What action should a signal person take if they notice unsafe conditions during rigging?

In situations where unsafe conditions are observed during rigging, the appropriate and responsible action is to immediately halt the operation and address the issue. This is crucial because safety is the top priority in any rigging and hoisting activities. If a signal person notices something that poses a risk to personnel or equipment, continuing with the operation could lead to accidents or injuries, which could have serious consequences.

Halting the operation allows for a thorough assessment of the unsafe condition, enabling the crew to take corrective measures. It is essential for both the signal person and other team members to ensure that no one is placed in harm's way due to negligence. This action also aligns with safety regulations and best practices in the industry, reinforcing the importance of a proactive approach to safety over the potential inconvenience of delays.

The other options, while they may seem pragmatic, do not prioritize safety adequately. Continuing the operation to avoid delays disregards the risk involved, consulting the equipment manual may not directly address on-site safety issues, and notifying the site manager after the operation occurs poses a risk while waiting for action to be taken. Thus, taking immediate action to halt and address unsafe conditions is the most effective strategy in ensuring safety in rigging operations.