26
CZ8000
6.Adjustments of sewing machine
Make sure that the clearance between the front and rear
is 0.05 - 0.1 ㎜ and between the right and left is 0.05 -
0.3 ㎜ when the lower looper ① meets the upper looper ②
while rotating the machine pulley clockwise.
Be sure to let clearances in the above mentioned ranges.
①
②
0.05 - 0.1 ㎜
0.05 - 0.3 ㎜
6.7 Needle and needle guards
Fig. 6-21
6.6.8 Timing relation between lower looper and upper looper
6.7.1 Needle and needle guard (rear)
This machine is equipped with the movable needle guard
(rear) ③ which is interlocked with the lower looper.
The needle guard (rear) ③ holds the needle from the rear
and protect the lower looper tip when the needle meets
the lower looper tip during upward movement process from
the lowest point.
Loosen the screw ④ to make the clearance between the
lower looper tip and the needle to 0 - 0.05 mm.
In case of 2-needle machine, make adjustment basing on
the left needle in the same way as the single needle ma-
chine.
6.7.2 Needle and needle guard (front)
Loosen the screw ⑥ to make the clearance between the
needle guard (front) ⑤ and the needle to 0.02-0.05 ㎜.
In case of 2-needle machine, make adjustment basing on
the left needle in the same way as single needle machine.
Fig. 6-23
Fig. 6-22
⑤
⑥
0.02 -
0.05 ㎜
0 - 0.05 ㎜
③
④
