first thing, the truss rod shouldnt be used to adjust the action. ang main purpose nun is to compensate sa string tension, to keep the neck straight (or slightly bowed depende sa player).
the action should be adjusted thru the saddles. if you are not pretty much into DIY, dalin mo na sa luthier of your choice.
if you would like to learn, check mo ito:
adjusting your trust rodlesson is, research, research and research again before moving something on your guitar. if still unsure, better ask anyone who might be able to help you. I knew someone who damaged the neck of is guitar kasi inadjust nya ng todo yung truss rod.
i'm not a luthier, pero i do setup my own guitar.
hope this helps.