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Below the hook

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Rigging Inspection Rigging Inspection Safety Training Safety Training Below the Hook Below the Hook
Transcript
Page 1: Below the hook

Rigging InspectionRigging InspectionSafety TrainingSafety Training

Below the Hook Below the Hook

Page 2: Below the hook

4 Basic Types of Slings4 Basic Types of Slings

Alloy Chain SlingsAlloy Chain SlingsSynthetic SlingsSynthetic SlingsWire Rope SlingsWire Rope Slings

Metal Mesh SlingsMetal Mesh Slings

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Inspections On All Types Of SlingsInspections On All Types Of Slings Operator InspectionOperator Inspection Inspect each time before use, no records requiredInspect each time before use, no records required Technical InspectionTechnical Inspection At a minimum once every 12 monthsAt a minimum once every 12 months Records requiredRecords required

1910.184(e)(3)(ii)1910.184(e)(3)(ii) The employer shall make and The employer shall make and maintain a record of the most recent month in maintain a record of the most recent month in which each alloy steel chain sling was thoroughly which each alloy steel chain sling was thoroughly inspected, and shall make such record available inspected, and shall make such record available for examination.for examination.

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Alloy Chain SlingsAlloy Chain Slings

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Alloy Chain Sling InspectionAlloy Chain Sling Inspection Each Time Before UseEach Time Before Use Tag Must Be PresentTag Must Be Present Tag Must Be LegibleTag Must Be Legible Hooks, No Throat SpreadHooks, No Throat Spread No Distorted or Bent Links, Link WearNo Distorted or Bent Links, Link Wear No Distorted or Bent CouplersNo Distorted or Bent Couplers Not “Stretched”Not “Stretched”

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1910.184 (B)1910.184 (B) Sling identification.Sling identification. Alloy-steel chain slings shall have Alloy-steel chain slings shall have

permanently affixed durable permanently affixed durable identification stating size, grade, identification stating size, grade, rated capacity and reachrated capacity and reach

Use Chart for checking capacity of Use Chart for checking capacity of sling and sling angle .. sling and sling angle ..

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Load Capacity ChartLoad Capacity Chart

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D RING / HAMMER LOCKD RING / HAMMER LOCK

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SLING REACHSLING REACH

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Chain SlingsChain Slings

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Rigging Protection FromRigging Protection FromCutting or SlippingCutting or Slipping

Softeners, padding or use of blocking..

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1910.184 (e)(7)(i)1910.184 (e)(7)(i) 1910.184(e)(7)(i)1910.184(e)(7)(i) Worn or damaged alloy steel chain Worn or damaged alloy steel chain

slings or attachments shall not be slings or attachments shall not be used until repaired. When welding or used until repaired. When welding or heat testing is performed, slings shall heat testing is performed, slings shall not be used unless repaired, not be used unless repaired, reconditioned and proof tested by the reconditioned and proof tested by the sling manufacturer or an equivalent sling manufacturer or an equivalent entity.entity.

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HOIST CHAIN IS GRADE 8 / CASE HARDEN

Sling Chain is Grade 80 Will Stretch.

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SLING LATCH’SSLING LATCH’S

PER B30.10c Chapter 10-1 HooksPER B30.10c Chapter 10-1 Hooks 10-1.2.1.2 (4) Inspection10-1.2.1.2 (4) Inspection Latch engagement, damaged or malfunctioning latch (Latch engagement, damaged or malfunctioning latch (if providedif provided))

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Care, use and InspectionCare, use and InspectionThe life and strength of any Sling chains slings depends on proper inspection, The life and strength of any Sling chains slings depends on proper inspection,

maintenance and use.maintenance and use.

For additional information, refer to ANSI B30.9 and OSHA 1910.184For additional information, refer to ANSI B30.9 and OSHA 1910.184. . UseUse

To protect both operator and materials, observe these To protect both operator and materials, observe these precautions when using chain slings: precautions when using chain slings:

Before use, inspect chain and attachments Before use, inspect chain and attachments

Do not exceed working load limit. Any of the factors listed Do not exceed working load limit. Any of the factors listed here can reduce the load the chain will hold: here can reduce the load the chain will hold:

Acceleration in rate of load application can produce Acceleration in rate of load application can produce dangerous overloading. dangerous overloading.

Variation in the angle of the load to the sling - as the angle Variation in the angle of the load to the sling - as the angle decreases, the working load of the sling will increase. decreases, the working load of the sling will increase.

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Free chain of all twists, knots and kinks. Free chain of all twists, knots and kinks. Center load in hooks; hook latches must Center load in hooks; hook latches must

not support load. not support load. Avoid sudden jerks when lifting and Avoid sudden jerks when lifting and

lowering. lowering. Balance all loads; avoid tipping of loads. Balance all loads; avoid tipping of loads. Use pads around sharp corners. Use pads around sharp corners. Do not drop load on chains. Do not drop load on chains. Match the size and working load limit of Match the size and working load limit of

attachments such as hooks or rings to the attachments such as hooks or rings to the size and working load limit of the chain. size and working load limit of the chain.

For overhead lifting, use only alloy chain For overhead lifting, use only alloy chain and attachments (grade 80,100,120). and attachments (grade 80,100,120).

                                                                                                            

                          

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INSPECTIONINSPECTION

Inspect each link for these conditions Inspect each link for these conditions Nicks or gouges. Nicks or gouges.

Excessive wear at bearing points.Excessive wear at bearing points. Stretch. Cuts, burns, heat damage, Stretch. Cuts, burns, heat damage,

Bends or distortions in hooksBends or distortions in hooks

Rust or corrosionRust or corrosion

Uneven lengths when legs are hanging freeUneven lengths when legs are hanging free

                                                                                                              

                  

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Inspection of chainInspection of chain Do not weld or perform local repairs on Do not weld or perform local repairs on

chain slingschain slings Do not use homemade links, makeshift Do not use homemade links, makeshift

fasteners formed from bolts, rods, or fasteners formed from bolts, rods, or other non standard attachmentsother non standard attachments

Do not use field fabricated hooks on Do not use field fabricated hooks on sling chainssling chains

Hook the ends of all empty chains on Hook the ends of all empty chains on the hoist hook or bull ringthe hoist hook or bull ring

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SLING WEARSLING WEARMMMM IncheInche

ss Maximum allowable wear (inches)Maximum allowable wear (inches) Minimum thick-ness allowable at Minimum thick-ness allowable at (inches) link ends (inches)*(inches) link ends (inches)*

5.55.5 7/327/32 -- 11/64 (.171)11/64 (.171)

7.07.0 9/329/32 3/64 (.046)3/64 (.046) 13/64 (.203)13/64 (.203)

10.010.0 3/83/8 5/64 (.078)5/64 (.078) 18/64 (.28118/64 (.281

13.013.0 1/21/2 7/64 (.109)7/64 (.109) 22/64 (.343)22/64 (.343)

16.016.0 5/85/8 9/64 (.140)9/64 (.140) 27/64 (.421)27/64 (.421)

20.020.0 9/649/64 10/64 (.156)10/64 (.156) 34/64 (.531)34/64 (.531)

22.022.0 3/43/4 11/64 (.171)11/64 (.171) 40/64 (.625)40/64 (.625)

26.026.0 7/87/8 12/64 (.187)12/64 (.187) 47/64 (.734)47/64 (.734)

32.032.0 11 16/64 (.250)16/64 (.250) 58/64 (.906)58/64 (.906)

                                                                                                                      

          

                                                                                                                      

          

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Inspection required one time a yearInspection required one time a year InspectionsInspections 1910.184(e)(3)(i) 1910.184(e)(3)(i) In addition to the inspection required by In addition to the inspection required by

paragraph (d) of this section, a through periodic paragraph (d) of this section, a through periodic inspection of alloy steel chain slings in use shall inspection of alloy steel chain slings in use shall be made on a regular basis, to be determined on be made on a regular basis, to be determined on the basis of (A) frequency of sling use; (B) the basis of (A) frequency of sling use; (B) severity of service conditions; (C) nature of lifts severity of service conditions; (C) nature of lifts being made; and (D) experience gained on the being made; and (D) experience gained on the service life of slings used in similar service life of slings used in similar circumstances. Such inspections shall in no event circumstances. Such inspections shall in no event be at intervals greater than once every 12 be at intervals greater than once every 12 months.months.

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Comparisons of ChainComparisons of Chain Grade 40 Steel Transport ChainGrade 40 Steel Transport Chain   1/2” Links1/2” Links 9200# Capacity Horizontal9200# Capacity Horizontal Grade 80 Alloy Steel ChainGrade 80 Alloy Steel Chain 1/2“ Links1/2“ Links 12,000# Capacity@9012,000# Capacity@90°°

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RequirementsRequirements

Rated to capacity of weakest Rated to capacity of weakest componentcomponent

No makeshift links formed from No makeshift links formed from rods, or boltsrods, or bolts

No mechanical coupling links No mechanical coupling links

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RequirementsRequirements No screw linksNo screw links

UNLESS APPROVED FOR UNLESS APPROVED FOR OVERHEAD LIFTINGOVERHEAD LIFTING

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Alloy Chain Sling UseAlloy Chain Sling Use Rated load must be reduced when Rated load must be reduced when

used at temperatures in excess of used at temperatures in excess of 600600° F° F

Consult sling manufacturer before Consult sling manufacturer before use in chemical environments.use in chemical environments.

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WEB & POLYESTER SLINGSWEB & POLYESTER SLINGS

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INSPECTION OF POLYESTER SLINGSINSPECTION OF POLYESTER SLINGS (A) INITIAL INSPECTION(A) INITIAL INSPECTION- BEFORE USE - BEFORE USE

- INSPECTION REQUIRED.- INSPECTION REQUIRED. (B) FREQUENT INSPECTION(B) FREQUENT INSPECTION-TO BE -TO BE

MADE BY A DESIGNATED PERSON MADE BY A DESIGNATED PERSON EACH TIME THE ROUND SLING IS EACH TIME THE ROUND SLING IS USED.USED.

((C) PERIODIC INSPECTIONC) PERIODIC INSPECTION-TO BE -TO BE CONDUCTED AT LEAST MONTHLY.CONDUCTED AT LEAST MONTHLY.

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Synthetic SlingsSynthetic Slings

Sling capacity varies from manufacturer to manufacturer, it has no set standard like wire rope does.

User must look at the Individual Sling Capacity Tag to determine Safe Lifting Capacity of that sling.

If the Tag is not readable or is missing, Do not use it!

Inspect sling before each days use, and as often as necessary during the day to assure safety of sling!

Sharp edges can slice a sling in two without warning as the load is tensioned. Use softeners or padding on corners.

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Synthetic Web Slings UseSynthetic Web Slings Use Not to be used in any area where Not to be used in any area where

fumes, vapors, sprays, mists, liquids, fumes, vapors, sprays, mists, liquids, acids, are present.acids, are present.

Do not use in area where Do not use in area where temperatures exceed 180temperatures exceed 180° F.° F.

1910.184(i)(9)

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OPERATION OF POLYESTER OPERATION OF POLYESTER ROUND SLINGSROUND SLINGS

DETERMINE WEIGHT OF LOADDETERMINE WEIGHT OF LOAD. The weight . The weight of the load of the load shall be within the rated shall be within the rated capacity of the polyester round sling.capacity of the polyester round sling.

Select a polyester round sling having Select a polyester round sling having suitable characteristics for the type of load suitable characteristics for the type of load , hitch and environment., hitch and environment.

Polyester round slings shall not be loaded Polyester round slings shall not be loaded in excess of the rated capacity. Consider in excess of the rated capacity. Consider load angle.load angle.

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Polyester slingsPolyester slings POLYESTER ROUND SLINGS WITH POLYESTER ROUND SLINGS WITH

FITTING WHICH ARE USED IN A FITTING WHICH ARE USED IN A CHOKING HITCH SHALL BE CHOKING HITCH SHALL BE SUFFICIENT LENTH TO ASSURE THAT SUFFICIENT LENTH TO ASSURE THAT THE CHOKING ACTION IS ON THE THE CHOKING ACTION IS ON THE ROUND SLING, AND NEVER ON THE ROUND SLING, AND NEVER ON THE FITTING.FITTING.

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Synthetic SlingsSynthetic Slings

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Sling Choker AdjustmentsSling Choker Adjustments

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POLYESTER SLINGSPOLYESTER SLINGS POLYESTER SLINGS USED IN A POLYESTER SLINGS USED IN A

BASKET HITCH SHALL HAVE THE BASKET HITCH SHALL HAVE THE LOAD BALANCED TO PREVENT LOAD BALANCED TO PREVENT SLIPPAGE.SLIPPAGE.

ENSURE THE SLINGS FITTING IS THE ENSURE THE SLINGS FITTING IS THE PROPER SIZE TO FIT ON THE CRANE PROPER SIZE TO FIT ON THE CRANE HOOKS BOWL, AND OR OTHER HOOKS BOWL, AND OR OTHER ATTACHMENTS.ATTACHMENTS.

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Basket HitchBasket Hitch

“ “Basket” - loading with the sling passed Basket” - loading with the sling passed under the load and both ends on the hook . under the load and both ends on the hook . You may need two slings to balance the You may need two slings to balance the loadload

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POLYSTER SLINGPOLYSTER SLING

POLYESTER ROUND SLINGS SHALL POLYESTER ROUND SLINGS SHALL NOT BE TWISTED, SHORTEN, NOT BE TWISTED, SHORTEN, LENGTHENED,TIED IN KNOTS, OR LENGTHENED,TIED IN KNOTS, OR JOINED BY KNOTING.JOINED BY KNOTING.

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POLYESTER SLINGSPOLYESTER SLINGS POLYESTER ROUND SLING SHALL POLYESTER ROUND SLING SHALL

NOT BE DRAGGED ON THE FLOOR OR NOT BE DRAGGED ON THE FLOOR OR OVER AN ABRASIVE SURFACE.OVER AN ABRASIVE SURFACE.

POLYESTER ROUND SLINGS SHALL POLYESTER ROUND SLINGS SHALL ALWAYS BE PROTECTED FROM BEING ALWAYS BE PROTECTED FROM BEING CUT BY SHARP CORNERS,SHARP CUT BY SHARP CORNERS,SHARP EDGES,PROTRUSIONS.EDGES,PROTRUSIONS.

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POLYESTER SLINGSPOLYESTER SLINGS POLYESTER SLING SHLL NOT BE POLYESTER SLING SHLL NOT BE

PULLED FROM UNDER LOADS WHEN PULLED FROM UNDER LOADS WHEN LOADS ARE RESTING ON THEMLOADS ARE RESTING ON THEM

POLYESTER ROUND SLING THAT POLYESTER ROUND SLING THAT APPEAR TO BE DAMAGED ARE NOT APPEAR TO BE DAMAGED ARE NOT TO BE USED UNLESS INSPECTED AND TO BE USED UNLESS INSPECTED AND ACCEPTED.ACCEPTED.

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POLYESTER SLINGSPOLYESTER SLINGS POLYESTER SLINGS SHALL BE POLYESTER SLINGS SHALL BE

HITCHED IN A MANNER PROVIDING HITCHED IN A MANNER PROVIDING CONTROL OF THE LOAD.CONTROL OF THE LOAD.

WHEN LIFTING WITH OR WITHOUT WHEN LIFTING WITH OR WITHOUT THE LOAD, PERSONNEL SHALL BE THE LOAD, PERSONNEL SHALL BE ALERT FOR POSSIBLE SNAGGING OF ALERT FOR POSSIBLE SNAGGING OF THE POLYESTER ROUND SLINGTHE POLYESTER ROUND SLING

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POLYESTER SLINGPOLYESTER SLING TWISTING THE LEGS SHALL BE AVOIDEDTWISTING THE LEGS SHALL BE AVOIDED ONLY POLYESTER SLING WITH LEGIBLE ONLY POLYESTER SLING WITH LEGIBLE IDENTIFICATION TAGS SHALL BE USED.IDENTIFICATION TAGS SHALL BE USED. TAGS AND LABELS SHOULD BE KEPT TAGS AND LABELS SHOULD BE KEPT

CLEAR FROM THE LOAD AND CHOKE CLEAR FROM THE LOAD AND CHOKE POINTSPOINTS

AVOID ALL SHOCK LOADS.AVOID ALL SHOCK LOADS.

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POLYESTER SLING REMOVAL FROM SERVICEPOLYESTER SLING REMOVAL FROM SERVICE

REMOVE FROM SERVICE IF IDENTIFICATION REMOVE FROM SERVICE IF IDENTIFICATION IS MISSING OR UNREADABLEIS MISSING OR UNREADABLE

MELTED,CHARRING OR WELD SPATTER ON MELTED,CHARRING OR WELD SPATTER ON ANY PART OF SLINGANY PART OF SLING

HOLES, TEARS,CUTS,EMBEDDED HOLES, TEARS,CUTS,EMBEDDED PARTICLES,ABRASIVE WEAR,OR SNAGS PARTICLES,ABRASIVE WEAR,OR SNAGS THAT EXPOSE THE CORE FIBERS OF THAT THAT EXPOSE THE CORE FIBERS OF THAT SLINGSLING

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POLYESTER SLING TO POLYESTER SLING TO REMOVE FROM SERVICEREMOVE FROM SERVICE

BROKEN OR WORN STICHING IN THE BROKEN OR WORN STICHING IN THE COVER WHICH EXPOSES THE FIBER CORECOVER WHICH EXPOSES THE FIBER CORE

FITTING WHEN DAMAGED, STRETCHED OR FITTING WHEN DAMAGED, STRETCHED OR DISTORTED IN ANY WAY.DISTORTED IN ANY WAY.

SLINGS THAT HAVE KNOTS IN THEM.SLINGS THAT HAVE KNOTS IN THEM. ACID OR ALKALI BURNSACID OR ALKALI BURNS

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Synthetic Web Sling Synthetic Web Sling InspectionInspection

Inspect each time before useInspect each time before use Tag present, and legible.Tag present, and legible.

No Burns or melting any type.No Burns or melting any type. No snags, punctures, tears, or cutsNo snags, punctures, tears, or cuts No broken or worn stitchesNo broken or worn stitches No distortion of fittingsNo distortion of fittings No exposed “tattletales”No exposed “tattletales”

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Wire Rope Sling UseWire Rope Sling Use Fiber Core ropes permanently removed Fiber Core ropes permanently removed

from service if exposed to from service if exposed to temperatures in excess of 180temperatures in excess of 180° F.° F.

Consult Rope Manufacturer if iwrc Consult Rope Manufacturer if iwrc ropes used above 400° F or below -60° ropes used above 400° F or below -60° FF

Consult Sling manufacturer Before Consult Sling manufacturer Before utilizing in any chemically active utilizing in any chemically active environments.environments.

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Wire Rope Slings InspectionWire Rope Slings Inspection

Tag present, and legibleTag present, and legible Broken wiresBroken wires Wear or scrapingWear or scraping Kinks,Crushing, Bird Caging, or any Kinks,Crushing, Bird Caging, or any

distortion of the rope.distortion of the rope. Heat damageHeat damage End attachment, or Hook damageEnd attachment, or Hook damage No U-Bolt Clips utilizedNo U-Bolt Clips utilized

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Wire Rope CapacitiesWire Rope Capacities

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D/d RatiosD/d Ratios

D / d ratio is the diameter around which D / d ratio is the diameter around which the sling is bent divided by the body the sling is bent divided by the body diameter of the slingdiameter of the sling

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Safety FactorsSafety Factors

To guard against failure of a wire rope in To guard against failure of a wire rope in service, the actual load on the rope should service, the actual load on the rope should only be a fraction of the Capacity to be only be a fraction of the Capacity to be lifted. lifted.

The safety factor includes reduced capacity of The safety factor includes reduced capacity of the rope below it’s stated breaking strength the rope below it’s stated breaking strength due to wear, fatigue, corrosion, abuse. due to wear, fatigue, corrosion, abuse.

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Wire Rope CoreWire Rope Core Monitor Reduction in Diameter Monitor Reduction in Diameter

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How to measure a wire ropeHow to measure a wire rope

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Maximum Broken Wires 10 per Maximum Broken Wires 10 per lay, 5 per Strandlay, 5 per Strand

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Wire Rope ConstructionWire Rope Construction

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1910.1841910.184 1910.184(f)(5)(iii)1910.184(f)(5)(iii) Kinking, Kinking,

crushing, bird caging or any other crushing, bird caging or any other damage resulting in distortion of the damage resulting in distortion of the wire rope structure. wire rope structure.

1910.184(f)(5)(ii)1910.184(f)(5)(ii) Wear or scraping Wear or scraping of one-third the original diameter of of one-third the original diameter of outside individual wires. outside individual wires.

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Remove Rope From ServiceRemove Rope From Service

1910.184(f)(5)(iv)1910.184(f)(5)(iv) Evidence of heat damage.Evidence of heat damage. 1910.184(f)(5)(v)1910.184(f)(5)(v) End attachments that End attachments that

are cracked, deformed or worn.are cracked, deformed or worn. 1910.184(f)(5)(vi)1910.184(f)(5)(vi) Hooks that have been Hooks that have been

opened more than 5 percent of the normal opened more than 5 percent of the normal throat opening measured at the narrowest throat opening measured at the narrowest point or twisted more than 0 degrees from point or twisted more than 0 degrees from the plane of the unbent hook.the plane of the unbent hook.

1910.184(f)(5)(vii)1910.184(f)(5)(vii) Corrosion of the rope Corrosion of the rope or end attachments. or end attachments.

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Sling checks before liftSling checks before lift

Is the lifting device adequate?Is the lifting device adequate? Check the placard on the crane or Check the placard on the crane or hoist, and then answer three hoist, and then answer three questions:questions:

11. Is capacity adequate for this lift?. Is capacity adequate for this lift? 22. Will it lift high enough?. Will it lift high enough? 33. Is horizontal reach adequate? . Is horizontal reach adequate?

Choose a sling body type which will Choose a sling body type which will best support the load while best support the load while providing adequate rated capacity. providing adequate rated capacity.

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Protecting Rigging FromProtecting Rigging FromDamage or EnvironmentDamage or Environment

Rigging components are expensive to buy and to replace!

Use them properly and store them properly!

Keep wire rope slings lubricated and all rigging stored out of the weather.

Treat the rigging as though your life depended on it! Because it does if it fails!

Don’t use makeshift rigging or attempt to repair any rigging components.

Knots tied in rigging reduces the strength by 50% or more!

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Load Angle Factors Load Angle Factors L A F X LOAD DIVIDED BY LEGS = STRESS ON SLING LEGSL A F X LOAD DIVIDED BY LEGS = STRESS ON SLING LEGS

LAF X LOAD ÷ LEGS=TENSION

<< 707 LBS

^ 2,874 LBS ^

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LOAD ANGLE FACTORLOAD ANGLE FACTOR Load angle factor = L A F X LOAD DIVIDED BY LEGS = STRESS ON SLING LEGSLoad angle factor = L A F X LOAD DIVIDED BY LEGS = STRESS ON SLING LEGS Sling Angle load Angle FactorSling Angle load Angle Factor 90 deg90 deg 1.000 1.000 85 deg 1.00485 deg 1.004 80 deg 1.01580 deg 1.015 75 deg 1.03575 deg 1.035 70 deg 1.06470 deg 1.064 65 deg 1.10465 deg 1.104 L A F X LOAD DIVIDED BY LEGS = STRESS ON THE SLING LEGL A F X LOAD DIVIDED BY LEGS = STRESS ON THE SLING LEG 60 deg 1.11560 deg 1.115 55 deg 1.22155 deg 1.221 50 deg 1.30550 deg 1.305 45 deg 1.41445 deg 1.414 40 deg 1.15540 deg 1.155 35 deg 1.74235 deg 1.742 30 deg 2.00030 deg 2.000 25 deg 2.36425 deg 2.364 20 deg 2.92420 deg 2.924 15 deg 3.86115 deg 3.861 10 deg 5.74710 deg 5.747 5 deg 11.4905 deg 11.490 2 LEGED SLING2 LEGED SLING 90 Deg 1.000 X 1,000 LBS = 1,000 DIVIDED BY 2 = 500 LBS PER LEG90 Deg 1.000 X 1,000 LBS = 1,000 DIVIDED BY 2 = 500 LBS PER LEG 60 Deg 1.155 X 1,000 LBS = 1,155 LBS DIVIDED BY 2 = 577.50 LBS PER LEG60 Deg 1.155 X 1,000 LBS = 1,155 LBS DIVIDED BY 2 = 577.50 LBS PER LEG 45 Deg 1.414 X 1,000 LBS = 1,414 LBS DIVIDED BY 2 = 707 LBS PER LEG45 Deg 1.414 X 1,000 LBS = 1,414 LBS DIVIDED BY 2 = 707 LBS PER LEG 30 Deg 2.000 X 1,000 LBS = 2,000 LBS DIVIDED BY 2 = 1,000 LBS PER LEG30 Deg 2.000 X 1,000 LBS = 2,000 LBS DIVIDED BY 2 = 1,000 LBS PER LEG 5 Deg 11.490 X 1,000 LBS = 11,490 LBS DIVIDED BY 2 = 5,745 LBS PER LEG5 Deg 11.490 X 1,000 LBS = 11,490 LBS DIVIDED BY 2 = 5,745 LBS PER LEG 3 LEGED SLING3 LEGED SLING 90 DEG 1.000 X 1,000 LBS = 1,000 LBS DIVIDED BY 3 = 333 LBS PER LEG90 DEG 1.000 X 1,000 LBS = 1,000 LBS DIVIDED BY 3 = 333 LBS PER LEG 4 LEGED SLING4 LEGED SLING 30 DEG 2.000 X 1,000 LBS = 2,000 LBS DIVIDED BY 4 = 500 LBS PER LEG30 DEG 2.000 X 1,000 LBS = 2,000 LBS DIVIDED BY 4 = 500 LBS PER LEG

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Open EyeboltsOpen Eyebolts

Not Alloy, and Not to be used for lifting

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Un-Shouldered EyeboltsUn-Shouldered Eyebolts

Alloy, No Angular loading allowed 90° only, Minimum of 2x of shank in part to be lifted.

Unshouldered Max Load Lbs.

-Thread Size

Straight Pull 90

1/4 - 20 500 5/16 - 18 900 3/8 - 16 1400 7/16 - 14 2000 1/2 - 13 2600 9/16 - 12 3000 5/8 - 11 4000 3/4 - 10 6000 7/8 - 9 7000 1 - 8 9000

1-1/8 - 7 10000 1-1/4 - 7 15000 1-1/2 - 6 19600

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Shouldered EyeboltsShouldered EyeboltsThread

Size

Straight Pull 90

45 Deg. Pull 45

1/4 - 20 500 125 5/16 - 18 900 225 3/8 - 16 1400 350 7/16 - 14 2000 500 1/2 - 13 2600 650 9/16 - 12 3000 750 5/8 - 11 4000 1000 3/4 – 10 6000 1500 7/8 – 9 7000 1750 1 – 8 9000 2250

1-1/8 – 7 10000 2500 1-1/4 – 7 15000 3750 1-1/2 – 6 19600 4900

Alloy only, Maximum load rating for eyebolts are based on a straight vertical lift in a gradually increasing manner. Angular lifts will significantly lower maximum loads Angular lifts must never be more than a 45 degree pull. Shoulder must be supported for any angular loading. Minimum of 2x of shank in part to be lifted.

45°

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Below the Hook Lifting Below the Hook Lifting DevicesDevices

Anything which does not fall under the Anything which does not fall under the slings category is a below the hook slings category is a below the hook lifting fixture to include lifting fixture to include structural,mechanical, vacuum, or structural,mechanical, vacuum, or magnetic devices.magnetic devices.

Must be designed iaw ANSI B30.20Must be designed iaw ANSI B30.20 Must display the following informationMust display the following information Manufacturers Name and Address

Serial#

Lifter Weight if over 100# or 45kg.

Rated Load

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Below the Hook Lifting Below the Hook Lifting Devices InspectionDevices Inspection

Operator Daily before useOperator Daily before use Periodic at least annually with Periodic at least annually with

recordsrecords

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Below the Hook B30.20Below the Hook B30.20 A LIFTER SHALL BE DESIGNED TO A LIFTER SHALL BE DESIGNED TO

WITHSTAND THE FORCES IMPOSED WITHSTAND THE FORCES IMPOSED BY ITS RATED LOAD, WITH A BY ITS RATED LOAD, WITH A MINIMUM DESIGN FACTOR OF MINIMUM DESIGN FACTOR OF 3,BASED ON YIELD STRENTH, FOR 3,BASED ON YIELD STRENTH, FOR LOAD BEARING STRUCTURAL LOAD BEARING STRUCTURAL COMPONENTS.COMPONENTS.

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SlingsSlings

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RiggingRigging Use approved slings & safety rules Use approved slings & safety rules

for all rigging jobs.for all rigging jobs.

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RIGGING TIPSRIGGING TIPS . . Prevailing work rules and government Prevailing work rules and government

regulations place full responsibility for regulations place full responsibility for proper performance upon the rigger,proper performance upon the rigger, so so it is his duty to be familiar with the it is his duty to be familiar with the condition and capability of all tools and condition and capability of all tools and equipment used, as well as techniques equipment used, as well as techniques employed. One basic rule always employed. One basic rule always applies: Always know ... never guess. applies: Always know ... never guess. Each lift may be divided into three parts.Each lift may be divided into three parts.

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Rigging rule # 1Rigging rule # 1 1. 1. The Lifting DeviceThe Lifting Device - Know its - Know its

capability and limitations, and its capability and limitations, and its condition. When was it last condition. When was it last inspected? If in doubt about capacity, inspected? If in doubt about capacity, check the placard.check the placard.

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Rule # 2 Rule # 2

2. 2. The HitchThe Hitch - Here is - Here is where the rigger can where the rigger can exercise ingenuity.. but it's exercise ingenuity.. but it's also the easiest place to also the easiest place to make a mistake. make a mistake.

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Rule # 3Rule # 3

3. 3. The LoadThe Load - The weight - The weight must be known. But you must be known. But you must also protect the load must also protect the load from possible damage by the from possible damage by the slings ... and protect the slings ... and protect the slings from damage by the slings from damage by the load.load.

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RIGGING RIGGING

Before you select a sling for Before you select a sling for a specific lift, determine the a specific lift, determine the most effective hitch to do the most effective hitch to do the job, protect the load, and job, protect the load, and protect the sling. One of protect the sling. One of three basic hitches will three basic hitches will usually do the job. usually do the job.

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Basket HitchBasket Hitch

“ “Basket” - loading with the sling passed Basket” - loading with the sling passed under the load and both ends on the hook under the load and both ends on the hook or a single master link.or a single master link.

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ChockerChocker

“ “Choker” – loading with the sling passed Choker” – loading with the sling passed through one eye and suspended by the through one eye and suspended by the other.other.

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90 Deg / Vertica90 Deg / Verticall

“ “Vertical” / 90 Deg – loading with the the Vertical” / 90 Deg – loading with the the load suspended vertically on a single part or load suspended vertically on a single part or leg of the sling.leg of the sling.

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The HitchThe Hitch

The type of hitch you select may The type of hitch you select may determine the type of sling body determine the type of sling body that will best do the job, as well that will best do the job, as well as the length of sling that will be as the length of sling that will be needed. Lifting height, overhead needed. Lifting height, overhead clearance and hook travel will clearance and hook travel will affect choice of hitch and length affect choice of hitch and length of sling of sling

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Check Lifting Height for proper Check Lifting Height for proper ClearanceClearance

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RIGGING RIGGING

When attaching a When attaching a sling to eye bolts, sling to eye bolts, always pull on always pull on line with the bolt line with the bolt axisaxis. .

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RIGGINGRIGGING When hitching to bolts screwed When hitching to bolts screwed

into or attached to a load, a side into or attached to a load, a side pull may break the bolts. pull may break the bolts.

You may need to brace the slingYou may need to brace the sling

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Rigging Boxes / CratesRigging Boxes / Crates When lifting crates or wooden boxes When lifting crates or wooden boxes

with a basket hitch, be sure load can with a basket hitch, be sure load can withstand side pressure as tension is withstand side pressure as tension is applied to sling. applied to sling.

Use spreader bars and corner Use spreader bars and corner protectors to prevent damage to protectors to prevent damage to contents. contents.

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RIGGING RIGGING

You can reduce the angle of You can reduce the angle of a choke with a wooden a choke with a wooden block, or blocks, between block, or blocks, between the hitch and the load. This the hitch and the load. This also increases the angle also increases the angle between the two legs to between the two legs to improve sling efficiency.. improve sling efficiency..

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Tag LineTag Line Anytime a load is lifted beyond arm's Anytime a load is lifted beyond arm's

reach with a single-part load line or reach with a single-part load line or straight eye and eye sling, use a straight eye and eye sling, use a tagline to prevent load rotation. If a tagline to prevent load rotation. If a wire rope is permitted to rotate, the wire rope is permitted to rotate, the strands may unlay and the rope's strands may unlay and the rope's capacity will be reducedcapacity will be reduced

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Rigging checks before liftRigging checks before lift

Is the lifting device adequate? Is the lifting device adequate? Check the placard on the crane or Check the placard on the crane or hoist, and then answer three hoist, and then answer three questions:questions:

1. Is capacity adequate for this lift?1. Is capacity adequate for this lift? 2. Will it lift high enough?2. Will it lift high enough? 3. Is horizontal reach adequate? 3. Is horizontal reach adequate?

Choose a sling body type which will Choose a sling body type which will best support the load while best support the load while providing adequate rated capacity. providing adequate rated capacity.

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The proper choice will provideThe proper choice will provide 1. What is the Lifting capacity 1. What is the Lifting capacity

needed.needed. 2. Proper D/d Ratio2. Proper D/d Ratio. (Outside Dia of . (Outside Dia of

sheave to outside Dia of rope)sheave to outside Dia of rope) 3. Handling characteristics needed 3. Handling characteristics needed

for rigging for rigging ( Do you need a tag line?)( Do you need a tag line?) 4. Protect your slings from damage.4. Protect your slings from damage.

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5. Minimal damage to the load.5. Minimal damage to the load.

Use a shackle in the sling eye during a Use a shackle in the sling eye during a choke to protect sling body against choke to protect sling body against excessive distortion. excessive distortion.

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Proper Shackle UseProper Shackle Use

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Always put pin through sling eye rather Always put pin through sling eye rather than against the sling body since the than against the sling body since the sling movement of the sling body could sling movement of the sling body could rotate pin, causing it to come loose. rotate pin, causing it to come loose.

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Lifting a BundleLifting a Bundle

When lifting a bundled load When lifting a bundled load with a single sling near the with a single sling near the center of gravity, a choke is center of gravity, a choke is more effective than a basket more effective than a basket hitch to prevent unbalance hitch to prevent unbalance and slipping of the load in and slipping of the load in the slingthe sling

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RiggingRigging When rigging two or more straight slings as When rigging two or more straight slings as

a bridle, select identical sling constructions a bridle, select identical sling constructions of identical length - with identical previous of identical length - with identical previous loading experience. Normal stretch must be loading experience. Normal stretch must be the same for paired slings to avoid the same for paired slings to avoid overloading individual legs and unbalancing overloading individual legs and unbalancing the load during the lift. Two basket hitches the load during the lift. Two basket hitches can be rigged with two slings to provide can be rigged with two slings to provide better balance for long loads. Be sure that better balance for long loads. Be sure that slings cannot slide toward one another slings cannot slide toward one another along the load when the lift is made. along the load when the lift is made.

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TurnbucklesTurnbuckles Turnbuckles must be proof load Turnbuckles must be proof load

tested at 2 times the SWL and tested at 2 times the SWL and tagged or markedtagged or marked

Inspect Turnbuckles for cracks and Inspect Turnbuckles for cracks and bends in framebends in frame

Check for Thread damage & bent Check for Thread damage & bent rodsrods

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TurnbucklesTurnbuckles

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Rigging SelectionRigging Selection

3. Are the Working Load Limits Adequate?

a. What is the weight of the load?

b. Where is the center of gravity?

c. What is the sling angle?

d. Will there be side loading?

e. Capacity/Type of the rigging to be used?


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