SunStar SPS/B-2516 Series - Adjusting the spring on the upper side of the shuttle; Adjusting the moving knife and the fixed knife

49
[Fig. 71]
[Fig. 70]
1mm
󳟆
①
①
①
󳟆
①
→
→
2mm
[Fig. 72]
G
H
4.5mm
5.3mm
1~1.2mm
1~1.2mm
AB
→
→
↔
B
A
5) Adjusting the spring on the upper side
of the shuttle
A. Adjusting the spring on the upper side of the
shuttle.
After removing the lower feed plate and the needle
plate from the machine, unfasten the upper side
spring screw. Place the spring on the upper side
of the shuttle so that the center of the needle
meets point 󳟆 vertically, and is 1mm apart from
point 󳟆 horizontally. Then tighten the screw.
B. How to set the upper thread loop control
plate in place
Unfasten the upper thread loop control plate
screw ①, then place the upper thread loop
control plate so that the end of the upper
thread loop control guide 󳟆 is 2mm apart
from the center of the needle. Then, tighten
the upper thread loop control plate screw.
[ Caution ]
If the surface around the spring is rough or
scratched, the thread may be disconnected or the
thread strand may be unfastened. Always check the
surface before operating the machine.
6) Adjusting the moving knife and the fixed knife
A. Use the trimming lever control screw to adjust the space between the thread removing point of the
moving knife and the needle plate hole as indicated in the table with the needle bar stopped at the
upper position.
B. Use the fixed knife screw to adjust space B between the fixed knife and the needle plate cover as
indicated in the table.
C. Check the position of the mes by trimming manually after the adjustment.
Moving
knife
Needle Plate
Cover
Fixed knife
Upper
Thread
Loop
Adjusting
Plate
Upper Thread Loop
Adjusting Guide