Adjusting The Machine Head (Direct-Drive Motor Type Sewing Machine Only) - JUKI SC-920 Instruction Manual

7. 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 cover is ex-
cessive after thread trimming, adjust the angle of the machine head by the operation below.
❸ ❹
❸ ❹
❸ ❹
Ⓐ
❺
❻
Ⓑ
❺ ❻
❽
❼
❺
❻
– 13 –
1) Simultaneously pressing
and
switch.
is displayed ( Ⓐ ) in the indica-
2)
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 reference
signal is detected. At this time, the
degree of an angle from the main-shaft
reference signal is displayed on the in-
dicator Ⓑ . (The value is the reference
value.)
4) In this state, align the white dot ❼ of the handwheel
with the concave ❽ of the pulley cover as shown in
the figure.
5) Press
adjustment work. (The value is the
reference value.)
switch ❹
switch ❺ , turn ON the power
switch ❻ to finish the