Section 5 - Setup
J Bass Section 5 - 2 -
R
eference
…
check out the following reference:
https://www.youtube.com/watch?v=c2DlwxSIPA
Setting Up Your Bass Guitar: Bridge Action Height Adjustment
(Step 2 of 4) by John Caruuthers
http://www.youtube.com/watch?v=zz9UKX2lcxw
Bridge Saddle Adjustments
String
Height
@ 12
th
E (top string)
4/32”
A
3/32”
D
3/64”
(+)
G
3/64”
Table 5.2 Bridge Adjustment Heights
5.1
Adjust the Guitar Neck: Truss Rod
The first major procedure in the setup is adjusting the neck relief. Neck relief simply refers to how much
the neck bows. The degree of bowing in the neck is a matter of personal preference and is correlated to
your playing style.
5.1.1
Adjustment Check
First, check your tuning.
1.
Put a capo at the first fret and press
the sixth string at the last fret.
2.
With a feeler gauge, check the gap
between the bottom of the string and
the top of the 8th fret—you should
have about .015”.
3.
If the height is correct, go to Step 5.2.
5.1.2
Adjustment
To adjust the neck relief, locate the truss rod at the neck/headstock junction. The truss rod is adjusted
with the supplied Allen wrench. Tightening the truss rod adjustment bolt will cause the neck to warp
backward (too much and the strings will buzz on the frets), and loosening it will cause it to bow forward
(giving more relief.)
1.
Sight down the edge of the fingerboard
from behind the headstock, looking
toward the body of the guitar.
a.
If the neck is too concave
(action too high), turn the truss rod nut clockwise to remove excess relief (only adjust ¼
turn at a time).
b.
If the neck is too convex (strings too close to the fingerboard), turn the truss rod nut
counter-clockwise to allow the string tension to pull more relief into the neck.
2.
Check tuning, then re-check the gap
with the feeler gauge and re-adjust
as needed.
5.2
Bridge Saddle
This will adjust the height of the strings
over the 12
th
fret. Minor adjustments are
made by raising or lowering the bridge
Reference: …check out the following reference
:
Setting Up Your Bass Guitar: Adjusting The Truss Rod (Step
1 of 4) by John Caruuthers
https://www.youtube.com/watch?v=te44eWXd9pc
http://www.youtube.com/watch?v=4j3QryKIXrc
TIP:
…
do the neck adjustment in a series
of intermediate steps and re-tune your guitar before
each step – different tension on the strings changes the
adjustment of the neck