Seeburg Q160 help needed

I just purchased a Q160 Seeburg and would like to find a user manual plus I need some advise: It will play 3,4 or maybe even 6 records (free play) then it can no longer find any selection it just does a couple of loops and returns to home base. When it cools down it will play but again repeates the same process. Can anyone help with this issue. I would also like to know how to change it from free play to coin operation.
Thanks for your help
Reef Chief

Manuals for this machine are available from http://www.alwaysjukin.com or http://www.victoryglass.com. As to your problem, I would change the .05 uF capacitor and the 5.6 M Ohm resistor in the pulse amplifier. Also, you might want to check my website:

http://home.pacbell.net/fmillera/troubleshoot.htm

Look at symptom #3.

Cheers,

Tony Miller