What is the purpose of load indicator devices and how do they function?

• A. Indicate when a load approaches or exceeds rated capacity by triggering alarms or visual indicators; help prevent overloading and inform the operator to stop or adjust.
• B. They automatically adjust crane speed to match load.
• C. They measure ambient temperature at the load.
• D. They replace the need for rigging inspections.

Answer: (A)

Load indicator devices monitor the weight being lifted and compare it to the crane’s rated capacity for the current setup. They typically display the current load and trigger alarms or visible indicators when that load approaches or exceeds the limit. This gives the operator a clear, immediate cue to stop, reconfigure, or otherwise reduce the lift before an overload occurs, protecting the crane, rigging, and personnel. They don’t automatically adjust crane speed, don’t measure ambient temperature at the load, and don’t replace rigging inspections. The core function is to indicate when a load is near or over capacity and prompt corrective action.