Hi

I bought my Michell Gyrodec record deck in 1999 and so far I have not replaced the old oil in the brass bearing compartment. I did try to unscrew the small flat round plate that sits on the top of the platter just at the base of the spindle by hand but it was just too tight to remove. So has anybody got any suggestions on how I can do this?

I would be very grateful.
Yas