A person was injured while operating a mechanical harvester. A piece of chain broke off the processing head and flew through the protective glass of the harvester striking the operator in the chest.
'Chain shot' are pieces of saw chain that fly free when a chain breaks during use. These pieces of chain travel at very high speeds and can forcibly strike anyone or objects in their path. The possibility of chain shot is present during the operation of any kind of logging machinery equipped with a guide bar and saw.
Operators of harvester heads, stroke delimbers, or dangle-head processors are most at risk of serious injury; however, person working near such equipment are also at risk.
The following are some suggestions for reducing the possibility of chain shot:
(portions of the above material were excerpted from a Washington State Department of Labor and Industries Hazard Alert)
For further information please go to the following sites:
Broken Chain link almost kills worker - WorkSafe BC video, 2 minutes (you tube)
Hazard Alert - WorkSafe BC
Safety Alert of the Month - BC Forest Safety Council (pdf)
Chain Shot Safety Information - Oregon Cutting Systems
1st of February, 2012