The front deraileur should be parallel to the outer chain ring with less than 2 millimeters of clearance to the outer ring. Cable tension adjustment should be that the rear deraileur is in the high gear cog in the back(smallest cog)and the chain just barely clears the outer cage plate of the front deraileur in the middle sprocket, front. This should be enough cable tention to get the big ring unless you set the limit to tight. You should also be able to shift into the inner ring as well from the middle ring in high gear as well. If not then adjust FD till you get this set and then come back to rear derail and shift to low gear in back and recheck to see if you can tighten up the low gear adjustment of the front deraileur any further. This should put you back to square one and cable tention on a new bike maybe needs to be readjusted several times until you have about 3-500 miles on the bike. Then the cables can be readjusted and should stay that way for a long time. Good luck