Cleaning a 1960's Nikkor Lens

I found 2 Nikkor lenses that needed cleaning. A 50 1.8 AF and a 2.8cm F3.5 from the mid1960's

The guide I used
https://www.youtube.com/watch?v=UUpchGuTsgg

Видео Cleaning a 1960's Nikkor Lens канала SprocketHoles