Explanation should include
- determining if spotters or observers are needed
- considering obscured vision factors
- considering weather factors
- planning escape routes
- considering roadways, trails, firelines, and overhead power lines
- considering nearby workers
- considering felling, bucking, and limbing hazards
- considering overhead hazards
- evaluating guide bar length
- describing footing
- describing felling, bucking, and limbing area and escape routes
- anticipating tree, log, and limb behavior
- planning bucking cut considerations
- slope
- tension
- compression
- locating areas of tension in the log
- inspecting the log for all binds, pivot points and skids
- using wedges when bucking
- preventing the chain from contacting the ground.
Process/Skill Questions:
- How does a sawyer avoid pinching the bar?
- Why should the chain not meet the ground?
Teacher Resource: Health and Safety Code Handbook, United States Department of Agriculture Forest Service (https://www.fs.usda.gov/Internet/FSE_DOCUMENTS/stelprdb5423449.pdf)