The USA Government, Mine Safety and Health Administration MSHA has reported a fatal incident. On April 19, 2021, a miner stopped his haul truck in front of his personal truck to get his lunch. While standing and eating his lunch, the haul truck rolled forward, pinning the miner between the haul truck and his personal truck.
The Administration indicated the best practices:
- Do not leave mobile equipment unattended unless the controls are placed in the park position and the brake is set. NEVER use a steering column-mounted “dump brake” for parking.
- When parking mobile equipment on a grade, chock the wheels or turn them into a bank. Maintain equipment braking systems in good repair and adjustment.
- Position yourself in a safe location away from potential “danger-zone” areas.
- Train miners to safely perform their tasks.
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The NSW Resources Regulator has published a truck incident in an open cut mine. According to the report, a truck was on the workshop deadline for a defect repair. After parking the truck, the operator exited the machine and the truck rolled backwards approximately 65 metres and collided with the pump at the wash bay.
It has been identified that the parking brake had not been applied. The mine also identified that the park up hump standard had deteriorated from recent wet weather events and failed to prevent the truck from rolling away.
To respond the incident, the Regulator said: “where the ground is contoured to make vehicles fundamentally stable, mine operators must ensure the contours are to standard as per the procedure and are remediated if required.
Park brake safety interlocks should be checked as part of pre-operational inspections and should never be used as the primary means of applying the parking brake.