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国際安全衛生センタートップ > 事例研究 > Cases of Accident-related Injuries

Slipped-up jack drops lift truck on mechanic, injuring him seriously
A mechanic put a lift truck on supporting frames and tried to get under the chassis in an effort to check the brushes of the electric motor.
But he found the chassis height was a bit too low for him to creep in, so he lifted it up further and started the work.
Then the jack slipped up all of sudden and fell off on him. He was seriously injured.



Corrective Action
1. Prepare for supporting frames of appropriate height.
2. Do not forget to support a lifted machine with steadfast frames, after it has been jacked up.
3. Apply chocks so that a machine will not move back and forth.
4. Appoint a work conductor for such work involving danger.


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