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Published byVirginia Atkinson Modified over 9 years ago
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Proprietary and Confidential MACHINE SAFEGUARDING Supervisor Leadership Training Series "Our loss control service is advisory only. We assume no responsibility for management or control of customer safety activities nor for implementation of recommended corrective measures. This presentation is based on information supplied by the customer and/or observations of conditions and practices at the time of the consultation. We have not tried to identify all hazards. We do not warrant that requirements of any federal, state, or local law, regulation or ordinance have or have not been met.”
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2 Proprietary and Confidential Do ’ s Actively participate by contributing –Ask questions –Share experiences –Request explanations Be supportive of your co-workers Apply what you learn to your job Pass on the information
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3 Proprietary and Confidential Objectives Discuss how to: Identify & prioritize risk Maintain/improve production without creating hazards Identify & correct hazards Reduce potential liability
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4 Proprietary and Confidential Basics of Machine Safeguarding Assess existing and residual risk –Use R3, ANSI B11 TR3 or similar method Safeguard based on: –Frequency (F) of exposure (anticipated & real) –Likelihood (L) & Severity (S) of potential injury Evaluate machines and equipment –Safeguard any part, function or process which may cause injury/illness to operator(s) or others in the vicinity Use engineering, training/educational, and motivation controls Inspect safeguards routinely –Properly installed, used & functional
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5 Proprietary and Confidential Machine Guarding General Requirements – 1910.212 One or more methods of machine guarding shall be provided to protect the operator and other employees in the machine area from hazards such as those created by: –Point of operation –Ingoing nip points –Rotating parts –Flying chips –Sparks Guards shall be affixed to the machine where possible and secured elsewhere if for any reason attachment to the machine is not possible. The guard shall be such that it does not offer an accident hazard in itself.
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6 Proprietary and Confidential Hazardous Mechanical Motions and Actions Motions Rotating –Including in-running nip points Reciprocating Transverse Actions Cutting Punching Shearing Bending
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7 Proprietary and Confidential Rotating Part Nip Points
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8 Proprietary and Confidential Rotating Part Nip Points (Cont.)
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9 Proprietary and Confidential Rotating Part Projections
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10 Proprietary and Confidential Rotating Machine Components
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11 Proprietary and Confidential Reciprocating Action
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12 Proprietary and Confidential Transverse Motion
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13 Proprietary and Confidential Cutting Motions
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14 Proprietary and Confidential Punching, Shearing & Bending
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15 Proprietary and Confidential Where Mechanical Hazards Occur Dangerous moving parts in these three basic areas need safeguarding: –Point of Operation –Power Transmission Apparatus –Other moving parts
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16 Proprietary and Confidential Requirements For All Machines Safeguarding Provisions (Guards & Devices) Controls (Types, Location, Labeling) Disconnects – Refer to National Electric Code® (Not required for plug & cord equipment) Starters (Magnetic/Anti- Restart)
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17 Proprietary and Confidential Requirements - Power Transmission Covers Up to 7’ from floor or work platform –Except for specific belts
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18 Proprietary and Confidential Belt Guarding Exclusions OSHA 1910.219 Power transmission belts operating at 250 feet per minute of less and that are: –Flat belts 1 in. or less in width –Flat belts 2 in. or less in width, which are free from metal lacings or fasteners –Round belts ½ in. or less in diameter –Single strand V-belts, the width of 13/32/in. or less Vertical and inclined belts, if not more than 2 1/2 in. wide and running at a speed of less than 1000 feet per minute and is free from metal lacings or fastenings –May be guarded with a nip-point belt ad pulley guard
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19 Proprietary and Confidential Requirements - Anchoring Fixed equipment –Designed for securing
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20 Proprietary and Confidential Requirements – Control Reliability Use of two or more identical (or dissimilar) components, modules, devices or systems verifying (monitoring) the proper operation of each, to ensure the performance of the safety functions
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21 Proprietary and Confidential Requirements for Safeguards Prevent contact between the worker and the point of operation Securely fastened and require tools to remove Prevent objects from falling into moving parts Create no new hazards Create no interference that hinders worker’s task Allow for safe lubrication/maintenance
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22 Proprietary and Confidential Machine Safeguarding Methods - Guards Fixed Interlocked Adjustable Self-adjusting
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23 Proprietary and Confidential Fixed Guard
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24 Proprietary and Confidential Interlocks
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25 Proprietary and Confidential Adjustable Guard
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26 Proprietary and Confidential Self-Adjusting Guard
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27 Proprietary and Confidential Machine Safeguarding Methods - Devices Presence Sensing –Photoelectrical (optical) –Radio Frequency (capacitance) –Electromechanical Pullbacks Restraints Safety Controls –Two-Hand Trip –Two-Hand Control Safety Mats Gates –Types A & B
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28 Proprietary and Confidential Presence Sensing
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29 Proprietary and Confidential Pullbacks
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30 Proprietary and Confidential Restraints
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31 Proprietary and Confidential Two Hand Trip
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32 Proprietary and Confidential Two Hand Control
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33 Proprietary and Confidential Safety Mats
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34 Proprietary and Confidential Safety Gates (Type A & B)
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35 Proprietary and Confidential Machine Safeguarding Methods – Feeding/Ejection Feeding and ejection methods to improve safety for the operator –Automatic feed –Semi-automatic feed –Automatic ejection –Semi-automatic ejection –Robots
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36 Proprietary and Confidential Machine Safeguarding Methods – Location/Distance
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37 Proprietary and Confidential Robots
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38 Proprietary and Confidential Machine Safeguarding Methods – Miscellaneous Aids Awareness barriers Miscellaneous protective shields Hand-feeding tools and holding fixtures
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39 Proprietary and Confidential Awareness Barriers
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40 Proprietary and Confidential Shields
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41 Proprietary and Confidential Hand Tools
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42 Proprietary and Confidential Summary Evaluate machines and equipment Assess existing and residual risk Safeguard based on: –Frequency (F), Likelihood (L) & Severity (S) Use engineering, training/educational, and motivation controls Inspect machines, equipment and safeguards routinely
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