Introduction to Basic Rigging 00106-15

Slings and Sling Inspection

PRESENTED BY ORLANDO MORENO+1 770.354.3072 OMORENO@HOTMAIL.COMUNIVERSITY OF CALIFORNIA AT BERKELEY

ObjectivesWhen trainees have completed this session, they should be able to do the following:

1. Identify and describe various types of rigging slings, hardware, and equipment.a. Identify and describe various types of slings.b. Describe how to inspect various types of slings.

Introduction to Basic Rigging 00106-15

Synthetic Slings

Introduction to Basic Rigging 00106-15

Synthetic slings offer many advantages, including:• Soft, helping to protect the surface of the lifted component.• No rust or corrosion.• Lightweight and easy to handle.• Flexible and somewhat elastic under load.• Loads are less likely to twist while in the air.

Synthetic Slings

Introduction to Basic Rigging 00106-15

However, even soft synthetic slings can still abrade surfaces

or damage paint. Protective pads are needed at contact points for delicate

surfaces.

Synthetic Slings

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When red-core warning yarns become exposed, it is an

indication that the sling has been overloaded and should not be used. This is just one reason why a sling should be

taken out of service.

Synthetic Slings

Introduction to Basic Rigging 00106-15

The type of sling chosen depends on the lift.

Synthetic Slings

Introduction to Basic Rigging 00106-15

Both standard and twisted sling styles are very common.

Synthetic Slings

Introduction to Basic Rigging 00106-15

Twin-Path® slings like this one are very different in construction from common slings.

Synthetic Slings

Introduction to Basic Rigging 00106-15

The tattle-tail may also have a fiber optic inspection cable built into it, allowing the user to determine if the tattle-tail has

separated anywhere along its length.

Synthetic Slings

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Instead of red-core yarns, tattle-tails are built in during construction to determine if the sling has been overloaded.

Chain Slings

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Single- and double-basket slings are two common designs.

Chain Slings

Introduction to Basic Rigging 00106-15

Bridle slings can have two, three, or

four legs. This version has

three.

Wire Rope Slings

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Wire rope slings are lighter than chain but can also withstand high temperatures. Like all slings, its

condition affects its actual capacity.

Wire Rope Slings

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The inner core is designed for slight

movement independent of the outer strand

wires.

Synthetic Sling Inspection

Introduction to Basic Rigging 00106-15

Synthetic Sling Inspection

Introduction to Basic Rigging 00106-15

Chain Sling Inspection

Introduction to Basic Rigging 00106-15

Wire Rope Inspection

Introduction to Basic Rigging 00106-15

Wrap Up – Sling Forensics

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WHAT’S WRONG WITH THESE SLINGS?

If a member of your team can accurately identify the damage shown on each of these slings, have your designated “bell”

shout out. If the answer is wrong (accuracy at the discretion of the instructor), the other team gets a chance to name it.

Each team can have up to two chances to answer correctly. A correct answer is worth three points; an incorrect answer subtracts one point.

Wrap Up – Sling Forensics

Introduction to Basic Rigging 00106-15

Wrap Up – Sling Forensics

Introduction to Basic Rigging 00106-15

Wrap Up – Sling Forensics

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QUESTIONS ?

Orlando Moreno+1 770.354.3072omoreno@hotmail.com