Adjustment Of Automatic Thread Trimmer - SunStar SC 7200A Series User Manual

5) Adjustment of automatic thread trimmer

[ Warning ]
Before adjustments, always turn off the motor switch and check to make sure that the motor is in stop mode.
(1) Adjusting thread trimming air cylinder
A. The desirable stroke is 15mm.
B. Loosen the screw ② of the collar ① to adjust the
stroke.
[ 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)
(2) Position of moving blade
[ Warning ]
The trimming device can be moved manually only
when the needle is at the highest point. Otherwise,
parts can be damaged.
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.
(3) Adjustment between moving blade and fixed 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.
44
①
②
15mm
①
⑦
⑥ ⑧
⑨
⑩
0.5mm
[ Figure 72 ]
④
②
⑤
③
[ Figure 73 ]
[ Figure 74 ]