Do Martin guitars have adjustable truss rods?
The Age of Adjustability It’s only since 1985 that Martin have been installing adjustable truss rods across their range.
Should I tighten or loosen the truss rod to lower action?
To reduce the amount of relief and make your guitar a little easier to play, you’ll want to tighten the truss rod or turn the truss rod nut clockwise.
How does a Martin truss rod work?
The truss rod is almost like one big string counteracting that pull, applying just the right amount of tension in the other direction to pull the neck toward straight. It can be adjusted to get you the right amount of relief in the neck. (Relief is a slight bowing in the neck.)
What year did Martin start using adjustable truss rod?
1985
Martin started using adjustable truss-rods in 1985. Everything they built prior had a non-adjustable truss-rod.
What happens when you adjust a truss rod?
When adjusting a truss rod, in either direction, you are changing the force applied to the rod. The types of forces that act on a truss rod are compression, tension, and torque. Loosening a truss rod (turning counter-clockwise) adds relief to (decreases tension on) the neck which results in increased (higher) string action height.
What is a dual action truss rod?
A dual-action, aka double-action, truss rod enables you to make neck adjustments in both directions (up or down). Uniquely, dual-action truss rods can create relief with or without string tension. Two-way truss rods have adjustment points (nuts) at each end.
What tools do I need to adjust a truss rod?
What Tools Do I Need to Adjust a Truss Rod? 1 Small scewdriver (if you need to remove a truss rod cover) 2 Adjustment Wrench that fits your guitar’s truss rod nut 3 String height gauge with 1/32″ and 1/64″ markings 4 Electronic tuner (clamp on or rack mounted digital tuner) More
What forces act on a truss rod?
The types of forces that act on a truss rod are compression, tension, and torque. Loosening a truss rod (turning counter-clockwise) adds relief to (decreases tension on) the neck which results in increased (higher) string action height. Loosening the truss rod is done to correct backbow.