Technics SL-1310 automatic doesn't function. SM needed

Got this Technics SL-1310 on the workbench, as the automatic doesn't work. Plays fine as manual turntable.
A look under the hood shows an automatic function (levers, wheels etc.) far more complicated than I would think was necessary.....
I can't seem to find the Service Manual anywhere online, so if you have it then please share it with me.
Thanks it advance