Assuming that you got an original 160 and not a latee variant......
The 160 is a very basic TT and Thorens got just about everything right on it.
You will love it!
First of all, as with any belt driven TT, it may or may on may not need a new belt which are readily available an eBay, etc .
With the 160, be aware that the tracking force is attained via a very light spring that is adjusted by a calibrated wheel.
Just make sure that is working properly by using a separate TF scale.
When working, it is actual pretty accurate.
The AS scale can be a bit difficult to decipher but just know that there are scales for conical vs elliptical stili.... and wet or dry play back.
AS is attained magnetically and works very well when adjusted properly.
Also, the one sore point on these otherwise great Thorens TTs is the RCA plugs. Thorens used plugs which are prone to corrosion and most just replace them with something better. Be aware that the right RCA ground is also the TT ground, so there is no separate ground wire.
There is no need to replace the RCA wires.. just replace the plugs as needed.
Other than that, just routine lubrication is prudent.. particularly for the spindle bearing.
Be aware that the head shell has azimuth adjustment. It is mounted on a relatively tight slip joint and can be "twisted" either way to dial in perfect azimuth adjustment.
BTW, there is a very good Thoren Baerwald arc protractor for theses TTs (160-145- 165... for both the the TP 16 and TP-11 arms) available here in the library and I highly recommend it. The 160 has the TP-16 arm.
There is a wealth of info on the net for refurbishing and lubing these great TTs