How do you adjust a floating bridge?
To adjust floating bridge intonation on a guitar, first check the 12th-fret harmonic and the fretted 12th-fret tuning of both E strings (high and low). If properly intonated, the fretted and harmonic 12-fret pitches of both E strings will agree, with none of them being sharp or flat.
Can you adjust a guitar bridge?
Adjust Action on a Gibson Bridge
Measure the action at the 12th fret and determine whether you'd like to raise or lower the string height. Adjust the bridge height by turning the slot-head screw on the bridge post, or by whichever method would be applicable to your bridge style.