rigging

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## 29 CFR 1926 (OSHA) - (iii) Lumber shall be so stacked as to be stable and self-supporting. - (iv) Lumber piles shall not exceed 20 feet in height provided that lumber to be handled manually shall not be stacked more than 16 feet high. - (9) Structural steel, poles, pipe, bar stock, and other cylindrical materials, unless racked, shall be stacked and blocked so as to prevent spreading or tilting. - (c) Housekeeping. Storage areas shall be kept free from accumulation of materials that constitute hazards from tripping, fire, explosion, or pest harborage. Vegetation control will be exercised when necessary. - (d) Dockboards (bridge plates). (1) Portable and powered dockboards shall be strong enough to carry the load imposed on them. - (2) Portable dockboards shall be secured in position, either by being anchored or equipped with devices which will prevent their slipping. - (3) Handholds, or other effective means, shall be provided on portable dockboards to permit safe handling. - (4) Positive protection shall be provided to prevent railroad cars from being moved while dockboards or bridge plates are in position. - [44 FR 8577, Feb. 9, 1979; 44 FR [redacted postal code], Apr. 6, 1979, as amended at 49 FR [redacted postal code], Apr. 30, 1984; 54 FR [redacted postal code], June 7, 1989; 58 FR [redacted postal code], June 30, 1993; 59 FR [redacted postal code], Aug. 9, 1994; 61 FR 5510, Feb. 13, 1996] ## §1926.251 Rigging equipment for material handling. - (a) General. (1) Rigging equipment for material handling shall be inspected prior to use on each shift and as necessary during its use to ensure that it is safe. Defective rigging equipment shall be removed from service. - (2) Employers must ensure that rigging equipment: - (i) Has permanently affixed and legible identification markings as prescribed by the manufacturer that indicate the recommended safe working load; - (ii) Not be loaded in excess of its recommended safe working load as prescribed on the identif…

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<!-- image --> - M. ADJUSTABLE SUSPENDED PLATFORMS MUST NEVER BE OPERATED NEAR LIVE POWER LINES unless proper precautions are taken. Contact the power service provider for advice. - N. ALWAYS UTILIZE FALL ARREST EQUIPMENT when working on adjustable suspended scaffolds or when working near unguarded edges. - O. DO NOT WORK FROM, INSTALL OR MOVE ADJUSTABLE SUSPENDED SCAFFOLDS if you are sick or impaired in any way. - P. DO NOT WORK ON ADJUSTABLE SUSPENDED SCAFFOLDS when under the influence of alcohol or drugs. - Q. DEBRIS SHOULD NOT BE STORED OR ALLOWED TO ACCUMULATE ON A PLATFORM. - R. INDEPENDENT ADJUSTABLE SUSPENDED SCAFFOLDS ARE TO BE POSITIONED SO AS TO AVOID OVERLAPPING OR POSSIBLE INTERFERENCE FROM ANOTHER SCAFFOLD. ## II. GUIDELINES FOR ERECTION AND USE OF ADJUSTABLE SUSPENDED SCAFFOLD SYSTEMS ## A. RIGGING: - 1. UTILIZE FALL PROTECTION EQUIPMENT when rigging near unguarded edges. - 2. SUPPORTING DEVICES must be capable of supporting the hoist-rated load with a safety factor of four. - 3. ALL OVERHEAD RIGGING must be secured from unwanted movement in any direction. - 4. COUNTERWEIGHTS USED WITH OUTRIGGER BEAMS must be of a non-flowable material and must be secured to the beam to prevent accidental displacement. - 5. OUTRIGGER BEAMS THAT DO NOT USE COUNTERWEIGHTS must be installed and secured to the roof structure with bolts or other direct connections. Direct connections shall be evaluated by a competent person. - 6. TIE BACK ALL TRANSPORTABLE RIGGING DEVICES. Tieback shall be equivalent in strength to the suspension ropes. - 7. INSTALL TIEBACKS AT RIGHT ANGLES TO THE FACE OF THE BUILDING and secure them without slack, to a suitable anchor capable of supporting the hoist-rated load with a safety factor of four. - 8. IN THE EVENT THAT TIEBACKS CANNOT BE INSTALLED AT RIGHT ANGLES, two tiebacks at opposing angles must be used to prevent movement. - 9. RIG AND USE HOISTING MACHINES DIRECTLY UNDER THEIR SUSPENSION POINTS to prevent movement or side loading. ##…

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## General operating instructions - 1. Assemble the scaffold and rigging equipment according to the instructions in this manual or those supplied with the equipment. (Refer to the precautions in the preceding sections.) - 2. All rigging devices and installations must be able to support the load. An engineer or someone who is trained and capable of determining whether the structure is large enough and strong enough to bear the load should examine structural members. The structure must be able to bear a wire rope load of 4 times the maximum rated load capacity of the hoist. The gross load of equipment, material, and the workers being lifted by each wire rope must not exceed the rated load capacity of the hoist. The structural members intended to support the load must not have cracked or weakened material. - 3. Examine the structure for other safety hazards. - · De-energize and lock out electrical lines in &amp;amp; near the path traveled by the equipment. No live power lines are allowed within 10 ft. of the scaffolding or scaffolding extension. - · Remove obstructions to vertical travel, or clearly identify them to equipment users. - · Locate cranes or other lifts. All equipment users should know the location of all other workers on the structure to avoid coming in contact with them. - 4. Assemble the rigging device to the structure so the suspension line hangs plumb and passes through the scaffold equipment wire rope guide. If the wire rope is pulled off at an angle from the guide, it could wear and become weak. - · Identify and remove other hazards, such as the danger of falling material. - 5. Provide separate rigging attachments for worker safety lines in case the suspension line rigging fails. - 6. With the scaffolding equipment resting upright on the ground directly under the rigging points, connect it to the proper power supply. Place the fairlead side (front) toward the face of the structure. This provides greater stability and minimizes the amount of thrust-o…

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## III. Wire rope and hardware guidelines - 1. Use only wire rope and attachments as specified by the hoisting machine manufacturer. Do not use wire rope that is kinked, birdcaged, corroded, undersized, or damaged in any way. - 2. Be sure that wire rope is long enough to reach the lowest possible landing. - 3. Clean, lubricate &amp;amp; handle wire rope in accordance with wire rope or hoist manufacturer's instructions. - 4. Coil and uncoil wire rope in accordance with the wire rope or hoist manufacturer's instruction in order to avoid kinks or damage. - 5. Use thimbles at all wire rope suspension terminations. - 6. Use J-type clamps or swaged fittings to fasten wire rope. DO NOT USE U-CLAMPS. - 7. Tighten wire rope clamps in accordance with the clamp manufacturer's instructions. - 8. Wire ropes used in traction hoists must have prepared ends in accordance with the manufacturer's recommendation. - 9. INSPECT WIRE ROPE DURING EACH ASCENT AND DESCENT. Do not expose wire rope to fire, undue heat, corrosive atmosphere, chemicals, to passage of electrical currents, or to damage by tools or handling. ## IV. Power supply guidelines - 1. BE SURE YOUR POWER SUPPLY CONFORMS TO HOIST MANUFACTURER'S RECOMMENDATIONS. - 2. GROUND ALL ELECTRICAL POWER SOURCES and POWER CORD CONNECTIONS. Protect with circuit breakers. - 4. Power cord or air hose connections must be restrained to prevent their separation. - 3. Use power cords or air hoses of proper size that are long enough for the job. - 5. Tie off power cords or air hoses at the suspended scaffold to prevent them from falling. - 6. Protect power cords or air hoses at sharp edges. - 7. Remember, air hoist require clean, lubricated air. ## V. Fall-arrest equipment guidelines - 1. Each person on a suspended powered scaffold must be attached to a fall-arrest system at all times. - 2. Each lifeline must be fastened to a separate anchorage. - 3. When wrapping lifelines around structural members, the lines must be protected and a sui…

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- protected by a safety lifebelt attached to a lifeline. The lifeline shall be securely attached to substantial members of the structure (not scaffold), or to securely rigged lines, which will safely suspend the worker in case of a fall. - 11. Two-point suspension scaffolds shall be securely lashed of the building or structure to prevent them from swaying. Window cleaners' anchors shall not be used for this purpose. - 10. Where acid solutions are used, fiber ropes are not permitted unless acid-proof. ## I. Single-point adjustable suspension scaffolds. - 8. The hoisting machines, cables, and equipment shall be regularly serviced and inspected after each installation and every 30 days thereafter. - 9. The units may be combined to form a two-point suspension scaffold. Such scaffold shall comply with paragraph (g) of this section. - 10. The supporting cable shall be straight for it's entire length, and the operator shall not sway the basket and fix the cable to any intermediate points to change his original path of travel. - 11. Equipment shall be maintained and used in accordance with the manufacturers' instructions, - 12. Suspension methods shall conform to applicable provisions of paragraph (g) and (h) of this section. ## Code of safe practices for suspended powered scaffolds It shall be the responsibility of all employers and users to read and comply with the following common-sense guidelines, which are designed to promote safety in the erection and use of suspended powered scaffolds. These guidelines are not allinclusive, nor do they supplant or replace other additional safety and precautionary measures to cover usual and unusual conditions. If these guidelines conflict in anyway with state, local, or federal statute or governmental regulation, said state statute or regulation shall supersede these guidelines, and it shall be the responsibility of each employer and user to comply therewith and also to be knowledgeable and understand all state, local or fed…