Basic Chainsaw Safety & Directional Felling Course Outline Why we train Required Personal Protective...
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Transcript of Basic Chainsaw Safety & Directional Felling Course Outline Why we train Required Personal Protective...
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
• Properly notching and felling a tree
Manual vs. Mechanical Felling
Why We Train:Risk and Hazard
Mitigation
Personal Protective Equipment (PPE)
Required PPE when operating a chainsaw:• Eye protection
• Hearing protection• Head protection• Leg protection• Foot protection
• Personal first aid kit
Eye Protection
Face Screen
Safety Glasses
Hearing Protection
Ear Muffs
Head Protection
Hard Hat
Leg Protection – Why It Is Needed
Types of Leg Protection
Images courtesy of http://www.stihlusa.com/
How Leg Protection Works
How Leg Protection Works
Front side of chaps Back side of chaps
How Leg Protection Works
Foot Protection
• Leather Boots are NOT cut-resistant
• Saw hands are required to wear cut-resistant footwear
Personal first aid kit
Safety Features of the Chainsaw
•Chain brake
•Throttle inter-lock
•Chain catch peg
Chain Brake
Throttle inter-lock
Chain Catch Peg
Proper Grip For Holding the Saw
Reactionary Forces
Pulling Chain
Pushing Chain
Bottom Quadrant or The Attack Corner
ATTACK CORNER
Kick-back Zone
Kick-Back Zone
Safely Starting a Chainsaw
Ground Starting
Leg Lock Start
Safely Starting the Chainsaw
Properly Felling a Tree
Developing a Felling Plan
The Felling Notch
Notch Angle
Correct Notching
Avoid By-Passed Notching
Cutting the Notch
The Felling Plan
1.Overhead Hazards2.Side Lean/ Good Side;Bad Side3.Escape route4.Proper Hinge Wood5.Back Cut
Overhead Hazards
Bad Side Good Side
Escape
Direction of fall
450
450
Proper Hinge Wood
• Function of the hinge wood
• Proper hinge width
• Role of tree species in determining hinge width
Function of the Hinge Wood
Proper Hinge Width
Tree Species & Hinge Width
Photos courtesy of http://cnre.vt.edu/dendro/dendrology/factsheets.cfm
Body Placement
Two Types of Back Cuts
• Conventional back cut• Controlled release back cut
Conventional Back Cut
Controlled Release Back Cut
Conclusion
The SHARP Logger Program would like to thank the following groups for making this training possible:
Disclaimer: Commercial products pictured in this training are for informational purposes only. Virginia Cooperative Extension does not endorse these products and does not intend discrimination against other similar products.
• Forestry Mutual Insurance Company• Bob Shank – Shank Logging• Ontario Hardwoods Inc.
Training Completion