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P-R-O-P-E-R MECHANICAL ENERGY LOCK-OUT
Mechanical Energy
may be released at the point of operation, or where two
or more points of operation come together. This is where you might get caught. In
most cases
blocking mechanical energy is done in addition to shutting off the primary source,
such as electrical, hydraulic and pneumatic. Some examples include inserting
restraining pins or bars in the point of operation or block under a lift. In cases
where these blocks to mechanical energy are not locked in place, they should not
be the primary means of shutting off energy. Mechanical energy can also be
stored.
1 Gravity
Things that are up can fall of their own weight. Pins or blocking may be required.
2 Springs
BOING! can spell DEATH Release tension or compressed springs by using
methods prescribed by the equipment manufacture
3 Tensions
Things under tension can spring in. Release tension by using prescribed method
by equipment manufacturer
P Process Shut Down
Shut down the process
R Recognize Energy Type
Recognize all forms of energy – Need to be shut off, such as electrical and
Mechanical Mechanical is usually a secondary energy source closest to point of
operation
O Off! -Shut off all Power Controls
Such as switches, valves and other isolating devices
P Place Lock-Out Device, Lock and Tag
Place lock on the isolating device and sign tag
E Energy - Release Stored Energy
Release, spring or tension to achieve, zero energy state
R Recheck Controls and Return To “OFF” Setting
