When is it permissible to modify a crane?

Modifying a crane is a critical action that can impact safety, performance, and compliance with regulatory standards. The correct approach to modifying a crane is to obtain written approval from the manufacturer. This is essential because the manufacturer has the specific expertise and knowledge about the crane's design, specifications, and limitations. Any modification done without their approval can lead to unforeseen safety hazards, affect the crane's operational integrity, and potentially void any warranties.

Modifications might alter various aspects of the crane, such as its load capacity, stability, or control functions. Therefore, it is imperative that any changes be guided by the manufacturer's recommendations to ensure that the crane continues to operate safely and effectively.

Other response options, while recognizing circumstances in which modification might occur, do not prioritize the necessary manufacturer approval. Modifications solely based on an operator’s judgment or during routine maintenance without proper authorization can result in significant risks, including accidents and equipment failure. Engaging with a certified technician may be prudent during repairs, but without the manufacturer's consent, such actions could still be unsafe.