a scaffold must be erected plumb, square and level becausea scaffold must be erected plumb, square and level because

Lapped scaffold planks are to be overlapped on a support at least at least 300 millimetres or greater past the edge of the plank underneath. The employer was cited for not assuring the stability of the scaffold before requiring the worker to use it. [, Employees must be able to safely access any level of a scaffold that is 2 feet above or below an access point. 5. Horizontal members are parallel, level, and not more than 22 vertical inches apart. Shapes materials to prescribed measurements, using saws, chisels, and planes. Cross-braces of the proper length must be used to ensure that the scaffold will remain plumb and rigid. Secure scaffolds to the structure during erection and dismantling. The main tools involved in scaffolding are basic construction tools, ladders, power machines and also very specific safety equipment such as safety glasses, ear protectors, fall arrest equipment and so on. (l) Use a tag line when hoisting materials onto a scaffold. Heavy-duty scaffolds can support 75 pounds per square foot. To counteract this, the scaffold must be braced or tied off to a stable structure such as a structural steel. Supported scaffold poles, legs . Legs, posts, frames, poles, and uprights must be on base plates and mud sills, or a firm foundation and, be plum b and braced. [, All brace connections must be secured to prevent dislodging. [, A distance of no less than 28 inches and no more than 37 inches from the upper surface of the stair rail to the forward edge of the tread, in line with the face of the riser. (, Midrails, screens, mesh, intermediate vertical members, solid panels, etc., must be able to withstand a force of at least 150 pounds applied in any downward or horizontal direction, at any point along the midrail or other member. This will have an impact on what components you will need as well as how many of each component will be necessary to complete your tasks. _____ 1. Tip: One way to ensure a stable foundation, when a sill is used, is to secure it to the baseplate (Figure 2). Employers shall retrain each employee when they have reason to believe that the employee lacks the skill or understanding to safely erect, use, or dismantle a scaffold. [. The following procedures will cover all scaffolding erected, . A specific access, such as a mounted ladder, must be used. Scaffolds must not be close enough to overhead power lines that they, or any conductive materials (e.g. 1926.454 This topic discusses supported scaffolds. [29 CFR 1926.451(c)(3)]. 4. Scaffold components of dissimilar metals should not be used together, unless the competent person has determined that galvanic action will not reduce the strength of any component. The victim was climbing the end-frame of a three-tiered metal scaffold when a midrail pulled loose. Fasten all couplers and/or connections securely before assembling the next level. (i) There must be a ladder or equivalent safe access. Support scaffold footings must be level and capable of supporting the loaded scaffold. [, Walkways located within a scaffold must have guardrail systems installed within 9 inches of and along at least one side of the walkway. (F) Tubular welded frame scaffolds. Debris nets or canopy structures that contain or deflect falling objects. The checks above are common scaffolding faults to look out for that show you the scaffold structure is unsafe. [, Wooden planking must not be covered with opaque finishes, except that platform edges may be marked for identification. Supported scaffold poles, legs, posts, frames, and uprights shall be plumb (i.e. When a supported scaffold reaches a height that is more than four times its minimum base dimension (4:1), it must be restrained by guys, ties, or braces to prevent it from tipping. Scaffolding means a convenient platform for persons to work at height. Avoid propping the scaffolding frames up on the side of the bed. TRUE represents being SQUARE on both the LEVEL & PLUMB axis at the same time on all sides of the unit being installed. Scaffolds and scaffold components must be capable of supporting, without failure, their own weight and at least 4 times their maximum intended load. [, Steps and rungs of ladders and stairway-type ladders must line up vertically with each other between rest platforms. The other five workers were hospitalized with electrical burns. Supported scaffold poles, frames, uprights, etc. Employees involved with set up (or near) the scaffold must wear hard hats. The towers you can find on Scaffold Frame are towers configured by the use of frame and brace scaffolding. Ties, guys, bracing and/or outriggers may be needed to assure a safe, stable scaffold assembly. Construction and loading must comply with engineered designs and manufacturers requirements. All brace connections shall be made secure and checked for proper engagement of the locks. Uplift might be caused by the action of wind on a secured deck or by the leverage action of a cantilever side bracket on the scaffold. tools, scrap material, chemicals, snow, ice, etc.) [, Guys, ties, and braces must be installed according to the scaffold manufacturer's recommendations or at the closest horizontal member to the 4:1 height ratio and be repeated every 20 vertical feet for narrow scaffolds (3 feet or less in width), and every 26 vertical feet for scaffolds greater than 3 feet in width. And also, there are lots of sites that sell scaffolding spare parts. Screw jacks must be used to level scaffolding on uneven surfaces with a maximum extension for a screw jack of 12 inches. Where the platform will not be more than 14 inches from the face of the work (18 inches for plastering and lathing operations), fall protection is not required. No handhold available. General Guidelines. [, A landing platform at least 18 inches wide by 18 inches long at each level. All brace connections shall be . Fall protection consists of either personal fall-arrest systems or guardrail systems, and must be provided on any scaffold 10 feet or more above a lower level. They should be installed along all open sides and at both ends of platforms, except when used as a walkway, the platform is the main working area of the scaffold. Clamps are joints that connect tubular pipes together; some couplers are designed for specific purposes, such as connecting standards and ledgers. Too much material being stored on the platform. You can measure if something is plumb by using a plumb bob or a spirit or laser level. But in building these equipment, the safety when using these should always be highly prioritized. [, OSHA standards specifically forbid climbing cross-braces as a means of access. Since it is an elevated platform, the stability decreases as the height increases. Standards are vertical pipes that are connected with clamps or couplers to give the structure its height; ledgers are horizontal braces that steady the structure and give it width. Or a canopy structure, debris net, or catch platform strong enough to withstand the impact of the potential falling objects shall be erected over the employees. Hardware should be included to fasten the planks into place. Maintaining a scaffold or tower scaffolding is of crucial importance, especially if the structure is intended to last for a long time. Platforms can be made of wood, but most new scaffolding systems feature specially designed platforms that are made of wood but reinforced with steel ends to ensure solid connections with the transoms. Platforms may be coated periodically with wood preservatives, fire retardants, and slip-resistant finishes, provided they do not obscure the top or bottom wood surfaces. The safe use of a scaffold is the responsibility of all people involved with the scaffold. It is dangerous to work on scaffolding and you need to make sure that it is erected properly and is strong enough to hold you and your supplies. Installed protective coverings to prevent accidental contact with the lines. Tip: Separation of frames can occur in high winds (uplift), or when workers climb endframes, overload the platform, or strike the scaffold with tools, materials, etc. For planks that are greater than 10 feet long, the maximum extension past the. The ladder must extend 1 m (3 ft.) above the landing. Employers are required to provide fall protection for employees erecting or dismantling supported scaffolds where it is feasible, and where installing and using it does not create a greater hazard. Do not force frames or braces to fit - level the scaffold until proper fit can easily be made. In addition, there is a lot of information regarding building your own scaffold towers on the Internet. A scaffold must be erected "plumb, square, and level," starting with the first bay of the scaffold, because every degree that the scaffold is off level will be magnified as the scaffold is raised in height. Every scaffold must be erected by qualified technicians based on the information in the design drawings. Medium-duty scaffolds can support 50 pounds per square foot. Scaffold Frame keeps only high grade steel scaffolding in inventory, but aluminum scaffold is available on request. the type of scaffold in question. [, Forklifts shall not be used to support scaffold platforms unless [. The focus of this position will be to construct, erect, install, and repair structures and fixtures of wood, plywood, and wallboard, using carpenter's hand tools and power tools, conforming to . The standard dimensions are 5 foot and 7 foot long. Connect the first cross- brace to the frame. We need to follow scaffolding safety procedures. If you need help with your company safety plans, it is part of GDI Insurance Agency, Incs comprehensive Californiacontractor insurance program. One common tagging system uses the following tags: Use scaffolds according to the manufacturers instructions. One exception is when the scaffold platform is within 14 inches of the face of the work. The amount of time needed to erect and dismantle the scaffold. Greater variations in riser height are allowed for the top and bottom steps of the entire system (not for each flight of stairs). [, Scaffold platforms and walkways must be at least 18 inches wide, unless they are used in areas that the employer can demonstrate are so narrow that they must be less than 18 inches wide. Tip: A level may be used frequently during assembly to guarantee that new structural components remain in line. 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