September 22, 2006, changed Glenn Abbett’s life. On that day, he hired a driver and rented a trailer to deliver a load of tomatoes. The driver of the semi lost control and rolled into oncoming traffic, which caused the semi to flip over and collide with a camper on the back of a minivan. The result of the accident left two people from the van dead.
That painful incident has caused Abbett to change how he secures his loads with tie-downs. “We now tie down our trucks to twice the working load limit required,” he says.
Working load limit (WLL) is the maximum load in pounds that should be anchored by tie-downs. The WLL of the tie-down needs to be at least half the weight of the item being towed.
Fred Whitford, coordinator of the Purdue pesticide program, says when you look at tie-downs, consider what type of tie-down you’ll be using, the grade and WLL of the unit, the type of cargo being transported, and the method of transporting.