product safety bulletin for chain slings - lgh

THIS BULLETIN CONTAINS IMPORTANT SAFETY WARNINGS AND DANGERS.

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E!Product Safety Bulletin for chain SlingS

This Safety Bulletin has been developed to provide the user of this Chain Product with important safe-ty information related to the proper and safe use of the device. It should be completely read and understood by any person using or involved in using, selecting or maintaining of this or any Pewag chain sling or chain related product. Further this document should be retained as a part of the permanent safety and engineering records for this chain device.

The operation, care and mainte-nance of chain slings are important factors in the long-term, safe usage of the devices. Operation, care and maintenance of a chain sling or sling component (including hooks and connecting links of all types) is gov-erned by the United States Department of Labor, Occupational Safety & Health Administration (OSHA) regulations. In particular, Section 1910.184 governs the operation and usage of alloy steel chain slings and sling components. A chain sling or chain product must always be operated in strict accordance with federal OSHA regulations. Any user or operator of a chain sling device should be completely familiar with these OSHA requirements for proper training and usage of steel chain sling devices. This information is readily available at the OSHA Website which can be found at www.osha.gov.

Remember, lifting or apply-ing loads in any direction is

highly dangerous work. Failure of any single component or link in the chain can result in catastrophic failure and dropping of a heavy load resulting in massive damage to equipment and facilities, as well as severe crushing injury and death to workers and personnel. Always use an extremely high level of care when using any chain sling or chain sling product. Do not use or specify a chain product unless you are fully quali-fied, by both formal training and industry experience, to do such.

The working angles of a chain sling are critical factors in the chains ability to carry load and are not always easily understood. Seek the ad-vice of a qualified engineer or lifting technical specialist for any slinging application that does not meet the most very basic and simple lift appli-cations and sling configurations. As well as properly sizing and considering the strength aspects of the chain, do not forget to check the strength of attachment points, lugs and lift eyes.

Always be safe in any lifting efforts. Follow all safety warnings in this booklet.

Call the Pewag Sling Safety Hotline with any safety or loading related questions:

1-800-526-3924

Also visit the Pewag Chain Safety Website at:

www.pewagchain.com

INTRODUCTION AND PURPOSE

Safety Manual.indd 1 8/16/05 4:00:53 PM


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PRODUCT LABEL/TAG SAFETY WARNINGS

M Each chain sling provided by Pewag includes a permanent Identification Tag. The Identification Tag includes the name of the manufacturer, the grade of chain, the nominal chain size, the number of chain legs, the length (reach) of the sling, the rated loads for the hitches used and the angle upon which the rating is based.

M Always look for proper and clear identifi-cation tagging including clear labeling of

the Working Load Limit. Do not use a sling without proper iden-tification or with a missing or un-readable tag.

M The owner and user of the chain sling is responsible for maintaining and repair-ing the sling identification tag during the life of the sling. Any tag that is missing or illegible shall be replaced with a proper and easily readable identifica-tion tag containing the required sling information, in accordance with OSHA regulations and ASME specifications. Order new identification tags from Pewag.

IDENTIFICATION TAGS:

Pewag



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M In accordance with federal OSHA Regulations, never use a chain sling without proper training. Per OSHA 1926.20 (a)(4), “ The employer shall permit only those employees qualified by training or experience to operate equipment or machinery”

M Operate a chain sling in strict accordance with OSHA 1910.184 and in strict accordance with ASME B.30.9

M Slings having suitable characteristics for

the type of load, hitch and environment shall be selected in accordance with ASME B30.9, Sections 9-1.5 & 9-1.8.

M No portion of the human body shall be placed between the sling and the load. No portion of the human body shall be placed between the sling and the crane or hoisting hook.

M In no case, shall personnel stand under or pass under a suspended load

M Personnel shall not stand in line with or next to the leg or legs of a chain sling that are in tension.

M In no case, shall a person ride on a sling or on a lifted load

M Never use a chain sling as a bridle or support for personnel platforms

M Slings shall be shortened or adjusted only by methods approved by the sling manufacturer or qualified person

M Slings shall not be shortened or lengthened by knotting or twist-ing. Twisting and kinking of any type are to be avoided.

M The sling shall be hitched in a manner providing control of the load

M Sharp edges in contact with the sling should be padded with material of sufficient strength to protect the sling

M Loads shall not be rested on slings

M Slings shall not be pulled from un-der a load when the load is resting on the sling

M During lifting, personnel shall be alert for possible snagging of the sling

M In a basket hitch, the load should be bal-anced to prevent slippage

M Slings shall not be dragged on the floor or over abrasive surfaces

M Slings shall not be constricted, bunched or pinched by the load, hook or any fitting

M When using a basket hitch, the legs of the sling should contain or support the load from the sides, above the center of gravity, so that the load remains under control.

M In a choker hitch, the choke point shall only be on the sling body, never on a fitting.

M The load applied to a hook shall be centered in the “bowl” of the hook to prevent excessive bending stress-es, unless the hook is designed for such loading

M When not in use, store slings properly to avoid damage

USAGE AND TRAINING SAFETY WARNINGS

IMPROPER USE OF A CHAIN SLING CAN RESULT IN SERIOUS INJURY OR DEATH. USE OF THIS PRODUCT WITHOUT COMPLETE AND PROPER TRAINING CAN RESULT IN SERIOUS INJURY OR DEATH. ONLY PERSONS QUALIFIED THROUGH PROPER TRAINING AND EXPERIENCE MAY USE A CHAIN SLING. IN ORDER TO AvOID SERIOUS INJURY OR DEATH, DO NOT USE ANY CHAIN SLING UNLESS YOU HAvE HAD COMPLETE AND THOROUGH TRAINING ON THE PROPER, CORRECT AND SAFE USE OF CHAIN SLINGS!

In order to avoid this hazard:



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M Always accurately determine the load, force or weight that is to be lifted or carried by any chain sling or chain component. Always verify the load by independent means. Select the prop-er chain size based on Working Load Limits.

M Do not attempt to use a chain sling or chain component without com-plete and accurate knowledge of the force or weight carried by each part of the chain sling, even though the sling as a whole may be within it’s working load limit. Common rig-gings and center of gravity locations can result in non-uniform and unbal-anced loading conditions. Consult with an engineer to determine wheth-er each component of the chain has adequate capacity for the application.

M Include all applicable Capacity Re-

duction Factors when determining the Working Load Limit of the sling. The Working Load Limits, as listed in nominal load capacity charts, do not include capacity reduction factors. Capacity reduction factors can sub-stantially reduce the ability of a chain to safely carry load and must not under any circumstance be ignored or underestimated. Consult with a qualified engineer or Pewag represen-tative to determine the proper capac-ity reduction factors if you are at all unsure.

M Do not use slinging angles of

less the 30 degrees, as mea-sured from the horizon-tal plane. This is not simply

the in-plane vertical angle but includes the compound horizontal angles formed by slings using 3 or more legs.

M Capacity calculations containing the approval of an engineer should be performed for each and every different and specific use of this product that does not match exactly with the configu-rations and assemblies shown within the Working Load Limit Tables.

M Chemically active environments can

greatly reduce the strength and Working Load Limit of an alloy steel chain sling. Consult with Pewag or a qualified en-gineer before using any chain sling in a chemically active environment.

M Extreme temperatures can greatly reduce the strength and Working Load Limit of an alloy steel chain sling. If an alloy steel chain sling is used in extreme temperatures, the Working Load Limit must be reduced by application of the proper WLL reduction factors. Refer to the temperature rating and reduction charts within the Pewag catalog or website. Do not attempt to determine the reduction factors or Working Load Limit of a chain sling unless you are fully qualified by both experience and formal training to do so.

M Shock or impact loading can sub- stantially increase the force seen by the chain sling to a level well beyond the Working Load Limits. Shock or im-pact loads are never to be applied to a chain sling.

WORKING LOAD LIMIT SAFETY WARNINGS

THE WORKING LOAD LIMIT (WLL) IS THE MAXIMUM LOAD, FORCE OR WEIGHT THAT MAY SAFELY BE APPLIED TO A CHAIN SLING OR CHAIN SLING COMPONENT. EXCEEDING THE WLL OF A CHAIN SLING CAN CAUSE CHAIN FAILURE. FAILURE OF A CHAIN SLING CAN RESULT IN SERIOUS INJURY OR DEATH. IN ORDER TO AvOID SERIOUS INJURY OR DEATH, NEvER EXCEED THE WLL FOR ANY CHAIN SLING OR FOR ANY COMPONENT WITHIN A CHAIN SLING.




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M In accordance with federal OSHA regulations and industry standard ASME B.30.9, perform and record both frequent and periodic inspections of all chain slings.

M Prior to use, all new, altered,

modified or repaired chain slings shall be inspected by a qualified person to verify compliance with the provisions of ASME B.30.9 and to insure that the sling is appropriate and ready for in-service usage.

M Each day or each shift that the chain sling is used, a visual inspection for damage shall be performed by the user, or other qualified person. The sling shall immediately be removed from service if any of the conditions for Removal Criteria listed below are found.

M Periodic inspections shall be performed on all chain slings. The frequency of the inspections shall be based on the service duty of the sling. In no case shall the Periodic Inspection intervals exceed one year. Periodic inspection intervals shall be performed monthly to quarter-ly for severe service duty applications.

The sling shall immediately be removed from service if any of the conditions for Removal Criteria listed below are found.

M Properly perform detailed measure-ments, using precision instruments, of each and every chain link and sling component. Compare these values to the allowable minimum sizes and maximum deformations listed in this bulletin. Any chain sling component having wear equal to, nearly equal to, or greater than the allowable wear listed in this Bulletin should be immediately removed from service.

M Written records, containing the most recent periodic inspection, shall be maintained by the owner and user of the chain sling. Inspection records should contain detailed reporting on the condition of the chain sling. Inspection records should contain the name of the qualified inspector, the date inspected, the inspection procedures performed as well as the findings and conclusions of the inspections. Inspection records should be signed and dated by the inspector.

INSPECTION AND MAINTENANCE PART A

USE OF A CHAIN SLING CONTAINING EXCESSIvE WEAR OF ANY SINGLE COMPONENT CAN RESULT IN SERIOUS INJURY OR DEATH! TO AvOID THIS HAzARD ALWAYS PROPERLY INSPECT ALL CHAIN SLINGS. STRICTLY ADHERE TO ALL OSHA REGULATIONS AND THIS BULLETIN FOR THE FREQUENT AND PERIODIC INSPECTION OF CHAIN SLINGS. ANY CHAIN SLING OR CHAIN SLING COMPONENT SHOWING EXCESSIvE WEAR BEYOND THAT PRESCRIBED BY OSHA, ASME AND THIS BULLETIN MUST BE IMMEDIATELY REMOvED FROM SERvICE.


M Missing or illegible sling identification tag

M Cracks or breaks anywhere in the chain links, hooks, coupling links or any other chain sling component

M Excessive wear of chain links beyond that listed in the Allowable Wear Tables within this bulletin and as listed in ASME B30.9

M Nicks or gouges in the chain links, hooks or other sling components

M Stretched, twisted, bent or deformed chain links or sling components

M Heat damage or burns

M Pitting or corrosion

M Chain is binding or otherwise unable to articulate and hinge freely between links

M Weld splatter

CHAIN SLING REMOvAL CRITERIA Immediately remove from service a chain sling containing any of the following deficiencies:



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M CONTINUOUS MAINTENANCE: Chain and fittings must be with-

drawn from service if any damage is noticed.

M MAINTENANCE: Keep a record on all chain slings.

Depending on the use of the slings, they should be inspected regularly in accordance with national regulations (ASME B.30.9).

M INSPECTION PROCEDURE: Each link and each attachment shall

be examined individually, taking care to expose inner link surfaces of the chain and attachments.

M vISUAL INSPECTION: Check for wear, nicks, cracks, breaks,

gouges, stretch, bends, weld splatter, discoloration from excessive heat and throat opening of hooks.

M MEASURING: The medium link thickness must not be

reduced by more than 10% of the nomi-nal diameter on any part of the chain. The elongation of the chain should not exceed 5% at any point.

INSPECTION AND MAINTENANCE PART B

Pitch (p) stretched due to elongation (overloading)

Pitch (p) increased due to wear

Hook bent open

To be removed whenever a deformation is noticed

Designation Dimension Max. Tolerance

Chain andmaster rings

dmp

- 10%+ 5%

HS, HSK, LH, F,PS, P, KHS, KLH,

KF, KP,XK, KO

ed2 and h

g

+ 5%- 10%+ 10%

C, CL, CK, CAR ec (same as d2)

+ 5%- 10%

BW eangle

+ 5%≥ 90%

M SLING REPAIRS:Slings shall be repaired only by the sling manufacturer or by a qualified person. Repairs are to be performed in accordance with ASME B30, Sec-

tion 9-1.9.5

Cracked, broken or bent chain links or components shall NOT be repaired. Instead these shall be replaced.

max

. 1,0

5 t

(P)

To be removed whenever dm = d1 + d2 ≤ 0.9 d 2

(P)


product safety bulletin for chain slings - lgh

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