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(9) Adjusting the machine head (direct-drive motor type sewing machine only)
(Caution) When the slip between the white marker dot on the handwheel and the concave of the cov-
er is excessive after thread trimming, adjust the angle of the machine head by the opera-
tion below.
1. Simultaneously pressing
switch
and
switch
, turn ON the
power switch.
2. is displayed (
) 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
.
(The value is the reference value.)
4. In this state, align the white dot
of the hand-
wheel with the concave
of the pulley cover as
shown in the figure.
5. Press
switch
to finish the ad-
justment work. (The value is the
reference
value.)
Содержание SC-920
Страница 1: ...SC 920 40089311 No E393 00 ENGINEER S MANUAL...
Страница 71: ...67 2 IP 110F operation panel block diagram...
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