Safety alert: Hydraulic hoist cylinder failure on Komatsu 680-E trucks

Tina Grady Barbaccia - Sep 14, 2011

A Komatsu 685-E haul truck was operating at a surface coal mine when the bolts for the third stage piston bearing retainer from both Hoist Cylinders failed, allowing the dump bed to fall abruptly onto the frame of the truck. ...

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