Scaffold SafetyPART 2

29 CFR 1926 Subpart L

Scaffold Load capacities

• It is crucial to stay within the scaffold’s load limits

• Scaffolds must be designed by a qualified person

• Scaffolds must be constructed and loaded in accordance with that design

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Essential Elements of SafeScaffold Construction

•Use appropriate scaffold construction methods

•Proper scaffold access•Properly use a

competent person •Scaffolds must be level and plumbed

Scaffold Platform Construction

Platforms must:• be fully planked

or decked with no more than 1 inch gaps

• be able to support its weight & 4 times maximum load

• be at least 18 inches wide

This is not a properly

constructed scaffold

• No large gaps in front edge of platforms• Each abutted end of plank must rest on

a separate support surface• Overlap platforms at least 12 inches

over supports, unless restrained to prevent movement

Scaffold Platform Construction

Planks are not

properly over-

lapped

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 with no standing water

• Lock wheels and braces

Load capacities

• Each scaffold and scaffold component must be able to support:– its own weight– at least 4 times the maximum intended

load applied or transmitted to it

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Load capacities

• It’s up to the worker to understand and stay within the capacities of the equipment

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Load capacities

• Don’t make arbitrary changes to a scaffold’s structure

• Any modifications can affect the scaffold’s capacity and stability

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Load capacities

• Scaffolds and scaffold components must never be loaded in excess of their maximum intended loads or rated capacities, whichever is less

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Materials handling on scaffolds

• Any materials taken onto the platform must be handled properly

• Do not allow debris to accumulate on platforms

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Materials handling on scaffolds

• If materials start to pile up above toeboards, the scaffold may need additional falling object protection

• Secure any liquid or powdery materials to guard against spills

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Materials handling on scaffolds

• Take extra precautions in windy conditions

• During storms or high winds, a competent person must determine if it is safe for employees to be on the scaffold

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Materials handling on scaffolds

• Use tag lines or equivalent measures to control any swinging loads that are being hoisted onto or near scaffolds

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Inspection requirements• Inspect scaffolds and scaffold

components for visible defects before each shift and

the end of the job

• Inspect scaffolds after any occurrence that could affect a scaffold’s structural integrity

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Inspection requirements• Early detection of structural

defects is important; look for hairline cracks

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Inspection requirements

• Ensure that structural defects in platforms are not covered from view

• Platforms may not be covered with opaque finishes

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Inspection requirements

• Platforms may be coated with:– Clear wood preservatives– fire-retardant finishes– slip-retardant finishes– No paint is allowed on planks!

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Inspection requirements

• Platform edges can be marked to show identification, grading, or similar types of marks

• Inspect ropes for defects prior to each workshift and after every occurrence that could affect a rope’s integrity

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Inspection requirements

• Before a suspension scaffold is used, inspect the direct connections (bolts)

• Inspect and retighten wire rope clips at the start of each workshift

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Handling damaged components• Damaged or weakened scaffolds must

be:– immediately repaired or replaced– braced– removed from service until repaired

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Handling damaged components

• On suspension scaffolds, ropes must be replaced. if any of the following conditions exist:

-Any physical damage that impairs the function and strength of the rope

-Kinks that might impair the tracking or wrapping of rope around the drum(s) or sheave(s)

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Handling damaged components

• Heat damage caused by a torch or any damage caused by contact with electrical wires

• Evidence that the secondary brake has been activated during an overspeed condition and has engaged the suspension rope

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Safe access to scaffold platforms

• When scaffold platforms are more than 2 feet above or below a point of access, means of access include:

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Safe access to scaffold platforms

• Portable ladders

• Hook-on ladders

• Attachable ladders

• Stair towers

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Safe access to scaffold platforms

• Stairway-type ladders

• Ramps

• Walkways

• Integral prefabricated scaffold access

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Safe access to scaffold platforms

• Direct access from another scaffold, structure, personnel hoist, or similar surface

• Crossbraces

cannot be

used as a

means

of access

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Hazards of using materials to increase scaffold height

• Don’t use makeshift devices,

such as boxes

and barrels,

to increase

the working

level height

• Ladders must not

be used on scaffolds to

increase the working level

height except on large area scaffolds

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Hazards of using materials to increase scaffold height

• A large area scaffold is erected over substantially the entire work area:– a pole scaffold– tube and coupler

scaffold– systems scaffold– fabricated frame

scaffold

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Hazards of using materials to increase scaffold height• Ladders may be used on large area

scaffolds if the:-Ladder is placed

against a structure

that is not a part

of the scaffold

-Scaffold has been

secured against the

sideways thrust

exerted by the ladder

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Hazards of using materials to increase scaffold height

• Platform units are secured with cleats on the scaffold to prevent their movement

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No Cleats

Hazards of using materials to increase scaffold height

• Ladder legs are on the same platform or other means is used to stabilize the ladder against unequal platform deflection

• Ladder legs are secured to prevent them from slipping or being pushed off the platform

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Need to Increase

the scaffold height

Steady

Steady

Steady

No worry

I have you!

End of Part 2 Scaffold Safety Training

Thank You

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