Astralux 9300A - Height of Needle Bar

a
E
6-10 Height of needle bar
- Choose patterns #1.
1) Remove face plate and needle plate.
2) Remove the screws of rotary hook plate
(A, B) and rotary hook plate, and take out
the shuttle hook.
3) Put the gauge of height of needle
2.54~2.80 mm (D) into the shuttle hook
holder, and turn the hand wheel to set the
needle at the lowest point.
4) Turn the gauge of height of needle, and
the standard is between 2.54~2.80 mm.
5) If it's not fit the standard of measure, loose
the needle bar bracket (a) to adjust the
needle bar's (E) position for measuring the
correct height of needle bar.
Lift the needle bar will cause insufficient
height of needle bar. Pull down the needle
bar, and the height of needle bar will too
deep. (3)
6) Fasten the screws (a) after confirming the
height of needle bar. (When the needle
position is on the lowest point, the
distance between the top of needle hole
and the path of shuttle hook holder should
be 4.75 0.1mm, refer to iconography 4)
7) Re-assemble back the rotary hook plate
after adjusting the height of needle bar.
Be sure the play of shuttle driver shaft is
correct. (Please reference page 22 for
examination)
±
18
1
2
C
A
B
D
4.75 0.1mm±
Needle
Needle hole
4
3