JUKI PS-900-13090, Instruction Manual

Page: 22 / 99

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Adjustment of the hook driving shaft saddle and the
needle bar in lateral direction:
6) Turn the hook driving shaft saddle by 180°.
Then, check whether the hole in the T-shaped
jig and the needle bar jig are laterally aligned.
7) If they are laterally aligned, adjustment of the
hook driving shaft saddle and the needle bar in
the X direction is not necessary.
8) If they are not laterally aligned, carry out steps 9)
and beyond to adjust the alignment between the
hook driving shaft saddle and the needle bar in
the lateral direction.
180 180
xm
xm
[How to adjust the alignment between the hook driv-
ing shaft saddle and the needle bar when you have
turned the hook driving shaft saddle by 180° and
found that they are not aligned]
9) If the hole in the T-shaped jig is located x mm
to the right side of the needle bar jig after you
have turned No.5, adjust the hook driving shaft
saddle by moving it to the left to reduce the gap
to half, i.e., x/2 mm. (Refer to
"3-1-11.2. How to
adjust the position of the hook driving shaft
saddle" p.20
.)
Adjustment of the hook driving shaft saddle and the needle bar in longitudinal direction:
13) Similarly with the adjustment of the hook driving shaft saddle and the needle bar in the lateral direc-
tion, adjust them in the longitudinal direction. Turn the hook driving shaft saddle by 90° and attach the
T-shaped jig to it. Then, adjust so that the needle bar jig passes through the hole in the T-shaped jig
when you lower the needle bar.
14) Carry out the steps 6) through 12) in repetition to test and adjust the hook driving shaft saddle and the
needle bar until they are longitudinally aligned.
10) If the hole in the T-shaped jig is located x mm to the left of the needle bar jig, adjust the hook driving
shaft saddle by moving it to the right to reduce the gap to half, i.e., x/2 mm.
11) Adjust the position of the T-shaped jig so that the needle bar jig is laterally aligned with the hole in the
T-shaped jig.
12) Carry out the steps 6) to 12) in repetition until the needle bar jig and the hole in the T-shaped jig are are
laterally aligned.