Slinging techniques pdf files

Using a best approximation of an apache slinging technique as described at. Basic slinging and lifting operations course objectives successful completion of this course will enable delegates to. Lifting equipment is attached and secuned to the lifting hook using appnopniate techniques. Sling a loop of material that connects the load to the lifting device. Ensure that the sling angle is always greater than 45 and preferably greater than 60. On a four leg sling only two of the legs may be carrying the majority of the load. It includes basic instructions on knots, hitches, splices, lashing, and tackle systems. Never use a sling in a basket format, as this can drastically overload the. Each operation presents its own peculiar problems and no two jobs are alike. Pdf introduction to sling load tension calculations. If it is necessary to use a nylon sling in a radiation. To be issued with your licence, you will need to present this paperwork to the territory business centre.

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. Slinging, lifting and moving materials and components. Geared toward the diy builder, it covers everything from basics of primer and spray finishes all the way to advanced patina techniques. Position the object close to the knee on the ground. When the load is wrapped the sling work load limit is not increased, but load control is. Licence to perform this course is classified as high risk. 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. 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.

Legislative requirements and code of practice of lifting operations 2 4. 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. 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. The content of the pnnl hoisting and rigging manual was derived from the. It should be noted that a rigging method which is suitable for handling one load might not be suitable for handling another load. 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. Large precast units, plant such as air handling units, generators etc. We hope to collect and index as much technical information on the sling and its usage as possible. 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. The part of the forum for the study of the physics of the sling and the collection of formulae and statistics. 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.

Wrapping the load is a legitimate method of minimizing excessive sling length. Cpccst2005a carry out load slinging of offsite materials. Harrisons debut tome on the subject of slinging paint. Slings can be made of chain, wire, metal mesh, natural, and synthetic materials. 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. Rigging equipment english discusses safety precautions to take in equipment rigging. 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. Lifting hook is positioned oven the load centne of gnavity. Job site considerations the handling, setting and erection of materials and equipment is a hazardous occupation. Note the capacity for the vertical, choker and basket hitch are different. 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. Correct procedures when using lifting equipment is vital to ensure safety of operators and the public.

Lifting with chain slings incorrect slinging techniques. 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. This ebook details all the processes for taking your kit from raw plastic to finished weathered replica. Slinging, lifting and moving materials and components 5. Demonstrate basic manual handling understanding and techniques. Lifting operations our expectations balfour beatty. Actual finished length of a sling, inclusive of fittings, from bearing. Mainly because the open character of the truss structure allows for so much more routes for a sling compared to the classic solid beams. Find powerpoint presentations and slides using the power of, find free. Other methods, such as, twisting and knotting radically reduce sling work load limits. Each sling has a tag sewn to it with the type, size and rated capacities 8. 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. Nontechnical topics will be removed and sidetracked.

There are many rigging methods for different kinds of loads being handled. The size of the sling is determined by the width of the web. This unit covers the scope of work to demonstrate competency in the application of slinging techniques, selection and inspection of lifting gear andor the directing of the crane operator in the movement of the load. 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. Identify company lifting equipment and accessories and recognise safe working load swls and lifting capabilities and limitations.

Lecture notes, audio visual presentation and specific items of. Aims to prevent accidents due to misuse of slings and bad slinging techniques. Make sure the rated capacity of each sling is adequate for the load. 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. Slinging a load selecting the slinging method judgement is required. For support as you lower yourself down, put one hand on a stool or on your thigh for support. Lifting equipment is pnepaned and assembled whene appnopniate. Incident at a shipyard in malasia dramatic photos of an accident as it is occurring. 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. 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. Carry out preuse checks and recognise the actions to be taken with defective. The use of synthetic web slings in radiation areas should be avoided if possible. The angle between sling legs on a hook must never exceed 90.

It is intended for use in training and as a reference manual for field operations. It cov ers the types of rigging and the application of fiber rope, wire rope, and chains used in various combinations to raise or move heavy loads. This comprehensive guide is over 90 pages and features dozens of detailed photos for every process. The topic of slinging entertainment trusses has been hovering over the market for about three decades. 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. Rigging the process of lifting and moving heavy loads with ropes, chains, and mechanical devices. 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. It should be noted that a rigging method which is suitable for handling one load might not be suitable for. Cpccst2005a carry out load slinging of off site materials date this document was generated. Course outcome on successful completion participants are issued. Permission was given to the hanford site hoisting and rigging committee to use and reproduce portions of standards and information from the following sources. This unit is based upon the national standard for licensing persons performing high risk work.

The content of the pnnl hoisting and rigging manual was derived from the hanford site hoisting and rigging manual doerl9236. Keep your back straight, push your buttocks out and slowly lower yourself down onto one knee. Sling selection for complex special lifts the slinger signaller will use the equipment specified in the method statement. Where documents and drawings are referenced, the user must always check that. This one turned out a bit longer than i had intended. This manual identifies the basic hazards in rigging and hoisting, explains the.