Dan,
The 6-14065 is the one I have as well. All the guts are under the red roof building that also has the lever that controls manual and automatic arm operation.
There is a tiny black drive belt in there that I replaced. I got the replacement from an vintage record player supply house that matched the original specs. There is also a tensioning screw that presses on the belt so optimistically that might be all your unit needs is a tightening of that adjustment. Lastly, Northwest Shortline made an exact copy of the nylon drive gear that is prone to deterioration, so that is worth a look as well.
That's about all the detail I can remember. Hope it helps some...
KD ! Good to hear from you! I posted this above info, but you beat me to it!😁
John
