JUKI MF-7923 - Adjustment by the Eccentric Cam

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(2) Adjustment by the eccentric cam
1) Remove the top cover.
2
）
Loosen screw
1
.
3) Turn the eccentric cam. The direction of turning the
eccentric cam and the relation between the eccen-
tric cam and the needle thread loop is shown in the
following table.
4) After the adjustment, fully tighten screw
1
.
* With the factory-adjusted value at the time of ship-
ment, the marker lines are aligned.
Eccentric cam
1
¡
Size of needle thread loop
A
Move forward
B
Move backward
Loop becomes smaller Loop becomes larger
Marker lines
g
h
B
A