SunStar SC 7200 Series - Adjustment of Automatic Thread Trimmer

46
A. The desirable stroke is 15mm.
B. Loosen the screw ② of the collar ① to adjust the
stroke.
(1) Adjusting thread trimming air cylinder
5) Adjustment of automatic thread trimmer
[ Figure 72 ]
[ Warning ]
Before adjustments, always turn off the motor switch and check to make sure that the motor is in stop mode.
②
①
15mm
[ Figure 73 ]
②
⑤
①
④
③
A. Bring in parallel side ② of the moving blade ① and
side ④ of the moving blade body ③.
B. Adjust the screw ⑤.
(2) Position of moving blade
A. Unfasten the screw ⑩.
B. Bring in parallel the needle thread hook ⑥ of the
moving blade and the corner ⑧ of the fixed blade ⑦.
C. When the moving blade is at the far right, move the
fixed blade ⑦ left and right to set the clearance
between the fixed blade ⑦ and the looper thread hook
at 0.5mm.
D. Tighten the screw ⑩.
(3) Adjustment between moving blade and fixed blade
[ Figure 74 ]
⑨
⑥
⑧
⑦
⑩
0.5mm
[ Caution ]
The operation status of the automatic thread trimmer
should be re-adjusted when air cylinder stroke
changes. Check the status of the limit switch.
(Refer to 9-2 Wiring)
[ Warning ]
The trimming device can be moved manually only
when the needle is at the highest point. Otherwise,
parts can be damaged.