PORTABLE WINCH PCA-1260 Round Slings User Guide

PORTABLE WINCH PCA-1260 Round Slings

Product Information

The Round Slings / Webbing Slings are products used for lifting heavy loads. These slings are made of polyester (PES) material that provides selective resistance to chemicals. The slings are available in four different models, namely PCA-1260, PCA-1259, PCA-1258, and PCA-1350.

WARNING

Failure to follow the guidelines of this instruction for use ES may cause serious consequences such as risk of injury.

• Read and understand these instructions before use.

Use of round slings and webbing slings in adverse conditions or hazardous

applications

1. The material from which slings are manufactured has selective resistance to chemicals. Polyester (PES) is resistant to most mineral acids but is damaged by alkalis; Solutions of acids or alkalis which are harmless NO can become sufficiently concentrated by evaporation to cause damage. Contaminated slings should be taken out of service at once, soaked in cold water, dried naturally, and referred to a competent person for examination.
2. Slings are suitable for use and storage in the following temperature ranges for polyester: -40°C to 100°C (-40°F to 212°F). At low temperatures ice formation JP will take place if moisture is present. This may act as a cutting agent and an abrasive causing internal damage to the sling. Further, ice will lessen the flexibility of the sling, in extreme cases rendering it unserviceable for use. These ranges vary in a chemical PT environment, in which case the advice of the manufacturer or supplier should be sought. Limited indirect ambient heating, within these ranges, is acceptable for drying.
3. The man-made fibres from which the slings are produced are susceptible ZH to degradation if exposed to ultra-violet radiation. Slings should not be stored in direct sunlight or sources of ultraviolet radiation.

Inspection of Round Slings and Webbing Slings in Service

1. Before using the sling for the first time, it must be ensured that the sling corresponds exactly to that specified on the order.
2. Before each use, the sling should be inspected for defects and to ensure that the identification and specification are correct. A sling that is unidentified or defective should never be used but should be referred to a competent person for examination.
3. During the period of use, frequent checks should be made for defects or damage, including damage concealed by soiling, which might affect the continued safe use of the sling. These checks should extend to any fittings and lifting accessories used in association with the sling. If any doubt exists as to the fitness for use, or if any of the required markings have been lost or become illegible, the sling should be removed from service for examination by a competent person. Any damage evident in the cover (round sling) indicates potential damage to the load-bearing core. The following are examples of defects or damage likely to affect the fitness of slings for continued safe use:
4. In normal use, some chafing will occur to the surface fibers of the cover (round sling). This is normal and has little effect. Any substantial chafe, particularly localized, shouldbeviewedcritically.Localabrasion,asdistinctfromgeneralwear,canbecaused by sharp edges whilst the sling is under tension, and can lead to the cover (round sling) becoming cut, or/and cause serious loss of strength.
5. Round sling: Cuts. Cross or longitudinal cuts in the cover, or any damage to the stitching, raise serious doubts as to the integrity of the core. Webbing sling: Cross or longitudinal cuts, cuts or chafe damage to selvedges, cuts to stitching or eyes.
6. Chemical attack results in local weakening and softening of the material. This is indicated by flaking of the cover/surface which may be plucked or rubbed off. Any signs of a chemical attack on the cover raise serious doubts as to the integrity of the core (round sling).
7. Heat or friction damage, this is indicated by the fibers of the cover/surface material taking on a glazed appearance and in extreme cases, fusion of the fibres can occur, indicating a weakening of the core (round sling).

Correct selection and use of round slings and webbing slings

1. When selecting and specifying slings, the following must be considered:
   • Slings must have the required working load limit, considering the mode of use and the nature of the load to be lifted. Proper selection of a sling is influenced by the size, shape, and weight of the load, together with the intended method of use, the working environment, and the nature of the load.
   • The slings need to have the correct length for the mode of use. Slings should preferably consist of one length or be extended with the right fittings. Knots and loops in slings – see picture 4.A – are not permitted. The termination of the sling should also be considered whether fittings or soft eyes are required (see picture NO 4.B and 4.C).
   • If more than one sling is used to lift a load, these slings should be identical. The material from which the slings is made should not be affected adversely by the environment or the load.
2. Slings should not be overloaded: the correct mode factor should be used (see table).Working load limits for some modes may be given on the label. In the case of multi-leg slings the maximum angle to the vertical should not be exceeded.
3. Good slinging practices should be followed: the slinging, lifting and lowering operations should be planned before starting the lift.
4. Slings should be correctly positioned and attached to the load in a safe manner. Slings should be placed on the load such that they are able to adopt the flattened form and the loading is uniform across their width. They should never be knotted IT or twisted. Damage to labels should be prevented by keeping them away from the load, the hook and the angle of choke.
5. Slings should be protected from edges, friction, and abrasion, whether from the load or the lifting appliance. Where protection against damage from edges and/or abrasion are supplied as part of the sling, this should be correctly positioned. It may be necessary to supplement this with additional protection. Definition of a sharp edge: Radius r (edge) < thickness d of the lifting gear.
6. The load should be secured by the sling(s) in such a manner that it cannot topple or fall out of the sling(s) during the lift. Sling(s) should be arranged so that the point of lift is directly above the center of gravity and the load is balanced and stable.
   • Movement of the sling over the lifting point is possible if the center of gravity of the load is not below the lifting point. When using basket hitch, the load should be secure since there is no gripping action as with choke hitch and the sling can roll through the lifting point.
   • For slings which are used in pairs, the use of a spreader is recommended so that the sling legs hang as vertically as possible and to ensure that the load is equally divided between the legs. When a sling is used in choke hitch, it should be positioned to allow the natural (120°) angle to form and avoid heat being generated by friction.
   • A sling should never be forced into position, nor an attempt made to tighten the bite. The correct method of securing a load in a double choke hitch is illustrated in figure3.A(round sling)and3.B(webbing slings).A double choke hitch provides greater security and helps to prevent the load sliding through the sling.
7. Care should be taken to ensure the safety of personnel during the lift. Persons in the danger area should be warned that the operation is to take place and, if necessary, evacuated from the immediate area. Hands and other parts of the body should be kept away from the sling to prevent injury as the slack is taken up. The work with lifting devices and equipment must be planned, organized and executed in order to prevent hazardous situations. In accordance with national statutory regulations lifting devices and equipment must only be used by someone well familiar with the work and having theoretical and practical knowledge of safe use. Apart from the instruction manual, refer to existing national regulations on each workplace.
8. A trial lift should be made. The slack should be taken up until the sling is taut. The load should be raised slightly, and a check made that it is secure and assumes the position intended. This is especially important with basket or other loose hitches where friction retains the load. If the load tends to tilt, it should be lowered, and attachments repositioned. The trial lift should NL be repeated until the stability of the load is ensured.
9. Care should be taken when making the lift to ensure that the load is controlled, e.g. to prevent accidental rotation or collision with other objects. Snatch or shock loading should be avoided as this will increase the forces acting on the sling. A load in the sling or the sling itself should not be dragged SV over the ground or rough surfaces.
10. The load should be lowered in an equally controlled manner as when JP lifted. Trapping the sling when lowering the load should be avoided. The load should not rest on the sling, if this could cause damage and pulling the sling from beneath the load when the load is resting on it should not PT be attempted.
11. On completion of the lifting operation the sling should be returned to ZH proper storage. When not in use, slings should be stored in clean, dry and well-ventilated conditions, at ambient temperature and on a rack, away from any heat sources, contact with chemicals, fumes, corrodible surfaces, direct sunlight or other sources of ultraviolet radiation.
12. Prior to placing in storage, slings should be inspected for any damage which may have occurred during use. Slings should never be returned damaged to storage.
13. Where lifting slings have come into contact with acids and/or alkalis, dilution with water or neutralization with suitable media is recommended prior to storage. Depending on the material of the lifting sling and on the chemicals referred to in 1.1, it may be necessary in some cases to request from the supplier additional recommendations on the cleaning procedure to be followed after the sling has been used in the presence of chemicals.
14. Slings which have become wet in use, or as the result of cleaning, should be hung up and allowed to dry naturally, not near a heat source.

Examination and Repair

Examination periods should be determined by a competent person, considering the application, environment, frequency of use and similar matters, but in any event, slings should be visually examined at least annually by a competent person to establish their fitness for continued use. Records of such examinations should be maintained. Damaged slings should be withdrawn from service. Never attempt to carry out repairs to the slings yourself.

Portable Winch Co. 1170, Thomas-Tremblay Street, Sherbrooke, Quebec, J1G 5G5 CANADA
Telephone: +1 819 563-2193
Toll Free (CAN & US) : 1-888-388-7855
Email: [email protected]
Website: www.portablewinch.info

References

• Portable Winch Co.

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