Megado/Octado - Dobby knife is stuck between the screw heads of the dobby hooks.

Possible reasons:

1. You moved the dobby by hand while you kept the treadle for the shed pushed in.

2. With a second warp beam and a sectional warp beam we supply extra springs, which help to compensate for the extra weight of the back part. If these springs are adjusted with too much tension, you will experience that the whole back part of the loom bounces when the shed treadle is released. If the dobby position is changed at the moment that the back part jumps back up, screw heads above the knife can come forward and block the knife. In both cases you can eliminate the problem by turning the roller of the dobby head half way between two positions and moving the knife up and down with the treadle for the shed. All the screw heads will come free. When the knife is all the way up again, you turn the roller into a fixed position.