Sho~Bud volume pedal problems

[Tele]

Hi

I need some help with this one. My 2 pedals have the same problem. I have the correct AB type J 500k pot in them but they are not working properly. The swell is either from full open to lets say 30% open or from fully closed to ~70%open.
What I mean is I don't get the pot to be turned fully open and closed ...any suggestions??? what is my mistake?

thanks
Andy

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1961 Sho~Bud D-9:1962 Sho~Bud D-10:1966 Sho~Bud D-10 : Sho~Bud Pro III : Bigsby T-8
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[Jack Stoner]

Check the way the string is connected. If there are not enough turns on the pot pulley or if there is not enough tension on the string the pot will not move enough.

I had this problem on one of my Goodrich 120 pedals (I was only getting about 80% at full volume position) and just increasing the tension a little on the pully string fixed the problem.

After you get it fixed it's off to the local Gasthaus

[Joe Donahue]

If there is a brass sleeve on the shaft of the pot, you might try removing it. My Sho-Bud pedal would only open 75-80% until I removed the sleeve. Jack Stoner's comments on string tension and turns are also important. I used 3 turns and dogged the string down fairly tightly on mine. Ensure that the string is wound in the correct direction as well. Finally, check for firm spring tension. I'm not much of a steel player so I don't know how much real players depend on the spring (mine just balances the weight of the pedal to keep it falling to full open on its own)but if you depend on the spring to take the pedal to full off, make sure the spring is doing its job. Most hardware stores have sturdy little springs that can be cut down to work. A spare changer return spring also can be cut to fit although it's probably not going to be as firm as you may like. Good luck with your project.

[Tele]

<SMALL>If there is a brass sleeve on the shaft of the pot, you might try removing it</SMALL>

Replace it with what?????
thanks for the tips so far. I'm able to fix thse pedals to an accaptable degree..now its full open and close to lets say 95%(you still can hear a tiny little bit..)

Andy

[Jack Stoner]

I always adjust the pot in my pedals so there is no signal when the pedal is in the "off" position. This does not relate to the pot shaft being in the full "off" rotation. It will be somewhere slightly above the physical off position where there is no signal. The slight difference in max volume from where you have it now will not be noticeable.

[Joe Donahue]

Whoops, sorry about that. Just remove the brass sleeve, don't replace it with anything and wind the string directly on the shaft. Sounds like you have the problem licked if you have 95% of the volume. Remember the shaft doesn't turn a full 360 degrees.