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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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| Mechanic falls off
machine while removing brake piping. |
| In order to replace
the brake piping on wheel loader, a mechanic climbed on the rear wheel and
was trying to detach the brake piping with a single ended wrench inserted
into a pipe. The wrench slipped out of the impromptu extension handle, and
his own force sent him down on the ground and injured him. As illustrated
at right, the handle of his wrench was lengthened with an extension pipe
whose tipped was flattened to hold it firmly. . |
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| Corrective Action |
| 1.
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Take steps
necessary to facilitate the work such as dismounting the tire.
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| 2.
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From the
standpoints of safety keeping as well as observing the prescribed
tightening torque, do not try to extend the handle of wrenches and
spanners with a pipe in principle. |
| 3.
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Use permeable
lubricant, when dealing with bolts and nuts hard to loosen.
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