Scaffold Safety Part 3

Scaffold SafetyPART 3

29 CFR 1926 Subpart L

Competent Person

Person capable of identifying and promptly correcting hazards

Determines if it’s safe to work on a scaffold during storms or high winds

Trains workers to recognize hazards

Is designated by the employer as the Competent Person

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Supported Scaffolds•Platforms supported by legs, outrigger beams, brackets, poles, uprights, posts, & frames

•Restrain from tipping by guys, ties, or braces

•Scaffold poles, legs, posts, frames, and uprights must be on base plates and mud sills or other firm foundation

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Scaffold Platform Construction

• No paint on wood platforms

• Use scaffold grade wood

• Fully planked between front upright and guardrail support

• Component pieces used must match and be of the same type

• Erect on stable and level ground

• Lock wheels and braces

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Scaffold Height

The height of the scaffold should not be more than four times its minimum base dimension unless guys, ties, or braces are used20’

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Erecting/dismantling scaffolds• Employees must be trained and

experienced in erecting and dismantling scaffolds

• Employees working on supported scaffolds must be provided with safe access

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Erecting/dismantling scaffolds• A competent person must determine if

providing safe access is feasible based on site conditions and the type of scaffold

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Erecting/dismantling scaffolds• For employees who are erecting

supported scaffolds, hook-on or attachable ladders are to be installed as soon as possible

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Erecting/dismantling scaffolds• End frames with horizontal members

that are parallel, level, and not more than 22 inches apart vertically may be used as climbing devices for access

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Erecting/dismantling scaffolds

• Cross braces on tubular welded frame scaffolds must not be used as a means of access or egress during erecting or dismantling work

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Erecting/dismantling scaffolds• Employers are required to provide fall

protection for employees erecting or dismantling supported scaffolds

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Erecting/dismantling scaffolds

• A competent person must determine the feasibility and safety of providing fall protection for employees

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Moving a scaffold• Unless so designed, scaffolds cannot

be moved horizontally while employees are on them

• Follow the requirements at 29 CFR 1926.452 for mobile scaffolds

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Moving Scaffolds•Employees can’t be on a moving scaffold unless:

- Surface is level- Height to base ratio is 2

to 1- Outriggers are installed

on both sides of scaffolds

•Employees can’t be on scaffold part beyond the wheels•Competent person must be on site to supervise

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Fatal Fact – Moving a Lift

•Employee was operating an aerial lift, with an extendable boom rotating work platform•The boom was fully extended and the machine apparently ran over some bricks, causing the boom to flex or spring, throwing the employee from the basket•The employee fell 37 feet to a concrete surface

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Aerial lifts

• 29 CFR 1926.453 addresses both general and specific requirements

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Aerial lifts

• Aerial lifts include the following types of vehicle-mounted aerial devices:– Extensible boom platforms– Aerial ladders– Articulating boom platforms– Vertical towers– A combination of any such devices

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Aerial lifts

• Aerial equipment:– may be made of metal, wood, fiberglass

reinforced plastic (FRP), or other material– may be powered or manually operated– is considered to be an aerial lift whether

or not it is capable of rotating about a substantially vertical axis

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Aerial lifts• A PFAS must be worn

with a lanyard attached to the boom or basket when working from an aerial lift

• Body belts do not meet the requirements of 29 CFR 1926.452 (b) (2) v

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Aerial lifts

• Do not belt off to an adjacent pole, structure, or equipment while working from an aerial lift

• All of the training requirements in 29 CFR 1926.454 apply to the use of aerial lifts

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Aerial lifts

• Only authorized persons can operate an aerial lift

• Lift controls must be tested each day prior to use

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Aerial lifts

• Climbers must not be worn when working from an aerial lift

• Unless so designed, an aerial lift truck must not be moved when the boom is elevated in a working position with workers in the basket

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Summary

Remember to:• Use appropriate scaffold construction

methods– Erect, move, or alter scaffold properly– Protect from falling objects or tools

• Ensure stable access• Use a competent person– Train on scaffold construction and the

hazards involved with scaffolds– Inspect scaffold before each shift and

after alterations– Determine fall protection requirements

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End of Part 3 Scaffold Safety Training

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