July 1: So it begins. Don't worry, this is not in the correct legal jurisdiction!
Item 6: Manual Control Lever Inner Nut Assembly Note
WARNING: This page is about a different car, the 2004 Mercury Mountaineer and 2004 Ford Explorer. However, it is still accessible from the selected car via links, so may be relevant.
Install the manual valve inner lever onto the manual shaft and loosely install the nut.
Fig 1: Installing Manual Valve Inner Lever Onto Manual Shaft