| Typically it is turned clockwise to reduce the amount of forward bow or relief.
However, if you don't have any experience doing this, I would suggest taking it to a guitar tech and having them do it. If you goof it up you will have a very expensive repair on your hands.
With that said, here are the basic rules for adjusting a truss rod:
- turn it slightly (1/8 - 1/4 turn) in the counter clockwise direction to ensure it is not binding
- return to the original position by reversing the above counter clockwise turn.
- you should not turn a truss rod more than 1/4 turn at a time. Now turn it 1/4 turn in the clockwise direction. Tune the bass up and let it settle for at least 24 hours. During this time the bass can be used as usual.
- after the 24 hour settling period, check it again. If it is still too high, another 1/4 turn clockwise, retune and another 24 hour settling period. Repeat until the proper amount of relief is reached.
Note: Some very stiff necks or necks that have not been adjusted for a long time may need to be put in a neck clamping jig to take out the forward bow a bit so that the truss rod can be adjusted without tension on it. However, in these situations the 1/4 turn at a time rule still stands (in my book, anyway).
After all is said and done, a quick checkover to ensure no frets have popped up slightly, and a check of the intonation and bridge saddles is also warranted (ie: a setup will be needed when done).
Again, I would suggest taking to a local guitar tech for this if you're not familiar/comfortable with it.
:^)~
__________________
Regards,
-Grandon-
"The Bass Kahuna"
www.gwbasses.com
www.basskahuna.com
|