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6. Adjusting the machine head (direct-drive motor type sewing machine only)
(Caution) 1. When the slip between the marker dot on the handwheel and the concave of the cover is ex-
cessive after thread trimming, adjust the angle of the machine head by the operation below.
2. It is not necessary to adjust the machine head the part of which is connected to CN33.
(Refer to “
@
-3. Connecting the cords” p. 3.)
1) Simultaneously pressing switch
4
and switch
5
, turn ON the
power switch.
2) is displayed (
A
) in the indica-
tor and the mode is changed over to
the adjustment mode.
3) Turn the pulley of the machine head
by hand until the main-shaft refer-
ence signal is detected. At this time,
the degree of an angle from the
main-shaft reference signal is dis-
played on the indicator
B
.
(The value is the reference value.)
4) In this state, align marker dot
7
on the pulley
with recess
8
on the pulley cover.
B
5) Press switch
6
to nish the ad-
justment work. (The value is the
reference value.)
7
8
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