Lock Out Tag Out is a well-known safety practice aimed at protecting workers from the unexcepted release of energy. The word ‘energy” includes electricity, pneumatic (pressurized air), hydraulic (pressurized oils/water), kinetic (springs under tension). In other words, anything that if released unexpectedly can cause harm to workers or equipment.
Some tips on how to effectively safe guard yourself from the unexpected release of energy. Know the equipment you are about to work on. Look at any diagrams of the equipment to identify the types of potential energy, namely air, electrical, hydraulic. Next, take a few seconds to examine the equipment. Does it have an electric motor or electrical wires? Do you see piping attached? Are there rotating parts or cams (like on a press)? Is it possible parts of the machine can move on their own or with human contact? Do you see valves on the equipment? Look for modifications to the equipment resulting in the addition of a new/different energy source.
Any one of the above parts/items denote some form of energy. There could be other sources on the machine not listed in this blog. Once you’ve identified the potential sources of energy you can now figure out how to disconnect those energy sources. Final note, if unsure that you’ve identified all potential sources of energy, ask for help. Two sets if eyes are better than injury.