If the power to a crane fails during operation, what is the first action that should be taken?

In the event of a power failure during crane operation, the first action that must be taken is to set all brakes and locking devices. This critical step is essential for ensuring that the crane is stabilized and secure. Activating the brakes helps to prevent any unintended movement of the load or crane itself, thus mitigating the risk of accidents that could cause injury to personnel or damage to equipment.

Setting the brakes effectively immobilizes the crane and secures the load, which is of utmost importance given that the power failure may lead to a loss of control. While notifying the supervisor, reducing the load, and evacuating the crane are also considered important safety measures, they should occur after the crane's safety has been ensured through the proper application of brakes and locking devices. Securing the crane should always be the immediate priority in such emergency situations to guarantee safety and stability.