– 15 –
ENGLISH
5. Loosen looper setscrew
6
and looper clamping
screw
7
and carry out the adjustment.
6. Check to be sure that a distance of approximately
3.2 mm is provided between the center of the needle
and the blade point of the looper when the looper
reaches its back end.
6
7
Approx. 3.2 mm
Needle
5
Needle
4
B
(Determining the looper position)
3. Loosen gear setscrew
5
to adjust so that looper
4
reaches its back end when the needle bar is at the lower
point of its stroke.
4. Carry out adjustment so that the blade point of looper
4
aligns with the center of the needle, so that the former
is spaced 1.5 mm from the upper end of needle eyelet and so that a clearance of 0.05 mm is provided between
the looper and the needle when second marker line
B
on needle bar
2
is aligned with the bottom end of
needle bar lower bushing
3
.
Содержание MH-481
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