10
AZ-SD, AZF-G/BT43
3.
Proper operation
Fig. 3-1
3.1 Seam condition and device operation
3.1.2 Device operation
3.1.1 Tension releaser operation
(1) Pull a thread chain backward and bring it to
the front.
(2) Pull a thread chain from the left to the
right along the cloth plate. Then, the
thread chain cutter cuts the thread chain
and holds the remaining portion. (At this
moment, preparation for back-tack sewing is
completed.)
(3) Sew a material.
(4) Raise the presser foot to pull a thread
chain backward.
(5) Bring the thread chain to the front.
Pull the thread chain from the left to the
right along the cloth plate.
Then, the thread chain cutter cuts the thread
chain and holds the remaining portion.
Repeat Steps (3) to (5).
To adjust the plain sewing seam condition, turn
the thread tension spring caps ① to ④ in Fig.3-
1.
To adjust the thread chain seam condition, turn
the thread tension spring caps ⑤ , ⑥ in Fig.3-1.
Thread chain tension adjustment
(1) Turn the motor switch ON.
(2) Turn the control box switch ON.
(3) Sew a material and pull a formed thread
chain back.
At this moment, adjust the caps ⑤ and ⑥ so
that the thread chain forms a cord. (Under
this seam condition, the needle threads are
loose and the looper threads are tight.)
①
②
③
⑤
⑥
④
