Hey, I recently got a new guitar that featurs a Floyd Rose JT500 double locking tremolo. Last night was the first night I attempted to change the strings (going to a heavier guage). Well, that was the biggest pain in the butt ever. The floating bridge is what is giving me a problem. The strings have the bridge pulling up, not parallel to the body of the guitar (but at a big angle off of the guitar). I have read online that I need to tighten some screws by taking the cover off of the back to access the spring system. There are 3 springs that are connected to a metal plate that are screwed in to the body of the guitar by 2 screws. Are these screws that are in the guitar the screws that I need to tighten to bring the bridge down closer to the body?

Thank you for you help!