How does the operator verify the LM's boom length or load radius reading?

To determine the boom length or load radius reading accurately, the operator must rely on actual measurements. This method involves measuring the boom's extension or the distance from the pivot point of the crane to the load being lifted. By taking precise measurements, operators ensure that they have the correct loading parameters, which is crucial for safe operation.

Using actual measurements minimizes the likelihood of error compared to other methods. For example, visual inspection might not provide the necessary accuracy, as it can be subjective and dependent on the operator's perspective. Checking equipment manuals can provide guidelines and specifications but does not verify the current state of the boom or load radius directly in real-time. Relying on electronic devices could be an option, but if they are not calibrated, they may not yield reliable results. Therefore, using physical measurements is the most reliable approach to verify boom length or load radius.