Manual Hoist Inspection
Hoist read the contents of this manual and applicable portions of ANSI/ASME B30.21, “Manually Lever Operated Hoists” and OSHA Regulations. If the hoist owner/user requires additional information, or if any information in the manual is not clear, contact Harrington or the distributor of the hoist.
Hazards and SolutionsTo a crane operator, few experiences may be as frightening as when a crane becomes unbalanced while a load is being lifted or when the crane collapses under the weight of an excessive load. The following references aid in recognizing and evaluating hazards in the workplace. OSHA Fact Sheet, (October 2010). OSHA Fact Sheet, (October 2010). A is also available. Helps workers identify and control the hazards that cause the most serious construction-related injuries. OSHA Fact Sheet, (September 2005).
Discusses some of the hazards and risks involved in crane operations and identifies information managers should be familiar with if cranes are operating on their site. Department of Energy (DOE), (September 30, 2011). Provides a table of contents to a reference document to be used by supervisors, line managers, safety personnel, equipment operators, and any other personnel responsible for safety of hoisting and rigging operations at DOE sites. Includes links to OSHA fact sheets & QuickCards, related Safety and Health Topics Pages, training programs, and other resources. Includes information such as news releases, public service announcements, fact sheets, frequently asked questions, and more. For additional information, see OSHA's Safety and Health Topics Pages on:.OSHA Bulletins (SHIBs), (HIBs) and (TIBs).
(August 12, 2008). (May 1, 2006). (November 17, 2005). (September 8, 2005). (April 11, 2002). Informs users of aerial lifts that emergency rescue of employees on the lifts can be delayed. (June 22, 1995).
OSHA investigated a fatality involving an elevator car sling and platform (these are also known as platforms, car frames and platforms, car slings, car frames, and safety planks) which was improperly supported during the erection and installation of a traction elevator. (April 19, 1993). Discusses hazardous conditions created as a result of modifications for 'auger piling' operations.OSHA and the Crane, Hoist and Monorail Alliance.Describes standards, reference manuals and safety tips for the application and operation of overhead material handling equipment. A is also available.Identifies items that operators and inspectors need to know when purchasing, installing or using hoist, crane and puller equipment. A is also available.Addresses issues associated with the inspection of wire ropes used on hoists, including information to determine if a wire rope is damaged and should be replaced.Addresses issues associated with radio controls improving safety and productivity when used with overhead cranes.Addresses crane components that can improve safety, reliability, and maintenance, including horns, warning/crane lights, and walkways. Addresses issues associated withoverhead crane safety, including general safety tips for overhead crane operators.
Addresses issuesassociated with overhead crane safety, including tips for overhead crane operators to follow before each shift or before the crane is used each shift.Addresses issues associated with overhead crane safety, including tips for overhead crane operators to follow before operating cranes and applying loads.Addresses issues associated with overhead crane safety, including tips for crane operators to follow while operating a crane and moving loads. Addresses issuesassociated with overhead crane safety, including tips for overhead crane operators to follow before parking the load.Addresses issues associated with overhead crane safety, including tips for overhead crane operators to follow to prevent falls.Includes nine industry standard hand signals that are used for communication between the operator in the crane’s cab and the floor person.Includes a pre-operational equipment checklist for cranes and hoists.
Describes safe lifting practicesfor moving loads of material. A is also available. Thank You for Visiting Our Website You are exiting the Department of Labor's Web server.The Department of Labor does not endorse, takes no responsibility for, and exercises no control over the linked organization or its views, or contents, nor does it vouch for the accuracy or accessibility of the information contained on the destination server. The Department of Labor also cannot authorize the use of copyrighted materials contained in linked Web sites. Users must request such authorization from the sponsor of the linked Web site.
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One of the most important parts of an electric chain hoist to inspect carefully is the lifting chain. Most hoist lifting chains are “case hardened”, meaning that the surface coating of the chain is very hard while the inner metal of the chain is much softer and less resistant to wear. Once the chain has worn through the “case” material, the chain can wear through to failure very quickly. That is why the daily/shift inspection and detailed documented monthly inspection of hoist chains is so critical.The lifting chain may be single fall (1 parts) or multi fall depending on the capacity and reeving requirement.
In a single fall application, the chain only goes over the hoist lifting wheel or sprocket. In multi fall applications, the chain also goes through lower chain sprockets as well. The more pivoting of the chain under load, the more opportunity for wear.Improper lubrication of the load chain is the biggest contributor to rapid chain wear. It does not take a tremendous number of cycles of bare chan over the bare chain to wear through the very thin “case” hardening. Hoist Chain InspectionPrior to inspecting the chain, clean off heavy dirt and grease that impedes proper visual inspectionIf the chain is dirty, it may be difficult to inspect. Therefore, it is important to make sure the chain is clean, so you can see any damage. Inspect as much chain as you can. Myheritage family tree builder 7 premium crack.
On hoists hung from overhead trolleys and beams, you will not be able to inspect the entire length of the chain during a daily/shift inspection. Checking the entire length of the chain will be part of a documented inspection monthly or periodic inspection.When conducting the hoist chain inspection, you should look for:1) Inner link wear, gouges, nicks, and twists: Inner link wear is difficult to see without moving links and is covered in detail during the Periodic Inspection.
However, if something looks wrong, have someone check the chain in more detail.2) Bent or broken links3) Chemical damage or corrosion4) Stretch: Hoist chain does not stretch like lifting chain. It can be difficult to determine if the chain is stretched without measuring it. Full measurements are completed during the Periodic Inspection. However, if something looks wrong or out of proportion, take the time to measure the links. Chain sizes vary from hoist to hoist so you will need to refer to the product’s O&M manual to verify chain measurements.Finally, check for proper lubrication.Lubrication is important to extend the life of the chain and the hoist. It helps wear and helps the chain articulate properly. After you clean it for the inspection, make sure it is properly lubricated.Here are some extreme examples of chain damage.
Often wear will not be this apparent.Important note to the stretched links image:Hoist chain is not designed to stretch.If you see anything of concern, take the hoist out of service and bring it to the attention of a trained hoist inspector for further evaluation.For additional assistance, please call your inspection experts at CRANE 1.