– 36 –
1) Lift the needle bar from its lower dead point by
2.8 ± 0.3 mm. In this state, adjust the needle bar
height and the hook position.
2) When observing from the front face of the sew-
ing machine, the blade point of hook seems to
overlap with the center of needle.
3) When observing from the side face of the sew-
ing machine, the clearance provided between
the blade point of hook and the scarf of needle
is 0.03 to 0.1 mm.
4-9. Needle-to-hook relationship
If thread breakage occurs, the thread can
be tangled in the hook. In such a case,
remove the thread being tangled in the
hook carefully. Then, re-start sewing.
WARNING :
Turn OFF the power before starting the work so as to prevent accidents caused by abrupt start of the
sewing machine.
(1) Needle and hook, and angle setting
0.03 to 0.1 mm
Front face Side face
2.8 ± 0.3 mm
(2) Position of the needle and the inner hook holder
4) As shown in the figure, the electrical shaft angle
setting QEP value displayed on the operation
panel becomes 440 to 445 (reference value).
Longitudinal position of the inner hook holder and
needle: The front end of needle is aligned with the
inner hook.
Lateral position of the inner hook holder and needle:
The rightmost end of projection of inner hook holder
is aligned with the right side of needle.
Содержание PS-900-13090
Страница 1: ...PS 900 13090 INSTRUCTION MANUAL...
