Yamaha SGV Owner's Manual - Page 6

Adjusting String Height (Action) String height is indicated by the space between the strings and frets. Changing this setting will change the manner in which the guitar plays. If the string height is too high, it will be difficult to play, and if the string height is too low, it will cause fret buzz. 1. Loosen the strings. 2. Use the supplied box wrench to remove the anti slip nut on the 1st string and 6th string ends of the bridge. 3. Use the supplied Allen wrench to turn the height adjustment screw and adjust the height. Turn both screws alternately and adjust the height little by little. Please adjust the space between the 22nd fret and the strings to the following numerical values. • 1st string: 2.0 +/- 0.2mm • 6th string: 2.5 +/- 0.2mm 4. Once adjustment is complete, attach the anti slip nuts and tighten firmly. Anti Slip Nut Raise Lower Box Wrench (Supplied) Anti Slip Nut Make sure that the truss rod (the curvature of the neck) has been adjusted correctly before adjusting the string height. Changing string height will affect string pitch so please tune the strings after adjustment is complete. Bridge Height Adjustment Screw 6