Who makes these rules . . . anyway?
Transcript of Who makes these rules . . . anyway?
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Lifting a Load is Like Planning an Event
Al Abel
Rig It Right and You Won’t Be Wrong!
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A Wealth of Knowledge
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A Wealth of Knowledge
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• This session will deal with planning a safe lift from start to finish.
• Each participant will prepare a “rigging plan” and review the inspection criteria called out by the ASME B30 standard
Rig It Right And You Won’t Be Wrong
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Rigging is…
“Supporting or manipulatingan object.”
A Definition
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“Overhead lifting is aspecial event.”
Risk is created every time we lift a load off the
ground.
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• Possibility of loss or injury• Someone or something that creates or
suggests a hazard• Peril
Risk Is
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It’s a Fact
“More people are injured while moving materials than while
performing any other function”
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A Recent Article Stated
• “Rigging is an art and a profession”• “An improperly rigged load is a death trap
waiting for the next unsuspecting victim”• “Training must be given to any person assigned
this responsibility”
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What Causes Headlines Like These?
Overhead Sling Causes Injuries
Dropped Load Pins Man
Worker Dies When Load Falls
Worker Severs Finger While Rigging
OSHA Investigating the Accident This Photo by Unknown Author is licensed under CC BY-NC-ND
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Statements You Do NOT Want to Hear…
• “This is better than what we are using…”• “I have no idea what this weighs…”• “The company won’t buy me what I need…”• “A bad sling caused the accident…”• “We have been doing it this way for years…”
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Risk management is a comprehensive set of actions that reduces the risk of a problem, a failure, an accident.
How Can You Manage Risk?
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Risk Management Means
PlanEveryLift!
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What Are the Steps in Our Lifting Plan?
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Who is Responsible (Competent) for this Rigging?
Communications established?
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A person who, by possession of a recognized degree or certificate of professional standing in an applicable field, or who, by extensive knowledge, training and experience, has successfully demonstrated the ability to solve or resolve problems relating to the subject matter and work.”
- From ASME B30.9 Slings standard
What is a Qualified Person?
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Is the Equipment in Acceptable Condition?
Proper identification?
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Are the Working Load Limits Adequate?
Capacity ofGear Known?
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Are the Working Load Limits Adequate?What is the weight of the load?
What is the Center of Gravity (COG)?
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Center of Gravity (COG)
Center of gravity is directly below the load hook
and
connection to the load is above center of gravity
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Sling Protection
Are the slings paddedagainst corners?
OSHA 1910.184(c)(7) Slings shall be padded or protected from the sharp edges of their loads.
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Sling Protection
All slings MUST be protected from corners, protrusions, rough surfaces and, in some cases, where used with rigging hardware.
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Sling ProtectionAll edges on the load, including those that are not the primary load bearing areas, need to be protected
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Sling ProtectionSteel slings such as wire rope and alloy chain should be protected from their load
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Sling Protection
Two different types of protection may be necessary for synthetic sling protection
First: Abrasion protection
Second: Cut protection
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Are the Working Load Limits Adequate?What is the sling angle?
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Are the Working Load Limits Adequate?
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Are the Working Load Limits Adequate?
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Are the Working Load Limits Adequate?
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Are the Working Load Limits Adequate?Is the load rigged to the
center of gravity?
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Will the Load Be Under Control?Is the hitch appropriate?
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Selecting Slings and Hitches for Load ControlSelect the sling to be used considering:
• The hitch to be used• The load that will be applied• The rigging environment
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Single Leg and Load Control
• They provide good control only for simple loads
• Do not use hitch for lifting loose materials, long material, or any load that can tip
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Basket Hitch and Load Control
• For more contact with the load, use a double wrap basket hitch
• Do not overlap at the bottom of the load
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Choker Hitch and Load Control• A choker hitch does not
provide 360° contact with the surface
• A block of wood between hitch and load improves grip and angle of choke
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Will the Load Be Under Control?• Slings capture
center of gravity?• Load lift level?• Load stable?• Tag line required?
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Will the Load Be Under Control?Is the hitch appropriate?
Tag line needed?
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Are There Any Unusual Loading or Environmental Conditions?
Is there any possibility of fouling?Clear of personnel?
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Will the Load Be Under Control?
Wind, temperature, other?
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Remember
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Cranes are Designed for Vertical Lifts Only
Side pulling and end pulling are improper lifts.
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• Pay attention• Perform lift so if there is a failure, no one would get hurt• Keep hands clear - no pinch points• Slowly raise hook block• Slowly raise load to minimize swing• Use proper hand signals (when necessary)• “Respect the load”
Lifting and Moving of Load
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The inspection of rigging gear• Frequent Inspection• Periodic Inspection• Initial Inspection
Rigger’s Responsibility
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• Responsibilities for rigging• Inspection• Connection• Protection
• The capacity of rigging gear• Know the working load limit• Use within the working load limit• Do not modify
Rigger’s Responsibility
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Inspection Frequency
The inspection of slings and hardware includes:• Initial inspection prior to first use• Frequent inspection by designated person each day the hardware is
used• Periodic, at least annually, inspection accomplished by designated
person as part of a thorough inspection program
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Inspection of Hardware
• Wear• Legible identification• Deformation• Cracks or sharp nicks• Modification• Wire Rope at termination• Proper function
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Inspection of Wire Rope SlingsCause for Removal:
• Broken wires• Kinking• Crushing• Birdcaging• Damage to rope structure• Evidence of heat damage• Corrosion• Other damage that would cause doubt• Missing or illegible sling identification• Damaged end attachments
ANSI/ASME B30.9
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Inspection of Alloy Chain SlingsCause for Removal:
• Cracks or breaks• Excessive wear, nicks or gouges• Evidence of heat damage• Weld splatter• Chain or components do not hinge freely• Stretched, bent, twisted or deformed chain links
or components• Missing or illegible sling identification• Other damage that would cause doubt
ANSI/ASME B30.9
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Inspection of Web SlingsCause for Removal:
• Acid or caustic burns• Melting or charring on part of sling• Holes, tears, cuts or snags• Broken or worn stitches• Excessive abrasive wear• Discoloration, brittle or stiff areas on part of sling
which may mean chemical or ultraviolet damage• Missing or illegible sling identification• Other damage that would cause doubt
ANSI/ASME B30.9
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Inspection of Polyester Roundslings
ANSI/ASME B30.9
Cause for Removal:• Acid or caustic burns• Evidence of heat damage or weld splatter• Broken or damaged core yarns• Knots in any part of the sling• Discoloration, brittle or stiff areas on part
of sling which may mean chemical or ultraviolet damage
• Holes, tears, cuts, abrasive wear or snags that expose core yarns
• Missing or illegible sling identification• Other damage that would cause doubt
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If You Have a Plan…
What Are the Steps in Our Lifting Plan?
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The inspection of slings and hardware includes:• Initial inspection prior to first use• Frequent inspection by designated person each day the
hardware is used• Periodic, at least annually, inspection accomplished by
designated person as part of a thorough inspection program
If You Do Your Inspections…
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If You Protect Your Slings…Synthetic slings MUST be protected from corners, protrusions, rough surfaces and in some cases when used with rigging hardware.
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You Will Take the Wrong…
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…and Make it Right!
“Plan Every Lift!”
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Thank You for Attending!
Want more information?
Al Abel – Lifting Specialist• [email protected]• 216.410.1765 (cell)• www.mazzellacompanies.com
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