Distance Between Needle And Upper Looper; Back-And-Forth Position Of Upper Looper - Yamato AZ8600SD Instruction Manual

6.Adjustment of sewing machine

6.9.2 Distance between needle and upper looper

Rotate the machine pulley clockwise and move the
upper looper ① to the extreme left. Make the
distance between the upper looper ① tip and the
center of the needle to 5.0 － 5.5 mm.
(1) Loosen the screw ② .
(2) Make the looper thread eyelet ③ away from
auxiliary looper holder cover ④ .
(3) Remove the screw ⑤ .
(4) Remove the cover ④ .
(5) Loosen the screw ⑥ to make adjustment.
Tighten the screw ⑥ while pressing it against to the
machine, after adjustment.

6.9.3 Back-and-forth position of upper looper

The thick portion (around the needle eye) of the
upper looper will be very close to the right nee-
dle when the upper looper moves from the extreme
left to the right while rotating the machine pul-
ley clockwise.
Loosen the screw ⑦ to make the clearance between
the back side of the upper looper ① and the nee-
dle to 0.05 － 0.1 mm.
AZ8600SD
5.0 － 5.5 ㎜
①
Fig. 6-20
Fig. 6-21
Fig. 6-22
0.05 －
0.1 ㎜
①
Fig. 6-23
30
③
⑤
⑦
①
②
④
⑤
⑥