![background image](http://html.mh-extra.com/html/yamato/az7000sdr-8/az7000sdr-8_instruction-manual_905396043.webp)
33
AZ7000SDR-8, 7500SDR-8
6.Adjustment of sewing machine
6.9.7 Back and forth position of upper looper
6.9.6 Distance between needle and upper looper
Rotate the machine pulley clockwise and move the upper
looper to the extreme left. Make the distance between the
upper looper tip and the center of the needle to 5.0 to 5.5
mm.
(1) Loosen the screw ②. (Fig. 6-28)
(2) Make the looper thread eyelet ③ away from auxiliary
looper holder cover ④. (Fig. 6-29)
(3) Remove the screw ⑤.
(4) Remove the cover ④.
(5) Loosen the screw ⑥ to make adjustment. (Fig. 6-30)
The thick portion (around the needle eye) of the upper
looper will be very close to the needle when the upper
looper moves from the extreme left to the right while ro-
tating the machine pulley clockwise. (In case of 2-needle
machine, it will be close to the right needle.)
Loosen the screw ⑦ to make the clearance between the
back side of the upper looper ① and the needle to 0.05 to
0.1 mm.
Fig. 6-28
5.0 - 5.5 mm
①
②
⑥
Fig. 6-30
Fig. 6-29
⑤
③
④
⑤
Fig. 6-31
0.05 -
0.1 ㎜
⑦
①
①
Tighten the screw ⑥ while pressing it against to the ma-
chine, after adjustment.
ÁÔÔÅÎÔÉÏÎ