Lattice Boom Crawler Cranes (LBC) — Load Charts

A lattice crane chart shows 75,000 lb at 30 ft radius. The load to be lifted weighs 68,000 lb, the hook block weighs 1,800 lb, and the slings weigh 2,400 lb. Can the lift proceed?

• AYes — gross chart capacity (75,000) minus load-handling devices (1,800 + 2,400 = 4,200) = 70,800 lb net available, which exceeds the 68,000 lb load
• BNo — the load weight alone exceeds 90% of the chart value
• CNo — slings must be deducted differently for lattice cranes than telescopic
• DYes — but only if no jib is attached