SunStar SPS/D-B1201 SERIES User Manual page 34

B. Setting the position of the thread release stopper
ⓐ Remove the thread release return spring.
ⓑ Loosen the thread release stopper screw and set a clearance between the trimming drive link and the thread
release lever pin at 0.3mm. Push the stopper to the right to narrow the clearance, and to the left to widen the
clearance between the trimmer driving link and the thread release lever pin.
ⓒ Replace the thread release return spring.
[Caution]
For safety, use a tool when removing or attaching the thread release return spring.
Thread Release Lever Pin
0.3mm
C. Adjusting the opening of the thread guide disk
ⓐ Loosen the screw of the thread release control plate.
ⓑ Start trimming to open the thread guide disk.
ⓒ Adjust the opening at 0.6~0.8mm for general materials, and at 0.8~1mm for thick materials. Widen the angle
between the thread release control plate to increase the opening, and narrow the angle to reduce the opening.
ⓓ After adjustments, fasten the screw.
[Caution]
If the opening is not appropriate, the amount of the remaining thread may not be sufficient or consistent, and/or the disk
may not close completely.
Upper Shaft
Towards The Thread Tension Control Device
34
Thread Trimmer
Driving Link
Widen
Narrow
Screw
Thread Tension Control Plate
Towards The Thread Release Link
Thread Release Return Spring
Screw
Thread Release Stopper
Narrow
Widen
→ →
[Figure 67]
Opening Amount
[Figure 68]