Peavey humbucker model - Manual (Page 23)

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Neck and Truss Rod
Every Peavey steel-string guitar features an adjustable truss rod inside the neck. Truss
rods allow for adjustments in the neck to accommodate changes in string tension
caused by humidity, changing string gauges or tuning. As the backbone of your in-
strument, the truss rod should always be adjusted first step during instrument setup.
(Peavey recommends that you enlist the services of a qualified technician to make
the required truss rod and/or tremolo adjustments on your instrument. Improper
adjustment may damage your neck and void your Peavey warranty.) To gain access
to the truss rod, look for a  mm or  mm allen wrench adjustment screw either at
the end of the neck near the body or at the opposite end near the headstock. Note
that some guitars may require neck removal to gain access to the neck pocket truss
rod. The goal of truss rod adjustment is to create the correct amount of bow in your
guitar’s neck to facilitate optimal playability.
To check the neck’s bow, hold the guitar in normal playing position and follow
this procedure for both E strings (string 1 and string 6). Fret and hold the string
at the first fret, while fretting and holding the same string with your picking-