1 / 22

Ladder Jack Scaffolds

A light duty scaffold supported by brackets attached to ladders. Its a supported scaffold consisting of a platform resting on brackets attached to ladders.. What is a ladder Jack Scaffold?. 2 Heavy?duty extension ladders1 set of Ladder JacksScaffold Planks. Equipment .

cuthbert
Télécharger la présentation

Ladder Jack Scaffolds

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

    1. Ladder Jack Scaffolds

    2. A light duty scaffold supported by brackets attached to ladders. Its a supported scaffold consisting of a platform resting on brackets attached to ladders. What is a ladder Jack Scaffold?

    3. 2 Heavy–duty extension ladders 1 set of Ladder Jacks Scaffold Planks Equipment

    4. Gutter Siding Painting Shingling Applications

    5. Types of Ladder Jacks Where the working platform is on the inside of the ladder. This provides a closer platform to the work surface.

    6. Types of Ladder Jacks (Contd.) Where the working platform is to the outside of the ladder.

    7. Falls from ladder or scaffold during erection. Injuries caused by falling material, equipment, or plank itself falling. Injuries due to collapse of ladder jack (Improper erection, faulty elements, struck by moving vehicles). Electric shock or electrocution (power lines, defective power equipment). Ladder jack struck by approaching vehicles/traffic. Safety Concerns

    8. Fatality Statistics

    9. Fall Example: Employee was climbing the ladder of a ladder jack scaffold while carrying a 2 in. by 12 in. by 12 ft wooden board. The ladder's feet were on a brick walkway. The ladder slipped and the employee fell, striking his head on a concrete patio. He died of a fractured skull. Description of Fatality

    10. MALFUNCTION Example: Employee was carrying a bundle of shingles up a faulty ladder. The ladder split, cracked, and broke, causing the platform with the two coworkers to also fall. The ladder jack scaffold struck the employee, causing multiple trauma to the head. He died. Description of Fatality (Contd.)

    11. STRUCK-BY Example: Employee and a coworker were working on a ladder jack scaffold approximately 8 ft tall when an employee of another company drove a forklift by the scaffold. The forklift struck the ladder, causing the scaffold to collapse and the employee to fall to the ground. The forklift operator backed up the machine, running over the employee’s head. Description of Fatality (Contd.)

    12. ELECTROCUTION Example: A painter and his coworker were erecting a ladder jack scaffold. The painter was standing on a metal pick board at a height of 28 feet. The scaffold was about 7 feet away from an 8000-volt overhead power line. The 22-foot-long metal hand rail the painter was handling contacted the power line, electrocuting him. Description of Fatality (Contd.)

    13. OSHA Regulations Platforms on ladder jack scaffolds can not exceed a height of 20’ Maximum span between supports shall be 8 feet. Each platform has to be at least 12” wide If bearing on rungs only, the bearing area shall be at least 10” on each rung. All ladder-jack scaffolds shall be limited to light duty and shall not exceed a height of 20 feet above the floor or ground.

    14. Ladder jack shall be so designed such that it will bear on the side rails in addition to the ladder rungs. Each employee working on a ladder jack scaffold more than 10’ above a lower level must be protected by a personal fall arrest system Not more than two employees shall occupy any platform at any one time. OSHA Regulations

    15. Regulations & Violations Regulation: Ladders must be used on level surfaces unless secured to prevent displacement. Violation: Ladder feet not stable on a sloped roof.

    16. Regulations & Violations Regulation: Ladder jack scaffolds shall not exceed a height of 20 feet. Violation: Scaffold was 26 feet high.

    17. Regulations & Violations Regulation: Employees on a ladder jack scaffold shall be protected by a personal fall arrest system when working above 10 feet. Violation: No fall arrest on the 14 foot high scaffold.

    18. Regulations & Violations Regulation: Ladder jack scaffold platforms shall not be bridged one to another. Violation: Both metal planks resting on a single ladder jack bracket.

    19. Suggested PPE Hard Hat Eye Protection Gloves Work Boots Full Body Harnesses-Lanyard Safety Lines Roof Anchors

    20. Erection and Safety Procedures

    21. Erection and Safety Procedures Set the two ladders in position and set up the Ladder Jacks

    22. Erection and Safety Procedures

    23. Think Safety Work Safely

More Related