Machine screw that sets pedal travel on Emmons

[Rigby]

Does anyone know the size and thread of this bolt?



I need to get a shorter one as the head is hitting the metal part before the tip hits the cabinet.

[JohnDavisStringsHere]

how about take it out find a couple of nuts that suit the thread and wind em on it then cut a bit off and use the nuts to clean the thread before replacing it

[Rigby]

I doubt I have any nuts that fit, it'll be an Imperial size for sure. Not to worry, I can take it into BAPP tomorrow and get them to hunt for something.

[bob adams]

6/32

[Rigby]

Thanks Bob.

[Zebedee]

Is that your A pedal or C pedal
If it's your A pedal then I think there may be too much slack in the raise rods
If it's the C pedal, the slack is necessary

[Rigby]

It's the C pedal. At the moment, if it's set up so the C pedal raises the 4th string all the way to F#, it doesn't quite leave enough slack for the D lever to lower it to E flat. So I think I need to compensate by increasing the amount of slack and also increasing the pedal travel.

[Zebedee]

You need to have more movement of the changer finger without much altering of the C pedal travel
This can be achieved (albeit at the expense of a slightly heavier C pedal and F lever pull) by making sure that the raise hook wire is in the changer finger hole nearest the axle

Attachments

[Rigby]

Thanks, yes the raise hook wire is already in that position. I think there just needs to be a little more travel, I can't see any other way to get both changes in tune.

[Zebedee]

Have you got the correct string gauge for the 4th string?
It should be a .014" plain