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Training Information Promoting Safety
Weekly Safety Training
“Fly Away”
TIPS for the week of February 7, 2005
Recently, an employee was injuredwhile changing cutting edges on a scraper.
The hook came loose and flew ashort distance, striking the person
in the head.
Full recovery is expected, but we needto learn from this accident to prevent
a “Flying Hook” reoccurrence.
After careful investigationand analysis, this reenactment
demonstrates what webelieve happened.
Here you see a hookin an eyebolt,
properly tensionedand connected.
Here yousee the same
connection with thechain allowed to
go slack.
In the accident, theeyebolt was attachedto the cutting edges,and the edges were
also lowered to createthis same slack position.
In this picture, anoverhead crane is
lifting the chain, andyou see the hook
rotate.
Again, no one saw thehook rotate into this
position, but webelieve this is what
happened.
As the chain goes up,the eyebolt actually
opens the safety latch.
The latch is onlypartially open, but
that’s enough.
As more tension isapplied, the hook
slides, opening thelatch even further.
With the hookcompletely released,we believe it caught
on the side of theeyebolt.
The key lessons to be learned:
Check and recheck all riggingbefore and during each lift.
Stand well back from all lifts,and if guidance is necessary,
use a tagline.
Before making a lift, makesure the rigging is safe and the
appropriate type for the lift.
Most importantly…
When making this type oflift, as you snug up the load,
make sure the rigging isin the proper location.
Don’t ASSUME, makesure the eyebolt is properlycradled in the hook before
the lift begins!