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Product Resource Information

Scope

THE ALBERTA OH&S ACT, REGULATION AND CODE 2018, THE ASME B30.26-2015 STANDARD AND MANUFACTURERS OF RIGGING BLOCKS ALL STATE THAT USERS OF RIGGING BLOCKS MUST BE TRAINED IN THE SELECTION, INSPECTION, CAUTIONS TO PERSONNEL, EFFECTS OF ENVIRONMENTS AND RIGGING PRACTICES ASSOCIATED WITH THE RIGGING BLOCKS. FAILURES DUE TO MISSUSE HAVE RESULTED IN SERIOUS INJURIES AND DEATH. THIS SECTION WILL PROVIDE YOU INFORMATION ON THE SAFE USE OF RIGGING BLOCKS.

Employer, Worker, User, Supervisor and Supplier Responsibilities

Users must be trained in the selection, inspection, cautions to personnel, effects of environments, and rigging practices associated with Rigging Blocks.

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Can you prove users are competent in the selection, inspection, cautions to personnel, effects of environments, and rigging practices associated with Rigging Blocks?

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If a user is not competent in the selection, inspection, cautions to personnel, effects of environments, and rigging practices associated with Rigging Blocks they must have direct supervision from a competent worker

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If not competent in the selection, inspection, cautions to personnel, effects of environments, and rigging practices associated with Rigging Blocks do users have direct supervision?

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Do you have documented policies and procedures in the selection, inspection, cautions to personnel, effects of environments, and rigging practices associated with Rigging Blocks?

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An employer must identify responsibilities for the user of Rigging Blocks

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The use of Rigging Blocks can create hazardous situations

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Have Supervisors taken all precautions to protect the health and safety of every worker under the Supervisors supervision.

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Have Suppliers ensured the equipment supplied is in a safe operating condition, and that it complies with this Act, regulation and the OHS Code  

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Legislation, Standards and Specifications

Alberta Occupational Health and Safety Act, Regulation and Code 2018

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American Society of Mechanical Engineers B30.26-2015, Chapter 26-5 Rigging Blocks

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Manufacturer's specifications for the type and style of Rigging Block.

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Manufacturer's referenced standards

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Design Factors

What are the manufacturer's design factors for the Rigging Blocks you are using?

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Markings

Each Rigging Block shall be durably marked to show the name or trademark of the manufacturer

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Each Rigging Block shall be durably marked to show its rated load 

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Each Rigging Block shall be durably marked to show its rope size(s)

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Training

It is important that all Rigging Block users be knowledgeable about the safe and proper use, application of Rigging Blocks, be thoroughly familiar with the manufacturer's recommendations, and safety material provided with each product. In addition all Rigging Block users need to be aware of their responsibilities outlined in all applicable standards, regulations and policies

What are the training requirements for Rigging Block users?

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How does your company monitor the training requirements for Rigging Blocks?

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How have users been trained in the requirements for Rigging Blocks?

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Training records should be kept to show users were trained in the requirements of Rigging Blocks.

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Manufacturer's specifications for the Rigging Blocks must be available to users

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Where are your manufacturer's specifications for the Rigging Blocks kept?

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How do you ensure users are familiar with the manufacturer's specifications?

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Have employers identified hazards associated with the use of Rigging Blocks?

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Have users identified the hazards associated with the use of Rigging Blocks?

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Inspection Requirements

There are 3 types of inspection that are required to be carried out on Rigging Blocks, these are Initial, Frequent and Periodic

All new Rigging Blocks shall have an initial inspection completed by a designated person

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Prior to and during use all Rigging Blocks shall have a frequent inspection completed by a designated person

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How often are frequent inspections completed

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What must be checked on a frequent inspection

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All Rigging Blocks must have a periodic inspection completed by a designated person

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How often are periodic inspections completed?

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What must be checked on a periodic inspection?

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How does your company identify a Rigging Block has had a periodic inspection?

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Removal Criteria

A Rigging Block must be removed from service if any of the following criteria deems that the Rigging Block is not fit for use.

Rigging Block identification missing

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Rigging Block identification illegable

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Misalignment or wobble in sheaves

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Excessive sheave groove corrugation or wear

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Loose or missing nuts, bolts, cotter pins, snap rings, or other fasteners and retaining devices

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Pitting or corrosion

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How much pitting or corrosion is allowed

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Bent, twisted, distorted, stretched, elongated, cracked, or broken components.

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Wear, nicks or gouges 

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How much wear nicks or gouges are allowed

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Reduction of the original catalog dimensions

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How much reduction is allowed

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Damage to load bearing threads

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How much thread damage is allowed

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Unauthorized welding or modification

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Damaged Hooks as per ASME B30.10

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Damaged Shackles as per ASME B30.26

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Other conditions, including visible damage, that cause doubt as to continued use

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Selection, Limitations and Use

All Rigging Block users must be aware that their Rigging Block capacity may change depending on the sling angle, angle of loading, and environment it is used in.

Rigging blocks having suitable characteristics for the application, included angle, and environment shall be selected in accordance with the recommendations of the rigging block manufacturer or a qualified person.

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The rated load of the rigging block shall not be exceeded.

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Rigging blocks that appear to be damaged shall not be used until inspected and accepted as usable.

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The minimum D/d ratio between the sheave pitch diameter and wire rope diameter is 6.

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All portions of the human body shall be kept from between the rigging block, its running lines, the load, and any other rigging during lifting or load handling activities.

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Personnel should stand clear of the suspended load.

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Personnel should stand clear of rigging when it is under tension.

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Personnel shall not ride rigging blocks.

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The rigging block components shall be fully engaged, with all fasteners and retaining devices in place and in good working order before use.

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Contact with sharp edges that could damage the rigging block should be avoided.

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Shock loading should be avoided.

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The load applied to the rigging block should be in-line with the sheave and load fitting(s) to prevent side loading of the block

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Ensure the rope is in the sheave groove when the rigging block begins to take load

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The line load multiplied by the block load factor shall not exceed the rated load of the rigging block

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Rigging blocks should not be dragged on an abrasive surface.

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Load line fittings shall not contact the rigging block sheave(s).

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Maintenance

Are Rigging Blocks stored correctly when not in use

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Are Rigging Blocks subjected to mechanical damage?

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Are Rigging Blocks subjected to corrosive actions?

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Are Rigging Blocks subjected to extreme heat?

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Misconceptions

Misconception 1. If you have attended a training course you are a competent rigger.

Training is only one part of being competent to carry out your job, you must also be adequately qualified and have sufficient experience.

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