I agree with Rgurney. Contact SME via e-mail. They are good about responding. I have an SME Model 10 and its manual recommends 1 drop once a year for the motor. The spindle should get one drop every 1000 hours. My table is about 4 years old and I listen about 500 hours per year. Very reliable. The very slight sound a get from the motor is I think the belt rubbing against the motor pulley. My ear has to be one inch away for me to hear anything. Good Luck.
Peter
Peter