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

Wire RopesYOUR SLING AND RIGGING SPECIALISTINSPECTION – THE KEY TO LONGER, SAFER WIRE ROPE USEAny wire rope in use should be inspected on aregular basis. You have too much at stake inlives and equipment to ignore thorough examinationof the rope at prescribed intervals.The purpose of inspection is to accurately estimatethe service life and strength remaining ina rope so that maximum service can be hadwithin the limits of safety. Results of the inspectionshould be recorded to provide a historyof rope performance on a particular job. Onmost jobs, wire rope must be replaced beforethere is a risk of failure. A rope broken in servicecan destroy machinery and curtail production.It can also kill.JUST LOOKING AT THE ROPE IS NOT ENOUGHWhen an inspector takes a look at a rope, he may see sectionsshowing excessive wear. By flagging the rope, he canquickly determine where the rope is rubbing or contactingparts of the equipment, and then repair, replace or modifythe condition causing wear.Inspections of sheaves is a relatively simple, yet very vitaltask. A sheave groove gauge, usually obtainable from a wirerope manufacturer, is used to check the grooves in a sheave.Hold the gauge perpendicular to the surface of the groove toobserve properly the groove size and contour, as in thisillustration.Because of the great responsibility involved inensuring safe rigging on equipment, the manassigned to inspect should know wire rope andits operation thoroughly. Inspections should bemade regularly and the results recorded.When inspecting the rope, the condition of thedrum, sheaves, guards, cable clamps and otherend fittings should be noted. The condition ofthese parts affects rope wear; any defects detectedshould be repaired.To ensure rope soundness between inspections,all workers should participate. The operationcan be most helpful by watching the ropesunder his control. If any accident involving theropes occurs, the operator should immediatelyshut down his equipment and report the accidentto his supervisor. The equipment shouldbe inspected before resuming operation.The Occupational Safety and Health Act hasmade periodic inspection mandatory for mostwire rope applications.Photo shows new gauge and worn sheave. This new gauge is designedwith one-half the allowable oversize (see table). Using thenew gauge, when you do not see light, the sheave is OK. Whenyou do see light under the new gauge, the sheave should be replaced.noMInal RoPe alloWable RoPe one-Half alloWableDIaMeteR oVeRsIze RoPe oVeRsIze0" - 3/4" +1/32" +1/64"13/16" - 1-1/8" +3/64" +3/128"1-3/16" - 1-1/2" +1/16" +1/32"1-9/16" - 2-1/4" +3/32" +3/64"2-5/16" - & larger +1/8" +1/16"HEADQUARTERS: 55 James E. Casey Drive • Buffalo, NY 14206 PHONE: 716.826.2636 FAX: 716.826.4412 www.hanessupply.com143