Belt has come off my numakr tt1610's

1) Remove the platter - just lift up
2) Underneath the platter, you'll see a small lip section
3) Wrap the belt around this lip
4) Put platter back on turntable
5) Rotate platter until you see the motor shaft through the holes on the platter - a brass round looking piece
6) Pinch the belt around the motor shaft.
7) That's it.

- OPTiC
MasterTech
Digital Analog Therapy
Turntable Parts : Turntable Repairs