06 08 2012 1926 251 requirements for load testing and marking of special custom design rigging accessories.
Below the hook lifting devices load testing.
2 1 1 1 marking the rated capacity of each lifting device must be marked on the main structure where it is visible and legible.
For hooks used in frequent load cycles or pulsating loads the hook shank threads and split nut if provided should be periodically inspected by magnetic particle or dye penetrant.
An employer who follows asme b 30 20 specifically sections 20 1 3 1 through 20 1 3 7 and 20 1 3 9 with respect to inspections for below the hook lifting devices other than for slings would be considered to be in compliance with osha.
2 1 1 structural and mechanical lifting devices.
Heavy process duty applications overloads old equipment and the use of below the hook lifting devices are all factors that may contribute to cumulative fatigue.
Asme b30 20 below the hook lifting devices addresses structural and mechanical lifting devices vacuum lifting devices operated close proximity lifting.
This chapter outlines the requirements for designing fabricating operating testing inspecting and documenting of below the hook lifting devices fabricated in house or purchased for a specific specialty use.
Commonly referred to as a lifter a below the hook lifting device attaches a load to a hoist.
Going over 125 percent would violate 29 cfr 1910 179 k 2 while failing to go right up to that point wouldn t meet standard 1926 251 a 4.
The construction industry recognizes the necessity for inspections of below the hook lifting devices.
In the below the hook lifting world there are two main standards that you should familiarize yourself with if you re purchasing or designing an engineered below the hook lifting device.
If you use a gantry crane with a custom lifting accessory then you ll want to test it with a load of precisely 125 percent of the manufacturer s limit.
The following requirements apply to below the hook lifting devices such as spreader bars lifting yokes lifting baskets and lift fixtures.
Manufacturer s name and address serial number lifter weight if over 100 lbs.
1926 251 proof testing of lifting beams used to lift wind turbine components.
These devices can come in several forms including structural and mechanical lifting devices vacuum lifting devices close proximity operated lifting magnets remotely operated lifting magnets scrap and material handling grapples and clamps.
They can be in the form of structural and mechanical lifting devices vacuum lifting devices operated close proximity lifting magnets remotely operated lifting magnets or scrap and material.
Below the hook lifting devices or devices used for attaching a load to a hoist can contain components such as slings hooks and rigging hardware.
Chapter the sanford underground research facility surf manages the use of below the hook bth equipment to ensure the safety of the personnel and prevention of property damage.
Below the hook lifting devices shall be marked with at least.
