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Topic: Linkage adjustment question |
Bill Miller
From:
Gaspe, Quebec, Canada
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Posted 24 Nov 2008 9:41 am |
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| Does your 'A' pedal move when you engage your 'C' pedal? Mine does and it causes a noise problem. Particularly when I punch the 'C' or 'B&C' combination the A pedal bounces and makes a clatter that drives me up the wall. Otherwise the linkage on my guitar is very quiet. Can anyone recommend a way to properly adjust the undercarriage so that the 'A' pedal remains totally unaffected by engaging 'C'? |
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Jack Stoner
From:
Kansas City, MO
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Posted 24 Nov 2008 11:20 am
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My Franklin does not.
What brand guitar do you have? Someone may have the answer if they know what you have. |
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Bill Miller
From:
Gaspe, Quebec, Canada
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Posted 24 Nov 2008 12:38 pm
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| Jack, my guitar is a 2000 S10-DB Carter which I bought used several years ago. I've been very happy with it except for that one issue, which hopefully is only a question of adjustment. |
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Steve English
From:
Baja, Arizona
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Posted 24 Nov 2008 1:03 pm
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Bill,
On the high B string; the A pedal pull rod typically runs right through the bell crank of the C pedal. Is there any binding going on at that point? I would think that would be the first place to look for a problem. (Both pedals raise the B to C#).
Can you lay on the floor, and while looking up at the rod, activate the C pedal and see any binding?
Another place to look would be where the rod connects to the finger.
_________________
Always remember you're unique..... Just like everyone else |
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Jerry Bull
From:
Republic, MO, USA
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Posted 24 Nov 2008 2:55 pm
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I have a guitar just like it only newer and I stuck a little piece of foam in there up under the pull rod because the pull is so long, it bounces around a little. That softened the noise, now it's virtually gone. But you may have a binding issue if your A pedal is moving alot. Mine has a little movement, but not really anything noticeable.
_________________
www.psgpicker@gmail.com (Sierra Crown D-10 keyless)2-Nashville 112's, Steelers Choice, Hilton VP, Digitech RP150, Bobro, GeorgeL's cables, BJS Bars and Picks. |
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Bill Miller
From:
Gaspe, Quebec, Canada
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Posted 24 Nov 2008 2:59 pm
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| Steve, I can't see any obvious binding. All of the potential friction points on the bell cranks are kept well lubed with teflon added gun oil. I put a drop on every pivot point as well as each ferrule and also the changer, so there's nothing dry. If there is anything binding it would have to be something misaligned, but I can't find it. |
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Steve English
From:
Baja, Arizona
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Posted 24 Nov 2008 5:16 pm
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I would remove the nylon tuning nut at the changer end from the high B string. That will deactivate the pull rod on the high B without removing any of the undercarriage parts. If the problem still exists, at least you would know it's nothing to do with that pull.
If the problem is still there, put the nut back on, tune up the high B to C# pull. You can eliminate pull rods from the equation this way. While the nylon nut is off, you might also try moving the changer with your fingers (high B string) and see if you feel any binding.
_________________
Always remember you're unique..... Just like everyone else |
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Bill Miller
From:
Gaspe, Quebec, Canada
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Posted 25 Nov 2008 3:09 pm
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| Steve, I tried removing the tuning nut as you suggested and sure enough, there is no movement of the 'A' pedal when engaging 'C'. I haven't had a chance yet to isolate the the exact point where things are binding or pinching but that is the pull rod affected. There doesn't seem to be any binding in the changer. I hope spend some time working at it tomorrow. Thanks for the advice. |
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Don Brown, Sr.
From:
New Jersey
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Posted 25 Nov 2008 5:52 pm
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Bill, with both raise (pull) rods on (finger 5) (B to C#) tuned to pitch..
With the pedals up, grab the nylon tuner for pedal A, (with your fingers) and hold it back while pushing the C Pedal down. And see if your A pedal still moves. It shouldn't! You should be able to hold that rod from moving with your fingers.
If you can't, there might be a burr on that A pedal pull rod, (where it goes through the finger) or, the rod may not be pulling level enough to allow it to float free in the pull hole, when C Pedal is being used.
(The finger has to slide free on that A pedal pull rod, when it's not being used, in order to make the C pedal raise).
If they aren't pulling farely level, the (small) pull hole, will bind against the rod just enough to cause what you're experiencing. Much the same if they're out of alignment on the pulls. (pulling on too much of an angle)
A tiny bit of oil, on the A Pedal pull rod right at the pull hole on that raise finger, (after the nylon) will also help that rod float easier, while C pedal is being used.
You might also, want to make sure there is free play with pedals up, on both of those raises. If any one of them doesn't, back off the nylons until they have slack. Then adjust the pedal stop travel for a hair past the (in tune) raised pitch, then retune the Pedals at the nylons. Both pulls should then have some free play.
PS: The holes in the fingers, work in a pretty close tolerance, on the pull rods, and therefore, there isn't much room for rods not pulling straight.
Due to my quad raise, I removed each of my lower rods, as well as a couple of the others, and put a very slight bend approximately 1 1/2 in" before they go through the fingers, to get the nylons up off of the endplate cutouts. She's playing like a dream now. Smooth as silk, and all pulling in a straight line.. I used a laser beam to do the alignment.
Hope that helps. Don |
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Steve English
From:
Baja, Arizona
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Posted 26 Nov 2008 7:47 am
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Bill,
I think you're close to finding the problem...
_________________
Always remember you're unique..... Just like everyone else |
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Sonny Priddy
From:
Elizabethtown, Kentucky, USA, R.I.P.
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Posted 26 Nov 2008 8:43 am A pedal
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| I Had The same Thing I rased The Pull Rod On The 5th String Up One Hole In The Bell Crank. That done It It Was Pullin In A Bind. SONNY. |
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Bill Miller
From:
Gaspe, Quebec, Canada
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Posted 26 Nov 2008 12:56 pm
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| Thanks for all the input, it's much appreciated. Armed with what I've learned I'll tackle the thing as soon as I have a block of time where I won't be interrupted...perhaps this evening. |
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Bill Miller
From:
Gaspe, Quebec, Canada
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Posted 27 Nov 2008 6:56 am
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| The problem seems to fixed. Turned out the high B string pull rods for the A pedal and the C pedal were touching together where they go through the C pedal bell crank. Pushing down the C pedal would exert enough pressure against the A pedal pull rod enough to make the A pedal move. I did what Sonny Priddy did and moved the pull pin on the A pedal bell crank to the second notch out from the cross shaft. It worked. Thanks to everyone here and also to Al Brisco at Steel Guitars of Canada who saw this thread and got in touch with me to help sort it out. |
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John Bechtel
From:
Nashville, Tennessee, R.I.P.
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Posted 27 Nov 2008 9:31 pm
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That's where the pull-rod belongs in the bellcrank for string #5 Raise B to C#! (The second hole away from the Crossrod.) Apparently the previous owner wanted a quicker-change on str. #5. String #3 pull-rod belongs in bellcrank hole #4, away from the Crossrod for a quicker Raise on str. #3, G# to A! BTW: The pull-rod for str. #10 belongs in hole #3 away from the Cross-rod and str. #6 pull-rod goes in hole #1 away from the Crossrod. That takes care of Pedals A & B.
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<marquee> Go~Daddy~Go, (No), Go, It's your Break Time</marquee> L8R, jb
My T-10 Remington Steelmaster |
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