Which steps should be taken to verify a new lift configuration will not overload the equipment?

• A. Consult load charts for the configuration, calculate tensions, and verify total load does not exceed capacities.
• B. Rely on operator experience alone.
• C. Only check the crane's rated capacity label.
• D. Perform a full load test with the heaviest anticipated load.

Answer: (A)

Understanding how lift capacity changes with configuration is key. Load charts are built for specific crane setups and show the maximum safe load at different radii, boom lengths, extensions, and attachments. Using these charts, you determine the allowable load for the exact configuration you’re using.

But numbers alone aren’t enough. You must translate the configuration into forces the crane will experience. This means calculating the tensions in each hoist line based on the geometry of the lift, angles, and attachment points, and then checking that every line, hook, and rope has a capacity above its share of the demand. The total load the crane must support—including the crane’s own weight, the load, and any dynamic or side forces from movement—must stay within the crane’s rated capacity. Stability factors, such as proper outrigger deployment and counterweight position, are also part of not overloading the equipment.

A full test with the heaviest anticipated load is not the right first step and can create unnecessary risk. You verify capacity through planning and calculation first, then test only under controlled, approved procedures if required.

Relying on operator experience alone or on a single rating label misses how configuration, geometry, and dynamics change capacity, so they’re not sufficient on their own.