32
AZ8600SD
6.Adjustment of sewing machine
Check that the clearance is 0.05 － 0.1 ㎜ back
-and-forth and 0.05 － 0.3 ㎜ right and left when
the lower looper ④ meets with the upper looper ⑤
while rotating the machine pulley clockwise.
It is correct timing within those clearances.
Fig. 6-31
④
⑤
0.05 － 0.1 ㎜
0.05 － 0.3 ㎜
Fig. 6-28
Tighten the screw ① after checking the height of needle.
(See
“6.9.1 Height of needle”)
After adjusting the front-and-rear position of the lower
looper, be sure to check the distance between the needle
and the lower looper and tighten the screw ③ .
6.9.7 Parallel of needles
In case of 3-needle safety stitch machines, loos-
en the screw ① and make adjustment by turning
the needle clamp slightly. Make the clearance the
same as the left needle to 0 － 0.05 mm when the
right needle meets the lower looper ② .
Also, refer to “6.9.1 Height of needle”
on page
28.
ÁÔÔÅÎÔÉÏÎ
Fig. 6-29
needle
0 －
0.05 ㎜
②
6.9.8 Timing between lower looper and upper looper
①
③
Fig. 6-30
