TIPS 1
After tuning accurately, hold the guitar in the playing position. Then press the first string at the first fret and also at the last fret, and measure the gap between the string and fret at the eighth fret in the same way, measure this gap for the lowest string, and make adjustments so that the gaps are in the range of 0.1-0.2 mm.
TIPS 2
Clockwise rotation can make the neck bulge, which can correct the problem that the neck is too concave and the string is too high. Anticlockwise rotation can make the neck cocave, which can correct the problem of buzzing caused by excessive neck protrusion.