On most guitars, the same rule for truss rods holds true: Right is tight, left is loose.(Pit Bull Guitars have a two way truss rod) Looking at the truss rod adjustment on top of the neck near the tuners, the right/left arrangement is from the top of the neck looking toward the body of the guitar.
If you have back bow, you need to loosen the truss rod, or turn the nut on the truss rod left. If you have bow, you need to tighten the truss rod, or turn the nut on the truss rod to the right. As a technique, It is a good thing to always loosen the truss rod before adjustment. If you start cranking the truss rod down, and it is already pretty tight, you may break it, and this is something you won't be able to fix at home in an afternoon.
There are generally two types of adjusters on truss rods: A nut for Gibson style truss rods, and a hex-head screw for just about everything else. The hex-head is type is used on Pit Bull guitars.
Make sure the hex-head driver that came with your guitar is well seated – you don’t want to strip it out, or again your have trouble on your hands. Generally about a ¼ turn is enough to move the neck. If you move it more than a full turn, you may have an issue.