Hitching a Ride on the Lift!

John R. Yannaccone, PE, Senior Mechanical Engineer ::::
Case Synopsis: Two painters were operating a telescopic boom lift on a commercial building construction site. The painters were about to break for lunch when a repairman, also working on the roof, asked the painters for a ride to the ground so he wouldn’t need to go to the other side of the building and descend a ladder. The lift operator moved the platform into position so the repairman could climb onto the lift platform. When the repairman climbed on, the lift began to tip over causing the repairman, and the painters, to fall to the ground. The repairman sustained serious injuries while the painters sustained only minor injuries.
Expert Analysis: Analysis in this case revealed the weight of the two painters and their equipment was within the safe load limits for the full operational range of the lift. The two painters were wearing proper fall protection harnesses attached to designated anchor points inside the lift. When the repairman entered the lift, the additional weight exceeded the safe operating capacity of the lift at the extended position, and then tipped over. Continue reading “Hitching a Ride on the Lift!”