As for hoist safety, the pre-operations inspection is very important. How do inspect your hoist before operation? Generally, the hoist safety inspection before operations concerns the topics, such as, what is the Hoist safety Standards and Regulations? What is the difference between frequent and periodic hoist inspection? How to make makings and labels? How to inspect your hoist controls before hoist operation? Operation inspection? How to inspect your hook and chain? Read on for detailed information now.
Before hoist inspection, it is important to know and understand all the hoist safety and inspection standards which apply to your hoists. To different types of hoists, different standards are used, which may confuse you for the different regulations are used to different parts of the hoisting system.
Besides OSHA regulations, the hoist design and inspection standards provided by ASME needs your attention.
Where it gets complicated is that, in many cases, there are multiple safety standards you need to understand to use or inspect a single hoist.
Example 1: Take the lever hoist inspection for example:
In this case, you have to understand two standards to ensure proper use and inspection of the lever hoist.
Ex.1. Inspection to the lever hoist, Ex.2. Inspection to the full lifting system
Example 2： Inspection to the full lifting system
Ex.2. is a diagram of all the standards that can affect a single lifting system. Depending on whether you’re an operator or inspector, there are specific parts of these regulations you need to know detail. When in doubt, always check with the equipment manufacturer.
Frequent Inspections and Periodic Inspections are the two classes of hoist inspections to ensure your hoist safety.
Frequent Hoist Inspections are what Pre-Operational Inspections are. Frequent hoist inspections are conducted between the Periodic Inspections The frequent hoist inspections is not required to be recorded, which is commended to be conducted at the start of every shift to ensure safe working order of the hoist. Frequent inspections enable you to detect if anything is wrong with the hoist before lifting a load.
Periodic Inspections are thorough, detailed hoist inspections, which requires complete disassembly of the hoist.
The periodic hoist inspections are conducted based on the hoist service duty (how often the hoist is used) and hoist application environment. The periodical hoist inspection is required by OSHA, ASME and the hoist manufacturers, which needs to be recorded well to keep on file to ensure your hoisting equipment is safe to use.
Usually, the hoisting equipment have to be inspected according the service duty, shown in the following table:
If you find a lot of issues with an electric hoist during a Periodic Inspection:
Hoist controls is critical to be checked before the hoist operation. If a hoist control is not properly labeled or is not working correctly, injury might occur and damages to the loads might happen. The hoist control should be inspected in two aspects, one is the hoist overall condition the control is in, including clear markings and labels and the second is whether or not the hoist control functions properly. Read on the details on the hoist inspection on controls.
ASME B30.10 covers hook inspection for all hoists, cranes and rigging hooks. Hook inspection is required to ensure safety and to detect defects before operations. When inspecting the hook, there are a few key things to look for:
Nicks and Gouges
Bolts & Pins
Chain inspection is the final step of hoist inspection. The main procedures of the chain inspection mainly goes in this way:
After taking these precautions, the hoist’s upper and lower limits can be tested according to the following procedures:
Next, lower the electric hoist hook to test the operation of the lower limit switch.
Follow the same steps you took when testing the upper limit switch of your electric hoist. As it is lowering, listen for unusual sounds to inspect your hoist Check the chain or wire rope of the electric hoist for defects.
Again, if the limit switch fails, remove the electric hoist from service.
Testing your electric hoist’s upper and lower limits is a vital part of your electric hoist pre-operational inspection to ensure your hoist safety. Whenever you have questions about the functioning of the limit switch on your electric hoist or think there is an issue, take the electric hoist out of work and contact the electric hoist manufacturer. Hoist safety always ranks the top.