References: EM 385-1-1 Section 15 OSHA 1926.251 UFGS 01 35-26
Rigging Safety Rigging equipment shall be inspected as specified by the manufacturer, by a Competent Person, before use on each shift and as necessary during its use to ensure that it is safe. 15.A.01.a
Defective Rigging Defective rigging shall be removed from service. 15.A.01.b
Wire Rope Slings If these happen, remove the wire rope sling from service Bird Caging Kinking Crushing
To help protect your privacy, PowerPoint has blocked automatic download of this picture. Latching Devices When hoisting loads, a positive latching device shall be used to secure the load and rigging (i.e. selfclosing safety latches, hook with springloaded gate, an alloy anchor type shackle with a bolt, nut and retaining pin). 15.A.05
Personnel Qualifications Any worker acting in the capacity of Rigging Lift Supervisor shall meet the requirements of Section 15. 15.B.01
Personnel Qualifications Any worker engaged in the duties and the performance of rigging shall be a Qualified Rigger and as such shall meet the following requirements: Be at least 18 years of age; Be able to communicate effectively with the crane operator, the lift supervisor, flagman and affected employees on site; Have basic knowledge and understanding of equipment operating characteristics, capabilities and limitations. 15.B.02
Multiple Lift Rigging Multiple lift rigging is prohibited. Multiple lift rigging is allowed for the purpose of erecting/placing structural steel ONLY. 15.C.01
Rigging Equipment Slings Types of slings include alloy steel chain, wire rope, metal mesh, natural or synthetic fiber rope, and synthetic web. Chain Wire rope Metal mesh Synthetic
Wire Rope Wire rope must be inspected, maintained and replaced per section 16.D.12.
Defective Wire Ropes Wire rope removed from service due to defects shall be cut up or plainly marked as unfit for further use as rigging. 15.D.02
U-Bolts Wire rope clips attached with U- bolts shall have the U-bolts on the unloaded (dead) or short end of the rope. 15.D.03
Wedge Socket Fastening Loop Back Method Extra Rope Method Special Clip Method When a wedge socket fastening is used, the unloaded (dead) or short end of the wire rope shall be looped back and secured to itself by a clip. 15.D.04
Protruding Ends Protruding ends of strands in splices on slings and bridles shall be covered or blunted. 15.D.05
Eye Splices An eye splice n any wire rope shall have not less than five full tucks (this requirement shall not preclude the use of another form of splice or connection than can be shown to be as efficient and that is not otherwise prohibited). 15.H.07.a
Chains Only alloyed chain shall be used in rigging. Just welded and trimmed, self color. 15.E.01
Inspections Chain shall be inspected before initial use and weekly thereafter. Inspect chains on an individual link basis. Chains shall be cleaned before they are inspected, as dirt and grease can hide nicks and cracks. 15.D.02
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Chains When used with alloy steel chains, hooks, rings, oblong links, pear-shaped links, welded or mechanical coupling links, or other attachments shall have a rated capacity at least equal to that of the chain. 15.E.03
Slings Synthetic webbing slings shall be inspected for acid or caustic burns. Heat Damage 15.G.01.b.1
Protection Pads Protection shall be provided between the sling and sharp unyielding surfaces of the load to be lifted. 15.G.03
Sling Markings Welded alloy steel chain slings shall have affixed durable permanent identification stating size, grade, rated capacity, and sling,manufacturer. 15.G.05
Sling Markings The employer shall have each synthetic rope sling, metal mesh sling, synthetic web sling, or round sling marked or coded to show name or trademark of the manufacturer, rated capacities for the type of hitch, and type of material. 15.G.07
Rigging Hardware Drums, sheaves, and pulleys shall be smooth and free of surface defects that may damage rigging. 15.H.01
Rigging Hardware Max twist 10 Hooks that have been opened more than 15% of the normal throat opening or twisted more than 10% from the plane of the unbent hook are considered defective. 15.H.01.a
Shackles Only marked shackles (marked by manufacturer with name or trademark of manufacturer, rated load and size) shall be used. Shackles shall be maintained by the user so as to be legible throughout the life of the shackle. 15.H.06.a
Hooks Open hooks are prohibited in rigging used to hoist load. 15.H.07.b
Sheaves Sheaves shall be compatible with the size of rope used, as specified by the manufacturer. 15.H.09.a
Hardware Each turnbuckle, eye nut and eye bolt shall be marked with name or trademark of manufacturer, size or rated load and grade. Markings shall remain legible. 15.H.10.c
Taglines Loads must be kept in control at all times. Where personnel may be endangered by the rotation of the load, one or more guide ropes or taglines should be used to prevent rotation or uncontrolled motion. Any load that goes above the shoulder needs a tagline, unless that tagline creates a hazard. The tagline should be long enough so no one gets near the load. The bigger the load, the longer the tagline. However, the tagline should not be so long that it gets hung up or drags on anything it might have to pass over
Taglines (Cont) Loads that are being raised to other personnel need to be controlled when they reach the designated placement area. For high work, the tagline should be about 10 feet in length so that the worker can grab it and guide the load into position without having to put his/her hands on the load or get his/her feet to close to it. A steel beam, hanging from a crane s hook, 500 feet in the air can have a mind of its own. Anyone trying to catch that load is in danger of being struck.
Taglines (Cont) The type of rope used for taglines is not important unless working around power lines. Although the National Institute of Occupational Safety & Health (NIOSH) recommends using non-conductive links, chokers or taglines when working in proximity to overhead power lines, there is no such thing as nonconductive taglines. The best that any rigger can do is to select the most common type that offers the least moisture retention property. The following may be considered: TYPE: Water Absorption Manila rope - Up to 100% Nylon - 2.0%-6.0% Polyester - < 1.0% Polypropylene - None Polyethylene - None