このページは国際安全衛生センターの2008/03/31以前のページです。
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Bolt tightening
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A worker is retightening a cylinder pin stopper bolt.
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Various Points of Hazard |
1.
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The worker let the bucket stand and work on the cylinder at a high position, taking an unsteady posture. |
2.
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The worker does not use a regular scaffold or a stepladder. He may likely lose his balance and fall off on the ground, when the spanner slips off the stopper bolt. |
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