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Topic: Raise 1st string full tone from F# to G# |
Paul E. Brennan
From:
Dublin, Ireland
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Posted 18 Oct 2008 12:24 pm |
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Hi Guys, I'm trying to pull my F# 1st string a full tone to G# with a knee lever (have to play Garth Brooks, That Summer  ).
I'm finding that I can't get the knee lever to pull the string all the way to G#. I get to about a quarter tone off G# but then I find the nylon tuner is beginning to engage the changer finger and raising the open F# string. I'm using an Emmons Lashley LeGrande all-pull. The knee lever in question (RKL) is also lowering my G# 6th string a full tone. The pull rod is in the lowest hole of the bell crank and the top-most hole of the changer finger.
Any advice gratefully accepted. |
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Tony Prior
From:
Charlotte NC
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Posted 18 Oct 2008 1:08 pm
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regarding the rod locations.
with the guitar upside down, the changer and bell crank holes closest to the body have the LEAST amount of pull, the holes that are the farthest away from the body have the MOST pull.
Is this where the rod is located on the changer and bell crank ?
You should also look at the 6 lower, that could be stopping the pull, they all work together in HARMONY !
Unscrew the changer nut for the 6 lower all the way out, then adjust your first string raise, start there.
good luck |
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Larry Bressington
From:
Nebraska
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Posted 18 Oct 2008 2:30 pm
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You may need to give the knee lever more travel distance, then you will have to adjust for the 6 th string at the nylon.
Do the pulls as tony sayes first.
Make sure when all is said and done that there is a small amount of free play in the knee lever and rods, or another can o worms will open up with the string returns etc.
_________________
A.K.A Chappy. |
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Paul E. Brennan
From:
Dublin, Ireland
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Posted 19 Oct 2008 3:41 am
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This is good advice. Thank you guys.
Paul. |
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Tony Glassman
From:
The Great Northwest
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Posted 20 Oct 2008 11:36 am
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| Tony Prior wrote: |
regarding the rod locations.
with the guitar upside down, the changer and bell crank holes closest to the body have the LEAST amount of pull, the holes that are the farthest away from the body have the MOST pull. |
While that's true at the bellcrank.......the quickest stiffest pull at the changer (least mechanical advantage) is at the leverage position CLOSEST to the body. |
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Charles Dempsey
From:
Shongaloo, LA
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Posted 20 Oct 2008 3:44 pm
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Here 'ya go. This is on my new L2, so it's the factory setup.
The arrows point to the nylon tuners we're concerned with.
Like someone said, you might have to adjust the lever stop to get more travel too.
Charlie
_________________
Yes officer, I know I smell like beer. I'm not drinking it, I'm wearing it! |
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Tony Glassman
From:
The Great Northwest
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Posted 21 Oct 2008 12:22 am
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It looks like your 1st string is set to pull fast and short, with the rod passing from the position closest to the body at the changer to the hole farthest away from the body at the bell crank. Also it looks like a compensator is on there too........The 6th string lower is at the easiest and longest throw point at the changer.....but, I can't see what bell crank hole the lower rod hooks into.... it appears to be somewhere in the middle.
First thing I'd do is to make sure that the 6th string is purely lowering at the RKL. You need to make sure the 6th string raise finger is not also moving during the change. Also rule out any binding in the changer.
Then you can re-configure the 6th string lower rod by: [a] putting it into the lowering changer position CLOSER to the body and/or [b]] hooking the pull-rod into a bellcrank hole that is further AWAY from the body......You might have to re-rod the 1st string pull so that both changes hit their respective endpoints at the same time. Also you may need to adjust the knee-lever throw-stop too.
Last edited by Tony Glassman on 21 Oct 2008 6:52 am; edited 1 time in total |
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Charles Dempsey
From:
Shongaloo, LA
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Posted 21 Oct 2008 6:46 am
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| Tony Glassman wrote: |
| The 6th string lower is at the easiest and longest throw point at the changer.....but, I can't see what bell crank hole the lower rod hooks into.... it appears to be somewhere in the middle. |
If I recall correctly it's in the 5th hole up (up is toward the cross shaft) on the back side (away from the changer). With the 14 hole bellcranks there's prolly not 10 cents difference if it was in the hole above or below that one.
Charlie
_________________
Yes officer, I know I smell like beer. I'm not drinking it, I'm wearing it! |
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Tony Glassman
From:
The Great Northwest
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Posted 21 Oct 2008 7:08 am
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| Charles Dempsey wrote: |
| Tony Glassman wrote: |
| The 6th string lower is at the easiest and longest throw point at the changer.....but, I can't see what bell crank hole the lower rod hooks into.... it appears to be somewhere in the middle. |
If I recall correctly it's in the 5th hole up (up is toward the cross shaft) on the back side (away from the changer). With the 14 hole bellcranks there's prolly not 10 cents difference if it was in the hole above or below that one.
Charlie |
Then move it up 2 or 3 holes.......or however far you need, to be able to get that change to fully lower to F# while ending at the same time the 1st string pull finishes
.......or.......
you can just change the 1st string leverage points so it is a slightly longer easier pull and lengthen the overall lever throw so that it provides enough distance for the 6th string G# to F# to fully occur. |
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