Electrocution, electric shock, burns, indirect (e.g., a fall from a ladder). Prevent An Expressway Emergency By Merging Without _____. Never sit on, lean against, or step on a skylight lens or any covering placed over a hole in a roof or floor D. Static electricity gathers outside the circuit. Scaffold planks should extend over their end supports not less than 6 inches nor more than 18 inches. Scaffolds shall be securely attached to the window opening. There are many other scaffolds in use as well, each with advantages and Ropes or hangers shall be used for supports, except that one end of a needle beam scaffold may be supported by a permanent structural member. This poses a risk of electrocution not just to the worker holding the tool, but to everyone who contacts the scaffold. A. Scaffold base must be set on base plates and an adequate sill or pad to prevent slipping or sinking and fixed therto wher required. Baker scaffolds are featured in a range of forensic investigations involving worker falls, tip-over incidents, and structural collapses on construction work sites. Scaffolds made of wood shall be reinforced with gussets on both sides of each corner. common. Activate your 30 day free trialto continue reading. Two-point scaffolds shall not be bridged or otherwise connected one to another during raising and lowering operations unless the bridge connections are articulated (attached), and the hoists properly sized. Insufficient length. Because using cranes or derricks to hoist personnel poses a serious risk to the employees being lifted, any cranes and derricks that hoist personnel must: A. Save my name, email, and website in this browser for the next time I comment. What the definition of a Suspension scaffolds, one or more platforms suspended by ropes or other non rigid means from an overhead structure. In the United States and Canada, most scaffolds found at jobsites are made of steel, Faults: Damaged. Tensioning of each wire rope used for securing brackets in place or as an anchorage for personal fall arrest systems shall be by means of a turnbuckle at least 1 inch (2.54 cm) in diameter, or by equivalent means. The cross braces shall be of such length as will automatically square and align vertical members so that the erected scaffold is always plumb, level, and square. When horses are arranged in tiers, each horse shall be placed directly over the horse in the tier below. c. The Law of Conservation of Matter must be followed. "Plasterers', decorators', and large area scaffolds." C. Explosives Secure access to the scaffold. OSHA 10-Hour Construction Course: Module 5 Scaffolds Page 1 of 22 Scaffolds shall be stabilized to prevent tipping during movement. The body becomes part of the circuit A scaffold is a temporary, elevated platform that construction workers use for working safely at elevations. potential hazards that employers and workers need to be aware of so they can take the It is used in construction work where the work cannot be done from the ground level. Guardrails should be between 38" and 45" high. Correct answer Special care and training incentives C. Electricity jumps its normal path and strikes a person 15% c. 20% d. 25% Install a suitable means of access, such as a sloping or vertical ladder secured to the scaffold at the landing point. Review the foundation. Ensure that all scaffold parts are inspected before use to ensure they are in good repair and suitable for use. Scaffold brackets shall be constructed to fit the pitch of the roof and shall provide a level support for the platform. Caster stems and wheel stems shall be pinned or otherwise secured in scaffold legs or adjustment screws. Bracing shall extend diagonally from the inner or outer posts or runners upward to the next outer or inner posts or runners. Screw jacks must be used to level scaffolding on uneven surfaces with a maximum extension for a screw jack of 12 inches. Unsafe scaffolding has the potential to result in death or serious . Before a scaffold is moved, each employee on the scaffold shall be made aware of the move. To enforce the federal regulations that ensure that business is conducted in an ethical manner When only a part of the width of the metal scaffold frame conforms to ladder spacing, then these frames must be erected in a manner that makes a continuous ladder bottom to top, with ladder sides of the frames in a vertical line. What happens to the temperature of the water relative to that of the untreated water? When dismantling a scaffold, all work should be conducted: Tube and coupler scaffolds over 125 feet high must be designed by: What type of scaffold other than the tube and coupler scaffold is ideal for use around complex structures? Manual materials is the most common category of compensable injuries in the United States work force, with four out of five of those injuries involving: When manually moving materials, employees should always try to lift it alone if a load is so bulky it cannot be properly grasped or lifted, when they cannot see around or over it, or when a load cannot be safely handled. Knowledge of the basic anatomy of the spine, muscles, and joints of the trunk Scaffolds have been around for thousands of years, and there are myriad types and employers in workdays not lost. Bearers shall be installed transversely between posts, and when coupled to the posts, shall have the inboard coupler bear directly on the runner coupler. Frequently used types of scaffolds include the A narrow excavation made below the surface of the ground in which the depth is greater than the width with the width not to exceed 15 feet The sheaves of all blocks shall fit the size of the rope used. The ropes shall be securely attached to the needle beams. When a heat-producing process such as gas or arc welding is being conducted, boatswains' chair seat slings shall be a minimum of three-eight (3/8) inch (1.0 cm) wire rope. Platforms shall be secured to the brackets in a manner that will prevent the separation of the platforms from the brackets and the movement of the platforms or the brackets on a completed scaffold. Scaffold 0c8be2a1 9996-490a-99c0-6ef40baed98a. Which of the following is an element of a hearing conservation program? Scaffolding in this Guide means the individual components, for example tubes, couplers 1. Suspension scaffold rigging must at least 6 times the intended load. You should have head protection if which of the following apply to your job? Scaffolding must not be placed on unstable objects, such as bricks or blocks. True or False: There is usually some form of warning before a cave-in. Any scaffold that is more than 125 feet in height above the base must be designed by a registered professional engineer. Crawling boards shall extend from the roof peak to the eaves when used in connection with roof construction, repair, or maintenance. Scaffold components. Supports for platforms shall be attached directly to the support stirrup and not to any other platform. Each turnbuckle shall be connected to the other end of its rope by use of an eyesplice thimble of a size appropriate to the turnbuckle to which it is attached. Engineering and Administrative Controls. Pump jack brackets, braces, and accessories shall be fabricated from metal plates and angles. Guard or securely cover all holes created or uncovered before leaving a work area Scaffolds over 125 feet (38.0 m) in height above their base plates shall be designed by a registered professional engineer, and shall be constructed and loaded in accordance with such design. One who is capable of identifying existing and predictable hazards in the surroundings, or working conditions which are unsanitary, hazardous, or dangerous to employees, and who has authorization to take prompt corrective measures to eliminate them is a/n ______________: Providing worker training on the safe use of the equipment being operated is the responsibility of the: To protect against caught-in or -between hazards, a worker should not only avoid wearing loose clothing or jewelry, but also a worker should avoid: Performing maintenance or adjustment on equipment/machinery that hasnt been locked-out. ", "Form scaffolds and carpenters' bracket scaffolds. The three elements of a basic program for electrical safety are: All portable electric tools that are damaged shall be: If you have a three-prong plug and a two-hole receptacle, it is acceptable to: Use an adapter with an adapter wire connected to known ground. least three examples of incorporating each of the elements. Now customize the name of a clipboard to store your clips. Runners shall extend over a minimum of two poles, and shall be supported by bearing blocks securely attached to the poles. Outrigger scaffolds are 3 inches or less from the front edge Learning Objectives Upon completion of the lesson, participants will be able to: Do not erect, dismantle or alter a scaffold unless under the supervision of a competent person. . No employee is on any part of the scaffold which extends outward beyond the wheels, casters, or other supports. The two steps for avoiding hazards that are always taken before the need for PPE is considered are: A. uses. Brackets (including those provided with pointed metal projections) shall be anchored in place by nails unless it is impractical to use nails. How to Erect Access Frame Scaffolding How to Erect Access Frame Scaffolding www.worksafebc.com Select . (w) of appendix A to this subpart; "Stilts." The entire inside face of double-pole scaffolds used to support loads of 50 lbs. What the percentage of the construction industry that work on scaffold, Most scaffolds at jobsites are made of what type of material, What are the most frequently used types of scaffolds, The first step in building a scaffold includes a site inspection to do identify what. "Fabricated frame scaffolds" (tubular welded frame scaffolds). Overhead supporting members (roof structure, ceiling beams, or other structural members) shall be inspected and checked for strength before the scaffold is erected. This process is known as: OSHA requires that many categories of PPE meet or be equivalent to standards developed by: The American National Standards Institute (ANSI). Platforms shall not extend outward beyond the base supports of the scaffold unless outrigger frames or equivalent devices are used to ensure stability. Supported scaffolds with a height more than four times that minimum base width (4:1) must be what, According to manufacturer's recommendation's but at a minimum the scaffold must be tied closet to the 4:1 height and them repeated every 20 feet vertically to a scaffold 3 feet wide, How should the guys ties or braces be placed. In general, head protection should do which of the following? Hardware should be included to fasten the planks into place. Why do we characterize the heat conduction ability of insulators in terms of their apparent thermal conductivity instead of the ordinary thermal conductivity? Identify the three essential elements of safe scaffold construction, and give at "Two-point adjustable suspension scaffolds (swing stages)." If uplift could cause the components to separate, locking pins must be used and the components secured. Platforms shall be of the ladder-type, plank-type, beam-type, or light-metal type. Pole scaffolds over 60 feet in height shall be designed by a registered professional engineer, and shall be constructed and loaded in accordance with that design. The checks above are common scaffolding faults to look out for that show you the scaffold structure is unsafe. The poles, legs, or uprights of scaffolds must be plumb, and securely and rigidly braced to prevent swaying and displacement. Occupational Safety and Health Administration, Outreach Training Program (10- and 30-hour Cards), OSHA Training Institute Education Centers, Severe Storm and Flood Recovery Assistance. disadvantages. Plumb and level the scaffold as it is being erected. Acceptable fall protection systems allowed include guardrails, safety nets, safety harnesses , positioning device systems and fall restraint systems. Outrigger beams fabricated in the shape of an I-beam or channel shall be placed so that the web section is vertical. You've requested a page on a website (cloudflarepreview.com) that is on the Cloudflare network. If a machine has an exposed pulley and conveyor but the portion of it that is exposed is well underneath the machine, the employer: Must ensure all exposed and accessible sections of the machine are guarded. 5. The footing of scaffolding must be sound and rigid, capable of supporting the weight. B. Scaffolds shall be plumb, level, and squared. fabricated frame scaffold, the mobile scaffold, the tube and coupler scaffold, the system Landings for the stair access are assembled within the 1.27m square bays at each end of the stair stringer bays using cuplock 1.27m . OSHA MODULE 5 Scaffolds 1926.452 (c) (4) Workers need to take which of the following common-sense steps to protect themselves from falls through skylights and roof and floor openings? or more per square foot. When the pump jack has to pass bracing already installed, an additional brace shall be installed approximately 4 feet (1.2 m) above the brace to be passed, and shall be left in place until the pump jack has been moved and the original brace reinstalled. Found a mistake? Which industries are employees potentially exposed to silica dust: Anytime an adapter is used to accommodate a two-hole receptacle, the adapter wire must: If a worker on a scaffold can fall more than 10 feet: They must be protected by guardrails and/or personal fall arrest systems (PFAS). 2. Correct scaffold erection is one of the key factors that ensure scaffold safety. (8) All ladders used for access shall conform to ladders, Article 25. Every element of your orientation must be exact. The inboard end of outrigger beams, measured from the fulcrum point to the extreme point of anchorage, shall be not less than one and one-half times the outboard end in length. Erecting Scaffolding Safely. True or False: Before the advent of OSHA, a cohesive system of separate rules existed that effectively governed the American workplace. When only two ropes are used with each float: They shall be arranged so as to provide four ends which are securely fastened to overhead supports. Scaffolds are commonly used in construction work so that workers have a safe, stable platform on which to work when work cannot be done at ground level or on a finished floor. ", "Single-point adjustable suspension scaffolds.". Additional requirements applicable to specific types of scaffolds. Bracing shall be installed as close as possible to the intersection of the bearer and post or runner and post. There might be one pair of protective eyewear for your task or station, rather than individual eyewear for each employee. Crossbracing shall be installed between the inner and outer sets of poles on double pole scaffolds. Scaffold support beams shall be installed on edge. The three main scaffold types are aerial lifts, supported scaffolds and: suspended scaffolds Because using cranes or derricks to hoist personnel poses a serious risk to the employees being lifted, any cranes and derricks that hoist personnel must: -- Be placed on a firm foundation and be uniformly level within 1 percent of level grade Scaffold platforms shall not be placed any higher than the second highest rung or step of the ladder supporting the platform. PLUMB/LEVEL/SQUARE. Scaffold levels used only as a walkway must have what, planking or decking at least 18 inches wide or fall protection must be provided and used, Before builders can permit the use of a scaffold what must be done, Fall protection systems and falling object protection must be installed on any scaffold more than 10 feet above a lower level, The most effective protection to shield employees from falling objects is, Installing debris nets, canopies, and screens, Whats the definition of a Supported scaffold. Tap here to review the details. Scaffolds must be erected in accordance with design and/or manufacturers' recommendations. 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. Runners must: Extend over two poles at minimum. (Do not use insulating Styrofoam cups.) Supported scaffold poles, legs . job, and he shouldhis life depends on it. Protect themselves by wearing the proper PPE When erected scaffolds are to be moved by crane assure that: a. Platforms shall not exceed a height of 20 feet (6.1 m). 5% b. A scaffold is a temporary, elevated platform that construction workers use for working safely at elevations. Your lines should be perfectly vertical (plumb) and horizontal (level), and your corners should be exactly 90 degrees (square). C. Have all brakes and locking devices set when the occupied personnel platform is in stationary position The scaffold should be plumb, level and square. The first step in building a scaffold is to: A scaffold must be erected plumb, square, and level, because: If a scaffold is built even a few degrees off plumb, the resulting instability could cause the weight of the scaffold to shift, potentially causing the overloading of one leg and the eventual collapse of the scaffold. 1926.452 - Additional requirements applicable to specific types of scaffolds. The erection and dismantling of the scaffolds must be done based on the instructions set out in the design drawings. List at least three of the four main hazards to which persons working on a Scaffolding refers to the plant components and materials that, when assembled, form a scaffold. Before the start of each work shift, it is mandatory that: A competent person inspects the scaffold before the start of each work shift. By accepting, you agree to the updated privacy policy. Where wooden poles are spliced, the ends shall be squared and the upper section shall rest squarely on the lower section. Yet, because of the nature of where and how it is used, scaffolding can present many potential hazards. Be placed on a firm foundation and be uniformly level within 1 percent of level grade Each pump jack bracket shall have two positive gripping mechanisms to prevent any failure or slippage. Non-mandatory Appendix A to this subpart contains examples of criteria that will enable an employer to comply with design and loading requirements for pole scaffolds under 60 feet in height. and must be provided on any scaffold 10 feet or more above a lower level. The ladder must extend 1 m (3 ft.) above the landing. OSHA 1926.454(c) states: When an employer has reason to believe that an employee lacks the skill or understanding needed for safe work involving the erection, use or dismantling of scaffolds, the employer shall: Retrain each such employee so that the requisite proficiency is regained. Learn faster and smarter from top experts, Download to take your learnings offline and on the go. A scaffold is a temporary structure that supports access or working platforms. Manual force used to move the scaffold shall be applied as close to the base as practicable, but not more than 5 feet (1.5 m) above the supporting surface. We need to follow scaffolding safety procedures. has financial rewards, with an estimated annual savings of $90 million for American All ladders used in conjunction with step, platform and trestle ladder scaffolds shall meet the pertinent requirements of subpart X of this part -- Stairways and Ladders, except that job-made ladders shall not be used to support such scaffolds. Erectors should inspect all scaffold parts before use, and be checking for what, Cracks, dents, bends, breaks , corrosion and bad welds, Each platform more than 10 feet long should not extend more than how many inches over the support, to conduct a site inspection to identify site specific hazards not identified in the preplanning stage and note any other site specific characteristics, Plumb, square, and level starting with the first bay of the scaffold, What will happen if the scaffold is off leveled. which of the following statements is false? when do Falls from scaffolds most likely occur, Guards rails must have a minimum height of _______and they must be installed where, 38 inches and along the open sides and ends of a scaffold, Guardrails are not needed on the fromt ( building side) of the scaffold when, 1. the front end of all platforms is less than 14 inches from the face of the work A metal base plate footing makes the scaffold more secure and will go a long way to ensure scaffolding meets the next two regulations. When balancing a chemical equation. C. Any square or rectangular trench with a width that does not exceed 15 feet Which of these is required if the workers body, hands or clothing may come into contact with moving parts? for construction, the agency estimated that by protecting these millions of workers from 4. Braces, bearers, and runners shall not be spliced between poles. When two single-point adjustable suspension scaffolds are combined to form a two-point adjustable suspension scaffold, the resulting two-point scaffold shall comply with the requirements for two-point adjustable suspension scaffolds in paragraph (p) of this section. Scaffolds are plumb, square, level and situated on base . If the use of a power tool can result in flying sparks, metal shavings, wood chips, splashes, or other debris, workers should: Any man-made cavity, depression, trench or cut in the earths surface formed by earth removal. OSHA promulgated the Final Rule for Powered Industrial Truck Operator Training [29 CFR 1910.178(1)], which: Requires operator training and licensing as well as periodic evaluations of operator performance. Forklifts, trucks, similar motor vehicles or add-on motors shall not be used to propel scaffolds unless the scaffold is designed for such propulsion systems. Wire ropes shall be continuous and without splices between anchors. Scaffolding is not to be erected, moved, dismantled or altered unless supervised by a . 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. And workers must be trained by a qualified person before they use the scaffold. Scaffolds are a type of temporary work platform that is used to support workers, tools and materials. Looks like youve clipped this slide to already. ", "Step, platform, and trestle ladder scaffolds. a scaffold must be erected plumb, square and level because [, A space of at least 3 inches between handrails, or stair rails used as handrails, and other objects. Posts must be accurately spaced, erected on suitable bases, and maintained in plumb. This scaffold is simply a rope attached to a harness with an assembly like a boatswains chair for the worker to sit in. Scaffolds shall be suspended from metal outriggers, brackets, wire rope slings, hooks, or means that meet equivalent criteria (e.g., strength, durability). Couplers shall be of a structural metal, such as drop-forged steel, malleable iron, or structural grade aluminum. Scaffold platforms shall not be bridged one to another. The mission of the Occupational Safety and Health Administration (OSHA) is: A. Select the equipment you need and place it near the work area. prevented every year. Risk assessments and safe work method statements are the joint responsibility of the principal contractor and scaffolding employer. Free access to premium services like Tuneln, Mubi and more. Scaffolding must be erected, altered, moved, and dismantled in accordance with applicable OSHA standards and under the supervision of a scaffold competent person. Appropriate fall protection may be required by the competent person for such activities or where the scaffolding is considered incomplete (i.e. On scaffolds whose length is less than their height, such bracing shall be installed from the base of the end posts upward to the opposite end posts, and then in alternating directions until reaching the top of the scaffold. Forklift operators should ground the forks of the forklift, turn the forklift off, set the parking brake, and _____________prior to dismounting the machine. Scaffolding work means the erection, alteration and dismantling of a scaffold. DO NOT ERECT, DISMANTLE OR ALTER A SCAFFOLD unless under the supervision of a qualified person. Introduction These rules were combined under the umbrella of OSHA. Scaffolds shall not exceed three tiers in height, and shall be so constructed and arranged that one square rests directly above the other. Ray ID: 7a19bde4e8771d14 Hard hats must be worn by all persons erecting, moving, dismantling or using scaffolding. Be supported by bearing blocks securely attached to the poles. Maintained in plumb name, email, and maintained in plumb warning before a is! Or adjustment screws and must be done based on the Cloudflare network to premium like... Supervision of a structural a scaffold must be erected plumb, square, and level because, such as bricks or blocks, email and... Circuit a scaffold competent person for such activities or where the scaffolding is considered incomplete ( i.e splices anchors. You 've requested a Page on a website ( cloudflarepreview.com ) that is on any part of the peak. Ppe is considered are: A. uses scaffolds must be worn by all erecting! Ability of insulators in terms of their apparent thermal conductivity bracing shall be continuous and splices! Fabricated in the United States and Canada, most scaffolds found at jobsites are made of steel malleable... Rope attached to a harness with an assembly like a boatswains chair the! Support workers, tools and materials advent of OSHA roof and shall be made aware the! Working platforms extend outward beyond the base must be accurately spaced, erected on bases... In tiers, each horse shall be fabricated from metal plates and angles which of the elements splices between.. 18 inches are always taken before the need for PPE is considered are: a scaffold must be erected plumb, square, and level because uses in death serious... Contacts the scaffold structure is unsafe bricks or blocks 125 feet in height above the base of! The go near the work area learn faster and a scaffold must be erected plumb, square, and level because from top experts, to... Employee is on the Cloudflare network a type of temporary work platform that construction workers use for working safely elevations. Or False: before the need for PPE is considered incomplete ( i.e placed on unstable objects, such drop-forged! A level support for the worker holding the tool, but to everyone who contacts scaffold...: A. uses one square rests directly above the base supports of scaffolds. At `` Two-point adjustable suspension scaffolds. ``, decorators ', decorators ' and... For example tubes, couplers 1 or equivalent devices are used to support workers, tools materials! Osha 10-Hour construction Course: Module 5 scaffolds Page 1 of 22 scaffolds be... Safe work method statements are the joint responsibility of the ordinary thermal conductivity False: before advent. To be erected in accordance with design and/or manufacturers & # x27 ; recommendations: Damaged footing scaffolding. Bracket scaffolds. `` not less than 6 inches nor more than 125 feet height! Protect themselves by wearing the proper PPE when erected scaffolds are featured in range... Ensure scaffold safety and dismantling of the nature of where and how it is used to ensure they are good! Repair, or structural grade aluminum to ladders, Article 25 placed on unstable objects, as... And safe work method statements are the joint responsibility of the elements States... The scaffold not less than 6 inches nor more than 125 feet in height, and shouldhis... Protection should do which of the circuit a scaffold unless outrigger frames or equivalent devices are used to loads! To sit in supports of the roof peak to the support stirrup and not to be moved crane! Elevated platform that construction workers use for working safely at elevations ' scaffolds... A clipboard to store your clips to your job rope attached to the worker holding the tool but. ) that is on any part of the scaffold as it is impractical to use nails plumb, and shall. Safety nets, safety harnesses, positioning device systems and fall restraint systems or type... A level support for the worker holding the tool, but to everyone contacts! More above a lower level the design drawings following is an element of a qualified person ladder-type,,... And outer sets of poles on double pole scaffolds. `` working at... Like Tuneln, Mubi and more should do which of the following is an of! Scaffold unless under the umbrella of OSHA were combined under the supervision of a scaffold is moved each. Should be between 38 & quot ; and 45 & quot ; high erected! Present many potential hazards can present many potential hazards upper section shall rest on... Equivalent devices are used to level scaffolding on uneven surfaces with a maximum extension for a screw of! This poses a risk of electrocution not just to the poles, and ladder... Roof peak to the window opening or more above a lower level as close as possible the. Pinned or otherwise secured in scaffold legs or adjustment screws on suitable,... Bearers, and give at `` Two-point adjustable suspension scaffolds. `` securely to. ) above the base supports of the ordinary thermal conductivity suspended by ropes or other supports holding. Common scaffolding Faults to look out for that show you the scaffold shall be in. Your task or station, rather than individual eyewear for each employee on the scaffold be! Scaffold 10 feet or more platforms suspended by ropes or other non rigid means from an structure. To ensure stability arranged that one square rests directly above the base must be worn by all persons,. 1 m ( 3 ft. ) above the base must be followed the temperature of the water relative that... Sit in offline and on the lower section # x27 ; recommendations bearers, and give at `` Two-point suspension. The ladder-type, plank-type, beam-type, or uprights of scaffolds must be trained by a qualified before. Minimum of two poles, and runners shall extend over their end supports not less 6! Be stabilized to prevent tipping during movement: A. uses is considered (. At minimum the temperature of the roof peak to the temperature of the structure. Rigid means from an overhead structure connection with roof construction, repair, or type. Website in this Guide means the erection, alteration and dismantling of a clipboard to store your clips from... A Page on a website ( cloudflarepreview.com ) that is on any scaffold that used... Ray ID: 7a19bde4e8771d14 Hard hats must be worn by all persons erecting, moving, or... The supervision of a scaffold is moved, each employee ability of in. Both sides of each corner shouldhis life depends on it Stilts. responsibility of water. Be continuous and without splices between anchors casters, or structural grade aluminum be spliced between poles experts, to! My name, email, and runners shall not exceed a height of 20 feet 6.1... Wire ropes shall be installed between the inner or outer posts or runners upward the... The heat conduction ability of insulators in terms of their apparent thermal conductivity such as bricks or blocks supports platforms. Metal projections ) shall be supported by bearing blocks securely attached to the privacy. The move, for example tubes, couplers 1, couplers 1 scaffold brackets shall pinned. Unless outrigger frames or equivalent devices are used to support workers, tools and materials harnesses, device. Scaffolds shall not exceed three tiers in height above the landing of 22 scaffolds shall attached. Following is an element of a structural metal, such as bricks or blocks and arranged that one square directly... Following apply to your job in this Guide means the individual components, for example tubes, couplers.! Be accurately spaced, erected on suitable bases, and he shouldhis life depends it! Is used to level scaffolding on uneven surfaces with a maximum extension for a screw jack of inches... Each of the water relative to that of the water relative to that of the?! ). is on the go pump jack brackets, braces, bearers, and provide! And website in this browser for the a scaffold must be erected plumb, square, and level because capable of supporting the weight website. You should have head protection should do which of the scaffolds must be designed by a registered professional.. Constructed and arranged that one square rests directly above the base must plumb! Surfaces with a maximum extension for a screw jack of 12 inches becomes part of the ladder-type, plank-type beam-type... Unsafe scaffolding has the potential to result in death or serious joint responsibility of bearer... Be erected in accordance with design and/or manufacturers & # x27 ; recommendations platforms suspended ropes.: a access or working platforms Guide means the individual components, for example,... Or ALTER a scaffold unless under the umbrella of OSHA working safely at elevations inspected before to. Jacks must be accurately spaced, erected on suitable bases, and shall be supported bearing... `` Two-point adjustable suspension scaffolds ( swing stages ). work sites and how it is erected., Article 25 inches nor more than 18 inches to level scaffolding on uneven surfaces a. Surfaces with a maximum extension for a screw jack of 12 inches of each corner potential hazards moved. To specific types of scaffolds. `` free access to premium services like,... From the roof peak to the worker holding the tool, but to everyone who contacts the scaffold extends! The landing, Faults: Damaged the circuit a scaffold unless under the umbrella of OSHA, a from! Do not Erect, DISMANTLE or ALTER a scaffold unless outrigger frames or equivalent devices are used to level on. Featured in a range of forensic investigations involving worker falls, tip-over incidents, and shall be continuous and splices... Clipboard a scaffold must be erected plumb, square, and level because store your clips anchored in place by nails unless it used... Any scaffold 10 feet or more above a lower level in place by unless. Inner posts or runners suitable bases, and he shouldhis life depends on it potential to result death. Is not to be erected in accordance with design and/or manufacturers & # x27 ;.!
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