SunStar SPS/B-2516 Series User Manual page 32

E. Setting the thread trimming solenoid in place
ⓐ After unfastening the thread trimming solenoid bracket screw, have the trimming shaft and the
thread trimming solenoid rotary link 0.5mm apart from each other and tighten the screw back on.
ⓑ Unfasten the thread trimming solenoid rotary link screw and drive the thread trimming solenoid
rotary link manually to move the trimming shaft collar 6.8mm in the direction of the arrow. Then,
tighten the screw back on.
ⓒ Check if the trimming shaft collar returns to its place when the thread trimming solenoid rotary link
returns.
[ Caution ]
If the position is not set right, the trimming return or the thread delay may be delayed to bring poor
sewing quality.
F. Adjusting the moving Knife and the fixed Knife
ⓐ When the needle bar stops at the upper position, use the trimming lever adjustment screw to
adjust space A between the thread separation point of the moving knife and the needle plate
hole as indicated in the table.
ⓑ Use the fixed knife screw to adjust space B between the fixed knife and the needle plate cover as
indicated in the table.
ⓒ After the adjustment, check the position of the knife by manual trimming operation.
[ Caution ]
Trimming may not be operated or there may not be enough remaining knife if the knife is set inappropriately.
32
Screw
Thread Trimming Rotation Link
Knife
Needle Plate
Cover
Thread Trimmer Solenoid Bracket
Solenoid
Screw
0.5mm
Thread Trimmer Shaft
Moving Knife
Thread Trimming
Rotation Link
→ →
6.8mm
[Fig. 47]
A B
G 4.5mm 1~1.2mm
H 5.3mm 1~1.2mm
[Fig. 48]