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Hydraulic Limb Loppers

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Hydraulic Limb Loppers

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    1. Hydraulic Limb Loppers BCN 5737 Jennifer Stanley

    2. Hydraulic Limb Loppers The Greenlee Fairmont hydraulic limb lopper is used to cut limbs and branches around power lines, clear overhanging brush, and help maintain a clear line of sight on public roadways.

    3. Anatomy of the Limb Lopper The overall dimensions of the hydraulic limb lopper are 86 inches in length, 6-1/4" wide, and a weight of 12 pounds. The limb lopper should only be used to trim branches up to 2 inches in diameter.

    4. Types of Limb Loppers Limb loppers are available as hydraulic, heavy duty long reach, and lightweight hand varieties. Maximum size of limbs that can be trimmed range from 1 ˝” to 2” diameter.

    5. History of the Limb Lopper Limb loppers are a form of scissors used to trim trees and brush. Scissors were originally invented in Ancient Egypt around 1600 BC. Cross-bladed scissors were created by the Romans in AD 100.

    6. Limb Loppers OSHA defines limb loppers as a hand and portable power tool. OSHA Standard 29 CFR 1910.269 applies to line-clearance tree-trimming operations and states 1910.269(r)(1)(i) Before an employee climbs, enters, or works around any tree, a determination shall be made of the nominal voltage of electric power lines posing a hazard to employees. However, a determination of the maximum nominal voltage to which an employee will be exposed may be made instead, if all lines are considered as energized at this maximum voltage.

    7. Quick Facts on Limb Loppers In 2007, OSHA & Tree Care Industry Association Alliance reported that 69 non-fatal accidents occurred in 24 states performing tree trimming work. Sixty six of the accidents involved males and three involved females. The mean age was 35.7 years of age and the median age was 32 years old. Accidents occurred most often during the months of June, August and November.

    8. Quick Facts on Limb Loppers A total of 45 fatalities occurred in 2007. All fatalities were males between the ages of 20 and 72. The mean age was 35.7 years old and the median age was 31 years old. Fatalities occurred in 21 states. Only one fatality was due to heat-related stress. The rest were as follows.

    9. Non-fatal Accidents in 2007

    10. Fatal Accidents in 2007

    11. Examples of Lopper Accidents Example #1 An employee performing tree trimming operations was working from an articulating boom at an elevation of 50-60 feet off the ground. The employee dropped the pole saw he was using to trim limbs from a pine tree. In the process of retrieving the pole saw, the employee was caught between the work bucket and the jib extension causing positional asphyxiation. The employee was not using any fall protection equipment or wearing a hard hat.

    12. Example #2 Employee was trimming tree limbs from around a 138 kV power transmission line when he was electrocuted. The limb he was cutting was not roped off and it fell coming in contact with or falling close enough to the line that the electricity could arc across the limb and into the tree and killed the victim.

    13. Example #3 Employee was cutting tree branch while standing on a ladder. The branch broke prematurely, striking the employee, knocking him off the ladder. The employee fell 18 feet to his death.

    14. Safety for Limb Loppers Assume that All Power Lines Are Energized! Contact the utility company to discuss de-energizing and grounding or shielding of power lines. All tree trimming or removal work within ten feet of a power line must be done by trained and experienced line-clearance tree trimmers. A second tree trimmer is required within normal voice communication range. Line-clearance tree trimmers must be aware of and maintain the proper minimum approach distances when working around energized power lines. Use extreme caution when moving ladders and equipment around downed trees and power lines.

    15. Safety for Limb Loppers Stay Alert at All Times! Do not trim trees in dangerous weather conditions. Perform a hazard assessment of the work area before starting work. Eliminate or minimize exposure to hazards at the tree and in the surrounding area. Operators of chain saws and other equipment should be trained and the equipment properly maintained. Use personal protective equipment such as gloves, safety glasses, hard hats, hearing protection, etc., recommended in the equipment manufacturer’s operating manual. Determine the tree’s felling direction. Address forward lean, back lean, and/or side lean issues.

    16. Safety for Limb Loppers Determine the proper amount of hinge wood to safely guide the tree’s fall. Provide a retreat path to a safe location. Inspect tree limbs for strength and stability before climbing. Tree trimmers working aloft must use appropriate fall protection. Do not climb with tools in your hands. If broken trees are under pressure, determine the direction of the pressure and make small cuts to release it. Use extreme care when felling a tree that has not fallen completely to the ground and is lodged against another tree. Never turn your back on a falling tree. Be alert and avoid objects thrown back by a tree as it falls.

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