How do I know whether my chains are strong enough to secure a load?

Ag Safety and Health December 10, 2012 Print Friendly and PDF

Every manufactured chain and strap has a working load limit (WLL) that is approximately one-third of its break strength. When manufactured, all chains are marked with a grade rating. This rating, which may differ by manufacturer, corresponds to the WLL of the chain. If the rating is not visible, assume that the grade is 30, the lowest grade. It is recommended that the total WLL of all tie-downs must equal at least half of the cargo's weight. For example, if you are hauling a small tractor that weighs 12,000 lb., you will need at least four tie-downs with a combined WLL of 6,000 lb.

Periodically inspect chains for deeply nicked or cracked links. Remember, "a chain is only as strong as its weakest link." Additionally, remember that the chain hook must have a closure to prevent the hook from slipping off the chain during use.

For more information, click here to be directed to the U.S. Department of Transportation, Federal Motor Carrier Safety Administration.

Connect with us

  • Twitter
  • Facebook
  • YouTube

Welcome

eXtension is an interactive learning environment delivering research-based information emerging from America's land-grant university system.

LOCATE

Donate to Ag Safety and Health

Your donation keeps eXtension growing.

Give Now

Resources

SAY Project and National Clearinghouse

Mobile Apps

Recursos en Español sobre Seguridad y Salud Agrícola

 

Resources Available

Education and Outreach

Self-Paced Learning

Instructor Led Learning

Training and Resources for Instructors

Webinars

Upcoming Events

Video Resources

 

Articles (by Topic Area)