Macybaby. THANK YOU, that was so kind of you to post those photos!
If it i s okay with you, I will copy and paste that first photo of yours, which shows so nicely exactly the set screw(one of two) which she is to loosen.
Can anyone tell me how to do that marvelous thing with a red "online pen" which I have seen Joe and Steve do, where they write a note or arrow or circle or other directions in red on an online photo?
Many thanks.
Cecilia