I use MK custom deluxe alembic since 2007.  
 
In these days, the neck of my bass have a problem slight back brow. So I removed the truss rod cover on my bass, I tried to turn the nut conterclockwise. But!! the truss rod had already fully turned conterclockwise.....
 
So, What can I do next??

Have a read of this It may help
http://club.alembicguitars.net/Images/16271/17251.html?1111061967
 
 
 http://club.alembicguitars.net/Images/16271/16920.html?1109892258
Jazzyvee
 
(Message edited by Jazzyvee on January 06, 2012)