SunStar SC 7200A Series User Manual page 45

[ Warning ]
Before adjustments, always turn off the motor switch and check to make sure that the motor is in stop mode.
(4) Position of clamp spring and clamp spring pressure
A. Loosen the screw ⑩.
B. Adjust so that the side of the clamp spring ⑪ and the
side ⑫ of the moving blade ① are aligned with each
other.
C. Tighten the screw ⑩.
D. Loosen the screw ⑭.
E. Adjust so that the side of the clamp spring pressure ⑬
is parallel to the side of the clamp spring ⑪ and the
moving blade①.
F. Set a clearance of 2.0mm between the end tip of the
clamp spring pressure ⑬ and the end tip of the fixed
blade.
G. Fix the screw ⑭ tightly.
(5) Pressure adjustment of clamp spring
A. The looper thread is caught by the clamp spring after
trimming
B. To increase pressure, turn the screw ⑮ clockwise and
to decrease pressure, turn it counter-clockwise.
[ Caution ]
If the looper thread is caught securely after
trimming, keep the pressure to the minimum.
⑫
① ⑪ ⑬
2mm
⑪
2mm
⑬
⑪
⑭
⑩
[ Figure 75 ]
⑮
[ Figure 76 ]
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