Chains Sling and Things

What holding you up

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Every Project must have an overall lifting plan that details the projects’ management processes for the management and co-ordination of lifting activities including:

– Specified Team responsibilities– Who will provide and maintain lifting equipment and

gear– By whom and how lifting plans will be prepared– How will lifting plans be checked and agreed– How will co-ordination of lifting activities take place

Lifting - Planning

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Necessary assumptions

Webbing slings are to be no older than 6 months from date of 1st Use

Webbing slings are NOT to be re-tested. After 6 months from date of 1st Use, or if damaged, contaminated etc, they are to be destroyed

All operatives are required to have evidence that they are trained or accredited to be fit for the work they are employed to carry out

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General…

All lifting accessories are to be uniquely identifiable Identification number & date tag on webbing sling

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Chain lengths are only to be reduced by the use of properly constructed shorteners or clutches

General…

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• When using individual slings in a multi-leg lift, always remember the loading factors; -

• For example; - when using 2 fabric slings on a multi-leg lift, factor in 1.4 x the weight of the load. This is the same as single leg chains when working out the SWL

• Single leg is load tested vertically, when multiples used, angle imposes additional load into the lifting gear

Loading factors…REMEMBER

Leg Loadings

Weight exerted on any leg of a sling or chain will increase the greater the angle

Angle between 2 chains or webbing slings must NEVER exceed 90°

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4 legged slings

Loose Bars / Tubes / etc

Method:

Two leg webbing slings

Double wrap to avoid slippage

Precautions:

Where choked, the SWL is reduced (20% or more – Check with your Crane Supervisor)

Position of slings to be determined to limit sag in centre of bundle or at either end

Consider requirement for Tag lines to land loadP bar Y Safety Consultants Alberta Canada

Scaffold tubes

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Slings wrapped in opposite directions

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Loose scaffold tube – unacceptable?

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Loose re-bar

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Acceptable…

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Unacceptable – excessive deformation

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Use chain clutches to level load…

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Pre-fabricated Reinforcement

General notes:

Fabricated items should be designed and constructed to allow crane lifting and have such lifting points identified

Each cage to have been inspected prior to lifting and approved for lift

Slinging points to be a minimum of 3 links down from the top

On initial lift, check balance point is correct and that deflection is acceptable

Stop and consult Appointed Person if excess deflection.

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Re-bar lifting beam – (walls)

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Unacceptable…

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System column shutters

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Tableforms

Method: Tables are to be lifted at the designed lifting points only Properly designed, tested lifting equipment to be used Method statement/risk assessment to be rigidly adhered

to when lifting these shutters

Precautions: Exclusion zones to be established below all areas where

these shutters are being removed from the building Additional training may be required for slinger/signallers

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Acceptable…

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Unacceptable…

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Both on same load…

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Acceptable…

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Method: Typical load, rigid sheets such as Plywood, scaffold boards

Double wrapped with webbing slings or chains unless banded

Precautions: Webbing slings to be less than 6 months from 1st issue

Webbing slings must be protected from sharp edges, not be worn, have cuts or any damage

The load must be level for uniform loading

Sleeves or secure packing should be used at corners to avoid damaging materials or slings.

Rigid Sheet Materials

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Acceptable…

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Unacceptable…

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Loose timber

Timber to be double wrapped

Slings or chains may be used

Beware of damage to timber if using chains

Bulky loads may require a combination of slings & chainsP bar Y Safety Consultants Alberta Canada

Stillage Bins

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Open Stillages

Method:

Where possible, lift load and stillage separately

Where lifting together, two leg chains or slings double wrapped around both load & stillage

Precautions:

Ensure bite to avoid risk of tube slippage

Avoid risk of compression to structure of stillage

Essential that load is levelP bar Y Safety Consultants Alberta Canada

Brick forks & net

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Rubbish Skips with lifting cradle

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Steelwork positive lifting

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Gas bottles

Bottles to be lifted in a specifically designed & fabricated lifting cage, tested etc as other lifting accessories

Any shackle used to connect to hook etc is subject to a separate test inspection

BOTTLES ARE NOT TO BE LIFTED HORIZONTALLY, OR IN BOAT-SKIPS OR IN ANY GENERAL BUILDERS SKIPS

Gas bottles

Bottles are to be physically secured into lifting cradle

Acceptable?

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Specialised lifts – Glass stillage

Stillages should be used when lifting glass

Glass to be secured to the stillage

Stillage should be thoroughly examined & tested

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Specialised lifts – vacuum lifters

A secondary mechanical device must be used when using vacuum lifters

These may need removal for FINAL locating

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If you have any questions, If you have any questions, please ask your supervisorplease ask your supervisor

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