M 004 Basic Rigging Safety Lecture - Lle.rochester.edu
M 004 Basic Rigging Safety LectureMilton J. Shoup IIIMechanical Safety OfficerUniversity of RochesterLaboratory for Laser EnergeticsRev 10/20/2015Ba s ic Rigging S a fe ty Le cture -2015-10-20.pptm1 of 101
SummarySafety is everyone’s business and compliance withsafety procedures is MANDATORY If an activity or practice seems unsafe, “Stop Work” and take thetime to address concerns Only designated or qualified personnel may attach loads to anoverhead hoist No LLE personnel are qualified or permitted to repair riggingequipment Only approved/rated rigging gear shall be attached to a load hook Load ratings shall never be exceeded It is the riggers responsibility to ensure all components used in arigging operation meet the required load ratings—Rev 10/20/2015If a rigger is unable to determine a proper rigging configurationcontact ME or an Advanced Rigger for supportBa s ic Rigging S a fe ty Le cture -2015-10-20.pptm2 of 101
There are two specific roles in moving materialsoverhead, hoist operators and riggers The definitions for hoist operators and riggers are asfollows;Rev 10/20/2015—hoist operator: an employee who generally uses anoverhead hoist as a tool to assist in theperformance of their regular job—rigger: At LLE a rigger is responsible for safelyattaching payloads to the load hook of a hoist.Basic Rigging Safety Lecture-2015-10-20.pptm3 of 101
There are two specific roles in moving materialoverhead, hoist operators and riggers There are 2 classes of training for Hoist operators—Hoist operator – for overhead vertical lifting with unpoweredhorizontal motion—Overhead Crane operator – for overhead vertical lifting withpowered horizontal motion There are 3 classes of training for riggers—No training is required for rigging payloads 120 lbs—Basic rigger – for personnel attaching any loads from 120-500 lbs toany hoist for a pure vertical lift—Advanced rigger – for personnel attaching any load 500 lbs to anyhoist or any load using multiple load hooksOverhead rigging of material or equipment is to be performed only bydesignated personnelRev 10/20/2015Ba s ic Rigging S a fe ty Le cture -2015-10-20.pptm4 of 101
Basic rigging scope of qualification Basic rigging training qualifies the individuals to use the followingequipment;—Slings: Synthetic web slings, round and flat—Hardware: Hoist rings, eye bolts, shackles, hooks Basic rigging training qualifies the individuals to perform the followingactivities for payloads up to 500 lbs;Rev 10/20/2015—Conduct rigging operations—Rig payloads for overhead lifts using the equipment listed above—Attach payloads to any load hookBa s ic Rigging S a fe ty Le cture -2015-10-20.pptm5 of 101
OSHA Department of Labor (DOL) establishes the rulesfor overhead hoists The rules for rigging equipment are established in 29 CFR 1910.184Slings and 29 CFR 1926.251 Rigging equipment for material handling The DOL incorporates additional rules by reference by citing additionalstandards within the regulations ASME B30 pertains to lifting and material-handling related equipment—Rev 10/20/2015There are 28 subparts to ASME B30Ba s ic Rigging S a fe ty Le cture -2015-10-20.pptm6 of 101
Purpose of the ASME B30 standard The B30 Standard is intended to(a) prevent or minimize injury to workers, and otherwise provide for theprotection of life, limb, and property by prescribing safetyrequirements(b) provide direction to manufacturers, owners, employers, users, andothers concerned with, or responsible for, its application(c) guide governments and other regulatory bodies in the development,promulgation, and enforcement of appropriate safety directivesRev 10/20/2015Ba s ic Rigging S a fe ty Le cture -2015-10-20.pptm7 of 101
Numerous portions of the ASME B30 standard apply torigging equipment Each of the B30 sections listed below contain requirements on theselection, use, maintenance, and inspection—B30.1 Jacks—B30.9 Slings—B30.10 Hooks—B30.20 Below-the-Hook Lifting Devices—B30.26 Rigging Hardware This lecture distills the ASME requirements into the policies andpractices used at LLERev 10/20/2015Ba s ic Rigging S a fe ty Le cture -2015-10-20.pptm8 of 101
The basic steps for moving a payload1) Prep worka.Understand the payloadb.Select the rigging gearc.Inspect all rigging geard.Assign responsibilities2) Attach the rigging gear to the payload3) Attach payload to a load hook4) Move the payload5) Secure the payload6) Detach the payload from a hook7) Remove the rigging gearRev 10/20/2015Ba s ic Rigging S a fe ty Le cture -2015-10-20.pptm9 of 101
A vital part of your Prep Work is knowing the payloadand path of travel Weight—Can often be found in “notes” section of a part drawing—Calculations (volume x density)—Talk to Mechanical Engineering Center of Gravity—Drawings will sometimes denote CG—Test lift to determine CG Path of travelRev 10/20/2015—Know that destination is clear and ready to accept the payload—Insure the path is clear of any obstructions and personnel that willhinder movementBa s ic Rigging S a fe ty Le cture -2015-10-20.pptm10 of 101
Select rated rigging equipment based upon the payloadand how it is used Know the load capacity of the overhead hoists and support structures—This includes hoist(s), bridges, jibs, or gantries Know the load capacity of rigging hardware used in the rigging operation—This includes the shackles, hoist rings, straps, etc. Know how use of the equipment affects the load rating Use only load rated products NEVER exceed the rated load capacity of any piece of rigging equipmentRev 10/20/2015Ba s ic Rigging S a fe ty Le cture -2015-10-20.pptm11 of 101
Rigging equipment must be inspected prior to each useto ensure that it is safe Hardware—Visually inspect all hardware for damage including but not limitedto screws, lifting shackles, hoist rings/lifting eyes, etc.—Look for thread damage, bent or fractured pieces, intentional orunintentional modifications Slings—Visually inspect for damage or fraying—Insure load rating tag is on the sling and legible—Inspect sewn threadsAny rigging equipment that is found to be unsafe must removed fromservice immediatelyRev 10/20/2015Ba s ic Rigging S a fe ty Le cture -2015-10-20.pptm12 of 101
During Prep activities, personnel assignments andresponsibilities are reviewed Hard hat and safety glasses must be worn during all rigging operations Make sure all personnel involved understand the purpose and the natureof the operation Designate specific tasks to individuals as needed Use a ground spotter when lifting loads to upper level areas Post a sentry or barricade to prevent personnel from walking under thepayload Insure communication between all parties involved is clear and concise—Example– Crane operator “Moving the load North”– Rigger “ Moving the load North aye” NEVER leave a suspended load unattendedRev 10/20/2015Ba s ic Rigging S a fe ty Le cture -2015-10-20.pptm13 of 101
Rated versus non-rated rigging hardware The terms “rated” and “non-rated” have specific meaning in the riggingfield “Load Rated” products are engineered with special considerationsimportant to lifting loads with cranes and hoists “Non-rated” products often look the same, but are not engineered toprovide the same design factors and safety features as the load ratedversions Never use non-rated products for riggingRev 10/20/2015Ba s ic Rigging S a fe ty Le cture -2015-10-20.pptm14 of 101
Definitions angle of loading: the acute angle between horizontal and the leg of therigging, often referred to as the horizontal angle. designated person: a person selected or assigned by the employer or theemployer's representative as being competent to perform specific duties hoist operator: an employee who generally uses an overhead hoist as atool to assist in the performance of their regular job line pull: the tension load in a rope entering a rigging block. The term“pull” is commonly used to describe line pull. qualified person: a person who, by possession of a recognized degree inan applicable field, or certificate of professional standing, or who, byextensive knowledge, training, and experience, has successfullydemonstrated the ability to solve or resolve problems relating to thesubject matter and work.Rev 10/20/2015Basic Rigging Safety Lecture-2015-10-20.pptm15 of 101
Definitions rated load: the maximum allowable working load established by therigging hardware manufacturer. The terms "rated capacity" and "workingload limit (WLL)" are commonly used to describe rated load. rigger: At LLE a rigger is responsible for safely attaching payloads to theload hook of a hoist.Rev 10/20/2015Basic Rigging Safety Lecture-2015-10-20.pptm16 of 101
Synthetic slingsRev 10/20/2015Ba s ic Rigging S a fe ty Le cture -2015-10-20.pptm17 of 101
Synthetic slings are used with three basic hitch styles Sling ratings are specified foreach of three basic styles;vertical, choker, and basket For the basket style hitch, the loadrating is specified for a 90 slingangleLoadRev 10/20/2015Ba s ic Rigging S a fe ty Le cture -2015-10-20.pptm18 of 101
Synthetic slings come in two basic Styles Endless Loop ( EN) Eye and Eye (EE)Rev 10/20/2015—Type 3 Flat eye is the most popular for all three hitch styles—Type 4 Twisted eye is more commonly used for choker hitchBa s ic Rigging S a fe ty Le cture -2015-10-20.pptm19 of 101
Only synthetic slings are to be used at LLE Slings are made of either Polyester or Nylon Various widths are available – at LLE most are from 1” to 3” wide Information sewn into the sling label includes;Rev 10/20/2015—Manufacturers' name—Serial number—Load ratings (per hitch style)—Material—Length—Sling Type—MaterialBa s ic Rigging S a fe ty Le cture -2015-10-20.pptm20 of 101
Synthetic web slings shall be immediately removedfrom service if any of the following conditions exist Burn Damage from either heat or chemical sourcesRev 10/20/2015—Heat damage may not be obvious—Any synthetic sling exposed to temperatures above 150 F must beremoved from serviceBa s ic Rigging S a fe ty Le cture -2015-10-20.pptm21 of 101
Synthetic web slings shall be immediately removedfrom service if any of the following conditions exist Snags, punctures, tears or cutsThe red thread (tattletale) exposed in this example mean the sling must beremoved from service. Simply remember “Red is dead” Broken or worn stitchesRev 10/20/2015Ba s ic Rigging S a fe ty Le cture -2015-10-20.pptm22 of 101
Synthetic web slings shall be immediately removedfrom service if any of the following conditions existRev 10/20/2015Ba s ic Rigging S a fe ty Le cture -2015-10-20.pptm23 of 101
In a bridle hitch, two, three, or four single hitches areused together to hoist objects that have lifting lugs orother attachments Bridle hitches can be assembled from individual components (slings,shackles, hooks, etc.) Bridle synthetic slings are permanently assembled units consisting of anumber web slings grouped together on a master link Bridle slings typically have 1-4 legs Sling ends can be either eyes or various types of hooksRev 10/20/2015Ba s ic Rigging S a fe ty Le cture -2015-10-20.pptm24 of 101
Sling rigging practices using a choker hitch Set the sling angle to 120 for afull load rating Improperly setting the choke canreduce the load rating by as muchas 50%Angle of choke, degOver 12090-12060-8930-590-29Rev 10/20/2015SlingAngleRated Capacity, %10087746249Ba s ic Rigging S a fe ty Le cture -2015-10-20.pptm25 of 101
Sling rigging practices using a basket hitch Remember that basket hitch ratings are for slings at 90 The legs of a basket hitch are typically collected on a single hook A sling angle less than 90 increases the tension (load) in the sling1000 lbsRev 10/20/20151000 lbs1000 lbsBa s ic Rigging S a fe ty Le cture -2015-10-20.pptm1000 lbs1000 lbs26 of 101
Synthetic Sling Do’s and Don’tsDo’sDon’ts Do not use if any part of sling isdamaged Visually inspect slings for anydamage and remove from serviceif necessaryInsure the safety tag is attached,legible, and has all pertinentinformation Verify load ratings per hitch style Use “softeners” on sharp cornersas necessary Do not use if the safetyinformation is missing or notlegible Do not tie slings together Do not use a sling that has beenshock loaded (remove it fromservice) Never exceed the load ratingRev 10/20/2015Ba s ic Rigging S a fe ty Le cture -2015-10-20.pptm27 of 101
Is this sling safe to use? No the red tattletale isshowingRev 10/20/2015Ba s ic Rigging S a fe ty Le cture -2015-10-20.pptm28 of 101
The three primary pieces of rigging hardware used atLLE Swivel Hoist rings Eyebolts ShacklesRev 10/20/2015Ba s ic Rigging S a fe ty Le cture -2015-10-20.pptm29 of 101
Hoist ringsRev 10/20/2015Ba s ic Rigging S a fe ty Le cture -2015-10-20.pptm30 of 101
Hoist rings have free movement about 2 axes orDegrees of Freedom (DOF) This motion allows the hoist ring to always be aligned with the slingBailSwivelNever use a hoist ring if the swivel or bail bind, this is an indication ofdamageRev 10/20/2015Ba s ic Rigging S a fe ty Le cture -2015-10-20.pptm31 of 101
Swivel hoist rings are able to accommodate various useangles Load ratings based on:—Size– Ring size and thread size—Material– Commonly alloy steel or stainless steel—Thread length– Longer length usually designed for soft metals (aluminum)– Shorter lengths can be used in ferrous metals (steel) Each hoist ring is load tested and comes with a factory certificate Many different types and sizes are availableRev 10/20/2015Basic Rigging Safety Lecture-2015-10-20.pptm32 of 101
The longer “Effective Thread Projection” that isapproximately twice the thread diameter must be usedfor a hoist ring threaded into aluminumDimensionsWorking TorqueFrame HR-125LoadinSize Stock No.LimitFt-LbsBolt SizeNo.(lbs.)A210169092500281/2 - 13 x 2.00210169122500281/2 - 13 x 2.50210169204000605/8 - 11 x 2.00210169244000605/8 - 11 x 2.752101693150001003/4 - 10 x 2.252101693550001003/4 - 10 x 2.753101694270001003/4 - 10 x 2.753101694670001003/4 - 10 x 3.50Rev 6.57D1.961.961.961.961.961.962.962.96Basic Rigging Safety Lecture-2015-10-20.pptmRadius DiameterEFGH0.870.693.35 2.290.870.693.35 2.290.870.693.35 2.160.870.693.35 2.160.870.693.35 2.040.870.693.35 2.041.360.944.87 2.981.360.944.87 8133 of 101
Hoist ring load ratings and installation torque valuesare stamped or etched on an installation placardlocated on top of the hoist ring Use an allen wrench for initialinstallation of the hoist ring A torque wrench must always beused for proper installation of thehoist ring Never exceed the load ratingRev 10/20/2015Basic Rigging Safety Lecture-2015-10-20.pptm34 of 101
Hoist ring Do’s Visually inspect hoist rings for any damage or corrosion on threads andbody Insure the installation placard is attached, if not remove the hoist ringfrom service Use an allen wrench for initial installation and then a torque wrench forfinal tightening Make sure the thread engagement is appropriate for the base metal thebolt is being threaded into—Approximately 1 times the diameter when threading into steel—Approximately 2 times the diameter when threading into aluminum Verify swivel and bail functionality after installationRev 10/20/2015Ba s ic Rigging S a fe ty Le cture -2015-10-20.pptm35 of 101
Hoist ring Don’ts Do not use if any part of hoist ring is damaged Do not use if placard information if missing or not legible Do not use a hoist ring if it is not tightened to the recommended torque Do not use if the hoist ring does not swivel Do not use washers in between the hoist ring and mounting surface Do not repair, replace, or modify any piece of a hoist ring Do not use if a gap exists between the part being lifted and the hoist ring Do not use a hook larger than the diameter of the hoist ring bail opening Never exceed the load rating of the hoist ringRev 10/20/2015Ba s ic Rigging S a fe ty Le cture -2015-10-20.pptm36 of 101
What is the WLL of this hoist ring? Zero, the threadedrod, nut, and washers are clearly not an original boltRev 10/20/2015Ba s ic Rigging S a fe ty Le cture -2015-10-20.pptm37 of 101
Eye boltsRev 10/20/2015Ba s ic Rigging S a fe ty Le cture -2015-10-20.pptm38 of 101
Machinery eye bolts are not as versatile as hoist rings Fixed position based upon thread engagement makes them alignmentsensitive when pulling at an angle Can accommodate thru hole applications Load ratings are based upon a number of factors—Size– Ring size and thread size—Material– Commonly forged from carbon steel or stainless steel (carbonsteel and stainless steel have different load ratings for thesame size)—Use angle– Can only be used up to 45 Two different styles and numerous sizes availableRev 10/20/2015Ba s ic Rigging S a fe ty Le cture -2015-10-20.pptm39 of 101
There are two styles of eye bolts Plain pattern— Shoulder patternstraight vertical pulls only—angular pulls up to 45 fromverticalShoulderRev 10/20/2015Ba s ic Rigging S a fe ty Le cture -2015-10-20.pptm40 of 101
Machinery eye bolts must be used with great care Working load limits for eye boltsare based on a straight vertical pull“in a gradually increasing manner”Working Load LimitDiameter and Straight PullThread(X)45 Pull (Y)Shoulder 1000 Loads should always be applied toeye bolts in the plane of the eye,not at an angle to this plane3/4"-10600015007/8"-9700017501"-890002250 Angular pulls must never be morethan a 45 04900 Angular pulls will significantlylower working load limits (seeShoulder Pattern) and should beavoided whenever possible If an angular pull is required, aproperly seated Shoulder Patterneye bolt must be usedRev 10/20/2015Ba s ic Rigging S a fe ty Le cture -2015-10-20.pptm41 of 101
Loads must always be applied to eye bolts in the planeof the eye Side pull in the plane of the eye Sling angle must not exceed 45 Side pull out of the plane of theeye. This configuration must notbe usedFlat washers may be used under the shoulder to position the plane of theeyeRev 10/20/2015Ba s ic Rigging S a fe ty Le cture -2015-10-20.pptm42 of 101
Do not reeve slings between attachment points Reeving introduces side pull Although the upper sling angle is60 , the resultant sling angle is30 For 1 lbf at 60 there is also a 1 lbflateral load. The resultant load onthe eye bolt is 1.73 lbf at 30 .1 lbf1.73 lbf1 lbfRev 10/20/2015Ba s ic Rigging S a fe ty Le cture -2015-10-20.pptm43 of 101
Eye bolt identification markings Manufacturer and Size Eyebolts are not required to bemarked with the WLL or requiredinstallation torque. The user mustlook up this information prior touse Do not use any eye bolt forrigging unless there are clearlylegible identification marksRev 10/20/2015Ba s ic Rigging S a fe ty Le cture -2015-10-20.pptm44 of 101
All machinery eye bolts are not created equal, they varybetween manufacturers A comparison of the same sizeshouldered eye bolts from twomanufacturers shows differentWLLWorking Load LimitDiameter andThreadChicagoStraight PullCrosbyStraight Pull1/4"-20500650 Chicago rates the shouldered eyebolt for a side pull up to 45 5/16"-1890012003/8"-1614001550 Although Crosby rates theshouldered eye bolt for a side pullup to 90 (25% of in-line WLL), amaximum of 45 is permitted 00024000 The user must look up WLLinformation prior to useRev 10/20/2015Ba s ic Rigging S a fe ty Le cture -2015-10-20.pptm45 of 101
Shoulder Nut Eye Bolt – Installation for In-Line andAngular LoadingA. The threaded shank must protrudethrough the load sufficiently to allow fullengagement of the nutIn-linePull angle45 B. If the eye bolt protrudes so far throughthe load that the nut cannot be tightenedsecurely against the load, use properlysized washers to take up the excessspace BETWEEN THE NUT AND THE90 LOADC. Place washers or spacers between nutand load so that when the nut istightened securely, the shoulder issecured flush against the load surfaceD. Thickness of spacers must exceed thisdistance between the bottom of the loadand the last thread of the eye boltC,DBARev 10/20/2015Ba s ic Rigging S a fe ty Le cture -2015-10-20.pptm46 of 101
Regular Nut & Shoulder Nut Eye Bolt - Installation forIn-line Loading with a tapped hole More than one eye bolt diameterof threads, only (1) nut is required One eye bolt diameter of threadsor less, use two (2) nuts Tighten hex nut securely againstload Tighten hex nut securely againstloadRev 10/20/2015Basic Rigging Safety Lecture-2015-10-20.pptm47 of 101
Regular Nut & Shoulder Nut Eye Bolt - Installation forIn-line Loading with a tapped hole Minimum engagement depth is 2 xDiameterRev 10/20/2015 One eye bolt diameter of threadsor less is not allowedBasic Rigging Safety Lecture-2015-10-20.pptm48 of 101
Examples of non-load rated eyebolts that should neverbe used for riggingwelded eye boltRev 10/20/2015open eye boltBa s ic Rigging S a fe ty Le cture -2015-10-20.pptmbent eye bolt49 of 101
Machinery eye bolt Do’s Visually inspect eyebolts for any damage or corrosion on threadsand body Always be sure threads on the shank and receiving holes are clean Insure the eyebolt has proper identification markings Always countersink receiving hole or use washers to seat the shoulderproperly Always screw the eye bolt down completely for proper seating Always tighten nuts securely against the load When using blind tapped holes, make sure thread engagement is morethan 1.5 times the diameter of the thread in steel and 2.5 times inaluminumRev 10/20/2015Ba s ic Rigging S a fe ty Le cture -2015-10-20.pptm50 of 101
Machinery eye bolt Don’ts Do not use the eyebolt if it is bent, damaged, or has been modified Do not use if the eyebolt if it does not have proper identificationmarkings Do not use shouldered eyebolts at angles between 45 and 90 degrees tobolt axis Do not repair, replace, or modify an eyebolt Do not use if a gap exists between the part and eyebolt Do not use a hook larger than the diameter of the eyebolt opening Do not use a plain pattern eye bolt for angular pulls Shock loading must be avoided Never machine, grind, or cut an eye bolt Never use eye bolt that shows signs of wear or damage Never use eye bolt if eye or shank is bent or elongated Never exceed the load ratingRev 10/20/2015Ba s ic Rigging S a fe ty Le cture -2015-10-20.pptm51 of 101
Is this eyebolt safe to use? No, because the shoulderhas been damagedRev 10/20/2015Ba s ic Rigging S a fe ty Le cture -2015-10-20.pptm52 of 101
ShacklesRev 10/20/2015Ba s ic Rigging S a fe ty Le cture -2015-10-20.pptm53 of 101
Shackles are used for connecting various pieces ofrigging equipment together Used as a connecting linkbetween items—Strap to hoist ring or eyebolt—Strap to strap—Used as single attach pointfor multiple straps Load rating based on:—Size—Material Many different types and sizesRev 10/20/2015Ba s ic Rigging S a fe ty Le cture -2015-10-20.pptm54 of 101
Examples of shackle usage Strap to diagnosticRev 10/20/2015 With multiple strapsBa s ic Rigging S a fe ty Le cture -2015-10-20.pptm55 of 101
Round pin shackle Round Pin Shackles can be used in tie down, towing,suspension or lifting applications where the load isstrictly applied in-line Round pin shackles should never be used in riggingapplications to gather multiple sling legs, or where sideloading conditions may occurRound pin shackles are not approved for use at LLERev 10/20/2015Ba s ic Rigging S a fe ty Le cture -2015-10-20.pptm56 of 101
Screw pin shackle Screw Pin Shackles are used in Pick and Placeapplications. For permanent or long-term installations, Crosbyrecommends the use of bolt type shackles.Alternatively, the screw pin shall be secured fromrotation or loosening. Screw pin shackles can be used for applicationsinvolving side-loading circumstances Reduced working load limits are required for sideloading applications While in service, do not allow the screw pin to berotated by a live line, such as a choker applicationScrew pin shackles are preferred for use at LLERev 10/20/2015Ba s ic Rigging S a fe ty Le cture -2015-10-20.pptm57 of 101
Bolt-type shackle Bolt-Type Shackles can be used in any applicationwhere round pin or screw pin shackles are used In addition, they are recommended for permanent orlong term installations and where the load may slide onthe shackle pin causing the pin to rotate The bolt-type shackle’s secondary securement system,utilizing a nut and cotter, eliminates the requirement totighten pin before each lift or movement of loadBolt-type shackles must have the cotter pin installedRev 10/20/2015Ba s ic Rigging S a fe ty Le cture -2015-10-20.pptm58 of 101
Shackle identification markingsManufacturer(Crosby)45 markSize(3/4)Working Load Limit( 4 ¾ T)Rev 10/20/2015Ba s ic Rigging S a fe ty Le cture -2015-10-20.pptm59 of 101
Side loading of screw pin and bolt type shackles resultsin a reduction of the working load limitIn-line45 Angle of Side Load fromVertical In-Line of shackleAdjusted WLL0 In-Line100% of Rated WLL45 from In-Line70% of Rated WLL90 from In-Line50% of Rated WLL90 In-line load90 from in-lineAt LLE shackles are only permitted to be loaded in-lineRev 10/20/2015Ba s ic Rigging S a fe ty Le cture -2015-10-20.pptm60 of 101
Shackle load ratings are based upon the use angle withmultiple straps Shackles symmetrically loaded with two leg slings having a maximumincluded angle of 120 and can be utilized to full working load limit of theshackle Never exceed a 120 included angle and only use bolt-type or screw-pinshackles120 Rev 10/20/2015Ba s ic Rigging S a fe ty Le cture -2015-10-20.pptm61 of 101
Shackle rigging practices for Crosby shackles Point loading of shackle bows isacceptableRev 10/20/2015 Point loading of shackle pins isacceptable when the load isreasonably centered on the pinBa s ic Rigging S a fe ty Le cture -2015-10-20.pptm62 of 101
Shackle rigging practices with synthetic slings Folding, bunching, or pinching ofsynthetic slings can occur whenused with shackles Folding, bunching, and pinchingof synthetic slings reduces thesling load rating and must beavoidedRev 10/20/2015Ba s ic Rigging S a fe ty Le cture -2015-10-20.pptm63 of 101
Shackle rigging practices Screw pins shall be fully engaged If designed for a cotter pin, it shallbe used and maintained Applied load should be centeredin the bow to prevent side loading Multiple sling legs must not beapplied to the pin If the shackle is side loaded, therated load shall be reduced Never have the pin against the liveline in a choker. The pin must gothrough the bow of the sling.Rev 10/20/2015Ba s ic Rigging S a fe ty Le cture -2015-10-20.pptm64 of 101
Shackle Do’s Visually inspect shackles for any damage or wear on ring and pin Insure shackles have proper identification markings Finger tighten the pin into ring of shackle Check for proper fit of the pin into ring Check the load ratings and use according to manufacturerrecommendationsRev 10/20/2015Ba s ic Rigging S a fe ty Le cture -2015-10-20.pptm65 of 101
Shackle Don’ts Do not use a shackle if it is bent, damaged, or has been modified Do not use if the shackle does not have proper identification markings Do not use a tool to tighten a shackle pin Do not repair, replace, or modify a shackle Do not use a shackle if the pin has been replaced with a bolt Do not use a hook larger than the diameter of the shackle opening Never exceed the load ratingRev 10/20/2015Ba s ic Rigging S a fe ty Le cture -2015-10-20.pptm66 of 101
What is the WLL of this shackle? Zero, because thescrew pin has been replaced with a boltRev 10/20/2015Ba s ic Rigging S a fe ty Le cture -2015-10-20.pptm67 of 101
What is the WLL of this shackle? Zero, weldingchanges the strength of the shackle materialRev 10/20/2015Ba s ic Rigging S a fe ty Le cture -2015-10-20.pptm68 of 101
Never use counterfeit or unknown hardware Rigging hardware must be identifiable with all information clearly legibleRev 10/20/2015Ba s ic Rigging S a fe ty Le cture -2015-10-20.pptm69 of 101
Hooks Shank hook Swivel hook Eye hook Grab hook Slip hook Sorting hook Sliding choker hookRev 10/20/2015Ba s ic Rigging S a fe ty Le cture -2015-10-20.pptm70 of 101
Of the wide variety of hooks that are available, only afew types are used at LLE In general, the only hooks used at LLE are the load hooksattached to hoists—The overhead cranes use shank hooks with latches—The electric chain hoists use clevis hooks with latches Most rigging situations at LLE do not require any additionalhooks. Contact ME for situations where additional hooksmay be required Of all of the hooks shown, only the sorting hook may bepoint loaded. All other types of hooks must not be pointloaded.Rev 10/20/2015Basic Rigging Safety Lecture-2015-10-20.pptm71 of 101
The load hook Always inspect the hook and latch before use Never use a latch that is distorted or bent Always make sure spring will force the latch against thetip of the hook Insure there is no excessive wear in the saddle of thehook Always make sure the hook supports the load. Thelatch must never support the load Latches are intended to retain loose sling or devicesunder slack conditions Latches are not intended to be an anti-fouling device Only load the hook in the “saddle” or “bowl” within 45 of vertical Hooks are only to be loaded In-l
Numerous portions of the ASME B30 standard apply to rigging equipment Each of the B30 sections listed below contain requirements on the selection, use, maintenance, and inspection — B30.1 Jacks — B30.9 Slings — B30.10 Hooks — B30.20 Below-the-Hook Lifting Devices — B30.26 Rigging Hardw
Advanced rigging. This guide outlines the competency based skills needed to carry out basic, intermediate and advanced rigging safety. Basic rigging incorporates the skills needed for dogging. Refer to A guide for dogging, WorkCover Authority of NSW. Basic rigging Those qualified in basic rigging must know how to carry out work associated with:
Stage G: General Rigging & Sailmaking Information Pg 31 Rigging Terms Defined 1. Rigging Options Pg 31 2. Using the Rigging Plan Pg 32 3. Rigging Line & Block Sizes Pg 32 4. Treating the Lines Pg 33 5. Belaying Pins & Their Lines Pg 33 6. Rigging Tools Pg 34 7. Blocks & Deadeyes Pg 34 8. Sailmaking Pg 34 9. Rigging the Model Without Sails Pg 36
elements that can affect hoisting safety, factors that reduce capacity, and safe practices in rigging, lifting, and landing loads. Riggers must also be familiar with the proper inspection and use of slings and other rigging hardware. Most crane and rigging accidents can be prevented by field personnel following basic safe hoisting and rigging .
Rigging products must not be used as personal fall protection equipment (PPE). It is important to mark rigging equipment in such a way that it cannot be confused with, nor used as, PPE. Store climbing and rigging equipment separately. manufacturer; TEUFELBERGER Fiber Rope GmbH, Vogelweiderstrasse 50, A-4600 Wels Type application(cf. table 1)
1-800-836-1885 n (315) 451-3440 n Fax (315) 451-1766 n rigging@jrclancy.com n www.jrclancy.com Rigging System Design Guide n TyPeS OF rigging rigging can b
does not replace the requirement for qualified Riggers to be familiar with Standards, Regulations and Policies listed in the References. The material presented is consistent with standards for Basic Rigging and Flex Rigging training. Advanced Rigging and Mobile Crane certification concepts are outside the scope of this book.
Crane Inspector Basic Rigging & Inspection Assembly/ Disassembly Director Crane & Derrick Engineering Installation, & Planning Aerial Work Platform Inspector Regulatory Compliance Electrical Systems Equipment Inspector Overhead Crane Operator Intermediate Rigging Accident Investigation Rigging & Load Handling Equipment Engineering & Applications
locked AutoCAD .DWG format electronically with a relevant index/issue sheet. Estates and Facilities currently use AutoCAD 2016. Drawings supplied on CD should be clearly labelled with the Project details, date and version of AutoCAD used. Drawings produced using BIM software (such as Revit) must be exported into AutoCAD DWG format before issue. The University will also require any original BIM .
