A dogging licence is not required to sling and direct a load when the load remains in the clear view of the plant operator and there is no. Each sling has a tag sewn to it with the type, size and rated capacities 8. Lifting equipment awareness load slinging training and assessment 6 8 hours course objective to provide the learners with the knowledge and practical skills necessary to comply with workplace compliance requirements in line with duty of care. There are many rigging methods for different kinds of loads being handled.
Slinging techniques 15 july 2009 in the latest of a series of articles on complex rigging situations, derrick bailes looks at various techniques for attaching slings to the load and adjusting the sling length to achieve the correct geometry. Carry out preuse checks and recognise the actions to be taken with defective. Large precast units, plant such as air handling units, generators etc. Legislative requirements and code of practice of lifting operations 2 4. Note the capacity for the vertical, choker and basket hitch are different. Safe use of slings shackles must always be used on lifting hooks if more than one sling is to be connected to it and if the hook would be overcrowded. Licence to perform this course is classified as high risk.
Also for the study of scientific principles and a technical approach to slinging. Lecture notes, audio visual presentation and specific items of. Slinging, lifting and moving materials and components. W share of load weight load weight slw share of load weight r srun rs total run span l sling length h height ts tension in sling. Form 1211 e, requirements for fm 5125, rigging techniques, procedures, and applications qty rqr block no. Lifting hook is positioned oven the load centne of gnavity. For example, when a 1inch wire rope sling is used to lift an object that measures 25 inches in diameter, the dd ratio is 25to1 written 251. Another of my series on slings this time the techniques of using them. This comprehensive guide is over 90 pages and features dozens of detailed photos for every process. This manual identifies the basic hazards in rigging and hoisting, explains the. Incident at a shipyard in malasia dramatic photos of an accident as it is occurring. Lifting techniques a usachppm information bulletin promoting better health through public awareness copying and distribution of this pamphlet is authorized and encouraged ergonomics pro gram sponsored by. Position the object close to the knee on the ground. For support as you lower yourself down, put one hand on a stool or on your thigh for support.
Slings can be made of chain, wire, metal mesh, natural, and synthetic materials. Pdf when slings are used to lift loads, safety professionals must ensure the weight does not exceed the safe working load limit wll of the. High risk work licensing for dogging information sheet table 1 conditions when a dogger is or is not required activity a dogger is required dogger is not required if all the conditions below are met. Using a best approximation of an apache slinging technique as described at. The angle between sling legs on a hook must never exceed 90. Never use a sling in a basket format, as this can drastically overload the. Rigging equipment english discusses safety precautions to take in equipment rigging. Application of the unit application of the unit this unit covers the scope of. Make sure the rated capacity of each sling is adequate for the load. Where documents and drawings are referenced, the user must always check that. It includes basic instructions on knots, hitches, splices, lashing, and tackle systems.
Course outcome on successful completion participants are issued. The content of the pnnl hoisting and rigging manual was derived from the hanford site hoisting and rigging manual doerl9236. This is a basic rigging course designed to suit the requirements of learners who have limited or no knowledge of rigging, lifting and slinging techniques. Wrapping the load is a legitimate method of minimizing excessive sling length. Keep your back straight, push your buttocks out and slowly lower yourself down onto one knee. Mainly because the open character of the truss structure allows for so much more routes for a sling compared to the classic solid beams. Lifting operations our expectations balfour beatty.
Sling a loop of material that connects the load to the lifting device. When the horizontal distance between the attachment points on the load is less than the length of the shortest sling leg, then the angle is greater than 60 and generally safe. Cpccst2005a carry out load slinging of offsite materials. It is intended for use in training and as a reference manual for field operations.
The content of the pnnl hoisting and rigging manual was derived from the. If it is necessary to use a nylon sling in a radiation. Actual finished length of a sling, inclusive of fittings, from bearing. To be issued with your licence, you will need to present this paperwork to the territory business centre. Pdf introduction to sling load tension calculations. Alternatively, the d can refer to the crosssectional diameter of the eye, hook, or other object being used to hoist the load, as shown in the figure at right. On a four leg sling only two of the legs may be carrying the majority of the load. This booklet describes the slinging of this type of load and the methods shown are to be used, unless stated otherwise by the appointed person. We hope to collect and index as much technical information on the sling and its usage as possible. The topic of slinging entertainment trusses has been hovering over the market for about three decades.
Identify company lifting equipment and accessories and recognise safe working load swls and lifting capabilities and limitations. Permission was given to the hanford site hoisting and rigging committee to use and reproduce portions of standards and information from the following sources. Safe working loads iil5 width swl width swl mm mm 25 1t 125 5t 50 2t 150 6t 75 3t 200 8t 100 4t 250 10t webbingslings webbingslingsiloconvention152 m1. These two slinging methods do not grip the loads completely and should be used only when the loads are easily stabilized or cannot slip out of the sling. The part of the forum for the study of the physics of the sling and the collection of formulae and statistics. Job site considerations the handling, setting and erection of materials and equipment is a hazardous occupation. Rigging the process of lifting and moving heavy loads with ropes, chains, and mechanical devices. Lifting equipment is attached and secuned to the lifting hook using appnopniate techniques. Each operation presents its own peculiar problems and no two jobs are alike. This one turned out a bit longer than i had intended. Cpccst2005a carry out load slinging of off site materials date this document was generated. Types of hitching although it is difficult to list safe practices for all loads, sizes and slingangle combinations, the following rules of thumb work well as safe guidelines.
Demonstrate basic manual handling understanding and techniques. Lifting with chain slings incorrect slinging techniques. The size of the sling is determined by the width of the web. The use of synthetic web slings in radiation areas should be avoided if possible. Correct lifting can move large objects efficiently and reduce manual. Find powerpoint presentations and slides using the power of, find free. The general limitations for this sling method is similar with simple choker hitch, except that with the double wrapped choker hitch the load is gripped. Geared toward the diy builder, it covers everything from basics of primer and spray finishes all the way to advanced patina techniques. It should be noted that a rigging method which is suitable for handling one load might not be suitable for. Slinging, lifting and moving materials and components 5. Lifting equipment is pnepaned and assembled whene appnopniate.
In general, where high volume repetitive lifting occurs, such as in some manufacturing workshops, and there is no requirement to exercise judgement in relation to which sling to use, how to sling the load and the condition of the sling or the load and its centre of gravity, a high risk work licence with a dogging class is not required. View and download powerpoint presentations on rigging slinging ppt. Cpccst2005a carry out load slinging of offsite materials modification history not applicable unit descriptor unit descriptor this unit specifies the outcomes required to sling and. This unit is based upon the national standard for licensing persons performing high risk work.
Other methods, such as, twisting and knotting radically reduce sling work load limits. Correct procedures when using lifting equipment is vital to ensure safety of operators and the public. Sling selection for complex special lifts the slinger signaller will use the equipment specified in the method statement. Harrisons debut tome on the subject of slinging paint. Ensure that the sling angle is always greater than 45 and preferably greater than 60. Licensing information upon being assessed as competent you will be given an assessment report which is valid to use as a licence for up to 60 days. The lifting gears includes a chain sling, rope sling, ring or similar gear, link, hook, plate. Basic slinging and lifting operations course objectives successful completion of this course will enable delegates to. Aims to prevent accidents due to misuse of slings and bad slinging techniques. Slinging a load selecting the slinging method judgement is required. Nontechnical topics will be removed and sidetracked. It should be noted that a rigging method which is suitable for handling one load might not be suitable for handling another load. When the load is wrapped the sling work load limit is not increased, but load control is. This short course is designed to familiarize participants with various types of rigging and slinging equipment and respecting their use.
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