How do I set the mechanical timer on my culligan water softener it has 12 pins

Check these links :
Drinking Water Systems | Timers & Manuals | Culligan Water (http://www.culliganwater.com/residential/resources/timers-manuals/)
Culligan Softener and Filter Timer Instructions (http://www.culligan-mechanicsburg.com/TimerInstructions.html)

BTW, it looks like there is more than 1 timer.