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![Page 1: Tree Climbing Safety (PDF) - hawaii.govlabor.hawaii.gov/hiosh/files/2012/12/Tree-Climbing-Safety-Eckert...Tree Climbing Safety Too often, unqualified individuals use ropes to climb](https://reader030.fdocuments.net/reader030/viewer/2022020411/5abd21987f8b9a24028ea494/html5/thumbnails/1.jpg)
Tree Climbing Safety
Presented by:
Kevin K. Eckert
Arbor Global
ISA Board Certified Master Arborist WE-1785BU
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Tree Climbing
Tree climbing/rope access permits skilled workers to safely and efficiently access elevated portions of trees that may not be otherwise accessible to conduct required work
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Tree Climbing
Tree climbing is physical and potentially hazardous • Requires skilled, well-trained workers:
• Understand and conform with OSHA and ANSI Z133.1
• Ability to work safely and effectively in the tree
•Industry safety practices
• Inspect all equipment, the tree and site before climbing
• Proper plan all work before tree entry and as work progresses
• Conduct all work according to technically correct standards and
practices
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Tree Climbing Safety
Too often, unqualified individuals use ropes to climb
or
Experienced workers not trained or ignore safety practices • Significantly increases risk to worker and public
• Results in injuries and sometimes fatalities
• Damages trees
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Tree Climbing Accidents
Most common fall causes:
• Disconnect fall protection
• Cut fall protection
• No use of fall protection
• Failure of tie-in point
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Always follow safety requirements: • Applicable laws and regulations (OSHA)
• ANSI Z133.1 standards
• Manufacturer’s tool and equipment instructions
Tree Climbing Safety
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Inspection of Gear
Safety depends on proper equipment in good working condition -
Personal Protective Equipment (PPE)
• Protective Clothing
• Head Protection
• Eye Protection
• Hearing Protection
• Leg Protection/Chaps
• Boots
• Gloves
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Inspection of Gear
Fall protection equipment: Inspect all equipment according to manufacturer’s instructions
• By eye and feel
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“Field Modification" • Modifications in structure, attachments or use not permitted
Unless
• Certified in writing by the manufacturer or nationally recognized
testing laboratory, to be in conformity with ANSI A92.2-1969 and as
safe as before modification
Equipment Inspection
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Rope Inspection
Fall protection and secures logs and equipment • Synthetic fiber
• Minimum breaking strength of 5,400 lbs
• Minimum diameter of ½”, but not less than 7/16”
• Manufactured for tree climbing
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Rope Inspection
Inspect for damage, defects and excessive wear: • Retire if > 25% braided & > 10% 3-strand
• Cuts
• Abrasion
• Pulls
• Glossy/glazed – 2X damage observed
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Rope Inspection
Retire if observed
• Discoloration- brittle/stiff
• Inconsistent diameter – flat or bumps
• Inconsistent texture/stiffness – dirt embedded.
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Rope Inspection
• Rope ends finished to prevent unraveling
• Stored and transport to prevent damage
• Sharp tools
• Chemicals
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Arborist Saddle/Harness Inspection
• Must be specifically designed for tree climbing
• Inspect for damage, defects and excessive wear:
• Retire if significant damage
• Cuts in material
• Stitching broken
• Metal cracked or damaged
• Grommets damaged/missing.
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Carabiner Inspection
• Self-closing and self-locking
• 5,000 lbs (22.24kN) minimum tensile strength
• At least 2 consecutive motions to prepare gate to open
• Inspect for damage, defects and excessive wear: • Retire if significant damage
• Missing or altered parts
• Nicks, cracks or breaks
• Deformation/bends
• Excessive wear
• Corrosion or pits
• Function
• Opens and closes easily
• Safety lock operates.
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Snap Inspection
• Self-closing and self-locking
• 5,000 lbs (22.24kN) minimum tensile strength
• Inspect for damage, defects and excessive wear: • Retire if significant damage
• Missing or altered parts
• Nicks, cracks or breaks
• Deformation/bends
• Excessive wear
• Corrosion or pits
• Function
• Opens and closes easily
• Safety lock operates.
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Work Position Lanyard Inspection
• Meets all standards for rope, snaps and carabiners
• Inspect for damage, defects and excessive wear: • Retire if significant damage
• Rope inspection process and standards
• Snap/carabiner inspection process and standards.
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Prusik Loops & Split Tails
Must meet minimum strength standard as climbing lines
Inspect for damage, defects and excessive wear:
• Retire if significant damage
• Rope inspection process and standards.
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Climbing Safety
Always use fall protection • When > 6 feet off ground, secure fall protection
• Guide: do not lift feet off ground without fall protection
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Climbing Safety
Never use fall protection equipment for other purposes • Lowering wood
• Pulling loads
• Permitted to raise and lower tools
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Climbing Safety
Second person with emergency procedures training shall be present • Above 12 feet off ground
• Within voice or visual range
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Climbing Safety
3-point contact while climbing • Feet, rope, hands
• Hands and feet should be on separate limbs, if possible
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Climbing Safety
3-point support while working • Feet, rope, hands
• Maintain weight on rope(s)
• Maintain stability and control
• Especially while cutting
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Avoid long falls or uncontrolled swings • Do not permit slack in climbing line to loop below feet
• Permits > 5’ fall
• Do not permit climbing line > 45 degree angle
Climbing Safety
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Climbing Safety
Final tie-in as high and central as safe and practical • Secure lanyard or redirects if extended to avoid swing
• Minimize uncontrolled swing if slip
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Climbing Safety
Select strong, properly structured tie-in points • Rope around primary stem, not lateral branch
• Support stem is at least 4 inches diameter
• Ensure no structural defects at tie-in point
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Tie-in Selection • Wide crotch for easy rope movement
• Avoid tie-in that permits swing into hazards (example = power lines)
Climbing Safety
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Climbing Safety
Figure 8 at the end of the climbing line • When at heights > ½ length of climbing line
• When using Blakes, tautline or other open climbing hitch
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Climbing Safety
Split-tails • Terminated with eye-splice or knot
• Remain secure under loading and unloading
• If without captive eye
• Cinch in place to prevent carabiner opening or side-load
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Climbing Safety
Always maintain at least 1 tie-in point at all times • Always secure a second tie-in before disconnect primary fall
protection
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Climbing Safety
Always maintain at least 2 tie-in points when cutting • Required to possess at least 1 extra means to secure while working
• Tie-ins at separate locations
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Climbing Safety
False crotch may be used if natural crotch not available/suitable • Ensure false crotch secure
• Use proper knots, secured
• Only use climbing ropes/straps
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Chain saw • Must use chain saw lanyard
• Long enough for saw to position below feet
• Operator stable and secure when cutting
• Chain brake on when not cutting
• 2 tie-in points whenever cutting, in case one is accidentally cut
Climbing Safety
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Rigging rope confusion • Potential to confuse with fall protection lines
• Rigging ropes clearly marked or different color.
Climbing Safety
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Use only qualified personnel
Always conduct all inspections
Consistently apply correct practices
Kevin K. Eckert
ISA Board Certified Master Arborist WE-1785BU
Arbor Global, PO Box 1343, Kailua, HI 96734
[email protected] 808-254-4161