As the customer and the victim were manually moving the gantry crane, it began to roll freely.
The customer was having difficulty moving the loaded crane and was aided by the victim. This gantry crane had four automobile wheels with pneumatic tires installed on the bottom of the horizontal supports allowing the whole crane to traverse. A gantry crane is a type of crane which lifts objects by a hoist.
On the incident day, a wrecking yard customer was using a manually operated portable gantry crane, built by a local metal fabrication shop, to remove an engine and transmission from a salvaged vehicle. In August of 2003, a 16-year-old male employee died when he was struck by a portable gantry crane used as an engine hoist while working at a wrecking yard / auto parts company in western Washington State.
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