I have an NAD 5040 semi-automatic belt-drive turntable which has a couple issues. Whenever I cue the tonearm, or move the arm over to play a 45, the auto-return kicks in and returns the arm to the rest. I've tried spinning the platter just in case it is out of gear and no fix. Could it need old grease removed and new put on the mechanisms? The arm seems to move OK when the return kicks in. It just kicks in when it shouldn't. It plays through 12"s fine. Also, when stopping, the arm drops into rest and just shifts a little toward the platter. Kind of a pain since the power stays on and the platter keeps spinning. Could this be related? Maybe a bearing? Anyway, if anyone is familiar with the NAD, please Help It is one of my other tables so I still have food for my earholes. Thanks!!