twin-path® slings in action - Hanes Supply, Inc

YOUR SLING AND RIGGING SPECIALISTalloy chain slingsThe life & strength of Alloy chain slings depends on proper inspection,maintenance and use. For additional info, refer toANSI B30.9 & OSHA 1920.184.CAREChain requires careful storage & regular maintenance.• Store chains on an A frame in a clean, dry place.• To avoid corrosion, oil chaines before prolonged storage.• Do not heat Alloy chain; this will alter its thermal treatment• Do not plate or change surface finish of chain. ContactHanes for special requirements.USETo protect both operators and materials, observe these precautionswhen using chain slings:• Before use, inspect chain and attachments following theinstructions under "Inspection" below.• Do not exceed working load limit. Any of the factors listedhere can reduce the load the chain will hold:• Acceleration in rate of load to application –can produce dangerous overloading.• Variation in the angle of the load to the sling – as theangle decreases, the working load of the sling willincrease.• Twisting, knotting or kinking – subjects links to unusualloading, decreasing the working load of the sling.• Use for purposes other than those for which slings areintended – can reduce the working load of the sling.• Free chain of all twists, knots and kinks.• Center load in hook(s); hook latches must not support load.• Avoid sudden jerks when lifting and lowering.• Balance all loads; avoid tipping of loads.• Use pads around sharp corners.• Do not drop load on chains.• Match the size & working load limit of attachments suchas hooks or rings to the size & WLL of the chain.• For overhead lifting, use only alloy chain and attachments(grade 80 or 100).INSPECTIONIt is important both to inspect chain slings regularly and tokeep a record of all chain inspections. Follow this guide forsuch an inspection system.• Before inspecting, clean chains with a non-acid/noncausicsolvent so that marks, nicks, wear and otherdefects are visible.• Inspect each link for these conditions:• Twists or bends.• Nicks or gouges.• Excessive wear at bearing points.• Stretch.CARE, USE AND INSPECTION• Distorted or damaged master links, coupling links orattachments, especially spread in throat opening ofhooks.• Mark plainly with paint each link or attachmentshowing any of the conditions listed here to indicaterejection; remove from service until properly repaired.WEAR ALLOWANCES OF ALLOY CHAINMeasure cross section at link ends to determine wear. Ifchain is worn to less than the minimum allowable thickness,remove from service.Maximum Minimum ThicknessAllowable Wear Allowable atMM Inches (inches) Link Ends (inches)*5.5 7/32 2/64 (.031)– – – 12/64 (.189)7.0 9/32 2/64 (.031) 16/64 (.239)10.0 3/8 3/64 (.047) 21/64 (.342)13.0 1/2 4/64 (.062) 28/64 (.443)16.0 5/8 5/64 (.078) 35/64 (.546)20.0 3/4 6/64 (.094) 42/64 (.687)22.0 7/8 8/64 (.125) 48/64 (.750)26.0 1 9/64 (.140) 53/64 (.887)32.0 1-1/4 10/64 (.156) 70/64 (1.09)USE OF CHAIN UNDER HEAT CONDITIONSWhen the chain itself is heated to temperatures shown here,working load limits should be reduced as indicated.Reduction in PermanentTemperature Working Load Limit 1 Reduction Inof Chain While Heated Working Load Limit 2500°F 25% 5%600°F 30% 15%700°F 40% 20%800°F 50% 25%900°F 60% 30%1000°F 70% 35%1While chain is at temperature shown in first column.2When chain is used at room temperature after havingbeen heated to temperatures shown in first column.CERTIFICATE OF TEST AND IDENTIFICATIONThe identification tag found on the master coupling link ofeach chain sling contains this information:• Grade• Size• Reach• Type• Working load limit (at a specific angle of lift)• Serial numberHEADQUARTERS: 55 James E. Casey Drive • Buffalo, NY 14206 PHONE: 716.826.2636 FAX: 716.826.4412 www.hanessupply.com44