1: The shuttle box is not installed properly.

Eliminate the method:

(1) push the shuttle frame out of the position, when the bending axis in the former give up the heart, push the shuttle should protrude the front gate 0.8mm, push the head of the head and the bottom of the shuttle box at right angles, push the shuttle box and shuttle bottom plate The distance is 1.6mm. Usually full shuttle into the shuttle box, turn the bending axis, shuttle shuttle contact shuttle, the shuttle in the shuttle box has a little before and after the traverse is appropriate.

(2) the safety spring to have the appropriate strength to support the saddle screw to the shuttle into the shuttle box, does not make the safety spring rod beating phenomenon.

(3) The ram should be located at the center of the saddle screw or slightly 0.4mm below. In the wide loom, hit mouth lift should be high is appropriate.