Reply to Technics 1210 Pitch fader issue - recalibration?

Wotcha

was doing my show last evening and was having issue with my right deck - it's ever so slightly speeding up and slowing down whilst revolving. when the pitch fader is at 0% you can see the large dimples on the platter shifting slightly to the left then slightly to the right.

How can I fix this, or should I just get the decks serviced (Idon't believe this has ever been done - the decks are second hand, and the bloke I bought them off was a numpty)

Tar