Hazardous Energy
Control of Hazardous Energy
Hazardous Energy –Main Types• Mechanical ‐ energy contained in an item under tension.
• Electrical ‐ live through circuits or it can also be stored in batteries or capacitors.
• Hydraulic ‐ energy stored within a pressurised liquid.• Pneumatic ‐ energy stored within pressurised air.• Gravitational ‐ energy related to the mass of an object
and its distance to fall.
Control of Hazardous Energy – Why?To maintain worker safety by preventing:• Unintended release of stored energy.• Unintended start‐up.• Unintended motion.• Contact with a hazard when guards are removed or safety devices have been by‐passed.
Don’t assume it couldn’t happen to you!
How would you manage the risk?
Lock‐off & Tag‐out (LOTO)
Control of Hazardous Energy – Hydraulic & Gravitational.
Do you rely on check/burst valves alone? Or in addition to a physical prop?(not always supplied by the manufacturer)
Machinery Risk Reduction
HIGH
LOW
RISK
Initial DesignDesign Out Hazards Protective
MeasuresSafety Controls
InformationTraining
OrganisationSafe Systems of
Work
Risk Reduction
Risk Reduction
Risk ReductionRisk Reduction
Risk Reduction
Operator Manuals
Compliance Tools – Happy to share!
And Finally – Don’t’ try this at home!
Any Questions