BELOW THE HOOK (bth) LIFTING DEVICES

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ASME has been defining crane safety since 1916.


ASME B30.20 addresses Structural and Mechanical Lifting Devices, Vacuum Lifting Devices, Operated Close Proximity Lifting Magnets, Remotely Operated Lifting Magnets, and Scrap and Material Handling Grapples.  It offers comprehensive solutions applying to the marking, construction, installation, inspection, testing, maintenance, and operation of equipment used for attaching loads to a hoist.


Why should an employer care if their device was designed and manufactured in accordance with ASME B30 series. In particular, why ASME B30.20 or ASME BTH-1? These are standards that have been carefully developed to ensure that the user has a safe lifting experience. ASME standards require that  lifting devices physically include: (1) Rated loading, (2) Identification name plates that provide manufacturer's name, serial number, lifter weight, service class, and design category, (3) guarding for moving parts, and (4) electrical compliance with NFPA standards These attributes are an important part of development of an adequate instructional manual and maintenance plan.


Safe operation of well designed lifting devices also include  operational manuals and maintenance manuals. Manuals or documented instructions should preventative maintenance, periodic adjustments and repairs, and a list of replacement parts. Operational instructions will clearly identify propoer methods for using the device and identify potentially unsafe operations.


So, why follow ASME standards ... it's all about work place safety!

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  • Use the device only in accordance with approved procedures. All deviations must be reviewed and approved by a qualified engineer.
  • Devices shall include a placard that specifies date of last proof load test, date of last inspection, and required date for next proof load test.
  • Devices shall include placards that list maximum rated load, serial number, design category (ASME BTH-1), and device weight, and device manufacturer.
  • Specifically applicable to below the hook devices (Ref: ASME B30.20, ASME BTH-1, ASME B30.9):
  • Ensure that each device includes operating instructions approved by a qualified engineer.
KTM Solutions customers generally request PE stamped drawings as evidence of compliance to the standards.


ARE YOUR LIFTING DEVICES IN COMPLIANCE WITH ASME STANDARD?


As the employer, you are responsible to ensure that all lifting devices are used appropriately and in compliance with the OSHA standards. Are you sure your lifting devices are in compliance?
To start:

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  • Any deviations or modifications to the lifting devices must be approved in writing by a qualified professional engineer
  • Require that all devices include maintenance and inspection plans.
  • Request the proof load inspection report.
  • Require proof that the system was designed to meet the applicable standards.
  • Ensure that all purchased products are designed to applicable industry standards and require a statement of compliance.

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