What should be done with the boom when leaving telescopic boom cranes unattended overnight?

When leaving telescopic boom cranes unattended overnight, the boom should be fully retracted and stowed. Retracting the boom reduces the risk of damage from environmental factors such as wind, rain, or snow, and prevents potential accidents if the crane were to be tampered with or inadvertently disturbed.

Properly stowing the boom also minimizes safety risks for anyone who may be in the vicinity of the crane. An extended boom poses a hazard not only to the crane itself but also to its surroundings. On the contrary, maintaining the boom at a 45-degree angle, leaving it extended, or just attaching a safety lock does not provide the same level of security and safety, making full retraction the most appropriate choice for responsible crane operation and safety protocol.