When preparing the torque tool, when should the socket be installed into the nut runner?

The correct approach is to install the socket into the nut runner before attaching the air line. This procedure is essential for several safety and operational reasons.

Firstly, installing the socket while the tool is not connected to a power source (in this case, the air line) minimizes the risk of accidental activation. If the air line is connected first, there is a possibility that the tool could be inadvertently triggered, which can lead to injuries or damage to components being worked on.

Additionally, having the socket in place before connecting the air line ensures that the nut runner is ready for immediate use once it is pressurized. This streamlines the workflow and helps to avoid unnecessary delays.

In contrast, installing the socket after the air line has been connected increases safety risks and could lead to mishaps during operation. Ensuring the tool is configured correctly from the outset is a critical aspect of performing tasks in aerospace assembly safely and efficiently.