Wildland Fire Chain Saws, S-212 - NWCG Training Catalog

Tension causes throw-back, splitting, and barber chairing. Top bind: One of the five basic tree positions commonly encountered while bucking. A log in a top-bind situation is compressed on top and tensioned on the bottom. ... National Institute for Occupational Safety and Health. NPS: National Park Service (Fire and Aviation Management). ................
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