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Hispanic quarry supervisor struck by machine part during maintenance.

New Jersey Department of Health
NIOSH 2004 Feb; :1-11
On March 29, 2003, a 44-year-old Hispanic stone quarry supervisor was killed when he was struck by a machine part while servicing a rock crushing machine. The victim and two workers were working during the weekend when the quarry was shut down. They were working on a rock crusher, a large machine that produced gravel by crushing rocks that had been blasted from the side of the quarry. On this day, the crew was making an adjustment to the crusher that would change the size of the crushed rock. This required taking off a retaining clamp and removing a large metal shim that determined the size of the crushed rock that the machine produced. The machine had been shut down, and it was quiet enough for the crew to talk easily to each other. The victim was standing under the shim assembly as his co-worker removed the two large nuts that held down the retaining clamp. As he loosened the second nut, the worker felt something was wrong and asked the victim if he should continue. The victim said to continue, and the worker removed the last bolt, releasing a 1,000 pound machine part. It struck the victim on the head, killing him instantly. NJ FACE investigators recommend following these safety guidelines to prevent similar incidents: 1. Employers should develop, implement, and enforce written procedures for servicing machinery. 2. Employers should conduct a job hazard analysis of all work activities with the participation of the workers. 3. Employers should consider providing written signs and training materials in the native language of their employees.
Accident-analysis; Accident-potential; Accident-prevention; Accidents; Injuries; Injury-prevention; Safety-education; Safety-equipment; Safety-practices; Safety-measures; Traumatic-injuries; Region-2; Work-practices; Training; Work-analysis; Work-environment; Work-performance; Machine-operation; Safety-programs; Occupational-safety-programs
Publication Date
Document Type
Field Studies; Fatality Assessment and Control Evaluation
Funding Type
Cooperative Agreement
Fiscal Year
NTIS Accession No.
NTIS Price
Identifying No.
FACE-03NJ021; Cooperative-Agreement-Number-U60-CCU-207088; Cooperative-Agreement-Number-U60-OH-008345
SIC Code
Source Name
National Institute for Occupational Safety and Health
Performing Organization
New Jersey Department of Health