② Check the weft insertion angle and reaching angle
A big shock occurs when the weft reaches the end.
And the weft may break because it cannot withstand this shock.
To reduce this shock, the weft speed must be reduced.
In order to slow down the weft speed,
it is necessary to advance the timing of inserting the weft or delay the timing of the weft reaching the end.
By doing so, the pressure of the air in the main nozzle is reduced and the speed of the weft is reduced.
For example :
Change 90 ° to 230 ° from 80 ° to 230 °.
Change 90 ° to 230 ° from 90 ° to 240 °.