Replace dried out grease in a vintage Elgeet 13mm f/1.5

[iKokomo]

I got an amazing deal on a “for repair” Elgeet 13mm f/1.5 for my BMPCC. The problem with this lens is that the focusing mechanism is nearly frozen. Aperture works great.

I was wondering if anyone had a diagram or instructions on how to open this lens and replace the old grease?

Also, what are things that I need to be aware of when I open a lens? I have never done this before.

Lastly, what kind of replacement grease should I use?

Thanks!

[OculusObscura]

Not sure he’s done this lens but, his channel is a great resource for DIY lens repair https://youtube.com/user/mikeno62