Trimming Device - SunStar SPS/S-CV1 Manual

4.6) Trimming device

4.6.1) Setting thread trimming cam
Adjust the distance between upper shaft collar and thread trimming cam to 2.5mm. Locate the cam carved line in the same
line with the shaft carved mark, and then tighten the turnbuckle.
Upper shaft
Upper shaft collar
If the cam is in a wrong position, the trimmer may not work properly, or the machine may
be stuck.
CAUTION
4.6.2) Adjusting link stopper screw
1) Check whether there is enough space between the cam roller and the both sides of the cam when push the thread trimming
drive link toward the cam direction at the lowest level of needle bar within the cam operating area.
2) With the roller inserted into the cam operating area, adjust the end part of the link stopper screw to reach the tightening
part of the trimming connecting rod and then tighten nut.
1) If there is no enough space between the roller and the both sides of the cam, the trimmer
may not work properly, or the machine may be stuck at the beginning of sewing or during
trimming.
2) If the link stopper screw is in a wrong position, the cam roller may return to its original
CAUTION
position slowly after trimming and the screw may not be tight enough during sewing.
Thread trimming drive
cam roller
Connecting rod
Thread trimming cam
2.5mm
①
Enough space
Enough space
Thread trimming cam
Link stopper screw
Nut
Carved line
Thread trimming drive link
Link stopper screw
Thread trimming connecting rod
Carved mark
Upper shaft
27