Why may load or load moment indicators be considered unreliable?

Load or load moment indicators may be considered unreliable primarily because they can be turned off or malfunction. This poses a significant safety risk on construction sites, where the accurate measurement of loads is crucial to preventing overload situations that can lead to accidents or equipment failure.

If an indicator is turned off intentionally by an operator or becomes inoperative due to technical issues, it fails to provide real-time data on the load being handled. Thus, operators may inadvertently attempt to lift loads that exceed the equipment's rated capacity, leading to potential accidents. This inherent vulnerability emphasizes the importance of checking these indicators regularly and ensuring they are functioning correctly.

While technology may play a role in their reliability, the key concern is the actual operational state of the indicators themselves. Operator training is certainly vital, but the possibility of malfunction is a more direct threat to operational safety, highlighting why this aspect is a critical factor to consider in the reliability of load indicators.