efogen rigging slinging

8/7/2019 Efogen Rigging Slinging

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An ounce of PREVENTION is better than a pound of CURE


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Presentation Outline

Definitions

Safe Rigging Practice

Job Site Considerations

Rigging Selection

Riggers Responsibilities

Safe Slinging Practice

Safe Practices

Inspection

Replacement

Safety Factors

Wire Rope Construction

Wire Rope Capacity Wire Rope Sling Capacity

Choker adjustment

Sling Damage

Synthetic Sling

Chain Sling

Rigging Protection


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Definitions

Balanced load equally distributed on each

side of the point of support.

Breaking strength the approximate point,

when under maximum load, the load handling

device fails.


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Definitions

Balanced load equally distributed on eachside of the point of support.

Bridle sling A sling composed of multiple legs

gathered in a fitting that goes over the liftinghook.

Competent person selected or assigned bythe employer as being qualified to perform aspecific job.

Factor of safety ratio of breaking strength tothe force to be applied.


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Definitions

Rigging it is the handling or load or loads. It

includes the maneuvering, shifting, lifting and

fastening of loads in accordance to procedures

and safe practices.

Safe working load the maximum allowable

working load established by the manufacturer.

Sheave a wheel with a grooved

circumference over which a rope is bent.


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Safe Rigging Practices

Know How to Do It Right!

Then Do It Right!


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Handling, setting and erection of materials and

equipment is a hazardous occupation.

Each operation presents its own peculiarproblems and no two jobs are alike.

With proper consideration taken, each job can

be performed free of bodily harm to the

employee and without damage to theequipment and/or property.


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The person authorized and qualified to do

rigging must always pay close attention to

details.

One careless moment or act can result in

serious injury or death and tremendous property

damage.

Proper rigging is an art and should never be leftto the inexperienced. If you dont know how todo it properly, then dont attempt it.


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Persons performing rigging tasks usually already

have two strikes against them when they start!

Unfavorable Job conditions. Job Schedule to meet.


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Rigging Selection

Very rarely does the average worker on a

construction site get the opportunity to actually

pick the type of rigging equipment required.

They are normally purchased by a supervisor,

the Company Purchasing Department or it is

sent out from another project. This in itself can

create serious problems.


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Rigging Selection

The rigging capacity and the material to be

lifted must match. Using too small capacity

rigging or components is just asking for an

accident to happen.

1. Who is responsible (competent/qualified) for the

rigging?

a. JSA/JHA shall be communicated

b. Specific Toolbox conducted


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Rigging Selection

2. Is the Equipment in Acceptable Condition?

a. Appropriate Type?

b. Proper Identification?

c. Properly Inspected?


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Rigging 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 of the gear?


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Rigging Selection

4. Will the Load be Under Control?

a. Tag Line available?

b. Is there any possibility of fouling?

c. Clear of Personnel?


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Rigging Selection

5. Are there any Unusual Loading or Environmental

Conditions?

a. Wind?b. Temperature?

c. Surfaces? (Ice, Suction, Water)

d. Unstable Object(s)?


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The Users Responsibilities


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Rigger

CraneOperator


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Utilize Appropriate Rigging Gear Suitable For

Overhead Lifting.

Utilize The Rigging Gear Within IndustryStandards And The Manufacturers

Recommendations.

Conduct Regular Inspection And Maintenance

Of The Rigging Gear.


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BASIC SLING SAFETY

PRACTICES

ANSI B30.9


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Definitions

Hitch Basket - loading with the sling passed

under the load and both ends on the hook or a

single master link.


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Definitions

Hitch Choker loading with the sling passed

through one eye and suspended by the other.

Use a bull dog clip to avoid slippage


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Definitions

Hitch Vertical loading with the load

suspended vertically on a single part or leg of

the sling.


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Definitions

Master link a steel link or ring used to support alllegs of a chain or wire rope sling.

Mousing lashing between the neck and the tipof a hook to prevent the load coming off. Ensurethe hook is fitted with latch.

Rated capacity the maximum allowableworking load.


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Definitions

Rigging the connecting of a load to a source

of power so that it can be lifted and moved

safely and predictably.

Safe working load the maximum allowableworking load established by the manufacturer.

Sheave a wheel with a grooved

circumference over which a rope is bent.


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Definitions

Wire rope consists of many individual wires laid

into a number of strands which are in turn, laid

around a center core.


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Safe Practices

1.Slings that are damaged or defective shall not

be used.

2.Slings shall not be shortened with knots or boltsor other makeshift devices.


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Safe Practices

7.Slings shall be padded or protected from the

sharp edges of their loads.

8.Suspended loads shall be kept free ofobstructions.

9.All employees shall be kept clear of loads about

to be lifted and of suspended loads.


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Inspection

Each day before being used, the sling and all

fastenings and attachments shall be inspected

for damage and defects by a competent

person.

Additional inspections shall be performed

during sling use as often as necessary to assure

the safety of the operation.


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Wire Rope Sling Capacities


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Type of Wire Rope Sling

Damage

Birdcage damage


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Synthetic Slings


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Slide 44

A12 If not mistaken, the width of the slings determines the SWL. eg. a 3in wide synthetic sling capacity is 3 tons. Double check

on this.Admin, 3/21/2011


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Rigging Protection From

Cutting or Slipping

Softeners, padding or use of blocking..


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Protecting Rigging From

Damage 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!

Dont use makeshift rigging or attempt to repair any

rigging components.

Knots tied in rigging reduces the strength by 50% ormore!


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How Would You Rig This?

Would it matter if the

tank were full or

empty?


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Removing Jewelry and

Wearing Gloves!

Cause?

Not wearing

gloves and not

taking off the ring.


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Any Questions?

If the student hasnt learned,the instructor hasnt taught!


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THANK YO

U

efogen rigging slinging

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