Jaen Siracusa 15E+ Посібник - Сторінка 11

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Adjusting the Truss Rod Tension

You should do this...

When there are buzzes but the action is high. This has three main

probable causes:

- Change of the tension exerted on the neck, usually following the

change of the string gauge or alternate tunings.

- Wood adaptation to the strings/truss rod tension and compression

forces. This is especially important during the first year of life of the

instrument.

- Changes in relative humidity.

Necessary tools: There are two different methods, depending on your

playing style. To perform the "A" method you will need a thin guitar string

(0.010") and, perhaps, some assistance. For the "B" method, you won't

need the string. If, after the check, you must make the adjustment, you will

need both the small and the large Hex keys supplied with the guitar.

Method A.- This is the way to adjust your guitar if your style is more limited

to the first frets, including lots of open strings.

Press a string (preferably, the third or fourth) simultaneously on



frets 1 and 15. Check if the 0.010" string, working as a gauge, fits

between the top of the seventh fret and the bottom of the chosen

string. If it fits snugly, then stop here: you won't need any

adjustments.

Remove the magnetic truss rod access cover: insert the small Hex



key into its hole until you find some resistance, then pull.

If the gauge (the 0.010" string) fits loose (so there is still some



clearance), turn the adjustment nut with the large Hex key,

clockwise as seen from the peghead end, an eighth of a turn or less

(see drawing).