Starbord trim sender popped off. How do I know the position
 

Hi guys, so I wanted to clean up the inside of the starbord trim sender on my bravo 1. The white disc inside popped off before I could note it's position. How do I put it on at the proper orientation. I will likely need to adjust it. But ATM I don't know at all which spot to push it on as a good starting point. Thanks
https://cimg1.ibsrv.net/gimg/www.off...8d7a8284f5.jpg

See the "alignment key" that points at the center of the black section? there is an alignment mark on the housing portion that corresponds. Pop it back together with the marks aligned, and the adjust as needed.