Yamaha SLG200 SLG200_Owners Manual - Page 14

Tuning Machine Tension Adjustment (Steel String Model) The tuning machines have spring-loaded mechanisms which automatically take up wear, preventing backlash. However, it is possible to adjust the amount of pressure required to turn the machines. Each machine has a tension adjustment screw q, as illustrated. ● Clockwise screw rotation tightens the machine. The tuning machines should be adjusted to the extent that they are firm, but can turn smoothly. This adjustment is normally unnecessary, and excessive tightening can lead to premature tuning machine wear. Tighten Loosen q Truss Rod Adjustment The curvature of the neck should be slightly concave. Clockwise rotation of the nut tightens the rod and corrects for too much concave bow. Counterclockwise rotation of the nut loosens the rod and corrects for too much convex bend. Make any adjustments gradually. Allow five to ten minutes for setting, and check the curvature after each 1/2 turn of the truss rod nut. Concave If too much convex bend Convex If too much concave bow Unless you have experience with truss rods, we suggest that you entrust this adjustment to your dealer. 14