Why shouldn't an operator put too much dependence on any one form of load indicating device or overload warning system?

An operator should not put too much dependence on any one form of load indicating device or overload warning system because these systems may not be functioning correctly. This presents a critical safety concern in hoisting operations where accurate load measurements are essential for preventing accidents. If an operator relies solely on a single device and that device fails or provides inaccurate readings, it can lead to serious overloading situations, compromising both the safety of the operation and the well-being of personnel on site.

While it's true that other factors can contribute to a safe operating environment, such as potential confusion from multiple systems or the need for calibration, the key point is the reliability of the device itself. An operator must ensure that multiple safety systems are in place and being relied upon to mitigate the risk of equipment failure or misleading data from any single device. Therefore, incorporating a range of monitoring tools increases overall safety and aids in making well-informed decisions during hoisting operations.