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Basic Chainsaw Safety & Directional Felling

Basic Chainsaw Safety & Directional Felling. Course Outline. Why we train Required Personal Protective Equipment (PPE ) Safety features of the chainsaw Safely starting a chainsaw Reactionary forces when operating a chainsaw Developing a safe felling plan

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Basic Chainsaw Safety & Directional Felling

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  1. Basic Chainsaw Safety& Directional Felling

  2. Course Outline • Why we train • Required Personal Protective Equipment (PPE) • Safety features of the chainsaw • Safely starting a chainsaw • Reactionary forces when operating a chainsaw • Developing a safe felling plan • Properly notching and felling a tree

  3. Manual vs. Mechanical Felling

  4. Why We Train:Risk and Hazard Mitigation

  5. Personal Protective Equipment (PPE) • Required PPE when operating a chainsaw: • Eye protection • Hearing protection • Head protection • Leg protection • Foot protection • Personal first aid kit

  6. Eye Protection Safety Glasses Face Screen

  7. Hearing Protection Ear Muffs

  8. Head Protection Hard Hat

  9. Leg Protection – Why It Is Needed

  10. Types of Leg Protection Images courtesy of http://www.stihlusa.com/

  11. How Leg Protection Works

  12. How Leg Protection Works Back side of chaps Front side of chaps

  13. How Leg Protection Works

  14. Foot Protection • Leather Boots are NOT cut-resistant • Saw hands are required to wear cut-resistant footwear

  15. Personal first aid kit

  16. Safety Features of the Chainsaw • Chain brake • Throttle inter-lock • Chain catch peg

  17. Chain Brake

  18. Throttle inter-lock

  19. Chain Catch Peg

  20. Proper Grip For Holding the Saw

  21. Reactionary Forces

  22. Pulling Chain

  23. Pushing Chain

  24. Bottom Quadrant or The Attack Corner ATTACK CORNER

  25. Kick-back Zone Kick-Back Zone

  26. Safely Starting a Chainsaw

  27. Ground Starting

  28. Leg Lock Start

  29. Safely Starting the Chainsaw

  30. Properly Felling a Tree

  31. Developing a Felling Plan

  32. The Felling Notch

  33. Notch Angle

  34. Correct Notching

  35. Avoid By-Passed Notching

  36. Cutting the Notch

  37. The Felling Plan • Overhead Hazards • Side Lean/ Good Side;BadSide • Escape route • Proper Hinge Wood • Back Cut

  38. Overhead Hazards

  39. Bad Side Good Side

  40. Escape 450 Direction of fall 450

  41. Proper Hinge Wood • Function of the hinge wood • Proper hinge width • Role of tree species in determining hinge width

  42. Function of the Hinge Wood

  43. Proper Hinge Width

  44. Tree Species & Hinge Width Photos courtesy of http://cnre.vt.edu/dendro/dendrology/factsheets.cfm

  45. Body Placement

  46. Two Types of Back Cuts • Conventional back cut • Controlled release back cut

  47. Conventional Back Cut

  48. Controlled Release Back Cut

  49. Conclusion

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