The Mine Safety and Health Administration USA (MSHA) issued a Serious Accident Alert following an accident at a limestone quarry involving a crusher. A miner was adjusting the setting on a jaw crusher when a mechanical failure occurred on the adjusting ram hydraulic hose. The failure allowed the jaw adjusting mechanism to close on the miner’s hands in the adjusting shim area, causing crushing injuries to both hands. (Source: Aggregates Manager)
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