Weft insertion trouble  loop⑥

⑥ Check the mounting position of each part near the crank angle of 180 °

Is there a tandem nozzle on the center line of the EDP?
Is the mounting position of the tandem nozzle and the main nozzle in a straight line?

If the position shifts, the thread may get caught in a strange place.
              
Align the center lines of the drum and tandem nozzle as shown above.

                

Align as shown above.
When adjusted at 180 °, the suction port of the main nozzle is arranged so that it is on the extension line of the nozzle.

What happens when you shift

In some cases, some of the thread blown out from the tandem nozzle did not enter the main nozzle and jumped out.

 

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