Truss Rod Adjustment - Guild Acoustic guitar Owner's Manual & Warranty

Truss Rod Adjustment

String tension exerts a tremendous bending force
on the guitar neck. Environmental conditions such as
temperature and humidity may also cause bowing of
the neck.
Guild guitars have an adjustable truss rod (or dual
truss rods on all Guild 2-strings) running the length
of the neck that counteracts this force, strengthens the
neck and ensures straightness.
A truss rod that is too loose will result in a concave
neck bow (action too high); a truss rod that is too
tight will result in a convex neck bow (low action and
fret buzz).
Should the neck of your guitar require adjustment,
first remove the rod cover located on the headstock
above the nut (the guitar should remain tuned to
pitch during this procedure). Then insert a Guild truss
rod adjustment wrench (p/n 350-952-000) or an
equivalent /4" nut driver (see illustration 4).
If the neck has a concave bow, tighten the truss rod
nut by turning it clockwise. If the neck is humped or
has a convex bow, loosen the truss rod nut by turning
it counter-clockwise. Adjust the rod only a partial turn
at a time, allow time for the wood to settle, and sight
down the neck after each adjustment. Be careful not to
over-tighten the rod.
If you meet excessive resistance or if you have any
doubts in your ability to make this adjustment
correctly, take your guitar to an Authorized Guild
Service Center. Please note: Truss rod adjustments
are considered routine maintenance and will
not be covered under the Guild warranty.
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