Adjust Upper Thread Holder - SunStar SPS/D-BH-6000 Series User Manual

2) Adjust Upper Thread Holder

A. Adjust the position of the side of the upper thread holder
Generally, the baselines of the sewing starting point A and the sewing ending point B are different when sewing eyelet
button holes. Therefore the thread holder setting cylinder① alters the baseline of the upper thread holder.
B. Adjust the position of the sewing starting baseline
ⓐ Manually move the X-Y feed base to the sewing starting point.
ⓑ Confirm that the thread holder setting cylinder① is on.
ⓒ Use the adjusting screw② and nut③ to make the center of zigzag switch length in line with the center of the thread
holder front endⓐ.
ⓐ
58
A
B
①
[ Fig. 29 ]
②
③
①
[ Fig. 30 ]