It might not need any adjustment at all. Either way, it's easy to do. Here is a video of John Carruthers, who has worked for just about every manufacturer out there (as well as his own custom builds). The first video is for TR adjustment. I post the other three in case you have interest in learning to do a complete set up. Which is good to know and will save you $$ by doing it yourself.
This is what I needed. Thanks!