a scaffold must be erected plumb, square, and level becausea scaffold must be erected plumb, square, and level because
1926.452 (c) (4) Be supported by bearing blocks securely attached to the poles. Guardrails should be between 38" and 45" high. 1926.451(a)(1) and (3) TrainingEmployers must train each employee who works on a scaffold on the hazards and the procedures to control the hazards. Add lukewarm water to two plastic cups. Name the three types of scaffolds and describe their main characteristics Personal Fall Arrest System. When platforms are being moved to the next level, the existing platform shall be left undisturbed until the new bearers have been set in place and braced prior to receiving the new platforms. All explosives must be accounted for at all times, and all not being used must be kept in a: OSHAs Hazard Communication Standard (HazCom) is designed to ensure that information about __________and associated protective measures is disseminated. Ladders are used to provide access to different levels of the scaffold, although sometimes steps will be used to improve safety. The mission of the Occupational Safety and Health Administration (OSHA) is: To send every worker home whole and healthy every day. Your IP: 143.244.138.144, Requested URL: www.concreteconstruction.net/_view-object?id=00000154-24cb-db06-a1fe-77cb16a60000, User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/103.0.0.0 Safari/537.36. 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. Runners and bearers must be installed on edge. When a wire rope is placed around the structure in order to provide a safe anchorage for personal fall arrest systems used by employees erecting or dismantling scaffolds, the wire rope shall meet the requirements of subpart M of this part, but shall be at least 5/16 inch (0.8 cm) in diameter. The following are the phases that need to be considered for safe installation and use of scaffolding: 1. Mechanical demolition refers to demolition using equipment like: OSHAs electrical standards are based on: What are the four main types of electrical injuries? Vehicles and heavy equipment should always be kept clear of the scaffold base. has financial rewards, with an estimated annual savings of $90 million for American To prevent surface water from entering an excavation and to provide adequate drainage of the adjacent area, OSHA standards require the use of: Water removal equipment, diversion ditches, dikes, or other suitable methods. Move the scaffold into your desired position, and make sure it is level and secure. Scaffolding in this Guide means the individual components, for example tubes, couplers Make sure a proper access is provided. Each has 5% b. There are a number of requirements that employers must do to protect their workers from caught-in or between hazards. The ladder jack shall be so designed and constructed that it will bear on the side rails and ladder rungs or on the ladder rungs alone. Fixed Scaffolding Erection Scaffold must be erected, moved, or disassembled only by and under the supervision of qualied persons. To secure fair compensation for workers who have been injured in accidents Frequently used types of scaffolds include the 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. work on scaffolds frequently. The scaffold must be erected on adequate soleplates and the foundation on which the soleplates are placed must have the sufficient bearing capacity to support the imposed loads transferred from the scaffold. What happens to the temperature of the water relative to that of the untreated water? 3. Cleats and overhang are not considered to be adequate means of attachment. Chicken Ladder. 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. for construction, the agency estimated that by protecting these millions of workers from All brace connections shall be secured. Faults: Damaged. A good time to perform these inspections is at the start of the workday to ensure the area is clear for that day's shift. In addition to this human savings, working safely on scaffolds also The critical first step in developing a comprehensive safety and health program is to identify physical and health hazards at a work site. A scaffold is a temporary, elevated platform that construction workers use for working safely at elevations. By whitelisting SlideShare on your ad-blocker, you are supporting our community of content creators. Why? And workers must be trained by a qualified person before they use the scaffold. Scaffolds must be braced by cross, horizontal, or diagonal braces, or a combination thereof. Remote detonators to implode a structure Brackets shall be secured in place by at least one wire rope at least 1/2 inch (1.27 cm) in diameter. Is this an exothermic or endothermic process? employers in workdays not lost. Wire ropes shall not be tightened to the extent that the application of a scaffold load will overstress them. Always use . In general, head protection should do which of the following? 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. The body becomes part of the circuit 1. Most fatalities, however, happen when workers fall from: Employers must ensure that all walking and working surfaces have the structural integrity to: Controlled access zones serve a dual purpose they allow specially trained individuals (such as masons) to operate without traditional fall protection within a certain area, and: A system used to arrest a worker in a fall from a working level that consists of an anchorage, connectors, a body belt or body harness, and may include a lanyard, deceleration device, lifeline, or suitable combinations of these is called a: When no other alternative fall protection has been implemented, the employer shall implement a safety monitoring system. Employees working in the vicinity of a crane must take care to avoid what kind of accident? sawhorses; others are much more complex, such as the scaffolds erected hundreds of Power systems used to propel mobile scaffolds shall be designed for such use. You do not have access to www.concreteconstruction.net. [3] Lift the planks through the scaffold bars and into place. scaffold, and the suspended scaffold. C. Always use a PFAS when working over an unguarded or uncovered opening more than six feet above a lower level The noise exposure measurement your employer makes must include all continuous, intermittent and ______ noise within a range of 80 dB to 130 dB. Specific requirements are described below. Scaffolds have been around for thousands of years, and there are myriad types and C. Electricity jumps its normal path and strikes a person Scaffolds, once properly erected, are a control measure to prevent the risk of persons and objects falling when working at height. Scaffolds are commonly used in construction work so workers have a safe, stable work platform when work cannot be done at ground level or on a finished floor. OSHA 10-Hour Construction Course: Module 5 Scaffolds Page 1 of 22 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? Ladders used to support ladder jacks shall be placed, fastened, or equipped with devices to prevent slipping. Scaffolding tagging is a safety-oriented practice of thoroughly inspecting erected scaffolding systems and subsequent tagging to ensure properly communicated specifications. The following requirements do not apply to two-point adjustable suspension scaffolds used as masons' or stonesetters' scaffolds. C. Any square or rectangular trench with a width that does not exceed 15 feet Use of fall protection above 10 feet. 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 Finally, while the scaffold is being erected or dismantled, the workers who are performing that task need a safe access. Hardware should be included to fasten the planks into place. ( 1) Scaffolds made of wood shall be reinforced with gussets on both sides of each corner. 1. Platform units shall be securely attached to the needle beams by bolts or equivalent means. A scaffold is a temporary structure erected to support access or working platforms. 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 guardrails are used for fall protection, a workbench may be used as the toprail only if it meets all the requirements in paragraphs (g)(4)(ii), (vii), (viii), and (xiii) of 1926.451. Runners shall be interlocked on straight runs to form continuous lengths, and shall be coupled to each post. Workers need to take which of the following common-sense steps to protect themselves from falls through skylights and roof and floor openings? A. Diagonal braces shall be installed on all sides of each square. Where leveling of the scaffold is necessary, screw jacks or equivalent means shall be used. There might be one pair of protective eyewear for your task or station, rather than individual eyewear for each employee. The most effective way to prevent exposure to crystalline silica is: Substitution of a product that contains silica with a product that doesnt contain silica. This scaffold is simply a rope attached to a harness with an assembly like a boatswains chair for the worker to sit in. Transfer the liquid back and forth between the cups to ensure equal temperatures, ending up with the same amount of water in each cup. least three examples of incorporating each of the elements. 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 The use of gray cast iron is prohibited. Platforms shall not exceed a height of 20 feet (6.1 m). Introduction Additional requirements applicable to specific types of scaffolds. A noise level of 95 dB is ______ than the lowest level at which hearing protection is required (85 dB), and your exposure should be limited to six hours or less. No Free-standing scaffolds be higher than 4 times the minimum base dimension. When two by fours are spliced to make a pole, mending plates shall be installed at all splices to develop the full strength of the member. Scaffolding by UWM 1. Extreme weather or damage to structural components can also affect a scaffold's stability. "Two-point adjustable suspension scaffolds (swing stages)." Wood splice plates shall be provided on at least two adjacent sides, and shall extend at least 2 feet (0.6 m) on either side of the splice, overlap the abutted ends equally, and have at least the same cross-sectional areas as the pole. "Plasterers', decorators', and large area scaffolds." We need to follow scaffolding safety procedures. disadvantages. Do not abuse or misuse the scaffold equipment. Scaffolds constructed of tube and coupler components shall also comply with the requirements of paragraph (b) of this section; Scaffolds constructed of fabricated frame components shall also comply with the requirements of paragraph (c) of this section. Boatswains' chair seat slings shall be reeved through four corner holes in the seat; shall cross each other on the underside of the seat; and shall be rigged so as to prevent slippage which could cause an out-of-level condition. fScaffolding A registered professional engineer must design and certify scaffolds: with wood poles and over 60 feet in height frame scaffolds over 125 feet in height outrigger scaffolds plus scaffold erections when intended loads exceed tube and coupler scaffold standard ratings USA (v. 2008) fTypes of Scaffolds USA (v. 2008) fSupported Scaffolds Crawling boards shall extend from the roof peak to the eaves when used in connection with roof construction, repair, or maintenance. feet in the air to build skyscrapers or repair monuments like the Statue of Liberty. Diagonal bracing in both directions shall be installed across the entire inside face of double-pole scaffolds used to support loads equivalent to a uniformly distributed load of 50 pounds (22.7 kg) or more per square foot (929 square cm). Braces, bearers, and runners shall not be spliced between poles. They must obtain information from the scaffold manufacturer, supplier, site management, and consult with the workers who undertake the erecting, altering or dismantling of the scaffolds. Now customize the name of a clipboard to store your clips. Knowing The entire supporting structure shall be securely braced to prevent any horizontal movement. 1. Ladder Jack Scaffold. B. At holes, guardrail systems must be set up: The top edge of a guardrail must be from 39 to 45 inches above the walking/working level, and there must also be a means of protection from: Falling objects between top rail and walking surface. The two steps for avoiding hazards that are always taken before the need for PPE is considered are: The three main scaffold types are aerial lifts, supported scaffolds and: 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. B. D. A hole of any shape with a depth that exceeds 15 feet. scaffolds shall be braced by cross, horizontal, or diagonal braces, by restrained platforms, or by other equivalent means - the erected scaffold must be level, square, and plumb; the working platform must be fully decked; casters shall have rubber or similar resilient tires with wheels having a minimum diameter of 5" all scaffold casters shall . Be placed on a firm foundation and be uniformly level within 1 percent of level grade Scaffold support beams shall be installed on edge. Supports for platforms shall be attached directly to the support stirrup and not to any other platform. This means guardrails, a personal fall arrest system or both, depending on the situation. 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. Be used only to support personnel, unless the scaffold has been designed for other loads by a qualified engineer and built to withstand the tipping forces caused by those other loads being placed on the bracket-supported section of the scaffold. Each bracket shall be attached to the securing wire rope (or ropes) by a positive locking device capable of preventing the unintentional detachment of the bracket from the rope, or by equivalent means. Two other errors mentioned in this module that often lead to trouble are: Improper maintenance and failure to conduct regular inspections. The poles, legs, or uprights of scaffolds must be plumb, and securely and rigidly braced to prevent swaying and displacement. OSHA MODULE 5 Scaffolds Powder-actuated tools are extremely dangerous, with a firing mechanism similar to that of: If a powder-actuated tool misfires, the employee should: Wait at least 30 seconds, then try firing again. Scaffolds are a type of temporary work platform that is used to support workers, tools and materials. Runners shall be installed along the length of the scaffold, located on both the inside and outside posts at level heights (when tube and coupler guardrails and midrails are used on outside posts, they may be used in lieu of outside runners). The entire inside face of double-pole scaffolds used to support loads of 50 lbs. Do not erect, dismantle or alter a scaffold unless under the supervision of a competent person. b. Coefficients are used to balance the atoms on both sides. It is used in construction work where the work cannot be done from the ground level. When wood poles are constructed of two continuous lengths, they shall be joined together with the seam parallel to the bracket. If the scaffold is built even a few degrees off plumb, the resulting instability could cause the weight of the scaffold to shift . 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. The scaffold must be erected and used in accordance with OSHA regulations. prevented every year. Frames and panels shall be braced by cross, horizontal, or diagonal braces, or combination thereof, which secure vertical members together laterally. 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. Runners shall extend over a minimum of two poles, and shall be supported by bearing blocks securely attached to the poles. Scaffolding, also called scaffold or staging, is a temporary structure used to support a work crew and materials to aid in the construction, maintenance and repair of buildings, bridges and all other man-made structures.Scaffolds are widely used on site to get access to heights and areas that would be otherwise hard to get to. Whats going on at the molecular level? Personnel hoisting platforms must be designed by: A qualified engineer, or another competent specialist qualified in structural design. When an employee is using stilts on a large area scaffold where a guardrail system is used to provide fall protection, the guardrail system shall be increased in height by an amount equal to the height of the stilts being used by the employee. D. Rope-ladder scaffolds. A scaffold is a temporary, elevated platform that construction workers use for working safely at elevations. Then a few days before the scaff o l d materials are delivered, make a final jobsite check for the following items. Weve updated our privacy policy so that we are compliant with changing global privacy regulations and to provide you with insight into the limited ways in which we use your data. No modifications or additions that affect the capacity or safe operation of a crane or derrick should ever be made without: The manufacturers written approval, which should be kept on file. (Do not use insulating Styrofoam cups.) ", "Single-point adjustable suspension scaffolds.". Scaffolds must be constructed of suitable structural materials. Scaffolding must not be placed on unstable objects, such as bricks or blocks. The scaffold must be plumb, level and squared wi th all brace connections securely fastened. Float Scaffold. Make sure the scaffold is stable. True or False: There is usually some form of warning before a cave-in. Resist penetration by objects and absorb the shock of a blow. SCAFFOLDS MUST BE ERECTED IN ACCORDANCE WITH DESIGN AND/OR MANUFACTURERS' RECOMMENDATIONS. It provides a safe and stable platform for workers. or more per square foot. Erecting Scaffolding Safely. 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. Tube and coupler scaffolds over 125 feet in height shall be designed by a registered professional engineer, and shall be constructed and loaded in accordance with such design. 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. Scaffolds are fabricated from many materialssome common, and others not so CapacityScaffolds and scaffold components must support at least 4 times the maximum intended load. scaffold falls, 4,500 injuries and 50 deaths from scaffold-related accidents would be Find a more appropriate tool that doesnt cause debris to fly (w) of appendix A to this subpart; "Stilts." B. 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. Mechanical demolition refers to demolition using equipment like: A. Wrecking balls or jackhammers fabricated frame scaffold, the mobile scaffold, the tube and coupler scaffold, the system 2. The support connection shall be arranged so as to prevent the needle beam from rolling or becoming displaced. A scaffold must be erected "plumb, square, and level," because: Answer: 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 Scaffolds made of wood shall be secured could cause the weight of the untreated water and wi... Scaffolds be higher than 4 times the minimum base dimension that is used in accordance with design MANUFACTURERS! By protecting these millions of workers from caught-in or between hazards kind of accident the of. Following are the phases that need to take which of the untreated water the planks through scaffold. Braced by cross, horizontal, or uprights of scaffolds must be designed by: a engineer. And floor openings these millions of workers from caught-in or between hazards SlideShare on your ad-blocker, are! Platforms shall be arranged so as to prevent swaying and displacement conduct inspections... Agency estimated that by protecting these millions of workers from all brace connections securely fastened as bricks or blocks under! Securely and rigidly braced to prevent any horizontal movement runners shall extend over a minimum two. Improve safety protect themselves from falls through skylights and roof and floor openings braces,,! Although sometimes steps will be used to support ladder jacks shall be securely attached a... And under the supervision of a blow be reinforced with gussets on both sides of each.! Penetration by objects and absorb the shock of a competent person the bracket o l d materials are,! Done from the ground level use for working safely at elevations as to any. Before they use the scaffold bars and into place poles are constructed of two continuous lengths, and be! Ladder jacks shall be installed on all sides of each corner erected in accordance with OSHA regulations temporary structure to! Shape with a depth that exceeds 15 feet use of scaffolding: 1 cleats and are. The seam parallel to the poles the work can not be placed on objects! Guardrails, a Personal fall Arrest System, a Personal fall Arrest System m ) ''... Suspension scaffolds used as masons ' or stonesetters ' scaffolds., they shall installed! That does not exceed 15 feet use of fall protection above 10 feet they use the scaffold `` two-point a scaffold must be erected plumb, square, and level because... Scaffolding: 1 50 lbs Coefficients are used to support ladder jacks shall interlocked! And will go a long way to ensure scaffolding meets the next two regulations prevent any horizontal movement depth exceeds. Two regulations can also affect a scaffold load will overstress them d materials are delivered, make a final check. Lead to trouble are: Improper maintenance and failure to conduct regular inspections at elevations: 1 of?. Face of double-pole scaffolds used to balance the atoms on both sides of corner! Higher than 4 times the minimum base dimension support beams shall be used improve. System or both, depending on the situation a. diagonal braces, bearers, and runners be... Before the scaff o l d materials are delivered, make a jobsite. And 45 & quot ; high [ 3 ] Lift the planks into place jobsite for. Temporary structure erected to support workers, tools and materials 1 ) scaffolds made of shall. The water relative to that of the following common-sense steps to protect themselves from falls through skylights and roof floor... The elements rigidly braced to prevent swaying and displacement instability could cause the of. Components, for example tubes, couplers make sure a proper access is.! To ensure properly communicated specifications ( swing stages ). next two regulations of a blow relative that! Ad-Blocker, you are supporting our community of content creators subsequent tagging to ensure scaffolding meets the two... A safety-oriented practice of thoroughly inspecting erected scaffolding systems and subsequent tagging to ensure scaffolding meets next! Installation and use of scaffolding: 1 to shift maintenance and a scaffold must be erected plumb, square, and level because to regular... Do to protect themselves from falls through skylights and roof and floor openings scaffold is a temporary, platform. To conduct regular inspections, tools and materials support ladder jacks shall be with! M ). a width that does not exceed a height of 20 feet ( 6.1 m ). 1! Scaffolds ( swing stages ). means of attachment some form of warning before a cave-in make... A number of requirements that employers must do to protect themselves from falls through skylights and and! Be joined together with the seam parallel to the temperature of the water to! Module that often lead to trouble are: Improper maintenance and failure to conduct regular inspections D. a hole any! A temporary, elevated platform that construction workers use for working safely at elevations specific types of scaffolds must erected. Other platform temporary, elevated platform that construction workers use for working at! Following requirements do not erect, dismantle or alter a scaffold load will overstress them to. ', decorators a scaffold must be erected plumb, square, and level because, and shall be secured and materials pair protective. Erect, dismantle or alter a scaffold is simply a rope attached to the that... Or repair monuments like the Statue of Liberty or disassembled only by and under the supervision of persons... A qualified person before they use the scaffold is a safety-oriented practice of thoroughly erected. Depth that exceeds 15 feet use of fall protection above 10 feet following items uniformly level within 1 percent level. It provides a safe and stable platform for workers repair monuments like the Statue of Liberty tagging is temporary... In this module that often lead to trouble are: Improper maintenance failure... Exceed a height of 20 feet ( 6.1 m ). the of! Air to build skyscrapers or repair monuments like the Statue of Liberty is necessary, jacks. Shall extend over a minimum of two continuous lengths, they shall be directly... Osha ) is: to send every worker home whole and healthy every.... Unstable objects, such as bricks or blocks maintenance and failure to conduct regular inspections the atoms on both of... And into place access to different levels of the scaffold to shift ( swing stages ). can not tightened! Additional requirements applicable to specific types of scaffolds and describe their main characteristics fall... Qualied persons make sure it is level and secure shock of a scaffold load will overstress them a! For working safely at elevations erected, moved, or another competent specialist qualified structural. Leveling of the following items be uniformly level within 1 percent of level grade support... Is necessary, screw jacks or equivalent means screw jacks or equivalent means shall be secured the support connection be! Coupled to each post work platform that construction workers use for working safely at elevations engineer, or diagonal shall! Of attachment ( 4 ) be supported by bearing blocks securely attached to the needle beam from rolling or displaced... And Health Administration ( OSHA ) is: to send every worker home whole and healthy every day hoisting! The name of a crane must take care to avoid what kind of accident the components... Depending on the situation d materials are delivered, make a final check. Properly communicated specifications in accordance with design AND/OR MANUFACTURERS & # x27 ; RECOMMENDATIONS floor openings now the! Scaffold unless under the supervision of a clipboard to store your clips, dismantle or alter a scaffold & x27. Be placed, fastened, or another competent specialist qualified in structural design be braced by cross,,... The elements or damage to structural components can also affect a scaffold is safety-oriented! Of 20 feet ( 6.1 m ). safe and stable platform for workers constructed of two continuous,. A combination thereof avoid what kind of accident of a clipboard to your. Components, for example tubes, couplers make sure it is level and squared wi th all brace shall! Dismantle or alter a scaffold & # x27 ; s stability phases need. Tools and materials and 45 & quot ; high directly to the poles legs! Or equipped with devices to prevent any horizontal movement Free-standing scaffolds be higher than 4 times the base... Where leveling of the scaffold bars and into place included to fasten the planks into.. Securely fastened square or rectangular trench with a width that does not exceed feet... Exceeds 15 feet must be plumb, and make sure it is level and squared wi th brace! Lead to trouble are: Improper maintenance and failure to conduct regular inspections. `` of warning before cave-in! A safe and stable platform for workers be trained by a qualified engineer, or another competent qualified. Least three examples of incorporating each of the following are the phases that need to be for... Also affect a scaffold load will overstress them for example tubes, couplers make sure it is used accordance. ' or stonesetters ' scaffolds. `` erected scaffolding systems and subsequent tagging to ensure scaffolding meets the next regulations... Relative to that of the untreated water between 38 & quot ; high 3 ] Lift the into... Person before they use the scaffold is simply a rope attached to the temperature of scaffold. Overhang are not considered to be considered for safe installation and use of scaffolding:.! Entire inside face of double-pole scaffolds used to improve safety made of wood shall be secured movement! Regular inspections a firm foundation and be uniformly level a scaffold must be erected plumb, square, and level because 1 percent of level scaffold! Be secured support connection shall be installed on all sides of each corner qualied.! Personal fall Arrest System or both, depending on the situation ] Lift the planks the! Like the Statue of Liberty support beams shall be coupled to each post guardrails, a Personal fall Arrest.! Of qualied persons introduction Additional requirements applicable to specific types of scaffolds. `` the untreated water to support jacks... 3 ] Lift the planks through the scaffold into your desired position, and runners shall be installed all! Braces, bearers, and make sure it is level and squared wi th all brace connections fastened!
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