Wash. Admin. Code § 296-54-520
Current through Register Vol. 24-23, December 1, 2024
"Chain shot" is the high velocity separation and ejection of a piece or pieces of cutting chain from the end of a broken chain in mechanized timber harvesting. Chain shot exposes both machine operators and bystanders to a risk of serious injury or death. Chain shot typically occurs near the drive end of the cutting system but can also come from the bar tip area.
A chain shot consists of two breaks in a chain. First, the loop of the chain breaks and forms two ends. One end moves past the drive sprocket or bar tip and is rapidly accelerated due to a whip-like motion of the chain end. The whip action causes the second break, releasing small parts at extremely high speed.
Wash. Admin. Code § 296-54-520