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Truss Rod Adjustments for Pro, Roots, Atlas and Passport Series
To adjust the double-action truss rod on a Pro, Roots, Atlas or Passport
Series instrument, you will need a 4mm Allen wrench (included). The
truss rod adjustment nut is located inside the soundhole, just under
the end of the fingerboard, and
accessible via a hole in the brace at
that location. Make adjustments by
turning the wrench in the appropriate
direction. Keep the wrench between
10 and 2 o'clock, and reposition the
wrench as necessary. You may find it
helpful to spread the D and G strings
apart while turning the wrench.
When making truss rod adjustments, turn a little at a time - an eighth or
quarter turn - and check the results before turning again. Allow some time for
the neck to 'settle in' to an adjustment before turning again. Use extreme
caution when making adjustments, and if you are uncomfortable with this
procedure, consult a trained Breedlove Service Technician before attempting.
To tighten the truss rod, turn the nut clockwise (as seen from above). This
causes the neck to bow backward, lowering the string height. If you go too far,
the strings will buzz. To loosen the truss rod, turn the nut counterclockwise.
This causes the neck to bow forward, raising the string height. Go too far, and
the guitar will be hard to play. Always make adjustments with your guitar
tuned to concert pitch.
Breedlove Steel-String Bracing & the JLD® Bridge Truss
All Breedlove Custom Shop steel-string guitars (except for the Revival
Series), Pro Series and Atlas Series guitars use the JLD Bridge Truss system.
This device is a cantilevered truss that helps to counterbalance string tension
at the bridge, creating a relaxed top and improved structural integrity.
This allows us to brace our tops in a very progressive way, with a focus on
realizing the full acoustic potential of the top. A relaxed top provides maximal
wavelength response, and a synergy is created by our use of a graduated top
thickness, balanced scalloped bracing, and a pinless bridge in combination
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