The accidents During a water main installation, a crew member entered a newly dug lateral excavation, preparing to install pipe. Using a quick coupler, an excavator operator changed buckets and swung the machine over to the trench to continue digging on the main line. The bucket detached and fell into the excavation, killing the man in the trench. The bottom lines While quick couplers allow instant attachment changes, users should always inspect them to ensure they have been properly engaged and locked prior to use.
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