David 3 - sticking shaft

With the David 3, some weave structures where you are lifting 6 against 2 shafts, for example, you may find that 1 or more of the shafts that should not lower, get pulled down anyway. There are a couple reasons why this may happen

First, look very closely for a heddle that has been split between two shafts, or a heddle that fell off the end of a shaft bar and is getting caught as you raise and lower shafts. If this is the problem, cutting away the offending heddle is the simplest solution.

If this is not the issue, try this next solution

Remove the shelf and expose the cams and springs. You are going to disconnect a spring from the cam texsolv cord and re-attach closer to the cam. you are basically shortening the connection point of the spring to the cord. Make sure you don't let go of that cord as it will want to pull away.

Louët has a support article and video that shows this solution.

Louet support article