Mechanical Hazards Part 1 - University College Dublin
Transcript of Mechanical Hazards Part 1 - University College Dublin
Mechanical Hazards – Part 1 Peter Coulahan
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Mechanical Hazards – Part 1
Peter Coulahan University College Dublin Safety Officer
Module OSH10010!
Part 1 Mechanical Hazards
Part 2 Mechanical Hazards: Practical risk reduction measures
Mechanical Hazards
Learning Outcomes Describe the different types of hazards and
risks associated with machines
Explain, and provide the rationale for, the methods used to reduce the risk of injury in the use of machines
Be able to identify common hazards associated with machines
Assess whether suitable safety devices are fitted and are operating safely
Part 1 1. Definitions
2. Recognising mechanical hazards
3. Non mechanical hazards
Definitions For the purpose of this presentation a machine or a mechanical device is considered to be a device that performs one or more functions, e.g. cuts wood; moulds plastics; carries product on a conveyor, etc. When used in the workplace such machines become work equipment.
Definitions When we consider mechanical hazards
we are concerned with the hazards posed by
the moving parts of a machine / work equipment.
For the purpose of this presentation mechanical
hazards are defined as those hazards that are
associated with the moving parts of a machine.
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Recognising Mechanical Hazards If a machine looks dangerous then it probably is………..
Recognising Mechanical Hazards Can I come into contact with a moving part?
Can I become entangled in a moving part?
Can I become trapped between moving parts?
Can I be struck by a part or product of the machine?
Recognising Mechanical Hazards In Running Nips
These are usually associated with belt drives, chain drives, rolling drums and conveyor systems.
Recognising Mechanical Hazards In Running Nips
Recognising Mechanical Hazards Entanglement Hazards
These occur when there is a risk that clothing
or a body part could become entangled in a
moving part.
The risks increase as the speed of the moving
part increases and also as its surface
roughness increases.
Recognising Mechanical Hazards Entanglement Hazards
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Recognising Mechanical Hazards Entanglement Hazards Power Take Off (PTO)
Recognising Mechanical Hazards Shearing Traps
These types of hazards
are found where a trap
point exists between a
moving part and a
stationary part of a
machine.
Recognising Mechanical Hazards Crushing And Impact Hazards
These types of hazards
exist where there is a
potential for a person to
be struck or crushed by
a machine.
Recognising Mechanical Hazards Cutting / Contact Hazards
These types of hazards
exist where body parts
can come into contact
with sharp or rough
moving parts.
Recognising Mechanical Hazards Cutting / Contact Hazards
Mechanical Hazard Injury
A worker using this machine became entangled in the protruding bolts and was dragged into and then thrown over the machine resulting in his left forearm being ripped off at the elbow.
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Mechanical Hazard Fatality
A worker died when he became entangled between the cylinder and the feed on this machine. ‘X’ marks the spot where he was standing when he was pulled into the machine.
Non Mechanical Hazards
Non Mechanical Hazard!
Source! Consequences!
Hot and cold parts! Engines, freezers, boiler plant, furnaces!
Burns, frost bite, heat stress, heat stroke!
Electrical parts !
Generators, electrical motors, all electrically operated plant!
Shocks, burns, electrocuFon!
RadiaFon! Plant that produces electromagneFc waves, welding arc flashes, laser beams!
Burns, cancer, damaged eye-‐sight, blindness!
Non Mechanical Hazards
Non Mechanical Hazard!
Source! Consequences!
Toxic exhaust, toxic content leakage and dangerous material spills!
Plant that exhausts toxic fumes as a by-‐product, plant that uFlises toxic materials!
Toxic effect injuries such as burns, dermaFFs, respiratory illnesses, cancer!
Pressurised gases or liquids!
Hydraulic lines! PenetraFon of skin by hazardous liquids or gases, generaFon of air bubbles in bloodstream!
VibraFon and noise! VibraFng type machines, heavy engineering plant!
VibraFon white finger, hearing loss!
Consider this scene……
Part 1 Mechanical Hazards
Part 2 Mechanical Hazards: Practical risk reduction measures
Mechanical Hazards