Headstock lathe lubrication recommendation

Hello,

I have start hearing a small noise in my headstock. I presume it is lack of lubrication (machine was bought second hand), and I am not sure if the headstock should be filled with lubrication, and if so, of what kind. I do not have machine manuals.
Can someone provide a recommendation?

Pictures attached.

Thank you very much.

It would be helpful if you said the model of the lathe!!!

MIKE CNC Machine Services INC | Cincinnati Milacron MachinesCNC Machine Services

Sorry. It is a Falcon 200