Rigging Safety

johnanewquist@gmail.com

Draft 5 4 2016

1910.184(c)(7)Slings shall be padded or protected from the sharp edges of their loads

Objectives

• TO1 – Identify unsafe rigging• TO2 – Be able to state common OSHA hazards

You

• Safety Glasses• Safety Shoes• Puncture Resistance

Gloves

June 2014

• Broken toes. • Leather work boots.• No safety toe• Crane dropped load as

lifted

Oct 2015

• Steel Beam dropped on foot.

• 6000 lbs

176(b)

178(l)(6)

178(p)(1)

178(l)(4)(iii)

178(l)(1)(i)

241

262

279

339

544

Materials Handling & Storage [1910.176 – .184]

6

SUBPART N

POWERED INDUSTRIAL TRUCKS – COMPETENCY TRAINING

POWERED INDUSTRIAL TRUCKS – REFRESHER TRAINING IN RELEVANT TOPICS

POWERED INDUSTRIAL TRUCKS – CERTIFICATION OF TRAINING

POWERED INDUSTRIAL TRUCKS – SAFE OPERATING CONDITION

MATERIAL HANDLING – STORAGE OF MATERIAL SHALL NOT CREATE A HAZARD

MATERIALS STORED TO PREVENT SLIDING FALLING, OR COLLAPSE

251(a)(2)(i)

250(a)(1)

251(b)(1)

251(a)(1)

252(a)

9

9

10

17

18

Materials Handling, Storage, Use & Disposal [1926.250 – 252]

7

GENERAL RIGGING EQUIPMENT IDENTIFICATION

EXTERIOR DROP CHUTES

RIGGING EQUIPMENT INSPECTION & REMOVAL FROM SERVICE

WELDED ALLOY STEEL CHAIN SLING IDENTIFICATION

SUBPART H

Region V Fatalities

• OSHA in Region 5 had 140 investigated fatalities in 2015 up +28.

• 48 Illinois. • 29 in Wisconsin up 50%• 48 in Ohio

• 227 Struck by• 185 Falls• 166 Caught in• 41 Electrocutions• 32 Exposure• 30 Other• 20 Fire/Explosion

May 2016

Apr 2016

Nov 2015

August 2014• $15• Sold as ½ inch alloy steel• Supposed to lift 70,000

pounds• Specifications• 1) we are factory

2) from 3/8" to 1 3/8" 3) galvanized / red painted 4) 40Cr steel / stainless steel 5)mini order accepted

13

April 2015• Lifting a piece of pine

about 5 foot long 18 inches across

• “the load made it to the ground ok the hook of the biner caught the strap and held till we lowered it down.”

1910.184(d)Inspections. Each day before being used, the sling and all fastenings and attachments shall be inspected for damage or defects by a competent person designated by the employer.

May 2014• Providence RI• 8 hurt in fall• The US Occupational Safety and

Health Administration said the rigging used put excessive weight on a carabiner, causing the metal loop to fail, and the acrobats, who were hanging by their hair, to fall 15 to 20 feet

• According to OSHA, circus staff violated both industry practice and the manufacturer’s instructions for using the carabiner by attaching it so it was pulled in three directions, rather than two.

15

Key Changes in Z359.1

• Section 3.2.1.4• Gate face strength

requirements have changed from 220 lbs. (1kN) (old Standard) to 3,600 lbs. (16kN) (new Standard).

June 2013

• Officials canceled work on the St. Charles County bridge after a 55-gallon drum being lifted by a crane fell on 51-year-old Jerseyville IL man.

• He was pronounced dead at the scene.

Drums 2015

Definitions• One wire rope lay

1910.184(f)(1)Sling use. Employers must use only wire-rope slings that have permanently affixed and legible identification markings as prescribed by the manufacturer

DefinitionsWire rope – consists of many individual wires laid

into a number of strands which are in turn, laid around a center core.

1910.184(f)(5)(i)Ten randomly distributed broken wires in one rope lay, or five broken wires in one strand in one rope lay.

Definitions

• Kinked Sling

1910.184(c)(3)

Sling legs shall not be kinked.

DefinitionsRated capacity – the maximum allowable working load.

Wire Rope

Slings• Remove from service immediately if: – Acid or caustic burns – Melting or charring of any part of the sling surface – Snags, punctures, tears or cuts – Broken or worn stitches – Distortion of fittings Not exactly - “If you see red, the sling is dead.”

Synthetic Slings Exercise

05/02/2023 24

1910.184(c)(1)Slings that are damaged or defective shall not be used

Inspection• Wire rope and synthetic slings addressed in the B30.9 ASME standard require:

• 1. Documented periodic inspection at least annually, but condition of individual slings not required.

• 9-6.9.3 Periodic Inspection • (d) Documentation that the most recent

periodic inspection was performed and shall be maintained.

• (e) Inspection records of individual slings are not required.

Rigging Safety

• Allow for D/d ratio on all wire rope slings.

Loss Factor

Rigging• Protect sling from sharp surfaces

• Dekalb accident 1997• Employees were positioning a 22,000 pound

generator with the use of a truck-mounted crane and four synthetic web slings.

• While the employees were moving the generator, the slings contacted a steel purlin and were cut.

• The generator fell and rolled onto the employees.

• Employee #1 suffered fatal internal injuries. • Employee #2 suffered back injuries and was

hospitalized.

• Photo is an example

Chain Slings

Only Grade 8 or better Alloy Chain can be used for overhead lifting purposes! All chain is not rated the same!

Chain must have a capacity tag attached to it.

Chains will withstand more rough handling and abuse, but a chain with the same rated lifting capacity of wire rope will be much larger in diameter and heavier in weight

Chain Slings 2015

Chain Slings

• Four grades:– Grade 28 General Utility Chain– Grade 43 High Test Chain– Grade 70 Binding Chain– Grade 80 Alloy Steel Chain: The only one used for overhead

lifting

G 80

Alloy Steel Chain Slings

• All SlingsPermanently affixed durable identification stating

• Size• Grade• Rated capacity• Sling manufacturer

• Table H-1 for wear

Shackles Pins

Shackles

• In rigging applications, the maximum included angle at the top, if a shackle is used would be:

• 1. 90 Degrees • 2. 120 Degrees • 3. 180 Degrees • 4. 360 Degrees

ANSI standards

• ASME non-inspection standards• ASME B30.5: Mobile and Locomotive Crane• ASME B30.9: Slings• ASME B30.10: Hooks• ASME B30.20: Below-the-Hook Lifting Devices• ASME B30.26: Rigging Hardware

Mar 2014

• Cedar Rapids IA• Jacob B. "Jake"

Harper, 28, died Friday after steel pipes slipped off of a trailer, struck him and caused fatal injuries

Summary

• Inspect rigging every day• Look for 3600 pound gates on caribiners and

Snaphooks• Protect yourself with PPE• Develop procedures for unloading.• Everything should have size, grade and

capacity for rigging.• Look at rigging angles for loss on slings