Technics SL-PD887 and 888 and 987 - Where are the lubrication points? Plastic gears probably?

Hi, 
I want to proactively lubricate the rotating mechanism of my 
5 disc CD Player Changer
Technics SL PD 888 and my first one Technics SL PD 987.. ? 

Where specifically and what thickness of oil. Please.  

Thanks for any info.  

These players are very well made!  

That first one the PD987 I bought new during 1996/1997.  

I have used it many times 
 and it is still working.  
 I have never needed to change the small belt yet! (2025)

I do notice a slight noise while the tray is turning though. 
I suppose using a light oil on the cogs of the plastic wheels at least.. 

Brian Patrick 

Yonkers, NY