To manually orient a joint’s local axes
The current joint’s local rotation axes appear.
in the
Status line (toolbar) to turn on the
Select by component type mode, then right-click the
Select Miscellaneous components
icon and turn on
Local Rotation Axes.

You can now select the local rotation axis of your joint.

rotate -r -os 180 0 0;
This command rotates the current joint’s local axes 180 degrees about its X-axis.