Needle Height; Needle/Looper Front-To-Back Relationship; Changing The Looper Orbit; Changing The Amount Of The Looper Front-To-Back Movement - KANSAI SPECIAL NC Series Parts List, Instructions

4-4 Needle height

When the needle bar is at the top of its stroke, the distance
should be the table below from the top surface of the needle
plate to the point of the needle. The point of the looper should
be 0.5~0.8mm above the top of the needle's eye on the back side
of the needle when the point of the looper has reached the center
of the needle with the machine pulley turning in the operating
direction (see 5-2).
Needle height
TYPE
（Amm）
NC1001J 15.0
NC1001SJ 12.4
< Note >
After the above adjustment, install the needle plate and
check to make sure each needle drops into the center of
needle hole.
4-5 Needle/looper front-to-back relationship and Needle guard position.
The clearance between the point of the looper and the back side of the needle should be
0~0.05mm. Then adjust the needle guard (rear) so that it presses the needle slightly to the
front. (0.2~0.3mm)
< Note >
When moving the looper holder front or back, be careful
not to change the looper setting distance.
5
NC/J
series

4-6 Changing the looper orbit

When the looper moves around the needles, the
clearance between the point of the looper and the back
side of the needle should be 0~0.05mm.
To change the looper's orbit, loosen screw B on eccentric
A and shift the timing mark by moving eccentric A front
or back. The timing mark is factory-set for standard.
not change the orbit extremely.

4-7 Changing the amount of the looper front-to-back movement

■ The clearance between the point of the needle and the back
side of the looper when the looper moves to the right from
the extreme left end of its travel should be 0.1~0.2mm (The
needle is pressed to the back).
■ The amount of the looper front-to-back movement is factory-
set properly for needle count #21 (Nm130).If you use needle
counts Nm100~125, adjust the amount as required.
■Remove the inside cover.
Loosen nut B while holding screw A for the looper front-
to-back adjusting pin with a screwdriver.
Then move the front-to-back rod front or back.To
increase the amount, move alignment mark D on the
front-to-back rod to the front from mark C on the looper
bar guide. To decrease the amount, move mark D to
the back. Adjust according to the needle count.
6
Do
NC/J
series