Replying to Bike people: Shimano Acera issues...

I have Shimano Acera front derailleurs and i cant seem to find where to adjust the range of the front derailleur when shifting gears. I have 3 front rings (small, med, large) and when i am on the med ring and shift to either the small of large one, my front derailleur doesn't move enough in either direction to shift the gears.

Is this adjusted on the front derailleur itself or something on the click shifter? I have tried adjusting something where the cable meets the shifter but i;ve had no luck...